JP3001451U - desk - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a desk in which the top plate and legs can be easily assembled. [Structure] The top plate 1 is arranged on the leg portion 2, and the screw member 16 temporarily fixed to the top plate 1 is provided with a clearance hole 10 for the screw guide portion 10.
Then, the lower surface of the top plate 1 is brought into contact with the upper surface portion 2c 'of the leg portion 2. In this state, when the top plate 1 is displaced relatively rearward with respect to the leg portion 2, the claw portion 8 on the leg portion 2 side on the rear side is placed on the top plate 1.
Is inserted into the claw insertion port 15 on the side, and the screw member 1 is provided on the front side.
6 slides in the guide hole 10b. Then, by fully tightening the screw member 16 from below with the driver S,
The top plate 1 is fixed to the legs 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a desk including a top plate and legs below the top plate, and more particularly to a desk that is easily attached to the top plate of the legs.

[0002]

[Prior art]

 In a conventional desk, after the female screw holes formed in at least two positions on the lower surface of the top plate, which are usually the front side and the rear side thereof, and the corresponding screw through holes on the upper surface side of the leg are aligned, In most cases, a screw member such as a screw is screwed into and the two are screwed together.

[0003]

[Problems to be solved by the device]

 However, such a screw fastening structure has a drawback that it requires time and effort for tightening the screws both front and rear, which is troublesome. In addition, the top plate is often turned upside down, placed on the floor, and the legs are often attached.Therefore, after the assembly is completed, it is necessary to invert the inverted table so that it is upright. , A fairly large work space is required. Further, in the above-mentioned structure, it is necessary to align the screw through holes on the leg side with the female screw holes on the top plate side, but there is a tendency for misalignment between them, which makes it difficult to tighten the screw member. There was also.

An object of the present invention is to provide a desk in which the legs can be easily aligned with the top plate and the assembling work is easy.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in the desk of the present invention, the top-side insert engaging portion, the leg-side insert engaging portion that slidably engages with the top-side insert engaging portion, the top-side screw engaging portion, and the top-side screw engaging portion. The leg-side screw tightening portion, a screw member having a head portion for tightening the both, and a leg-side screw guide portion for sliding the screw member in the temporarily fixed state are configured as follows.

The top plate side insertion engaging portion is provided on either the front side or the rear side of the lower surface of the top plate. Corresponding to this, the leg-side insertion engaging portion is provided on the same side of the upper surface of the leg portion. These two plug-in engagement parts engage with each other in a sliding manner with relative movement in a direction approaching each other from the displaced position, and connect the top plate and the leg part at corresponding positions. This relative movement is usually in the anteroposterior direction of the top plate and the legs placed in place relative to it.

On the other hand, the top plate side screw threaded portion is provided on the lower surface of the top plate on the side opposite to the top plate side insertion engaging portion. Then, on the side corresponding to this on the upper surface of the leg part, with the head of the screw member temporarily fixed to the screw screw part on the top plate positioned on the lower side, attach the screw leg part to the top plate and the leg part. A screw guide is provided for guiding the relative movement of the. A leg side screw fastening part is provided at the end of the screw guide part, and the screw member facing the top plate screw engaging part from below is fully tightened after the relative movement (slide), and the head part is Fasten the leg side screw fastening part to the top plate side screw engaging part.

In a mode in which the screw guide portion is provided with an escape hole, the head portion of the screw member is inserted through the escape hole.

One of the top plate side insertion engagement portion and the leg portion side insertion engagement portion is a claw insertion port, and the other is a claw portion inserted into the claw insertion port by the relative movement of the top plate and the leg portion. be able to .

In the present invention including the legs on the lower portion of the top plate, a mode in which a sleeve box is provided in addition to the legs on the lower portion of the top plate is included, and the sleeve box can be assembled as follows.

The top board side insertion engagement portion is provided on the rear side of the lower surface of the top board, and correspondingly, the sleeve box side insertion engagement portion is provided on the rear side of the upper surface of the sleeve box. These plug-in engaging parts are slidably engaged with each other with relative movement in the directions approaching each other from the displaced position, and the rear part of the sleeve box is fixed to the top plate. This relative movement is generally in the front-back direction of the top plate.

On the other hand, a top plate side clamped portion is provided on the front side of the lower surface of the top plate, and correspondingly, a sleeve box side clamped portion is provided on the front side of the upper surface of the sleeve box. The sleeve box is provided with a fulcrum imparting portion for clamping the clamped portions on the top plate side and the sleeve box side to each other, and the clamped portions are clamped by using a clamp member, whereby the front surface of the sleeve box is clamped. The part is fixed to the top plate. In this clamp member, the clamp acting portion on one side of the fulcrum applying portion opposes the top plate side clamped portion from above, and an upward load is applied to the load applying portion on the opposite side of the fulcrum applying portion. As a result, the clamp acting portion presses the top plate-side clamped portion against the sleeve box-side clamped portion to establish a clamped state. The load applying portion of the clamp member is fixed to the top plate or the sleeve box by the lock member, and the lock member maintains the clamp member in the clamped state.

The desk of the present invention further comprises a plurality of top plate assemblies, at least one of which is a leg part, at a lower portion of the top plate at predetermined intervals, and is connected between the top plate assemblies so that the desk rear space is A mode in which a curtain plate covering the space is provided is also included. Here, as the top plate assembly other than the legs, there is a sleeve box or the like. The curtain plate can be connected to the top plate assembly as follows.

A connecting protrusion is provided on one (eg, leg) of the curtain plate and the top plate assembly (leg or the like). The connecting protrusion has a head portion on the tip side and an engaging base portion thinner than the head portion on the base end side. On the other hand, on the other side (for example, the curtain plate) of the curtain plate and the top plate assembly, the protrusion insertion portion is formed in the shape of a hole or a groove. The protrusion insertion portion includes an inlet portion into which the connecting protrusion portion is inserted, and a guide portion formed from the inlet portion with a width narrower than the head portion. The guide portion slides the curtain plate relative to the top plate assembly to allow the engaging base portion of the connecting projection portion to enter, and abuts the engaging base portion at the end thereof. Further, a stopper portion is provided near at least one of the connecting protrusions. The stopper portion is arranged on a member (for example, a leg portion) on the side where the connecting protrusion is provided, and near the end of the sliding movement of the curtain plate, a stopper engaging portion formed on the other member (for example, the curtain plate). And plays a role in blocking the movement of the curtain plate.

[0015]

[Action and effect]

 In the desk of the present invention, one side of the leg portion is slidably engaged with the top plate by the insertion engaging portion based on the relative movement with the top plate. On the other side, a screw member that has been temporarily fixed to the top plate is slid in the screw guide portion by the relative movement and then fully tightened to complete the fixing of the leg portion and the top plate. As a result, the tightening by the screw member is required only at one of the front part and the rear part of the leg, and the number of assembling steps is reduced.

Further, the top plate and the legs are positioned by the insertion engaging portion, and on the screw fastening portion side, the screw member in the temporarily fixed state is inserted into the screw guide portion for positioning. Therefore, it is easy to align the legs with the top plate, and as a result, the assembly can be performed easily. Also, after placing the top plate on the legs and sliding them relative to each other so that the insertion engaging part and the screw guide part are in the engaged state, by fully tightening the screw member from below, the legs are fixed on the floor. It has the advantage that it can be assembled even when it is upright, and it does not take up space for assembly.

Further, in addition to such an insertion type and screw tightening type fixing structure between the top plate and the legs, a fixing structure using both the insertion type and the clamp type for the top plate and the sleeve box is adopted. As a result, the top plate, legs and sleeve box can be easily assembled, and the ease of assembling is improved by using the clamp type in which it is difficult to screw-fasten the sleeve box and top plate.

Furthermore, in the overall assembly in which the curtain plate is also attached to the top plate, legs, sleeve box, etc., the connecting projection and the projection insertion portion are slid to assemble the curtain plate to the legs, sleeve box, etc. By adopting a structure that fits into the system and prevents the movement of the curtain plate by the stopper, easy assembly and secure fixing including the curtain plate can be achieved.

[0019]

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an exploded perspective view of the OA desk D. This OA desk D has a top plate 1, legs 2 that support it on the left side, and a sleeve box 3 that is attached to the lower right side. Furthermore, the back portion of the desk D has legs 2 and a sleeve box. A curtain plate 4 which is connected to the inside from 3 and closes the rear space of the desk D is attached. Further, two suspension rails 5 are mounted on the lower surface of the top plate 1 close to the inner surfaces of the legs 2 and the sleeve box 3, and a drawer 6 can be inserted into and removed from the suspension rail 5 in the front-rear direction. It is supported.

The leg portion 2 is a hollow body entirely formed by bending or welding a steel plate, and has a top plate supporting portion 2c extending along a side edge portion of the top plate 1 at an upper portion thereof and a lower portion at a lower portion thereof. Has a ground contact portion 2d which is in contact with the floor surface. In addition, a pedestal portion 2e that rises vertically is provided on the rear side of the ground contact portion 2d, and is formed in a U shape with its rear end closed as a whole.

As shown in the plan view of FIG. 2, a punching portion 7 is formed behind the upper surface 2 c ′ of the top plate supporting portion 2 c formed in a substantially flat shape, and a tongue formed inside the punching portion 7 is formed. The claw portion 8 serving as the leg-side insertion engaging portion is formed by bending the curved portion upward. The claw portion 8 has a side surface shape extending obliquely upward from the rear side as shown in FIG.

On the other hand, a projecting portion 9 that protrudes inward is formed at the front part of the top plate supporting portion 2c, and a screw guide portion 10 is formed so as to straddle this projecting portion 9 and the upper surface 2c '. ing . The screw guide portion 10 has a circular escape hole 10a provided on the front side and an elliptical guide hole 10b provided on the rear side, which are connected to each other, and is formed into a keyhole shape as a whole. .

On the other hand, as shown in FIG. 4, a hollow front edge reinforcing frame 11 and a hollow rear edge reinforcing frame 12 extending in the lateral direction are formed on the back surface of the top plate 1, respectively. Further, inside the edge reinforcing frames 11 and 12, a rear lateral reinforcing frame 13 and a front lateral reinforcing frame 14 are provided. Of these, a rectangular claw insertion opening 15 (see FIG. 3) is formed on the side surface of the rear lateral reinforcing frame 13 as a top plate side insertion engaging portion in correspondence with the claw portion 8 of the leg portion 2. . On the other hand, on the lower surface 14a of the front horizontal reinforcing frame 14, a screw hole 14b is formed as a top-side screw screwing portion corresponding to the screw guide portion 10 of the leg portion 2, and the screw member 16 is temporarily provided therein. It is supposed to be stopped.

As shown in FIG. 5, the top plate 1 is placed on the leg portion 2, and the screw member 16 (screw head 16a: see FIG. 7) is inserted into the escape hole 10a of the screw guide portion 10, The lower surface of the top plate 1 is brought into contact with the upper surface portion 2c 'of the leg portion 2. In this state, when the top plate 1 is relatively displaced rearward with respect to the leg part 2, the claw part 8 on the leg part 2 side enters the claw insertion port 15 on the top plate 1 side on the rear side and the front side on the front side. The screw member 16 slides in the guide hole 10b. Then, as shown in FIG. 3, the lower end edge of the claw insertion port 15 is pushed into the base end of the claw portion 8 to lock the top plate 1, and thereafter, as shown in FIG. By fully tightening, the top plate 1 is fixed to the leg portion 2. At this time, since the claw portion 8 presses the lower end edge of the claw insertion port 15 at its base end portion, rattling of the top plate 1 in the upper and lower directions is prevented.

FIG. 6 shows a side view of the top plate 1 and the legs 2 after the completion of sliding (before final tightening), and FIG. 7 shows a cross section taken along the line AA of FIG. The screw member 16 has a head portion 16a and a screw leg portion 16b. The head portion 16a faces the guide hole 10b from below, and the screw leg portion 16b is in contact with the end of the guide hole 10b. Then, the screw member 16 is tightened to the weld nut 17, for example. The weld nut 17 is welded to the back side of the front lateral reinforcement frame 14 of the top plate 1. Further, the vicinity of the end of the guide hole 10b of the leg portion 2 functions as a leg side screw fastening portion.

The claw insertion port 15 may be formed on the reinforcing frame of the top plate 1 as in the present embodiment, or may be formed by bending a metal plate or a bar member as a separate component and fixed to the lower surface of the top plate. Yes. Alternatively, the claw portion 8 may be configured to extend from the front side to the rear side, and the top plate 1 may be set on the leg portion 2 and then pulled toward the front side for engagement. On the other hand, the claw portion 8 may be provided on the top plate 1 side and the claw insertion port 15 may be provided on the leg portion 2 side. Further, the fastening portion using the screw may be arranged rearward, and the front portion may be used as the insertion engaging portion.

Next, a mounting structure of the sleeve box 3 to the top plate 1 will be described. As shown in the plan view of FIG. 8, the upper portion of the main body 3a of the sleeve box 3 is open, and a rear plate member 18 for fixing the sleeve box 3 to the top plate 1 is provided at the rear portion thereof. 9 is an enlarged view of the rear plate member 18, and FIG. 10 is a sectional view taken along line BB of FIG. The front and rear parts of the rear plate member 18 are bent downward as shown in FIG. 10 to impart bending strength in the longitudinal direction of the member, and the rear folding surface is the inner surface of the rear sleeve box body 3a. Is welded to. The rear plate member 18 is provided with U-shaped notches 19 at two positions on the left and right of the front side of the upper face as the sleeve box side insertion engaging parts so as to cover the bent front part. As shown in FIG. 10, recesses 19a are formed on both side edges.

On the other hand, as shown in FIG. 11, the rear edge reinforcing frame 11 on the back surface of the top plate 1 corresponds to the two cuts 19 (two sets each on the left and right) (that is, a total of 4 places). A metal fitting mounting hole 20 is formed. Two sets are provided on the left and right sides so that the sleeve box 3 can be attached to either the left side or the right side. The metal fitting mounting hole 20 is provided with an insertion hole 20a and a fixing hole 20b following the insertion hole 20a.

A fitting 21 having a shape shown in FIG. 12 is inserted into the mounting hole 20 as a protrusion to form a top-side insertion engaging portion. The plug-in fitting 21 includes an upper flange 21a, an intermediate flange 21b and a lower flange 21c. After being inserted into the insertion hole 20a from below, the groove portion 21d between the upper flange 21a and the intermediate flange portion 21b is pushed into the fixing hole 20b. It is set on the lower surface of the rear edge reinforcing frame 11 so as to keep the fixed state without sliding out from the fixing hole 20b.

The top plate 1 with the insert fitting 21 mounted thereon is placed on the sleeve box 3 so that the insert fitting 21 is positioned in front of the cut portion 19, and the top plate 1 is pushed rearward in this state. The edge portion of the cut portion 19 is inserted into the groove portion 21e between the intermediate flange 21b and the lower flange 21c of the insertion fitting 21, and the lower surface of the top plate 1 and the rear portion of the sleeve box 3 are engaged in the state as shown in FIG. To do. Here, since the recesses 19a provided on both side edges of the cut portion 19 press the lower flange 21c of the insert metal fitting 21 from above, rattling of the top plate 1 in the vertical direction is prevented.

It is also possible to form the opening of the U-shaped notch 19 toward the rear side. In this case, the top plate 1 is set on the leg portion 2 and then pulled toward the front side to be engaged. Further, the cutout portion 19 may be formed on the top plate side, and the metal fitting 21 may be arranged on the leg portion 2 side. In this case, the metal fitting 21 is fixed to the upper surface of the sleeve box 3 upside down as compared with the case where it is provided on the top plate 1 side.

As the insertion engaging portion between the sleeve box 3 and the top plate 1, a combination of the claw portion 8 and the claw insertion port 15 similar to that of the leg portion 2 and the top plate 1 can be used. On the contrary, the insertion engaging portion of this embodiment can also be used as an insertion engaging portion between the leg portion 2 and the top plate 1.

On the other hand, as shown in FIG. 8, a front plate member 22 is provided on the front side of the sleeve box 3. This plate-shaped member 22 has an external appearance as shown in FIG. 14, and as shown in FIG. 15, a sleeve box side hole portion for inserting a claw portion of a later-described clamp member to the front part left and right and slightly to the center. 23 is formed. FIG. 16 shows a cross section taken along the line CC of FIG. 15. The cross-sectional shape is such that a downward folded portion 22a is formed at the front end and a concave portion 22b extending in the longitudinal direction of the member is formed at the intermediate portion. Bending strength is added to the direction. The folded-back portion 22a is welded to the front inner surface of the sleeve box body 3a (Fig. 8).

On the other hand, as shown in FIG. 11, a top plate side hole 24 corresponding to the sleeve box side hole 23 is formed in the front part of the back surface of the top plate. The top plate 1 is arranged such that the top plate side through hole 24 is located directly above the sleeve box side hole part 23 when the rear part thereof is pushed into the rear part of the sleeve box 3 by the method described above. . Two sets of top plate side through holes 24 are provided on the left and right sides so that the sleeve box 3 can be attached on either the left or right side.

Then, in this state, the clamp member 25 shown in FIG. 17 is mounted from below the front plate member 22 of the sleeve box 3. The clamp member 25 has three clamp claw portions 26 on the left and right sides of the front end portion thereof and slightly to the center of the front end portion thereof, and these function as a clamp acting portion. The forming intervals of the clamp claws 26 match the forming intervals of the sleeve box side hole 23 and the top plate side hole 24, and as shown in FIG. 19, the three clamp claws 26 are respectively formed. After penetrating the corresponding sleeve box side hole portion 23 and top plate side hole portion 24 from the lower side, it is hooked in the vicinity of the opening of the top plate side hole portion 24.

When an upward load is applied to the rear end of the clamp member 25 in this state, the portion of the member 25 closer to the base end than the clamp claw portion 26 is located behind the sleeve box side hole 23 and the plate member 2 2 The lower surface of the top plate side hole 24 is abutted against the lower surface of the top plate, and a downward force is applied to the clamp claw part 26 by the lever principle with the contact part (that is, the fulcrum imparting part) as a fulcrum. The side clamped portion) is pressed against a corresponding position (sleeve box side clamped portion) of the front plate member 22 on the upper surface of the sleeve box and clamped. The clamp member 25 is pushed up until it comes into contact with the lower surface of the front plate member 22, but at this time, the recess 25a is formed in the clamp member 25 along its longitudinal direction so as not to interfere with the recess 22a formed in the plate member 22. Is formed, and the recess 22a of the plate member 22 is accommodated in this recess 25a.

Further, as shown in FIG. 17, a rotatable lock member 27 is provided at the rear end of the clamp member 25. The lock member 27 is a long plate-shaped material that is folded in two. The open side of the lock member 27 faces the clamp member 25 side, and one end of the lock member 27 is attached to the rear end of the clamp member 25 with a rivet 28. This is used as a fulcrum and can be rotated back and forth. When the clamp member 25 is pushed up to clamp the lower surface of the top plate 1 and the upper surface of the sleeve box 3, the lock member 27 is raised as shown in FIG. Make them parallel and push up with the end opposite to the pivot. As a result, the distance from the fulcrum applying portion during clamping is increased and the leverage can be increased, so that the clamping member 25 can be pushed up with a small force. When the clamp member 25 is pushed up to the lower surface of the front plate member 22 of the sleeve box 3 to be in the clamped state, the lock member 27 is rotated so as to be tilted toward the front side, and the clamp member 25 and the front side are opened on the open side. The clamped state of the clamp member 25 is maintained by sandwiching and stopping the rear end of the plate member 22. Here, in order to prevent the head of the rivet 28 from interfering with the plate member 22, a notch 22c is formed at the rear end edge of the plate member 22 as shown in FIGS.

The locking member 27 can also be provided on the front plate member 22 of the sleeve box 3. Further, in place of the rotary lock member 27, for example, a hook portion formed on the clamp member 25 is hooked on a lock pin-shaped lock member mounted on the upper surface of the sleeve box or the lower surface of the top plate to remove the clamp member 25. It can also be fixed.

The curtain 4 is attached so as to cover the rear space between the leg 2 and the sleeve box 3 attached as described above (see FIG. 1). As shown in FIG. 5, an upper connecting protrusion 29 and a lower connecting protrusion 30 are fixed to the rear right side surface of the leg 2 by using a screw member 31 (see FIGS. 22 and 23). Further, as shown in FIG. 1, upper and lower connecting protrusions 29 and 30 are similarly attached to the left side surface of the sleeve box 3. The lower connecting protrusion 30 has a screw through hole 30a shown in FIG. 20, a large-diameter head portion 30b on the distal end side, a small-diameter engaging base portion 30c on the proximal end side, and an intermediate portion therebetween. A taper portion 30d having an outer diameter that decreases toward the base portion 30c is provided.

On the other hand, as shown in FIG. 21, the upper connecting protrusion 29 has screw through holes 29a, a head portion 29b, an engaging base portion 29c, and a taper portion 29d similar to those of the lower connecting protrusion 29. However, a plate-shaped stopper portion 29f is integrally united with the connecting protrusion so as to extend downward. The stopper portion 29f extends slightly narrower than the outer diameter of the engaging base portion 29c, and its tip (lower end) is formed in an arc shape. Both the connection projection 29 of the stopper integrated type and the connection projection 30 of the single body can be made of a resin molded body.

On the other hand, as shown in FIG. 5, the curtain plate 4 is one in which both sides of the steel plate are folded back toward the inside of the desk to form side surfaces 4a, and auxiliary ribs 4b are provided on the upper and lower sides. Thus, an upper insertion hole 32 and a lower insertion hole 33 are formed as protrusion insertion portions above and below both side surface portions 4a, respectively. As shown in FIGS. 22 and 23, the insertion holes 32 and 33 have inlet holes 32a and 33a, respectively, which are sized to allow the heads 29b and 30b of the connecting protrusions 29 and 30 to pass therethrough, respectively. The guide holes 32b and 33b are formed so as to be connected to the upper side and the lower side, respectively, and are vertically symmetrical with respect to the inlet holes 32a and 33a. The guide holes 32b and 33b are provided above and below so that the curtain plate 4 can be mounted upside down. As shown in FIG. 24, at the entrance hole portions 32 a and 33 a of the insertion holes 32 and 33, the connecting projections 29 and 30 fixed to the inner surface of the leg portion 2 are passed, and the curtain plate 4 is slid downward. As a result, the curtain plate 4 is supported by the connecting protrusions 29 and 30.

That is, as shown in FIG. 22, the upper end of the upper guide hole portion 32 b of the curtain plate 4 contacts the engaging base portion 29 c of the connecting protrusion portion 29 of the leg portion 2 (or the sleeve box 3). As shown in FIG. 23, the guide hole portion 33b and the engagement base portion 30c are similarly engaged on the lower side. Then, at this time, as shown in FIG. 22, in the upper connecting projection 29, the lower side of the stopper portion 29f is fitted into the lower end portion of the lower guide hole portion 32b, and the upper side of the curtain plate 4 is moved upward. When the movement is blocked and the above-described engagement bases 29c and 30c prevent the downward movement, the curtain plate 4 is supported substantially immovably in the vertical direction.

Further, when the curtain plate 4 is assembled in this way, the pull-down force is applied to the curtain plate 4 with the lower ends of the guide hole portions 32b and 33b being engaged with the tapered portions 29d and 30d of the connecting projections 29 and 30, respectively. The effect of the taper is to pull the curtain plate 4 toward the engaging bases 29c and 30c.

The stopper portion 29f can be provided not on the upper connecting protrusion portion 29 but on the lower connecting protrusion portion 30, or can be provided on both sides of the upper and lower connecting protrusion portions 29 and 30. It is possible.

In addition to this, as the stopper portion, various forms such as a convex portion formed on the side surface of the leg portion 2 by sheet metal working can be used. It is also possible to attach the connecting protrusions 29 and 30 not to the inner surface of the leg but to the rear surface side and correspondingly provide the insertion holes at the left and right edge portions of the front surface of the curtain plate.

Here, even if the curtain plate 4 is turned upside down by the vertically symmetrical insertion holes 32 and 33, the curtain plate 4 can be attached by the same mechanism as described above, but as shown in FIG. Further, the distance from the upper end of the curtain plate 4 to the upper insertion hole 32 is offset so as to be longer than the distance from the lower end of the curtain plate 4 to the lower insertion hole 33. Now, assuming that the curtain plate 4 is turned upside down and attached to the desk from the state of FIG. 5, a space based on the above-mentioned offset is formed between the top plate 1 and the curtain plate 4. Therefore, it is possible to circulate the cords and the like of the OA equipment through this space and to take out the continuous paper for computer printing and the like.

As shown in FIG. 28, it is also possible to form an open inlet portion (32a etc.) and a guide portion (32b etc.) following the inlet portion as to the projection insertion portion. In this case, if the stopper 29f as shown in FIG. 29 in plan view is used, the assembly of the curtain plate 4 becomes smoother.

In the above embodiment, the leg portion 2 is provided on the lower left side of the top plate 1 and the sleeve box 3 is provided on the lower right side, but it is of course possible to mount these on the left and right, and both sides have the leg portions. Alternatively, a sleeve box can be used on both sides. Further, the disk may be a desk in which legs are mounted on both sides of a relatively long top plate, and a sleeve box or the like is mounted in the middle between them in a suspended form or a grounded form.

It is also possible to provide the drawer 6 shown in FIG. 1 on the lower surface of the top plate 1. FIG. 25 shows an example of the drawer suspension rail 5 attached to the lower surface of the top plate. The rail main body 34, two insertion claws 35 at the front upper part thereof, and the rail-side stopper at the rear upper part are shown. It includes an insertion hole 36 and a guide roller 37. The insertion claw portion 35 is inserted into the top plate side insertion hole 38a shown in FIG. 11 as shown in FIG. 26, and the front side of the suspension rail 5 is fixed. On the other hand, on the rear side of the suspension rail 5, the rail-side stopper insertion hole 36 (FIG. 25) is overlapped with the top-plate-side stopper insertion hole 38b (FIG. 11) provided on the lower surface of the top plate 1. A rail stopper 39 as shown in 27 is fitted and fixed.

The rail stopper 39 is made of, for example, plastic or the like, has a mountain shape with an open lower portion, and has a grip portion 39a and a step portion 39b on the open end side. After aligning the stopper insertion hole 36 of the suspension rail 5 with that on the top plate side, if the stopper 39 is pushed in here with elastic deformation in the contracting direction, the stopper 39 elastically returns to its step 39b. The suspension rail 5 is fixed to the top plate 1. It should be noted that if the grip 39a of the stopper 39 is pinched and contracted, it can be removed.

In FIG. 11, a plurality of sets or a plurality of top plate-side insertion holes 38a and top plate-side stopper insertion holes 38b are formed on the back surface of the top plate 1 because the drawers 6 are displaced to the left and right. This is to enable the attachment on the side of and also to attach the drawers 6 having different widths.

As described above, the drawer 6 shown in FIG. 1 is inserted into the two suspension rails 5 attached to the lower surface of the top plate 1. The guide roller 37 (FIG. 25) attached to the suspension rail 5 functions to roll the guide portion provided on the side surface of the drawer 6 to smooth the drawer 6 in and out.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a desk of the present invention.

FIG. 2 is a plan view of the upper surface side of the leg portion.

FIG. 3 is a cross-sectional view showing an insertion engaging portion between a leg portion and a top plate.

FIG. 4 is an exploded perspective view showing how the legs and the top plate are attached.

FIG. 5 is an exploded side view showing how the legs, the top plate and the curtain plate are attached.

FIG. 6 is a side view of the legs, the top plate, and the curtain plate in an attached state.

7 is a cross-sectional view taken along the line AA of FIG.

FIG. 8 is a plan view of the upper surface of the sleeve box.

FIG. 9 is a plan view of a rear plate member of the sleeve box.

10 is a sectional view taken along line BB of FIG.

FIG. 11 is a plan view showing the back surface of the top plate.

FIG. 12 is a component diagram showing a metal fitting for fixing the sleeve box to the rear.

FIG. 13 is a cross-sectional view showing how the rear part of the sleeve box and the top plate are attached.

FIG. 14 is a perspective view showing a front plate member of the sleeve box.

FIG. 15 is a plan view showing a front plate member of the sleeve box.

16 is a sectional view taken along line CC of FIG.

FIG. 17 is a plan view of a clamp member.

FIG. 18 is a side view of FIG.

FIG. 19 is a cross-sectional view showing an attachment form of a sleeve box and a front portion of a top plate using a clamp member.

FIG. 20 is a component diagram of the lower connecting protrusion on the leg portion or the sleeve box side.

FIG. 21 is a part view of the upper connecting protrusion.

FIG. 22 is a view showing a mounting mode of the upper part of the curtain plate.

FIG. 23 is a view showing a mounting mode of the lower part of the curtain plate.

FIG. 24 is an exploded perspective view showing how the curtain plate and the legs are attached.

FIG. 25 is a component diagram of a drawer suspension rail.

FIG. 26 is a side view showing a state in which the suspension rail for the drawer is attached to the top plate.

FIG. 27 is a component diagram of a rail stopper that fixes a hanging rail.

FIG. 28 is an explanatory view showing a modified example of the protrusion insertion portion.

FIG. 29 is an explanatory view showing a modified example of the stopper portion.

[Explanation of symbols]

 1 Top plate 2 Leg part 3 Sleeve box 4 Curtain plate 5 Drawer suspension rail 6 Drawer 8 Claw part (leg side insert engaging part) 10 Screw guide part 15 Claw insertion port (top plate insert engaging part) 16 Screw Member 19 Cut portion (sleeve box side insertion engaging portion) 21 Insert metal fitting (top board side insertion engaging portion) 25 Clamp member 26 Clamp claw portion (clamping action portion) 27 Lock member 29, 30 Connecting protrusion 29b, 30b Head Part 29c, 30c Engagement base part 29d, 30d Tapered part 29f Stopper part 32, 33 Curtain board side insertion hole (projection insertion part) 32a, 33a Inlet hole part 32b, 33b Guide hole part

Claims (5)

[Scope of utility model registration request] 1. A desk including a top plate and leg portions below the top plate, the top plate side insertion engaging portion provided on either the front side or the rear side of the bottom surface of the top plate, and the bottom surface of the top plate. A top plate side screw threaded portion which is provided on the opposite side of the top plate side insertion engagement portion and has a head portion screwed from below in its screw leg portion, and an upper surface of the leg portion. A leg side insertion member provided on the side corresponding to the top plate side insertion engaging portion and slidably engaged with the top plate side insertion engagement portion with relative movement in a direction approaching each other from a position displaced from the top plate side insertion engagement portion. And a head portion of the screw member, which is provided on the upper surface of the leg portion in correspondence with the top-side screw threaded portion and is temporarily fixed to the top-side screw threaded portion, is located on the lower side. In this state, a screw guide part that guides the screw leg part with the relative movement of the top plate and the leg part, and a screw guide part of the screw guide part. A leg portion that is formed at an end and faces the top plate screw-engaged portion from below, and is fastened from below to the top plate-side screw-engaged portion by the head of the screw member that is finally tightened after the relative movement. A desk characterized by including a side screw fastening part. 2. An escape hole, wherein the screw guide portion is formed on an upper surface of a leg portion, and a head portion of the screw member is penetrated,
The guide hole is provided continuously behind the escape hole to prevent the head portion of the screw member from coming off from the lower side and to allow the screw leg portion to slide.
Desk described. 3. The top plate side insertion engaging portion is a claw insertion opening formed on the back surface of the top plate, and the leg side insertion engaging portion is formed by the relative movement of the top plate and the leg portion. The desk according to claim 1 or 2, which is a claw portion that is inserted into a claw insertion port. 4. A desk including a top plate and leg parts and sleeve boxes below the top plate, wherein the top plate side insertion engaging portion provided on the rear side of the bottom surface of the top plate and the front side of the bottom surface of the top plate. And a top plate side clamped portion provided on the side, and a slide type provided on the rear side of the upper surface of the sleeve box with relative movement in a direction approaching each other from a position displaced from the top plate side inserted engaging portion. The sleeve box side insertion engaging portion that engages with the sleeve box side, the sleeve box side clamped portion provided on the front side of the upper surface of the sleeve box corresponding to the top plate side clamped portion, and the sleeve box side clamped portion. A fulcrum imparting portion for clamping the clamped portions on the top plate side and the sleeve box side to each other, and a clamp acting portion on one side of the fulcrum imparting portion faces the top plate side clamped portion from above. The upward load is applied to the load applying part on the opposite side of the fulcrum applying part. Thus, the clamp acting part presses the top plate side clamped part to the sleeve box side clamped part to bring it into a clamped state, and the load applying part of the clamp member is fixed to the top plate or the sleeve box. A desk according to any one of claims 1 to 3, further comprising: a lock member that maintains the clamp member in the clamped state. 5. A plurality of top plate assemblies, at least one of which is a leg, are provided at a lower side of the top plate at predetermined intervals, and a curtain plate which is connected to the top plate assemblies and covers the desk rear space. A desk provided with one of the top plate assembly and the curtain plate in the form of a protrusion, and a connecting protrusion having a head on the tip side and an engagement base thinner than the head on the base side; On the other side of the top plate assembly and the curtain plate, there is an inlet formed in the form of a hole or a groove in a positional relationship corresponding to the connecting protrusion, and the inlet for inserting the connecting protrusion, and the inlet is narrower than the head. A guide portion that is formed to have a width and that causes the engaging base portion of the connecting protrusion to enter by the relative sliding movement of the curtain plate with respect to the top plate assembly and contacts the engaging base portion at the end thereof. Of the two members of the projection insertion portion and the top plate assembly and the curtain plate, the connection projection portion is The member on the existing side is provided in the vicinity of at least one of the connecting protrusions, and is formed on the member on the side on which the protrusion inserting portion exists among the two members near the end of the sliding movement of the curtain plate. 5. The desk according to claim 1, further comprising: a stopper portion that engages with the stopper engagement portion that is formed to prevent movement of the curtain plate.