JPS63114Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to the structure of a device for attaching a top plate to a desk.

[Conventional technology and its problems]

In conventional office desks, the bottom surface of the top plate is placed on the upper end surface of the left and right legs, and the two are generally fixed together. Since both legs were firmly fixed to the bottom of the board, a large space was created 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 ends of one sleeve drawer and the other leg are removably connected via a rear curtain plate, and attachment holes are provided in the upper surface of the one leg and the upper surface of the sleeve drawer. A mounting device in which a recess is formed and a locking piece is locked in each of the mounting holes is removably mounted, the lower surface of the top plate is placed on the upper surface of the mounting device, and the mounting holes in the lower surface of the top plate are placed on the top surface of the mounting device. The present invention proposes a configuration in which a mounting pin protruding upward from the mounting device is engaged with the mounting pin.

According to this configuration, although the top plate cannot be removed upwardly relative to the legs and the sleeve drawer, the relative lateral movement of the mounting pin in the mounting device and the mounting hole on the bottom surface of the top plate makes it impossible to remove both. Since they are engaged with each other, the top plate tends to shift laterally with respect to the top surface of the legs and sleeve drawer due to looseness between the mounting pin and the mounting hole, and it is difficult to mount the legs at right angles to the bottom surface of the top plate. Further, due to the lateral deviation of the legs with respect to the bottom surface of the top plate, the left and right spacing between the left and right legs in the front and rear positions is also not constant.

Therefore, unless the rigidity of the mounting device is increased and the strength of the mounting device is also strong, when the top plate is held and moved from side to side, the attachment part between the top end of the legs and the bottom surface of the top plate will be bent greatly. There was a problem that the verticality of both legs could not be maintained when force was applied.

The present invention aims to solve the above problems.

[Means for solving problems]

Therefore, in the present invention, in a desk that is arranged so that the left and right end surfaces of the desk top are in contact with the inner surfaces of a pair of left and right legs, both the legs and the top are detachably attached. The main body of the mounting device is sandwiched between the left and right side end surfaces of the top plate and the inner surface of the legs, and the horizontal plate protrudes laterally from the inner side of the legs to support the lower surface of the top. The vertical plate of the main body is provided with removable locking claws on the inner surface of each leg, while the horizontal part of each main body is provided with a lower surface of the top plate by dropping the top plate. A removable fixture is provided which engages with and prevents it from coming off upwards.

[Functions and effects of the idea]

With this configuration, when the locking claws of the vertical plate on the main body of the mounting device are engaged with the inner surface of each leg, the vertical plate is attached to the inner surface of each leg and the left and right end surfaces of the desk top. It is held between the In this state, the horizontal portion of the main body protrudes from the inner surface of the leg in a so-called cantilevered manner and supports the lower surface of the top plate.

Therefore, with the vertical plate of the main body in the mounting device in between, the left and right end surfaces of the top plate and the inner side surfaces of the legs face each other, and in this state, the top board is held upward by the fixing metal fittings of the main body in the mounting device. Since it is made impossible to pull out, the legs are arranged along the left and right end surfaces of the top plate, and the legs can be placed at right angles to the top plate, and the parallelism of the left and right legs can also be adjusted. can be secured.

In this way, the present invention has a structure in which the mounting device is detachable from both the legs and the top plate, so that the desk can be compactly packed and transported after being disassembled into the flat top plate and legs. Although it can be easily assembled by the user on site, it also ensures the perpendicularity between the legs and the top plate and the parallelism of both the left and right legs when installed. This has the effect that there is no looseness between the mounting device and the body, and the mounting device can be made more compact.

〔Example〕

Next, an embodiment of the present invention will be described based on the drawings. In the drawings, 1 is a top plate that is rectangular in plan view;
Reference numeral 2 indicates a thick plate-like leg body that is rectangular in side view, and 3 indicates a rear curtain plate that is rectangular in side view.

The top plate 1 has a flat downward U-shaped cross section with the front and rear ends bent downward, and a plurality of left and right longitudinal reinforcing members 4, 4 are stretched on the lower surface of the top plate 1.
A total of four insertion holes 6 or recesses for a mounting device 5, which will be described later, are formed at both left and right ends of the front and rear reinforcing members 4, 4.

Positioning holes 8a, 8 are provided in the lower horizontal portion 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, spaced apart by a dimension l1 in the front and rear directions.
Drill holes b, 8c, and 8d.

The rear curtain plate 3 has vertical reinforcing members 10, 10 fixed to the left and right sides of a main body having a flat U-shape in cross section, and each of the vertical reinforcing members 10, 10 has a longitudinal dovetail groove 11 that opens outward. The dovetail grooves 11 are provided so as to be inserted vertically, and a contact plate 12 is fixed to the upper end of each dovetail groove 11. Furthermore, a support fitting 14 is fixed to the upper end of one of the vertical reinforcing members 10 for fixing the base of a lamp post extending upwardly from the top plate 1.

The left and right legs 2, 2 are plate-shaped or have a structure in which the upper part of each leg 2 is connected by a horizontal member across the front and rear ends.
At the rear of the inner surface of the
5, and dovetail grooves 11, 11 on the left and right sides of the rear curtain plate 3 toward the upper ends of both vertically elongated protruding strips 15, 15.
It is designed to be inserted and fitted.

At the upper positions of the inner surfaces of the left and right legs 2, 2, a vertical plate 2 of a mounting device 5, which will be described later, is attached to the inner surfaces.
A reinforcing plate 28 whose surface faces the recess 27 is provided with a pair of front and rear inverted L-shaped locking grooves 16, 16 separated from each other by a predetermined dimension l2. Two pairs of holes are made at appropriate distances in the front and back.

Each of these inverted L-shaped locking grooves 16 has a wide rectangular upper part and has a long groove part 17 below one side, and the downward locking groove protrudes from the vertical plate 29 of the main body 19 of the mounting device 5 at the 17 long groove parts. A retaining pawl 18 is fitted into the retaining pawl 18, and the retaining pawl 18 is configured to be able to engage with the wide rectangular portion at the top by shifting the retaining pawl 18 laterally.

The long groove portions 17, 17 in the front pair of locking grooves 16, 16 are located at the rear position, and the long groove portions 17, 17 in the rear pair of locking grooves 16, 16 are located at the rear position.
Place it so that it is in the front position.

The mounting device 5 is interposed between the left and right ends of the top plate 1 and the inner surfaces of the legs 2, 2, and by dropping the top plate 1 between the legs 2, 2 from above,
It supports and engages with the top plate 1, and is configured so that the top plate 1 cannot be moved in the vertical, horizontal, and front/rear directions in a normal state.

Body 19 of the attachment device 5 in the illustrated embodiment
is rectangular in plan view, and has an L-shaped cross section consisting of a horizontal part that supports the lower surface of the top plate 1, and a vertical plate 29 held between the inner side surface of the leg and the side end surface of the top plate 1, The vertical plate 29 has the pair of locking grooves 1.
A pair of downward locking claws 1 in the front and rear that engage with 6 and 16
8 and 18 to protrude outward.

The horizontal part of the main body 19 is a part that supports the lower surface of the top plate 1, and the base of the fixing fitting 20 is moved forward and backward in the direction of the locking claw 18, etc. in a substantially horizontal direction, into the square hole 31 of the guide 30 fixed to the other side. It can be freely inserted and inserted, and the spring 21 is biased in the projecting direction.

The tip of the fixing fitting 20 is formed into a wedge shape with an upper inclined surface 22, and each engaging portion 23 at both left and right ends of the lower surface of the top plate 1 (for example, the lower horizontal portion 24 of the side edge plate 7)
The tip of the spring 21 is in contact with the upper inclined surface 22.
The fixing fitting 20 is moved backward against the force, and the engaging part 23
When the tip of the top plate 1 is below the fixture 20, the fixture 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 horizontal portion of the main body 19 of each mounting device 5, a truncated conical positioning projection 25 that projects upward is provided. 8a, 8b, 8c, and 8d so that the top plate 1 cannot be moved in the front-rear direction and left-right direction.
That is, by shifting the main body 19 of the attachment device 5 in the front position forward along the inner surfaces of the legs 2, 2, and moving the main body 19 of the attachment device 5 in the rear position backward,
A pair of downward locking claws 18, 18 on the main body 19 of each mounting device 5 connects the locking grooves 16, 18 of each leg 2,
At this position, the front-rear dimension l1 between the positioning protrusions 25, 25 on the front and rear main bodies 19, 19 in a plan view corresponds to the positioning hole 8a at the front-rear position on the lower surface of the top plate 1. 8
The dimension l1 between b and the dimension l1 between 8c and 8d are made to be equal.

With this configuration, first, when the vertically elongated protruding strips 15, 15 on the rear inner surfaces of the left and right leg bodies 2, 2 are fitted into the dovetail grooves 11, 11 on both the left and right ends of the rear curtain plate 3, the upper ends of the dovetail grooves 11, 11 are fitted. The vertically elongated protruding strips 15, 15 are fitted into the lower surfaces of the abutment plates 12, 12 until their upper ends abut,
The left and right legs 2, 2 and the rear curtain plate 3 can be arranged in a U-shape in plan view without the rear curtain plate 3 being lowered any further. Next, when attaching the four attachment devices 5, 5, 5, 5 to the inner surfaces of the left and right legs 2, 2, the one in the front position is moved forward, and the one in the back position is moved backward. The device 5 cannot be removed from the leg body 2, and in this state, the front and rear attachment devices 5,
The front-to-back dimension between the protrusions 25, 25 of No. 5 is l1.
If the top plate 1 is dropped onto this as shown in FIG. 15, the protrusions 25, 25, 25, 25 will fit into the positioning holes 8a, 8b, 8c, 8d and become immovable back and forth and left and right. At the same time, each fixing member 20 engages with the engaging portion 23 and cannot be removed upward.

In addition, a pair of front and rear inverted L-shaped locking grooves 16, 16, 16, 16 in which the front and rear pair of downward locking claws 18, 18 are fitted in the main body 19 of the mounting device 5 are as follows.
When arranged so that the long grooves 17, 17 in the front pair of locking grooves 16, 16 are in the front position, and the long grooves 17, 17 in the rear pair of locking grooves 16, 16 are in the rear position. , while moving the main body 19 in the front position backward, contrary to the above embodiment,
By moving the main body 19 in the rear position forward, each attachment device 5 becomes unable to be detached from the leg body 2 in the same manner as described above.

Protrusions 2 of the front and rear mounting devices 5, 5 in this state
If the longitudinal dimension between 5 and 25 is l1, the protrusions 25, 25, 2 on the entire main body 19
5, 25 are positioning holes 8a in the top plate 1;
8b, 8c, and 8d so that they cannot be moved back and forth, left or right, and each fixing member 20 engages with the engaging portion 23 and cannot be removed upward.

In addition, the engagement direction between the fixing bracket 20 in each mounting device 5 and the engagement portion 23 on the underside of the tabletop 1 is not limited to when the tip of the fixing bracket 20 moves perpendicularly toward the inner surface of the leg 2 as in the illustrated embodiment, but may be related so that it engages when it moves in the opposite direction, or when it moves approximately parallel to the inner surface of the leg 2.

Furthermore, upper and lower longitudinal dovetail grooves 11 are provided on the rear inner surfaces of the left and right leg bodies 2, 2, while vertically elongated projecting strips 15 that are fitted into the dovetail grooves 11 are provided at both left and right ends of the rear curtain plate.
may be provided, but these are not the gist of the present invention.

Further, in the present invention, as shown in FIGS. 17 and 18, the rear curtain plate 3 is formed into a frame structure by left and right and upper and lower members, and front and rear cover plates 34, 35 are provided on the front and rear surfaces of the frame structure. is removably attached within the frame structure.
Tray 3 that stores wiring cords for OA equipment
Needless to say, it can also be applied to a configuration including 3, 33, and 33.

As described above, the present invention provides a desk in which the left and right end surfaces of the desk top plate are brought into contact with the inner surfaces of a pair of left and right legs, and the main body of the mounting device is attached to and detached from the inner surfaces of both the left and right legs. While it can be locked freely,
A device for attaching a top plate to a desk, wherein the main body is provided with a removable fixing metal fitting that engages the lower surface of the top plate when the top plate is dropped and prevents the top plate from coming off upward, and thereby, At the factory, the two flat legs, one flat top plate, and at least a pair of left and right mounting devices, which are the components of the desk, are manufactured separately, and these can be packaged separately or together. It can also be very compact when transported.

In addition, when assembling, after locking the main body of the mounting device to the inside surfaces of both the left and right legs, simply drop the top board so that the left and right end surfaces of the top plate are in contact with the inside surfaces of both the left and right legs. They are often easy to assemble and disassemble on-site by the consumer. Moreover, when the top plate and the left and right legs are assembled, the vertical plate of the main body is inserted between the left and right end surfaces of the top plate and the inner surfaces of the left and right legs, so that the top plate and the legs are held together. The main body of the mounting device does not wobble when mounted with the

Furthermore, the left and right end surfaces of the top plate and the inner surfaces of the legs can be kept parallel, and the perpendicularity of the legs to the top plate and the parallelism of both the left and right legs can be maintained. The structure will also become stronger.

In addition, by providing positioning holes and protrusions on the mounting body and the bottom surface of the top plate, it is possible to eliminate misalignment of the mounting position between the top plate and the legs, and
If a specific relationship is established between the locking claws on the attachment body and the locking grooves on the inner side surface of the leg body, it is possible to easily prevent the top plate from separating from the leg body.

If the rear end of the top plate is placed above the insertion point between the left and right legs and the rear curtain plate, the rear curtain plate cannot be removed from the legs unless the top plate is removed, which will further improve the structure of the desk. Become strong.

[Brief explanation of the drawing]

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, Fig. 8 is a side view of the left leg, Fig. 9 is a plan view, Fig. 10 is a sectional view taken along the - line in Fig. 8, Fig. 11 is a plan view of the mounting device, Fig. 12 is a front view, Fig. 13 is a right side view, and Fig. 14 is a rear view. FIG. 15 is a plan view showing the assembled state of the curtain board and the left and right legs, FIG. 17 is a plan view of another embodiment, and FIG. 18 is a sectional view taken along the - line of FIG. 17. 1... Top plate, 2, 2... Legs, 3... Rear curtain plate,
8a, 8b, 8c, 8d...positioning holes, 11...
... Dovetail groove, 15 ... Longitudinal protruding strip, 5 ... Mounting device, 19 ... Main body, 29 ... Vertical plate, 18, 18
...Latching claw, 20...Fixing metal fitting, 21...Spring,
22... Upper inclined surface, 23... Engaging portion, 25, 2
5, 25, 25...Protrusion.

Claims (1)

[Scope of utility model registration request] In a desk that is arranged so that the left and right end surfaces of the desk top plate are in contact with the inner surfaces of a pair of left and right legs, the main body of the mounting device for detachably attaching both the legs and the top plate, Consisting of a vertical plate sandwiched between the left and right side end surfaces of the top plate and the inner side of the legs, and a horizontal plate part that projects laterally from the inner side of the legs and supports the lower surface of the top plate, The vertical plate of the main body is provided with a removable locking claw on the inner surface of each of the legs, while the horizontal part of each main body is provided with a locking claw that engages with the lower surface of the top plate by dropping the top plate, and A device for attaching a top plate to a desk, characterized in that it is provided with a fixing metal fitting that can be freely engaged and detached to prevent it from coming off upwardly.