TWM574869U - Foldable armrest structure - Google Patents

Abstract

This creation is a collapsible armrest structure, which includes a fixed seat fixed to the bottom of the seat, an armrest body and a pressing member, wherein the fixed seat is provided with a cylindrical pivoting end and a planar lock A fixed end, the side of the pivoting end is provided with a radial receiving groove toward the center of the circle; the bottom end of the armrest body is provided with a pivoting sleeve sleeved with the pivoting end of the fixed seat, the pivoting sleeve is round The shape of the hole is provided with a radial perforation penetrating to the surface of the pivot sleeve; the pressing member is elastically arranged at the radial receiving slot of the pivot end of the fixed seat and the radial perforation of the pivot sleeve of the armrest body, and has a button and a An elastic member, the button may be limited within the radial perforation, and the outer edge of the button may extend out of the radial perforation, the elastic member is disposed inside the button, so that the pressing member normally has an outward support The elastic force; by this, when the pressing member is pressed again by force, the armrest body and the fixing seat can be released from the locking limit of the folding purpose.

Description

Retractable armrest structure

This creation provides a technical field of office chair armrests, especially the designer who technically provides a collapsible armrest structure.

According to the conventional knowledge, seats can be roughly divided into seats with or without armrests, and the seats with armrests are generally made into fixed armrests. When the seat is received under the table, there will be obstacles. Therefore, the seat with fixed armrests still has its shortcomings in use and needs to be improved.

Although some of the conventional armrests of office chairs are foldable, the structure is not only complicated, but also the connection between the fixing seat and the armrest body needs to be locked and combined by bolts, which is very inconvenient in assembly.

Therefore, in response to the problems of the above-mentioned conventional structure, how to develop a more ideal and practical innovative structure is what consumers are eagerly expecting, and it is also the goal and direction of the relevant industry to work hard to develop breakthroughs.

In view of this, the creator has many years of experience in manufacturing, development and design of related products. In view of the above goals, after detailed design and careful evaluation, he finally has a practical original creation.

The main purpose of this creation is to provide a collapsible armrest structure, which is simple in structure and easy to manufacture, assemble and use.

In order to achieve the above purpose, the present invention provides a foldable armrest structure, which includes a fixing seat fixed to the bottom of the seat, an armrest body and a pressing member, wherein the fixing seat is provided with a cylindrical pivoting end and a A planar locking end, the side of the pivoting end is provided with a radial receiving slot toward the center of the circle; the bottom end of the armrest body is provided with a pivoting sleeve sleeved with the pivoting end of the fixed seat, the pivoting The sleeve is a circular hole with a radial perforation penetrating to the surface of the pivot sleeve; the pressing member is elastically disposed at the radial receiving slot of the pivot end of the fixed seat and the radial perforation of the pivot sleeve of the armrest body, A button and an elastic member, the button can be limited within the radial perforation, and the outer edge of the button can extend beyond the radial perforation, the elastic member is located inside the button, so that the pressing member has a normal state An elastic force supporting outwards; by this, when the pressing member is pressed again by force, the armrest body and the fixing seat can be separated from the folding limit of the locking limit.

Regarding the techniques, means and functions used in this creation, I will give a preferred embodiment and detailed descriptions in conjunction with the drawings. I believe that the above-mentioned purposes, structures and features of this creation can be obtained from an in-depth and specific understanding .

10‧‧‧Fixed seat

11‧‧‧Pivot end

110‧‧‧Radial groove

111‧‧‧Sink hole

112‧‧‧Limit groove

113‧‧‧Notch

114‧‧‧Convex

12‧‧‧Locked end

20‧‧‧Handrail body

21‧‧‧Pivot sleeve

210‧‧‧Circular hole

211‧‧‧Radial perforation

212‧‧‧recessed surface

213‧‧‧Notch

214‧‧‧ convex tab

30‧‧‧Pressing piece

31‧‧‧ button

310‧‧‧Convex flange

311‧‧‧Slot

32‧‧‧Elastic parts

The first picture is a three-dimensional schematic of this creation.

The second picture is a three-dimensional exploded view of this creation.

The third picture is a three-dimensional exploded schematic view of the handrail body of this creation from another perspective.

The fourth picture is a partial cross-sectional schematic view of the handrail body of this creation.

The fifth picture is a schematic sectional view of a combination of the creations, showing the fixed base and the armrest body formed by the pressing member to form a positioning state in which the catch cannot rotate.

The sixth picture is another schematic sectional view of the composition, showing the movement and limiting relationship between the limiting groove of the pivoting end of the fixed seat and the convex connecting piece of the pivoting sleeve of the armrest body.

The seventh picture is the combined sectional view after the fifth picture is folded.

This creation provides a designer of a folding armrest structure.

In order to enable your reviewing committee to have a better understanding and understanding of the purpose, features and functions of this creation, we hereby cooperate with the implementation mode and diagrams as follows:

Please refer to the first picture to the fourth picture for the first time, this creation provides a foldable armrest structure, which includes: a fixed seat 10 fixed to the bottom of the seat, the fixed seat 10 is provided with a cylindrical pivot The connecting end 11 and a planar locking end 12, wherein the side of the pivoting end 11 is provided with a radial receiving slot 110 toward the center of the circle. In this embodiment, the radial receiving slot 110 is a rectangular shape. And the notch generally faces the back of the locking end 12 horizontally, and a counterbore 111 extends inwardly from the center of the bottom end, and a limiting groove 112 is formed on the surface of the cylinder near the pivot end 11, the limiting position One end of the groove 112 communicates with the outer end surface of the pivoting end 11 and is provided with a notch 113. The positions of the notch 113 and the radial receiving groove 110 are oppositely arranged, and the limiting groove 112 is oriented toward the notch 113 and A groove shaped like the axis of the cylinder, and a slightly protruding protrusion 114 is formed in the limiting groove 112 above the notch 113; an armrest body 20 is provided at its bottom end with a pivoting end connected to the fixing seat 10 11-phase pivot sleeve 21, the pivot sleeve 21 is a circular hole 210, and a radial through hole 211 is formed in the circular hole 210 toward the rear end surface to penetrate to the surface of the pivot sleeve 21, in this embodiment In the example, the radial perforation 211 is slightly smaller than the relative shape of the radial accommodating slot 110. The upper end of the radial perforation 211 in the circular hole 210 is further provided with a concave surface 212 coaxial with the circular hole 210 , And the recessed surface 212 extends to the edge of the sleeve 21 of the pivot sleeve 21 to form a recess 213 in the circular hole 210, and a protruding piece 214 is provided in the circular hole 210 near the bottom edge , The protruding piece 214 can just pass the notch 113 of the fixing base 10 and make the protruding piece 214 can be positioned in the limiting groove 112; and a pressing member 30 is elastic The radial receptacle 110 of the pivotal end 11 of the fixed base 10 and the radial perforation 211 of the pivot sleeve 21 of the armrest body 20 have a button 31 and an elastic member 32, wherein the longitudinal section of the button 31 is opposite The fixed base 10 is pivotally connected to the radial receptacle 110 of the end 11 and has a convex rim 310 whose outer diameter is slightly larger than the radial perforation 211 of the pivot sleeve 21 so that the button 31 can be restricted by the radial perforation 211, and its outer edge can extend out of the radial perforation 211, the elastic member 32 is disposed inside the button 31, in the actual In the embodiment, a hole 311 may be provided in the inner edge of the button 31 for one end of the elastic body 32 to pass through, and the other end of the elastic body 32 may be inserted into the counterbore 111 of the radial receiving slot 110. As a result, the pressing member 30 normally has an elastic force propping outwardly to act on the radial receiving groove 110 of the pivoting end 11 of the fixing base 10 and the radial through hole 211 of the pivoting sleeve 21 of the armrest body 20.

By the composition of the above-mentioned components, during assembly, the pressing member 30 is first received in the radial receiving groove 110 of the pivoting end 11 of the fixing base 10, and then the recess 213 of the armrest body 20 pivoting the sleeve 21 Dispose into the circular hole 210. At this time, the notch 113 of the pivoting end 11 of the fixing base 10 corresponds to the protruding piece 214 in the circular hole 210. When passing the protruding piece 214, the fixing base 10 Rotating in the direction of the radial perforation 211 of the pivot sleeve 21, so that the pressing member 30 can fall into the radial perforation of the pivot sleeve 21 due to the design that the concave surface 212 formed at the recess 213 communicates with the radial perforation 211 Protruding at 211, and the convex rim 310 of the button 31 can be caught in the radial perforation 211 to prevent the button 31 of the pressing member 30 from coming out, and the convex tab 214 in the circular hole 210 Then, it can be fixed on the limiting groove 112 by the protrusion 114 in the limiting groove 112, so that the armrest body 20 is caught by the pressing member 30 to form a normal use positioning state that cannot rotate (such as the first (Figure 5), when the user wants to fold the armrest, press the pressing member 30 inwards, the armrest body 20 can be detached from the restraint of the pressing member 30 and can rotate At the same time, the restraining effect of the protruding piece 214 in the restraining groove 112 enables the armrest body 20 to produce a forward and backward contact point (as shown in the sixth and seventh figures).

It can be seen from the above that the foldable armrest structure created is indeed the industry's first and meets the novelty requirements of new patents, and its comprehensive and innovative design meets the progressive requirements of new patents, and it is foldable The armrest has a simple structure, and is easy to manufacture, assemble and use, which is in line with better industrial utilization.

The foregoing is a detailed description of the technical characteristics of this creation for the preferred embodiment of this creation; however, persons familiar with this technology may make changes and modifications to this creation without departing from the spirit and principles of this creation. Such changes and modifications should be covered in the scope defined by the scope of the patent application as follows.

In summary, this creation provides a foldable armrest structure, which has indeed achieved all the purposes of this creation. In addition, the spatial structure of its combined structure has not been seen in similar products, nor has it been disclosed before the application, and has met the patent The law stipulates that the application shall be made in accordance with the law.

Claims (10)

A collapsible armrest structure includes: a fixed seat fixed to the bottom of the seat, the fixed seat is provided with a cylindrical pivoting end and a planar locking end, wherein the side of the pivoting end is provided There is a radial receiving groove towards the center of the circle; an armrest body is provided with a pivot sleeve sleeved with the pivoting end of the fixed seat at the bottom end. The pivot sleeve has a circular hole slot with a radial through hole To the surface of the pivot sleeve; and a pressing member, which is elastically arranged at the radial receiving groove of the pivot end of the fixed seat and the radial perforation of the pivot sleeve of the armrest body, has a button and an elastic member, and the button can be restricted Inside the radial perforation, and the outer end edge can extend out of the radial perforation, the elastic member is disposed inside the button, so that the pressing member normally has an elastic force supporting outward. The collapsible armrest structure as described in item 1 of the patent application scope, wherein the radial receiving groove is a rectangular shape, and the notch is generally toward the back of the horizontal of the locking end. The collapsible armrest structure as described in item 1 of the scope of the patent application, wherein the bottom end of the radial receiving groove extends inwards to a counterbore. The foldable armrest structure as described in item 1 of the patent application scope, in which a limiting groove is formed on the surface of the cylinder of the pivoting end, and one end of the limiting groove is in communication with the outer end surface of the pivoting end and is provided with a gap , The position of the notch and the radial receiving groove are arranged oppositely. The collapsible armrest structure as described in item 4 of the patent application scope, wherein the limiting groove is a groove-shaped groove oriented above the notch and the same as the axis of the cylinder, and the limiting groove above the notch A slightly protruding bulge is formed inside. The collapsible armrest structure as described in item 1 of the patent application scope, wherein the radial perforation is toward the rear face of the circular hole, and the radial perforation is slightly smaller than the relative shape of the radial receiving slot. The collapsible armrest structure as described in item 1 of the patent application scope, wherein the upper end of the radial perforation in the circular hole is further provided with a concave surface coaxial with the circular hole, and the concave surface And extending to the sleeve edge of the pivot sleeve, the circular hole forms a notch, and a protruding piece is provided in the circular hole near the bottom edge. The foldable armrest structure as described in item 4 of the patent application scope, wherein the protruding piece can just pass the gap of the fixing seat and allow the protruding piece to be positioned in the limiting groove. The collapsible armrest structure as described in item 1 of the patent application scope, wherein the longitudinal section of the button is a shape of a radial receiving groove at the pivoting end of the fixed seat, and has an outer diameter that is more radial than the pivoting sleeve A slightly larger perforated flange. The collapsible armrest structure as described in item 3 of the patent application scope, wherein the inner edge of the button can be provided with a hole for one end of the elastic body to pass through, and the other end of the elastic body can be passed through In the sink hole of the radial groove.