JP4337701B2 - Latch device - Google Patents

Description

  The present invention relates to a latch device capable of suitably stopping a moving body slidably supported by a structure at a desired position.

  2. Description of the Related Art Conventionally, furniture with a top board on which a drawer or a top board slides has been known as a structure in which a movable body is slidably supported.

  As shown in Patent Document 1, a latch device used for this kind of furniture with a top plate is provided with a latch claw on one of a structure or a moving body and is engaged with a portion where the other latch claw should be engaged. Holes and engagement recesses are formed, and the latch claw is selectively engaged with the engagement holes and engagement recesses so that the top plate is locked at a predetermined slide position with respect to the structure. ing.

The latch release lever is mounted around the horizontal axis on the top plate or the lower surface on the front edge side of the drawer, and the rotation movement is transmitted to the latch claw via a transmission member arranged vertically and horizontally, thereby the latch claw Can be released.
JP-A-9-256712

  However, in such a case, since the operating margin of the latch release lever is large and the transmission member and the latch member are arranged three-dimensionally vertically and horizontally, for example, a top plate that is a structure in furniture with a top plate A method of use such as application to a slight gap between a support and a top plate as a moving body cannot be adopted at all.

  The present invention has been made paying attention to such inconveniences, and is capable of functioning effectively by inserting a slight gap between the structure and the moving body if there is any. It is an object to provide a useful latch device.

  In order to achieve this object, the present invention takes the following measures.

That is, the latch device according to the present invention has an upper and lower thickness between a structure having an intermediate horizontal member for connecting the left and right legs and a movable body supported on the structure so as to be slidable horizontally. A latch housing is interposed in a gap existing in the direction , and the latch housing protrudes in the thickness direction from the thickness only when the movable body is accommodated within the thickness of the latch housing and is engaged with the intermediate horizontal member in the structure. A latch member, a latch release lever that is accommodated within the thickness of the latch housing and can be operated by horizontally sliding or turning within the thickness, and the latch release is accommodated within the thickness of the latch housing. And a transmission member for transmitting the lever operating force of the lever to the latch member. .

  In this way, since the latch device can be configured simply by inserting the latch housing into the narrow gap between the structure and the moving body, it can be easily adopted with only a small installation space, and various types having the moving body. The present invention can be suitably applied to other furniture.

  When the latch housing has a thin plate shape, it is desirable that at least the latch member is accommodated in a through hole provided in the thickness direction of the latch housing.

As a preferred embodiment of the present invention, as described above, a moving body slides in a horizontal plane and a latch release lever slides or turns in a horizontal plane.

In order to eliminate the need for separate processing or the like on the structure, the latch housing is fixed to the moving body, and the latch member is engaged with the outer surface of the intermediate horizontal member in the structure to lock the moving body. It is desirable to be.

  Since the present invention has the above-described configuration, it provides a novel and useful latch device that can function effectively by inserting a small gap between the structure and the moving body. It becomes possible.

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

  The furniture with a top plate to which the latch device of this embodiment is applied, as shown in FIGS. 1 to 3, the top plate 2 that is a moving body and the drawer 3 are independent from each other on the top plate support 1 that is a structure. Then, it is supported so that it can slide.

  More specifically, as shown in FIGS. 4 and 5, the top plate support 1 connects the left and right legs 1a, 1a with a rear horizontal member 11 and an intermediate horizontal member 12, and a front horizontal member. The leg portion 1a has a gate shape in which a pair of support pillars 13 and 13 are connected by a side frame member 14. The rear horizontal member 11 and the side horizontal member 14 have a frame member F1 having a horizontal groove f that continuously opens inward along the longitudinal direction, and the intermediate horizontal member 12 continues to both sides along the longitudinal direction. A frame member F2 having an open horizontal groove f is used. As shown in FIG. 7 and the like, the groove width fx of the horizontal groove f is slightly narrower than the vertical inner dimension FX of the hollow portion formed inside the frame members F1 and F2, and A nut member 8 (see FIG. 18), which will be described later, can be locked on the inner surface.

  The top plate 2 is a thin plate having a thickness dimension of about 10 mm, and two movable rollers 20 as movers are arranged in a horizontal groove f continuously opened inside the side frame member 14 as shown in FIG. The first movable bracket 21 and the second movable bracket 22 are attached to the support shaft of the movable roller 20, and the intermediate portion and the rear edge portion of the top plate 2 are mounted on the top plate mounting surface formed above these movable brackets 21 and 22. Is fastened. Both the movable brackets 21 and 22 hold the horizontal state of the top plate mounting surface by inserting convex portions 21a and 22a provided on a part thereof between the upper and lower edges of the horizontal groove f. As shown in FIGS. 1 and 8, the top plate 2 is slid forward to open the back region 1B of the top plate support 1 upward as shown in FIGS. It is possible to move between a rear slide position 2B (normal use position) that slides backward to close the back area 1B. At that time, the lower surface of the front edge side is supported by the first fixed roller 23 which is a front edge side support provided on the side frame member 14, and the front slide position 2F shown in FIG. 7 and the rear slide shown in FIG. The lower surface on the front edge side of the top plate 2 is backed up between the position 2B. Further, the top plate 2 is attached to a second fixed roller 24, which is an intermediate support body provided with the lower surface of the central portion on the intermediate horizontal member 12, as shown in FIG. 4, in order to prevent bending of the central portion in the width direction. The lower surface of the center part of the top plate 2 is backed up between the front slide position 2F shown in FIG. 9 and the rear slide position 2B shown in FIG. 10 to prevent its bending.

  Accordingly, on the top plate 2, a first latch member 41 for locking to the front slide position 2F shown in FIG. 12 and a second latch member 42 for locking to the rear slide position 2B shown in FIG. And a third latch member 43 for locking at the intermediate slide position 2M shown in FIG. 13 constitutes the latch device of the present invention, and the top plate 2 is at the front slide position 2F and the rear slide position 2B. 7 and 8, the engagement structures 51 and 52 for restricting the vertical movement of the front edge side of the top plate 2 are employed, and the top plate 2 is at the front slide position 2F and the rear slide position 2B. In the state shown in FIG. 10, there are provided restricting portions 61 and 62 for restricting the vertical movement on the rear edge side of the top plate 2.

  The latch members 41, 42, 43 are provided at three locations along the depth direction of the top plate 2, and the latch members 41, 42, 43 are forwarded and returned to the outer surface of the intermediate horizontal member 12 at a predetermined movement position. The top plate 2 is brought into contact with a predetermined movement position.

  As shown in FIGS. 11 to 17, these latch members 41, 42, and 43 are in the form of a balance attached around the support shaft m, and the intermediate horizontal member 12 has a first contact perpendicular to the moving direction. In relation to forming a substantially square pipe shape having an upright surface 12a as a contact surface and an upper surface 12b as a second abutting surface parallel to the moving direction, the upright surface in a normal posture elastically biased by a spring 44c. The vertical surface 4a that can face the surface 12a and the downward surface 4b that can face the upper surface 12b, and from the intermediate height of the vertical surface 12a of the intermediate horizontal member 12 below the vertical surface 4a than the vertical surface 12a. An inclined surface 4c that is inclined to a slightly higher position is provided. For example, when the top plate 2 is slid forward, the latch member 41 moves over the upper surface 12b of the intermediate horizontal member 12 while performing the balance operation around the support shaft m along the inclined surface 4c. 12 (a), the latch members 41, 42, and 43 return to the normal posture through the reverse balance operation, so that the upright surface 4a and the downward surface 4b of the latch member 41 are connected to the intermediate horizontal member 12. It is made to contact | abut or adjoin to the standing surface 12a and the upper surface 12b. Then, when receiving a moving force in the direction in which the top plate 2 is pushed in, the latch member 41 moves in a direction in which the contact force between the rising surfaces 4a and 12a and between the downward surface 4b and the upper surface 12b increases. The intermediate horizontal member 12 is stretched so as to hold the latched state of the top plate 2 at the front slide position 2F.

  In addition, the latch release lever 45 described later is operated from this position to bring the latch members 41, 42, 43 into a horizontal posture that does not interfere with the intermediate horizontal member 12 as shown in FIG. Is moved to the normal position through the balance operation at the position where the inclined surface 4c of the latch member 41 gets over the upper surface 12b of the intermediate horizontal member 12, and the slide operation is continued by the following slide operation. 13, the upright surface 4 a and the downward surface 4 b are brought into contact with or close to the upright surface 12 a and the upper surface 12 b of the intermediate horizontal member 12. Therefore, even if it receives a moving force in the direction in which the top plate 2 is continuously pushed after that, the latch member 43 remains in the direction in which the contact force between the rising surface 4a and the rising surface 12a and the downward surface 4b and the upper surface 12b increases. In order to stretch against the intermediate horizontal member 12, the latched state of the top plate 2 at the intermediate slide position 2M is maintained.

  Furthermore, after operating the latch release lever 45 described later from this position to bring the latch members 41, 42, 43 into a horizontal posture as shown in FIG. At the position where the inclined surface 4c of the latch members 42, 43 gets over the upper surface 12b of the intermediate horizontal member 12, the latch members 41, 42, 43 return to the normal posture of FIG. 4a and the downward surface 4b are brought into contact with or close to the upright surface 12a and the upper surface 12b of the intermediate horizontal member 12. Therefore, even if it receives a moving force in the direction in which the top plate 2 is pulled forward thereafter, the latch member 42 is increased in the direction in which the contact force between the rising surface 4a and the rising surface 12a and the downward surface 4b and the upper surface 12b increases. However, the latching state at the rear slide position 2B of the top plate 2 is maintained.

  Incidentally, these latch members 41, 42, 43 are accommodated in a latch housing 40x as shown in FIGS. The latch housing 40x is a thin plate that is disposed in a gap of about 10 mm between the top plate support 1 and the top plate 2, and has through holes 40a, 40b, and 40c at a plurality of locations. The latch members 41, 42, 43 that protrude from the thickness only when the top plate 2 is locked to the horizontal member 12 within the thickness of the through holes 40 a, 40 b, 40 c. A transmission member 44 that transmits a lever operating force of the latch release lever 45 described below to the latch member is incorporated. A part of the through hole 40c is a bottomed groove. The latch release lever 45 is incorporated in a latch housing 40y configured separately from the latch housing 40x.

  The latch release lever 45 is attached so as to be rotatable about the vertical axis n, and the transmission member can be operated regardless of which of the operation edges 45a and 45b positioned at the left and right positions on the lower surface of the front edge of the top plate 2. The latch members 41, 42, and 43 are rotated via 44 so that the locked state with the horizontal member 12 can be released. The transmission member 44 includes a rod 44a that moves back and forth in the depth direction as the latch release lever 45 is rotated, and an operating body that scoops the latch members 41 and 43 around the support shaft m when the rod 44a moves rearward. 44b, and a spring 44c that biases the rod 44a forward and offsets the latch release lever 45 to the normal position. 15 (a) → (b), when the actuating body 44b moves rearward, the latch members 41 and 43 are supported by sinking into the tapered force receiving portions 41a and 43a provided integrally with the latch members 41 and 43. A state of scooping up around the axis m is shown. The latch member 42 is attached around the support shaft m in association with a position where the tip 42 b is pushed down by the tip 43 b of the latch member 43, and is configured to operate synchronously with the latch member 43.

  Next, the engagement structures 51 and 52 that restrict the vertical movement of the front edge side of the top plate 2 will be described. As shown in FIGS. 6 to 8, the first movable bracket 21 attached to the support shaft of the front movable roller 20 has a first engagement portion 51 a that projects L-shaped forward, and the top plate 2. The lever housing 40y of the latch release lever 45 attached to the lower surface of the front edge side is provided with a second engaging portion 52a having an L shape toward the rear, and the side frame member 14 Using the housing 23h of the fixed roller 23, a notched first engaged portion 51b is provided at a position where the first engaging portion 51a arrives at the front slide position 2F of the top plate 2 and the rear of the top plate 2 Similarly, a slit-like second engaged portion 52b is provided using the housing 23h of the fixed roller 23 at a portion where the second engaging portion 52a arrives at the slide position 2B. Then, when the top plate 2 is moved from the rear slide position 2B to the front slide position 2F, the first engaging portion 51a provided on the top plate 2 side is moved to the front edge of the top plate support 1 as shown in FIG. An engagement structure 51 that restricts the upward movement of the front edge of the top plate by engaging with a first engaged portion 51b provided on the top portion is configured, and the top plate 2 is moved from the front slide position 2F to the rear slide position 2B. When moved, the second engaging portion 52a provided on the top plate 2 side is engaged with the second engaged portion 52b provided on the front edge portion of the top plate support 1 as shown in FIG. An engagement structure 52 that restricts vertical movement of the front edge side of the top plate 2 is configured. Needless to say, the first engaged portion 51b may be slit-shaped so as to restrict the vertical movement of the front edge side of the top plate 2 when the first engaging portion 51a is engaged.

  Furthermore, the regulation parts 61 and 62 which regulate the vertical movement of the rear edge side of the top plate 2 will be described. As shown in FIGS. 5 and 10, the restricting portion 62 has the horizontal groove f of the rear horizontal member 11 located on the lower surface in the vicinity of the rear edge portion of the top plate 2 at the rear slide position 2 </ b> B and continuously opening forward. In view of this, a roller 25 is attached to the lower surface of the rear edge portion side of the top plate 2 via a horizontal shaft, and the roller 25 is engaged with the horizontal groove f as the top plate 2 moves. Further, as shown in FIGS. 5 and 9, the restricting portion 61 is continuously rearward with the horizontal groove f of the intermediate horizontal member 12 positioned on the lower surface near the rear edge of the top plate 2 at the front slide position 2F. In view of the opening, a roller 26 similar to the roller 25 is attached to the lower surface of the rear edge portion side of the top plate 2 via a horizontal shaft, and this roller 26 is engaged with the horizontal groove f.

  On the other hand, the drawer 3 includes a pulling portion 31, a bottom plate 32, left and right side plates 33, and a back plate 34 as shown in FIGS. 4, 5 and 9, etc., and the width dimension is substantially the same as the width dimension of the top plate. Equally, it is a flat box shape whose vertical dimension is set to about 30 mm, and has a flat box shape positioned between the front half portions of the left and right leg portions 1a with the depth dimension pushed in. The depth dimension of the drawer 3 constituting the furniture with the top board is set to about half of the depth dimension of the top board 2, and is positioned behind the drawer 3 and fixed between the rear half parts of the left and right legs 1a. A tray 7 is provided. The drawer 3 includes the first bracket 23h attached to the horizontal groove f continuously opened to the side of the side frame member 14 and the first bracket 23h attached to the horizontal groove f of the side frame member 14 in front of the intermediate horizontal member 12. A suspension rail 30a, which is a rail member, is attached over the two brackets 30 so as not to interfere with the first movable bracket 21, and a side plate 33 is supported on the suspension rail 30a so as to be slidable back and forth.

  In the present embodiment, the first bracket 23h is common to the housing 23h of the fixed roller 23, and has both functions.

  On the other hand, the fixed tray 7 includes a front plate 71, a bottom plate 72, and a rear plate 73. The front plate 71 and the rear plate 73 are used as the intermediate horizontal member 12 and the rear horizontal member 11, respectively, using a horizontal groove f. The top plate 2 is attached so as not to interfere with the sliding operation. That is, the top plate 2 is slidable between a front slide position 2F in FIG. 2 that opens the fixed tray 7 upward and a rear slide position 2B in FIG. 3 slides between a pull-out position 3F in FIG. 3 that protrudes forward with respect to the top plate 2 that closes the fixed tray 7 and opens upward, and a push-in position 3B in FIG. It can be moved. In FIG. 6, reference numeral 70 denotes a mounting bracket for the fixed tray 7, which is attached to the horizontal groove f of the side frame member 14 behind the intermediate horizontal member 12.

  As described above, the furniture with a top plate is characterized in that the top plate 2 and the drawer 3 are extremely thin, and the appearance is greatly different from the conventional furniture with a top plate.

  The movable roller 20 is inserted into the frame member F1 with its end opened before the top plate support 1 is assembled, or a cutout that can be closed with a cap or the like is provided at an appropriate position. Insert it. Further, it is convenient to use a nut member 8 as a stator as shown in FIG. 18 for attaching the brackets 23h, 30, 70, etc. to the rail groove f. The nut member 8 has a width h smaller than the groove width fx of the frame member F1 and has a length h substantially equal to the internal dimension FX in the vertical direction of the frame member F1. The nut member 8 has a horizontal groove f. An eccentric weight structure that naturally rotates approximately 90 ° after being inserted into the inside is formed. A pair of convex portions 80 formed on the brackets 23h, 30, and 70 are inserted into the nut member 8 so as to hold both edges 8a of the nut member 8, and the brackets 23h, 30, and 70 are passed through in this state. By tightening the screw 81 in the screw hole 8b provided in the nut member 8, the brackets 23h, 30, and 70 can be fixed to the frame member F1 using the horizontal groove f.

  Further, in this embodiment, the top plate 2 and the drawer 3 are supported by the support 1 so as to be slidable independently, and the top plate 2 and the drawer 3 are simultaneously locked and unlocked with respect to the support. Is provided.

  As shown in FIGS. 4, 5, and 19 to 21, the lock mechanism 9 includes a lock rod 91 that is provided on the drawer 3 and can project and retract in a direction perpendicular to the slide direction, the top plate 2, and the support. The body 1 is provided with insertion windows 92a and 93a provided using brackets 92 and 93, and the top plate 2 and the drawer 3 are supported by inserting and removing the lock rod 91 with respect to both the insertion windows 92a and 93a. 1 can be locked and unlocked simultaneously.

  More specifically, the lock rod 91 of the lock mechanism 9 is electromagnetically driven by an actuator 94, reads a user identifier from a recording medium such as an ID card via a reader 95, and the microcomputer unit 96 Only when the authentication is successful, the operation of the lock mechanism 9 is permitted. The microcomputer unit 96 is a normal unit including a CPU 96a, an internal storage device 96b, an external storage device 96c, and an input / output device 96d. The internal storage device 96b and the like store an authentication program, and can be locked and unlocked. It functions as a later-described user identifier registration unit for registering a user identifier given to an authorized person. Then, the CPU 96a sequentially reads and executes the program, thereby registering the locking / unlocking portion 9a that gives an operation command to the actuator 94 that drives the lock rod 91, and the user identifier given to those who have the authority to lock and unlock. The user identifier registration unit 9b, the reading unit 9c that reads the user identifier from the identifier recording medium that proves that the user has the authority to lock and unlock, and the read user identifier is registered in the user identifier registration unit 9b. A determination unit 9d that determines whether or not a certain user identifier matches, and an operation input received by the operation reception unit 9e when the determination unit 9d determines that it matches, from the unlocking unit 9a An operation command is output.

  As described above, the latch device applied to the furniture with the top plate of the present embodiment is such that the top plate 2 as a moving body is slidably supported on the top plate support 1 as a structure. Latch housings 40x and 40y are interposed in a gap existing between the top plate support 1 and the top plate 2, and the top plates are accommodated in the latch housings 40x and 40y within the thickness of the latch housings 40x and 40y. Latch member 41, 42, 43 that protrudes from the thickness only when locking 2 to the top plate support 1, and latch release that is accommodated within the thickness of the latch housing 40x, 40y and can be operated within the thickness Lever 45 and the latch housing 40x and 40y are accommodated within the thickness of the latch housing 40x, and the lever operating force of the latch release lever 45 is transmitted to the latch members 41, 42 and 43. Those incorporating a transmission member 44.

  In this way, the latch device of the present invention can be configured only by inserting the latch housing 40x into the narrow gap between the top plate support 1 which is a structure and the top plate 2 which is a moving body. If there is a simple installation space, it can be easily adopted, and processing for forming a storage space such as digging in the lower surface of the top plate 2 can be eliminated.

  Further, the latch housings 40x and 40y are thin plate-like, and at least the latch members 41, 42 and 43 are accommodated in the through holes 40a, 40b and 40c provided in the thickness direction of the latch housings 40x and 40y. The latch members 41, 42, and 43 can be assembled by making the best use of the thickness of the latch housing 40x, and the thickness of the latch housing 40x can be effectively avoided.

  Furthermore, the top plate 2 as a moving body slides in the horizontal plane, and the latch release lever 45 slides or pivots in the horizontal plane, so the latch release lever rotates around the horizontal axis. Or it can be set as the structure which excluded the alienation factor of thinning effectively compared with the case where what rotates is employ | adopted.

  In addition, the latch housing 40x is fixed to the top plate 2 as a moving body, and the latch members 41, 42, 43 are brought into contact with the outer surface of the top plate support 1 as a structure to engage the top plate 2 as the moving body. Therefore, it can be configured by simply attaching the latch housings 40x and 40y on the top plate 2 side that is a moving body. Application can be made unnecessary.

  As mentioned above, although one Embodiment of this invention was described, the specific structure of each part is not limited only to embodiment mentioned above.

  For example, the latch housings 40x and 40y may be integrally formed. In the above-described embodiment, in order to suitably apply the latch device, the top plate 2 as a moving body slides in the horizontal plane, and the latch release lever 45 slides or swivels in the horizontal plane. However, as other means, it is preferable that the moving body slides in the vertical plane, and the latch release lever slides or turns in the vertical plane. If it does in this way, it can apply suitably to storage furniture etc. in which a sliding door moves to a storage furniture main part.

  Other configurations can be variously modified without departing from the spirit of the present invention.

The perspective view which shows the furniture with a top plate which concerns on one Embodiment of this invention in the state which has a top plate in a back slide position. The perspective view which shows the furniture with a top plate of the embodiment in the state which has a top plate in a front slide position. The perspective view which shows the furniture with a top plate of the embodiment in the state which pulled out the drawer. The perspective view which shows the furniture with a top plate of the embodiment in the state which looked through the top plate. The disassembled perspective view of FIG. The principal part enlarged view of FIG. The fragmentary sectional view which cut | disconnected the furniture with a top plate in the state in which the top plate exists in a front slide position in the embodiment in the vicinity of the side part material. The fragmentary sectional view which cut | disconnected the furniture with a top plate in the state which has a top plate in a back slide position in the same embodiment in the vicinity of the side part material. The fragmentary sectional view which cut | disconnected the furniture with a top plate in the state which has a top plate in a front slide position in the same embodiment in the width direction substantially center part. The fragmentary sectional view which cut | disconnected the furniture with a top plate in the state which has a top plate in a back slide position in the same embodiment in the width direction substantially center part. The top view which shows the latch apparatus of the embodiment. Explanatory drawing at the time of the latch apparatus of the same embodiment latching a top plate in a front slide position. Action | operation explanatory drawing at the time of the latch apparatus of the embodiment latching a top plate in an intermediate slide position. Explanatory drawing at the time of the latch apparatus of the same embodiment latching a top plate in a back slide position. Action | operation explanatory drawing at the time of latch release of the latch apparatus of the embodiment. The disassembled perspective view which shows the latch apparatus of the embodiment. FIG. 17 is an assembled perspective view corresponding to FIG. 16. The figure which shows the attachment structure of the bracket in the embodiment. The figure which shows the locking mechanism of the embodiment. The figure which shows the locking mechanism of the embodiment. The figure which shows the locking mechanism of the embodiment.

Explanation of symbols

1 Structure (top plate support)
2 ... Moving object (top plate)
40a, 40b, 40c ... through hole 40x ... latch housing 41,42,43 ... latch member 44 ... transmission member 45 ... latch release lever

Claims (3)

A latch housing is interposed in the gap in the vertical direction between the structure having the intermediate horizontal member that connects the left and right legs and the movable body that is horizontally slidably supported on the structure. And a latch member that protrudes in the thickness direction from the thickness only when the movable body is accommodated within the thickness of the latch housing and is engaged with the intermediate horizontal member in the structure, and the thickness of the latch housing. And a latch release lever that can be operated by sliding or turning horizontally within the thickness thereof, and a lever operating force of the latch release lever that is contained within the thickness of the latch housing is latched. A latch device comprising a transmission member for transmission to the member. 2. The latch device according to claim 1, wherein the latch housing is of a thin plate shape, and at least the latch member is accommodated in a through hole provided in the thickness direction of the latch housing. The latch device according to claim 1 or 2, wherein the latch housing is fixed to the movable body, and the latch member is engaged with the outer surface of the intermediate horizontal member to lock the movable body .

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