JP2555694Y2 - Chair - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair in which the depth of a seat plate constituting a seat portion can be adjusted according to the physique of a seated person.

[0002]

2. Description of the Related Art Conventionally, there has been provided a chair in which the depth of a seat can be adjusted. For example, as disclosed in Japanese Utility Model Publication No. 2-12909, both sides of the seat plate are slidably mounted on the legs so as to be slidable back and forth, so that the effective distance between the front surface of the backrest plate and the front edge of the seat plate is improved. Chairs with adjustable seating width are already provided.

However, in the chair, the seat is mounted so as to be movable and fixed back and forth with respect to the leg, so that the entire seat is easily rattled and the effective seating width of the seat is reduced. In the case of making the seat narrow, the rear part of the seat must be made to protrude rearward from the backrest plate through the space below the backrest plate, and the rear protruding portion may obstruct the passage, and the appearance may be reduced. Also have some problems.

[0004]

[Problems to be solved by the present invention] In view of the above situation, the present invention intends to solve the problem by firmly fixing the seat plate to the legs and using the seat with a wider depth. An object of the present invention is to provide a chair in which the auxiliary leg is sometimes positioned substantially horizontally at the front edge of the seat plate and the auxiliary seat plate is not obstructed when it is unnecessary.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, the present invention provides a seat having a backrest integrally formed at the rear end with a leg.
Height-adjustable connection to the
A chair comprising a footrest plate attached to a front middle section,
The part supports the auxiliary seat with a small depth at the front edge of the seat and supports the lower part of the auxiliary seat with the front end of the seat.
A support member is interposed between the limbs so as to be detachable so as to be held substantially horizontally, and a support member is interposed between the limbs. When the auxiliary seat plate is in a substantially horizontal state.
The auxiliary seat plate protrudes forward from the footrest plate, while
When the auxiliary seat plate is in a substantially hanging state, the footrest plate is a seat plate or
A chair protruding forward from the auxiliary seat plate was constructed.

[0006]

In the chair of the present invention having the above-mentioned contents, the auxiliary seat plate is made substantially horizontal, and the lower surface thereof and the front end of the seat plate are suspended.
A support member is interposed between the lowered connecting legs to maintain the state, and the seat plate is used as a seat having a wide width obtained by adding the depth of the auxiliary seat plate, and the support member is removed to seat the auxiliary seat plate. It is turned downward about the pivot point with the plate as a center, making it almost hanging,
It is used as a seat only for the depth width of the seat plate. This
Here, when the auxiliary seat plate is in a substantially horizontal state, the auxiliary seat plate
As it protrudes forward from the footrest plate,
When a large occupant sits, the foot plate does not get in the way,
On the other hand, when the auxiliary seat plate is in a substantially hanging state, the footrest plate is
Since it protrudes forward from the seat plate or auxiliary seat plate,
If a small sized occupant sits down, use the footrest
It is possible to

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;

FIGS. 1 and 2 show a typical embodiment of the present invention, in which 1 is a leg, 2 is a seat, and 3 is a backrest. The seat 2 in which the back 3 is integrally provided is attached so that the height can be adjusted.

The leg 1 is provided with a front vertical rod 5 and a rear vertical rod 6 standing slightly behind the front end of the grounding rod 4 to crawl on the floor surface and a rear vertical rod 6 at the rear end. A pair of horizontal rails 7 connected between the upper ends of the pair is arranged on the left and right.
5 and the lower ends of both rear vertical rails 6 and 6 are connected by connecting rails 8 and 9, respectively. 10, ... are provided in multiple stages at regular intervals,
Each of the cut grooves 10 has a through hole 11 formed in the outer surface thereof, and a footrest plate having both ends inserted into both cut grooves 10 and 10 of a desired height.
12 is fixed by bolts 13 inserted into the through holes 11. Here, the footrest 12 protrudes forward from the front vertical rail 5. At the upper part of the front vertical rail 5 and the rear vertical rail 6, mounting holes 14,... The through hole 11 and the mounting hole 14 are counterbore holes on the outer surface side so that the head of the bolt 13 does not protrude.

The seat 2 is provided on both sides of the lower front end of the seat plate 15 having a depth substantially equal to the depth width of the upper end of the leg 1, and on the inner surfaces of the front vertical rods 5, 5 of the leg 1. The connecting legs 16, 16 to be joined are respectively suspended and fixed, and the backrest rods 17, 17 are erected on both sides of the rear end, and the lower part thereof is set downward by the same length as the connecting legs 16, and the seat plate is provided. A reinforcing rod 18 is connected below the connection leg 16 between the connecting leg 16 and the backrest rod 17, and a locking rod 19 is fixed between the lower ends of the connecting legs 16, 16 with bolts 20. An auxiliary seat plate 21 having a small depth is pivotally supported at the front edge of the seat plate 15 by a hinge 22 or another structure. Further, L-shaped brackets are protruded from both sides of the lower surface of the auxiliary seat plate 21, and the vertical plate 23 is inserted into a slit 25 formed at one end of the support member 24 and rotatably connected by a pin 26. An interlocking rod 27 is connected between the other ends of the support members 24, 24, and engagement recesses 28, 28 which are opened forward are formed below the support members 24, 24, and the engagement recesses 28, 28 are formed. The locking rod
It is configured to be able to engage and disengage 19 from diagonally above. With the engaging concave portion 28 of the support member 24 engaged with the locking rod 19, the auxiliary seat plate 21 is set to a substantially horizontal state, that is, a state of being substantially flush with the seat plate 15.

A bolt is inserted through the mounting hole 14 from the outside of the connecting leg 16, 16 of the seat 2 and the lower part of the backrest rod 17, 17.
29, ... are connected to the leg 1.

In the present embodiment, the backrest 3 has a substantially T-shaped backrest plate 30 fixed between the upper ends of the backrest rods 17, 17 and the center of the rear end of the seat 2. is there.

A seat cushion is provided on the upper surface of the seat plate 15.
An auxiliary cushion 32 is appropriately provided on the upper surface of the auxiliary seat plate 21.

[0014] Here, the structure formed by the disengageably to the coupling structure and the leg 1 or Renketsuashi 16 of the support member 24 for holding the auxiliary seat plate 21 in a substantially horizontal state and the auxiliary seat plate 21, the aforementioned It is not limited to the embodiment. For example, a support member 24 curved along a rotation locus about a pivot point with the seat plate 15 is fixed to the lower surface of the auxiliary seat plate 21, and the support member 2 is fixed.
An elongated hole or a plurality of holes opened along the rotation locus may be formed on the side surface of the support member 4, and a fastening bolt inserted into the elongated hole or hole from the inside of the support member 24 may be fastened to the connecting leg 16. It is.

Thus, as shown in FIG.
21 is set in a substantially horizontal state substantially flush with the seat plate 15, and engagement recesses 28 of a support member 24 pivotally mounted on the lower surface thereof are fixedly connected to the connecting legs 16, When the state is maintained by dropping and engaging the locking rod 19 attached between the lower ends of the lower part 16 from above and obliquely from above, the effective depth of the seat portion 2 is obtained by adding the depth width of the auxiliary seat plate 21 to the seat plate 15. It is suitable for a large physique seated person, for example, an adult. In this state, the auxiliary seat plate 21 projects forward from the footrest plate 12, so that the use of the footrest plate 12 does not hinder the use thereof.

On the other hand, as shown in FIG. 3, when the support member 24 is lifted to release the engagement between the engagement concave portion 28 and the locking rod 19, the auxiliary seat plate 21 is centered on the pivot point by the hinge 22. And pivots downward until it is substantially suspended from the front edge of the seat plate 15. The support member 24 is accommodated below the seat plate 15 with its front edge placed on the locking rod 19.
In this state, the effective depth width of the seat portion 2 is only the depth width of the seat plate 15, which is suitable for a seated person having a small physical size, for example, a child. In this state, the footrest 12 protrudes forward from the seating plate 15 or the auxiliary seating plate 21, and can be used by placing a foot on the footrest 12 when a person with a small physique sits.

The present invention can be used not only for adults and children at the same time, but also can be changed over time as the child grows.

In this embodiment, the support member 24 is mounted on the locking rod 19 with the auxiliary seat plate 21 hanging down, but is engaged with the engagement recess 28 of the support member 24 below the seat plate 15. In this case, the support member 24 can be accommodated in the seat portion 2 in a substantially horizontal state, and the support member 24 is inconspicuous, so that the appearance is excellent. It is possible.

[0019]

[Effect of the invention] The chair of the invention, which is made as described above, is located at the rear end.
Height adjustment of the seat with the backrest integrated with the legs
And a footrest plate in the middle of the front part of the leg.
A chair comprising mounting said seat is configured to pivot the narrower auxiliary seat plate of depth width front edge of the seat plate, intercompany legs hanging down the front end portion of the lower surface and the seat plate of the auxiliary seat plate In order to hold the auxiliary seat plate substantially horizontally, a support member is interposed to be detachable so that the auxiliary seat plate can be selected to be in a substantially horizontal state or a substantially hanging state by disengaging the support member. What was done and before
When the auxiliary seat is in a substantially horizontal state, the auxiliary seat is
The auxiliary seat plate projects substantially forward while projecting forward from the plate.
At the time of the above, the footrest plate is located forward of the seat plate or auxiliary seat plate.
Since the auxiliary seat plate is protruded , the auxiliary seat plate is set to be substantially horizontal, and the supporting member is interposed between the lower surface thereof and the connecting leg hanging down from the front end of the seat plate to maintain the state.
Since the footrest plate projects more forward and does not interfere with the seat plate, it can be used by an adult or a person with a large physique as a seat portion having a wide width obtained by adding the depth width of the auxiliary seat plate to the seat plate. Remove is rotated downward auxiliary seat plate around the pivot point of the seat plate substantially suspended state and a strike, footboards are seat plate young
Since properly projects forwardly from the auxiliary seat plate, small person the foot of children or physique as seat only depth width of the seat plate
It can be used while using the mounting plate .

Further, since the seat plate itself is fixed to the legs, the seat plate is strong without rattling and can be used stably over time.

[Brief description of the drawings]

FIG. 1 is a side view of a chair according to the present invention in which an auxiliary seat plate is substantially horizontal.

FIG. 2 is a front view of the same.

FIG. 3 is a side view showing a state in which an auxiliary seat plate of the chair is substantially suspended.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Leg part 2 Seat part 3 Backrest 4 Grounding rod 5 Front vertical rod 6 Rear vertical rod 7 Side rail 8 Connecting rod 9 Connecting rod 10 Cutting groove 11 Through hole 12 Foot plate 13 Bolt 14 Mounting hole 15 Seat plate 16 Connection Leg 17 Backing rod 18 Reinforcement rod 19 Locking rod 20 Bolt 21 Auxiliary seat plate 22 Hinge 23 Vertical plate 24 Support member 25 Slit 26 Pin 27 Interlocking rod 28 Engagement recess 29 Bolt 30 Backrest plate 31 Seat cushion 32 Auxiliary cushion

Claims (1)

(57) [Scope of request for utility model registration] 1. A seat having a backrest integrally formed at a rear end thereof.
A height-adjustable connection to the leg,
A chair comprising a footrest plate attached to the front middle section of
The seat pivotally supports the auxiliary seat with a small depth at the front edge of the seat, and hangs on the lower surface of the auxiliary seat and the front end of the seat.
A support member is interposed between the connecting legs so as to be detachable so as to hold the auxiliary seat plate substantially horizontally, and the auxiliary seat plate can be set in a substantially horizontal state and a substantially hanging state by disengaging the support member. And when the auxiliary seat plate is in a substantially horizontal state.
The auxiliary seat plate projects forward from the footrest plate, while the
When the auxiliary seat plate is in a substantially hanging state, the footrest plate is
A chair protruding forward from the auxiliary seat plate .