JP2748880B2 - desk - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desk suitably used in an office or the like.

[0002]

2. Description of the Related Art A desk of this kind is generally constructed such that a leg element and a top plate are separately packed and stored on the site for convenience of storage, transportation, or transportation to the site. .

[0003] Such a desk is first placed on a floor with its top plate facing down, and left and right leg elements are placed on the back of the top plate in an inverted state, and each leg element is placed on the floor. Fix each to the top plate with fasteners such as bolts, and connect the anti-use end side of these leg elements through a connecting member such as a curtain plate, and then turn the entire desk upside down and install it at the desired location I am trying to do it.

[0004]

However, in such a case, since the completed desk must be lifted and the posture changed, it is necessary to secure a relatively large assembling space. However, there is a problem that it is difficult to perform an assembling work. And the problem is
This also occurs when the desk is disassembled and moved to another place.

As a measure to cope with such a problem, the left and right leg elements are erected in a proper posture, the non-use end sides of the leg elements are connected by a curtain plate or the like, and a top plate is placed on the leg elements. It is conceivable to mount and fix. However, with only this, it is impossible to prevent the use end sides of the left and right leg elements from being displaced outward or biased inward. For this reason, when connecting the left and right leg elements and the top plate placed thereon with bolts or the like, it is difficult to position the bolt holes and the like, which causes a problem that a large amount of labor is required for assembly.

In order to solve this problem, the upper ends of the left and right leg elements are connected by a plurality of horizontal members to determine the distance and parallelism between the two leg elements, and the top plate is placed in that state. It is also conceivable to fix it. However, with such a configuration, there is a problem that not only the number of parts is increased due to the necessity of an extra cross member, but also the man-hour required for the manufacturing is increased, and the assembling work and the disassembling work are also troublesome. I do.

An object of the present invention is to eliminate all such disadvantages.

[0008]

In order to achieve the above object, the present invention takes the following measures.
That is, the desk according to the present invention is configured such that the anti-use end sides of the left and right leg elements are connected via a connecting member, and a top plate is mounted on the both leg elements. A pair of draw-out rails provided on the lower surface and capable of guiding the inner surfaces of the two leg elements on the outer surface, and a top plate provided between the non-use end side of the top plate and each leg element and placed on the leg element a slide engaging portion which prohibits the upward movement of the top plate engage by sliding in the longitudinal direction, top engages the slide engaging portion engaged
At the same time, the upward movement of the plate with respect to the leg element is prohibited, and the top plate is caused to fall down, and in the lowered state, the forward and backward movement of the top plate with respect to the leg element is prohibited, and the top plate cooperates with the draw-out rail. A drop engaging portion for performing relative positioning in the left-right direction with the leg element; and a fastener for connecting the top plate and the leg element to maintain the engaged state of the drop engaging portion. Features.

[0009] In the case where the top plate is formed by suspending the side plates from the left and right side edges of the upper surface plate and fixing the reinforcement frame on the lower surface of the upper surface plate between the two side plates, the drop-in engagement portion is provided. In a preferred mode, an upright plate is projected from the upper surface use end side of the leg element, and the projecting position of the upright plate is changed by a reinforcing frame of a top plate placed on the upright plate into a slide engagement portion. And the lower edge of the top plate can be engaged with the side edge of the upright plate in the lowered state. it can.

In this case, in order to simplify the connecting portion between the leg element and the top plate, one end of the upright plate is extended outward from the outer side surface of the leg element, and a portion below the extended end is provided. It is preferable that a tongue piece attached to the lower surface of the reinforcing frame of the top plate is integrally protruded from the edge, and this tongue piece is fastened to the reinforcing frame via a fastener.

In the case where the top plate has a side plate hanging down from both left and right edges of the upper surface plate and a reinforcing frame is fixed to the lower surface of the upper surface plate with the reinforcing frame positioned between the two side plates, As another preferred embodiment of the joint portion, a prismatic projection is provided on the upper surface using end side of the leg element, and the projection position of the projection is determined by a reinforcing frame of a top plate placed on the projection. One that is configured so that it can be dropped on the front side of the projection at the same time as the engagement of the slide engagement portion, and that the lower edge of the side plate of the top plate can be engaged with the side surface of the projection in the lowered state Can be. In this case, in order to particularly reduce the number of parts, it is desirable that the projection is made of synthetic resin integrally formed with a cap member that closes the front end opening of the leg element.

[0012]

With such a configuration, the left and right leg elements are connected to each other through a connecting member while the left and right leg elements are kept in a normal posture, and then the upper and lower leg elements are mounted on both leg elements. It can be assembled by placing a board. That is, if the anti-use ends of the left and right leg elements are simply joined to each other by a joining member such as a curtain plate, the use end sides of the two leg elements may be deviated outward or inward as described above. According to the invention, since the inner surfaces of the two leg elements can be guided by the draw-out rails attached to the lower surface of the top plate, the posture of the two leg elements is substantially corrected by placing the top plate. be able to. When the top plate is slid in the front-rear direction from that state, the slide engagement portion engages and the upward movement of the top plate with respect to the leg element is prohibited. At the same time, the drop operation of the top plate is caused, and the drop engaging portion is brought into the engaged state. As a result, forward and backward movement of the top plate is prohibited, the slide engagement portion cannot be disengaged, and the left and right positioning of the leg element with respect to the top plate is performed in cooperation with the pull-out rail. Therefore, when connecting the leg element and the top plate with a fastening device such as a bolt, it is possible to easily attach the fastening device. There is no need to proceed with mounting work.

As described above, according to the present invention, the assembling and disassembling operations can be performed without turning the desk upside down. Moreover, by simply sliding the top plate placed on the leg element in the front-rear direction, the top plate and the leg element can be mutually positioned in the front-rear and left-right directions, and finally the top plate is fixed to the leg element. The fastening device can also be securely and easily mounted at a predetermined mounting position.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

As shown in FIGS. 1 and 2, this desk has an anti-use end side of a leg 1 having a U-shape in a side view as a left leg element and an anti-use end of a sleeve 2 as a right leg element. An end side is connected via a curtain plate 3 as a connecting member, and a top plate 4 is mounted on the leg 1 and the sleeve 2. Slide engagement portions 5A and 5B are provided between the non-use end side and the top plate 4, and a drop engagement portion 6 is provided between the use end side of the leg 1 and the top plate 4.

As shown in FIGS. 4 to 6, the top plate 4 has a top plate 7, a front plate 8 curled integrally from the front edge of the top plate 7, and a rear edge of the top plate 7 from the rear edge. The back plate 9 is made of sheet metal and includes a back plate 9 suspended downward integrally and side plates 11 suspended from both right and left edges of the upper surface plate 7.
Are rigidly connected to the upper surface plate 7 by spot welding or the like. A decorative plate 12 is attached to the outer surfaces of the upper plate 7, the front plate 8, and the back plate 9, and an end cover 13 made of synthetic resin is detachably attached to the outer surface of the side plate 11 via claws 13a. It is. A front reinforcing frame 1 made of sheet metal is provided on the lower surface of the upper plate 7.
4. The intermediate reinforcing frame 15 and the rear reinforcing frame 16 are located between the side plates 11 and are rigidly connected by spot welding or the like. A pair of draw-out rails 17 are attached to the lower surfaces of the front reinforcing frame 14 and the intermediate reinforcing frame 15 in parallel, and a central drawer 18 is supported between the draw-out rails 17. The draw-out rail 17 has an inverted L-shaped cross section, and is fixed at a position where its outer surface 17a can guide the inner surface 1a of the leg 1 and the inner surface 2a of the sleeve 2 into contact.

The curtain plate 3 includes a face plate 21, side pieces 22 integrally extending forward from left and right side edges of the face plate 21, and upper pieces 23 integrally extending forward from an upper edge of the face plate 21. And a lower piece 24 integrally extending forward from the lower edge of the face plate 21. The side piece 22 has a cutout groove 25 at the lower end and a bolt near the upper end. An insertion hole 26 is provided. The notch groove 25 is rotatably hooked on a pin 27 protruding from the inner surface 1a of the leg 1 and the inner surface 2a of the sleeve 2, respectively, and the bolt insertion hole 26 is connected to the leg 1, and By aligning the screw holes 28 formed on the inner surface of the sleeve 2 with the bolts 29 inserted into the bolt insertion holes 26 and screwing the bolts 29 into the screw holes 28, the curtain plate 3 is attached to the leg 1 and the sleeves. It is fixed to 2.

As shown in FIGS. 3 and 4, the slide engaging portion 5A provided between the leg 1 and the top plate 4 is secured to the upper surface of the leg 1 by using a bolt 31 on the non-use end side. And a rectangular hole 30 formed in the front surface of the rear reinforcing frame 16 of the top plate 4 corresponding to the engaging block 32. The engaging block 32 is provided at its rear end. It has a tapered engagement projection 33 in the form of a taper that engages with the rectangular hole 30. In this embodiment,
The engagement block 32 has an engagement projection 34 on the front end surface thereof. The engagement projection 34 is effective when the engagement block 32 is attached to a leg on the right side of the desk. Therefore, in the case of the illustrated example, it is a matter of course that an engagement block having no engagement protrusion 34 on the front side may be used. Positioning projections 35 project from both ends of the lower surface of the engagement block 32. By engaging these positioning projections 35 with positioning holes 36 formed in the upper surface of the leg 1,
This prevents the engagement block 32 from shifting in the rotational direction.

As shown in FIGS. 2, 9 and 10, a slide engagement portion 5B provided between the sleeve 2 and the top plate 4 has a pair of screws screwed to the non-use end side on the upper surface of the sleeve 2. Stepped pin 37
And a pair of engaging holes 38 formed in the rear reinforcing frame 16 of the top plate 4 corresponding to the two stepped pins 37. As shown in FIGS. 9 (a is a bottom view, b is a side sectional view) and FIG. 10 (a is a bottom view, b is a side sectional view), the stepped pin 37 has a large diameter portion 41 at the tip of the small diameter portion 39. And a screw portion 42 protruding from the base end.
2 is screwed into a screw hole (not shown) formed on the upper surface of the sleeve 2. 9 and 10, the engaging hole 38 is formed continuously from the front surface 16a to the bottom surface 16b of the rear reinforcing frame 16 and has a lateral width larger than the diameter of the large diameter portion 41 of the stepped pin 37. A large portion 43 and a small width portion 44 formed continuously from the rear end of the large portion 43 and having a lateral width larger than the diameter of the small diameter portion 39 of the stepped pin 37 and smaller than the diameter of the large diameter portion 41. Then, as shown in FIG. 9, the top plate 4 is placed on the leg 1 and the sleeve 2 so that the stepped pin 37 is located in front of the engagement hole 38, and the top plate 4 is moved forward. As shown in FIG. 10, the small-diameter portion 39 of the stepped pin 27 engages with the small-width portion 44 of the engagement hole 38 as shown in FIG. In addition, in this embodiment, in order to arrange the sleeve 2 on the left side in the figure, the top plate 4
A pair of engagement holes 38 are also provided on the left side of the rear reinforcing frame 16.

As shown in FIGS. 2, 3, 7 and 8, the drop-in engaging portion 6 has an upright plate 46 protruding from the upper end of the leg 1 at the use end thereof, and The installation position is set such that the front reinforcing frame 14 of the top plate 4 placed on the upright plate 46 can drop to the front side of the upright plate 46 simultaneously with the engagement of the slide engagement portions 5A, 5B, In the lowered state, the lower edge 11 of the side plate 11 of the top plate 4 is attached to the side edge 46a of the upright plate 46.
a is configured to be able to engage. The upright plate 46 has a strip shape fixed to the leg 1 via a mounting piece 47, and has one end extending outward beyond the outer side surface 1 b of the leg 1. A tongue piece 48 attached to the lower surface of the front reinforcement frame 14 of the top plate 4 is integrally provided from the lower edge of the top plate. The mounting piece 47 is a flat plate extending integrally from the lower edge of the standing plate 46 to the rear, and has a screw hole 49 at the center. Then, the mounting piece 47 is passed through a slit 51 provided in the upper wall 1c of the leg body 1 and sunk into the lower surface side of the upper wall 1c, and the bolt 53 inserted from the bolt insertion hole 52 of the upper wall 1c is removed. The upright plate 46 is fixed to the leg 1 by being screwed into a screw hole 49 of the mounting piece 47. On the other hand, the tongue piece 48 is a flat plate extending forward and has a bolt insertion hole 54, and a bolt 55 serving as a fastening tool is inserted into the front reinforcement frame 14 of the top plate 4 through the bolt insertion hole 54. It is screwed into the screw hole 56 provided.

A bolt 57 as a fastening tool for connecting the sleeve 2 and the top plate 4 is provided in the front reinforcing frame 14 of the top plate 4 through a bolt insertion hole 59 formed in a front frame member 58 of the sleeve 2. The screw holes 61 are screwed.

With such a structure, the leg 1 and the sleeve 2 are connected to each other through the curtain plate 3 while the leg 1 and the sleeve 2 are standing in a normal posture, and then the leg 1 and the sleeve 2 are put together. It can be assembled by placing the top plate 4 on the sleeve 1 and the sleeve 2. That is, if the non-use ends of the leg 1 and the sleeve 2 are simply joined to each other by the curtain plate 3, the use end side of the leg 1 and the sleeve 2 may be deviated outward or inward.
In this desk, the inner surfaces 1a and 2a of the legs 1 and the sleeves 2 can be guided by the draw-out rails 17 attached to the lower surface of the top plate 4. The posture of the leg 1 and the sleeve 2 can be substantially corrected. When the top plate 4 is slid forward from this state (see FIGS. 5 and 7), the slide engagement portions 5A and 5B engage with each other, and the top plate 4 moves upward with respect to the legs 1 and the sleeves 2. It is forbidden. At the same time, the drop operation of the top plate 4 is induced, and the drop engaging portion 6 is brought into the engaged state (see FIGS. 6 and 8). As a result, forward and backward movement of the top plate 7 is prohibited, and the slide engagement portions 5A and 5B cannot be disengaged.
7, the left and right positions of the leg 1 and the sleeve 2 with respect to the top plate 4 are determined. Therefore, the bolts 55, 5
When connecting the leg 1 and the sleeve 2 to the top plate 4 by 7,
There is no mismatch between the bolt insertion holes 54, 59 and the screw holes 56, 61, and the bolts 55, 57 can be securely and easily mounted.

In the embodiment shown in FIGS. 11 to 13, the leg 1 as a leg element and the slide engaging portion 5A provided on the non-use end side of the top plate 4 are formed by the stepped pin 137 and the engaging hole 138. It is becoming. The stepped pin 137 is the same as the stepped pin 37 provided on the sleeve 2, and includes a large-diameter portion 141 and a small-diameter portion 13.
9 and a screw portion 142, and the screw portion 142 is screwed to the upper surface of the leg 1. The engagement hole 138 is the same as the engagement hole 38 for attaching the sleeve 2,
3 and a small width portion 144. This engagement hole 13
8 is provided at the end of the rear reinforcing frame 16 of the top plate 4. Further, the drop engaging portion 6 in this embodiment has a projection 146 having a substantially prismatic shape protruding from the upper end of the leg 1 at the used end side, and the projecting position of the projection 146 is placed on the projection 146. The front reinforcement frame 14 of the placed top plate 4 has the slide engagement portions 5A, 5A.
The lower edge 11a of the side plate 11 of the top plate 4 is configured so that the lower edge 11a of the side plate 11 of the top plate 4 can engage with the side surface 146a of the projection 146 in the lowered state at the same time as the engagement of B. Things. FIG. 13 shows a drop state. The side surface 146a of the projection 146 is inclined in a direction away from the side plate of the top plate toward the upper end, thereby facilitating the operation of dropping the top plate. The projection 146 is made of synthetic resin integrally formed with a cap member 1k for closing the front end opening of the leg 1, and is formed on the upper wall 1c of the leg 1 by utilizing elastic deformation of the member. It protrudes from the part 1d. 1e is a bolt insertion hole for inserting a bolt 155 as a fastening tool. The bolt 155 is screwed into a screw hole 156 provided in the front reinforcing frame 14 of the top plate 4.

The embodiment shown in FIG. 14 and FIG.
And the slide engagement portion 5A provided on the non-use end side of the top plate 4,
A rear upright plate 246, a tongue piece 248 extending rearward from a lower edge of one end of the rear upright plate 246, and a tongue piece 248;
Are bolts 250 fixed to the top plate 4. The rear upright plate 246, like the upright plate 46,
It is fixed to the leg 1 via a mounting piece 247. More specifically, the attachment piece 247 is a flat plate extending integrally from the lower edge of the upright plate 246 to the front, and has a screw hole 24 at the center.
9. Then, the mounting piece 247 is passed through a slit 251 provided in the upper wall 1c of the leg 1 so that the upper wall 1
c, and the bolt 253 inserted from the bolt insertion hole 252 of the upper wall 1c is screwed into the screw hole 249 of the mounting piece 247 to thereby raise the standing plate 246.
Is fixed to the leg 1. In the case of this embodiment, the top plate 4 is placed on the leg 1 so that the rear upright plate 246 is located in front of the rear reinforcing frame 16, and the top plate 4 is slid forward. Then, the corners of the front surface 16a and the bottom surface 16b of the rear reinforcing frame 16 of the top plate 4 are engaged with the rear upright plate 246 and the tongue piece 248 in the orthogonal state, and the forward movement of the top plate 4 is locked. . Then, the tongue piece 248 is screwed into the screw hole 2 of the top plate 4.
The top plate 4 is prevented from moving upward by being tightened by the bolt 250 screwed to the bolt 60. Since the drop engagement portion 6 of this embodiment is the same as that of the embodiment shown in FIGS. 1 to 10, the corresponding portions are denoted by the same reference numerals and description thereof will be omitted.

The leg element is not limited to a leg or a sleeve having a U-shape in side view, but is, for example, a side plate having a rectangular shape in side view as shown by an imaginary line in FIG. You may. The combination of the leg elements can be variously modified. For example, the combination of the leg body and the sleeve may be reversed from the illustrated example, or the sleeve may be provided on both the left and right sides.

Further, the coupling element is not limited to the curtain plate, but may be a bar-shaped horizontal member or the like.

Further, the configuration of the top plate is not limited to that of the illustrated embodiment. For example, side plates may be integrally formed on both left and right edges of the top plate.

Further, the structure of the slide engaging portion is not limited to the embodiment described above. For example, a sleeve-shaped leg element may be provided with a block 32 as shown in FIGS. What consists of a rectangular hole 30 may be adopted. When the stepped pin and the engaging hole are combined, it is also conceivable that the stepped pin is provided on the top plate and the leg element is provided with the engaging hole, contrary to the above.

Further, the configuration of the drop-in engagement portion is not limited to the illustrated embodiment. For example, the side edge 46 of the upright plate 46
a may be inclined as shown by an imaginary line in FIG. 7, so that the dropping operation can be made smoother.

Further, the sleeve-shaped leg element may of course be provided with the above-mentioned recessed engagement portion.

In addition, various modifications can be made without departing from the spirit of the present invention.

[0032]

As described in detail above, according to the present invention,
Assembly and disassembly can be performed without turning the desk upside down. Moreover, simply by sliding the top plate placed on the leg element in the longitudinal direction, the slide engaging section
Are engaged and the upward movement of the top plate with respect to the leg element is prohibited. So
At the same time, the drop operation of the top plate is induced, and the drop engagement part is engaged.
State. As a result, the back and forth movement of the
The ride-engagement part cannot be disengaged, and the top plate and the leg element can be positioned in front, back, left, and right, and the fastening tool for fixing the top plate to the leg element is also securely in the specified mounting position. And it can be easily mounted. Therefore, even one person can perform the assembly work lightly. In addition, since there is no need for a horizontal member or the like for connecting the left and right leg elements, the number of parts is small, the structure can be simplified, and the necessity of rolling down the parts is eliminated. It is possible to facilitate simplification of disassembly and assembly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the same embodiment.

FIG. 3 is a perspective view showing a leg portion of the embodiment.

FIG. 4 is a perspective view showing a lower surface of the top plate of the embodiment.

FIG. 5 is a cross-sectional view showing a main part of the embodiment.

FIG. 6 is a transverse sectional view showing a main part of the embodiment.

FIG. 7 is a front sectional view showing the drop-in engagement portion of the embodiment.

FIG. 8 is a front sectional view showing the drop-in engagement portion of the embodiment.

FIG. 9 is an explanatory view showing a slide engaging portion of the embodiment.

FIG. 10 is an explanatory view showing a slide engaging portion of the embodiment.

FIG. 11 is a perspective view corresponding to FIG. 3, showing another embodiment of the present invention.

FIG. 12 is a perspective view showing the same embodiment and corresponding to FIG. 4;

FIG. 13 is a front sectional view of the same embodiment and corresponding to FIG. 8;

FIG. 14 is a perspective view corresponding to FIG. 3, showing still another embodiment of the present invention.

FIG. 15 is a perspective view showing the same embodiment and corresponding to FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Leg element (leg) 2 ... Leg element (sleeve) 3 ... Connection 4 ... Top plate 5A ... Slide engagement part 5B ... Slide engagement part 6 ... Dip engagement part 7 ... Top plate 11 ... Side plate 11a ... Bottom Edge 14 ... Front reinforcement frame 15 ... Intermediate reinforcement frame 16 ... Rear reinforcement frame 17 ... Drawing rail 18 ... Center drawer 46 ... Standing plate 46a ... Side edge 48 ... Tongue piece 55 ... Fixing tool (bolt) 57 ... Fixing tool (bolt)

Claims (5)

(57) [Claims] 1. A desk having left and right leg elements opposite to each other in use through a coupling member, and a top plate mounted on the two leg elements, the desk being provided on a lower surface of the top plate. A pair of draw-out rails that can guide the inner side surfaces of both leg elements on the outer side surface, and a top plate mounted on the leg element provided between the non-use end side of the top plate and each leg element in the front-rear direction. A sliding engagement portion that is engaged by sliding to prevent upward movement of the top plate, and the slide engagement portion engages with a leg element of the top plate to
At the same time, the dropping operation of the top plate is caused to prohibit the top plate from moving forward and backward with respect to the leg element in the lowered state, and the top plate and the leg element cooperate with the drawing rail. A desk comprising: a drop engaging portion for performing relative positioning in the left-right direction; and a fastener for connecting a top plate and a leg element to maintain the engaged state of the drop engaging portion. . 2. A top plate in which a side plate is hung down from left and right side edges of an upper surface plate, and a reinforcing frame is fixedly mounted on a lower surface of the upper surface plate between the two side plates. However, the upright plate protrudes from the upper use end side of the leg element, and the projecting position of the upright plate is adjusted by the reinforcing frame of the top plate placed on the upright plate simultaneously with the engagement of the slide engagement portion. 2. The desk according to claim 1, wherein the table is set so as to be able to drop into the front side of the upright plate, and in the dropped state, the lower edge of the side plate of the top plate can be engaged with the side edge of the upright plate. 3. An upright plate has one end extending outwardly from the outer surface of the leg element, and a tongue attached to the lower surface of the reinforcing frame of the top plate from the lower edge of the extended end. 3. The desk according to claim 2, wherein the tongue is protruded and fastened to the reinforcing frame via a fastener. 4. A top plate having side plates hanging down from both left and right side edges of an upper surface plate, and a reinforcing frame positioned on the lower surface of the upper surface plate between the two side plates and fixed thereto. A projection having a substantially prismatic shape is projected from the upper end of the leg element at the use end side, and the projecting position of the projection is adjusted by the reinforcing frame of the top plate placed on the projection by the engagement of the slide engagement portion. 2. The desk according to claim 1, wherein the desk is configured so as to be able to drop into the front side of the projection, so that the lower edge of the side plate of the top plate can be engaged with the side surface of the projection in the lowered state. 5. The desk according to claim 4, wherein the projection is made of a synthetic resin integrally formed with a cap member for closing a front end opening of the leg element.