TWM509597U - Back cushion support structure - Google Patents

Description

Back cushion support structure

The present invention discloses a back pad support structure, and more particularly to a back pad support structure that can be disposed on an office chair.

Referring to the backrest structure of the office chair of the Chinese Patent No. M270739, which comprises a seat portion, a chair back, a connecting frame, an adjusting portion and two elastic members, the seat portion is used for providing a ride, the seat back The first frame back and the second seat back are connected to the bottom of the seat portion, and the other end is bent and extended in the direction of the back of the chair. The adjusting portion includes a skeleton connecting portion and a Attaching the slide rail and an adjusting hole, the skeleton connecting portion is disposed at a position corresponding to the adjusting portion corresponding to the skeleton, and connecting the connecting skeleton, wherein the attaching slide rail is disposed on a side of the adjusting portion corresponding to the back of the chair, and is connected The elastic member is disposed on a side of the adjusting portion corresponding to the back of the chair, and the first and second seat backs are adjusted in relative spacing on the attached slide, and the two elastic members respectively correspond to the first seat a molding body provided on the back of the second seat back, each elastic member having at least one connecting portion, an elastic body, a plurality of reinforcing rib members and a connecting block, wherein the connecting portion is respectively connected to the two elastic members The back of the chair a second back, the elastic body is located between the connecting portion and the connecting block, and the elastic member is elastically bent at the back of the chair and the adjusting portion, the connecting block is axially positioned by the elastic member The pivot is located on the attached slide.

It can be understood from the drawings of the above patent that the elastic member is only yawed from left to right and up and down, and thus it can be seen that the back of the chair cannot fit the back of the user and provide support, and the burden on the waist and the back cannot be reduced.

The technical problem to be solved by the present invention is that the deflection of the elastic element is limited so that the back of the chair does not fit the back of the user and provides support.

In view of the disadvantages of the prior art, a back pad support structure includes: a support member is provided with at least one first cavity; at least one elastic group includes an elastic body, and the elastic body is provided with a first joint and a second joint a first joint portion forming a surface having at least two curvatures and disposed on the first pocket, and a surface of the first joint portion is fitted to an inner edge of the first pocket, the second joint portion being formed a surface of the at least two curvatures; the at least one backing pad set includes a back shell, the back shell is provided with a second receiving groove, the second receiving groove is connected to the second joint portion, and the surface of the second joint portion is attached to the surface The inner edge of the second pocket.

The shape of the first joint portion and the second joint portion is designed, and the first joint portion is disposed on the first pocket, and the second joint portion is disposed in the second pocket, so that the elastic body can be left and right In addition to the yaw and the yaw of the upper and lower sides, the yaw is twisted so that the backing pad fits the back of the user, reducing the burden on the waist and the back.

Other objects, advantages, and novel features of the present invention will become apparent from the Detailed Description and the accompanying drawings.

The technology, means and effects of the present invention are described in detail with reference to the accompanying drawings, which are for illustrative purposes only and are not limited by the structure.

Refer to Figures 1 to 4. The back pad support structure of the present invention can be disposed on an office chair A. The office chair A includes a chassis A1, a column A2 and a pad A3. The column A2 is connected to the chassis A1, and the seat pad A3 is connected to the column. A2, the seat cushion A3 can be used for the user to ride. The back support structure of the present invention is disposed at one end of the pillar A2 away from the chassis A1 and includes a support member 10, at least one elastic group 20 and at least one back cushion group 30. The support member 10 is connected to the one end of the support member 10, and the at least one elastic member 20 is connected to the support member 10. The at least one elastic member 20 is connected to the end of the support member 10. The at least one backing pad set 30 provides a user to lean against.

The support member 10 is provided with at least one first receiving slot 11 . The supporting member 10 is provided with a positioning hole 12 in the at least one first receiving slot 11 . In this embodiment, the supporting member 10 is provided with two first receiving slots 11 . The two first receiving slots 11 are respectively disposed at opposite ends of the supporting member 10. The supporting member 10 is respectively provided with a positioning hole 12 in the two first receiving slots 11.

The at least one elastic group 20 includes an elastic body 21, a first connecting member 22, a second connecting member 23, a nut 24, and a cover member 25. The first connecting member 22 and the second connecting member 23 respectively The elastic body 21 is disposed at the opposite ends of the elastic body 21, and the elastic body 21 is connected to the at least one first receiving groove 11. The first connecting member 22 is disposed through the positioning hole 12 of the supporting member 10. The nut 24 of the elastic group 20 is screwed. The first connecting member 22 is disposed on the first connecting member 22, so that the elastic member 21 is fixed to the supporting member 10. The cover member 25 fits the positioning hole 12 of the supporting member 10 and covers the nut 24 of the elastic group 20 and the first connecting member. In the embodiment, the back support structure of the present invention comprises two elastic groups 20, and the two elastic groups 20 are respectively connected to opposite ends of the support member 10. The first connecting member 22 and the second connecting member 23 are embedded members, and the elastic body 21 is solid rubber and is injection molded between the insert members, so that the opposite ends of the elastic body 21 are respectively fixed to the first portion. The connecting member 22 and the second connecting member 23.

The elastic body 21 includes a first joint portion 211, a second joint portion 212 and a body portion 213. The body portion 213 is disposed between the first joint portion 211 and the second joint portion 212. The first joint The second connecting portion 211 is connected to the first connecting member 22 and is disposed on the first receiving slot 11 , and the surface of the first connecting portion 211 is attached to the inner edge of the first receiving slot 11 , and the second connecting portion 212 is connected to the second connecting portion 212 . The connecting portion 23 is adjacent to an end surface of the first receiving portion 211 adjacent to an end surface of the first receiving portion 211 adjacent to the end surface of the first receiving slot 11.

The at least one back pad set 30 includes a back cover 31. The back cover 31 is provided with a second receiving slot 311. The second receiving slot 311 is connected to the second connecting portion 212, and the surface of the second connecting portion 212 is adhered. A locating slot 312 is defined in the inner edge of the second sump 311. The locating slot 312 is connected to the second splicing 311. The body 213 is adjacent to the second splicing. One end of the portion 212 abuts against the bottom of the groove of the positioning groove 213. The back cover 30 defines a positioning hole 313 in the second receiving groove 311. The second connecting member 23 passes through the positioning hole 313 of the back shell 30.

The at least one backing pad set 30 includes a cushion 32 and a nut 33. The cushion 32 connects the back shell 31 away from one end of the elastic body 21, and the nut 33 of the backing pad set 30 is screwed to the second The connector member 23 is configured to fix the at least one backing pad set 30 to the elastic group 20. In this embodiment, the backing pad supporting structure of the present invention includes two backing pad sets 30, and the two backing pad sets 30 respectively connect the two elastic layers. In the group 20, the two back shells 31 and the two cushions 32 are arcuate.

Reference is made to Figures 2, 3, 5 and 9. The positioning hole 12 of the support member 10 is a circular hole and forms a center line L at the center of the positioning hole 12 and extends along the axial direction. A virtual surface is perpendicular to the center line L. The first joint portion 211 and the first portion The two joint portions 212 are respectively projected onto the virtual surface and are respectively contoured. The contours of the first joint portion 211 and the second joint portion 212 have at least two contours of curvature, and the contour of the first joint portion 211 can be known. The line corresponds to the surface of the first joint portion 211, and the contour of the second joint portion 212 corresponds to the surface of the second joint portion 212, and one of the curvatures of the first joint portion 211 and the second joint portion 212 The curvature of the contour line is 0, and the corresponding surface is a plane. When the curvature of the contour of one of the first joint portion 211 and the second joint portion 212 is greater than 0, the corresponding surface is a curved surface, and the first combination The surface of the first joint portion 211 and the surface of one of the second joint portions 212 are respectively formed. One of several types has a curvature of 0 . The first joint portion 211 is fixedly disposed on the first receiving groove 11 , and the second joint portion 212 is fixedly disposed on the second receiving portion 212 by the shape of the first joint portion 211 and the second joint portion 212 . The groove 311 allows the elastic body 21 to be twisted in a twisted manner.

Refer to Figures 5 and 6. The positioning hole 313 of the back shell 31 is a circular hole. The center line L extends through the elastic body 21 and is connected to the center of the positioning hole 313 of the back shell 31. When the user rides on the office chair A and leans back, the back pad The group 30 moves in the direction of the arrow of FIG. 6. The center of the positioning hole 313 of the two back shells 31 is separated from the center line L. The elastic body 21 is solid rubber and is yawed up and down by elastic deformation of the solid rubber. The two cushions 32 can conform to the back of the user, reducing the burden on the back and the waist.

Reference is made to FIG. 7 and FIG. 8 at the same time. The portions of the two cushions 32 adjacent to each other are flat, and the portions of the two cushions 32 are ridged away from each other. The elastic body 21 has an axis, and the axis of the elastic body 21 is collinear with the center line L. The first joint portion 211 , the second joint portion 212 , and the main body portion 213 , the first portion 2131 and the second side 2132 , the first side 2131 and the second side 2132 The first side 2131 extends along the axis to have a width, the second side 2132 extends along the axis to have a width, and the second side 2132 has a width greater than the first side. In the present embodiment, the first side 2131 of one of the two elastic bodies 21 faces the first side 2131 of the other elastic body 21. By the width of the first side 2131 and the second side 2132, the shape of the back shell 31 and the cushion 32, when the user rides on the office chair A and leans back, the back pad group 30 is along FIG. The center of the positioning hole 313 of the two back shells 31 is separated from the center line L. The elastic body 21 is solid rubber and is yawed left and right. The elastic deformation of the solid rubber enables the two cushions 32 to Covering the back of the user, fixing the back of the user to maintain a suitable angle, thereby reducing the burden on the waist and back.

Reference is made to Figs. 9 and 10. When the user rides on the office chair A and leans back and leans back, the back pad set 30 moves in the direction of the arrow of FIG. 10, the elastic body 21 is solid rubber and elastically twisted, and the elastic deformation of the solid rubber makes The elastomer 21 provides the torsional force and pushes against the back of the user, thereby reducing the burden on the waist and back.

As far as the above is concerned, the artificial back support structure can be summarized as follows:

1. The shape of the first joint portion and the second joint portion are designed, and the first joint portion is disposed on the first pocket, and the second joint portion is disposed in the second pocket, such that the elastomer The yaw can be deflected left and right and yawed up and down, and the yaw is twisted so that the back pad set 30 fits the back of the user, reducing the burden on the waist and the back.

However, the above description is only for the preferred embodiment of the present invention, and the scope of the present invention may not be limited thereto, so that the numerical value is changed or the replacement of the equivalent elements, or the equivalent of the patent application scope of the present invention. Changes and modifications shall fall within the scope of this creation patent.

10‧‧‧Support
11‧‧‧First slot
12‧‧‧Positioning holes
20‧‧‧Flexible group
21‧‧‧ Elastomers
211‧‧‧ first joint
212‧‧‧Second junction
213‧‧‧ Body Department
2131‧‧‧ first side
2132‧‧‧ second side
22‧‧‧First connector
23‧‧‧Second connector
24‧‧‧ nuts
25‧‧‧Cleaning pieces
30‧‧‧Back cushion set
31‧‧‧ Back shell
311‧‧‧Second cavity
312‧‧‧ positioning slot
313‧‧‧Positioning holes
32‧‧‧A cushion
33‧‧‧ nuts
A‧‧‧office chair
A1‧‧‧ chassis
A2‧‧‧ column
A3‧‧‧ seat cushion
L‧‧‧ center line

Figure 1: This is a three-dimensional appearance of the back pad support structure. Figure 2: This is a three-dimensional exploded view of the back pad support structure. Figure 3: A three-dimensional exploded view of a backing pad support structure taken from another perspective. Figure 4 is a partial cross-sectional view taken in Figure 1. Fig. 5 is a partial enlarged view of Fig. 4. Figure 6 is a continuation of Figure 5 showing the backing pad set yawed in the direction of the arrow. Figure 7 is a cross-sectional view taken as Figure 1. Figure 8 is a continuation of Figure 7 showing the backing pad set yawed in the direction of the arrow. Figure 9 is a partial transparent view taken in Figure 1, wherein the chain portion is a backing pad set. Figure 10 is a continuation of Figure 9 showing the backing pad set yawed in the direction of the arrow.

10‧‧‧Support

12‧‧‧Positioning holes

20‧‧‧Flexible group

21‧‧‧ Elastomers

211‧‧‧ first joint

212‧‧‧Second junction

213‧‧‧ Body Department

22‧‧‧First connector

24‧‧‧ nuts

25‧‧‧Cleaning pieces

30‧‧‧Back cushion set

31‧‧‧ Back shell

311‧‧‧Second cavity

312‧‧‧ positioning slot

32‧‧‧A cushion

33‧‧‧ nuts

A2‧‧‧ column

Claims (9)

A backing pad supporting structure, comprising: a supporting member, which is provided with at least one first receiving groove; at least one elastic group comprising an elastic body, the elastic body is provided with a first joint portion and a second joint portion, The first joint portion is formed with a surface having at least two kinds of curvatures and is disposed on the first pocket, and the surface of the first joint portion is fitted to the inner edge of the first pocket, and the second joint portion is formed to have at least two types. a surface of the curvature; at least one backing pad set including a back shell, the back shell is provided with a second receiving groove, the second receiving groove is connected to the second joint portion, and the surface of the second joint portion is attached to the first joint portion The inner edge of the second tank. The back pad supporting structure of claim 1, wherein the back shell is disposed with a positioning groove at a circumference of the second receiving groove, the positioning groove is connected to the second receiving groove, and the elastic body comprises a body portion, the body a portion is disposed between the first joint portion and the second joint portion, the body portion is adjacent to an end surface of the first joint portion and abutting the support member adjacent to an end surface of the first tank, the body portion is adjacent to the first portion One end of the second joint abuts against the bottom of the groove of the positioning groove. The back pad support structure of claim 2, wherein the elastic body has an axis extending through the first joint portion, the second joint portion and the body portion, the body portion having a first side and a second side, the first side and the second side are respectively located on opposite sides of the body portion, the first side extends along the axis to have a width, and the second side extends along the axis to have a width, The width of the second side is greater than the width of the first side. The back pad support structure of claim 3, wherein the elastic group comprises a first connecting member and a second connecting member, the first connecting member is connected to the first connecting portion, and the second connecting member is connected to the first connecting member a second connecting portion, the supporting member is provided with a positioning hole in the at least one first receiving slot, and the back shell is in the second receiving portion The positioning hole is disposed in the slot, the first connecting member passes through the positioning hole of the supporting member, and the second connecting member penetrates the positioning hole of the back shell. The backing pad support structure of claim 4, wherein the elastic group comprises a nut and a cover member, the elastic cap nut is screwed to the first connecting member, and the cover member fits the support member Positioning the hole and covering the nut of the elastic group and the first connecting member, the backing pad set includes a nut, and the nut of the backing pad set is screwed to the second connecting member. A backing pad support structure according to any one of claims 3 to 5, comprising two elastic groups and two back pad sets, each of the elastic groups comprising an elastic body, each of the elastic bodies connecting each of the backs In the pad set, a first receiving slot is disposed on opposite ends of the supporting member, and the two first receiving slots respectively connect the two elastic bodies away from one end of the backing pad set. The back pad support structure of claim 6, wherein each of the elastic bodies comprises a first joint portion and a second joint portion, and a surface of one of the two first joint portions forms one of a plurality of curvatures The inner surface of the two first cavities is respectively attached to the surface of the two first joint portions, and the surface of one of the two second joint portions is formed into several kinds. One of the second joints has a surface having a curvature of o and faces the other of the second joints. The inner edges of the second recesses respectively fit the surfaces of the second joints. The back pad support structure of claim 6, wherein the two back pad sets respectively comprise a soft pad, and each of the soft pads is connected to each of the back shells away from one end of each of the elastic bodies, the two elastic bodies. The first side of one of the first sides is opposite to the first side of the other elastic body, the two back shells and the two soft mats are arcuate, the portions of the two soft mats adjacent to each other are flat, and the two cushions are mutually The part that is far away is bulging. A back pad support structure according to claim 6, wherein each of the elastomers is a solid rubber.