JPS582890Y2 - Fastening device for orthogonal members in chairs, etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fastening device used for furniture such as chairs and tables, and particularly to a device for fastening a vertical member to a horizontal member in a simple and stylish manner.

FIG. 1 shows that the seat plate 2 and the struts 4 of the armrest 3 are attached to the horizontal member 1, and the leg struts 5 are attached below the ends of the horizontal member 1, and the back is attached to the bracket 6 that protrudes from the rear of the armrest 3. A multi-connected chair 4 with plates 7 attached thereto is shown, and in the chair constructed in this way, the present invention is implemented when the armrest supports 4 to leg supports 5, which are vertical members, are fastened to the horizontal member 1. An example will be explained in detail below according to the drawings.

The horizontal member 1 in the present invention consists of a pair of parallel beams 1.1 made of vertically oblong pipes that are parallel to each other with a small distance between them.
The armrest support 4 to the leg support 5 are fastened to this horizontal member 1 via a connecting member 8.

The connecting member 8 is composed of two upper and lower receiving members 81 and 82 made of, for example, synthetic resin.

On the lower surface of the upper receiving member 81 and the upper surface of the lower receiving member 82,
A pair of receiving grooves 9, 9 into which the upper halves of the pair of parallel beams 1a, 1& are fitted, and a pair of receiving grooves 10, 10 into which the lower halves are fitted, respectively.
is provided for in parallel law.

Insertion holes 11 and 12 penetrating in the height direction are provided in intermediate portions of the receiving grooves 9 and 9 and in intermediate portions of the receiving grooves 10 and 10, respectively.

When only the armrest support 4 is fastened to at least one of the receiving members 81 and 820, for example, the horizontal member 1, a fitting shaft portion 14 is integrally provided on the upper surface of the upper receiving member 81 via the first step portion 13, Although not shown, when only the leg support 5 is fastened to the horizontal member 1, on the lower surface of the lower support member 82,
A fitting shaft portion is integrally provided via the stepped portion.

Furthermore, when the armrest support 4 and the leg support 5 are fastened to the horizontal member 1 at the same time, a pair of receiving members 81 each having a fitting shaft 14 integrally protruding from the upper surface via the first step 13 are provided. is used.

The armrest support 4 and leg support 5, which are vertical members, are made of pipes having the same shape.

Therefore, the cross-sectional shape of the fitting shaft portion 14 is formed to be approximately equal to the hollow cross-sectional shape of the pillar, and the end portions of the armrest struts 4 to leg struts 5 extend to the step portion 13 at the fitting shaft portion 14. inserted.

The lower receiving member 82 shown in FIG. 5, which does not have a fitting shaft portion, includes:
A recessed portion 15 shown in red is formed at the lower end of the insertion hole 12 .

When installing only the horizontal member IK armrest support 4, as shown in FIG. 2, from the top and bottom of the horizontal member 1,
The upper receiving member 81 having the fitting shaft portion 14 on the upper part and the lower receiving member 82 having no fitting shaft portion are connected to the receiving grooves 9, 9 and 10.
, 10 are joined by fitting a pair of parallel beams 1a, 1a, respectively.

In this case, by mutually engaging the engaging protrusion 16 and the engaging recess 17 provided on the lower surface of the upper receiving member 81 and the upper surface of the lower receiving member 82, the receiving member 81 is attached to the horizontal member 1.
and 82 are regulated in the longitudinal direction.

In this state, the armrest support 4 is interposed between the downward U-shaped armrest 3 and the upper support member 81, and its lower end is fitted into the fitting shaft portion 14 of the upper support member 81, and the upper end A long tightening bolt 18 that is fixed to the armrest 3 by welding or the like and hanging down is passed through the armrest support 4 and through the insertion hole 11 of the upper receiving member 81, between the pair of parallel beams 1, 1, and below. After sequentially inserting the nut 19 into the insertion hole 12 of the receiving member 82, the nut 19 is screwed onto the lower end of the tightening bolt 18 at the position of the concave portion 15 provided on the lower surface of the lower receiving member 82, and the nut 19 is tightened. , an armrest 3 is attached to a horizontal member 1 together with an armrest support 4.

When the leg support 5 and armrest support 4 are attached to the horizontal member 1 at the same time, separate leg sections 20 are used as shown in FIG. 3.

That is, as shown in FIG. 6, the leg portion 20 has a fitting shaft portion 22 having the same shape as the fitting shaft portion 14 via a stepped portion 21 on the upper surface of the center portion thereof, and a fitting shaft portion 22 having the same shape as the fitting shaft portion 14 on the lower surface of the center portion thereof. boss part 2
3 are provided integrally with each other, and an insertion hole 2 is provided in the center of each.
4 is provided to penetrate in the height direction.

By fitting the pair of parallel beams 1.1 into the receiving grooves 9°9 of the two receiving members 81, 81 each having the fitting shaft portion 14 from the vertical direction of the horizontal member 1, a a Join.

In this state, the armrest support 4 is interposed between the armrest 3 and one of the receiving members 81, and its lower end is fitted into the fitting shaft portion 14 of the receiving member 81, and the other receiving member 81 and the leg Part 20
The leg support 5 is interposed between the support member 81 and the upper end thereof is fitted into the fitting shaft 14 of the receiving member 81, and its lower end is fitted into the fitting shaft 22 of the leg 20, and then the upper end is A long tightening bolt 25 that is fixed in the armrest 3 by welding or the like and hangs down.
through the armrest support 4, and through the insertion hole 1 of the force receiving member 81.
1 and a pair of parallel beams 1&.

10, the insertion hole 11 of the other receiving member 81, and the leg support 5.
After sequentially inserting the nut 19 into the insertion hole 24 of the leg part 20, the nut 19 is screwed onto the lower end of the tightening bolt 25 at the lower surface position of the boss part 23 of the leg part 20, and the nut 19 is tightened. An armrest support 4 and a leg support 5, as well as an armrest 3 and a leg part 20 are integrally attached to the horizontal member 1.

As described above, the present application has a configuration in which a vertical member consisting of a pipe is fastened to a horizontal member by a connecting member, and the horizontal member is composed of a pair of horizontal beams parallel to each other with a small interval, and The connecting member is formed by an upper receiving member having receiving grooves arranged in parallel on the lower surface into which a pair of horizontal beams are fitted, and an insertion hole located between the receiving grooves and penetrating in the height direction;
and a lower receiving member having receiving grooves arranged in parallel to fit the pair of horizontal beams, and an insertion hole located between them and penetrating in the height direction, and at least one of the receiving members has a vertical receiving groove. A fitting shaft part for fitting the ends of the members is integrally provided, and a receiving groove is fitted to a pair of horizontal beams with respect to the horizontal member, so that the upper receiving member and the lower receiving member are fixed in the vertical direction. At the same time, the end of the vertical member is fitted to the fitting shaft part, and the tightening bolt is inserted between the pair of horizontal beams, through the insertion hole provided in each receiving member, and into the vertical member, respectively. As a result, these are mutually tightened and fixed via the tightening bolts, so that the connecting member and the vertical member can be easily attached to and removed from the horizontal member, which is extremely convenient for assembling chairs, etc. At the same time, the tightening bolt is not exposed to the outside, so 1.
It has the advantages of good appearance, reliable installation, and simple configuration.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and Fig. 1 is a partially omitted perspective view of the chair, Fig. 2 is a cross-sectional view showing how the armrest support is attached, and Fig. 3 is the attachment of the armrest support and leg support. FIG. 4 is an exploded perspective view showing the connected state, and FIG. 5 is a sectional view of the lower receiving member. FIG. 6 is a sectional view of the leg. In the figure, 1 is a horizontal member, 1 is a parallel beam, 3 is an armrest, 4 is an armrest support, 5 is a leg support, 8 is a connecting member, 81 is an upper support member,
82 is a lower receiving member, 9, 10 are receiving grooves, 11, 12, 24
14 and 22 are fitting shaft portions, 18 and 25 are tightening bolts, and 19 is a nut. 20 is a leg.

Claims (1)

[Claims for Utility Model Registration] In a structure in which a vertical member consisting of a pipe is fastened to a horizontal member by a connecting member, the horizontal member is composed of a pair of horizontal beams parallel to each other with a small interval, and The connecting member is made of an upper receiving member, which has receiving grooves arranged in parallel on the lower surface into which a pair of horizontal beams are fitted, and an insertion hole located therebetween that penetrates in the height direction, and a pair of horizontal beams on the upper surface. and a lower receiving member having receiving grooves arranged in parallel to fit the horizontal beams therein, and an insertion hole located between the receiving grooves and penetrating in the height direction. A fitting shaft portion into which an end portion of the ice field member is fitted is integrally provided on at least one of the receiving members, and a fitting shaft portion that fits into the end portion of the ice field member is integrally provided, and
By fitting the receiving grooves into the pair of horizontal beams, the upper receiving member and the lower receiving member are joined in the vertical direction, and the end of the vertical member is fitted to the fitting shaft portion, and the tightening bolt is tightened. An orthogonal member in a chair or the like, which is formed by passing between a pair of horizontal beams and into the vertical member through an insertion hole provided in each receiving member, thereby tightening and fixing them to each other via the tightening bolt. fastening device.