JP5438181B2 - Chair - Google Patents

Description

  The present invention relates to a chair having optional members such as hangers and headrests attached to the backrest.

The applicant of the present application has filed a patent application regarding an invention of a structure in which a hanger as an optional member is attached to a backrest of a chair (Japanese Patent Laid-Open No. 2006-280455).
According to the present invention, a screw seat having a pair of left and right bosses is attached to a mounting hole provided in a hanger mounting portion in a backrest frame by inserting the boss through the mounting hole, and a boss protruding rearward The first member is attached using the first member, the second member is attached from the rear of the first member, and the mounting screw is attached to the boss while holding the support rod of the hanger between the first member and the second member. The hanger is attached to the backrest frame by being screwed into the screw hole.

  However, since the three parts of the screw seat and the first and second members are simply positioned by fitting, etc., work carefully so that these parts do not separate during the installation work. There is a problem that it is necessary to improve the work efficiency and that a mounting hole must be formed in the backrest frame.

JP 2006-280455 A

  The present invention has been made in view of the above-described problems of the prior art, and can easily and firmly attach the option member to the backrest without making a mounting hole in the backrest. An object of the present invention is to provide a chair with good work efficiency in attaching optional members.

According to the present invention, the above problem is solved as follows.
(1) In a chair comprising a backrest and an optional member attached to the backrest via an attachment support, the attachment support has an attachment portion to the backrest at the front, and A first mounting member having a support portion that is elastically deformable in the front-rear direction and supports the optional member so that the vertical position can be adjusted by elastically holding the optional member; and a rear portion of the first mounting member A second mounting member attached to the first mounting member is provided so as to abut against a part of the support portion and push the part toward the option member.

  According to such a configuration, the rear part of the second mounting member is pressed against a part of the support part of the first mounting member, and by this pressure contact, a part of the support part of the first mounting member is pushed toward the option member. Thus, the option member is supported by the mounting support with a stable position.

(2) In the above item (1), the second mounting member is fastened and fixed to the first mounting member with a mounting screw, and the opposing surface between the rear portion of the second mounting member and the support portion of the first mounting member is provided. As the mounting screw is tightened, the rear portion of the second mounting member has an inclined surface that presses the support portion toward the option member.

  According to such a configuration, as the mounting screw is tightened, the inclined surfaces of the first mounting member and the second mounting member are pressed against each other, and the rear portion of the second mounting member supports the first mounting member. The portion is gradually pressed toward the option member, and the option member is firmly attached to the backrest with more stable position.

(3) In the above item (1) or (2), the support portion includes a rear plate provided at the rear portion of the first mounting member, and an elastic projecting piece that is provided in front thereof and is elastically deformable. With the face plate and the elastic protrusion, the portion of the optional member that faces in the vertical direction is gripped by the elastic force.

  According to such a configuration, the option member can be stably held by gripping the portion of the option member that faces in the vertical direction by the elastic restoring force of the elastic protrusion with the rear plate and the elastic protrusion.

(4) In any one of the above items (1) to (3), a pivot that faces in the left-right direction is provided at the front of the first mounting member, and the pivot can be rotated at the front of the second mounting member. A fitting portion to be fitted is provided, and a portion of the second mounting member away from the pivot or the fitting portion is screwed to the first mounting member in a state where the fitting portion is fitted to the pivot. Thus, the protruding portion provided at the rear end of the second mounting member is brought into contact with the front surface of the support portion.

  According to such a configuration, it is possible to increase the efficiency of mounting the first mounting member and the second mounting member, so it is possible to increase the efficiency of mounting the optional member on the backrest.

(5) In any one of the above items (1) to (4), the upper frame facing the left-right direction in the backrest is clamped between the front part of the first attachment member and the front part of the second attachment member from above and below. Thus, both attachment members are attached to the backrest.

  According to such a configuration, it is not necessary to make a mounting hole in the backrest, and the optional member can be firmly attached to the backrest with high work efficiency.

(6) In the above item (5), a concave groove facing in the left-right direction is provided on the lower surface of the front part of the first mounting member, and the concave groove is fitted to the upper frame in the backrest from above, With the opening closed with the front portion of the second mounting member 12, the second mounting member is screwed to the first mounting member with a mounting screw.

  According to such a configuration, the first mounting member can be attached to the backrest and can be held on the backrest only by fitting the first mounting member to the upper frame of the backrest with a concave groove from above. Good workability.

  According to the present invention, it is possible to easily and firmly attach an optional member to the backrest without drilling a mounting hole in the backrest frame, and it is possible to provide a chair with good mounting efficiency of the optional member. .

It is a principal part back inclination view which shows one Embodiment of the chair of this invention which attached the hanger as an optional member to the backrest. It is a front view of one Embodiment of this invention shown in FIG. Similarly, it is a side view. It is a front perspective view of a hanger. It is a front perspective view of the 1st attachment member. Similarly, it is a back perspective view of the 1st attachment member. Similarly, it is a front view of the first mounting member. Similarly, it is a top view of a 1st attachment member. Similarly, it is a bottom view of the first mounting member. Similarly, it is a side view of the first mounting member. It is a front perspective view of the 2nd attachment member. Similarly, it is a back perspective view of the 2nd attachment member. Similarly, it is a front view of the 2nd attachment member. Similarly, it is a top view of the 2nd attachment member. Similarly, it is a side view of the second mounting member. It is sectional drawing which shows the procedure which attaches a hanger to the upper frame of a backrest using a 1st attachment member and a 2nd attachment member. It is the XVII-XVII sectional view taken on the line in FIG. Similarly, it is XVIII-XVIII sectional view taken on the line in FIG. Similarly, it is the XIX-XIX sectional view taken on the line in FIG.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a main part rear perspective view showing an embodiment of a chair of the present invention in which a hanger as an optional member is attached to the backrest, and FIGS. 2 and 3 are respectively a front view and a side view of the main part. is there. FIG. 4 is a front perspective view of the hanger.

  A hanger 1 as an optional member is attached to an upper frame 3 in the left-right direction of the backrest 2 of the chair by an attachment support 4. The upper frame 3 has a gentle curve protruding rearward in plan view (see FIG. 19).

  The hanger 1 includes a hanger body 5 and a pair of left and right support rods 6 and 6 that support the hanger body 5.

  The hanger body 5 extends in the left-right direction to such a length that a suit or the like can be hung. A pair of left and right support rods 6 and 6 that support the hanger body 5 are curved in a direction away from each other upward from the upper ends of the lower support rods 7 and 7 that are parallel to each other and the lower support rods 7 and 7. The upper support rods 8 and 8 that reach the left and right ends of the hanger body 5 and the cross-sectional area gradually decreases from the lower support rod 7 side toward the hanger body 5 side, and the lower ends of the lower support rods 7 and 7 The lower support rods 7 and 7 are connected to each other at their lower ends via both connection rods 9 and 9. ing.

  The support rods 6 and 6 are attached to the hanger body 5 by fastening the upper ends of the upper support rods 8 and 8 to the vicinity of the left and right ends of the lower surface of the hanger body 5 with screws (not shown). As shown in FIG. 4, a corrugated surface portion 10 is provided on the front surface of the lower support rods 7, 7.

  The attachment support body 4 includes a first attachment member 11 and a second attachment member 12.

  5 to 10 are a front perspective view, a rear perspective view, a front view, a plan view, a bottom view, and a side view of the first mounting member 11, respectively. 11 to 15 are a front perspective view, a rear perspective view, a front view, a plan view, and a side view of the second mounting member 12, respectively.

  The first attachment member 11 includes a main body portion 13, a rear plate 14, and a front plate 15.

  The main body 13 is provided with side plates 18 and 18 in the vicinity of the left and right ends of the bottom surface of the quadrilateral top plate 17 that is long in the left and right direction. Is provided (see FIG. 9).

  The rear plate 14 is integrated with the rear surface of the main body 13 with its left and right ends 14 a and 14 a protruding to the left and right of the top plate 17 of the main body 13.

  A front plate 15 having a front portion curved downward is integrally provided at a front end edge of the top plate 17 in the main body portion 13.

The upper surface 15a of the front plate 15, the upper surface 17a of the top plate 17 in the main body 13, and the upper end edge 14b of the rear plate 14 are integrated on the same plane.

  The front plate 15a of the front plate 15 is gently curved in a concave shape forward in plan view. A downward groove 20 is formed in the left-right direction by the inner surface of the front plate 15 and the front surface of the main body 13. As will be described later, the concave groove 20 is used to attach the first mounting member 11 to the upper frame 3 by fitting the first mounting member 11 from above to the optional member mounting portion 3a of the upper frame 3 of the backrest 2. belongs to.

  Since the front plate 15a in the first attachment member 11 is gently curved in a concave shape forward, the first attachment member 11 can be favorably attached to the similarly curved upper frame 3.

  Near the left and right ends of the front face of the front plate 15a, a pair of left and right side attachments 21 and 21 having a substantially triangular shape project from the left and right sides, respectively. A pivot 22 is provided.

  Elastic protrusions 23 project from the left and right lateral surfaces of the left and right side plates 18 and 18 in the main body 13 so as to be elastically deformable in the front-rear direction. As shown in FIG. 10, the rear end edge of the elastic protrusion 23 forms a rearward V-shaped concave surface 23 a, and the front end edge forms an inclined surface 23 b inclined forward.

  As shown in FIGS. 11 to 15, the second attachment member 12 includes a substrate portion 24, a fitting portion 25, and an attachment portion 26. The substrate portion 24 is formed by a vertical piece 24a that is inclined rearward and gently curved in a convex manner rearward, and a horizontal piece 24b that extends forward from the lower end of the vertical piece 24a. At the front end edge of the horizontal piece 24b in the substrate portion 24, hook-like fitting portions 25, 25 that open downward in a pair of left and right sides are provided. In the vicinity of the left and right ends of the rear surface of the vertical piece 24a, a substantially triangular projection 27 is provided in a side view, and the upper half of the rear surface of the projection 27 forms an inclined surface 27a that is inclined forward.

  In the center of the rear surface of the vertical piece 24a in the substrate portion 24, a U-shaped attachment portion 26 facing downward in a side view is provided, and a pair of left and right through holes 28, 28 are formed in the attachment portion 26. ing.

  Next, a procedure for attaching the hanger 1 to the upper frame 3 of the backrest 2 using the first attachment member 11 and the second attachment member 12 will be described.

  FIG. 16 is a diagram showing the procedure, and is a cross-sectional view taken along line XVI-XVI in FIG.

  17 to 19 are a sectional view taken along line XVII-XVII, a sectional view taken along line XVIII-XVIII, and a sectional view taken along line XIX-XIX in FIG. 2, respectively.

  First, the option member 1 is supported by the first mounting member 11. In the first attachment member 11, a pair of left and right concave fitting portions 29, 29 that are formed between the front plate 15 and the rear plate 14 and open outward in the left-right direction serve as support portions for the option member 1. ing.

  The first mounting member 11 is positioned between the left and right upper support rods 8 and 8 in the option member 1 and moved downward, and the left and right concave fitting portions 29 and 29 in the first mounting member 11 are supported in the lower part. The hooks 7 and 7 are fitted together, and the chevron portion 10a of the corrugated surface portion 10 of the lower support rod 7 is fitted to the concave surface 23a of the elastic projection piece 23 of the first mounting member 11 (see FIG. 16A).

  Since the elastic protruding piece 23 can be elastically deformed in the front-rear direction, the hanger 1 is stabilized in position with respect to the first mounting member 11 by this elastic force and the fitting between the mountain-shaped portion 10 a and the concave surface 23. Well supported.

  Next, as shown in FIG. 16 (a), by fitting the concave groove 20 in the first mounting member 11 into the option member mounting portion 3 a of the upper frame 3 in the backrest 2 from above, the first mounting member 11. Is attached to the upper frame 3.

  Next, the second mounting member 12 is turned upside down, and the fitting portion 25 is fitted to the pivot 22 of the first mounting member 11 from below, so that the second mounting member 12 becomes the first mounting member 11. Install.

  Next, as shown in FIG. 16 (b), the second mounting member 12 is rotated in the direction of the arrow A, and as shown in FIG. 16 (c), the lower portion of the concave groove 20 in the first mounting member 11. The opening is closed with the second mounting member 12. The horizontal piece 24b of the board | substrate part 24 in the 2nd attachment member 12 and the protrusion part 27 are functioning as a obstruction | occlusion part.

  Next, as shown in FIG. 17, the mounting screw 30 is inserted into the through hole 28 of the mounting portion 26 in the second mounting member 12, and the screw provided on the lower surface of the top plate 17 in the first mounting member 11. The second mounting member 12 is screwed to the first mounting member 11 by screwing into the hole 19.

As a result, the inclined surface 23b of the elastic protrusion 23 in the first mounting member 11 and the inclined surface 27a of the protruding portion 27 in the second mounting member 12 are in pressure contact with each other (see FIG. 16C). The mounting member 11 and the second mounting member 12 are firmly fixed to each other, and by this pressure contact, the elastic protruding piece 23 of the first mounting member 11 is pushed rearward, so that the hanger 1 is mounted in a more stable position. Supported by
In the embodiment, a hanger is taken as an example of an optional member. However, the present invention can be applied to attachment of an optional member such as a headrest.

1 Hanger (optional material)
2 Backrest 3 Upper frame 3a Optional member mounting part
DESCRIPTION OF SYMBOLS 4 Attachment support body 5 Hanger body 6 Support rod 7 Lower support rod 8 Upper support rod 9 Connection rod 10 Corrugated surface portion 10a Angle portion 11 First attachment member 12 Second attachment member 13 Body portion 14 Rear plate 15 Front plate 17 Top plate 18 Side plate 19 Screw hole 20 Groove 21 Attachment piece 22 Pivot 23 Elastic protrusion 23a Concave surface 23b Inclined surface 24 Substrate portion 24a Vertical piece 24b Horizontal piece 25 Fitting portion 26 Attachment portion 27 Protruding portion 27a Inclined surface 28 Through hole 29 Concave Fitting part (support part)
30 mounting screws

Claims (6)

In a chair comprising a backrest and an optional member attached to the backrest via an attachment support,
The mounting support has a mounting portion for the backrest at the front portion and is elastically deformable in the front-rear direction at the rear portion, and the vertical position is adjusted by elastically holding the optional member. A first mounting member having a support portion that supports the first mounting member; and a rear portion that is in contact with a part of the support portion of the first mounting member and pressing the part toward the option member, A chair comprising: a second attachment member attached to the first attachment member.   The second mounting member is fastened and fixed to the first mounting member with a mounting screw, and the opposing surface of the rear portion of the second mounting member and the support portion of the first mounting member is tightened with the mounting screw. The chair according to claim 1, wherein a rear portion of the second attachment member is an inclined surface that presses the support portion toward the option member.   The support portion includes a rear plate provided at the rear portion of the first mounting member and an elastic projecting piece that is provided in front of the first mounting member and is elastically deformable. The chair according to claim 1 or 2, wherein the facing portion is gripped by an elastic force.   A pivot shaft facing in the left-right direction is provided at the front portion of the first mounting member, a fitting portion that is pivotably fitted to the pivot shaft is provided at the front portion of the second mounting member, and the fitting portion is fitted to the pivot shaft. In a combined state, the protruding portion provided at the rear end of the second mounting member is supported by screwing a portion of the second mounting member away from the pivot or the fitting portion to the first mounting member. The chair according to any one of claims 1 to 3, wherein the chair is brought into contact with the front surface of the section.   Both mounting members are attached to the backrest by tightening an upper frame facing the left-right direction in the backrest by sandwiching the upper frame between the front portion of the first attachment member and the front portion of the second attachment member from above and below. The chair according to any one of claims 1 to 4.     A concave groove facing in the left-right direction is provided on the lower surface of the front portion of the first mounting member, and the concave groove is fitted to the upper frame in the backrest from above, and the lower opening of the concave groove is formed in the second mounting member The chair according to claim 5, wherein the second mounting member is screwed to the first mounting member with a mounting screw in a state where the front portion is closed.

Images