JP2001161509A - Seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent breakage of an opening for inserting or removing a fastening string and prolong the life of a stretched sheet in the seat so constituted that it is provided with the seat body and the stretched sheet covering the seat body while leaving the central part of the rear face and the flexible fastening string is inserted into through holes formed at the periphery of the stretched sheet and both ends of the fastening string drawn from the opening of inserting or removing the string, formed at the through hole and tightening the fastening string to constrict the peripheral edge and fit the stretched sheet to the seat body. SOLUTION: A restraint part 8 capable of bringing each draw-out part 71, 71 of the fastening string 7 close to each other or bringing it into contact with each other is formed in the vicinity of the opening 61 for inserting or removing the string of the rear face 4a of the seat body 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat in which a seat body is covered with a removable upholstery.

[0002]

2. Description of the Related Art This type of seat allows only the upholstery to be detached from the seat body to enable cleaning and replacement of the upholstery, and is suitable for dirt or damage to the upholstery, or separation and disposal of the seat body. It is intended to respond. Then
If a fastener or a resin part such as a resin molded product is sewn on the upholstered fabric to make this upholstery removable, other clothing may be damaged by the zipper or the like during cleaning.

[0003] In order to solve such a problem at the time of cleaning, a flexible tightening cord is passed through a through-hole formed on the peripheral edge of the upholstery, and is provided in the through-hole. It has also been considered that both ends of the tightening string are pulled out from the insertion opening, and the tightening string is tensioned to narrow the peripheral portion and attach the upholstery to the seat body.

[0004]

However, with such a structure, when the tightening cord is pulled out from the insertion / extraction opening and pulled, it is likely that the tightening cord is extended to the insertion / removal opening by the drawn-out portion of the tightening cord. Force acts. As a result, while the tightening cord is being pulled with an excessive force or used over time, the insertion opening may be torn or torn, making it impossible to use the upholstery.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a restraining portion for bringing the draw-out portions of the fastening string into or out of contact with each other, thereby preventing breakage of the opening and closing of the upholstery. It is intended to promote longer life.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A seat according to the present invention comprises a seat body and an upholstery covering the back of the seat body except for a central portion of a back surface thereof, and a through-hole formed at a peripheral portion of the upholstery. Through a flexible tightening string, pull out both ends of the tightening string from an insertion / removal opening provided in the through portion, and tighten the tightening string, thereby removing the peripheral edge. A restricting portion which is configured to attach the seating body to the seat body in a narrowed and stretched manner, wherein the drawer portions of the tightening cord can be brought close to or in contact with each other in the vicinity of the insertion opening of the seat body. Is provided.

[0007] In such a case, by using the restraining portion, each of the drawn-out portions of the tightening cord can be pulled while approaching or contacting each other. Thus, the force for widening the insertion opening can be reduced. Therefore, even if the tightening cord is strongly pulled or used over time, it is possible to effectively prevent the vicinity of the insertion / removal opening of the through portion from being torn or torn, which can contribute to a longer life.

As a specific embodiment of the restraining portion that can be realized with a simple configuration, the restraining portion has a gap having a width that allows the drawn-out portions of the tightening cord to pass through by approaching or in contact with each other. Can be mentioned. In this case, in order that the draw-out portion of the tightening cord can be easily passed through the gap of the restraint portion, and that the draw-out portion can be reliably held in the restraint portion, the restraint portion must be seated. A pair of resin-made restraining claws projecting from the back surface of the main body, and each of the restraining claws is provided with a claw body and a support portion integrally provided at an upper end of the claw body, It is desirable that the claw bodies of the restraining claws be brought into contact with or close to each other, and that the gap be formed between the support portions.

In order to hold the excess portion of the tightening string and easily maintain the tightened state of the tightening string, the tightening string passed through the restraining portion is preferably restrained in the seat body. It is preferable that a hook portion that can be hooked with a tightening cord drawn out through the restraining portion is provided at a portion separated from the portion. Specifically, there is one in which hook portions are respectively arranged on both sides of the restraining portion.

In order to be able to flexibly cope with the length of the surplus portion of the tightening cord drawn out from the insertion opening, the hook portion is
It is preferable that the hook comprises a plurality of hooks protruding from the back surface of the seat body, and the hooks are arranged at different distances from the restraining portion.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a chair 10 according to the present embodiment. As shown in FIG. 1, the chair 10 includes a leg 3 having, for example, a leg support 31 and leg fins 32 extending radially from a lower end of the leg support 31, and a seat 2 and a back supported by the leg 3. 1 is provided.

The seat 2 has a seat body 4 and an upholstery 5 attached to the seat body 4. The seat body 4 is composed of a base 4b and a cushion (not shown) arranged on the upper end of the base 4b.
It is pivotably supported by the upper end of the first member. Upholstery 5
Is made of, for example, cloth, which covers the seat body 4 except for the central portion of the back surface 4a, as shown in FIGS. 2, 3 and 4, and has a bag 63 that goes around the peripheral edge portion 5a. The flexible fastening string 7 is passed through the threaded portion 6 formed as described above, and both ends of the fastening string 7 are pulled out from the insertion / removal opening 61 provided at the center of the front end of the threaded portion 6. By tightening the tightening cord 7, the peripheral portion 5a is narrowed and attached to the seat body 4. The through-hole 6 has slits 6 at a plurality of positions other than the insertion / removal opening 61.
2 are provided so that the tightening cords 7 passing through the slits 62 can be hooked on the inward claws T. This is to prevent a part of the upholstery 5 from being rolled up by an unexpected external force. An outer shell or the like is attached to the seat body 4 to which the upholstery 5 is attached so as to cover at least the peripheral edge 5a of the upholstery 5.

In this embodiment, however, in the vicinity of the insertion / removal opening 61 in the seat body 4, each of the pull-out portions 71,
Restraining portions 8 that allow the 72 to be close to or in contact with each other
Is provided. As shown in FIGS. 3 and 4, the restraining portion 8 is composed of a pair of resin restraining claws 81 which are integrally hung from the bottom surface of the concave portion 4c opened on the back surface 4a of the seat body 4. It is arranged substantially above 61. When the upholstery 5 is attached to the seat body 4, the upholstery 5 is covered by the upholstery 5.

The restraining claw 81 is a thin plate having its thickness direction aligned with the front-rear direction, and has a substantially semicircular claw body 81a which expands downward in a front view;
A support portion 81b is provided on the upper end of the claw body 81a on the outer side. The opposing inner edges of each claw body 81a are brought into contact with or close to each other, and a gap S having a constant width is formed between the inner edges of the support portion 81b. The width of the gap S is set to a size that allows the drawn-out portions 71 and 72 of the tightening cord 7 to pass close to or in contact with each other. The hanging dimension of the restraining claw 81 is set to be substantially the same as or slightly smaller than the depth dimension of the concave portion 4c.

Further, in the present embodiment, hook portions 9 are arranged on both sides of the restraining portion 8 at a predetermined distance from each other. Each of the hooks 9 is formed of a pair of resin hooks 9 which are integrally hung from a bottom surface of a concave portion 4c opening on the back surface 4a of the seat body 4.
Consists of one. The hooking claw 91 is a thin plate having a supporting portion 91b and a claw main body 91a integrally provided at a tip of the supporting portion 91b so as to protrude outward. These hooking claws 91 are arranged close to each other so as to be parallel to each other, and their thickness directions are substantially aligned in the front-back direction. Further, the separation distance of each hooking claw 91 from the restraining portion 8 is different from each other.

In order to tighten the tightening cord 7 and attach the upholstery 5 to the seat body 4 by using the restraining portion 8 or the hooking portion 9 according to the present embodiment configured as described above, for example, To do. First, the draw-out portions 71 and 72 of the tightening cord 7 drawn out from the insertion / removal opening 61 are respectively passed through the gap S from the front to the rear. At this time, the restraining claws 81
The draw-out portions 71 and 72 of the tightening string 7 may be directly inserted into the gap S from between the claw body 81a and the tightening string 7 while the claw body 81a is elastically deformed or the tightening string 7 is deformed flat.

Next, the tightening cord 7 pulled out through the gap S is hooked and fixed to the hook 9 while being pulled and tightened. For this purpose, as shown in FIGS. 5 and 6, both ends of the tightening string 7 are connected to form a ring, and the hooking claw that can tighten the tightening string 7 depending on the size of the ring. 9 by doing so. Of course, the knot may be formed while the tightening cord 7 is hung on the hooking claw 9 to make the knot tight. You may wind and fix each front-end | tip part of the attachment string 7, and may fix it. Thus, in the state where the tightening string 7 is fixed in this way, the pull-out portion 7 of the tightening string 7
1 and 72 are mainly hooked on the upward surface 81c of the claw body 81a constituting the restraining claw 81.

Therefore, in such a case, by using the restraining portion 8, the respective drawn portions 71 and 72 of the tightening cord 7 can be pulled while approaching or contacting each other. A draw-out portion 71 of the string 7;
The force exerted on the insertion opening 61 by the opening 72 can be reduced. Therefore, even if the tightening cord 7 is strongly pulled or used over time, the insertion / removal opening 61 of the through portion 6
The vicinity can be effectively prevented from being torn or torn, which can contribute to an increase in the life of the upholstery 5.

In particular, in the present embodiment, the restraining portion 8 is formed by abutting a pair of restraining claws 81 which can be elastically deformed. From the antinode, it is possible to pass through the gap S formed in the restraining portion 8. Further, by using the plurality of hooks 91, the proper tightening cord 7 can be fixed in accordance with the excess length of the tightening cord 7. Therefore, such a configuration also has an effect that the work of attaching the upholstery 5 by tensioning the fastening cord 7 is also facilitated.

The present invention is not limited to the above embodiment. For example, the constraining portion may be of a gate type, and the position of the constraining portion is not limited to the front central portion of the seat, and it is needless to say that the constraining portion can be changed according to the portion where the insertion opening is provided. In addition, the hook portion only needs to be able to fix the end portion of the tightening cord, and its disposition position may be set to a portion suitable for being provided, such as a rear portion other than the side of the restraining portion. Furthermore, the fastening string may be fixed by a method other than the above embodiment.

The specific configuration of the other parts is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0022]

As described above in detail, according to the present invention, by using the restraining portion, the respective drawn portions of the tightening cord can be pulled while approaching or contacting each other. It is possible to reduce the force exerted by the draw-out portion of the attachment strip to widen the insertion opening. Therefore, even if the tightening cord is strongly pulled or used over time, it is possible to effectively prevent the vicinity of the insertion / removal opening of the through portion from being torn or torn, which can contribute to a longer life.

If the restraining portion has a gap having a width that allows the drawn-out portions of the tightening cords to pass through each other in close proximity or in contact with each other, a simple configuration can be realized. More specifically, the restraining portion is formed of a pair of resin restraining claws protruding from the back surface of the seat body, and each of the restraining claws is provided integrally with the claw body and the upper end of the claw body, respectively. It is conceivable that a configuration is adopted in which a supporting portion is provided, and the claw bodies of the restraining claws are brought into contact with or close to each other, and the gap is formed between the supporting portions. However, with such a structure, the drawn-out portion of the tightening cord can be easily passed through the gap between the restraining portions, and the drawn-out portion can be securely and easily held in the restraining portion.

At a portion of the seat body where the tightening string passed through the restraining portion is preferably separated from the restraining portion, a hook portion capable of hooking the tightening string drawn through the restraining portion is provided. If it is, an excess portion of the tightening string can be held and the tightened state of the tightening string can be easily maintained. In particular, if the hooking portions are respectively arranged on both sides of the restraining portion, it becomes easy to tighten the tightening string.

On the other hand, if the hook is composed of a plurality of hooks protruding from the back surface of the seat body, and these hooks are arranged at different distances from the restraining portion, the insertion / removal opening is provided. Can flexibly cope with the length of the surplus portion of the tightening cord drawn out from the device.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a chair according to an embodiment of the present invention.

FIG. 2 is a bottom view of the chair according to the embodiment, particularly showing an outer peripheral edge thereof;

FIG. 3 is a partial perspective view showing a front edge of a seat of the chair in the embodiment, as viewed from a lower rear side.

FIG. 4 is a schematic partial longitudinal sectional view taken at the center of a chair seat in the embodiment.

FIG. 5 is a schematic explanatory view showing a state in which the fastening cord in the embodiment is fixed, as viewed from below.

FIG. 6 is a schematic explanatory view showing a state in which the fastening string in the embodiment is fixed, as viewed from below.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 ... Seat 4 ... Seat main body 4a ... Back surface 5 ... Stretched ground 5a ... Peripheral edge 6 ... Passing part 7 ... Tightening string 61 ... Insertion / extraction opening 71, 72 ... Pull-out part 8 ... Restricted part S ... Gap 81 ... Restricted claw 81a ... claw body 81b ... support part 9 ... hook part 91 ... hook nail

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Fumihiro Kurata 5331 Nishiharu Kinoshita-Kawara, Ina-shi, Nagano Furniture Development Department, Takano Co., Ltd. Inside

Claims (6)

[Claims] A seat body and an upholstery covering the back of the seat body except for a central portion of a back surface thereof, wherein a tightening cord is passed through a through portion formed in a peripheral portion of the upholstery. By pulling out both ends of the tightening string from the insertion / removal opening provided in the through portion and tightening the tightening string, the peripheral portion is narrowed,
The upholstery is configured to be attached to the seat body, and a restraining portion is provided at a portion of the seat body near the insertion / removal opening so that the draw-out portions of the tightening cord can be brought close to or in contact with each other. A seat characterized by that. 2. The chair according to claim 1, wherein the restraining portion has a gap having a width that allows the drawn-out portions of the tightening cords to pass through each other close to or in contact with each other. 3. The supporting portion, wherein the restraining portion comprises a pair of restraining claws projecting downward from the seat body, and each of the restraining claws is provided integrally with the claw body and the upper end of the claw body. 3. The chair according to claim 2, wherein the claw bodies of the restraining claws are brought into contact with or close to each other, and the gap is formed between the support portions. 4. 4. The seat according to claim 1, wherein a hook portion is provided at a portion of the seat body separated from the restraining portion, the hook portion being capable of hooking a tightening string drawn through the restraining portion. . 5. The seat according to claim 4, wherein the hook portions are disposed on both sides of the restraining portion. 6. A catching portion comprising a plurality of catching claws projecting downward from a seat body, wherein each of the catching claws is arranged at a different distance from the restraining portion.
The seat described.