JPH0763420B2 - desk - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a desk that can be suitably used in an office or the like.

[Prior Art] Conventionally, in this type of desk, it is general that the left and right legs are joined by a receiving rail and other horizontal rails, and a top plate is placed and fixed on the receiving rail. .

In other words, in the related art, the legs and various crosspieces form a rigid main body, and the top plate is mounted on the main body.

[Problems to be Solved by the Invention] The conventional top plate is designed to be reinforced by the receiving bar. For this reason, unless the many points of the top plate are firmly fixed to the receiving bar, the top plate is apt to warp or bend. Moreover, it is difficult to secure the rigidity of the main body unless the left and right legs are firmly connected to each other by the receiving bar or the like, and it becomes impossible to secure the supporting rigidity of the top plate.

Therefore, the conventional one requires a large number of bolts for connecting the legs to each other and for connecting the top plate and the receiving bar, which causes a problem that it takes a lot of time and labor for assembling and disassembling.

The present invention aims to solve such problems.

[Means for Solving the Problems] In order to achieve the above object, the present invention has a structure in which the top plate can exert rigidity by itself, does not require reinforcement by a receiving bar, and has such rigidity. The top plate is considered as a structural base, and the legs are attached to the top plate so as not to tilt, which is completely different from the conventional one.

That is, the desk according to the present invention comprises a top plate, legs, a taper coupling part, and a claw-shaped engaging part, and the top plate is a metal plate on both upper and lower surfaces of the frame. The leg body has an upward surface to be joined to the lower surface of the top plate, and an arm along the tip edge of the top plate is rigidly attached to the upper end of the leg body. The taper engaging portion comprises a concave taper surface provided on one of the tip edge of the top plate and the arm of the leg, and a convex taper surface provided on the other, By sliding the leg to the use end side with respect to the top plate, the concave taper surface and the convex taper surface can be in close contact with each other, and the claw-shaped engaging portion is the lower surface of the top plate. And a bending hole provided on one of the upward faces of the legs and a hook hole provided on the other side. Is inserted into the hook hole and the leg is slid toward the use end side with respect to the top plate so that the bending claw can be engaged with the hook hole. In this state, the arm is tightly connected to the leading edge of the top plate by a fastener.

As a preferred example of the concave tapered surface and the convex tapered surface,
It is better to set the former in the groove and the latter in the ridge.

Either the bent claw or the hook hole may be on the lower surface of the top plate or on the upper surface of the leg.

As a simple fastener, it is preferable that a screw hole is fixedly provided on the top plate side and a bolt having an arm penetrated therein can be screwed into the screw hole. One bolt for each arm
It is even more desirable to finish with a book.

[Operation] With such a configuration, the upper surface of the leg is attached to the lower surface of the top plate, and in that state, the leg is slid toward the use end side with respect to the top plate. The bending claw of the shape engaging portion engages with the hook hole, the arm of the leg approaches the tip edge of the top plate, and the convex tapered surface of the taper engaging portion abuts the concave tapered surface. In this state, when the arm is tightened to the top plate with the fastener, the convex tapered surface is in close contact with the concave tapered surface so as to come into close contact therewith, and the arm is fixed to the top plate. Since the arm is rigidly attached to the leg, when the arm is strongly connected to the top plate, the leg cannot tilt with respect to the top plate. Moreover, if the arm is fixed to the top edge of the top plate so that the leg cannot move back and forth, the bent claw will not come off the hook hole. Will not be separated.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 14.

This desk includes a top plate 1, legs 2, and a taper engaging portion 3
And a claw-shaped engaging portion 4.

As shown in FIGS. 1 to 3, the top plate 1 has a flash structure in which metal steel plates 12 and 13 are attached to both upper and lower surfaces of a frame body 11. More specifically, the frame 11 is formed by joining a frame member 11a having a U-shaped cross-section open to the inside, a frame member 11b on the use end side, and left and right side frame members 11c. so,
A honeycomb-shaped paper core 14 is arranged inside thereof. Then, steel plates 12 and 13 are respectively attached to the upper and lower surfaces of the frame body 11 and the paper core 14 via an adhesive material, and the frame body 11, the steel plates 12 and 13 and the paper core 14 are formed by pressure bonding. It is joined. A steel material 15 is fixedly mounted on the tip surface of the tip side frame member 11a via a welded joint, and the steel material 15 constitutes the tip edge 1a of the top plate 1. A melamine decorative plate 16 is attached to the upper surface of the upper steel plate 12.

As shown in FIG. 1, FIG. 4 and FIG. 5, the leg 2 includes a base material 21 having an adjuster 21 a, a column 22 standing on the tip of the substrate 21, and a column 22 of the column 22. And a support arm 23 extending from the upper end to the use end side A.
A plurality of spacers 23b are fixedly provided on the upward surface 23a formed on the top surface 23a, and the lower surface of the top plate 1 is brought into close contact with these spacers 23b so that the top plate 1 can be supported. In addition, an arm along the tip edge 1a of the top plate 1 is provided at the tip end upper end of the leg body 2.
24 is installed rigidly. The arm 24 is made of a steel material having a mounting portion 24a integrally formed at the base end, and the mounting portion 24a is attached to the support column 2
2 and the front end surfaces of the supporting arms 23 are rigidly attached by welding.

As shown in FIGS. 1 and 6, the taper engaging portion 3 has a concave taper surface 31 provided on the top edge 1a of the top plate 1 and a convex taper surface 32 provided on the arm 24 of the leg 2. And. Specifically, as shown in FIGS. 7 to 9, the steel material 15 of the top plate 1 is used.
A V-shaped groove is recessed in the groove, and the concave tapered surface 31 is set to the slope of the V-shaped groove. Further, as shown in FIGS. 10 to 12, a protrusion having a trapezoidal transverse cross section is provided on the surface of the arm 24 on the use end side A, and the convex tapered surface 32 is formed on the slope of the protrusion. It is set. These tapered surfaces 31, 32 are arranged at the same height position with the top plate 1 placed on the leg body 2, and from this state, the leg body 2 is slid toward the use end side with respect to the top plate 1. By doing so, the slopes can be brought into close contact with each other.

As shown in FIGS. 2, 4, 5, 13, and 14, the claw-shaped engaging portion 4 includes a bent claw 41 provided on the upward surface 23a of the leg 2 and a top plate. 1 and a hook hole 42 provided on the lower surface. Specifically, metal fittings 43 are fixed to the upper surface 23a of the leg body 2 at two locations, and the bending claws 41 are projected from the metal fittings 43 in pairs to bend the tips toward the use ends. Terra. In addition, the hook holes 42 are formed on the two side frame members 11c of the frame body 2
A pair of holes are formed in pairs at each of the positions, and a lower steel material is formed to expose the hook holes 42 to the lower surface of the top plate 1.
The opening 13a is punched out at 13. Then, the leg body 2 is positioned slightly more distal than the normal mounting position with respect to the top plate 1, and the upward surface 23a thereof is brought into close contact with the lower surface of the top plate 1, whereby the bending claw 41 is made into the hook hole 42. Is inserted into the inner space of the top plate 1 through and the leg 2 is slid from this position to the use end side A with respect to the top plate 1, so that the tip of the bending claw 41 rides on the inner surface of the side frame member 11c. You can get in touch with them.

Then, the engagement state of both the engaging portions 3 and 4 described above is the top plate 1
Are simultaneously obtained by the sliding motion of the polar body 2 with respect to.

Further, as shown in FIGS. 1 and 14, both engaging portions 3,
In a state in which 4 are engaged, the arm 24 is tightly coupled to the tip edge 1a of the top plate 1 by a single bolt 51 serving as a fastener. For this reason, the arm 24 has a bolt insertion hole 24
b is drilled, and a screw hole 15a capable of communicating with the bolt insertion hole 24b at the mounting position is formed in the steel material 15 of the top plate 1. The arm 24 is firmly attached to the tip edge 1a of the top plate 1 by inserting the bolt insertion hole 24b into the taper surfaces 31 and 32 and screwing the bolt 5 into the screw hole 15a. I am able to do that.

Then, the desk having such a structure can be assembled and disassembled very easily.
That is, at the time of assembly, the upper surface 23a of the leg 2 is attached to the lower surface of the top plate 1, and the leg 2 is slid to the use end side with respect to the top plate 1 in this state, whereby the claw-shaped engagement is achieved. The bent claw 41 of the portion 4 is engaged with the hook hole 42, and the leg 2
The arm 24 approaches the tip edge 1a of the top plate 1, and the convex tapered surface 32 of the tapered engaging portion 3 contacts the concave tapered surface 31. When the arm 24 is tightened on the top plate 1 with the bolts 5 in this state, the convex tapered surface 32 comes into close contact with the concave tapered surface 31 so that the arm 24 is fixed to the top plate 1. Since the arm 24 is rigidly attached to the leg body 2, when the arm 24 is strongly connected to the top plate 1, the leg body 2 cannot tilt with respect to the top plate 1. Moreover, by fixing the arm 24 to the tip edge 1a of the top plate 1 so that the leg 2 cannot move back and forth,
Since the bent claw 41 will not come off from the hook hole 42,
The lower surface of the top plate 1 and the upward surface 23a of the leg body 2 are not separated from each other. If the above operation is performed in reverse, the top plate 1 and the leg 2 are disconnected from each other.

In this way, this desk has a structure in which the top plate 1 can exert rigidity by itself, and the top plate 1 is used as a structural base.
Since the leg 2 can be attached to the top plate 1 via the taper engaging portion 3 and the claw-shaped engaging portion 4 so as to be inclinable and not movable back and forth, sufficient strength can be obtained by using only two bolts 5. As a result, there is no need to increase the rigidity by using a large number of bolts as in the conventional case. For this reason, the illustrated desk can be put to practical use as an epoch-making desk in which the number of man-hours for assembling and disassembling is drastically reduced as compared with the conventional desk, and the rattling is extremely small.

In the above embodiment, the steel material 15 is rigidly attached to the top edge 1a of the top plate 1 via a welded joint, and the concave taper surface 31 is set on the steel material 15. However, as shown in FIG. It is also possible for the body 111 to integrally form the concave tapered surface 131.
Further, as shown in FIG. 16, the taper engaging portion has a convex taper surface 232 formed on a ridge provided on the tip edge 201a of the top plate 201,
The concave tapered surface 231 may be formed in a groove provided in the arm 224. Further, the bent claws may be projected on the lower surface of the top plate, and the hook holes may be provided on the upper surface of the leg to form the claw-shaped engaging portion. Besides, the configuration of each unit is not limited to the illustrated example, and various modifications can be made without departing from the spirit of the present invention.

[Advantages of the Invention] In the dessert according to the present invention, as described above, the top plate has a structure capable of exhibiting rigidity by itself, and reinforcement by a receiving bar is not required, and the top plate having such rigidity is used as a structural base. ,
The legs are attached to the top plate via the taper engagement part and the claw-shaped engagement part so as not to tilt or move back and forth, and in that state, the legs are simply tightened and connected to the top edge of the top plate with a fastener. Since it is composed of, the manufacturing and assembling man-hours are drastically reduced as compared with the conventional one, the parts are manufactured in a small amount, the production cost can be reduced, and the rattling can be extremely reduced.

[Brief description of drawings]

1 to 14 show one embodiment of the present invention, FIG. 1 is an overall perspective view, FIG. 2 is a plan sectional view of a top plate without a paper core, and FIG. 3 is III- in FIG. A sectional view taken along line III, FIG. 4 is a plan view of the leg, FIG. 5 is a front view of the same, FIG. 6 is an enlarged view of a taper engaging portion, and FIG. 7 is a steel material provided with a concave taper surface. Partial plan view, FIG. 8 is the same front view, FIG. 9 is a left side view of FIG. 8, FIG. 10 is a plan view of an arm provided with a convex tapered surface, and FIG. 11 is the same front view. FIG. 12 is a right side view of FIG. 11, FIG. 13 is a partial plan sectional view of a top plate showing a claw-shaped engaging portion, and FIG. 14 is a sectional view taken along line XIV-XIV in FIG. Further, FIG. 15 is a partial sectional view showing a frame body according to another embodiment, and FIG. 16 is a side view showing a taper engaging portion according to still another embodiment. 1, 201 ... Top plate, 1a ... Tip edge 2 ... Leg, 3 ... Tapered engaging part 4 ... Claw-shaped engaging part, 5 ... Fastener (bolt) 11, 111 ... Frame Body 12, 13 …… Metal plate (steel plate) 15a …… Screw hole, 23a …… Upward surface 24 …… Arm 31,131,231 …… Concave tapered surface 32,232 …… Convex tapered surface 41 …… Bending claw, 42 …… Hook hole A …… Use end side

Claims (7)

[Claims] 1. A desk comprising a top plate, legs, a taper engagement part, and a claw-shaped engagement part, wherein the top plate has metal plates attached to both upper and lower sides of a frame body. The leg has an upward surface that comes in contact with the lower surface of the top plate, and an arm along the tip edge of the top plate is rigidly installed at the upper end. The taper engaging portion comprises a concave taper surface provided on one of the tip edge of the top plate and the arm of the leg, and a convex taper surface provided on the other. The concave taper surface and the convex taper surface can be brought into close contact with each other by sliding the to the use end side with respect to the top plate. It comprises a bending claw provided on one of the upward faces of the body and a hook hole provided on the other side. It is configured so that the bent claw can be engaged with the hook hole by inserting the leg into the use end side with respect to the top plate by inserting the leg into the hook hole. A desk characterized in that the arm is tightly connected to the top edge of the top plate with a fastener. 2. A V-shaped concave taper surface is provided on the top edge of the top plate.
The convex taper surface formed in the groove is formed on a ridge protruding from the arm.
Desk described. 3. A convex taper surface is formed on a ridge provided on the top edge of the top plate, and a concave taper surface is formed in a groove provided on the arm. The desk according to item 1. 4. The desk according to claim 1, 2 or 3, wherein a hook hole is provided on a lower surface of the top plate, and a bent claw is provided so as to project from an upper surface of the leg. 5. The desk according to claim 1, 2 or 3, wherein a bent claw is provided so as to project from a lower surface of the top plate, and a hook hole is provided on an upper surface of the leg body. 6. The desk according to claim 1, 2, 3, 4, or 5, wherein the fastening member is a bolt that penetrates the arm and is screwed into a screw hole provided on the top plate side. 7. The desk according to claim 6, wherein each arm is fixed to the top plate with one bolt.