JP5291439B2 - Protective structure of chair upholstery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce damage to upholstery covering the frame or inner shell of the seat or the like of a chair by a collision with an article and to prevent breakage of the upholstery. <P>SOLUTION: The protective structure is configured to protect the upholstery 2 covering the frame body 3 of the component of the chair in the state that tension is imparted and covering the frame body 3 by fitting an edge end member 1 attached to an edge end to a fitting part 3a provided on the frame body 3 and locking it. The edge end member 1 includes a hard part 1a and a soft part 1b, the hard part 1a is attached to the edge end on the back surface of the upholstery 2 in the state of being attached to the frame body 3 so that the soft part 1b of the edge end member 1 is directed to the inside of the upholstery 2, and in the state of attaching the upholstery 2 by covering the frame body 3 and fitting the hard part 1a to the fitting part 3a, the soft part 1b is interposed between the upholstery 2 and the frame body 3 at least at a part to collide with an external article in the using state of the chair. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a protection structure for a chair upholstery. More specifically, the present invention relates to a structure that protects a tension covering a chair component such as a chair seat or a backrest.

  As shown in FIG. 6, as a conventional structure for attaching a seat covering the chair seat and backrest, as shown in FIG. 6, tension is applied and the front surface of the frame 103 of the seat 103 and the backrest 104. There is one in which the periphery of the net member 102 that covers the frame 101 is wrapped around and attached to the frame 101 (Patent Document 1). As a method of fixing the net member 102 to the frame 101 in such a tensioned structure, for example, as shown in FIG. 7, an edge member 105 attached to the peripheral edge of the net member 102 is a frame. There is a method of fitting and locking in a concave groove 101a provided on the outer surface of 101.

JP 2006-110001 A

  However, in the upholstery mounting structure disclosed in Patent Document 1, the upholstery is put on a hard frame having sufficient strength as a chair seat or a backrest frame. When hit, a large amount of damage is done to the stretched area that is sandwiched between the external object and the frame. Therefore, when the chair is in use, the edge of the seat hits the foot / post of the desk many times, and the edge of the backrest hits the edge of the top of the desk, for example, repeatedly. Then fraying and tearing will occur. In addition, when covering a chair seat or the like, the tension is applied to the tension as in the tensioning structure of Patent Document 1, so fraying or tearing occurs from a point where the strength has fallen even slightly due to slight damage. Then it spreads rapidly. And the appearance is greatly impaired by the damage of the tension material on the surface of the component parts of the chair, and the life as a product is shortened.

  Therefore, the present invention provides a protection for a chair tension fabric that can prevent damage to the tension fabric covering the frame or inner shell of the chair seat or the like due to the impact of an external object and prevent the tension fabric from being torn. The purpose is to provide a structure. In the following, a frame or inner shell of a component such as a chair seat or a backrest is referred to as a frame.

  In order to achieve such an object, the protection structure of the chair tension fabric according to claim 1 covers the frame of the chair component part in a state where tension is applied, and includes the edge member attached to the edge. Is a protective structure for covering the frame by fitting and engaging with the fitting portion provided on the frame, and the edge member is composed of a hard portion and a soft portion, and is attached to the frame. At least the hard part is attached to the edge of the back of the tension fabric so that the soft part of the edge member faces the inside of the tension fabric, covering the frame body and fitting the rigid part to the fitting part and attaching the tension fabric In a state where the chair is used, at least a portion that collides with an external object has a soft portion interposed between the tension fabric and the frame.

  Therefore, according to the protection structure of the tension fabric of this chair, even if it is a structure that covers and attaches the tension fabric directly to the frame body, since a soft member is interposed between the tension fabric and the frame body, When an external object hits, the soft member functions as a buffer member and deforms (specifically, dents) to absorb the impact and damage to the stretched material sandwiched between the external object and the frame Is reduced.

  Further, according to the protection structure of the chair tension fabric, the tension fabric is attached by covering the frame of the chair components and fitting and locking the edge member to the fitting portion provided on the frame. In addition, only the configuration originally required for the frame body, that is, the frame body has a structure that protects the tension fabric without requiring any special processing or mechanism.

  Further, according to the protection structure of the chair tension fabric, the tension fabric is attached by covering the frame of the chair components and fitting and locking the edge member to the fitting portion provided on the frame. A structure that protects the upholstery is formed only by the processes that are originally required, that is, without requiring a new process.

  Furthermore, if the seated person sits on the seat or leans on the backrest, a load is applied to the tension fabric and friction is generated at the contact portion between the tension fabric and the frame body. According to the protective structure, since a soft member is interposed between the tension fabric and the frame body, when a load is applied to the tension fabric, the soft member is recessed to reduce the frictional force.

  The invention according to claim 2 is such that the hard portion and the soft portion are integrally formed in the protective structure of the chair stretch according to claim 1. In this case, only the members that are originally needed when covering the frame of the chair component and attaching the tension member by fitting the edge member to the fitting portion provided on the frame and locking it. In other words, a structure that protects the upholstery is formed without the need for a new member.

  According to a third aspect of the present invention, in the protective structure for the chair stretch according to the first aspect, the contact surface between the hard portion and the soft portion is formed in an arc shape. In this case, the contact area between the hard part and the soft part increases.

  According to a fourth aspect of the present invention, in the protection structure for a chair stretch according to the first aspect, the hard portion has an elongated thin plate shape and the fitting portion is a concave groove into which the elongated thin plate is fitted. ing. In this case, it is possible to relatively easily form the hard portion and the fitting portion and attach the tension fabric.

  According to the protection structure of the chair stretch according to claim 1, when an external object hits, the soft member functions as a buffer member and deforms to absorb the impact and thereby to the external object and the frame. Since the damage to the pinched tension can be reduced, it is possible to prevent the tear of the tension and improve the durability of the chair and to continue good appearance and comfortable use for a long time become.

  In addition, according to the protection structure for the chair stretch according to claim 1, the frame does not require any special processing or mechanism, that is, the structure for protecting the tension using the same frame as in the prior art. Therefore, the versatility is high.

  Further, according to the protection structure of the chair tension fabric according to claim 1, a new process is not required for the process originally required for attaching the tension fabric to the frame body. Can be constructed as it is to protect the upholstery, so it is highly versatile.

  Furthermore, according to the protection structure for the tension fabric of the chair according to claim 1, since the soft member interposed between the tension fabric and the frame body can be recessed, the frictional force can be reduced. Further, it is possible to prevent the tearing of the tension and improve the durability of the chair, and to continue the good appearance and the comfortable use over a long period of time.

  Moreover, according to the protection structure of the tension fabric of the chair according to claim 2, a new member is not required for the member originally required for attaching the tension fabric to the frame body, that is, the number of parts is Since the structure that protects the upholstery can be configured as it is, it is highly versatile.

  Moreover, according to the protection structure of the tension area of the chair according to claim 3, since the contact area between the hard portion and the soft portion increases, it is possible to prevent the two from peeling off by increasing the binding force between the two. it can.

  Moreover, according to the protection structure of the tension area of the chair according to claim 4, it is possible to relatively easily form the hard part and the fitting part and attach the tension area, thereby reducing labor. it can.

  Hereinafter, the configuration of the present invention will be described in detail based on the best mode shown in the drawings.

  FIG.1 and FIG.2 shows an example of embodiment of the protection structure of the tension fabric of the chair of this invention. The protective structure of the chair tension fabric covers the frame 3 of the chair component in a state where tension is applied, and the fitting member 3a provided on the frame 3 with the edge member 1 attached to the edge. Is a protective structure of the tension fabric 2 that covers the frame body 3 by being fitted and locked to the frame body 3, wherein the edge member 1 is composed of a hard portion 1 a and a soft portion 1 b and is attached to the frame body 3. The hard part 1a is attached to the edge of the back surface of the ground 2 so that the soft part 1b of the edge member 1 faces the inside of the stretched cloth 2, and covers the frame 3 and fits the hard part 1a to the fitting part 3a. In the state where the upholstery fabric 2 is attached, the soft portion 1b is interposed between the upholstery fabric 2 and the frame 3 at least in a portion where it strikes against an external object when the chair is in use.

  In addition, this invention is applicable when attaching a tension fabric to components, such as a chair seat, a backrest, a headrest, and an armrest. Specifically, for example, the present invention can be applied to the case where the front surface of the frame 101 of the chair seat 103 or the backrest 104 shown in FIG. 6 is covered with a stretched fabric (reference numeral 102 in FIG. 7).

  In this embodiment, the edge member 1 is formed into a thin and thin plate shape as a whole, and is divided into a longitudinal belt shape, and includes a hard portion 1a as a locking member and a soft portion 1b as a buffer member. In the present embodiment, the hard portion 1a and the soft portion 1b are molded as a single body by two-color simultaneous molding.

  When the edge member 1 is composed of the hard portion 1a and the soft portion 1b, the contact surface that is the boundary between the two materials may be a surface along the thickness direction of the edge member 1 (that is, a member vertical cross section). Considering that the materials are different, the area of the contact surface 1c between the hard part 1a and the soft part 1b may be devised in order to increase the coupling force between them and prevent peeling. Specifically, the contact surface 1c of both is formed into an arc shape (FIG. 3A), a wedge shape (and an inverted wedge shape) (FIG. 3B), or an inclined surface with respect to the thickness direction of the member. Or (FIG. 3C). Such a shape is desirable because the contact area can be increased compared to the case of a surface along the thickness direction of the member (that is, a member vertical cross section). If both contact surfaces 1c are formed in an arc shape, the contact area between the hard portion 1a and the soft portion 1b is increased and the bending of the soft portion 1b can be followed, so that the peeling of the both is prevented and the contact surface More desirable as a shape.

  In addition, the shaping | molding of the edge member 1 is not restricted to integral shaping | molding by 2 color simultaneous shaping | molding. That is, the hard portion 1a and the soft portion 1b may be separately molded and then bonded by adhesion, welding, or the like.

  The hard portion 1a is attached to the edge portion of the tension fabric 2, and is provided in a groove 3a as a fitting portion provided in the frame body 3 in a state where tension is applied and the tension fabric 2 is covered with the frame body 3. It is fitted and functions as a locking member in a state where it is fitted in the groove 3 a by the tension of the tension fabric 2, and the tension fabric 2 is attached to the frame body 3. For this reason, the hard part 1a is formed with the material which has the hardness of the grade which cannot be bent easily so that it may not remove | deviate from the state engage | inserted by the concave groove 3a. Specifically, the hard part 1a is formed of a synthetic resin having a predetermined hardness, and is formed of, for example, polypropylene.

  In the present embodiment, the hard portion 1a has an elongated and thin plate shape, and a concave groove 3a for fitting the elongated and thin plate is formed as a fitting portion on the frame 3 side. However, the hard portion 1a is formed. In other words, the shape of the hard part 1a and the fitting part 3a is not limited to this. Specifically, for example, the rigid portion 1a is formed into a U-shaped member and a fitting portion 3a having a convex portion for fitting the U-shaped member is provided on the frame body 3 (FIGS. 4A and 4B). It is conceivable that the rigid portion 1a is made into an L-shaped member and the fitting portion 3a having a recess for fitting the L-shaped member is provided on the frame body 3 (FIG. 4C).

  The soft portion 1b is interposed between the tension fabric 2 and the frame body 3 in a state where the tension fabric 2 is attached to the frame body 3, and functions as a buffer member against collision of external objects. For this reason, the soft part 1b is formed with the raw material which is softer than the frame material 3, and has elasticity. In other words, when the frame 3 formed of a relatively hard material and an external object such as a desk top plate collide with each other, the external object is prevented from being damaged by being sandwiched between them. It is formed of a material having elasticity that can relieve the impact of an external object collision received by the stretched fabric 2 by being deformed (specifically, recessed) when it hits. Specifically, for example, it is formed of an elastomer material.

  In the present embodiment, the entire edge member 1 composed of the hard portion 1a and the soft portion 1b is formed as an elongated thin plate, but when the edge member 1 is attached, the soft portion 1b is placed. The edge member 1 as a whole is formed into an L shape (FIG. 5 (A)) in consideration of making it fit in advance with the shape of the frame body 3 to be attached and facilitating the mounting. (FIG. 5B) may be used.

  The edge member 1 is attached along the periphery of the back surface in the state attached to the frame material 3 of the upholstery 2. In addition, the edge member 1 is configured such that at least the hard portion 1a is coupled to the edge of the tension fabric 2 in a state where the soft portion 1b of the edge member 1 faces the inner side of the tension fabric 2. Attached to the upholstery 2 Note that the method of joining the hard portion 1a (and the soft portion 1b) to the tension fabric 2 is not limited to a specific method, and specifically, for example, joining is performed by sewing, adhesion, welding, or the like.

  The edge member 1 composed of the hard part 1a and the soft part 1b arranged and attached in this manner covers the frame body 3 and the groove 3a provided in the frame body 3 with the hard part 1a of the edge member 1. When fitted and locked, the tension fabric 2 is attached to the frame body 3 with the soft portion 1 b interposed between the tension fabric 2 and the frame body 3.

  As a result, the protective structure for the tensioned fabric is configured in which the soft portion 1b functions as a buffer member to absorb the impact caused by the collision of an external object and reduce the damage given to the tensioned fabric 2.

  In the present invention, it is only necessary to interpose at least the soft portion 1b of the edge member 1 between the upholstery 2 and the frame 3 with respect to a portion that collides with an external object when the chair is in use. Therefore, from the viewpoint that the soft part 1b should be interposed at least in the part that collides with an external object, the soft part together with the hard part 1a of the peripheral member 1 attached in a strip shape along the peripheral edge of the stretched fabric 2 What is necessary is just to set the range which provides 1b suitably, or to set the length (namely, extension length from the hard part 1a) of the soft part 1b suitably. That is, it is not an essential requirement of the present invention to provide the soft portion 1b over the entire hard portion 1a as a locking member attached along the periphery of the tension fabric 2, and in the present invention, the soft portion 1b The length is not limited to a specific length. Furthermore, the thickness of the soft portion 1b may be appropriately adjusted to a thickness that can appropriately absorb the impact caused by the collision of an external object in consideration of the material of the soft portion 1b, and is limited to a specific thickness. Is not to be done.

  According to the protection structure of the chair tension fabric of the present invention configured as described above, the soft portion 1b of the edge member 1 is interposed between the tension fabric 2 and the frame 3, so that When the object hits, the soft part 1b absorbs the impact and can reduce the damage given to the tensioned material 2 sandwiched between the outer object and the frame 3, and the chair is prevented from breaking the tensioned material. As a result, it is possible to improve the durability of the battery and to continue good appearance and comfortable use over a long period of time.

  In addition, although the above-mentioned form is an example of the suitable form of this invention, it is not limited to this, A various deformation | transformation implementation is possible in the range which does not deviate from the summary of this invention. For example, in the present embodiment, the frame body 3 having the cross-sectional structure shown in FIG. 1 has been described as an example. It is not limited. In other words, even when the cross-sectional structure of the frame and the position of the fitting portion 3a (the concave groove 3a in FIG. 1) are different from the configuration shown in FIG. The effect of the present invention can be exhibited if the soft part 1b of the edge member 1 is interposed between at least the tension fabric 2 and the frame body 3 at the part that collides with an external object in the state of use. It is.

It is a figure which shows an example of embodiment of the protection structure of the tension fabric of the chair of this invention, and is sectional drawing of the part in which the soft part of the edge member is interposed. It is a side view of the edge member used for the protection structure of the tension fabric of the chair of an embodiment. It is a figure explaining the shape of the contact surface of a hard part and a soft part. It is a figure explaining the shape of the edge member of a tension fabric, and the fitting part of a frame. It is a figure explaining the shape of a soft part. It is a perspective view which shows the tension structure of the conventional tension fabric. It is sectional drawing which shows the attachment structure of the conventional tension fabric.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Edge member 1a Hard part 1b Soft part 2 Tension ground 3 Frame 3a Fitting part (concave groove)

Claims (4)

  Covering the frame of the chair component in a state where tension is applied, and fitting the edge member attached to the edge to the fitting portion provided on the frame to lock the frame A covering structure for covering the covering material, wherein the edge member is composed of a hard part and a soft part, and the soft part of the edge member is provided at the edge of the back surface of the covering material attached to the frame. At least the hard part is attached so as to face the inside of the upholstery, and in the state of use of the chair in a state of covering the frame and fitting the hard part to the fitting part and attaching the upholstery. A protection structure for a chair tension fabric, wherein the soft portion is interposed between the tension fabric and the frame body in a portion that collides with an external object.   The protective structure for a chair tension fabric according to claim 1, wherein the hard portion and the soft portion are integrally formed.   2. The structure for protecting a chair stretch according to claim 1, wherein a contact surface between the hard part and the soft part has an arc shape.   The protection structure for a chair stretch according to claim 1, wherein the hard portion has an elongated thin plate shape and the fitting portion is a concave groove into which the elongated thin plate is fitted.