JPH08224130A - Buildup structure of table, desk, and the like - Google Patents

Abstract

PURPOSE: To connect a top plate via legs without any special fastening metals assuring a firm and reliable engagement between the top plate and the legs. CONSTITUTION: Along the circumference of the top end portion of a leg 2, plural engagement grooves 6 are provided at equal intervals, and a top plate attachment metal 11 provided with an engagement section 13, to be supported by engagement with the engagement groove 6, is attached to a corner of the top plate 1. On the upper part of the engagement section 13, there is a screw hole 13b provided with plural slits 13a. A screw 17 is inserted into the screw hole 13b, and the upper part of the engagement section 13 is expanded by the tapered section 17b of the screw 17, which connects the engagement section 13 firmly with an engagement groove 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly structure for a table, a desk or the like for attaching a top plate to legs.

[0002]

BACKGROUND OF THE INVENTION In general, many tables, desks and the like are constructed such that a mounting plate fixed to the upper ends of legs is fixed to a corner or the like on the lower surface of a top plate with a screw. In addition, a fitting piece is laterally projected on the connecting material fitted to the upper ends of the legs, and the fitting piece is fitted into a recess opening at the end of the top support so as to be connected. A structured table is also known (see Japanese Utility Model Publication No. 5-25461).

However, the above-mentioned conventional table,
In a desk, etc., only one top plate can be attached to one leg, so when connecting multiple tops such as tables to the left or right or front and back, each top plate requires four legs. Therefore, the number of legs cannot be reduced.

For this reason, conventionally, it is necessary to separately prepare a leg exclusively for continuous installation, such as a leg to which an attachment plate to which a plurality of top plates can be attached is fixed is provided, which causes a cost increase.

Therefore, the present applicant has already eliminated the need to separately prepare a leg for exclusive use of the connection, and the top plate can be easily connected via the leg so that the outer peripheral portion of the upper end of the leg can be easily connected. A plurality of fitting grooves are formed at equal intervals in the circumferential direction, and a top plate fixture having fitting parts that are fitted and held in the fitting grooves is attached to the four corners of the top plate, such as a table or a desk. We applied for an assembly structure and proposed it (Japanese Patent Application No. 6-39086).

[0006]

However, in the above-mentioned assembly structure proposed by the present applicant, since the fitting portion of the top plate fixture is simply inserted into the fitting groove of the leg to hold the fitting, The mating part may loosen and rattling may occur.

Therefore, an object of the present invention is to enable the top plate to be easily connected via the legs without the need for a dedicated metal fitting for the connection, and the fitting between the top plate and the legs does not become loose. It is to provide an assembly structure of a table, a desk, etc. which is surely and firmly made.

[0008]

In order to achieve the above object, the invention according to claim 1 forms a plurality of fitting grooves in the outer peripheral portion of the upper ends of the legs at circumferential intervals, and In an assembly structure of a table, a desk, etc. that attaches a top plate fixture having a fitting part that is fitted and held in a mating groove to a top plate, a receiving hole part where a plurality of slits are formed around the fitting part. Is provided
An assembly structure for a table, a desk, etc., characterized in that an insertion member for expanding the upper portion of the fitting portion is inserted into the receiving hole portion.

According to a second aspect of the present invention, in the assembly structure of the table, desk, etc., according to the first aspect, the opening of the receiving hole is
It is characterized in that an inclined portion that comes into contact with the tapered portion formed on the insertion member is formed.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the assembling structure of the table, the desk, etc. described above, the insertion member is a screw having a tapered portion on the head, and the receiving hole portion is a screw hole which is screwed with the screw.

[0011]

In the structure for assembling a table, a desk, etc. according to claim 1, the top plate is attached to the top plate by fitting the fitting part of the top plate fitting attached to the top plate into the fitting groove at the upper end of the leg. It can be easily connected to the legs. And, if necessary, it is possible to simultaneously fit the fitting parts of the top plate fixtures into the fitting grooves on the upper part of the legs, so that the legs can be mounted without the need for dedicated metal fittings. It is possible to easily connect a plurality of top plates in series. Further, when the insertion member is inserted into the receiving hole portion of the fitting portion after the fitting portion and the fitting groove are fitted together, the upper portion of the fitting portion is expanded, so that the fitting portion is fitted to the outer periphery of the fitting portion. It is possible to firmly join the mating groove, and it is possible to prevent rattling from occurring in the fitting portion.

In the assembling structure of the table, desk, etc. according to the second aspect, since the inclined portion which abuts the tapered portion formed on the insertion member is formed in the opening of the receiving hole, the insertion of the insertion member can be prevented. 4. The assembly structure for a table, desk, etc. according to claim 3, wherein the upper part of the fitting part can be easily opened by inserting the insertion member, and the insertion member has a taper portion on its head. Since it is a screw and the receiving hole is a screw hole that is screwed with the screw, the upper portion of the fitting portion can be easily and reliably expanded by screwing the insertion member into the receiving hole.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show an embodiment in which the present invention is applied to a table. FIG. 1 is an overall perspective view of this embodiment, and FIG. 2 is an exploded view of essential parts of this embodiment. 3 is a perspective view, FIG. 3 is a vertical cross-sectional view of a main part of this embodiment, and FIG. 4 is a schematic plan view showing a connected state of a top plate and legs of this embodiment.

In the figure, the table is provided with a top plate 1 and four legs 2, and the leg 2 has a leg main body 3 having an adjuster 4 (see FIG. 3) for height adjustment at the lower end, and this leg. The support 5 is attached to the upper end of the main body 3. And leg 2
A plurality of (8 in the figure) fitting grooves 6 in the form of slit grooves are formed at equal intervals in the circumferential direction on the outer peripheral surface of the supporting member 5 which forms the outer peripheral portion of the upper end portion. Although the support 5 has a larger outer diameter than the leg body 3, both may have the same diameter. Further, the support 5 and the leg body 3 may be integrally formed, but in the case of the present embodiment, the support 5 having the fitting groove 6 and the leg body 3 can be separately processed and formed. , Each can be manufactured inexpensively with a minimum processing cost.
Further, the supporting tool 5 is made common, and the leg bodies 3 having different lengths can be easily prepared by selecting and combining the leg bodies 3 having different lengths.

By screwing the threaded portion (not shown) of the support 5 into the screw hole (not shown) of the leg body 3, the two are firmly engaged with each other, and the leg body 3 and the support 5 are connected to each other. Can be combined easily and firmly.

As shown in FIG. 4, each fitting groove 6 has a substantially convex cross section, and the opening width d of each fitting groove 6 on the outer peripheral surface of the support 5 is defined by the inner space of this fitting groove 6. It is formed to be narrower than the lateral width D of the portion 6a. Further, as shown in FIG. 2, each fitting groove 6 extends in the vertical direction and opens to the upper end of the support tool 5, and a cap body 7 for closing the upper end of the fitting groove 6 is provided at the upper end of the support tool 5. It is detachably attached. Here, a screw portion 8 is provided in the center of the lower surface of the cap body 7, and a screw hole 9 that is screwed into the screw portion 8 is formed in the center of the upper end of the support tool 5.

On the other hand, concave portions 10 which are fitted to the outer peripheral surfaces of the supporting members 5 of the legs 2 are formed on the peripheral portion of the top plate 1, for example, at the four corners. The top plate mounting tool 11 mounted on the bottom surfaces of the four corners of the top board 1 is a substantially prismatic fitting capable of being fitted and held in the base part 12 abutting the bottom surface of the top board 1 and the fitting groove 6 of the support tool 5. And a base portion 12 of the top plate mounting tool 11 corresponding to the three screw holes 14 formed on the lower surfaces of the four corners of the top plate 1, and a set screw to be screwed into the screw hole 14. 1
Three screw through holes 16 are formed to allow the screw 5 to pass through from below.
A screw hole portion 1 serving as a receiving hole portion having a plurality of slits 13a formed around the upper portion of the fitting portion 13 of the top plate fixture 11.
3b is formed, and an inclined portion 13c is formed in the opening portion of the screw hole portion 13b so as to spread outward. A screw 17 as an insertion member for expanding the upper portion of the fitting portion 13 is inserted into the opening portion of the screw hole portion 13b. A head portion 17a of the screw 17 is formed with a taper portion 17b whose diameter increases toward the upper portion of the head portion in correspondence with the inclined portion 13c of the opening portion of the screw hole portion 13b.

In the assembling structure of the table having the above structure, the fitting portion 13 of the top plate mounting member 11 mounted on the top plate 1 is fitted into the fitting groove 6 from the upper end of the supporting member 5 of the leg 2. At this time, as described above, the opening width d of each fitting groove 6 is formed to be narrower than the lateral width D of the inner space portion 6a of the fitting groove 6, so that the fitting groove 6 is fitted into the fitting groove 6. It is possible to prevent the substantially prismatic fitting portion 13 of the top plate mounting tool 11 from coming out laterally from the fitting groove 6. After fitting the fitting portion 13 into the fitting groove 6,
From the upper end of the support tool 5, the screw 17 is screwed in from the opening portion of the screw hole portion 13b of the fitting portion 13. Then, the screw hole 13b
Tapered portion 1 of the inclined portion 13c of the
7b and the head portion 17a of the screw 17 and the screw hole portion 1
Since 3b is expanded outward, the fitting portion 13 and the fitting groove 6 are firmly fitted to each other, as shown in FIG. After screwing in the screw 17, the cap body 7 is screwed onto the upper end of the support 5. As a result, the fitting portion 13 is positioned and fixed in the fitting groove 6, and the top plate 1 and the legs 2 are attached via the top plate attachment 11.
And are strongly connected.

When only one top plate 1 is connected to one leg 2, some of the eight fitting grooves 6 formed on the outer peripheral surface of the support 5 of the leg 2 are exposed to the outside. However, since the support tool 5 having the fitting groove 6 formed thereon has an excellent decorative appearance,
It does not spoil the aesthetics of the table. Furthermore, since the top plate attachment 11 can be easily screwed to the lower surface of the top plate 1, the workability of assembly is excellent.

Since the fitting portions 13 of the plurality of top plate fittings 11 can be fitted into the plurality of fitting grooves 6 on the upper portion of the leg 2 at the same time, no dedicated metal fittings for continuous installation are required. On leg 2
The top plate 1 can be easily connected via the.

Further, although the screw 17 having the tapered portion 17b on the head portion 17a is used as the insertion member in the above-described embodiment, a screw having a tapered thread portion is used, and the tapered screw is used as the receiving hole portion. The taper-shaped screw hole portion may be screwed. Further, any member that can expand the upper portion of the fitting portion outwardly by being inserted into the receiving hole portion, such as a tapered rod-like body, can be adopted as the insertion member.

Although the embodiments in which the present invention is applied to a table have been described above, the present invention can also be applied to a desk, a counter or the like which employs a combined structure of a top plate and legs.

[0024]

As is apparent from the above description, according to the present invention, it is possible to easily connect the top plates via the legs without the need for a metal fitting exclusively for the connection and the top plates. Provided is an assembly structure for a table, desk, etc., which is capable of firmly fitting the fitting portion between the foot and the leg, preventing the fitting portion from rattling, and being robust and having excellent durability. be able to.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a table showing an embodiment when the present invention is applied to the table.

FIG. 2 is an exploded perspective view of a main part of the table shown in FIG.

FIG. 3 is a vertical exploded perspective view of a main part of the table shown in FIG.

FIG. 4 is a schematic plan view showing a connecting portion between a top plate and legs of the table shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top plate 2 Legs 3 Leg body 5 Supporting tool 6 Fitting groove 7 Cap body 11 Top plate mounting portion 13 Fitting portion 13a Slit 13b Screw hole portion (receiving hole portion) 13c Inclined portion 17 Screw (insertion member) 17a Head portion 17b Tapered part

Claims (3)

[Claims] 1. A top plate fixture having a plurality of fitting grooves formed in the outer peripheral portion of the upper ends of the legs at intervals in the circumferential direction, and having a fitting portion fitted and held in the fitting grooves. In an assembly structure of a table, desk, etc. that is attached to a plate, an insertion member is provided in the upper part of the fitting part with a plurality of slits formed around it, and the upper part of the fitting part is expanded into this receiving hole part. A structure for assembling a table, a desk, etc., characterized in that 2. The assembly structure for a table, a desk, etc. according to claim 1, wherein an inclined portion that abuts a tapered portion formed on the insertion member is formed at the opening of the receiving hole. 3. The table, desk, etc. according to claim 1 or 2, wherein the insert member is a screw having a taper portion on the head, and the receiving hole portion is a screw hole screwed with the screw. Assembly structure.