Method for manufacturing a seat and/or backrest in textile covering mounted on a chair tubular chassis and a chair obtained according to said method

Abstract

A method for manufacturing a backrest and/or having a textile covering or the same, and mounted on a chair tubular chassis or the same includes the following steps: folding the lateral edges of the textile covering and seaming the edges to form lateral sheaths by a lateral seam line, affixing at least three visual markers, (notches), to at least one of the ends of each of the lateral sheaths, a first central notch at the lateral edge of each of the sheaths and two peripheral notches on both sides of the respective central notch, folding the free ends of the sheaths by fitting each central notch between the respective peripheral notches, such that the notches extend facing each other, seaming the free ends of the sheaths at the folding area of the notches by a transverse seam line, and turning over the textile covering by bringing out the corners.

Claims

1. A method for manufacturing a backrest and/or seat comprising a textile covering, said backrest and/or said seat being mounted on a chair tubular chassis, the method including at least the following steps: i) folding lateral edges of the textile covering and seaming said folded edges to form lateral sheaths by a lateral seam line, ii) providing at least three notches on at least one end of each of said lateral sheaths, the at least three notches provided on each lateral sheath including a central notch provided at a lateral edge of each respective lateral sheath and two peripheral notches provided on two sides of the respective central notch, iii) folding free ends of said lateral sheaths by fitting each central notch between the respective peripheral notches and such that said respective peripheral notches extend facing each other, iv) seaming the free ends at a folding area of the respective central and peripheral notches by a transverse seam line, and v) turning over the textile covering by bringing out corners of the textile covering.

2. The method according to claim 1, wherein each central notch is positioned on the lateral edge of the respective lateral sheath and the peripheral notches are positioned equidistant from the respective central notch.

3. The method according to claim 2, wherein the distance separating the peripheral notches from the respective central notch is 1 cm.

4. The method according to claim 1, wherein the step of providing the notches includes cutting markers parallel to the lateral edges of the respective lateral sheaths by an automatic cutting.

5. A method for manufacturing a backrest and/or seat formed by a textile covering, said backrest and/or said seat being mounted on a chair tubular chassis, the method including at least the following steps: i) folding lateral edges of the textile covering and seaming said folded edges to form lateral sheaths by a lateral seam line, ii) providing at least three rectilinear visual markers to at least one end of each of said lateral sheaths, the at least three rectilinear visual markers provided on each lateral sheath including a central rectilinear visual marker provided at a lateral edge of the respective lateral sheath and two peripheral rectilinear visual markers provided on two sides of the respective central rectilinear visual marker, iii) folding free ends of said lateral sheaths by fitting each central rectilinear visual marker between the respective peripheral rectilinear visual markers and such that said respective peripheral rectilinear visual markers extend facing each other, iv) seaming the free ends at a folding area of the respective rectilinear visual markers by a transverse seam line, and v) turning over the textile covering by bringing out corners of the textile covering.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Other advantages and features will become clearer from the following description of a single variant, provided as a non-limiting example, of the method for manufacturing a seat and/or a backrest in textile covering mounted on a chair tubular chassis and of the chair obtained according to the method in accordance with the disclosure, with reference to the appended drawings in which:

(2) FIG. 1 is a perspective view of a chair comprising a tubular chassis on which a seat and/or a backrest obtained in a textile covering is mounted according to the disclosure,

(3) FIG. 2 is a perspective view of the step of affixing notches to the lateral sheaths of the backrest and/or the seat according to the disclosure,

(4) FIG. 3 is a perspective view of folding the lateral sheaths of the backrest and/or the seat according to the disclosure before the step of seaming the end of the lateral sheaths,

(5) FIG. 4 is a perspective view of the step of turning over the textile covering of the backrest and/or the seat according to the disclosure, and

(6) FIG. 5 is a perspective view of the end of the lateral sheaths of the backrest and/or the seat according to the disclosure, once mounted on the tubular chassis of the chair.

DETAILED DESCRIPTION OF THE DRAWINGS

(7) In the rest of the description of the disclosure, the same reference numerals designate the same elements. The different views are not necessarily plotted to scale.

(8) Referring to FIG. 1, the chair according to the disclosure comprising a tubular chassis 1, a backrest 2 and a seat 3 obtained in a textile covering, such as canvas for example, and mounted on said tubular chassis 1.

(9) In this particular embodiment, the backrest 2 and the seat 3 are obtained as a single piece; however, it is obvious that the backrest 2 and the seat 3 can be obtained in two separate parts without departing from the scope of the disclosure.

(10) The method for manufacturing the backrest 2 and/or the seat 3 includes, in a first step, with reference to FIG. 2, from a rectangular or square part of a textile covering, in folding the lateral edges of the textile covering and seaming said folded edges to form lateral sheaths 4 by means of a lateral seam line, the lateral seam line being made by means of a seaming machine well known to those skilled in the art.

(11) In a second step, at least three visual markers, called notches 5, are affixed to at least one of the ends of said lateral sheaths 4, a central notch 5a being affixed at the lateral edge of the respective lateral sheath 4, and two peripheral notches 5b being affixed on both sides of the respective central notch 5a. Each central notch 5a is positioned on the lateral edge of the respective lateral sheath 4, and the respective peripheral notches 5b are positioned equidistant from said central notch 5. Furthermore, the distance separating the peripheral notches 5b from the respective central notch 5a is 1 cm. In addition, the step of affixing the notches 5, 5a, 5b includes cutting markers parallel to the lateral edge of the lateral sheaths 4 by means of an automatic cutting.

(12) The method according to the disclosure, with reference to FIG. 3, then includes folding the free ends of said lateral sheaths 4 by fitting each central notch 5a between the respective peripheral notches 5b and such that said peripheral notches 5b extend facing each other.

(13) Referring to FIG. 3, while maintaining the ends of the lateral sheaths 4 folded, a seaming of said free ends of the lateral sheaths 4 is carried out at the folding area of the notches 5 by means of a transverse seam line, then, with reference to FIG. 4, a turning over of the textile covering is carried out by bringing out the corners to provide a seam (not visible) having a Y-like general shape as shown in FIG. 5.

(14) It will be observed that this seam closing the ends of the lateral sheaths 4, and which has a Y-like general shape after turning over the textile covering, provides a homogeneous distribution of the forces of the tubes of the tubular chassis 1 on the textile covering when a person sits on the chair in particular. Moreover, in addition to the fact that the method according to the disclosure makes it possible to visually eliminate the seam, the method allows avoiding the decladding phenomenon, the seam line not being accessible.

(15) Finally, it is quite obvious that the examples that have just been given are only but particular illustrations which are in no way limiting as to the fields of application of the disclosure.