JPH0313232Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to chairs used in meeting halls, training halls, theaters, etc., and in particular, the invention relates to chairs used in meeting halls, training halls, theaters, etc. This invention relates to an assembly chair that can be assembled by hand.

(Prior art) Benches, or chaise lounges, have often been used in gathering places, etc., but since these are made to a certain standard width, they adapt well to the size and shape of the room. There is relatively little to do;
In some cases, it may not be possible to provide a sufficient passage between the chairs, or on the other hand, the distance may be too large, resulting in wasted space.

In recent years, instead of bench-style chaise longues, articulated chairs with one-seater seats lined up and fixed on a horizontal frame have been used, but the width of the frame is still different from the dimensions adopted at the time of manufacture. Therefore, the same disadvantages as mentioned above cannot be solved.

(Problem to be solved by the invention) This invention can be used to install any number of chairs as needed.
The purpose of the present invention is to provide an assembly chair that can be connected in the left and right directions, uses a relatively small number of members, is easy to assemble and disassemble, and has a sturdy structure when in use. be.

(Structure for Solving Problems) In order to solve the above-mentioned problems, the assembly chair of the present invention is constructed as follows.

In other words, the seat plate and backrest are integrated,
and a shell having an appropriate number of assembly holes drilled in the left and right side edges, a frame portion that abuts and supports the lower surface of the seat plate portion and the back surface of the backrest portion of the shell, and the frame portion. A pair of left and right legs protruding downward from the front and rear ends of the shell, and a pair of left and right legs having through holes formed in the frame portion that match the through holes in the shell in a symmetrical manner. , a plurality of connecting members facing the lower surface of the seat plate portion or the back surface of the backrest portion of the shell, and having a through hole bored at both ends that can match the inner through hole in the leg; a through hole in the side edge of the shell, an inward through hole in the leg, and a through hole in the end of each connecting member,
By inserting bolts into these and tightening them with nuts, the shell, leg, and connecting member are integrally connected at the same time.

(Function) The shell, leg, and connecting member are integrally connected by a through bolt.

The half of the leg opposite to the side where the shell was attached is open, and the remaining shell can be attached here in the same manner.

(Embodiment) FIGS. 1 to 4 show an embodiment of the present invention.

FIG. 1 is an exploded perspective view showing an assembled chair as one unit, and the shell 1 is made of a material such as plastic or reinforced plywood, and is composed of a seat plate part 1a and a backrest part 1b, which are integrally formed. There is.

The backrest portion 1b is appropriately bent rearward to fit the human body, and the seat plate portion 1a is similarly shaped to fit the lower limbs of the human body.

Through holes 3 and 4 for connection to the legs 5 are bored on both side edges of the shell 1.

The legs 5 are made of a strong material such as metal, reinforced plastic, or reinforced plywood, and are attached to the seat plate portion 1a of the shell 1.
It consists of a frame part 5a having a shape that matches the lower surface of the frame part 5a and the back surface of the backrest part 1b, and a pair of supporting legs 5b which protrude downward from both front and rear ends of the horizontal part of the frame part 5a.

Through holes 6 and 7 are formed in the frame portion 5a at positions that align with the through holes 3 and 4 provided in the side edges of the shell 1, respectively.

The through holes 6 and 7 are provided symmetrically with respect to the center line in the width direction of the leg, and when the through holes 3 and 4 of the shell 1 are aligned with these, the side of the shell 1 The position in the width direction is determined so that the edge does not exceed the center line.

The lower surface of the seat plate portion 1a has front and rear 1
A pair of connecting members 8, 8 are provided. A downward stepped portion corresponding to the thickness of the frame portion 5a of the leg 5 is formed at both ends of these connecting members 8, 8, and in this portion,
A through hole 9 is bored in each of them. Each through hole 9 is located directly below the through hole 3 on both side edges of the seat plate portion 1a.

A connecting member 10 in the left-right direction is also provided on the back surface of the backrest portion 1b. This is curved rearward as shown in the fourth figure in order to avoid contact with the backrest part 1b in which the recessed part 2 is formed. However, if the degree of recess of the backrest portion 1b is small and stays within the thickness of the frame portion 5a, it may be formed in a straight line. At both ends of the connecting member 10, through holes 11, 11 are provided at intervals equal to the interval between the through holes 4, 4 provided in the shell 1.

FIG. 2 shows the above-mentioned shell 1, leg 5 and connecting member 8.
and 10 are sectional views showing a state in which they are connected with bolts and nuts.

The frame portion 5b of the leg 5 is held between the side edge portion of the seat plate portion 1a and the stepped portion of the connecting member 8, and the bolt 17 is inserted from above into the through holes 3, 6, and 9 bored in each member. Insert it, screw the nut 18 from below,
Fasten the three members.

The connecting member 10 in the backrest portion 1b does not have a stepped portion, and the connecting member 10 does not directly contact the back surface of the backrest portion 1b, but the bolts 17 and nuts 18
can use the same.

In the embodiment shown in the second figure, the bolt 17 is a countersunk head bolt, and the nut 18 is a sleeve nut with a flange, but this is based on the assumption that the seat plate portion 1a is relatively thin. , or other formats are also acceptable. For example, the seat plate portion 1a
Ordinary countersunk bolts or hexagon socket bolts may be used as long as they are thick enough and counterbore processing that allows the bolt head to sink down may be used. Otherwise, you can use regular hex nuts.

If the strength (rigidity) of the chair is insufficient just by fastening the shell 1 and the connecting members 8, 10 to the legs 5, a connecting member shown as 13 in FIG. 1 is added. That is, the support leg 5b has through holes 1 arranged on the left and right, similar to those in the frame portion 5a described above.
A connecting member 13 having holes 2 and 12 formed therein and a through hole 14 provided in a stepped portion having the same shape as the connecting member 8 is fastened to the supporting leg 5b with bolts and nuts to reinforce the rigidity of the entire chair.

In FIG. 1, the connecting member 13 is attached only to the front supporting leg, but it may be attached to the rear supporting leg if necessary.

As described above, the chair as one unit is assembled by connecting the shell 1, the connecting members 8, 10, and further the connecting member 13 as necessary to the pair of left and right legs 5. At this time, the shell and each connecting member are assembled only on one side of the frame portion 5a of each leg 5, and the through holes 6, 7, and 12 on the other side are left open.

The shell and connecting member constituting the adjacent chair and the legs on the opposite side can be assembled in the same manner or by connecting any number of the above-mentioned units.

When a plurality of units are connected and assembled, the outer through hole in the outermost leg 5 will be free, but this can be used to attach an armrest.

That is, as shown in the first figure, the armrest 15 is attached using the through holes 6 and 7 formed in the frame portion 5a of the leg 5. Examples are shown in FIGS. 2 and 3.

A circular horizontal hole 23 facing in the left-right direction and a vertical hole 20 extending from the middle of the horizontal hole 23 to the lower end surface of the armrest 15 are bored at the lower end of the vertically downward portion of the front end of the armrest 15. A cylindrical nut 21 is fitted into the horizontal hole 23, and the nut 21 has a female threaded hole 22 facing upward and downward in its intermediate portion.

The bolt 19 inserted from below the through hole 6,
Through the vertical hole 20, the female screw hole 2 in the nut 21
2, the armrest 15 is fixed to the frame portion 5a.

On the other hand, the upward piece 16 at the rear end of the armrest 15
is fixed using the through hole 7 of the frame portion 5a that corresponds to the backrest portion 1b.

(Effects of the invention) Since the assembly chair of the invention is constructed as described above, it has the following effects.

(1) Any number of units can be connected and assembled. Therefore, seats can be arranged in a free layout depending on the size and shape of the venue, etc., and the efficiency of room use can be improved.

(2) Can be used not only as a connected chair but also as a stand-alone unit.

(3) A robust assembly chair can be constructed using fewer parts.

(4) Easy to assemble and disassemble.

(5) Space can be saved when dismantling and storing.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a sectional view showing how each member of the embodiment is attached, and FIG. 3 is a perspective view showing how to attach an armrest. FIG. 4 is a diagram showing the relationship between the backrest portion and the connecting member. 1...Ciel, 1a...Seat plate part, 1b...Backrest part, 2...Recessed part, 3, 4...Through hole, 5...
Legs, 6, 7... Through hole, 8, 10, 13... Connecting material, 9... Through hole, 15... Armrest, 16... Upward piece, 17... Bolt 18... Nut, 19... ...Bolt, 21...Vertical hole, 21...Nut, 22...
Female threaded hole, 23...horizontal hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A shell in which the seat plate portion and the backrest portion are integral, and a suitable number of assembly holes are bored in the left and right side edges; and the seat plate portion of the shell. The frame portion is provided with a frame portion that abuts and supports the lower surface and the back surface of the backrest portion, and a pair of support legs that protrude downward from the front and rear ends of the frame portion. A pair of left and right legs in which holes are formed symmetrically side by side, and an inner through hole in the legs facing the lower surface of the seat plate portion or the back surface of the backrest portion of the shell, and at both ends thereof. A plurality of rigid connecting members are provided with through holes that can match the shell, and a through hole in the side edge of the shell, an inner through hole in the leg, and a through hole in the end of each of the connecting members. An assembled chair in which the shell, legs, and connecting members are integrally connected at the same time by aligning the holes, inserting bolts into these, and tightening them with nuts.