JPH08959Y2 - Chair member upholstery member terminal treatment structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a structure for processing an upholstery member of a chair member.

(Prior Art) In a chair member, a cushion member supported by a chair frame is covered with an upholstery member, and a terminal portion of the upholstery member is engaged and fixed to an engaging portion formed on the frame. As shown in Japanese Utility Model Laid-Open No. 47-32410 (Fig. 7) and Japanese Utility Model Publication No. 54-32643 (Fig. 8), the upper member end treatment structure is provided in a groove formed in the peripheral portion of the frame. There is a structure for inserting and fixing an elongated piece attached to the terminal portion. Particularly, in the latter case, even if the groove is curved, the elongated piece of the engaging body freely follows the curvature of this groove, so that the frame is formed. Even at the corner portion, there is an excellent advantage that wrinkles do not easily appear on the upholstery member around which the engaging body is attached, and a beautiful chair member can be provided.

Further, the similar technique as shown in FIG. 11 (Japanese Utility Model Laid-Open No. 64-4250) can easily lock an engaging body having a J-shaped cross section attached to the end portion to the engaging portion of the chair frame. It has the great advantage of being easy to do.

(Problems to be Solved by the Invention) However, the above-mentioned conventional techniques have the following problems.

In the conventional technique, the terminal portion is rolled up and inserted into the groove so that the edge portion of the terminal portion faces the bottom surface of the groove, so that once the terminal portion is gripped, the engaging body is inserted into the groove. After pulling and bringing them close to each other, it is necessary to re-grip the end portion and change the posture of the engaging body so that the edge portion faces the bottom surface of the groove, and insert the end portion into the groove. There is a problem that this work is extremely complicated, the muscle load on the fingers is high, and the worker may have muscle pain or arthritis. The above-mentioned work involved complicated operations and could not be mechanized.

Further, in the similar technique, wrinkles are likely to appear at the corners of the chair frame, and the appearance of the chair member may be significantly deteriorated.

The present invention has been made to solve the above problems, and a cushion member supported by a chair frame is covered with an upholstery member, and the end portion of the upholstery member is formed into an engaging portion formed on the frame. It is an object of the present invention to provide an upholstery member end treatment structure for a chair member which can be easily engaged and fixed with one touch and which is a beautiful chair member without wrinkles and which is easy to mechanize.

(Means for Solving the Problems) The upper member end treatment structure for a chair member according to the present invention that can achieve the above object covers a cushion member supported by a chair frame with the upper member, and An upper tension member end treatment structure for a chair member for engaging and fixing a flexible engaging body having a flat cross section attached to an end portion of the tension member to an engagement portion formed on the frame. The engaging body is formed with an engaged portion that is locked to the engaging portion and a grasping portion that is opposite to the engaged portion and that can be grasped by appropriate means. The engaging portion of the engaging body is held by the engaging portion.

(Operation) In the upper member end treatment structure for a chair member according to the present invention having the above-described configuration, the flat engaging body is integrally attached to the end portion of the upper member so that the engaged portion and the engaged portion are And a gripping portion which is on the opposite side of the chair frame and which can be gripped by appropriate means is formed. Is pulled to lock the engaged portion to the engaging portion and then the grip portion is released, so that the terminal portion is engaged and fixed to the engaging portion.

(Effect of the Invention) According to the present invention having the above-mentioned configuration, a flat-shaped engaging body is integrally attached to the end portion of the upholstery member, and the engaged portion is provided on the opposite side of the engaged portion. Since the gripping portion that can be gripped is formed, the gripping portion can be recognized from the outside of the upholstery member and can be gripped from the outside of the upholstery member.

 Therefore, it is easy to grip.

Further, the engaging body can be easily brought close to the engaging portion of the chair frame while the grasping portion is held, and the engaged portion can be easily locked to the engaging portion.

As a result, it becomes possible to mechanize the work of locking the engagement body to the engagement portion. Further, even if the same work is performed manually without relying on mechanization, muscle fatigue of fingers is reduced.

Further, when the upholstery member is removed during reattachment, even if the engaged portion is locked to the engaging portion, the grasping portion is exposed from the engaging portion, and therefore the grasping portion is grasped. By moving the engaged portion, the engaged portion can be easily removed from the engaging portion.

(Embodiment) Embodiment 1 An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view of a chair to which a chair member end treatment structure of a chair member according to the present invention is applied, and FIG. 2 is an AA of FIG.
An enlarged sectional view, FIG. 3 is an enlarged sectional view of the terminal portion of the upholstery member according to this embodiment.

The chair 1 is integrally attached to the top plate portion 7a, a convex portion 7c projecting at a predetermined position above the peripheral edge of the top plate portion 7a, and a lower peripheral portion so as to be circumferentially provided and has a substantially inverted U-shaped cross section. A chair frame 7 including an elastic engaging member 6 in which an engaging groove 6b is formed as an engaging portion and a leg portion 7b, a spring member 8 mounted at a required position of the convex portion 7c, and the frame. A cushion member 9 formed in a predetermined shape in conformity with the shape of the chair 1 placed and supported on the upper surface of the spring member 8 via the spring member 8, and a terminal formed by covering the cushion member 9 having a predetermined shape. Made of plastic and has a rectangular cross section, and one side of the short piece is R
The end portion is composed of the upholstery member 2 which is engaged and fixed in the engaging groove 6b through the engaging body 5 made of the strip.

A protrusion 6a protruding toward the outer wall is formed at the center of the inner wall of the engagement groove 6b, and the lower portion of the engagement body 5 is covered by the end portion of the upholstery member 2 to form the end portion. The vicinity of the edge of the upper end of the upholstery member 2 is sewn via the engagement body 5 and the engagement body 5 is attached to the inside of the end of the upholstery member 2. A lower part of the engaging body 5 below the sewing line 3 is a gripping part 4, while an upper part facing the gripping part 4 through the sewing line 3 is an engaged part 5a, and the projecting part is formed inward. A groove 5b having a concave cross section corresponding to 6a is provided in the longitudinal direction so that the engaged portion 5a is inserted into the engaging groove 6b, and the protrusion 6a is inserted into the groove 5b.

The length 1 of the engaged portion 5a is longer than the height h of the outer wall of the engaging groove 6b, and the edge portion of the outer wall damages the end portion of the upper member 2. It is supposed to prevent.

Further, the lower part of the engaging body 5 is covered with the end portion of the upper member 2 and sewn to hide the engaging body 5, thereby improving the appearance.

The material of the strip may be a synthetic resin having strength and elasticity such as propylene-ethylene copolymer, ethylene-vinyl acetate copolymer, polypropylene, high-density polyethylene, and hard vinyl chloride, and extrusion molding method and the like. Is molded by.

Further, the method of connecting the terminal portion and the strip may be welding or adhesion instead of sewing.

In the above configuration, in order to engage and fix the terminal portion with the engaging member 6, the cushion member 9 placed and supported on the upper portion of the chair frame 7 and having a predetermined shape corresponds to the cushion member 9. Then, the upper member 2 having a predetermined shape is covered at a predetermined position, and then the grip portion 4 is gripped by an appropriate means such as a hand or a dedicated tool, and is drawn below the engaging member 6 to engage the engaged member 6. The tip of the mating portion 5a is inserted so as to face the engaging groove 6a as the engaging portion.

At this time, since the plate thickness of the engaged portion 5a is larger than the distance between the protruding portion 6a and the outer side wall, the edge of the engaged portion 5a contacts the protruding portion 6a and is still inserted. Then, the engaging member 6
The inner and outer side walls of the projection are elastically deformed so that the engagement groove 6b is expanded and
When the groove 5b is inserted into the corresponding position in the groove 6b, the inner and outer walls are restored by repulsive elasticity, and the protrusion 6a is engaged in the groove 5b.

Then, when the gripping means is released from the gripping portion 4, the terminal portion is engaged and fixed to the engaging member 6 of the frame 7.

Thus, the upholstery member 2 is stretched by covering the cushion member 9, and a beautiful chair member without wrinkles at the corners is manufactured.

Even if a person sits down and the stile portion 2a of the upholstery member 2 is loosened, the protrusion 6a is engaged in the groove 5b of the engaged portion 5a, so that the engaged portion 5a is engaged with the engaging member 6a. Never fall out of.

When the upper member 2 is reattached, the inner wall of the engaging member 6 is elastically deformed to the leg 7b side by appropriate means so that the groove 5b and the protrusion 6a are engaged with each other. Since it is released, when the grip portion 4 is gripped and pulled toward the side facing the engagement member 6, the engaged portion 5a can be easily pulled out from the engagement groove 6b.

Second Embodiment FIG. 4 shows a sectional view of the essential parts of a second embodiment according to the present invention.

The same parts as those shown in FIG. 2 used in the description of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

 The chair member 1 has the same structure as that of the first embodiment.

The central portion of the engaging body 5 is sewn on the outer side of the end portion of the upholstery member 2, and the upper part of the sewing line 3 is a gripping part 4 while facing the gripping part 4 through the sewing line 3. The lower part to be engaged is the engaged portion 5a, and the end portion is wound inward with the sewing line 3 as a boundary and inserted into the engaging groove 6b formed in the engaging member 6, and the engaged portion 5a Is inserted in the groove 6b, and the protrusion 6a is engaged in the groove 5b.

In the above-mentioned configuration, the fixing of the terminal portion to the engaging member 6 is similar to that of the first embodiment, and the same operation is performed.

In addition, in order to improve the beauty of the appearance, the gripping part 4 is attached to the chair 1.
It is better to be hard to see from the outside, and it is preferable to engage and fix the terminal portion inside the stile portion 2a as much as possible.

Embodiment 3 FIG. 5 is a sectional view showing the essential parts of a third embodiment of the present invention.

The same parts as those shown in FIG. 2 used in the description of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

 The chair member 1 has the same structure as that of the first embodiment.

An engaging groove 6b is formed in a required portion of the outer peripheral wall of the leg portion 7b of the chair frame 7 as an engaging portion having an approximately U-shaped cross section, and the lower edge portion of the engaging groove 6b is formed. An engaging member 6 having elasticity is formed by forming a claw portion 6c that obliquely projects toward the bottom side of the upper side wall, and the lower portion of the engaging body 5 is attached to a peripheral required portion outside the terminal portion of the upholstery member 2. Is sewn, and the upper part to the upper end of the engaging body 5 from the sewn line 3 is made thinner than the lower part to make the thin part a gripping part 4, while the lower part facing the gripping part 4 is covered. The engaging portion 5a,
The engaged portion 5a is inserted into the engaging groove 6b, and the claw portion 6c is engaged with the step portion 5c formed at the boundary between the engaged portion 5a and the grip portion 4. .

In the above-mentioned configuration, the fixing of the terminal portion to the engaging member 6 is similar to that of the first embodiment, and the same operation is performed.

A modified example of this embodiment is shown in FIG. 9, but the operation is the same.

An engaging member 6 having an engaging shaft 6d having a substantially L-shaped cross section and extending downward is attached to a required portion of the outer peripheral wall of the leg portion 7b of the chair frame 7, and the outside of the end portion of the upholstery member 2 is attached. The lower portion of the engaging body 5 is sewn to the peripheral required portion of the engaging body 5, and the portion from the sewing line 3 to the upper end of the engaging body 5 is made thinner than the lower portion, and the thin portion serves as the grip portion 4. The lower portion facing the grip portion 4 is an engaged portion 5a, and the engaged portion 5a
An engaged hole 5d corresponding to the engaging shaft 6d is provided therethrough, and the engaging shaft 6d is inserted into the engaged hole 5d.

Embodiment 4 FIG. 6 is a sectional view of the essential parts showing a modification of the first embodiment.

The same parts as those shown in FIG. 2 used in the description of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The chair member 1 has the same configuration as that of the first embodiment,
The end portion of the upholstery member is bent inward, the engaging body 5 is arranged inside the bent portion, and the central portion is sewn to form a loop portion at the end portion of the upholstery member. The engaging body 5 is hidden by.

The lower part of the engaging body 5 below the sewing line 3 is a gripping part 4, while the upper part facing the gripping part 4 through the sewing line 3 is an engaged part 5a. The portion 5a is inserted and fixed in the engaging groove 6b as in the first embodiment.

In the above-mentioned configuration, the fixing of the terminal portion to the engaging member 6 is similar to that of the first embodiment, and the same operation is performed.

The engagement body 5 of the first to fourth embodiments may be flat, and examples of cross-sections are shown in FIGS. 10 (a) to 10 (f).

The flat shape is defined in JIS-G3192 Appendix 6, standard cross-sectional dimensions of spherical flat steel and its standard cross-sectional area, unit weight, and standard cross-sectional characteristics. It is preferable that the maximum ratio is equal to the standard cross-sectional dimension, and d / t is appropriately selected when implementing the above.

[Brief description of drawings]

FIG. 1 is a perspective view of a chair to which the chair member end treatment structure of a chair member according to the present invention is applied, FIG. 2 is a sectional view taken along the line AA of FIG. 1 showing a first embodiment, and FIG. FIG. 4 is an enlarged sectional view of the terminal portion of the upholstery member according to the first embodiment, FIG. 4 is an enlarged sectional view taken along the line AA of FIG. 1 showing the second embodiment, and FIG. 6 is an enlarged sectional view taken along the line AA of FIG. 6, FIG. 6 is an enlarged sectional view taken along the line AA of FIG. 1 showing a fourth embodiment, FIG. 7 is a sectional view of a main portion of a conventional technique, and FIG. 9 is a sectional view of an essential part showing a modification of the third embodiment, FIG. 10 is a sectional view of an engaging body according to the present embodiment, and FIG. 11 is a modification of the prior art. Sectional view of the essential parts 1 …… Chair, 20, 2 …… Upper member 2a …… Stile part, 3 …… Sewing line 4 …… Grip part, 50,5 …… Engagement body 5a …… Engaged part , 5b ...... Groove 5c ...... Step, 5d ...... Engagement hole 6 ... Engagement member, 6a ... Protrusion 60, 6b ... Engagement groove, 6c ... Claw portion 6d ... Engagement shaft, 7 ... Chair frame 7a ... Top plate portion, 7b ... Leg portion, 7c ... … Convex part 8 …… Spring member, 9 …… Cushion member

Claims (1)

[Scope of utility model registration request] 1. A cushion member supported by a chair frame is covered with an upholstery member, and a flexible engaging body having a flat cross section is attached to an end portion of the upholstery member. An upper member end treatment structure for a chair member that engages and is fixed to an engaging portion formed on the engaging member, wherein the engaged member is engaged with the engaging member and is opposed to the engaged member. And a gripping portion that can be gripped by appropriate means is formed, and the gripping portion is gripped by appropriate means to lock the engaged portion of the engaging body to the engaging portion. An end treatment structure for an upholstery member of a chair member characterized by the above.