CN102860685A

CN102860685A - Chair

Info

Publication number: CN102860685A
Application number: CN2012103463222A
Authority: CN
Inventors: 沈海龙
Original assignee: Anji Hailong Furniture Co Ltd
Current assignee: Anji Hailong Furniture Co Ltd
Priority date: 2012-09-18
Filing date: 2012-09-18
Publication date: 2013-01-09
Anticipated expiration: 2032-09-18
Also published as: CN102860685B

Abstract

A chair belongs to the field of furniture supplies and comprises a chair-back, a sitting stool, and handrails which are arranged on the sitting stool; the chair-back is provided with a hinge joint part which is hinged with the handrails; the hinge joint part comprises a rotating shaft, and through holes which are formed in positions on the handrails, which correspond to the rotating shaft; the lower end of the chair-back is provided with retaining parts; and the handrails are provided with retaining components which are matched with the retaining parts and used for limiting the rotating angles of the chair-back. According to the chair provided by the invention, the chair-back is hinged with the handrails, and the handrails are provided with the retaining components, so that the chair-back can be folded; and the chair-back can be rotated for the maximum angle so as to be level with the sitting stool. Therefore, other transmission components such as bearing seats do not need to be mounted, so that the weight and the cost of the chair can be reduced; and moreover, main parts are mounted on the handrails, so that the chair is convenient to manufacture, simple to install, convenient to repair and maintain and convenient to transport, and the storage space is reduced.

Description

A kind of chair

Technical field

The present invention relates to a kind of household goods, especially for chair.

Background technology

On the market a variety of chairs are arranged now, it is that the chair back can overturn that a kind of chair is arranged, its benefit is the hobby that can be fit to different people, the angle of the free adjustment chair back, and reduce memory space when depositing and transporting, but this chair also has a problem: be exactly complex structure, particularly drive disk assembly is many, cost is high, repairs later on trouble.

Such as patent CN200510078651.3, a kind of seat with synchronous back coordinating system, the base of this patent column by extending cushion top is and hinged with the chair back, and this pin joint is positioned at the greater trochanter point (central point of hip joint) of human body and locates.On greater trochanter point when this seat is arranged on human body reclining action by the pin joint with the chair back and base, so that the chair back when rotating (reclining or inclination) pivot during with human body rotation (reclining or inclination) on same straight line, therefore no matter the chair back is adjusted to any angle, contact-making surface between human body back and the chair back can not change, make the chair back under any angle, can provide sufficient supporting force to waist, make seated person can not produce uncomfortable sensation.The chair back can provide supporting force really well like this, but the drive disk assembly of the chair back is too loaded down with trivial details, and relatively lower in market economy, and this seat lacks aesthetic feeling, is arranged on the outer parts of chair too many, has affected the overall aesthetics of chair.

Summary of the invention

Purpose of the present invention is to solve the problems of the technologies described above, and provides a kind of chair back freely to rotate, and seat simple in structure, easy for installation.

Technical solution of the present invention is: a kind of chair, and comprise the chair back, bench and be arranged on handrail on the bench, on the described chair back articulated section is set, be hinged with described handrail; Described articulated section comprises the through hole that corresponding turning cylinder position arranges on turning cylinder and the described handrail, and the lower end of the described chair back arranges stop part, and the stop member that is used for restriction chair back rotational angle that matches with stop part is set on the described handrail.

The chair back does not need with bench hinged, as long as hinged just passable with handrail.The hinge members such as bearing block so need to be set on bench again, directly at handrail turning cylinder be set, the chair back just hold a little turning cylinder position at the chair back.Also be provided with stop member on the handrail, so that total is very simple, and can well provide supporting force, and parts directly one are connected on the handrail, just fairly simple when making like this, as long as just can finish the improvement of handrail by the design of mould, miscellaneous part does not need to change.

As preferably, arrange on the described handrail in order to handrail is fixed on the bench fixed area and in order to limit the Resistance of chair back rotational angle.Because the main stress point of this chair is on handrail, so needs are strengthened fixing between handrail and the bench, and special fixed area is set.

As preferably, the reinforcement of tubulose is set in the through hole of described handrail, the footpath at the two ends of described reinforcement upwards arranges the tubulose fin.Because the place that is connected with handrail of turning cylinder is the place of holding capacity maximum, so need to reinforcement be set in this place, reinforcement preferably.Owing to will open the hole on the handrail, turning cylinder is installed in the through hole, so the tubulose fin at reinforcement two ends can be strengthened the intensity of handrail through-hole surfaces, prevent the disturbance because of turning cylinder, cause breaking of through hole.

As further preferred, be provided on the described reinforcement preventing that turning cylinder from passing the outer block of reinforcement.

As preferably, also comprise the switching device of fixture and control fixture; When described fixture turns to certain angle for the chair back, the chair back is fixed on the handrail.After preventing that the user from stopping the chair back being applied active force, the chair back can rotate, so go to the fixedly position of the chair back with fixture.

As preferably, described fixture comprises the latch, the groove that is arranged on corresponding described latch position on the handrail that are arranged in the chair back, is enclosed within the spring A on the latch and is used for preventing that spring A from passing the outer card of the chair back; Described latch can pass outside the chair back.

As further preferred, described latch is divided into left latch and the right pin that is arranged on the chair back left and right sides, described switching device comprises the plate that is fixedly connected with right pin, with the fixed axis that plate is rotationally connected, with the connecting rod that plate one end is fixedly connected with, described connecting rod is connected on the rotating shaft by upper rotatable lamella, lower rotatable lamella also is set on the rotating shaft, lower rotatable lamella is connected with left latch, and left pin bushing has catch, and described catch is enclosed within the position of the spring A on the left latch in order to restriction.By such drive mechanism, the monolithic plate just can be controlled latch flexible of chair back both sides.

As preferably, the stop member on the described handrail comprises stopping means and adjusting device; Described stopping means comprises baffle plate, is connected to the stage clip on the baffle plate, the fixed block that is fixedly connected with stage clip; Described fixed block is fixedly connected with handrail, and described adjusting device is used for the position of controllable register; Described adjusting device comprises threaded rod, compressing tablet and the knob that is connected with threaded rod; Described threaded rod is fixedly connected with baffle plate, and compressing tablet is fixedly connected with knob.Change the position of baffle plate by adjusting device, just can change the maximum rotation angle of the chair back.Thereby the user can come according to the level of comfort of oneself angle of adjusting back, more hommization of such design, and owing to stage clip being arranged to active force of baffle plate, and this active force is rightabout with the user to the active force of the chair back just in time.So when the user produced excessive pressure to backrest, adjusting device was inadequate to the bed knife of baffle plate, the bounce that stage clip produces also can stop the movement of baffle plate.

As preferably, stop member on the described handrail is baffle plate, corresponding baffle position arranges buckle on the described chair back, buckle by jointed shaft hinged fixed head, linking springs B between fixed head and the buckle, buckle is driven by drive link, and drive link arranges actuating arm by swing arm connection of rotating seat on the rotation seat; Described actuating arm can be turned to the state vertical with handrail after the chair back is folding, be turned to the use state in order to stop the chair back.Actuating arm not only can drive the motion of buckle, can also after the chair back is folding, stop that the chair back is dug again.

As preferably, between the described chair back and the bench guide rail is set.Described guide rail is divided into the interior rail that is connected with the chair back and the outer rail that is connected with bench, and interior rail is along the orbiting motion of outer rail profile, and outer rail inside arranges location-plate, and a side of rail motion inwardly is fixedly connected with Billiard apparatus on the location-plate.Guide rail can give the chair back certain support force.Billiard apparatus is that the chair back is produced a cushion effect, reduces the power that handrail turning cylinder place is subjected to.

Beneficial effect of the present invention is: this seat passes through the chair back and handrail is hinged, and at handrail stop member is set, and the chair back just can fold like this, and can keep level with bench when the maximum rotation angle.So just without other drive disk assemblies such as installation shaft bearings, reduced weight and the cost of chair, and since main parts all be installed on the handrail, so easy to make, install simple, repair also conveniently, and can conveniently transport, reduce parking space.

Description of drawings

Fig. 1 is the embodiment of the invention 1 perspective view;

Fig. 2 is the annexation figure of the chair back and handrail;

Fig. 3 is the enlarged drawing of A section among Fig. 2;

Fig. 4 is chair rear side schematic perspective view;

Fig. 5 is chair back partial sectional view;

Fig. 6 is the embodiment of the invention 2 perspective view;

Fig. 7 is the enlarged drawing of B section among Fig. 6;

Fig. 8 is the cross-sectional schematic of C-C face among Fig. 6;

Fig. 9 is the side partial schematic diagram of embodiment 3 chairs;

Figure 10 is the schematic diagram after the upset of embodiment 3 chair back;

Figure 11 is embodiment 4 chair side schematic views;

Figure 12 is the enlarged drawing of D section among Figure 11.

Among the figure, the 1-chair back, 11-articulated section, 12-stop part, 13-through hole, the 14-actuating arm, 141-rotation seat, 142-swing arm, 143-drive link, 144-jointed shaft, the 145-fixed head, 146-spring B, 2-handrail, 21-fixed area, 22-Resistance, the 3-bench, 4-stopping means, 41-baffle plate, 42-stage clip, 43-fixed block, the 44-groove, 45-threaded rod, 46-compressing tablet, 47-knob, 48-through hole, the 5-fixture, 51-buckle, 52-draw-in groove, 511-latch, the left latch of 5111-, 5112-right pin, 512-card, 513-spring A, the 514-groove, 6-switching device, 61-plate, 62-fixed axis, the 63-connecting rod, the upper rotatable lamella of 64-, 65-rotating shaft, rotatable lamella under the 66-, the 67-catch, 7-turning cylinder, 8-reinforcement, 81-block, the 82-fin, 9-adjusting device, rail in the 10-guide rail, 101-, the 102-outer rail, 1011-location-plate, 1012-Billiard apparatus

The specific embodiment

The invention will be further described with embodiment below in conjunction with accompanying drawing.

Embodiment 1, and shown in Fig. 1-5, a kind of chair comprises the chair back 1, bench 3 and is fixedly connected on handrail 2 on the bench 3, on the described chair back 1 articulated section 11 is set, and is hinged with described handrail 2; The through hole 13 that described articulated section 11 comprises turning cylinder 7 and corresponding turning cylinder 7 positions arrange on described handrail 2.Turning cylinder 7 is arranged on the chair back 1 middle and lower part, and is fixedly connected with in the chair back 1, and most preferably the position of turning cylinder 7 will be lower than the user to the position of chair back active force.Can prevent that like this user from directly exerting oneself to turning cylinder 7, cause the infringement of turning cylinder or handrail and turning cylinder junction.The lower end of the described chair back 1 arranges stop part 12, and stop part 12 can be the body of the chair back.Handrail 2 except with the join domain of the chair back 1, also have in order to handrail 2 is fixed on the bench 3 fixed area 21 and in order to limit the Resistance 22 of the chair back 1 rotational angle.Because the handrail 2 of this chair is main stressed member, so handrail 2 needs a bulk of special zone of fixing with bench 3, the fixed area in the present embodiment is the connecting plate of a strip, bench 3 is fixedly connected with mode by bolt etc. links together.Be provided with the stop member 23 that is used for the restriction chair back 1 rotational angle that matches with stop part 12 in the Resistance 22 on the described handrail 2.The chair back 1 is directly hinged with handrail 2, and handrail 2 has been become bearing block, can improve greatly the utilization rate of handrail 2, and simplify the structure of chair, has reduced cost, just can reach the purpose that the chair back 1 overturns, and there is good support force at user's back.Stop member 23 is exactly a protruding block that is fixed on handrail 2 among the figure, is used for stopping the maximum angle that the chair back rotates, the simplest embodiment of this thing, but the effect of this structure is also fine, and can reduce cost.

From Fig. 2-3, can see; the inner surface welding reinforcement 8 of handrail 2 inherent through holes 13; the chair back 1 is inserted in the reinforcement 8 by turning cylinder 7; the footpath at the two ends of described reinforcement 8 upwards arranges tubulose fin 82; fin 82 can be protected the end face at through hole 13 two ends; prevent the disturbance because of turning cylinder, cause breaking of through hole.One connects and is used for preventing that turning cylinder 7 from passing the block 81 outside the reinforcement 8 on the described reinforcement 8.Block 81 can be identical material with reinforcement 8.After assembling like this, the chair back 1 just is fixed between two handrails 2, can double swerve.

From Fig. 4-5, can see, also comprise the switching device 6 of fixture 5 and control fixture 5 on the chair; Fixture 5 comprises the latch 511 that is arranged in the chair back 1, be arranged on corresponding latch 511 positions on the handrail 2 groove 514, be enclosed within the spring A513 on the latch 511 and be used for preventing that spring A513 from passing the outer card 512 of the chair back 1; A zone of the chair back 1 inside is hollow, is specifically designed to parts and switching device 6 in the placing fixer 5, and there is opening the side of the chair back 1, and latch 511 can pass outside the chair back 1 by opening.

Described latch 511 specifically is divided into left latch 5111 and the right pin 5112 that is arranged on the chair back 1 left and right sides, described switching device 6 comprises the plate 61 with right pin 5112 welding, the fixed axis 62 that is rotationally connected with plate 61, plate 61 is rotated centered by fixed axis 62, the connecting rod 63 that is fixedly connected with plate 61 1 ends, connecting rod 63 is connected on the rotating shaft 65 by upper rotatable lamella 64, lower rotatable lamella 66 also is set on the rotating shaft 65, lower rotatable lamella 66 is connected with left latch 5111, and cover has rectangle catch 67 on the left latch 5111.Catch 67 is connected with the chair back 1 one, is enclosed within the position of the spring A513 on the left latch 5111 in order to restriction.Upper rotatable lamella 66 is positioned at the upside of rotating shaft 65, and lower rotatable lamella 66 is positioned at the downside of rotating shaft 65, and the angle between two is between 90 ° ~ 270 °.By about stir plate 61, can control latch 511 and whether stretch out outside the chair back, and as long as plate 61 of control just can be controlled the latch 511 of both sides simultaneously.

Embodiment 2, shown in Fig. 6-8, the critical piece of chair or the chair back 1, handrail 2 and bench 3, mainly be stop member 23 another kind of embodiments, stop member 23 comprises stopping means 4 and adjusting device 9, offer a rectangular recess 44 on the medial surface of handrail 2, a through hole 48 is arranged in the groove 44, stopping means 4 comprises baffle plate 41, the width of baffle plate 41 is greater than the degree of depth of groove 44, be connected to the stage clip 42 on the baffle plate 41, the fixed block 43 that is fixedly connected with stage clip 42, described fixed block 43 is fixedly connected with handrail 2.Described adjusting device 9 comprises threaded rod 45, compressing tablet 46 and the knob 47 that is threaded with threaded rod 45; Described threaded rod 45 is fixedly connected with baffle plate 41, and compressing tablet 46 is fixedly connected with knob 47.Baffle plate 41 in the stopping means 4, stage clip 42 and fixed block 43 all are to arrange in the groove 44, offer through hole 48 in the groove 44, and threaded rod 45 passes through hole 48 and is connected with baffle plate 41, and compressing tablet 46 and knob 47 all are arranged on outside the handrail.By rotation knob 47, the compressing tablet 46 on the knob 47 can produce a pressure to handrail gradually, fixes the position of baffle plate 41 by the frictional force of this pressure generation.Baffle plate 41 upsides also arrange draw-in groove 52, match with buckle 51 on the chair back 1, and the chair back 1 can cooperating by buckle 51 and draw-in groove 52 like this, the chair back 1 is fixed on the baffle plate 41, even the user leaves the chair back 1, do not give the chair back 1 active force, the chair back 1 can not rotate yet.The rotational angle that so user can the manual adjustments chair back 1.When not needing to use chair or transportation chair, can unclamp knob 47, allow buckle 51 and draw-in groove 52 unclamp, then the chair back 1 to be overturn, maximum can make it pasting bench 3 and deposit.

Embodiment 3, and as described in Fig. 9-10, this chair arranges a buckle 51 at the chair back, be used for and handrail 2 on stop member 23 be baffle plate 41 clamping that matches.Buckle 51 by jointed shaft 144 hinged fixed head 145, linking springs B146 between fixed head 145 and the buckle 51, fixed head 145 are fixedly connected on the chair back 1 inside, can only see buckle 51 outside chair.Buckle 51 is driven by drive link 143, and drive link 143 arranges actuating arm 14 by swing arm 142 connection of rotating seats 141 on the rotation seat 141; The rotation seat 141 here can be a universal joint.Actuating arm 14 swings, and drives the rotation of rotation seat 141 inner shafts, thereby drives the rotation of swing arm 141, and swing arm 141 can drive again buckle 141 around the rotation of certain limit centered by the jointed shaft 144.Spring B 146 can allow buckle 141 automatically reset.

Actuating arm 14 can be turned to the state vertical with handrail 2 after the chair back 1 is folding, actuating arm 14 can be staggered with handrail 2, is turned to the use state in order to stop the chair back 1.

Embodiment 4, can see from Figure 11-12, between the described chair back 1 and the bench 3 guide rail 10 are set.Guide rail 10 is divided into the interior rail 101 and the outer rail 102 that with bench 3 be fixedly connected with hinged with the chair back 1, interior rail 101 and outer rail 102 all are circular-arc, interior rail 101 moves in outer rail 102, location-plate 1011 of outer rail 102 interior welds, a side of rail 101 motions inwardly is fixedly connected with Billiard apparatus 1012 on the location-plate 1011, Billiard apparatus 1012 described here can be a spring, one end of spring is fixedly connected with location-plate 1011, the other end also is fixedly connected with a portable plate, and portable plate contacts with interior rail 101.When the chair back 1 turns to use angle, interior rail 101 just in time contacts with portable plate or spring has been produced some pressure, 1012 pairs of chair back of Billiard apparatus 1 produce a cushion effect, the user can feel rocking chair of this chair back 1 picture like this, the chair back 1 can be along with the exert oneself size of degree of user, and the chair back 1 can swing.

Claims

1. chair, comprise the chair back (1), bench (3) and be arranged on handrail (2) on the bench (3), it is characterized in that: articulated section (11) is set on the described chair back (1), be hinged with described handrail (2), described articulated section (11) comprise the through hole (13) that turning cylinder (7) and upper corresponding turning cylinder (7) position of described handrail (2) arrange; The lower end of the described chair back (1) arranges stop part (12), the upper stop member (23) that is used for the restriction chair back (1) rotational angle that matches with stop part (12) that arranges of described handrail (2).

2. by a kind of chair claimed in claim 1, it is characterized in that: described handrail (2) is upper arrange in order to handrail (2) is fixed on the bench (3) fixed area (21) and in order to limit the Resistance (22) of the chair back (1) rotational angle.

3. by a kind of chair claimed in claim 2, it is characterized in that: the reinforcement (8) of tubulose is set in the through hole (13) of described handrail (2), and the footpath at the two ends of described reinforcement (8) upwards arranges tubulose fin (82).

4. by a kind of chair claimed in claim 3, it is characterized in that: be provided on the described reinforcement (8) preventing that turning cylinder (7) from passing the outer block (81) of reinforcement (8).

5. by a kind of chair claimed in claim 1, it is characterized in that: the switching device (6) that also comprises fixture (5) and control fixture (5); Described fixture (5) is used for the chair back (1) when turning to certain angle, and the chair back (1) is fixed on the handrail (2).

6. by a kind of chair claimed in claim 5, it is characterized in that: described fixture (5) comprises the latch (511), the groove (514) that is arranged on upper corresponding described latch (511) position of handrail (2) that are arranged in the chair back (1), is enclosed within the spring A(513 on the latch (511)) and be used for preventing spring A(513) pass the outer card (512) of the chair back (1); Described latch (511) can pass outside the chair back (1).

7. by a kind of chair claimed in claim 6, it is characterized in that: described latch (511) is divided into left latch (5111) and the right pin (5112) that is arranged on the chair back (1) left and right sides, described switching device (6) comprises the plate (61) that is fixedly connected with right pin (5112), the fixed axis (62) that is rotationally connected with plate (61), the connecting rod (63) that is fixedly connected with plate (61) one ends, described connecting rod (63) is connected on the rotating shaft (65) by upper rotatable lamella (64), lower rotatable lamella (66) also is set on the rotating shaft (65), lower rotatable lamella (66) is connected with left latch (5111), left latch (5111) cover has catch (67), and described catch (67) is enclosed within spring A(513 on the left latch (5111) in order to restriction) the position.

8. by a kind of chair claimed in claim 1, it is characterized in that: the stop member (23) on the described handrail (2) comprises stopping means (4) and adjusting device (9); Described stopping means (4) comprises baffle plate (41), is connected to the stage clip (42) on the baffle plate (41), the fixed block (43) that is fixedly connected with stage clip (42); Described fixed block (43) is fixedly connected with handrail (2), and described adjusting device (9) is used for the position of controllable register (41); Described adjusting device (9) comprises threaded rod (45), compressing tablet (46) and the knob (47) that is connected with threaded rod (45); Described threaded rod (45) is fixedly connected with baffle plate (41), and compressing tablet (46) is fixedly connected with knob (47).

9. by a kind of chair claimed in claim 1, it is characterized in that: the stop member (23) on the described handrail (2) is baffle plate (41), upper corresponding baffle plate (41) position of the described chair back (1) arranges buckle (51), buckle (51) is by the hinged fixed head of jointed shaft (144) (145), linking springs B(146 between fixed head (145) and the buckle (51)), buckle (51) is driven by drive link (143), drive link (143) arranges actuating arm (14) by swing arm (142) connection of rotating seat (141) on the rotation seat (141); Described actuating arm (14) can be turned to the state with handrail (2) vertical interlaced after the chair back (1) is folding, get back to the use state in order to stop that the chair back (1) overturns again.

10. by claim 5 or 8 or 9 described a kind of chairs, it is characterized in that: between the described chair back (1) and the bench (3) guide rail (10) is set, described guide rail (10) is divided into the interior rail (101) that is connected with the chair back (1) and the outer rail (102) that is connected with bench (3), interior rail (101) is along the orbiting motion of outer rail (102) profile, outer rail (102) inside arranges location-plate (1011), and a side of rail (101) motion inwardly is fixedly connected with Billiard apparatus (1012) on the location-plate (1011).