JPH0461811A - Unit type bench - Google Patents

Abstract

PURPOSE:To easily change length and shape, in particular the contour shape of a seat back part, by forming frame members having a nearly equal dimension in a skewering connection structure at equal intervals, by a long connecting member. CONSTITUTION:A frame member consists of three members: each three-layer structure frame member 2A arranged at both the edges of a bench, supporting leg integral type frame member 2B arranged at a bench center position, and an integral type frame members 2C arranged at equal intervals between these frame members 2A and 2B, and each connection pipe consists of the first and second connection pipes 31 and 32 which are connected each other at the center position on the longitudinal direction of bench. The frame member 2A, a plurality of frame members 2C and the frame member 2B are connected in succession, arranging spacers 4 therebetween by the connection pipes 3A, 3B, and 3C and assembled. Accordingly, when the connecting pipe is made long, a desired length can be obtained, and the contour shape of a seat back part can be set arbitrarily by changing the arrangement order of the frame 2C having different height of the seat back part.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a unit type chair that can be assembled by combining certain standard parts. The present invention relates to a unit-type chair that is particularly designed to be used as an indoor/outdoor bench in public gathering facilities.

[Prior Art] A commonly known bench has a frame made of metal pipes, to which a plurality of crosspieces forming the seat are attached in parallel, and a plurality of crosspieces forming the backrest are attached to the frame in parallel. It has a structure in which multiple pieces are attached. In addition, a bench that simply has a seat has a structure in which a wooden frame is assembled in a raised shape, and a plurality of crossbars are arranged horizontally in parallel on top of the wooden frame. On the other hand, concrete benches are also commonly known.

[Problem to be solved by the invention]

Such conventional benches have a structure in which parts having predetermined dimensions and shapes are procured or manufactured depending on the installation location and then assembled. Therefore, it is virtually impossible for the user to arbitrarily change its length and shape. In particular, in conventional benches, the contours of the backrest and seat portion are conventional shapes, and these contours cannot be made into desired shapes. Furthermore, if it is damaged, repair work is difficult.

An object of the present invention is to address these conventional problems and to realize a unit-type chair having a structure in which the length and shape, particularly the contour shape of the backrest portion, can be easily changed.

[Means and actions for solving problems]

In order to solve the above problems, the present invention employs a structure in which frame members of approximately the same size are connected in a skewered manner at regular intervals using elongated connecting members.

Each frame member has an L-shape as a whole, and by arranging them at regular intervals, a seat portion and a backrest portion are formed.

If this configuration is adopted, a chair or bench of a desired length can be obtained by preparing connecting members of different lengths. In addition, if you prepare frame materials with different backrest heights, you can easily change the arrangement order of these frame materials to create the desired circular shape of the backrest of the chair or bench. The shape can be changed. Furthermore, if damage occurs due to long-term use, it is only necessary to replace the parts that constitute the damaged part, such as the frame material, which simplifies repair work.

As the above-mentioned frame material, it is possible to use one in which the seat portion and the backrest are integrated, but it is also possible to use one in which the seat portion and the backrest are separated. This makes the tree removal work easier. In addition, in this case, if a gap is formed between the backrest side and the seat side, rainwater, etc. that falls from the backrest side to the seat side will fall from this gap, so the backrest It is possible to prevent water from accumulating in the corner part between the part and the seat part and causing corrosion there.

Further, as the frame material, one having a structure in which the chair leg portions are integrally formed can be adopted.

By arranging frame members of this structure between other frame members at regular intervals, a long bench can be constructed more easily.

Furthermore, if the connecting members are structured so that they can be connected to each other, an even longer bench can be easily constructed. In addition to this, if a curved shape is used as the connecting member,
A bench with a curved shape can be constructed.

〔Example〕

The present invention will be described in detail below with reference to the drawings.

Fig. 1 shows a front view of the unit type bench of this example, and Fig. 2 shows an exploded view of each of its constituent parts. To explain with reference to these figures, the unit type bench 1 of this example includes a plurality of frame materials (2A, 2B, 2
C) is connected at regular intervals in a skewered manner by three connecting pipes 3A, 3B, and 3C,
A spacer 4 is arranged between these frame materials,
The spacing between the frame members is kept constant.

Support legs 5R15L are arranged at both ends of the bench, and these support legs support two pipes 3A and 3B among the connecting pipes connecting the plurality of frame members.

The frame materials are arranged at equal intervals between a three-layer frame material 2A placed at both ends of the bench, a frame material 2B integrated with support legs placed at the center of the bench, and these frame materials 2A and 2B. It consists of three types of one-piece frame material 2C.

Further, each connecting pipe is composed of a first connecting pipe 31 and a second connecting pipe 32 that are connected to each other at a central position in the longitudinal direction of the bench.

Figure 3 shows an integral frame material 2C. This frame material 2C is formed from a thin material having an approximately L shape as a whole, and includes a seat side portion 21 that constitutes a bench seat portion, and a backrest portion 22 that constitutes a bench backrest portion.
It has On the seat side part 21, there are two
Pipe through holes 21a and 21b are formed, and these dimensions are set so that the connecting pipe can pass through them.

Similarly, a pipe through hole 22a is also formed on the upper side of the backrest portion 22. Here, each of the frame members 2C has the same shape, except for the height of the backrest portion 22. That is, the height of the frame material 2C that is arranged adjacent to the frame materials 2A and 2B located at both ends and the center of the bench is Hmin, which is the lowest height of these frame materials 2A.

Frame material 2C located in the center of 2B has a height of Hmax
is the highest, and the height of the frame material 2C between these is set to a dimension that gradually increases or decreases so that the waveform shown in FIG. 1 can be formed. In this example, the frame material 2C is made of wood, and has been treated with chemical impregnation to increase its durability.

Next, the two frame members placed at both ends of the bench have a three-layer structure as shown in FIG. In other words, it is composed of two wooden frame pieces 2A-1 and 2-2 of the same shape, and a steel reinforcing frame piece 2A-3 of the same shape sandwiched between them. Each of these frame pieces has two seat-side through-holes formed at the same position, and these form seat-side through-holes 21a and 21b. On the other hand, on the backrest side, the wooden frame piece 2A-1 located at the end of the bench has no through holes, and only the other two frame pieces have through holes. is formed, and the through hole of the steel frame piece 2A-3 located at the center is provided with a tightening nut 7 for preventing slipping out.
is installed.

On the other hand, the frame material 2B located at the center in the longitudinal direction of the bench has a three-layer structure, as shown in FIG.
The steel reinforcing frame piece 2B-3 is supported by the wooden frame pieces 2B-1 and 2B-2 on both sides, and these are fixed to each other with an adhesive to form an integrated structure. On the seat side, there are formed through holes that constitute the pipe through holes 21a and 21b, and on the backrest side, there are also formed through holes that constitute the pipe through hole 22a.

However, in this frame material 2B, the central steel reinforcing frame piece 2B-3 has a shape in which the bench support leg 8 is integrally formed on the lower edge side of the seat portion 21 thereof.

``Pipes'' and Spacers Next, the structures of the three connecting pipes 3A, 3B, and 3C described above will be explained. As mentioned above, each pipe is made up of a first and a second connecting pipe 31,32. FIG. 6 shows the first connecting pipe 31, which includes a hollow linear main body part 311 and bolt parts 3 attached to both ends of the main body part 311.
12.313. On the other hand, in the other second connecting pipe 32, as shown in FIG. 7, a bolt part 322 is attached to one end of a hollow linear main body part 321, and Connecting nut part 3
23 is attached. These bolt parts have the same shape, and the above-mentioned connecting NAND part 32
In this example, the bolt section 313 of the inner end of the first connecting pipe 31 is screwed into the connecting nut section 323 of the inner end of the other second connecting pipe 32, thereby Both pipes are connected to form one straight connecting pipe.

FIG. 8 shows the bolt portion 322 mentioned above. As shown in the figure, this bolt portion 322 has its base end inserted into the end opening 321a of the pipe main body portion 321, and is fixed therein by welding.

FIG. 9 shows the above-mentioned connecting nut portion 323. As shown in the figure, the connecting nut portion 323 has a cylindrical shape with one end closed, and its length l is set to be the same length as the spacer 4 described above. A threaded portion 323a is formed on the inner peripheral surface of this connecting nut portion.

Also, inside this, an enlarged diameter head 324 of the connecting bar 324 is provided.
A is rotatably mounted. The leg portion 324b of this connecting bar 324 extends through the closed end surface 323b of the connecting nut portion, and this portion is connected to the pipe body portion 32.
1 and fixed thereto by welding. Note that a fastening tool hole 323c used for fastening this nut part is formed on the outer circumferential surface of the connecting nut part 323b.

Note that the other bolt portions 312 and 313 are also the same as the bolt portion 322 described above, so a description thereof will be omitted.

On the other hand, FIG. 10 shows a longitudinal section of the spacer 4 described above. The spacer 4 is made of steel and has an annular shape with a larger outer diameter than the through holes 21a, 21b, and 22a formed in the frame material.

As shown in FIGS. 1 and 2, the support leg 5R attached to the end of the bench has a T-shape as a whole, and includes a horizontal head 51 and a leg extending perpendicularly from the center of the lower surface of the support leg 5R. Part 5
It is composed of 2.

Further, on the inner end surface 51a of the head 51, a bolt portion 31 attached to the ends of the connecting pipes 3A and 3B on the seat side is provided.
2.322 is formed with a hole 53.54, and the bolt portion 312.22 is passed through the hole.
At 322, locking nuts 9a and 9b are inserted from the opposite side.
It is now possible to conclude. Note that the configuration of the support leg 5L attached to the other end is symmetrical with respect to the support leg 5R.

The unit type bench with the above configuration has connecting pipes 3A and 3B.
, 3C, the frame material 2A, the plurality of frame materials 2C1, and the frame materials 2B are sequentially connected with the spacer 4 disposed between them, and then nuts 9a are attached to both ends.
, 9b are assembled. In the bench having this configuration, the bench can be lengthened to a desired length by sequentially adding the second connecting pipes 32 constituting the connecting pipe to lengthen the connecting pipe. FIG. 11 shows a long bench constructed by connecting three second connecting pipes 32 in this manner. Here, as shown in this figure, when the bench is made long, sufficient support strength can be provided by arranging frame members 2B integrated with support legs at predetermined intervals. On the contrary, when only the first connecting pipe 31 is used, a bench with half the length can be constructed as shown in FIG. 12.

Next, in this example, frame materials 2C of different heights are prepared and set so that the contour shape in the longitudinal direction of the backrest becomes a waveform as shown in FIG. As shown in FIG. 13, the frame 2C having the backrest part can also be used to construct a backrest part with a flat contour. In this way, frame 2C to be used
It is possible to configure the backrest portion with different outline shapes, and also the frame 2 with different heights of the backrest portion can be configured.
By changing the arrangement order of C, the contour shape of the backrest portion can be set to an arbitrary shape.

Further, in this example, the first and second connecting pipes 31, 32 are connected by screwing the bolt portion 313 into the connecting nut portion 323. This connecting nut portion 323 is rotatably attached to the second connecting pipe 32 via a connecting bar 324'. Therefore, in the screwing operation at the time of connection, it is only necessary to rotate this connecting nut portion 323, and there is no need to rotate the connecting pipe 31 or 32 itself. Therefore, such connection work can be easily performed.

The above example is illustrative of one embodiment of the invention and is not intended to limit the invention to this structure.

For example, as a frame material, as shown in Fig. 14,
It is also possible to use a separate type consisting of a seat plate 25 constituting a seat portion and a back plate 26 constituting a backrest portion. Using a separate type as described above has advantages such as easy removal of wood, high yield, and ease of processing. In this case, as shown in Fig. 14, two pipe through holes 26a and 26b are formed on the back plate side, and the back plate is connected with two connecting pipes. There is a need to. In addition, when the separable type is used, the through holes 25a, 25b,
It is preferable to set the positions of 26a and 26b. In this way, the slit functions as a draining part, and rainwater dripping from the side of the back plate is prevented from falling and being drained from the part and remaining on the surface of the seat plate.

In addition, FIG. 15 shows such a separate frame,
An example of a three-layer structure is shown. As shown in the figure, a reinforcing steel frame 28 with an integrated seat and backrest is placed in the center, and a seat plate 25 and a backboard 26 are fixed to both sides of the frame using an adhesive or the like. The structure is as follows. In this case, slits 27 for draining water are formed on both sides of the steel frame 28.

Next, FIG. 16 shows a modification of the connecting pipes 31 and 32. The connecting pipes 33, 34 shown in this figure are each formed into an arc shape.

In this case, as shown in FIG. 17, an annular spacer 41 having a trapezoidal cross section is used. When the frame members are connected using these, a bench extending in an arc shape can be constructed as shown in FIG. 18. Of course, if the shape of the connecting pipe is made more complicated, the bench can be constructed with a corresponding shape. Further, the cross-sectional shape of these connecting pipes may be square in addition to circular.

In FIG. 19(A) or T), support 11115R1
Various modifications of 5L are shown. Among these, (A)
In the examples shown in , (B), (E) and (F), a vase 51 is constructed on the upper surface of the support leg.

Example (T) is an example in which a vase 51 and a waste bin 52 are formed on the upper surface. The example shown in (H) is an example in which a waste container 52 and an ashtray 53 are formed.The example shown in (G) is an example in which a flower vase 51, a waste container 52 and an ashtray 53 are formed.On the other hand, (C The example shown in ) is a support leg to which a bench can be connected at right angles, and the examples shown in (D) and (E) are
It is a support leg that can connect the bench in three directions, and also (F
The example shown in ) is a support leg to which a bench can be connected in four directions.

On the other hand, in the above-mentioned embodiment, frame materials with different heights of the backrest portions are used to make the outline of the backrest portion of the bench wave-like. For example, the contour shape of the tip of the seat can be made into a desired shape, and in this way, a kind of monumental bench can be constructed.

In addition, the materials for the wooden frame include veneer, laminated wood,
LVL, plywood, etc. can be used. Alternatively, the frame may be constructed from plastic, a metal material such as aluminium, or it may be manufactured from ceramic or glass.

[Effects of the Invention] As explained above, the unit-type chair of the present invention adopts a structure in which frame members having the same shape are connected at regular intervals in a skewered manner by connecting members. By changing the length of the chair or bench, a chair or bench of desired length can be easily constructed. Furthermore, by changing the height of the backrest or the width of the seat of the frame material used, a chair or bench with a desired contour can be easily constructed. Furthermore, by using a curved connecting member, chairs or benches of various shapes can be constructed. As described above, according to the present invention, a chair or bench having an excellent design can be constructed using frame members arranged at predetermined intervals.

Furthermore, since the unit-type chair of the present invention can be constructed by assembling a plurality of parts, it can be transported to the installation site in units of small parts, and such transport work is extremely easy. Additionally, in case of partial damage,
Maintenance is also extremely easy, as only the parts that make up that part need to be replaced.

[Brief explanation of the drawing]

Fig. 1 is a front view of a unit type bench according to an embodiment of the present invention, Fig. 2 is an exploded perspective view showing the right half of the bench shown in Fig. 1, and Fig. 3 is a side view showing the frame material of Fig. 1. Figure, 4th
The figure is an exploded perspective view showing the frame material at both ends of the bench in Fig. 1, Fig. 5 is an exploded perspective view showing the frame material integrated with support legs located in the center of the bench in Fig. 1, and Fig. 6 is the same as in Fig. 1. FIG. 7 is a perspective view showing the second connecting pipe in FIG. 1, FIG. 8 is a sectional view showing the bolt part of the connecting pipe in FIG. 7, and FIG. 9 is a perspective view showing the first connecting pipe. FIG. 7 is a sectional view showing the connecting nut portion of the connecting pipe; FIG. 10 is an enlarged sectional view showing the spacer in FIG. 1;
13 is a front view showing a modification of the bench shown in FIG. 1, FIG. 14 is a perspective view showing a separate frame material which is a modification of the frame material shown in FIG. 3, and FIG. 15 is a front view showing a modification of the bench shown in FIG. 5 is a perspective view showing a modification of the frame material shown in FIG. 5, FIG. 16 is a perspective view showing a modification of the connecting pipe shown in FIGS. 6 and 7, and FIG. 17 is a modification of the spacer shown in FIG. 18 is a perspective view showing a modified example of the bench shown in FIG. 1, and FIGS. 19(A) to (1) are perspective views showing modified examples of the support leg shown in FIG. 1. be. [Explanation of symbols] 1... Unit type bench 2A, 2B, 2C... Frame material 2A-1, 2A-2... Wooden frame piece 2A-3...
・Reinforcing steel frame pieces 2B-1, 2B-2...Wooden frame pieces 2B-3, 2
8... Steel frame pieces for reinforcement 3A, 3B, 3C...
Connection pipe 4...Spacer 5R15L...Support leg 7...Nut 8...Support leg 21.25...Seat portion 2.26...Backrest portion 1a, 21b, 22a...Through hole l...First connecting pipe 2...Second connecting pipe 11.321...Pipe body portion 12.313...Bolt portion 23...Connecting nut portion. Figure 4 - 1, -1-, 1 Figure 14 Figure 16 Figure 18

Claims (7)

[Claims] (1) A plurality of frame materials forming the seat portion and the backrest portion, connecting means connecting these frame materials to each other at regular intervals in a skewered state, and the frame materials connected by the connecting means and support means for supporting the frame on a flat surface such as a floor, each of the frame members having a substantially L-shape as a whole, and a portion forming the seat portion and a portion forming the backrest portion, respectively. A seat-side connection hole and a backrest-side connection through-hole are formed, and the connection means penetrates the seat-side connection through-hole and the backrest-side connection through-hole of each frame material, respectively. a seat side connecting member and a backrest side connecting member;
The supporting means includes a plurality of spacers that maintain a constant spacing between the frame members connected by these connecting members, and a retaining member that prevents the frame members from coming off from these connecting members. A unit-type chair comprising support legs that support at least the seat-side connecting member. (2) The unit-type chair according to claim 1, wherein the frame material has a structure in which a portion forming a seat portion and a portion forming a backrest portion are separated. (3) Claim 1 or 2, characterized in that the support leg-integrated frame material is provided in which the support legs are integrally formed in a seat portion of the frame material. Unit chair. (4) In any one of claims 1 to 3, the seat side connecting member and the backrest side connecting member are
Each of them is composed of a first connecting member and a second connecting member, and a nut constituting the retaining member is screwed to both ends of the first connecting member and one end of the second connecting member. A connecting nut portion is formed at the other end of the second connecting member to which the bolt portion can be screwed, and this connecting nut portion functions as the spacer. A unit-type chair characterized by: (5) In claim 4, the connecting nut portion is
A unit-type chair, characterized in that the unit-type chair is rotatably attached to the second connecting member about its axis. (6) In any one of claims 1 to 5, the seat side connecting member and the backrest side connecting member have a curved shape in the material axis direction, and the spacer is . A unit-type chair, characterized in that the frame member is set in a shape that allows the frame material to be attached to the curved connecting members at regular intervals. (7) The unit type chair according to any one of claims 1 to 6, wherein some of the frame materials have at least different heights at backrest portions. .