JPH0243221Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to the structure of a desk.

[Prior art and its problems] Conventional office desks generally have a pair of left and right legs with the bottom surface of the top plate placed on the upper end surfaces of the legs and the two legs fixed together. In order to do this, the legs had to be firmly and integrally fixed to the underside of the top board in advance at the factory, which created a large space between the left and right legs, making the desk extremely bulky when packed and transported.

In order to eliminate this inconvenience, the Utility Model 53-
In Publication No. 71002, the rear end portions of the left and right legs are removably connected via a rear curtain plate, and mounting holes are formed in the upper surfaces of the legs and the legs are locked in the respective mounting holes. A mounting device in which the pieces are locked is removably attached, and on the top surface of the mounting device,
A configuration is proposed in which the lower surface of a top plate is placed and a mounting pin protruding upward from the mounting device is engaged with a mounting hole drilled in the lower surface of the top plate so as to extend laterally.

According to this configuration, although the top plate cannot be removed upwardly with respect to both legs, the relative lateral movement of the mounting pin in the mounting device and the mounting hole on the bottom surface of the top plate prevents both from being removed. Because of this, the top plate tends to move laterally relative to both legs due to looseness between the mounting pins and mounting holes, and furthermore, the horizontal movement of the legs relative to the bottom surface of the top plate causes the left and right legs to move. There was also a problem where the spacing between the desks was uneven between the front and back sides of the desk.

The present invention aims to solve these problems.

[Means for solving problems]

Therefore, in the present invention, in a desk consisting of a pair of left and right legs, a rear curtain plate that removably connects the legs, and a top plate that is detachably attached to the legs, the top plate is , the top plate is dropped between the two legs so that the left and right end surfaces of the top plate are in contact with the inner surfaces of the two legs, and the rear end surface of the top plate is in contact with the front side of the rear curtain plate. On the other hand, a locking groove having a longitudinal groove is bored at one rear end of both ends of the desk in the front and back direction on the inner surface of the legs, and a support member for supporting the lower surface of the top plate is disposed. Each support member is provided with a downward hook-shaped locking pawl that engages with the locking groove through the longitudinal groove, and when the top plate is dropped into the top plate, A removable fixing member is provided which engages upward in a manner that cannot be removed, and each of the supporting members is further provided with a positioning hole provided in the top plate in a state where the locking pawl is engaged with the locking groove. It has a structure in which a protrusion into which it fits is provided.

[Functions and effects of the idea]

In this configuration, in order to assemble the desk, first stand the legs up by connecting them with the rear curtain plate, and then attach the support member to the inner surface of the legs by attaching the support member to the inner surface of the leg. After inserting the retaining pawl into the longitudinal groove, it is attached by moving forward and engaging with the retaining groove.

Next, the top plate is dropped between the legs so that the rear end surface of the top plate is in contact with the front side of the rear curtain plate, so that the top plate
supported by support members attached to the inner surfaces of both legs, and fixedly engaged upward by fixing metal fittings provided on each support member;
A protrusion provided on each support member fits into and engages with a positioning hole on the lower surface of the top plate.

In this case, the rear end surface of the top plate is in contact with the front side of the rear curtain plate, and the left and right end surfaces of the top plate are in contact with the inner surfaces of both legs, so that the top plate It is held in such a way that it cannot be moved with any wobble in either the rear or left or right directions.

Moreover, each of the support members is attached in a state in which it cannot be moved forward because the locking pawl of the support member is inserted into the longitudinal groove and then moved forward and engaged with the locking groove. Since the protrusions provided on this support member fit into the positioning holes drilled in the top plate, each of the support members can be irremovably attached to both legs, while the top plate , it is held unmovable with some wobbling in the front direction.

Moreover, since the protrusions provided on the support member fit into the positioning holes formed in the top plate, it is possible to prevent the legs from moving away from the top plate.

Therefore, according to the present invention, by making the legs, rear curtain plate, and top plate that make up the desk removable, the desk can be disassembled into the flat top plate, legs, and rear curtain plate. Although it is designed to be packed and transported compactly and can be easily assembled by the user on site, the top plate does not wobble in any direction when assembled, such as up and down, left and right, and front and rear. It is possible to reliably assemble the desk so that it does not move, and it also has the effect of reliably preventing the distance between the legs from becoming uneven on the front side and the rear side of the desk.

〔Example〕

Next, an embodiment of the present invention will be described based on the drawings. In the drawings, reference numeral 1 indicates a rectangular top plate in plan view, reference numeral 2 indicates a pair of left and right legs each having a rectangular shape in side view, and reference numeral 3 indicates a top plate having a rectangular shape in plan view. , respectively show rear curtain plates formed in a rectangular shape when viewed from the side.

The top plate 1 has a flat downward U-shaped cross section with its front and rear ends bent downward, and a plurality of longitudinal reinforcing members 4 extending left and right are stretched on the lower surface of the top plate 1. Of these longitudinal reinforcing members 4, the longitudinal reinforcing members 4 located at the front and rear ends of the top plate 1 are provided with insertion holes 6 or recesses at both left and right ends, respectively, for mounting supporting members 5, which will be described later. Form.

In addition, positioning holes 8a, 8b are provided in the lower surface plate 24 of the side edge plate 7, which has a U-shaped cross section and is fixed to both left and right ends of the top plate 1, in the vicinity of each of the insertion holes 6, and are spaced by an appropriate dimension l1. , 8c and 8d are drilled respectively.

The rear curtain plate 3 has vertical reinforcing members 10 extending vertically fixed to both left and right ends of the main body having a flat U-shape in cross section, and each of the longitudinal reinforcing members 10 has an outward opening. Vertical dovetail grooves 11 are carved so as to extend in the longitudinal direction of the longitudinal reinforcing member 10, and a contact plate 12 is fixed to the upper end of each dovetail groove 11. Furthermore, a support fitting 14 for fixing the base of a lamp post extending toward the top surface of the top plate 1 is fixed to the upper end of one of the longitudinal reinforcing members 10 .

A longitudinally elongated protruding strip 15 having a trapezoidal cross section is provided on the rear part of the inner surface of both leg bodies 2, and the longitudinally elongating stripe 15 is connected to the left and right dovetail grooves 1 on the rear curtain plate 3.
1, the legs 2 and the rear curtain plate 3 are removably connected in a U-shape in plan view. Drop the plate 1 so that the left and right end surfaces of the top plate 1 are in contact with the inner surfaces of the legs 2, and the rear end surface of the top plate 1 is in contact with the front side of the rear curtain plate 3. Configure it as follows.

A pair of locking grooves 16 having a longitudinal groove 17 at one end in the front direction are bored in the upper part of the inner surface of both leg bodies 2 at an appropriate distance l2 in the rear part, while the front part A pair of locking grooves 16 having a longitudinal groove 17 at one end in the rearward direction are bored at an appropriate distance l2.

On the other hand, reference numeral 5 indicates four support members that support the lower surface of the top plate 1. On the side surface of the main body 19 of each support member 5, a longitudinal groove 17 at one end is inserted into the locking groove 16. A downward hook-shaped locking pawl 18 is integrally molded so as to be engaged with the top plate 1 when the top plate 1 is dropped into the main body 19. A fixing metal fitting 20 which can be freely engaged and detached is provided so as to be movable forward and backward in the horizontal direction.

In the illustrated embodiment, the fixing metal fitting 29 is biased by a spring 21 so as to be able to move forward and backward.
0 is formed into a wedge shape with an upper inclined surface 22, and the lower end 23 of the lower plate 24 on the side edge plate 7 of the top plate 2 comes into contact with the upper inclined surface 22, and the spring 21
Retract the fixing metal fittings 20 against the force, and remove the bottom plate 24.
When the tip 23 of the top plate 1 is below the fixing fitting 20, the fixing fitting 20, which is moved forward by the force of the spring 21, locks the top plate 1 so that it cannot move upward.

Further, on the upper surface of the main body 19 of each support member 5, positioning holes 8a, 8b, 8c, 8d provided in the top plate are formed when the locking claw 18 of the support member 5 is engaged with the locking groove 16. A protrusion 25 is provided so as to fit into the.

In this configuration, first, when the longitudinal protruding strips 15 on the rear part of the inner surface of both legs 2 are fitted into the dovetail grooves at both left and right ends of the rear curtain plate 3, the lower surface of the contact plate 12 at the upper end of the dovetail grooves 11 is fitted. The vertically elongated projecting strips 15 are fitted until their upper ends abut, and the legs 2 and the rear curtain plate 3 can be connected in a U-shape in plan view without the rear curtain plate 3 lowering any further.

Next, the support member 5 is inserted into the inner surface of both legs 2, and the locking claw 18 of the support member 5 is inserted into the longitudinal groove 17 as shown by the two-dot chain line in FIG. It is attached by moving forward or backward to engage with the locking groove 16.

Then, the top plate 1 is placed between the legs 2 in the first
As shown by the arrow in FIG. 3, the top plate 1 is attached to the inner surface of the legs 2 by dropping it so that the rear end surface of the top plate 2 is in contact with the front surface of the rear curtain plate 3. It is supported by each of the supporting members 5, and is irremovably engaged upwardly by the fixing metal fittings 20 provided on each supporting member 5, and the protrusions 25 provided on each supporting member 5 are attached to the top plate. Positioning holes 8a, 8b, 8c, 8d on the lower surface
It fits and engages.

In this assembled state, the top plate 1 has its rear end surface in contact with the front surface of the rear curtain plate 3, and the left and right end surfaces of the top plate 1 in contact with the inner surfaces of both legs 2. , the top plate 1 is held so as not to be movable with any play in either the rear direction or the left or right direction.

On the other hand, each of the support members 5 is inserted into the longitudinal groove 17 after the locking claw 18 of the support member 5 is moved forward or backward and engaged with the locking groove 16. The protrusions 25 in the positioning holes 8a, 8b, 8c, 8 in the top plate 1
By fitting and engaging with d, the locking groove 16
At the same time, the top plate 1 is also held in a state in which it cannot be moved with any wobble in the forward direction, and the projections 2 provided on each support member 5
5 indicates positioning holes 8a, 8 bored in the top plate 1.
By fitting into b, 8c, 8d, both legs 2
can be prevented from moving away from the top plate 1.

As shown in FIGS. 15 and 16, the rear curtain plate 3 is formed into a frame structure by left and right and upper and lower members, and the front and rear cover plates 31 and 3 are provided on the front and rear surfaces of the frame structure.
Needless to say, the present invention can also be applied to a configuration in which a plurality of trays 33 are detachably attached to the trays 33 for accommodating wiring cords for OA equipment within the frame structure.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the desk, FIG. 2 is a bottom view of the top plate, FIG. Fig. 5 is a front view of the rear curtain plate, Fig. 6 is a plan view, Fig. 7 is a partially cutaway left side view, and Fig. 8 is a part of - line in Fig. 5. Fig. 9 is a side view of the left leg body, Fig. 10 is a plan view, Fig. 11 is a sectional view taken along the - line in Fig. 9, and Fig. 12 shows the rear curtain plate and the left and right leg bodies. FIG. 13 is a plan view showing the assembled state of the top plate as seen from the - line in FIG. 12, and FIG. The figure is a plan view of another embodiment, and FIG. 16 is a cross-sectional view taken along the line -2 in FIG. 15. 1...Top plate, 2...Legs, 3...Rear curtain plate, 5...
... Supporting member, 8a, 8b, 8c, 8d... Positioning hole, 16... Locking groove, 17... Longitudinal groove, 18...
...Latching claw, 20...Fixing metal fitting, 25...Protrusion.

Claims (1)

[Scope of utility model registration request] In a desk consisting of a pair of left and right legs, a rear curtain plate that detachably connects the legs, and a top plate that is detachably attached to the legs, the top plate is attached between the legs. The left and right end surfaces of the top plate are brought into contact with the inner surfaces of the legs, and the top plate is lowered so that the rear end surfaces of the top plate are in contact with the front surfaces of the rear curtain plate. A locking groove with a vertical groove is provided on the inner surface of the desk at one rear end of both ends in the front and back direction, and a support member for supporting the lower surface of the top plate is provided. The member is provided with a downward hook-shaped locking pawl that engages with the locking groove through the longitudinal groove, and is fixedly engaged upward with respect to the top plate when the top plate is dropped. Further, each of the supporting members is provided with a protrusion that fits into a positioning hole provided in the top plate with the locking claw engaged with the locking groove. A desk characterized by: