Armrest assembly and seat

Abstract

The utility model discloses an armrest assembly and a seat. The handrail assembly comprises a connecting handle, a handrail and a damping piece. The handrail comprises a first body part, a first protruding part and a first reinforcing rib, the first protruding part protrudes relative to the bottom wall of the first body part, a plurality of limiting grooves are formed in the first protruding part in the circumferential direction, one end of the first reinforcing rib is connected with the periphery of the first protruding part, and the other end of the first reinforcing rib is connected with the inner circumferential wall of the first body part. The damping piece is placed in the first protruding part, and the damping piece comprises a second body part and a second protruding part. The first reinforcing rib is additionally arranged on the periphery of the first protruding part, one end of the first reinforcing rib abuts against the periphery of the first protruding part, and the other end of the first reinforcing rib is connected with the inner circumferential wall of the first body part, so that deformation generated after the first protruding part is extruded by the damping part can be limited, and the deformation degree of the first protruding part is reduced; and the durability of the rotation damping structure in the handrail is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chair manufacturing technical field, concretely relates to a handrail subassembly and seat. BACKGROUND

[0002] Many chairs will set up handrails on both sides of the seat to improve the use experience of users, and in different use scenes, or different users when using the chair, the most comfortable handrail angle is also different, therefore, a rotating mechanism is also usually installed in the handrail subassembly, and the user can rotate the handrail to adjust it to a comfortable angle. In the prior art, in order to simplify the structure and reduce the cost, a rotating damping structure is arranged in the handrail subassembly, but the problem of poor durability exists. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the prior art. To this end, the utility model provides a handrail subassembly, which can improve the durability of the internal rotating damping structure.

[0004] The utility model further provides a seat with the above-mentioned handrail subassembly.

[0005] According to the handrail subassembly of the first aspect embodiment of the utility model, the handrail subassembly comprises a connecting handle, a handrail and a damping piece. The handrail comprises a first body part, a first protruding part and a first reinforcing rib, the first protruding part protrudes relative to the bottom wall of the first body part, the first protruding part is formed with a plurality of limiting grooves in the circumferential direction, one end of the first reinforcing rib is connected to the outer periphery of the first protruding part, and the other end is connected to the inner peripheral wall of the first body part. The damping piece has elasticity, the damping piece is placed in the first protruding part, the damping piece is fixedly connected to the connecting handle, the damping piece comprises a second body part and a second protruding part, the second protruding part protrudes relative to the outer periphery of the second body part, and the second protruding part is arranged in the limiting groove to hinder the rotation of the handrail relative to the connecting handle. When the handrail is driven by external force, the second protruding part can be deformed to slide out of the limiting groove, so that the first protruding part rotates relative to the damping piece, thereby making the handrail rotate relative to the connecting handle.

[0006] The handrail assembly has at least the following beneficial effects: when the damping member rotates in the first protruding part, the damping member exerts extrusion force on the first protruding part due to the existence of the limiting groove, the first protruding part may be deformed after multiple uses, the limiting effect of the limiting groove is reduced, the damping effect is reduced, and the service life of the damping structure is consumed.

[0007] According to some embodiments of the utility model, the second protruding part is symmetrically provided with two second body parts, and a plurality of limiting grooves are connected head to tail to form the first protruding part, so that the damping member can rotate one circle in the first protruding part.

[0008] According to some embodiments of the utility model, recessed parts are formed between two adjacent limiting grooves, the recessed parts are recessed inward relative to the outer circumferential surface of the first protruding part, and one end of the first reinforcing rib is connected to the recessed part.

[0009] According to some embodiments of the utility model, the handrail assembly further comprises a second reinforcing rib, the first reinforcing rib extends in a first direction, two ends of the second reinforcing rib are connected to the inner circumferential wall of the first body part and intersect the first reinforcing rib, the second reinforcing rib extends in a second direction, and any two of the first direction, the second direction and the vertical direction are perpendicular to each other.

[0010] According to some embodiments of the utility model, a cavity is formed between the second protruding part and the second body part, and the volume of the cavity decreases when the second protruding part is deformed.

[0011] According to some embodiments of the utility model, the second body part comprises a first part and a second part connected to each other, the first part is connected to the second protruding part, the second part protrudes relative to the outer circumferential surface of the first part, the diameter of the circumscribed circle of the second part is smaller than the diameter of the circumscribed circle of the second protruding part, and the second part is used for abutting against the handrail.

[0012] According to some embodiments of the utility model, the handrail comprises a first shell and a second shell, the first body part, the first protruding part and the first reinforcing rib are arranged in the second shell, and the second shell is slidably arranged in the first shell.

[0013] According to some embodiments of the utility model, the second shell piece further includes a third protruding part, along the sliding direction of the second shell piece, the third protruding part is arranged at both ends of the first body part, the third protruding part is used for abutting with the inner peripheral wall of the first shell piece, and the third protruding part has elasticity.

[0014] According to some embodiments of the utility model, the material of the damping piece is polyoxymethylene.

[0015] According to the seat of the second aspect embodiment of the utility model, the armrest assembly of any one of the first aspect embodiment is included.

[0016] According to the seat of the utility model embodiment, at least has following beneficial effect: when the damping piece rotates in the first protruding part, because there is the limiting slot, therefore the damping piece will to the first protruding part exert extrusion pressure, when using repeatedly, the first protruding part just can produce deformation, thereby the limiting effect of limiting slot drops, and damping effect also reduces, thereby consumes the service life of damping structure.But the armrest assembly of the utility model embodiment, by increasing the first reinforcing rib in the outer periphery of the first protruding part, and makes the one end of the first reinforcing rib abut the outer periphery of the first protruding part, and the other end is connected with the inner peripheral wall of the first body part, thereby can limit the deformation of the first protruding part after being extruded by the damping piece, reduces its deformation degree, effectively promotes the durability of the rotating damping structure in the armrest.The seat using the armrest assembly can promote the rotating experience of the armrest, and promote the service life of the armrest and reduce the replacement frequency.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in combination with the drawings and embodiments, wherein:

[0019] Figure 1 It is the first perspective drawing of the armrest assembly in an embodiment of the utility model;

[0020] Figure 2 It is the explosion drawing of the armrest assembly in an embodiment of the utility model;

[0021] Figure 3 It is the internal structure schematic diagram of the armrest in an embodiment of the utility model;

[0022] Figure 4 It is the structure schematic diagram of the damping piece of the armrest assembly in an embodiment of the utility model;

[0023] Figure 5A perspective view of the second shell piece of the handrail assembly in an embodiment of the present application;

[0024] Figure 6 A second perspective view of the handrail assembly in an embodiment of the present application.

[0025] The drawings show: a handrail assembly 100, a connecting handle 101, a handrail 102, a first shell piece 201, a second shell piece 202, a damping piece 203, a third shell piece 204, a buffer piece 205, a first body part 206, a first protruding part 207, a first reinforcing rib 301, a second reinforcing rib 302, a second body part 401, a first part 402, a second part 403, a second protruding part 404, a cavity 405, a limiting groove 406, a recessed part 407, a third protruding part 501. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0028] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0029] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical solution.

[0030] In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] Reference Figures 1 to 3 According to the handrail assembly 100 of the first aspect embodiment of the utility model, the connecting handle 101, the handrail 102 and the damping piece 203 are included. The handrail 102 includes the first body part 206, the first convex part 207 and the first reinforcing rib 301, the first convex part 207 is protruded relative to the bottom wall of the first body part 206, a plurality of limiting grooves 406 are formed along the circumference of the first convex part 207, one end of the first reinforcing rib 301 is connected to the outer circumference of the first convex part 207, and the other end is connected to the inner circumferential wall of the first body part 206. The damping piece 203 has elasticity, the damping piece 203 is placed in the first convex part 207, the damping piece 203 is fixedly connected to the connecting handle 101, the damping piece 203 includes the second body part 401 and the second convex part 404, the second convex part 404 is protruded relative to the outer circumference of the second body part 401, and the second convex part 404 is arranged in the limiting groove 406 to hinder the rotation of the handrail 102 relative to the connecting handle 101. When the handrail 102 is driven by external force, the second convex part 404 can be deformed to slide out of the limiting groove 406, so that the first convex part 207 rotates relative to the damping piece 203, thereby making the handrail 102 rotate relative to the connecting handle 101. When the damping piece 203 rotates in the first convex part 207, the damping piece 203 will exert a pressing force on the first convex part 207 due to the existence of the limiting groove 406. After repeated use, the first convex part 207 may be deformed, thereby reducing the limiting effect of the limiting groove 406 and reducing the damping effect, thereby consuming the service life of the damping structure. The handrail assembly 100 of the utility model embodiment increases the first reinforcing rib 301 on the outer circumference of the first convex part 207, and makes one end of the first reinforcing rib 301 abut against the outer circumference of the first convex part 207 and the other end connected to the inner circumferential wall of the first body part 206, thereby limiting the deformation of the first convex part 207 after being pressed by the damping piece 203, reducing the degree of deformation, and effectively improving the durability of the rotating damping structure inside the handrail 102. It should be noted that, Figure 6 It is a schematic view of the state after the handrail 102 rotates relative to the connecting handle 101.

[0032] Reference Figure 4In some embodiments of the utility model, two second convex parts 404 are symmetrically arranged relative to the second body part 401, a plurality of limiting grooves 406 are connected head to tail to form a first convex part 207, so that the damping part 203 can rotate one circle relative to the first convex part 207. Such design can make the damping part 203 rotate arbitrarily in the first convex part 207, and the two second convex parts 404 can be clamped in the corresponding limiting groove 406, so that the angle of the handrail 102 relative to the connecting handle 101 is fixed, and one circle rotation of the handrail 102 relative to the connecting handle 101 can be realized, the adjustability is higher, and more angle requirements can be met. Further, refer to Figure 4 In some embodiments of the utility model, the limiting groove 406 is designed with eight circumferential central symmetries, that is, the rotation angle of the handrail 102 each time and the second convex part 404 clamped in the limiting groove 406 is 45 degrees. Such design can make the rotation angle of the handrail 102 meet the commonly used angles of 45 degrees, 90 degrees, etc., improve the use experience, and in some embodiments, the number of limiting grooves 406 can also be adjusted according to requirements.

[0033] Refer to Figure 3 And Figure 4 In some embodiments of the utility model, a recessed part 407 is formed between the two adjacent limiting grooves 406, the recessed part 407 is recessed inward relative to the outer circumferential surface of the first convex part 207, and one end of the first reinforcing rib 301 is connected to the recessed part 407. The deformation of the first convex part 207 depends on the stress degree, and the abutting force of the second convex part 404 on the first convex part 207 is the largest when the damping part 203 rotates from one limiting groove 406 to the next limiting groove 406. At this time, the second convex part 404 abuts the part between the two limiting grooves 406, and the outer circumferential surface of the corresponding first convex part 207 is the recessed part 407. Therefore, arranging the connecting point of the first reinforcing rib 301 and the first convex part 207 at the recessed part 407 can resist the extrusion force of the damping part 203 to the greatest extent, thereby improving the deformation of the first convex part 207 and prolonging its service life.

[0034] Refer to Figure 3 And Figure 5In some embodiments of the utility model, handrail assembly 100 further includes second reinforcing rib 302, first reinforcing rib 301 extends along first direction, two ends of second reinforcing rib 302 are connected with the inner circumferential wall of first body part 206 and intersect with first reinforcing rib 301, second reinforcing rib 302 extends along second direction, any two of first direction, second direction and vertical direction are perpendicular to each other. When bearing external load, staggered first reinforcing rib 301 and second reinforcing rib 302 can support the structure from multiple directions, improve overall rigidity to resist deformation, and staggered reinforcing rib can change the stress flow path inside the structure, optimize stress distribution. Further, reference Figure 3 In some embodiments of the utility model, first reinforcing rib 301 is spaced apart along second direction, second reinforcing rib 302 is spaced apart along first direction, so that the reinforcing rib inside second shell piece 202 is distributed in a grid shape, which improves the structural strength of second shell piece 202 while saving manufacturing cost.

[0035] Reference Figure 4 In some embodiments of the utility model, cavity 405 is formed between second protruding part 404 and second body part 401, when second protruding part 404 deforms, the volume of cavity 405 decreases. The setting of cavity 405 can provide space for the deformation of second protruding part 404, so that second protruding part 404 can better deform and exit limiting groove 406 when subjected to external force, at this time the volume of cavity 405 decreases and second protruding part 404 can accumulate more elastic potential energy, when rotating to the next limiting groove 406, the elastic potential energy is released to make second protruding part 404 rebound to abut against the next limiting groove 406.

[0036] Reference Figure 4 In some embodiments of the utility model, second body part 401 includes first part 402 and second part 403 connected with each other, first part 402 is connected with second protruding part 404, second part 403 protrudes outward relative to first part 402, the diameter of the circumscribed circle of second part 403 is smaller than the diameter of the circumscribed circle of second protruding part 404, and second part 403 is used for abutting against handrail 102. The setting of second part 403 can make damping piece 203 better press on second shell piece 202, increase the contact area and improve the stability of the structure after installation, and the diameter of the circumscribed circle of second part 403 is set to be smaller than the diameter of the circumscribed circle of second protruding part 404 to avoid the influence of second part 403 on damping process during the rotation of damping piece 203 relative to second shell piece 202. Reference Figure 4The circumscribed circle refers to the circle whose diameter is the line connecting the two vertices of the second protrusion 404 furthest from the center. Similarly, the circumscribed circle of the second part 403 is the circle whose diameter is determined by the line connecting the two vertices of the second part 403 furthest from the center. The circumscribed circle determines whether the second part 403 will interfere with the damping of the second protrusion 404. Furthermore, refer to... Figure 4 In some embodiments of this utility model, a through hole is provided in the center of the second part 403, which can further reduce manufacturing costs, and the through hole can also be used for positioning during the manufacturing process to improve processing quality.

[0037] refer to Figures 2 to 4 In some embodiments of this utility model, the armrest 102 includes a first shell 201 and a second shell 202. A first body portion 206, a first protrusion 207, and a first reinforcing rib 301 are disposed in the second shell 202, and the second shell 202 is slidably disposed within the first shell 201. This allows the armrest 102 to not only rotate but also slide back and forth, enabling the armrest 102 to perform more functions and allowing it to move to a suitable position along the sliding direction, thus improving the user experience. Specifically, refer to... Figure 2 and Figure 3 In some embodiments of this utility model, the specific principle for achieving sliding is as follows: the damping element 203, the second shell 202, and the first shell 201 are stacked from top to bottom on the connecting handle 101, and are threadedly connected by a screw passing through the damping element 203. The first shell 201 and the second shell 202 are in clearance fit, and as shown... Figure 2 and Figure 3 As shown, a through hole is provided on the first housing 201, and a space is provided inside the first housing 201 for the second housing 202 to slide. At this time, the first housing 201 can be pushed to make it slide. The second housing 202 and the damping member 203 are fixedly installed on the connecting handle 101 by screws, so as to achieve the technical effect of the first housing 201 sliding relative to the second housing 202.

[0038] refer to Figure 2 In some embodiments of this utility model, the armrest 102 further includes a third shell 204, which is fixedly installed above the first shell 201 and wraps around the second shell 202 and the damping member 203, thereby improving the aesthetics of the armrest assembly 100. Furthermore, a buffer member 205 is provided above the third shell 204 to provide a better grip experience when the hand is placed on the armrest 102. Specifically, the buffer member 205 can be an elastic material such as sponge or silicone, and leather can be attached to the side of the buffer member 205 facing away from the third shell 204 to further improve the feel when placed on it.

[0039] refer to Figure 3 and Figure 5In some embodiments of the utility model, second shell piece 202 still includes third protruding part 501, along the sliding direction of second shell piece 202, third protruding part 501 is arranged at both ends of first body part 206, third protruding part 501 is used to abut with the inner peripheral wall of first shell piece 201, third protruding part 501 has elasticity.Set third protruding part 501 can make first shell piece 201 and second shell piece 202 relative sliding and contact, there can be certain buffer between both, the elasticity of third protruding part 501 is used to buffer and can improve the use experience of sliding process and the service life of first shell piece 201 and second shell piece 202.Specifically, reference Figure 5 In some embodiments of the utility model, third protruding part 501 and the main body of second shell piece 202 are integrally formed, are set into curved sheet structure, and are made of plastic parts, which can provide a certain degree of buffer, and in some embodiments, spring or other elastic parts can also be selected to be connected with the body of second shell piece 202 to realize the buffer function.

[0040] In some embodiments of the utility model, the material of damping part 203 is polyoxymethylene. Polyoxymethylene has good toughness and is not easy to break, has long service life, and is resistant to wear, so that the loss of damping part 203 during use is low. The damping part 203 is manufactured into a thin structure and provided with a cavity 405, which can also have good elastic deformation capacity. In some embodiments, polypropylene, polyethylene or other materials can also be selected to manufacture the damping part 203.

[0041] According to the seat of the second aspect of the utility model, the armrest assembly 100 of any one of the first aspect is included. When the damping part 203 rotates in the first protruding part 207, because the limiting groove 406 exists, the damping part 203 will exert a pressing force on the first protruding part 207. After repeated use, the first protruding part 207 may be deformed, thereby causing the limiting effect of the limiting groove 406 to decrease, and the damping effect to decrease, thereby consuming the service life of the damping structure. The armrest assembly 100 of the embodiment of the utility model adds the first reinforcing rib 301 to the outer periphery of the first protruding part 207, and makes one end of the first reinforcing rib 301 abut the outer periphery of the first protruding part 207, and the other end connect the inner peripheral wall of the first body part 206, thereby limiting the deformation of the first protruding part 207 after being pressed by the damping part 203, reducing the degree of deformation, and effectively improving the durability of the rotating damping structure inside the armrest 102. The seat using the armrest assembly 100 can improve the rotating experience of the armrest 102, and improve the service life of the armrest 102 to reduce the replacement frequency.

[0042] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of the ordinary skill in the art who possesses under the premise of not departing from the utility model's tenet. Besides, the embodiment and the feature in the embodiment of the utility model can be combined mutually under the condition of not conflicting.

Claims

1. An armrest assembly, characterized in that, include; Connecting handle; The handrail includes a first body portion, a first protrusion portion, and a first reinforcing rib. The first protrusion portion protrudes relative to the bottom wall of the first body portion. The first protrusion portion has a plurality of limiting grooves formed in the circumferential direction. One end of the first reinforcing rib is connected to the outer periphery of the first protrusion portion, and the other end is connected to the inner peripheral wall of the first body portion. A damping element, which is elastic, is placed inside the first protrusion and is fixedly connected to the connecting handle. The damping element includes a second body portion and a second protrusion portion. The second protrusion portion protrudes from the outer periphery of the second body portion and is disposed in the limiting groove to prevent the handrail from rotating relative to the connecting handle. When the handrail is driven by an external force, the second protrusion portion can deform to slide out of the limiting groove, causing the first protrusion portion to rotate relative to the damping element, thereby causing the handrail to rotate relative to the connecting handle.

2. The armrest assembly according to claim 1, characterized in that, Two second protrusions are symmetrically arranged relative to the second body portion, and multiple limiting grooves are connected end to end to form the first protrusion, so that the damping member can rotate one revolution relative to the first protrusion.

3. The handrail assembly according to claim 2, characterized in that, A recess is formed between two adjacent limiting grooves. The recess is recessed inward relative to the outer peripheral surface of the first protrusion. One end of the first reinforcing rib is connected to the recess.

4. The handrail assembly according to claim 1, characterized in that, The handrail assembly further includes a second reinforcing rib, the first reinforcing rib extends along a first direction, the two ends of the second reinforcing rib are connected to the inner peripheral wall of the first body and intersect with the first reinforcing rib, the second reinforcing rib extends along a second direction, and any two of the first direction, the second direction and the vertical direction are perpendicular to each other.

5. The armrest assembly according to claim 1, characterized in that, A cavity is formed between the second protrusion and the second body portion. When the second protrusion deforms, the volume of the cavity decreases.

6. The handrail assembly according to claim 1, characterized in that, The second body portion includes a first portion and a second portion connected to each other. The first portion is connected to the second protrusion. The second portion protrudes relative to the outer periphery of the first portion. The diameter of the outer tangent circle of the second portion is smaller than the diameter of the outer tangent circle of the second protrusion. The second portion is used to abut against the handrail.

7. The handrail assembly according to claim 1, characterized in that, The handrail includes a first shell and a second shell. The first body portion, the first protrusion portion, and the first reinforcing rib are disposed in the second shell, and the second shell is slidably disposed within the first shell.

8. The armrest assembly according to claim 7, characterized in that, The second housing also includes a third protrusion. Along the sliding direction of the second housing, the third protrusion is disposed at both ends of the first body portion. The third protrusion is used to abut against the inner peripheral wall of the first housing and is elastic.

9. The armrest assembly according to claim 1, characterized in that, The damping component is made of polyoxymethylene.

10. A seat, characterized in that, Includes the armrest assembly as described in any one of claims 1-9.

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