JP4910176B2 - Support, furniture with top plate - Google Patents

Description

  The present invention relates to a support that is supported by a base and supports a support object such as a top plate, and furniture with a top plate that includes the support.

  In order to realize an optimal work style according to the time of use, work content, etc. in an office, etc., the applicant is supported by a base extending in a predetermined direction and supports a support object such as a top board, A contact body that can be in contact with a part of the rail groove, a rolling element that can be in contact with a part of the rail groove, and a movement in which the contact body is in contact with a part of the rail groove in preference to the rolling body A support body provided with a switching mechanism that can be switched between a restricted state and a movement-permitted state in which the contact state between the contact body and a part of the rail groove is released and the rolling element is brought into contact with the rail groove. Has been invented and filed (see Japanese Patent Application No. 2006-308509).

  The support body can be slid along the extending direction of the base by switching the switching mechanism from the movement restriction state to the movement permission state, and a support object such as a top plate supported by the support body is also a base. Therefore, the user (worker) can easily and quickly change the relative position of the support object such as the top plate with respect to the base. Work style can be realized.

  When the switching mechanism is in the movement restricting state, the support body adopts a mode in which a surface of the contact body that can face the inner wall of the rail groove is brought into contact with the inner wall of the rail groove. In this way, even if it is an aspect based on the technical idea of regulating the sliding movement of the support by abutting the surfaces, the braking performance can be sufficiently exerted, but the sliding movement of the support with respect to the base In order to further improve the braking performance in the case where the control is restricted, the applicant has made extensive studies and came up with the present invention based on a technical idea different from the above-described aspect.

  That is, the support of the present invention is slidably supported by a base extending in a predetermined direction and supports a support object such as a top plate, and is a rail provided along the extending direction of the base. A guided body that is slidable while being guided by the groove, a brake body that can be pressed against the rail groove, and a non-pressure contact position that is not pressed against the rail groove; and A switching mechanism that is switchable between a movement-permitted state that allows the slide movement relative to the base by being positioned at a non-pressing position and a movement-restricted state that restricts the slide movement relative to the base by positioning the brake body at the pressure-contacting position; It is characterized by comprising.

  If this is the case, when restricting the relative movement of the support object with respect to the base, the switching mechanism is switched from the movement-permitted state to the movement-restricted state, and the brake body is pressed against the rail groove. The sliding motion of the guided body is restricted by the friction generated between the rail groove and the support body can be firmly and securely fixed to the base without requiring additional work such as screw tightening. Relative movement, and thus relative movement of the support object with respect to the base can be restricted.

  On the other hand, when changing the relative position of the top plate with respect to the base, the brake mechanism is braked by switching the switching mechanism from the movement restricted state to the movement permitted state and moving the brake body to a non-pressure contact position that does not press the rail groove. The function cannot be performed, the guided body can be slid along the rail groove, and the relative position of the support relative to the base, and thus the relative position of the support object relative to the base, can be changed easily and quickly. Can do. In addition, since the guided body is slid along the rail groove provided continuously, the relative position change of the support object with respect to the base can be adjusted steplessly. The relative position can be finely adjusted, and the utility is excellent.

  In addition, if the brake body has a tapered surface and the tapered surface can be pressed against the rail groove by a wedge action when positioned at the pressure contact position, the tip surface of the brake body is simply used as the rail groove. The friction generated between the brake body and the rail groove due to the wedge action of the taper surface, compared to the mode in which the outer surface of the rail is pressed against the surface in the rail groove or the brake body having no taper surface is packed in the rail groove The sliding movement of the guided body can be more reliably regulated by this friction, and the relative movement of the support body with respect to the base, and consequently the relative movement of the support object with respect to the base can be regulated.

  In particular, if the brake body is elastically deformable, when the brake body is moved from the non-pressure contact position to the pressure contact position, the taper surface can be more reliably brought into pressure contact with the rail groove by elastic deformation. The braking function is improved.

  In order to further improve the braking function of the brake body, each of the brake bodies has a tapered surface at a position where the brake body can face each other, and when the brake body is positioned at the pressure contact position, each tapered surface is What is necessary is just to be press-contactable to the opening edge part of a rail groove.

  If the brake body reciprocates along a linear movement locus between the pressure contact position and the non-pressure contact position, the operation of the brake body can be simplified. Contributes to the stability of mobility.

  Further, if the movement direction of the brake body from the pressure contact position to the non-pressure contact position is a direction retracted from the rail groove, the brake body positioned at the non-pressure contact position is retracted to the outside of the rail groove, It is possible to prevent the brake body positioned at the non-pressure contact position from abruptly hitting the rail groove and to ensure the smoothness of the sliding operation of the guided body.

  Further, an urging means for urging the brake body toward the pressure contact position, and the urging force of the urging means when the switching mechanism is switched from the movement restricting state to the movement allowable state. If the switching mechanism is switched from the movement-permitted state to the movement-restricted state, the urging means can be used to hold the brake body. When the switching mechanism is switched from the movement-restricted state to the movement-permitted state, the brake body is resisted against the urging force of the urging means by the non-pressure-contact position holding means. By holding in the non-pressure contact position, the guided body can smoothly slide and the slide of the support and the support object with respect to the base can be performed easily and appropriately. That.

  As an example of the non-pressure contact position holding means, one using a latch device provided with a single latch claw that can be engaged with a plurality of different engagement target portions can be cited.

  As a specific embodiment of the switching mechanism, a brake body holding portion movable between a first holding position and a second holding position in a state where the brake body is held, and the brake body holding portion are connected to the first holding position. An operation unit for performing an operation of moving between the first holding position and the second holding position, and positioning the brake body at the first contact position by positioning the brake body holding unit at the first contact position. Examples include the movement restricted state, and the movement permitting state in which the brake body is positioned at the non-pressing position by positioning the brake body holding portion at the second holding position.

  In addition, an operation performed on the operation unit when the brake body holding unit is moved from the first holding position to the second holding position, and the brake body holding unit is moved from the second holding position to the first holding position. If the operation to be performed on the operation unit when moving to the same position is the same, the operability is excellent.

  Furthermore, the operation unit applies a predetermined operation force to the operation end, so that the lock position that is positioned when the brake body holding unit is in the first holding position, and the brake body holding unit It is movable between the non-locking position positioned when it is in the second holding position, and a plurality of the operation parts are provided so that the operation ends are positioned at positions separated from each other by a predetermined distance. If an operation unit synchronization mechanism that synchronizes the movement between the unlocked position and the locked position is provided, a plurality of operation units can be used by disposing each operation end at a predetermined distance from each other. The person can move the brake body holding portion between the first holding position and the second holding position by applying a predetermined operation force to the operation end of the nearest operation portion among the plurality of operation portions. Come, and excellent operability. In addition, the operation unit synchronization mechanism allows the operation unit other than the operation unit to which the user has directly applied the operating force to be synchronized between the locked position and the unlocked position in synchronization with the operation unit to which the user has directly applied the operating force. When moving the brake body holding portion from the first holding position to the second holding position, and when moving the brake body holding portion from the second holding position to the first holding position. Even when the operating portion for applying the operating force is different, the brake body holding portion can be accurately moved based on the operating force.

  In order to make the movement of the brake body holding part stable, the brake body holding part should have guide means for guiding the movement of the brake body holding part between the first holding position and the second holding position. Is preferred.

  In the case where the support body is a frame structure in which a plurality of frames are assembled to each other, the guide means is installed between different frames of the support body. A guide rail that is handed over and a guided portion that can face the guide rail of the brake body holding portion, and the guide portion is moved along the guide rail in a state of being close to or attached to the guide rail. As long as it guides the movement of the brake body holding portion between the first holding position and the second holding position, the guide means can be realized with a simple structure, and the guide rail of the guide means The guide rail itself also functions as a reinforcing part of the support body itself because it is bridged between different frames of the support body, which is a frame structure. That.

  Moreover, the furniture with a top plate according to the present invention includes a base having a rail groove provided continuously along the extending direction, and the above-described support body supported by the base so as to be slidable using the rail groove. And a top plate supported by the support.

  As described above, according to the present invention, when the slide movement of the support body relative to the base is permitted while the slide movement of the support body relative to the base is to be restricted, the taper surface formed on the brake body is railed by the wedge action. By pressing the groove, the support can be firmly and securely fixed to the base.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The support 4 according to this embodiment is applied to the desk 1 shown in FIGS. 1 and 2. FIG. 2 is a diagram schematically showing a cross section taken along line xx of FIG.

  The desk 1 includes a base 2 extending in the horizontal direction, a base support 3 that supports the base 2, a support 4 that is slidably supported along the base 2, and one end supported by the support 4. And a leg 6 that supports the other end of the top plate 5 and contacts the floor F. FIG. 1 shows an office configuration system formed by connecting two such desks 1, and supports a top board 5 X different from the top board 5 on the base 2 of each desk 1. I am letting. This top plate 5X is a cantilever type supported only by another support 4X different from the support 4 according to the present invention, and cannot be slid relative to the base 2.

  As shown in FIGS. 1 to 4 and the like, the base 2 has a substantially quadrangular prism shape that extends substantially linearly. Rail grooves 21 and 22 for guiding the movement of the support 4 are provided in a pair of upstanding surface portions 2A facing each other along the longitudinal direction in the base 2. In the present embodiment, a pair of rail grooves 21 and 22 extending along the longitudinal direction of the base 2 are formed on each of the standing surface portions 2A so as to be spaced apart from each other by a predetermined pitch in the height direction and parallel to each other. In the following description, the rail groove formed on the relatively upper side is referred to as “upper rail groove 21”, and the rail groove formed on the lower side is referred to as “lower rail groove 22”.

  A rail groove 23 for moving and guiding an optional member (not shown) is provided on the upper surface 2B of the base 2. In the present embodiment, a plurality of rail grooves 23 (five in the illustrated example) are formed on the upper surface portion 2B so as to be spaced apart from each other by a predetermined pitch in the short direction of the base 2 and to extend parallel to each other. The relative position of the option member relative to the base 2 can be changed by sliding the option member (not shown) along the rail groove 23. Optional members include desktop panels and task lights.

  Each of the rail grooves 21, 22, 23 is formed from one end of the base 2 to the other end. Further, end caps 2C are detachably attached to both ends of the base 2 (see FIG. 1; in the drawings other than FIG. 1 (FIG. 3, etc.), the base 2 with the end cap 2C removed is attached. Shown).

  As shown in FIG. 1, the base support 3 supports both ends of the base 2. The base support 3 has, for example, a prism shape or a square pipe shape having a depth dimension substantially the same as the short dimension of the base 2, and a plurality of desks 1 are arranged so that each base 2 is continuous along the longitudinal direction. In the office configuration system that is continuously provided, the first auxiliary base support 31 is integrated with the base support 3 positioned at both ends as viewed from the entire office configuration system by a suitable means among the plurality of base supports 3. As a result, the second auxiliary base support 32 is integrally assembled to the other base support 3 by an appropriate means to realize good self-supporting and stability of the entire office configuration system.

  As shown in FIGS. 2 and 5, the support 4 includes a support body 41 that supports the top plate 5, and a slide device 42 that is slidable along the rail grooves 21 and 22. is there. In the following description, the base 2 side of the support body 4 is the rear, and the anti-base 2 side is the front. Further, the xx line shown in FIG. 5 can substantially overlap the xx line shown in FIG. 1, and FIG. 2 which is a schematic diagram of a cross section taken along the line xx shown in FIG. It is also a schematic diagram of an xx line cross section shown.

  The support body 41 can support a predetermined region on one end portion side of the top plate 5 from below. The support body 41 according to the present embodiment includes a pair of opposed frames 41a that are substantially orthogonal to the longitudinal direction of the base 2 and opposed to each other in a state of being supported by the base 2, and the counter frame 2 side of each opposed frame 41a. And a single rear frame 41c for connecting the ends on the base 2 side of each opposing frame 41a via a base cover body 425 described later. Thus, the frames 41a, 41b, and 41c are integrally rigidly connected to each other by insertion, bolting, or welding using joint portions (not shown). The upper surfaces of these frames 41a, 41b, 41c are substantially flush. Further, the front intermediate frame 41d and the rear intermediate frame 41e are integrally rigidly connected between the opposing frames 41a that make a pair, so that the strength of the support body 41 itself and the support strength when receiving the load of the top plate 5 are made effective. It is increasing. Each of the frames 41a, 41b, 41c, 41d, and 41e is a substantially rectangular cylindrical rigid body.

  Details of the slide device 42 will be described later.

  As shown in FIG. 2 and FIG. 5, the top plate 5 has, for example, a substantially gourd shape in plan view (an elliptical shape with a central portion constricted) supported by the support body 4 so as to be horizontally rotatable. A comparatively large size is applied. The maximum longitudinal dimension of the top plate 5 is set to be substantially the same as or slightly smaller than the longitudinal dimension of the base 2. A turning mechanism 7 is provided between the top plate 5 and the support 4 (see FIG. 3).

  The turning mechanism 7 uses a so-called thrust bearing. In this embodiment, the top plate side bearing element 71 fixed to the top plate 5, the support side bearing element 72 fixed to the support 4, and these bearing elements The one provided with a turntable (not shown) interposed between 71 and 72 is applied. Then, the top plate 5 can be swung with respect to the support body 4 by using the rotating operation of the turntable. The support 4 is provided with a turning mechanism receiving portion 43 that supports the turning mechanism 7. Note that the top plate side bearing element 71 and the support body side bearing element 72 are respectively attached to the top plate 5 and the turning mechanism receiving portion 43 by bolts (not shown).

  The turning mechanism receiving portion 43 is bridged between the front intermediate frame 41d and the rear intermediate frame 41e of the support body 41, and has a flat turning mechanism receiving portion main body 431 and a turning mechanism receiving portion main body 431. A pair of hook pieces 432 raised from the front edge portion and the rear edge portion and bent in a direction in which the upper end portion can be placed on each upper surface portion of the front intermediate frame 41d and the rear intermediate frame 41e, and a turning mechanism receiving portion The main body 431 is provided with standing pieces 433 that are raised from both side edges. Each hook piece 432 is fixed with a bolt in a state where it is placed on each upper surface portion of the front intermediate frame 41d and the rear intermediate frame 41e. The turning mechanism receiving portion 43 also functions as a part of the support body 41 and supports the top plate 5 via the turning mechanism 7.

  The leg body 6 that supports the other end portion of the top plate 5 includes a leg main body 61 and a moving body 62 (a caster in the illustrated example) provided at the lower end of the leg main body 61. The leg 6 is provided with an adjuster function so that the level of the top 5 can be adjusted. Further, the leg body 6 is provided with a locking means (not shown) for locking the movement of the moving body 62, and the movement of the moving body 62 is locked using this locking means, whereby the top plate with respect to the support body 4 is secured. 5 can be restricted.

  Next, the slide device 42 of the support 4 will be described.

  As shown in FIGS. 3 to 5 and the like, the slide device 42 is held by the slider base 421 and the slider base 421, and is an opening-side standing which is a standing wall on the opening end side of the inner wall of the upper rail groove 21. An upper side rolling element 422 that can be in contact with the wall 21a, and a lower side rolling element that is held by the slider base 421 and that can be in contact with the rear side standing wall 22b that is the inner side wall of the lower side rail groove 22 that is the rear side standing wall. 423 and an auxiliary rolling element 424 that is held by the slider base 421 and can be brought into contact with the bottom wall 21 b of the inner wall of the upper rail groove 21. The upper side rolling element 422, the lower side rolling element 423, and the auxiliary rolling element 424 function as a “guided body” of the present invention that can slide while being guided by the rail grooves 21 and 22.

  The slider base 421 includes an upright piece 421a that can be opposed to the upright surface 2A of the base 2, and an upper piece 421b and a lower piece 421c that extend rearward (base 2 side) from the upper and lower edges of the upright piece 421a, respectively. It is equipped with. In this embodiment, the upright piece 421a, the upper piece 421b, and the lower piece 421c are integrally formed by bending a single steel plate. Further, a reinforcing body 421d for preventing the slider base 421 from being deformed is provided between the upper piece 421b and the lower piece 421c (see FIG. 4).

  Further, a base cover body 425 capable of covering the part (a part in the vicinity of both ends of the slider base 421) is provided in a part in the vicinity of both ends of the slider base 421. Each base cover body 425 can also cover the slide device 42 and thus the retaining body 426 that prevents the entire support body 4 from falling off in the direction perpendicular to the longitudinal direction of the rail grooves 21 and 22. The retaining body 426 is provided in the vicinity of both ends of the slider base 421, and can be inserted into the upper rail groove 21 and the lower rail groove 22, a first retaining section 426a (see FIG. 3), and a second retaining section 426b (see FIG. 3). 4) at the tip. Of the retaining body 426, the base cover body 425 covers almost the entire portion other than the first retaining portion 426 a and the second retaining portion 426 b.

  As shown in FIGS. 3 and 5, the upper rolling element 422 is provided so as to be able to roll in the vicinity of both ends of the upper piece 421 b of the slider base 421. Specifically, the upper rolling element receiver 422a is pivotally supported in the vicinity of both ends of the upper piece 421b so that the upper piece 421b is sandwiched between the upper and lower parts 421b, and both ends of each upper rolling element receiver 422a are pivotally supported. The upper rolling elements 422 are provided so as to roll around the vertical axis.

  As shown in FIGS. 3 and 4, the lower side rolling element 423 is provided in the vicinity of both ends of the lower piece 421 c of the slider base 421 so as to be able to roll. Specifically, the lower rolling element receiver 423a is pivotally supported at both ends of the lower piece 421c so that the lower piece 421c can be sandwiched between the upper and lower parts, and the lower rolling element receiver 423a is pivotally supported at both ends of the lower rolling element receiver 423a. Each of the lower rolling elements 423 is provided so as to be able to roll about a vertical axis.

  As shown in FIGS. 3 and 5, the auxiliary rolling element 424 is provided in the vicinity of both ends of the upper piece 421 b of the slider base 421 so as to roll around a horizontal axis.

  In the present embodiment, bearings are applied as the upper rolling element 422, the lower rolling element 423, and the auxiliary rolling element 424. These rolling elements 422, 423, and 424 are set so as to be in contact with the walls 21a, 22b, and 21b of the rail grooves 21 and 22 through the attachment plates provided in the rail grooves 21 and 22, respectively. Yes.

  Therefore, the support body 4 according to the present embodiment includes the brake bodies 44 that have tapered surfaces 441 and 442 and that can regulate the rolling operation of the rolling bodies 422, 423, and 424.

  As shown in FIGS. 4 to 6 (FIG. 6 is an enlarged view of the y region in FIG. 5), the brake body 44 is provided with tapered surfaces 441 and 442 that make a pair on the upper surface portion and the lower surface portion, and toward the tip portion. Thus, the height dimension is set to be gradually reduced. The brake body 44 has a belt-like shape extending along the longitudinal direction of the base 2, and in the present embodiment, the brake body 44 is molded from an elastic material (for example, synthetic rubber mainly composed of chloroprene). As shown in FIG. 4, the brake body 44 has a pressure contact position (44A) where the tapered surfaces 441 and 442 can be pressed against the lower rail groove 22 by a wedge action, and a tapered surface 441 and 442 as shown in FIG. It is movable between the non-pressure contact position (44B) that is not brought into pressure contact with the lower rail groove 22. In addition, the brake body 44 positioned at the press contact position (44A) presses the respective tapered surfaces 441 and 442 to the open end 22a of the lower rail groove 22 by a wedge action.

  And the support body 4 which concerns on this embodiment positions the brake body 44 in a press-contact position (44A), the movement control state (45A) which controls a slide movement with respect to the base 2, and the non-pressure-contact position (44B) Is provided with a switching mechanism 45 that can be switched between a movement allowable state (45B) that is positioned at the position and allows sliding movement with respect to the base 2.

  As shown in FIGS. 3 to 5 and the like, the switching mechanism 45 holds the brake body 44 in the longitudinal direction of the base 2 with respect to the support body 41 and the slide device 42 (slide direction of the support body 4). A brake body holding portion 451 that can be relatively moved in a direction substantially orthogonal to the operation portion, and an operation lever 452 that is an operation portion for performing an operation of moving the brake body holding portion 451.

  The brake body holding part 451 is a combination of a rear link 4511 relatively disposed on the base 2 side and a front link 4512 relatively disposed on the opposite base 2 side. The brake body 44 is held at the rear end (end on the base 2 side).

  As shown in FIG. 6 and the like, the rear link 4511 has a bottom surface portion 4511a, an attachment piece 4511b to which the rear end portion of the bottom surface portion 4511a can be bent upward, and a brake body 44 can be attached, and both sides of the bottom surface portion 4511a. It is provided with a pair of opposed upright pieces 4511c each rising from the edge and having its upper end extended forward. In the present embodiment, the bottom surface portion 4511a, the contact piece 4511b, and the opposed upright piece 4511c are integrally formed by bending a single steel plate. In addition, a bolt B1 inserted from below into a long hole 4511d extending in the front-rear direction formed in the bottom surface portion 4511a is screwed into a screw hole formed in the lower piece 421c of the slider base 421, whereby the rear link 4511 and the slider The base 421 is assembled with each other (see FIG. 5). The rear link 4511 is set to be able to move relative to the slide device 42 within the opening dimension of the long hole 4511d. Further, a first slide inducing portion is provided that can prevent the rear link 4511 and the slider base 421 from being in pressure contact with each other and can cause a smooth relative movement of the rear link 4511 with respect to the slider base 421. In the present embodiment, a resin rivet (not shown) inserted into the lower piece 421c of the slider base 421 is applied as the first slider elevating portion, and the substantially spherical head R1a of the resin rivet is connected to the lower piece 421c and the rear piece 421c. It is interposed between the bottom surface 4511a of the link 4511.

  The brake body holding portion 451 further includes a contact plate 4513 that can be brought into contact with the distal end portion of the brake body 44, and the brake body 44 is sandwiched between the contact piece 4511b of the rear link 4511 and the contact plate 4513. Then, the brake body 44 is integrally attached to the brake body holding portion 451 by screwing the bolt B2 inserted into the through-hole formed in each of the contact plate 4513 and the brake body 44 into the screw hole of the attachment piece 4511b. (See FIG. 4). A notch 421e for avoiding interference with the tip of the rear link 4511, the brake body 44, and the contact plate 4513 is formed in the central portion in the left-right width direction of the lower piece 421c of the slider base 421 ( (See FIG. 4).

  Further, the brake body holding portion 451 is integrally provided with a reinforcing body 4514 between the opposed upright pieces 4511c of the rear link 4511 (see FIGS. 3 and 4). The reinforcing body 4514 includes a main body piece 4514a disposed between the opposed upright pieces 4511c, and a first attached piece 4514b and a second attached piece 4514c that can be attached to the opposed upright piece 4511c. In the embodiment, the main body piece 4514a, the first attachment piece 4514b, and the second attachment piece 4514c are integrally formed by bending a single steel plate. Furthermore, an opening for wiring insertion is provided in the main body piece 4514a, and a resin window frame portion 4514d is attached to the opening (see FIG. 4). Note that the reinforcing body 4514 is omitted in FIG.

  On the other hand, the front link 4512 is suspended from the upper surface 4512a, both side edge portions on the rear end side of the upper surface 4512a, and can be connected to the upper end of the opposed upright piece 4511c of the rear link 4511. And a guided piece 4512c which is a guided part suspended from both side edge portions of the central portion of the portion 4512a. In the present embodiment, the upper surface portion 4512a, the connection piece 4512b, and the guided piece 4512c are integrally formed by bending a single steel plate. An opening 4512d for avoiding interference with the turning mechanism 7 and the turning mechanism receiving portion 43 is formed in the central portion of the upper surface portion 4512a (see FIG. 5). Further, a plate nut 4512e is fixed to each inward surface of each connection piece 4512b by welding or the like, and a bolt B3 inserted from the opposed upright piece 4511c side of the rear link 4511 is screwed to the plate nut 4512e, whereby the rear link 4511 and the front link 4512 are integrally assembled. The operation of the guided piece 4512c will be described later.

  Thus, the brake body holding portion 451 formed by integrally assembling the rear link 4511 and the front link 4512 has a relatively large structure as a whole, and such a brake body holding portion 451 is shown in FIGS. As shown in FIG. 8, a substantially linear movement between the first holding position (451A) relatively positioned on the base 2 side and the second holding position (451B) relatively positioned on the non-base 2 side. It will reciprocate along the trajectory. And the brake body 44 hold | maintained at the brake body holding | maintenance part 451 moves with the reciprocation of the brake body holding | maintenance part 451. FIG. Specifically, when the brake body holding portion 451 is positioned at the first holding position (451A), the brake body 44 is positioned at the pressure contact position (44A) (see FIGS. 4 to 6), and the brake body is held. When the part 451 is positioned at the second holding position (451B), the brake body 44 is positioned at the non-pressure contact position (44B) (see FIGS. 7 to 9).

  As shown in FIGS. 5 and 8, the operation lever 452 is provided in the vicinity of the front end portion of the brake body holding portion 451, and applies a predetermined operation force to the operation end 4521, thereby bringing the brake body 44 into the pressure contact position. It is movable between a lock position (452A) taken when positioned at (44A) and a non-lock position (452B) taken when the brake body 44 is positioned at the non-pressure contact position (44B).

  Each operation lever 452 has a base end portion 4522 which is a counter-operation end and a bolt B4 screwed into a nut body N1 provided at the center in the left-right width direction on the side opposite to the base 2 on the upper surface portion 4512a of the front link 4512 (see FIG. 3), and a bolt B5 inserted into a bent portion 4523 formed at a position separated from the base end portion 4522 by a predetermined distance is provided on the operation lever receiving portion 41f provided integrally with the front frame 41b of the support body 41. The nut body N2 is screwed (see FIG. 3), and the operation end 4521 is surrounded by the pair of opposed frames 41a and the rear frame 41c of the support body 41 outside the opposite frame 41a (in other words, the support body 41). (Position that deviates from the region to be removed) (see FIG. 5). Each operation lever 452 is provided with a stepped portion 4524 in the vicinity of the boundary portion between the base end portion 4522 and the bent portion 4523 so that the base end portions 4522 overlap each other in the thickness direction. Then, long holes 452a are formed in the base end portions 4522 of the respective operation levers 452, and a common bolt B4 inserted into these long holes 452a is screwed into a nut body N1 provided in the brake body holding portion 451. When an operating force is applied to one operating end 4521, each operating lever 452 rotates around a bolt B5 provided on the bent portion 4523, and the bolt B4 is guided to the elongated hole 452a as the brake body holding portion 451 moves forward and backward. It is set to move forward and backward.

  Each operation lever 452 of the present embodiment is provided with an operation force that is always pulled by the user to the operation end 4521, so that the bolt B <b> 5 inserted and fixed in the bent portion 4523 is fixed to the lock position (452 </ b> A). The common bolt B4 moves forward and backward along the long hole 452a of each operation lever 452, so that the operation end 4521 of any one of the operation levers 452 moves to the operation end 4521. On the other hand, when an operating force is applied, the other operating lever 452 is also in the unlocked position (in synchronization with the movement of the one operating lever 452 between the unlocked position (452B) and the locked position (452A)). 452B) and the locked position (452A). That is, the long hole 452a provided in each operation lever 452 and the common bolt B4 cooperate to synchronize the movement of each operation lever 452 between the unlocked position (452B) and the locked position (452A). It plays the role of “operation unit synchronization mechanism”. Note that the operation end 4521 is provided with a hook portion (not shown) that extends downward from other portions and can be hooked by the user's finger. In this embodiment, the hook portion is integrally formed with a resin operation end cover 452c that can cover the operation end 4521. Further, in order to avoid that the upper surface portion of the operation lever 452 is positioned above the upper surface portion of the support body 41, a concave step portion 41a1 for the operation lever 452 is provided in each opposing frame 41a. The operation lever 452 can move within the portion 41a1 (see FIGS. 5 and 8).

  The switching mechanism 45 including the brake body holding portion 451 and the operation lever 452 is interlocked with the movement of the operation lever 452 between the unlocked position (452B) and the locked position (452A), The brake body holding portion 451 holding the brake body 44 at the end is linearly moved along a direction substantially orthogonal to the longitudinal direction of the base 2 to position the brake body 44 at the non-pressure contact position (44B). A movement allowance state (45B) in which the slide movement of the support body 4 with respect to 2 is permitted, and a movement restriction state (45A) in which the brake body 44 is positioned at the press contact position (44A) and the slide movement of the support body 4 with respect to the base 2 is restricted. Can be switched between.

  Furthermore, the support body 4 according to the present embodiment includes guide means 46 for guiding the movement of the brake body holding portion 451 between the first holding position (451A) and the second holding position (451B). .

  As shown in FIG. 10 which is an enlarged view of the z region of FIGS. 5 and 5, the guide means 46 includes the guided piece 4512 c of the front link 4512, the front intermediate frame 41 d and the rear intermediate frame 41 e of the support body 41. And a guide rail 4611 spanned between them. The guided piece 4512c is movable between the front intermediate frame 41d and the rear intermediate frame 41e of the support body 41 as the brake body holding portion 451 moves forward and backward. The guide rail 461 has an upper piece 461a that can be placed on the upper surface of each frame 41d and the frame 41e in a state straddling the front intermediate frame 41d and the rear intermediate frame 41e, and one side of the upper piece 461a. A guide rail body 461b that is suspended from the edge and can face the outward surface of each guided piece 4512c is provided. In the present embodiment, the upper piece 461a and the guide rail body 461b are integrally formed by bending a single steel plate. When the brake body holding portion 451 is moved between the first holding position (451A) and the second holding position (451B), each guided piece 4512c is brought close to or attached to the corresponding guide rail body 461b. By guiding in the state, the movement of the brake body holding part 451 becomes stable. Furthermore, in the present embodiment, the guided piece 4512c and the guide rail 461 are prevented from being pressed against each other between the guided piece 4512c of the front link 4512 and the guide rail 461, and the guided rail is guided to the guide rail 461. A second slide inducing portion capable of inducing smooth relative movement of the piece 4512c is provided. In the present embodiment, a resin rivet R1 inserted into the guide rail main body 461b of the guide rail 461 is applied as the second slide inducing portion, and the substantially spherical head R1a of the resin rivet R1 is used as a guided piece 4512c. And the guide rail body 461b.

  Further, the support 4 according to the present embodiment includes auxiliary guide means 47 in order to complement the function of the guide means 46.

  As shown in FIG. 6, the auxiliary guide means 47 includes auxiliary guide rails 471 provided in association with the opposed upright pieces 4511 c of the rear link 4511, the upright pieces 421 a of the slider base 421, and the rear frame 41 c of the support body 41. It is equipped with. The auxiliary guide rail 471 is connected to the pair of auxiliary guide rail bodies 471a that can face the opposed upright pieces 4511c, and the pair of auxiliary guide rail bodies 471a, and is in contact with the upstanding pieces 421a of the slider base 421. And a pair of second attachment pieces 471c provided at the upper end of each auxiliary guide rail body 471a and attached in contact with the rear frame 41c of the support body 41, It is equipped with. In the present embodiment, the auxiliary guide rail body 471a, the first attachment piece 471b, and the second attachment piece 471c are integrally formed by bending a single steel plate. Then, when the brake body holding portion 451 is moved between the first holding position (451A) and the second holding position (451B), the opposing upright pieces 4511c are respectively close to or attached to the corresponding auxiliary guide rail bodies 471a. By guiding in the state of being made, the movement of the brake body holding part 451 becomes stable. Furthermore, in the present embodiment, the opposed upright pieces 4511c and the auxiliary guide rail main body 471a are prevented from being pressed against each other between the opposed upright pieces 4511c and the auxiliary guide rail main body 471a, and the auxiliary guide rail main body 471a is prevented from contacting with each other. A third slide raising portion that can cause a smooth relative movement of the opposed upright piece 4511c is provided. In the present embodiment, a resin rivet R2 inserted into the auxiliary guide rail main body 471a is applied as the third slide inducing portion, and a substantially partial spherical head R2a of the resin rivet R2 is connected to the opposed upright piece 4511c and the auxiliary guide. It is interposed between the rail body 471a.

  Of these guide means 46 and auxiliary guide means 47, the guide means 46 mainly functions to guide the movement of the front link 4512 of the brake body holding portion 451, and the auxiliary guide means 47 mainly serves as the rear link of the brake body holding portion 451. The function of guiding the movement of 4511 is exhibited.

  Further, the support body 4 according to the present embodiment has a spring 48 as an urging means for urging the brake body 44 toward the press contact position (44A) and the switching mechanism 45 from the movement restricted state (45A) to the movement permitted state ( 45B), there is provided a non-pressing position holding means 49 for holding the brake body 44 in the non-pressing position (44B) against the urging force of the spring 48.

  The spring 48 is provided between the brake body holding portion 451 that holds the brake body 44 and the slide device 42, and biases the brake body holding portion 451 toward the first holding position (451A), thereby 44 is urged toward the pressure contact position (44A). In the present embodiment, a coil spring 48 is used in which one end is hooked on the brake body holding portion 451 and the other end is hooked on the slider base 421. Specifically, a pair of springs 48 are used, and one end portion of each spring 48 is connected to a rising piece 4511e that rises upward from the front end portion of the bottom surface portion 4511a of the rear link 4511 of the brake body holding portion 451. I try to catch it. As shown in FIGS. 5 and 6, the rising piece 4511 e protrudes outward from the bottom surface portion 4511 a of the rear link 4511 and the opposed upstanding piece 4511 c, as shown in FIGS. 5 and 6. A first hooking hole 4511f on which one end of the spring 48 can be hooked is formed at both ends of the protrusion. On the other hand, the other end of the spring 48 is hooked in a second hooking hole 421f formed in a portion of the rising piece 421a of the slider base 421 that is opposed to both ends of the rising piece 4511e. The springs 48 that are hooked on the first hook hole 4511f and the second hook hole 421f, respectively, always urge the brake body holding part 451 toward the first holding position (451A). Accordingly, as shown in FIGS. 7 to 9, when the brake body holding portion 451 moves from the first holding position (451A) to the second holding position (451B), that is, the brake body 44 moves to the pressure contact position (44A). ) To the non-pressure contact position (44B), the spring 48 is in an extended state, and the elastic return force acts as a force that pulls (retracts) the brake body holding portion 451 and thus the brake body 44 toward the base 2 side. Then, the brake body 44 is urged toward the press contact position (44A). The spring 48 is disposed at a height position where it cannot interfere with the resin rivet R2.

  As shown in FIGS. 3 and 5, the non-pressure contact position holding means 49 is provided between the brake body holding portion 451 and the support body main body 41, and can be engaged with a plurality of different engagement target portions. A latch device 491 provided with a latch claw 491a is used. Specifically, the latch device 491 includes a housing 491b provided on a downward surface of the upper surface portion 4512a of the front link 4512 of the brake body holding portion 451 via a latch holding plate 491c, and the support body 41. Of these, a latch claw 491a is provided on the front intermediate frame 41d and can be inserted into the housing 491b. In this embodiment, as the latch device 491, a first engagement target portion and a second engagement target portion (not shown) that can be engaged with the latch claw 491a are provided in the housing 491b so as to be separated in the front-rear direction. In a state where the claw 491a is engaged with the first engagement target portion, by moving the relative distance between the housing 491b and the latch claw 491a, in other words, moving either one closer to the other, While the latch claw 491a is disengaged from the first engagement target portion and engaged with the second engagement target portion, the latch claw 491a is engaged with the second engagement target portion. The latch claw 491a is engaged with the second engagement object portion by moving the relative distance between the housing 491b and the latch claw 491a in a direction that shortens the relative distance between the housing 491b and the latch claw 491a. To engage the first engaging target portion to release the state, it is applied a so-called push-latch device. Note that a portion of the housing 491b that protrudes toward the latch claw 491a can project and retract according to the relative distance between the housing 491b and the latch claw 491a.

  Next, the usage method of this desk 1 is demonstrated paying attention to operation | movement and an effect | action of the support body 4. FIG.

  First, during normal use, the switching mechanism 45 is set in a movement restriction state (45A) in order to restrict the sliding movement of the support 4 with respect to the base 2. When the switching mechanism 45 is in the movement restricted state (45A), as shown in FIGS. 3 to 6, the brake body 44 presses the tapered surfaces 441 and 442 against the opening end 22a of the lower rail groove 22 by a wedge action. It is positioned at the pressed contact position (44A). As a result, the rolling operation of each of the rolling elements 422, 423, 424 is restricted, and the sliding movement of the support 4 with respect to the base 2 and consequently the sliding movement of the top plate 5 with respect to the base 2 is restricted. When the switching mechanism 45 is in the movement restricted state (45A), the brake body holding portion 451 is positioned at the first holding position (451A), and each operation lever 452 is positioned at the lock position (452A), and is not in the pressure contact position. The latch device 491 which is the holding means 49 is in a state where the latch claw 491a and the first engagement target portion are engaged with each other.

  On the other hand, when the relative position of the top plate 5 with respect to the base 2 is changed, it is necessary to switch the switching mechanism 45 from the movement restricted state (45A) to the movement permitted state (45B). In this case, the user hangs his / her finger on the operation end 4521 (actually, the hook portion of the operation end cover 452c) of one of the operation levers 452 in the lock position (452A). Then, apply the pulling force to the front (user side). Based on this operation force, each operation lever 452 is bent by the action of the operation portion synchronization mechanism using the long hole 452a formed in the base end portion 4522 and the common bolt B4 inserted into the long hole 452a. A brake body holding part 451 connected to the base end part 4522 of each operation lever 452 is rotated in synchronization with the bolt B5 inserted into the part 4523 from the lock position (452A) to the non-lock position (452B). The guided piece 4512c and the opposed upright piece 4511c are moved from the first holding position (451A) to the second holding position (451B) while being guided by the guide rail main body 461b and the auxiliary guide rail main body 471a, respectively. As a result, as shown in FIGS. 7 to 9, the brake body 44 held by the brake body holding portion 451 is moved from the pressure contact position (44 </ b> A) to the tapered surfaces 441 and 442 to the opening end portion 22 a of the lower rail groove 22. It moves to the non-pressure contact position (44B) that is not pressed. The brake body 44, which has moved from the pressure contact position (44A) to the non-pressure contact position (44B) and released from the pressure contact state with the open end 22a of the rail groove 22, is elastically restored to its original shape before elastic deformation. Return. Further, the brake body holding portion 451 rises due to the movement of the brake body holding portion 451 from the first holding position (451A) to the second holding position (451B), that is, the movement of the brake body holding portion 451 to the side opposite to the base 2. The spring 48 interposed between the piece 4511e and the standing piece 421a of the slider base 421 is elastically deformed and extended. The brake body holding portion 451 is urged from the second holding position (451B) toward the first holding position (451A) by the elastic restoring force of the spring 48, but the latch device 491 of the non-pressing position holding means 49 is used. Thus, the brake body holding portion 451 is held at the second holding position (451B). Specifically, the brake body holding portion 451 is moved by moving the brake body holding portion 451 from the first holding position (451A) to the second holding position (451B), that is, moving the brake body holding portion 451 to the side opposite to the base 2 side. The housing 491b of the latch device 491 provided in 451 moves in a direction approaching the latch claw 491a, the engagement state between the latch claw 491a and the first engagement target portion is released, and the latch claw 491a is the second engagement target. Engage with the part. As a result, the brake body holding portion 451 is held at the second holding position (451B), and the brake body 44 is held at the non-pressure contact position (44B).

  In this way, by switching the switching mechanism 45 from the movement restricted state (45A) to the movement permitted state (45B), the rolling operation of the rolling elements 232, 233, and 236 contacted to the rail grooves 21 and 22 is permitted. Thus, it becomes possible to slide the top plate 5 together with the support 4 with respect to the base 2.

  In the present embodiment, since the rail grooves 21 and 22 are formed from one end to the other end of the base 2, the switching mechanism 45 slides the support body 4 in the movement-permitted state (45B). It is also possible to move the support 4 to another adjacent base 2 or to remove the support 4 from the base 2. In other words, the support 4 once detached from the base 2 can be attached to the base 2 again using the rail grooves 21 and 22 by setting the switching mechanism 45 to the movement-permitted state (45B). That is.

  On the other hand, when the switching mechanism 45 is switched from the movement-permitted state (45B) to the movement-restricted state (45A) and the sliding movement of the support 4 and the top plate 5 with respect to the base 2 is restricted, the user can 452B) of the operation levers 452, and an operation end 4521 of one of the operation levers 452 (actually, a hooking portion of the operation end cover 452c), and pulling it to the front (user side). Giving power. Based on this operating force, the housing 491b of the latch device 491 moves in a direction closer to the latch claw 491a, the engagement state between the latch claw 491a and the second engagement target portion is released, and the spring 48 is elastically restored. The brake body holding portion 451 causes the guide piece 4512c and the opposed upright piece 4511c to be guided by the guide rail body 461b and the auxiliary guide rail body 471a, respectively, from the second holding position (451B) to the first holding position (451B). 451A). As the brake body holding portion 451 moves from the second holding position (451B) to the first holding position (451A), the brake body 44 moves from the non-pressing position (44B) to the pressing position (44A). In other words, as the brake body holding portion 451 moves from the second holding position (451B) to the first holding position (451A), the tapered surfaces 441 and 442 of the brake body 44 become the open end 22a of the lower rail groove 22. While being elastically deformed, it is pressed without a gap by a wedge action. Thereby, the sliding movement of the support body 4 with respect to the base 2 and by extension, the top plate 5 is regulated. As the brake body holding portion 451 moves from the second holding position (451B) to the first holding position (451A), each operation lever 452 moves to the operation portion synchronization mechanism (the long hole 452a and the bolt B4). As a result, the bolt B5 provided in each bent portion 4523 is rotated in synchronism from the unlocked position (452B) to the locked position (452A) with the bolt B5 as an axis. Further, the movement of the brake body holding part 451 from the second holding position (451B) to the first holding position (451A), that is, the movement of the brake body holding part 451 to the base 2 side causes the second engagement target part to move to the second engagement target part. The latch claw 491a released from the engagement state is again engaged with the first engagement target portion.

  In this way, by switching the switching mechanism 45 from the movement-permitted state (45B) to the movement-restricted state (45A), it is possible to restrict the sliding movement of the support body 4 and thus the top plate 5 relative to the base 2.

  In addition, although not shown in figure, the support body 4 which concerns on this embodiment can attach an outlet unit, and can also attach the cover body which coat | covers a lower surface side.

  As described above, the support body 4 according to the present embodiment includes the rolling elements 422, 423, and 424 that can roll while being guided by the rail grooves 21 and 22 that are continuously provided along the extending direction of the base 2, and the taper. The tapered surfaces 441 and 442, the pressure contact position (44 </ b> A) in which the taper surfaces 441 and 442 are press-fitted into the opening end 22 a of the rail groove 22 by the wedge action, and the opening end of the rail groove 22. The brake body 44 is movable between the non-pressure contact position (44B) where the pressure contact state of the tapered surfaces 441 and 442 with respect to 22a is released, and the brake body 44 is positioned at the non-pressure contact position (44B), and the rolling elements 422, 423, By allowing the 424 to roll, the movement allowing state (45B) allowing the sliding movement with respect to the base 2 and the brake body 44 are positioned at the pressure contact position (44A). The base 2 is provided with a switching mechanism 45 that is switchable between a movement restricting state (45A) that restricts sliding movement relative to the base 2 by restricting rolling of the moving bodies 422, 423, and 424. When the relative movement of the top plate 5 with respect to the rail is restricted, the switching mechanism 45 is switched from the movement-permitted state (45B) to the movement-restricted state (45A), and the tapered surfaces 441 and 442 of the brake body 44 are moved into the rail groove by the wedge action. Compared with a mode in which the front end surface of the brake body 44 is simply abutted against the outer surface of the rail groove 22 or a surface in the rail groove 22 or a mode in which a brake body having no tapered surface is packed in the rail groove 22 Thus, the friction generated at the contact portion between the brake body 44 and the rail groove 22 due to the wedge action of the tapered surfaces 441 and 442 is significantly increased. By rubbing, even when the rolling elements 422, 423, 424 are in contact with the walls in the rail grooves 21, 22, the rolling operation of the rolling elements 422, 423, 424 is restricted, and the base 2 On the other hand, the support 4 can be firmly and securely fixed, and the relative movement of the top plate 5 with respect to the base 2 can be restricted.

  On the other hand, when changing the relative position of the top plate 5 with respect to the base 2, the switching mechanism 45 is switched from the movement restricted state (45A) to the movement allowed state (45B) and the brake body 44 is moved to the non-pressure contact position (44B). As a result, the braking function of the brake body 44 cannot be exerted, and the rolling elements 422, 423, 424 can be rolled along the rail groove 22, and the relative position of the support body 4 with respect to the base 2, and consequently The relative position of the top plate 5 with respect to the base 2 can be changed easily and smoothly. In addition, since the support 4 can be slid while being guided by the rail grooves 21 and 22 continuously provided along the extending direction of the base 2, the relative position of the top plate 5 with respect to the base 2 can be changed steplessly. The relative positions of the support 4 and the top plate 5 with respect to the base 2 can be finely adjusted, and the utility is excellent.

  Further, when the brake body having no tapered surface is packed in the rail groove, the entire brake body packed in the rail groove when the support body 4 is moved relative to the base 2 is completely removed from the rail groove. Although the support body 4 according to the present invention uses the brake body 44 having the tapered surfaces 441 and 442, the taper surfaces 441 and 442 are pressed against the rail groove 22 by the wedge action. When the taper surfaces 441 and 442 are moved from the pressed contact position (44A) to the non-pressure contact position (44B) where the taper surfaces 441 and 442 are not pressed against the rail groove 22, the brake body 44 is moved to a position where the wedge action of the taper surfaces 441 and 442 is released. The brake body 44 does not need to be moved to a position where the entire brake body 44 is completely retracted from the rail groove 22. It can be set as short as possible the distance traveled between the pressing position and (44A) and a non-pressing position (44B) of the. This contributes to a reduction in the movable allowance of the brake body 44 and an improvement in the operational stability of the brake body 44.

  In particular, since the brake body 44 is elastically deformable, when the brake body 44 is moved from the non-pressure contact position (44B) to the pressure contact position (44A), the taper surfaces 441 and 442 are more reliably railed by elastic deformation. The groove 22 can be press-contacted, and the braking function of the brake body 44 is improved.

  Moreover, when the brake body 44 has tapered surfaces 441 and 442 on the outer peripheral surface that can be opposed, specifically, the upper surface portion and the lower surface portion of the brake body 44, respectively, and is positioned at the pressure contact position (44A). Since each of the tapered surfaces 441 and 442 can be pressed against the opening end 22a of the rail groove 22 by a wedge action, the braking function of the brake body 44 is further improved.

  Furthermore, since the brake body 44 reciprocates along a linear movement locus between the pressure contact position (44A) and the non-pressure contact position (44B), the operation of the brake body 44 becomes simple, This contributes to the operational stability of the brake body 44.

  Since the moving direction from the pressure contact position (44A) to the non-pressure contact position (44B) of the brake body 44 is the direction of retreating from the rail groove 22, the brake body 44 positioned at the non-pressure contact position (44B) becomes the rail groove 22. It is possible to prevent the rolling elements 422, 423, and 424 from rolling smoothly.

  In addition, since the brake body 44 has a substantially strip-like shape elongated along the extending direction of the rail groove 22, the brake body 44 positioned at the pressure contact position (44A) and the opening end portion 22a of the rail groove 22 are provided. A contact area can be earned effectively, and the braking function of the brake body 44 can be further enhanced.

  Further, when the switching mechanism 45 is switched from the movement restricting state (45A) to the movement allowable state (45B), the spring 48 is used as a biasing means for biasing the brake body 44 toward the pressure contact position (44A). And a non-pressing position holding means 49 for holding the brake body 44 in the non-pressing position (44B) against the urging force of the switching mechanism 45, the movement of the switching mechanism 45 from the movement allowable state (45B) is restricted. When the state is switched to the state (45A), the brake body 44 can be reliably moved from the non-pressure contact position (44B) to the pressure contact position (44A) by the spring 48, and the switching mechanism 45 is moved to the movement restricted state (45A). Is switched to the movement allowable state (45B), the brake body 44 is held at the non-pressure contact position (44B) against the urging force of the spring 48 by the non-pressure contact position holding means 49. The Rukoto rolling elements 422, 423 and 424 is to roll smoothly, the sliding movement of the support 4 and the top plate 5 can be carried out easily and properly with respect to the base 2.

  In particular, the non-pressure-contact position holding means 49 includes a latch device 491 including a single latch claw 491a that can be engaged with a plurality of different engagement target parts (first engagement target part and second engagement target part). Since it is used, the non-pressure contact position holding means 49 can be realized with a simple structure.

  Furthermore, the switching mechanism 45 holds the brake body 44, and the brake body holding part 451 is movable along a linear movement locus between the first holding position (451A) and the second holding position (451B). And an operation lever 452 that is an operation unit for performing an operation of moving the brake body holding portion 451 between the first holding position (451A) and the second holding position (451B). By positioning the brake body 44 at the first holding position (451A), the brake body 44 is in the movement restricted state (45A) positioned at the pressure contact position (44A), and by positioning the brake body holding portion 451 at the second holding position (451B) 44 is in a movement-permitted state (45B) in which 44 is positioned at the non-pressure contact position (44B). The brake body holding portion 451 is moved between the first holding position (451A) and the second holding position (451B), and the brake body 44 is linked to the pressure contact position (44A) and the non-pressure contact position (44B). Between the movement restriction state (45A) and the movement permissible state (45B) of the switching mechanism 45 accurately. Can do.

  In addition, an operation performed on the operation lever 452 when the brake body holding portion 451 is moved from the first holding position (451A) to the second holding position (451B), and the brake body holding portion 451 is moved to the second holding position ( Since the operation performed on the operation lever 452 is the same when moving from 451B) to the first holding position (451A), the operability is excellent.

  In addition, the operation lever 452 applies a predetermined operation force to the operation end 4521, so that the lock position (452A) positioned when the brake body holding portion 451 is in the first holding position (451A), and the brake The body holding part 451 is movable between the non-locking position (452B) positioned when the body holding part 451 is in the second holding position (451B), and the operation lever 452 is separated from the operation end 4521 by a predetermined distance from each other. It is provided as a pair so as to be positioned at a position, and is provided with an operation portion synchronization mechanism that synchronizes the movement of each operation lever 452 between the unlocked position (452B) and the locked position (452A). Even in the case where the relative position of the user can be various, the user can operate the nearest operation lever 45 of the pair of left and right operation levers 452. The brake body holding portion 451 can be moved between the first holding position (451A) and the second holding position (451B) by applying a predetermined operating force to the operating end 4521 of the operation end 4521. In addition to being excellent, the operation lever 452 other than the operation lever 452 to which the user directly applied the operation force by the operation unit synchronization mechanism is also different from the operation lever 452 to which the user directly applied the operation force. Since it moves synchronously between the locked position (452A) and the unlocked position (452B), it is operated when moving the brake body holding part 451 from the first holding position (451A) to the second holding position (451B). An operation lever 452 for applying force and an operation for applying an operating force when moving the brake body holding portion 451 from the second holding position (451B) to the first holding position (451A). Even when the bar 452 is different, the brake body holding portion 451 can be reliably moved between the first holding position (451A) and the second holding position (451B) based on each operation force. it can.

  In particular, the operation unit synchronization mechanism is configured using a long hole 452a provided in each operation lever 452 and a single bolt B4 inserted into each long hole 452a and screwed into the brake body holding unit 451. Therefore, it contributes to simplification of the structure.

  Further, since the brake body holding portion 451 is provided with the guide means 46 for guiding the movement between the first holding position (451A) and the second holding position (451B), the guide means 46 is used. By doing so, the movement of the brake body holding part 451 becomes stable. In particular, even when a mode in which the brake body holding portion 451 is relatively large is employed, the movement of the brake body holding portion 451 can be prevented from becoming unstable by using the guide means 46.

  Further, the guide means 46 includes a guide rail 461 extending between different frames constituting the support body 41, specifically between the front intermediate frame 41d and the rear intermediate frame 41e, and a brake body holding portion 451. A guide piece 4512c that can face the guide rail 461, and the guide piece 4512c is moved along the guide rail 461 in the state of being close to or in contact with the guide rail 461, whereby the first of the brake body holding portions 451 is provided. Since the guide between the holding position (451A) and the second holding position (451B) is guided, the guide means 46 can be realized with a simple structure, and the guide rail 461 of the guide means 46 is provided with a frame structure. The guide rail 461 itself is bridged between different frames of the support body 41, Bearing member also functions as a reinforcing portion of the body 41 itself.

  The present invention is not limited to the embodiment described in detail above.

  For example, in the above-described embodiment, the movement direction from the pressure contact position (44X) to the non-pressure contact position (44B) of the brake body 44 is exemplified as a direction in which the brake body 44 is retracted from the rail groove X22, but as illustrated in FIG. The moving direction of the brake body X44 from the pressure contact position (X44A) to the non-pressure contact position (X44B) may be a direction toward the depth of the rail groove X2. In this case, it is necessary to set the inclination direction of the taper surfaces X441 and X442 opposite to the inclination direction of the taper surfaces 441 and 442 of the brake body 44 shown in the embodiment. The brake body X44 in the non-pressure contact position (X44B) is positioned in the rail groove X2, so that the tapered surfaces X441 and X442 are not pressed against the opening end portion X2a of the rail groove X2. Then, by moving from the non-pressure contact position (X44B) to the pressure contact position (X44A), the tapered surfaces X441 and X442 are pressed against the opening end portion X2a of the rail groove X2 by the wedge action, and the braking function is effectively exhibited.

  Moreover, the brake body should just have a taper surface in at least one surface, and as shown in FIG. 12, you may apply the brake body Y44 which has the single taper surface Y441. Even in such a brake body Y44, by moving from the non-pressure contact position (Y44B) to the pressure contact position (Y44A), the single tapered surface Y441 is pressed against the opening end X2a of the rail groove X2 by the wedge action. Effectively demonstrates the braking function.

  The brake body may not have a tapered surface. In this case, for example, an arcuate portion or a sawtooth portion is formed in the brake body, and these portions are brought into pressure contact with the rail groove, thereby exhibiting a good braking function.

  Furthermore, in the said embodiment, although the aspect in which the support body was provided with the single brake body was illustrated, not only this but the support body may be the aspect provided with the some brake body. When the support body is provided with a plurality of brake bodies, a mode in which a plurality of brake bodies positioned at the pressure contact position are all in pressure contact with the same rail groove, or a plurality of brake bodies positioned at the pressure contact position are in different rail grooves. Any of these modes may be used.

  Further, a brake body having a substantially conical shape may be applied. In this case, the brake body should just have a taper surface in the whole outer peripheral surface or a part of outer peripheral surface.

  The brake body may not be elastically deformable. Furthermore, the brake body may have a block shape instead of a belt shape.

  Further, the brake body may reciprocate along a curved movement locus between the pressure contact position and the non-pressure contact position. As a specific example, a mode in which a rotatable link is applied as the brake body holding portion and the brake body is held on the rotation free end side of the link can be mentioned.

  As the urging means, a spring other than the coil spring or rubber may be applied. The urging means may urge the brake body itself directly toward the press contact position. In this case, it is preferable to provide the biasing means between the brake body and the slide device or between the brake body and the support body. The support may be provided with a single urging means, or may be provided with three or more urging means.

  Further, the non-pressure contact position holding means may use a device or mechanism other than the push latch device. As an example, one using magnetic attachment between magnets can be cited. The non-pressing position holding means may hold the brake body directly at the non-pressing position. In this case, it is desirable to provide the non-pressure contact position holding means between the brake body and the slide device or between the brake body and the support body.

  The switching mechanism may be provided with an operation unit that is directly provided on the brake body and performs an operation of moving the brake body between the pressure contact position and the non-pressure contact position.

  Further, the switching mechanism may be provided with a single operation unit, or may be provided with three or more operation units.

  When the switching mechanism is provided with a plurality of operation units, the operation unit synchronization mechanism that synchronizes the movement between the unlocked position and the lock position of each operation unit is provided by a link mechanism that connects the operation units to each other. It may be configured.

  Further, an operation performed on the operation unit when the brake body holding unit is moved from the first holding position to the second holding position, and an operation performed when the brake body holding unit is moved from the second holding position to the first holding position. The operations performed on the units may be different from each other.

  As guide means for guiding the movement of the brake body holding portion between the first holding position and the second holding position, a convex portion or a concave portion provided in a part of the brake body holding portion is used as a support body and / or You may apply the aspect which guides the movement between the 1st holding position and the 2nd holding position of a brake body holding part in the state engaged with the recessed part or convex part provided in a part of slide apparatus.

  Moreover, you may employ | adopt the aspect in which a single rolling element can be attached to one rail groove, or the aspect in which several rolling elements can be attached to the inner wall of one rail groove.

  The base may have one or three or more rail grooves. Further, a base that extends in a curved shape (circular curved shape or elliptical curved shape) or a base that extends while meandering may be applied.

  As the rolling element, a simple roller may be employed instead of or in combination with the bearing.

  Furthermore, a slider that can slide while being in contact with the rail groove may be applied as a guided body that can slide while being guided by the rail groove.

  On the other hand, in the case where a part of the top plate is supported by the legs, a leg that is not provided with a moving body at the lower end may be applied. In this case, in order to move the top plate, the top plate may be moved up to a position where the lower end of the leg floats from the floor surface. Further, as long as the top plate that is a support object supported by the support is relatively small, it may be a cantilever type (without legs) supported only by the support. The top plate may be unable to turn horizontally. Also, as a top plate, the shape in plan view is circular, oval, polygonal, L-shaped, T-shaped, rectangular (including square), or one end side is polygonal and the other end side is a partial circle Various shapes such as an arc shape may be applied. Further, as the support object, a partition, a display, or the like may be adopted instead of the top plate.

  Moreover, as a furniture with a top plate provided with the support body which concerns on this invention, and a top plate, the table which can be used in dining etc. other than the desk shown in the said embodiment is mentioned.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

1 is an overall schematic view of a desk provided with a support according to an embodiment of the present invention. The figure which abbreviate | omits and partially shows the xx sectional view in FIG. The principal part enlarged view of FIG. The principal part enlarged view of FIG. The top view which abbreviate | omits and shows a desk provided with the support body which concerns on the same embodiment. FIG. 6 is an enlarged view of a region y in FIG. 5. The figure which shows the state which positioned the brake body in the non-pressure-contact position in the embodiment corresponding to FIG. The figure which shows the state which positioned the brake body in the non-pressure-contact position in the embodiment corresponding to FIG. The figure which shows the state which positioned the brake body in the non-pressure-contact position in the embodiment corresponding to FIG. The z area | region enlarged view of FIG. The figure which shows typically the modification of the brake body in the embodiment. The figure which shows the other modification of the brake body in the same embodiment typically.

Explanation of symbols

1 ... Furniture with a top board (desk)
2 ... Base 21, 22 ... Rail groove (upper rail groove, lower rail groove)
4 ... support bodies 422, 423, 424 ... guided bodies (upper rolling elements, lower rolling elements, auxiliary rolling elements)
441, 442 ... Tapered surface 44 ... Brake body 45 ... Switching mechanism 451 ... Brake body holding part 4512c ... Guided part (guided piece)
452 ... Operation unit (operation lever)
46 ... Guide means 461 ... Guide rail 48 ... Biasing means (spring)
49 ... Non-pressure contact position holding means 491 ... Latch device 491a ... Latch claw 5 ... Supported object (top plate)

Claims (14)

A support body that is slidably supported by a base extending in a predetermined direction and supports a support object such as a top plate,
A guided body capable of sliding while being guided by a rail groove provided along the extending direction of the base;
A brake body movable between a pressure contact position capable of being pressed against the rail groove and a non-pressure contact position not pressed against the rail groove;
Switching between a movement-permitted state in which the brake body is positioned at the non-contact position and the slide movement with respect to the base is allowed, and a movement restriction state in which the brake body is positioned at the pressure-contact position and the slide movement with respect to the base is restricted. The support body characterized by comprising the switching mechanism which can be. The support body according to claim 1, wherein the brake body has a tapered surface, and when the brake body is positioned at the pressure contact position, the taper surface can be pressure-contacted with the rail groove by a wedge action. The support body according to claim 1, wherein the brake body is elastically deformable. The brake body has a tapered surface at each of the outer peripheral surfaces that can be opposed to each other, and each tapered surface can be pressed against the opening end of the rail groove by a wedge action when positioned at the pressing position. The support according to claim 1, 2 or 3. The support body according to claim 1, 2, 3, or 4, wherein the brake body reciprocates along a linear movement locus between the pressure contact position and the non-pressure contact position. The support body according to claim 1, 2, 3, 4, or 5, wherein a moving direction of the brake body from the pressure contact position to the non-pressure contact position is a direction of retreating from the rail groove. Urging means for urging the brake body toward the pressure contact position;
Non-pressing position holding means for holding the brake body in a non-pressing position against the urging force of the urging means when the switching mechanism is switched from the movement restricting state to the movement permitting state. The support according to claim 1, 2, 3, 4, 5 or 6. The support according to claim 7, wherein the non-pressing position holding means uses a latch device including a single latch claw that can be engaged with a plurality of different engagement target portions. The switching mechanism is
A brake body holding portion movable between the first holding position and the second holding position in a state where the brake body is held;
An operation unit for performing an operation of moving the brake body holding unit between the first holding position and the second holding position;
By positioning the brake body holding portion at the first holding position, the movement body is in the movement restricted state where the brake body is positioned at the pressure contact position, and by positioning the brake body holding portion at the second holding position, the brake body is The support according to claim 1, 2, 3, 4, 5, 6, 7 or 8, which is in the movement-permitted state positioned at the non-pressure contact position. An operation performed on the operation unit when the brake body holding unit is moved from the first holding position to the second holding position, and the brake body holding unit is moved from the second holding position to the first holding position. The support body according to claim 9, wherein the operation performed on the operation unit is the same. The operation unit applies a predetermined operation force to the operation end, so that the brake body holding unit is positioned when the brake body holding unit is in the first holding position, and the brake body holding unit is the second It is movable between the unlocked position that is positioned when in the holding position,
A plurality of the operation units are provided so that the operation ends are positioned at positions separated from each other by a predetermined distance, and an operation unit synchronization mechanism that synchronizes the movement of each operation unit between the unlocked position and the lock position is provided. The support according to claim 9 or 10. The support according to claim 9, 10 or 11, further comprising guide means for guiding movement of the brake body holding portion between the first holding position and the second holding position. A frame structure including a support body that supports the object to be supported, the support body being assembled with a plurality of frames;
The guide means includes a guide rail that spans between different frames in the support body, and a guided portion that can face the guide rail in the brake body holding portion, and the guided portion is The movement between the first holding position and the second holding position of the brake body holding portion is guided by moving along the guide rail in a state of being close to or attached to the guide rail. The support described. A base having a rail groove provided continuously along the extending direction;
The support according to any one of claims 1 to 13, which is supported by the base so as to be slidable using the rail groove,
A furniture with a top plate, comprising: a top plate supported by the support.

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