CN208725229U - A kind of elastic chair back of adjustable inclination - Google Patents

Abstract

The utility model discloses a kind of elastic chair backs of adjustable inclination, it include the chairback brace and chair back component for being connected to seat, the upper end of the chairback brace is provided with resilient support assemblies, the resilient support assemblies are connected to the lower end center of chair back component, the resilient support assemblies include that the mounting base of chairback brace upper end is arranged in, yawing axis and elastic cushion, the mounting base is provided with opening towards the inner cavity of chair back component, the yawing axis setting is in the lumen, the elastic cushion is sleeved on yawing axis, the outer wall of the elastic cushion is abutted with inner cavity, the chair back component is fixedly connected on the end of yawing axis, the chair back component drives yawing axis reclining and oppresses elastic cushion deformation.The utility model can adapt to the various postures of user with comprehensive reclining, bring more comfortable impression for user.

Description

A kind of elastic chair back of adjustable inclination

Technical field

The utility model relates to the technical field of the seat, the elastic chair back of specifically a kind of adjustable inclination.

Background technique

Currently, seat is widely used in the various aspects of people's life, by the difference of its field of employment, seat includes Office seating, automotive seat, meeting seat etc., it is too numerous to enumerate.The chair back is one of the important component being equipped on front seat, the chair back Back is provided against raising comfort for people.The chair back is preferably designed to the function of movable adjustment, this is because needing root It is temporarily adjusted according to the difference of different users individual's physique and habit, even same user, due to use process In postural change or backrest fell the change of angle, there is also relative to user back position adjust position and angle it It needs.However in the prior art, the chair back of most of seats is fixed, therefore comfort is poor, sits this for a long time Kind chair, such as listen report, see performance, it can all make one not feeling well.

Summary of the invention

For overcome the deficiencies in the prior art, the utility model provides a kind of elastic chair back of adjustable inclination, can be with multi-angle Reclining adapts to the various postures of user, brings more comfortable impression for user.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of elastic chair back of adjustable inclination includes the chairback brace and chair back component for being connected to seat, the chair back The upper end of bracket is provided with resilient support assemblies, and the resilient support assemblies are connected to the lower end center of chair back component, the bullet Property support component includes the mounting base that chairback brace upper end is arranged in, yawing axis and elastic cushion, and the mounting base is provided with Opening is towards the inner cavity of chair back component, and in the lumen, the elastic cushion is sleeved on yawing axis, the bullet for the yawing axis setting Property pad outer wall abutted with inner cavity, the chair back component is fixedly connected on the end of yawing axis, and the chair back component drives deflection Axis reclining and oppress elastic cushion deformation.

As an improvement of the above technical solution, stripper loop is provided in the middle part of the yawing axis, the elastic cushion is provided with Two and split the two sides of the stripper loop.

As a further improvement of the above technical scheme, the surface of the yawing axis is provided with locating slot, the elastic cushion It is provided with the positioning strip to match with the locating slot.

It is further improved, the side of the mounting base towards chair back component is fixedly connected with pressure ring with locking elastic pad.

It is further improved, the end of the yawing axis is provided with multiple circumferentially uniformly distributed fixture blocks, the chair back component setting There is the card slot to match with the fixture block.

It is further improved, the yawing axis is provided with the inner hole of perforation, end cap, the end are provided on the chair back component Lid is provided with threaded hole corresponding with the inner hole, and a bolt passes through the inner hole and is threadedly coupled with end cap.

It is further improved, the mounting base is provided with the through-hole for being through to inner cavity for bolt installation, the mounting base A trim is also equipped with to cover the through-hole.

It is further improved, is further sleeved with dust cover outside the mounting base, the chair back component, which is provided with, covers on dust cover External skirt, the skirt are flexible glue part.

The beneficial effects of the utility model are: resilient support assemblies are connected to the lower end center of chair back component, chair back component Comfortable experience can be brought for user, chair back component is fixedly connected with yawing axis, when user back to various direction reclinings When leaning against stretching, extension waist on chair back component or changing posture, chair back component and yawing axis is driven integrally to deflect, thus to suit On yawing axis elastic cushion generate compressing, elastic cushion deformed due to being limited by inner cavity generation act on chair back component and partially The reaction force of shaft, as the support to user；After chair back component is left at the back of user, elastic cushion then pushes chair Back component and yawing axis return to normal condition, reliability and durability.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is the cross-sectional view of the utility model；

Fig. 2 is the partial enlarged view of Fig. 1；

Fig. 3, Fig. 4 are the decomposition diagrams of the utility model.

Specific embodiment

Referring to Fig.1~Fig. 4, a kind of elastic chair back of adjustable inclination include the chairback brace 1 and the chair back for being connected to seat Component 2, the upper end of the chairback brace 1 are provided with resilient support assemblies 3, and the resilient support assemblies 3 are connected to chair back component 2 Lower end center, the resilient support assemblies 3 include the mounting base 31 that 1 upper end of chairback brace is set, yawing axis 32 and Elastic cushion 33, chairback brace 1 and mounting base 31 are integrated the metalwork of casting and forming to guarantee that rigidity, the mounting base 31 are arranged There is opening towards the inner cavity of chair back component 2 311, the yawing axis 32 is arranged in inner cavity 311, and the elastic cushion 33 is sleeved on partially In shaft 32, the outer wall of the elastic cushion 33 is abutted with inner cavity 311, and the chair back component 2 is fixedly connected on the end of yawing axis 32 Portion, the chair back component 2 drive 32 reclining of yawing axis and oppress the deformation of elastic cushion 33.Preferably, the middle part of the yawing axis 32 It is provided with stripper loop 321, the elastic cushion 33 is provided with two and splits the two sides of the stripper loop 321.In order to accurately limit Determine the position of elastic cushion 33, it is preferred that the surface of the yawing axis 32 is provided with locating slot, and the elastic cushion 33 is provided with and institute The positioning strip that locating slot matches is stated, positioning strip is caught in locating slot；Meanwhile settable second locating slot on elastic cushion 33, Second positioning strip is set in inner cavity 311 to cooperate positioning.In the present embodiment, it is preferred that the mounting base 31 is towards chair back group The side of part 2 has been fixed by screws pressure ring 34 with locking elastic pad 33, and compressing elastic cushion 33 generates less pressure ring 34 in advance Perhaps it deforms and precompression is provided, chair back component 2 abuts pressure ring 34, guarantees that chair back component 2 keeps normal condition.Using above-mentioned knot Structure, resilient support assemblies 3 are connected to the lower end center of chair back component 2, chair back component 2 then can omnidirection reclining, be convenient for user Stretch upper limb.When user back lean against on chair back component 2 stretch waist or change posture when, drive chair back component 2 and partially 32 one deflection of shaft, to generate compressing to two elastic cushions 33 on yawing axis 32 are sleeved on, elastic cushion 33 is due to by interior The limitation of chamber 311 and deform, generate and act on the reaction force of chair back component 2 and yawing axis 32, as the support to user, The power that user applies chair back component 2 is bigger, and the deformation of elastic cushion 33 is bigger and to generate reaction force also bigger, realizes adaptive It answers；After chair back component 2 is left at the back of user, elastic cushion 33 then pushes chair back component 2 and yawing axis 33 to return to normal shape State, it is reliability and durability.

For the ease of assembling, in the present embodiment, it is preferred that it is uniformly distributed that the end of the yawing axis 32 is provided with multiple circumferential directions Fixture block, the chair back component 2 is provided with the card slot to match with the fixture block, is positioned, is prevented using fixture block and card slot cooperation Chair back component 2 is rotated around the axis of yawing axis 32.Preferably, the yawing axis 32 is provided with the inner hole of perforation, the chair back group End cap 21 is provided on part 2, the end cap 21 is provided with threaded hole corresponding with the inner hole, and a bolt passes through the inner hole and end cap 21 are threadedly coupled.Preferably, the mounting base 31 is provided with the through-hole for being through to inner cavity 311 for bolt installation, the peace Dress seat 31 is also equipped with a trim 34 to cover the through-hole.When assembling, the fixture block of yawing axis 32 is first caught in chair back component 2 Card slot, then bolt passes through the inner hole and is threadedly coupled with end cap 21, finally loads onto trim 34.

In the present embodiment, it is preferred that dust cover 35 is further sleeved with outside the mounting base 31 to prevent in dust entrance Chamber 311, it is contemplated that chair back component 2 can deflect, and the setting of chair back component 2 covers on the skirt 22 outside dust cover 35, and skirt 22 uses Flexible glue production can not only be bonded dust cover 35, but also not influence the deflection of chair back component 2, using the deformation behavior of flexible glue, in chair back group It keeps skirt 22 to be bonded dust cover 35 when part 2 deflects, gap will not be generated.

The above, the only better embodiment of the utility model, but the utility model is not limited to above-mentioned reality Example is applied, as long as its technical effect for reaching the utility model with any same or similar means, should all fall into the utility model Within protection scope.

Claims (8)

1. a kind of elastic chair back of adjustable inclination includes the chairback brace (1) and chair back component (2) for being connected to seat, special Sign is: the upper end of the chairback brace (1) is provided with resilient support assemblies (3), and the resilient support assemblies (3) are connected to chair The lower end center of component (2) is carried on the back, the resilient support assemblies (3) include mounting base of the setting in chairback brace (1) upper end (31), yawing axis (32) and elastic cushion (33), the mounting base (31) are provided with inner cavity of the opening towards chair back component (2) (311), the yawing axis (32) is arranged in inner cavity (311), and the elastic cushion (33) is sleeved on yawing axis (32), the bullet The outer wall of property pad (33) is abutted with inner cavity (311), and the chair back component (2) is fixedly connected on the end of yawing axis (32), described Chair back component (2) drives yawing axis (32) reclining and oppresses elastic cushion (33) deformation.

2. a kind of elastic chair back of adjustable inclination according to claim 1, it is characterised in that: the middle part of the yawing axis (32) It is provided with stripper loop (321), the elastic cushion (33) is provided with two and splits the two sides of the stripper loop (321).

3. a kind of elastic chair back of adjustable inclination according to claim 2, it is characterised in that: the surface of the yawing axis (32) It is provided with locating slot, the elastic cushion (33) is provided with the positioning strip to match with the locating slot.

4. a kind of elastic chair back of adjustable inclination according to claim 3, it is characterised in that: the mounting base (31) is towards chair The side of back component (2) is fixedly connected with pressure ring (34) with locking elastic pad (33).

5. a kind of elastic chair back of adjustable inclination according to claim 4, it is characterised in that: the end of the yawing axis (32) Multiple circumferentially uniformly distributed fixture blocks are provided with, the chair back component (2) is provided with the card slot to match with the fixture block.

6. a kind of elastic chair back of adjustable inclination according to claim 5, it is characterised in that: the yawing axis (32) is provided with The inner hole of perforation is provided with end cap (21) on the chair back component (2), and the end cap (21) is provided with spiral shell corresponding with the inner hole Pit, a bolt pass through the inner hole and are threadedly coupled with end cap (21).

7. a kind of elastic chair back of adjustable inclination according to claim 6, it is characterised in that: the mounting base (31) is provided with The through-hole of inner cavity (311) is through to for bolt installation, the mounting base (31) is also equipped with a trim (36) to cover The through-hole.

8. a kind of elastic chair back of adjustable inclination according to claim 1, it is characterised in that: outside the mounting base (31) also It is set with dust cover (35), the chair back component (2), which is provided with, covers on the external skirt (22) of dust cover (35), the skirt It (22) is flexible glue part.