CN209202481U - The seat of adjustable chair back tilt angle - Google Patents

Abstract

A kind of seat of the utility model about adjustable chair back tilt angle, main system is linked by a tilting unit and seat body, when human body is seated at chair body and is obliquely oriented force, as long as the button of pressing adjustment at this time, the telescopic rod of air pressure rod will be shunk down, by being mutually pivotally connected between link plate, the first tilt stand, the second tilt stand, so that tilting unit integrally tilts backwards, formed skewed to interlock the chair back, tilt angle is mainly determined by the collapsing length of the size of force and telescopic rod.

Description

The seat of adjustable chair back tilt angle

Technical field

The utility model relates to a kind of seat, espespecially a kind of seat of adjustable chair back tilt angle.

Background technique

TaiWan, China letters patent book number M536006 " back of chair structure " is please referred to, which discloses: an engagement Seat, a support base, a connecting piece, and the engagement seat is mounted on Chair back lower position, pivot on one is respectively set in two side of top Socket part；One support plate of support seat tool, a pad again, the pad are set in front of support plate, and two side of support plate corresponds to Articulated section is arranged in articulated section position；The connecting piece has hinged arm, elastic component again, which provides aforementioned upper articulated section and articulated section pivot It connects, and the elastic component provides the corresponding engagement seat of support base and pivots elastic force；Such the utility model can cooperate ergonomics to adjust Lumbar pad angle is to promote applicability and comfort.

However, such seat it is insufficient be in back tilting angle be it is fixed, can not habit according to user, need It asks, like and be adjusted, for this purpose, the utility model designer thinks that this has improved necessity.

Utility model content

In view of shortcoming described in the prior art, the utility model designer proposes a kind of means of solution, the means A kind of seat about adjustable chair back tilt angle.

In order to achieve the above purposes, the technical solution adopted by the utility model is:

A kind of seat of adjustable chair back tilt angle, it is characterized in that including:

One seat body: the chair back being set to including a chair cushion and one on rear side of the chair cushion；

One tilting unit: link plate, one first tilt stand, one second tilt stand for being set to the chair cushion bottom surface including one And an air pressure rod, at the top of the air pressure rod it is naked go out a telescopic rod, the top of the telescopic rod and the link plate directly or indirectly form pivot It connects, which is fixedly arranged on front side of the air pressure rod, and the other end and the link plate form pivot joint and stretch positioned at this The front of bar, and one section of portion of first tilt stand wears one along the hole of the first tilt stand inclined direction setting；It should Second tilt stand and the link plate, which are formed, to be pivotally connected, and a rod segment is each passed through one end and this hole of second tilt stand, The other end of first tilt stand is located at the front side of the second tilt stand other end；

One chair leg pedestal: it is formed and is linked with the bottom end of the air pressure rod.

The seat of the adjustable chair back tilt angle, in which: pass through one between the link plate and second tilt stand Pivotal axis forms pivot joint, which includes a corner post, one first pipe sleeve and one second pipe sleeve, the corner post, the first pipe sleeve and the Two pipe sleeves are sequentially sheathed on the corner post outside from left to right, and are formed between the first pipe sleeve left end and the corner post left end blind Envelope, forms blind envelope between the second pipe sleeve right end and the corner post right end, and a convex body, convex body tool are equipped on the outside of first pipe sleeve There are the screw hole towards the link plate bottom surface, a screw rod and the screwhole spiro bonding, so that one end operability of the screw rod resists the connection Board bottom face or the separate link plate bottom surface；The link plate bottom surface is located at respectively on the outside of first pipe sleeve and second pipe sleeve, and It is formed and is pivotally connected with first pipe sleeve and second pipe sleeve respectively；The chair back connects the second tilt stand other end, and this second Tilt stand includes one first connecting piece and one second connecting piece, which is hubbed at the right end end of the first sleeve Edge, second connecting piece are hubbed at second outside of sleeve, and one is equipped between first connecting piece and second connecting piece and is interlocked Part, the moving part are fixedly arranged on the outside of second pipe sleeve.

The seat of the adjustable chair back tilt angle, in which: it is additionally provided with an operation button for being connected by power the air pressure rod, The operation button for the operational control telescopic rod retracted position.

The seat of the adjustable chair back tilt angle, in which: the peritreme along this hole is additionally provided with a washer.

It interlocks mutually, cooperate in this way, the utility model mainly passes through each element in the tilting unit, to enable user sit After chair cushion, is then exerted a force to the seat body toward rotation direction by pressing the operation button, can start to adjust the chair Back asks rake angle, the operation button is decontroled after having adjusted, which just forms fixation.Reply the chair back former When this tilt angle, it is only necessary to press the operation button again, then cancel the force to the seat body, at this point, flexible by this Bar replys script position, and then interlocks the rotation of each element in the tilting unit, finally drives the chair back to return back to and tilts originally Angle.Therefore, the utility model may achieve the purpose for driving the back tilting, to improve shortcoming described in the prior art.

Detailed description of the invention

Fig. 1 is the outside drawing of the utility model.

Fig. 2 is the tilting unit outside drawing of the utility model.

Fig. 3 is the tilting unit exploded view one of the utility model.

Fig. 4 is the tilting unit exploded view two of the utility model.

Fig. 5 is the tilting unit side view of the utility model.

Fig. 6 is the back tilting illustrative view of the utility model.

Fig. 7 is the tilting unit cross-sectional view of the utility model.

Description of symbols: 1- seat body；11- chair cushion；The 12- chair back；2- tilting unit；21- link plate；22- first Tilt stand；221- hole；222- pipeline section；223- washer；The second tilt stand of 23-；The first connecting piece of 231-；232- second connects Sheeting；233- moving part；24- air pressure rod；241- telescopic rod；242- operation button；243- rod segment；The 25- body of rod；26- pivotal axis； 261- corner post；The first pipe sleeve of 262-；The second pipe sleeve of 263-；27- screw rod；28- convex body.

Specific embodiment

The auxiliary for relying on schema below, illustrates the construction, feature and embodiment of the utility model, so that your audit crew pair There is further understanding in the utility model.

Refering to Figure 1, a kind of seat of the utility model about adjustable chair back tilt angle, comprising:

One seat body 1:

Refering to Figure 1, the seat body 1 includes a chair cushion 11 and the chair back 12 on rear side of the chair cushion 11.

One tilting unit 2:

It please refers to Fig. 2 to cooperate shown in Fig. 3 and Fig. 4, which includes a link plate for being set to 11 bottom surface of chair cushion 21, one first tilt stand 22, one second tilt stand 23 and an air pressure rod 24, the naked telescopic rod out in 24 top of air pressure rod 241, the top of the telescopic rod 241 and the link plate 21 are directly or indirectly formed and are pivotally connected, and 22 one end of the first tilt stand is fixed In 24 front side of the air pressure rod, the other end and the link plate 21 form pivot joint and are located at the front of the telescopic rod 241, and this first inclines 22 1 sections of portions of tilted supporter wear one along the hole 221 of 22 inclined direction of the first tilt stand setting；Second tilt stand 23 It is preferably formed and is pivotally connected with a pivotal axis 26 with the link plate 21, and a rod segment 25 is each passed through one end of second tilt stand 23 And this hole 221, the other end of first tilt stand 22 are located at the front side of 23 other end of the second tilt stand.By upper The collocation of first tilt stand 21 and second tilt stand 23 stated, to enable the chair back 12 be able to adjustment tilt angle.Also, To reduce the friction between the rod segment 25 and this hole 221, preferably peritreme of the system along this hole 221 sets a washer 223.

Wherein, which forms indirect pivot joint, and as shown, the pipe with the link plate 21 with a pipeline section 243 The screw rod of the such as, but not limited to screw of section 243.Likewise, 22 one end system of the first tilt stand by a pipeline section 222 with The link plate 21 forms pivot joint, which is such as, but not limited to the screw rod of a screw.

In addition, for the actuation convenient for controlling the air pressure rod 24, to adjust the exposed length of the telescopic rod 241, the air pressure rod 24 is implementable are as follows: more sets an operation button 242 for being connected by power the air pressure rod 24, the operation button 242 is for operational control The retracted position of the telescopic rod 241, whence this, by changing the retracted position of the telescopic rod 241, for adjusting inclining for the chair back 12 Rake angle.Also, to be conveniently adjusted the tilt angle of the chair back 12, the specific embodiment of the chair back 12 is preferable are as follows: the chair back 12 23 other end of the second tilt stand is connected, mode of operation is asked as described below.

One chair leg pedestal 3:

It please refers to Fig. 1 to cooperate shown in Fig. 6, the bottom end of the chair leg pedestal 3 and the air pressure rod 24, which is formed, to be linked, and for convenient for shifting Dynamic, which is preferably equipped with a wheel tool group 31.

It please refers to Fig. 5 to cooperate shown in Fig. 6 and Fig. 3, Fig. 4, is below the work for introducing the utility model each element when operation Flowing mode, rotation direction can refer in figure shown in arrow, after human body is sitting in chair cushion 1, by pressing the operation button 242, at this point, body wt will exert a force to the other end of second tilt stand 23 when human body back tilts backwards, this When, which will be axis rotation with the pivotal axis 26, to enable the telescopic rod 241 move down, meanwhile, it should Rod segment 25 can be moved along this hole 221, also due to the event that the telescopic rod 241 moves down, will impose 21 one end of link plate Downward power, at this point, the link plate 21 is rotated using the other end of first tilt stand 22 as axle center, for further adding The tilt angle of the big chair back 12, so completes the inclined purpose of the chair back 12.In addition, being worth mentioning is, pass through human body back The of different sizes of strength is applied to the chair back 12, for controlling the tilt angle of the chair back 12, after reaching inclination mesh, The operation button 242 is decontroled, the tilt angle of the chair back 12 will fix.And after the operation button 242 presses once more, only Cancel the force to the seat body 1, which will reply script position and be moved upward to top dead-centre, according to Above-mentioned actuation principle, and the chair back 12 is driven to restore to the original state.

Hence this, by above-mentioned construction and actuation principles and methods, it will be clearly understood that the seat of the utility model provides use Person tilts the function of the chair back, to improve shortcoming described in background technique.

Cooperate shown in Fig. 2 referring again to Fig. 7, in the tilting procedure to avoid the chair back 21, leads to the chair because force is excessive Back rotation suddenly causes human body to topple over injury backward suddenly, and further rotates to provide the chair back 21, for this purpose, this is practical new Type may further be implemented are as follows: pivot joint is formed by a pivotal axis 26 between the link plate 21 and second tilt stand 23, it should Pivotal axis 26 includes a corner post 261, and one first pipe sleeve 262 and one second pipe sleeve 263 are sequentially sheathed on the corner post from left to right 261 outside, and formed between 262 left end of the first pipe sleeve and 261 left end of corner post blind envelope, 263 right end of the second pipe sleeve with Blind envelope is formed between 261 right end of corner post, a screw hole is equipped on the outside of first pipe sleeve 262 towards the convex of 21 bottom surface of link plate Body 28, a screw rod 27 and the screwhole spiro bonding, so that one end operability of the screw rod 27 resists 21 bottom surface of link plate or far from this 21 bottom surface of link plate；21 bottom surface of link plate is located at first pipe sleeve 262 and 263 outside of the second pipe sleeve respectively, and respectively It is formed and is pivotally connected with first pipe sleeve 262 and second pipe sleeve 263；The chair back 12 connects 23 other end of the second tilt stand, and Second tilt stand 23 includes one first connecting piece 231 and one second connecting piece 232, which is hubbed at this The right end ora terminalis of first sleeve 262, second connecting piece 232 are hubbed at 263 outside of the second casing, first connecting piece 231 A moving part 233 is equipped between second connecting piece 232, which is fixedly arranged on 263 outside of the second pipe sleeve, such as schemes Shown, which is from bottom to top formed with welding manner with second pipe sleeve 263 affixed.

It can be to the chair when human body reclining backward when the air pressure rod 24 is in non-actuator state by above-mentioned construction 12 force of back, at this point, second tilt stand 23 is interlocked by the chair back 12 to be influenced and start turning, due to the second inclination branch In frame 23, the connecting piece 233 and second casing 263 are formed and are pivotally connected, so can interlock when second tilt stand 23 rotation Second pipe sleeve 263 rotation.As for first pipe sleeve 262 be then resisted the link plate 21 by the screw rod 27 thus will form solid It is fixed motionless, also due to first pipe sleeve 262 is motionless, second pipe sleeve 263 rotation, cause the corner post 261 can be such as fried dough twist rope one As generate slight torsion, to enable the chair back 12 generate inclination.When human body leaves the seat body 1, due to losing to the chair back 12 force, at this point, the corner post 261 can return back to script state because of elastic-restoring force.In addition, being adjusted in this embodiment The whole screw rod 27, the adjustable inclined complexity of the chair back 12.

It is described above to be merely exemplary for the utility model, and not restrictive, those of ordinary skill in the art Understand, without departing from the spirit and scope defined by the claims, can many modifications may be made, variation or it is equivalent, but It falls within the protection scope of the utility model.

Claims (4)

1. a kind of seat of adjustable chair back tilt angle, it is characterized in that including:

One seat body: the chair back being set to including a chair cushion and one on rear side of the chair cushion；

One tilting unit: link plate, one first tilt stand, one second tilt stand and one for being set to the chair cushion bottom surface including one Air pressure rod, the naked telescopic rod out in air pressure rod top, the top of the telescopic rod and the link plate directly or indirectly form pivot joint, should First tilt stand one end is fixedly arranged on front side of the air pressure rod, and the other end and the link plate form pivot joint and before the telescopic rod Side, and one section of portion of first tilt stand wears one along the hole of the first tilt stand inclined direction setting；This second inclines Tilted supporter and the link plate, which are formed, to be pivotally connected, and a rod segment is each passed through one end and this hole of second tilt stand, this first The other end of tilt stand is located at the front side of the second tilt stand other end；

One chair leg pedestal: it is formed and is linked with the bottom end of the air pressure rod.

2. the seat of adjustable chair back tilt angle according to claim 1, it is characterised in that: the link plate second inclines with this Pivot joint is formed by a pivotal axis between tilted supporter, which includes a corner post, one first pipe sleeve and one second pipe sleeve, the angle Column, the first pipe sleeve and the second pipe sleeve are sequentially sheathed on the corner post outside, and the first pipe sleeve left end and the corner post from left to right Blind envelope is formed between left end, forms blind envelope between the second pipe sleeve right end and the corner post right end, is equipped on the outside of first pipe sleeve One convex body, the convex body have the screw hole towards the link plate bottom surface, a screw rod and the screwhole spiro bonding, so that one end of the screw rod is grasped The link plate bottom surface is resisted as property or far from the link plate bottom surface；The link plate bottom surface be located at respectively first pipe sleeve and this On the outside of two pipe sleeves, and is formed be pivotally connected with first pipe sleeve and second pipe sleeve respectively；It is another that the chair back connects second tilt stand One end, and second tilt stand include one first connecting piece and one second connecting piece, first connecting piece be hubbed at this first The right end ora terminalis of casing, second connecting piece are hubbed at second outside of sleeve, first connecting piece and second connecting piece it Between be equipped with a moving part, which is fixedly arranged on the outside of second pipe sleeve.

3. the seat of adjustable chair back tilt angle according to claim 2, it is characterised in that: be additionally provided with one and be connected by power this The operation button of air pressure rod, the operation button for the operational control telescopic rod retracted position.

4. the seat of adjustable chair back tilt angle according to claim 3, it is characterised in that: the peritreme along this hole is also set There is a washer.