JPH04110554U - chair seat - Google Patents

Abstract

(57) [Summary] [Configuration] A plurality of engagement convex portions 3 are disposed in the circumferential direction on the circumferential surface of the core plate 1 in a centrifugal direction and engage with pipe ends of leg pipes, backrest support pipes, etc. Recesses 4 are provided at equal intervals. The core plate 1 is covered with a foamed synthetic resin layer 2, and an engaging protrusion 3 and an engaging recess 4 are formed on the peripheral side of the foamed synthetic resin layer 2.
A pipe fitting hole 9 is provided at a corresponding position. [Effect] By fitting the leg pipes and backrest support pipes into the corresponding insertion holes 9 and engaging them with the engagement protrusion 3 and the engagement recess 4, respectively, the leg pipes and the backrest support pipe can be easily attached to the seat plate 1. Can be installed. By supporting backrests of different shapes with pipes corresponding to the engagement recesses 4, chairs with different overall shapes can be assembled from seat plates of the same shape.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to the seat of a chair, especially the seat of a chair with a backrest.

0002

[Conventional technology and issues]

Traditionally, storing and transporting a large number of chairs with backrests as finished products costs a lot of money. Due to space requirements, the chair components such as the seat, legs and backrest were removed. It can be stored and transported in a compact state, disassembled individually, and easily assembled at the destination. Various chairs with backrests that can be moved have been proposed.

0003 The present applicant also previously proposed that the upper and lower ends of the seat plate (51) are open on the sides, as shown in FIG. A cylindrical leg connecting part (52) is provided, and a leg rod (53) is provided inside this connecting part (52). ), it can be easily assembled by fitting the end of the backrest support rod (54). (See Japanese Utility Model Publication No. 63-22926). However, in order to hold the leg rods (53) and backrest support rods (54) stably, The fitting part (53a) at the upper end of the leg rod (53) and the lower end of the backrest support rod (54) It is necessary to make the fitting part (54a) as long as possible, and the connecting part (52) should also be made accordingly. shall be of appropriate length. In particular, there are leg rods ( 53) and backrest support rod (54), the thickness of the seat plate should be the same. If the thickness is normal, the connecting portion (52) will protrude below or above the seat plate (51). I have no choice but to. This will prevent the protruding parts from stacking up many seat boards. Problems such as getting in the way and making stacking work during storage and transportation time-consuming. There was a problem.

0004 This idea was made with the aim of solving the problems mentioned above. In addition to being easy to assemble the chair, it is also easy to assemble the chair when it is disassembled. It can be stacked compactly during storage and transportation, and the leg and backrest rods can be easily stacked. The purpose is to provide a seat plate for a chair that can be held stably.

[0005]

[Means to solve the problem]

Therefore, in order to achieve the above purpose, the seat plate of the chair according to this invention has a core plate and a core plate. a foamed synthetic resin layer that completely covers the core plate, and a foamed synthetic resin layer that completely covers the core plate, and direction, and engages with the ends of the leg pipes, backrest support pipes, etc. in the distal direction. A required number of engaging protrusions or engaging recesses are provided at predetermined intervals, and A pad is placed on the circumferential surface of the foamed synthetic resin layer at a position corresponding to the engaging convex portion or the engaging concave portion. A configuration in which a pipe insertion hole is provided is adopted.

[0006]

【Example】

This invention will be explained below based on embodiments shown in the drawings.

[0007] The seat plate (A) according to this invention includes a core plate (1) and a core plate (1) that is completely covered. It is composed of a foamed synthetic resin layer (2).

[0008] The core plate (1) is made of die-cast aluminum alloy, and the entire body resembles an automobile wheel. 4 engagement protrusions that engage with the leg pipe (14) in the circumferential direction of its periphery. (3) (3) (3) (3) and four pieces that engage with the backrest support pipe (13). The engaging recesses (4) (4) (4) (4) are provided in an alternating arrangement at equal intervals. Ru.

[0009] That is, as shown in FIG. 2, the recesses ( 5) (5) (5) (5) is provided, and the inner depth of the recess (5) (5) (5) (5) is provided. A rod-shaped engagement protrusion (3) (3) ( 3) (3) is provided protruding toward the centrifugal direction. Each engaging protrusion (3) (3) (3 )(3) has multiple recesses (6)(6)(6) on its top surface as shown in Figure 1. A threaded hole (7) that is screwed in and has a female thread on the inner surface on the lower surface of the intermediate portion in the length direction. is provided. On the other hand, each of the engaging protrusions in the circumferential direction on the circumferential side of the core plate (1) (3) The end of the backrest support pipe (13) is inserted between the opening facing centrifugally. Engagement recesses (4) (4) (4) (4) are provided, and each engagement recess (4) (4) (4) A screw hole (4) with a female thread on the inner surface on the lower surface of the intermediate part in the length direction ( 8) is provided.

0010 The foamed synthetic resin layer (2) is made of foamed polyurethane or other synthetic resin. Therefore, it consists of a center layer (2a) and a surface skin layer (2b), and the core plate (1) is The entire surface of the seat plate (A) is coated to give the seat plate (A) a disk-like shape. (9) is The engaging protrusions (3) (3) (3) ( 3) and the pipe insert provided at the corresponding position to the engaging recess (4) (4) (4) (4). It is an entrance hole. This pipe insertion hole (9) allows the pipe to be inserted as shown in Figures 5 and 6. If the chair is not fitted, the cap (10) should be fitted to maintain the good appearance of the chair. be done. In addition, as shown in Figures 3 and 4, the lower surface of this foamed synthetic resin layer (2) is The engaging protrusion (3) (3) (3) (3) and the engaging recess (4) (4) (4) ( Screw insertion holes (11) are provided at positions corresponding to the screw holes (7) and (8) in 4). ing.

[0011] Figures 5 and 6 show the disassembled state and the completed assembled state of the chair using the seat plate (A) above. During storage and transportation before assembly, many chairs are disassembled like this. A large number of seat plates (A) are stacked on top of each other, and the backrest (B) and legs (C) are They are stored and transported in bundles. The backrest of the chair shown in Figure 5 ( B) consists of a wooden backrest part (12) formed in a semicircular shape, and the central part of its lower surface and Backrest support pipes (13) (13) (13) are attached to both left and right ends in a hanging manner. A bent part (13a) is formed at the lower end of each backrest support pipe (13). The bent portion (13a) can be fitted into the engagement recess (4) of the core plate (1). being done. In addition, the leg part (C) has four leg pipes (14) (14) (14) ( 14), each leg pipe (14) has a bent part (14a) formed at its upper end. , each of the engaging convex portions (3) of the core plate (1) can be fitted into the bent portion (14a). being done.

0012 Therefore, when assembling the chair from this disassembled state, first remove each leg piece. The upper end bent portion (14a) of the pulley (14) is inserted into a foamed joint at a position corresponding to the engaging convex portion (3). Insert into the pipe insertion hole (9) of the resin layer (2) and insert it inside the upper end bent part (14a). The engaging protrusion (3) is inserted and engaged, and the lower surface of the foamed synthetic resin layer (2) is Insert the screw (15) through the screw insertion hole (11) into the female threaded part of the engagement protrusion (3) and The leg pipe (1 4) Fix. Next, the lower end bent portion (13a) of each backrest support pipe (13) is ) in the foamed synthetic resin layer (2) at a position corresponding to the engagement recess (4). 9) and fit into the engaging recess (4), and also under the foamed synthetic resin layer (2). The screw (15) inserted through the screw hole (11) on the surface is inserted into the female thread part of the engagement recess (4) and Screw it into the female thread part at the corresponding position of the backrest support pipe bent part (13a), The assembly of this chair is completed by fixing the backrest support pipe (13). Complete.

[0013] The chair shown in Figure 7 has a different shape between the seat plate (A) and the backrest (C) shown in Figure 6. It is combined with a backrest (D). The backrest shown in this figure 7 (D) consists of a wooden backrest part (16) bent into an occluded circle and four backrest supports. It consists of holding pipes (17) (17) (18) (18), and two backrest supports. A retaining pipe (17) is fixed diagonally downward to the lower surface of the circumferential middle of the backrest (16). The lower end bent portion (not shown) is inserted into the engagement recess (4) of the core plate (1). ing. In addition, the other two backrest support pipes (18) (18) are connected to the backrest portion ( 16) is fixed to the sides of both left and right ends facing inward, and its tip (not shown) is attached to the core. It is fitted into the engagement recess (4) of the plate (1). And each backrest support pipe ( 17) (17) (18) Inserted from the bottom of the seat plate (A) into the insertion part of (18) The abutment of the tips of the screws and the structure of the legs are similar to the chair shown in FIG. 6. In Figure 8, two of the above seat plates (A) are used, and the seat plates (A) and the seat plates (A) are connected to each other by a connecting part. This figure shows a chair for two people connected by pipes (E). The connecting pipe (E) shows a straight tubular main body part (19) and a longitudinal intermediate part of this main body part (19). It is composed of legs (20) hanging down from the lower surface, and both ends of the main body (19) are attached to the seats. It is fitted into the engagement projections (3) (3) of the plates (A) (A). Therefore, each seat plate ( A) The leg pipe (14) is fitted into each of the remaining six engaging protrusions (3) in (A). It is. The backrest (D) is the same as the backrest (D) used in the chair shown in Figure 7 above. A backrest (D) (D) is used and is connected to a seat plate (A).

[0014] In addition, in the seat plate (A) of the above embodiment, the core plate (1) is engaged with the engagement protrusion (3). For example, the backrest support pipe (13) can be connected to the leg pipe. The core plate (1) should have the same diameter as the core plate (14), and the core plate (1) may have only the engagement protrusion (3) or Alternatively, on the contrary, only the engagement recess (4) is provided in the core plate (1), and the leg pipe (14) is connected to this. It is also possible to have an outer diameter corresponding to .

[0015]

[Effect of the idea]

According to the above, the seat plate (A) of the chair according to this invention includes a core plate (1) and this core plate. It consists of a foamed synthetic resin layer (2) that completely covers (1). Not only does it provide a good sitting comfort with plenty of cushioning, but also the core plate (1) In the circumferential direction of the circumferential side of the leg pipe (13) and the backrest support pipe in the distal direction (14), the required number of engaging convex portions (3) or engaging concave portions (4 ) are provided at predetermined intervals, and on the peripheral side of the foamed synthetic resin layer (2). The pipe fitting hole (9) is located at a position corresponding to the engaging protrusion (3) or the engaging recess (4) in the ), the seat plate (A), the leg pipe (14), and the backrest. Engagement with the support pipe (13) etc. can be easily performed, and the chair can be easily assembled. It can be made into something. Moreover, each of the backrests (B) and (D) with different shapes The support pipes (13), (17), and (18) are connected to the engagement uneven portions (13), (14) of the seat plate (A). ) so that either backrest can be attached to one type of seat plate (A). (B) and (D) can also be combined arbitrarily, and chairs with different backrest shapes can be combined. When assembling, there is no need to select the seat plate (A) that corresponds to the backrest (B) or (D). This makes it possible to assemble the chair rationally. Also, make the seat plate (A) Since only one type of mold is required for the production, manufacturing costs can be significantly reduced. . Furthermore, since the engagement is performed inside the seat plate (A), The engaging uneven parts (3) and (4) are made as long as possible without changing the appearance or shape. The engagement range can be extended by Not only is it convenient, but it can also be assembled in an extremely strong manner.

[0016] Furthermore, by forming the seat plate (A) into a disk-shaped flat piece, a large number of pieces can be made. The seat plates (A) of the above are designed to be easily stackable and stored in a disassembled state before assembly. It can provide convenience for transportation.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view with a part of the seat plate of the chair according to the invention cut away.

FIG. 2 is a bottom view of the core plate of the seat plate of the chair according to the invention.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2;

FIG. 5 is an exploded perspective view of a chair using the chair seat plate according to the invention.

FIG. 6 is an overall perspective view of the chair in FIG. 6 in a fully assembled state.

FIG. 7 is an exploded perspective view of another chair using the chair seat according to the invention.

FIG. 8 is an overall perspective view of a two-person chair using the seat plate of the invention.

FIG. 9 is a perspective view of a conventional chair in an exploded state.

[Explanation of symbols]

A... Seat board 1...Core plate 2...Foamed synthetic resin layer 2a...Central layer 2b...skin layer 3...Engagement convex part 4...Engagement recess 9...Pipe insertion hole 13, 17, 18... Backrest support pipe 14...Leg pipe

Claims (1)

[Scope of utility model registration request] 1. Consisting of a core plate and a foamed synthetic resin layer that completely covers the core plate and has a skin layer on the surface, a leg pipe is formed in the circumferential direction of the circumferential side of the core plate in the centrifugal direction. , a required number of engagement protrusions or engagement recesses that engage with the end portion of a pipe such as a backrest support pipe are provided at predetermined intervals, and the engagement protrusions or engagement recesses on the peripheral surface of the foamed synthetic resin layer are provided. A seat plate for a chair, characterized in that a pipe insertion hole is provided at a position corresponding to a mating recess.