CN201870157U

CN201870157U - Chair

Info

Publication number: CN201870157U
Application number: CN2010202529214U
Authority: CN
Inventors: 伊瑞西·贝克尔; 黑克·博特内尔; 卡斯特恩·格艾讷
Original assignee: Wilkhahn Wilkening and Hahne GmbH and Co KG
Current assignee: Wilkhahn Wilkening and Hahne GmbH and Co KG
Priority date: 2009-07-14
Filing date: 2010-07-09
Publication date: 2011-06-22
Anticipated expiration: 2020-07-09
Also published as: JP2011019877A; JP5478142B2; DE202009009612U1

Abstract

The utility model relates to a chair, which is provided with a seat and a seat mechanism, wherein the seat mechanism is provided with supporting arms; the supporting arms are arranged at both sides of the seat mechanism, take the effect independently and are always supported by spring mechanisms; the seat is fixed on the supporting arms; and when one side of the seat is deflected laterally, the side of the seat can be independent of the other side of the seat to move. Moreover, the chair is also provided with regulating tools for regulating the hardness of the two spring mechanisms together.

Description

Chair

Technical field

The utility model relates to a kind of chair that is provided with a seat and a seat mechanism, and wherein, this seat mechanism can make the seat do the lateral deflection campaign.

Background technology

Known design is seen case EP-B-1051931 from practice, and it allows seat to rotate multi-facetedly; Wherein, rotary gemel is positioned near the vertical center line that also passes through the seat face of central shaft; Yet the design of this machinery has shortcoming, and promptly this seat needs the user constantly to participate in regulation and control to prevent that accident from toppling over; Because its flexibility is often to regulate their hardness, thereby has limited the characteristic of free rotation and adapted to freely moving of user's health.

US-2004/195882A1 discloses a kind of chair, and it can make the yaw motion of side direction, and the rotating shaft in the middle of the seat extends to user's thigh place abreast simultaneously.This seat is divided into several sections on the direction of rotating shaft, wherein reverse yaw motion is made around rotating shaft all the time in the left side of each part and right side.

Another kind of chair is described among the JP-10151033A, and it shows by means of a right one side of something and a left one side of something of seat, and the two can be provided with resiliency supported independently of each other.

US-5713632 discloses alternative chair, and its seat is provided with two one side of something, and they are correspondingly around a rotating axle that approximately is parallel to the operation of user's thigh.This chair should be a kind of comfortable seat, also may implement the long time.

EP-1946676A1 discloses a kind of chair that is provided with a seat and seat mechanism, wherein, this seat mechanism is provided with the support arm separate running in both sides, that also always support with a spring mechanism, the seat is fixed on this support arm, wherein, when seat side during to yaw motion, a side at this seat can be independent of the opposite side motion at seat.

Based on such prior art, established goal of the invention of the present utility model, the deflection characteristic of this chair can be regulated with simple form and method.

The utility model content

The purpose of this utility model is that the technical characterictic by claim 1 solves.

Chair of the present utility model is provided with a seat, a seat mechanism, and wherein, that seat mechanism is provided with is two side direction, can separate effect, and always by the support arm of a spring mechanism supporting, this seat is fixed on the support arm.Wherein, when sideshake is made in a side at seat, can be independent of the another side motion at seat.In addition, also be provided with the adjustment means that is used for regulating jointly two spring mechanism hardness.

Therefore, these two support arms are deflection independently of each other, and the hardness of two relevant spring mechanisms can be regulated by adjustment means jointly.

Other structure of the present utility model is the theme of dependent claims.

According to preferred structure of the present utility model, this seat is provided with a seat and a backrest, and wherein, backrest and seat can move relative to each other.In addition, these two support arms are preferably hinged pivotally on a base support at the front end place at seat.

Another structure regulation of the present utility model, the adjustment means that spring mechanism always is provided with a spring element and constitutes with following manner, promptly the hardness of this spring mechanism is regulated the tension force that need not to change spring element and can be implemented.Can realize by embodiment: two spring elements are connected with a corresponding load transmitter, simultaneously, load transmitter correspondingly is in effective the contact as follows with each autocorrelative support arm, promptly the yaw motion of this support arm causes the change in location of the load transmitter on guide rail in the tension variation of spring element.For the adjusting of spring mechanism, particularly can regulate simultaneously guide rail, perhaps can center on a yawing axis rotating support.The yawing axis of this guide rail is by following setting, and promptly the hardness of this spring mechanism is regulated and made guide rail deflection, and need not to change the tension force of spring element.

For the common adjusting of two guide rails, adjustment means can comprise that one is slidably regulated wedge and a rotatable threaded rod, wherein, regulates wedge and can regulate by threaded rod.

According to another kind of structure of the present utility model, one of at least two support arms rotatably are fixed on the hinged hollow shaft, be in effective contact at the one end support arm relevant with spring mechanism, and this adjustment means run through guiding by hollow shaft.Can implement a kind of very compact adjustment means by this way.

According to another kind of mechanism of the present utility model, this seat only is connected with seat mechanism in the front area of its seat; In addition, this seat can be bearing on the support arm by spherical linkage; Wherein, first and second spherical linkage are installed in the following zone of backrest, and the 3rd and the 4th spherical linkage are installed in the region in front of seat seat.In addition, this seat mechanism can be by following formation, and promptly backrest can center on the first and second spherical linkage deflections, and backrest and seat intercouple together by following mode, and promptly backrest causes seat to promote with respect to support arm to post deflection; Can certainly not spherical linkage, have the Connection Element of the similar free degree to substitute and can use with it, for example, rubber bumper.

The utility model additional advantage and structure are done detailed explanation by following several embodiment and accompanying drawing.

Description of drawings

Accompanying drawing 1a to 1c: according to each view (vertical view, rearview, side view) of the chair of first embodiment;

Accompanying drawing 1d and 1e: be the rearview of chair when the position vertical or lateral tilt;

Accompanying drawing 1f and 1g: be the side view of chair when normal position or the sweptback position;

Accompanying drawing 1h to 1j: be the chair by second embodiment, the side view when when the position of different inclinations, being provided with instrument;

Accompanying drawing 2a: for the part of chair side view is analysed and observe, the spring mechanism shown in being provided with;

Accompanying drawing 2b: be the cutaway view of chair in the spring mechanism zone;

Accompanying drawing 2c: the spring mechanism according to accompanying drawing 2b expresses, wherein be equipped with the adjustment wedge;

Accompanying drawing 2d: be the cutaway view (hardness adjusting) of chair in the spring mechanism zone

Accompanying drawing 2e: the spring mechanism according to accompanying drawing 2d expresses, wherein be equipped with the adjustment wedge;

Accompanying drawing 2f: be the rearview of chair in the spring mechanism zone;

The specific embodiment

According to the 1st embodiment, mainly form by a seat 1, a seat mechanism 2 and a base support 3 at the chair shown in Fig. 1 a to Fig. 1 g.This seat also is provided with a seat 10 and a backrest 11, and what they were passable moves relative to each other; This relative motion performance can be made of an adaptive tow-away zone or buckled zone, and wherein seat 10 and backrest 11 not only can be single-pieces, and can be made of the parts that separate.

This base support 3 is provided with a kind of foot rest of usually arbitrarily settling, and is used for rest seat and seat mechanism.

Support arm both sides,

separate effect

20,21 shown in this seat mechanism 2 is provided with in an embodiment, seat 1 is fixed on the two.These two support

arms

20,21 are hinged on a gyroaxis or the rotating shaft 22 pivotally, simultaneously, this gyroaxis or the following mode of rotating shaft 22 usefulness are bearing on the base support 3, promptly this gyroaxis or rotating shaft 22 are installed in the front end at the seat on the base support, that is to say, be installed in big in user's knee joint axis zone.

In an illustrated embodiment, seat 1 is hinged on the

support arm

20,21 by means of spherical linkage, wherein, first and second

spherical linkages

23,24 are installed in the lower area of backrest 11, and the 3rd and the 4th

spherical linkage

25,26 are installed in the front area of seat 10;

Spherical linkage

23,24 and 25,26 installation always are symmetrical in central plane 4, the first and second

spherical linkages

23,24 of chair and the distance between user's hip joint axle is preferably less than 0.2 meter; In addition, the distance of two spherical linkages is between 0.1 meter and 0.5 meter.

In addition, this seat 10 is in the zone of the 3rd and the 4th

spherical linkage

25,26, and/or backrest 11 supports slidably with respect to support

arm

20,21 in the zone of first and second

spherical linkages

23,24; In specific embodiment, the 3rd and the 4th

spherical linkage

25,26 have slidably property, and this just can make backrest recede or rotate forward, shown in Fig. 1 F and 1g; The gyration of backrest causes that not only seat moves forward, and also causes backrest 11 around 23,24 deflections of first or second spherical linkage; In addition, this backrest 11 intercouples in such a way with seat 10 and is in the same place, and promptly backrest causes seat to rise with respect to support arm to post deflection; The rising of seat mainly is to realize with the parts of seat back, and at this place, descending in the time of by support arm causes the parts of seat 10 back to move down together.

Therefore, this backrest 11 yaw motion backward mainly is to realize around swinging axle or rotating shaft 22 by the yaw motion of

support arm

20,21; 25,26 slidably property of this spherical linkage can realize when leaning on backward, forms the angle of an expansion between seat 10 and backrest 11.

According to second embodiment, this

spherical linkage

25,26 is provided with the distance A of 22 on one and gyroaxis or rotating shaft.The

spherical linkage

25,26 that this seat 10 relates to can support forward or backward slidably, and at this place, a slip backward can be unresisted, and the locating part 27 that slides through forward is limited; This locating part 27 can constitute elastomeric stopper with a fixing or downward pressure.

As scheme shown in the li, total inclination at this seat or swing are can be unresisted, do not need to carry out around

spherical linkage

23,24 for the rotation of backrest, therefore, remain unchanged when the angle [alpha] 1 between seat 10 and the backrest 11 can be in swing.

11 rotations of a backrest also always link to each other with 26 with seat related spherical linkage 25 that slides; Shown in Fig. 1 h, spherical linkage 25 contacts with locating part 27 with 26, and like this, it is impossible that a seat is rotated separately by this position around

hinge

23,24; Therefore necessary is that this seat applies a downward-sloping pressure at the pressure of one side by locating part 27 to

spherical linkage

25,26.

Owing to this situation, produced the result of the mechanical synchronization of seat inclination and backrest inclination (β 1-β 2/ α 2-α 1), they only work in one direction; For the user, its advantage is, obtains comfortable buffering owing to swinging freely when people sit on the chair, can not lose the contact of backrest; And when the user still continues to lean on backward, have mechanical synchronization process a kind of coordination and that determine and tilt and backrest inclination in order to the domination seat.

About the left side at seat, the feature of right flank self-movement, on the position in second embodiment of the present utility model, the weight offset of side works by the inclination of a side seat, and the user does not lose with backrest and contacts.

These two

support arms

20,21 always are pressed on the normal position through an

adaptive spring mechanism

40,41, that is to say, are pressed on the vertical position, shown in Fig. 1 f.

These two support arms not only can be jointly, promptly synchronously, be in deflection under no swinging axle or rotating shaft 22 situations, also can center on swinging axle or rotating shaft 22 deflections independently of one another; This independently deflection can realize a lateral deflection at seat, as shown in Fig. 1 e with respect to pressing the upright position shown in Fig. 1 d.Except independently, the

interactional support arm

20,21, seat itself is also by following formation: a side promptly on the left side or the right side at seat, when sideshake, always can be independent of the motion of the opposite side at seat; In other words, not the lateral tilt of whole seat, but produced a seat, the separate motion of the left and right two halves of seat particularly.In described embodiment, this swinging axle or rotating shaft 22 are that rigidity constitutes, and the hinge on the seat only can be realized the displacement of an approximate horizontal at seat, but the seat region in front is reduced.As shown in Fig. 1 c, when a seat lateral deflection, seat, particularly seat have produced one and have reversed.Certainly, except this motion, yet may be the deflection of backrest and/or the stack of reversing.

Fig. 2 a has showed the side view of comparatively detailed chair once more, wherein is apparent that especially, is provided with

spring mechanism

40,41 in base support 3.As shown in the figure, this chair relates to and for example is one and has the office chair that changes foot support 5.

Two

support arms

20,21 are always by 40,41 supportings of a spring mechanism; By this way, two support arms can act on independently of each other, therefore, can be independent of the opposite side at seat when the side at seat during in the seat lateral deflection and move.These two spring mechanisms have identical structure, its main corresponding setting comprises: spring element 42,42 ', connected Load Transfer part 43,43 ',

load lever

44,44 that is fixedly linked with respective support arms ' and a corresponding guide rail 45.Below will describe in detail spring mechanism 40 by Fig. 2 b to 2e.

This spring element 42 is fixing by a spring keeper 46, and with its overhang bracket on the abut 47 of base support 3, be bearing on the ring flange 46a of spring keeper 46 with its other end again.Being positioned at the relative end of spring keeper 46, be provided with load transmitter 43, for example it can be made of one or more rollers or wheel.This spring keeper 46 freely leads in the passage of abut 47, and can make load transmitter 43 occurrence positions variation once more thus.

When this supporting

arm

20 or 21 was swung around swinging axle 22, the load lever 44 that is associated was synchronized with the movement with it, and is pressed on the load transmitter 43, and at this moment, a change in location on guide rail 45 is produced simultaneously with the tension variation of spring element 42.Therefore, if the arrow 48 direction upper deflectings of support arm 21 in Fig. 2 b, load transmitter 43 moves on the direction of arrow 49, and spring element 42 is compressed on the direction of arrow 50.If alleviate pressure on the support arm 21, spring element 42 compression loads transmit part 43, thereby and make load lever 44 and support arm 21 be in the neutral position shown in Fig. 2 b again.

In order to make chair adapt to different users's weight and custom characteristics, adjustment means will be set, be used for the hardness of two spring mechanisms is carried out common adjusting.Wherein another characteristics are, regulate under can be at the tension force of the spring element 42 constant situation of the hardness of this spring mechanism.This adjusting realizes that by following method promptly the element 45a to guide rail 45 and guide rail regulates, particularly the adjusting of carrying out under the situation of deflection.In Fig. 2 d, represented the position versus behind the changing shown in this guide rail 45 and this track element 45a and Fig. 2 b.

To this, when the equilbrium position that is in shown in Fig. 2 b, the adjusting of this guide rail 45 can not cause the tension variation of spring element 42, and the rotating shaft 45b of this guide rail 45 is positioned at the zone of load-transmitting element 43.

Regulate for the hardness of the deflection of guide rail 45 and spring mechanism and to have stipulated adjustment means, it comprises that of being located among the described embodiment regulates a wedge 51 and a screw rod 52 (Fig. 2 c, Fig. 2 e); Simultaneously, the rotation of this screw rod 52 is regulated adjusting wedge 51 between two positions shown in Fig. 2 c and the 2e.Regulate wedge 51 and be in contact condition with guide rail 45 with track element 45a; Simultaneously, the adjusting of adjusting wedge 51 causes around the rotation (seeing Fig. 2 b, 2d) of the element 45a of rotating shaft 45b along screw rod 52.Shown in Fig. 2 b, in the adjustment process of this guide rail 45, the adjusting of spring mechanism is easier compared with the adjusting shown in Fig. 2 d; Therefore, this support arm 21 can more easily be reduced to the position of an inclination by the intermediate equilibria position in the adjusting of guide rail 45 according to Fig. 2 b.

Shown in Fig. 2 a and 2f, two

spring mechanisms

40,41 that are used for two

support arms

20,21 are installed in about center of the base support 3 below the seat 10.

This track element 45a promptly not only provides the guide rail 45 of the load transmitter 43 that is used for spring mechanism 40, and a guide rail that is used in the load transmitter 43 ' of spring mechanism 41 is provided by following formation.Therefore, it is fully essential regulating wedge 51, and it can be regulated by screw rod 52.

By accompanying drawing 2f also obviously as seen, this load transmitter 43 and 43 ' always constitutes by three rollers or the roller of installing on an axle, and wherein, two exterior roller contact with load lever 44, and the roller at middle part and corresponding guide rail contact.In addition, in Fig. 2 f, can see, the rotating shaft 45b of track element 45a roughly be positioned at load transmitter 43,43 ' the zone.

This adjustment means also comprises a load transmitter 43, is in connection status in its end by a Bevel Gear Transmission device and screw rod 52, and is provided with a regulating element 54 at its other end, particularly is provided with a turning handle.This transfer element 53 stretches out perpendicular to 52 screw rods, therefore, be sitting on the chair the user as snug as a bug in a rug, and can carry out the hardness adjustment to two

spring mechanisms

40,41 easily.

According to a kind of preferred structure of the present utility model, track element 45a is connected with the self-locking of regulating between the wedge 51 that connects and composes, and does not therefore need the extra locking of regulating element 54.

Be provided with centre rotational axis 22, two

support arms

20,21 in the centre of two spring mechanisms protruding.Therefore, be necessary to make support arm 21 to be connected with two

spring mechanisms

40,41 by rights.In this case, by two axles, particularly

hollow shaft

55,56, make in the scope of centre rotational axis 22 can with suitable, rotate hinged in the clear mode of expressing.Each axle head is rotatably connected with

relevant support arm

20,21, and is rotatably connected with corresponding axle in the end of

load lever

44 or 44 '.These two load levers mode that always oneself describes with the front and method and two spring elements 42,42 ' acting in conjunction.

The transfer element 53 that constitutes as axle runs through guiding by hollow shaft 56, has formed a very compact device thus.

The support arm that both sides are installed by above-mentioned spring mechanism moves independently of each other, and the effect of above-mentioned adjustment means still can be done common the adjusting to the hardness of spring mechanism.

Claims

1. chair, be provided with a seat (1) and a seat mechanism (2), wherein, this seat mechanism is provided with support arm (20,21) effect two sides, separate, that also always support by a spring mechanism (40,41), and this seat (1) is fixed on the support arm; When the lateral deflection campaign was done at this seat, a side at seat can be independent of the opposite side motion at seat; It is characterized in that: be provided with the adjustment means that is used for regulating jointly two spring mechanisms (40,41) hardness.

2. according to the described chair of claim 1, it is characterized in that: described seat (1) is provided with a seat (10) and a backrest (11), and wherein, backrest and seat can move relative to each other.

3. according to the described chair of claim 1, it is characterized in that: described two support arms (20,21) but the front end at hinged seat (1) on a base support (3), deflection ground.

4. according to the described chair of claim 1, it is characterized in that: described spring mechanism (40,41) always is provided with a spring element (42,42 '), and this adjustment means constitutes as follows, i.e. the enforcement of this spring mechanism hardness adjusting need not to change spring element tension force.

5. according to the described chair of claim 1, it is characterized in that: have at least in two support arms (20,21) on the hollow shaft (55,56) that is fixed on a rotatable supporting, effectively contact with the spring mechanism (40,41) that support arm (20,21) is installed at the one end, and this adjustment means runs through guiding through hollow shaft.

6. according to the described chair of claim 1, it is characterized in that: two spring mechanisms (40,41) correspondingly are provided with a spring part element (42,42 ') and a load transmitter that links with it, simultaneously, load transmitter (43,43 ') is in effective contact condition as follows with relevant support arm, the yaw motion that is support arm makes the change in location of load transmitter on a guide rail (45), causes the tension variation of spring element (42,42 ') simultaneously.

7. according to the described chair of claim 6, it is characterized in that: load transmitter (43,43 ') constitutes with a running roller at least.

8. according to the described chair of claim 6, it is characterized in that: the guide rail (45) that is used for regulating spring mechanism hardness is adjustable.

9. according to the described chair of claim 6, it is characterized in that: the guide rail (45) that is used for regulating spring mechanism hardness can be regulated by means of adjustment means.

10. according to the described chair of claim 6, it is characterized in that: this guide rail is hinged rotationally on a rotating shaft.

11. according to the described chair of claim 10, it is characterized in that: the gyroaxis (45b) of this guide rail (45) is by following formation, i.e. the adjusting of spring mechanism hardness causes the deflection of guide rail (45), and need not to change the tension force of spring element simultaneously.

12. according to the described chair of claim 6, it is characterized in that: the adjustment means that is used for regulating jointly two guide rails (45) of two spring mechanisms (40,41) is provided with one and slidably regulates wedge.

13. according to the described chair of claim 12, it is characterized in that: this adjustment means also comprises a rotating threaded rod (52), wherein regulates wedge (51) and can regulate by threaded rod.

14. according to described chair one of in the claim 1 to 13, it is characterized in that: this seat (1) only interconnects with this seat mechanism (2) in its front area of seat (10).

15. according to described chair one of in the claim 1 to 13, it is characterized in that: described seat (1) is supported on the support arm (20,21) by means of spherical linkage (23,24,25,26).

16., it is characterized in that described seat (1) is supported on the support arm (20,21) by means of spherical linkage (23,24,25,26) according to the described chair of claim 14.

17. according to the described chair of claim 1, it is characterized in that: first and second spherical linkages (23,24) are arranged on the lower area of the individual backrest (11) at seat, and third and fourth spherical linkage (25,26) is arranged in the front area of seat (10) at seat.

18. according to the described chair of claim 16, it is characterized in that: this backrest (11) can center on first and second spherical linkages (23,24) deflection, and backrest (11) and seat (10) intercouple as follows, and promptly a backrest causes this seat upwards to promote with respect to support arm (20,21) to post deflection.