HEADRESTS FOR UNIVERSAL FOLDING CHAIRS

Abstract

A headrest for universal folding chairs comprises a fixed seat fixedly attachable to the top of the backrest of the folding chair and a headrest, where the headrest is located in the fixed seat by a support rod member. This utility model provides a clever and rational design, and expands the use function of folding chairs. Where, the headrest is fixedly attached to the top of the backrest of the folding chair with the help of a fixed seat, so as to provide a head support at the time of rest. Moreover, the supporting angle of the headrest is properly adjustable relative to the fixed seat, so as to achieve a more comfortable experience.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

This application relates to a headrest for universal folding chairs, especially to a headrest attachable to the top of the backrest of any folding chair to provide a heat support.

2. Background Art

Existing folding chairs include both steel and wooden folding chairs used in office areas or folding chairs for outdoor use during leisure time, etc. Most of these only provide backrest design, without providing a head support. If the backrest design is extended, it will be bound to increase the overall volume of the chair, and will take up the storage space. Such a folding chair is usually used by people for a short rest on certain occasions. If the chair could be provided with a head support, then users will enjoy a more comfortable experience. Therefore, this application provides at least one suitable design for a headrest for simple and universal folding chairs.

SUMMARY OF THE INVENTION

This application provides a design for a headrest for universal folding chairs with a fixed seat fixedly attachable to the top of the backrest of folding chairs.

The technical scheme in this utility model is realized as follows: a headrest for universal folding chairs, includes a fixed seat fixedly attachable to the top of the backrest of folding chairs and a headrest, where the headrest is located in the fixed seat by way of a support rod.

The fixed support rod member is fixed with a headrest on one end, and is located in a shaft hole of the fixed seat on the other end through a rotating shaft. The headrest can turn about the rotating shaft towards the inner side of the backrest of the folding chair.

The rotating shaft is a structure selected from one of a rivet, a bolt, or an elastic pin.

The shaft hole of the fixed seat is a herringbone structure. The rotating shaft of the locating support rod is slidable in the herringbone shaft hole to adjust the angle of the headrest.

In the above shaft hole of a herringbone structure, a hole is designed to have a bevel edge.

The support rod member is a eudipleural or “bilaterally symmetric” structure including two support rods, their upper ends jointly support the headrest, and their lower ends are respectively located in their respective fixed seat by a rotating shaft.

The support rod member is fixed with a headrest at one end, and runs through the sliding sleeve reserved in the fixed seat at the other end, and is provided with a locating mechanism in contact with the sliding sleeve. The locating mechanism is a spring lock installed on one side of the fixed seat.

This application teaches a clever and rational design, and expands the use function of folding chairs. The headrest is fixedly attached to the top of the backrest of the folding chair with the help of a fixed seat, so as to provide a head support at the time of rest. Moreover, the supporting angle of the headrest is properly adjustable relative to the fixed seat, so as to achieve a more comfortable experience. When necessary, the headrest may also be easily detached to maintain the inherent flexibility of folding chairs.

BRIEF DESCRIPTIONS OF THE DRAWINGS

This utility model is further illustrated in the light of specific figures as follows:

FIG. 1 is a 3D view of a headrest for universal folding chairs.

FIG. 2 is a 3D exploded view of a headrest for universal folding chairs.

FIG. 3 is a diagram of a round folding chair with a headrest.

FIG. 4 is a diagram of a headrest from angle II.

FIG. 5 is a diagram of a headrest from angle III.

FIG. 6 is a 3D exploded view of a headrest II for universal folding chairs.

FIG. 7 is a 3D view of a folding chair with a headrest.

FIG. 8 is a 3D view of a folding sofa with a headrest.

Where reference numerals have been assigned as follows to the components of embodiments of the invention:

• • 1—fixed seat
  • 11—shaft hole
  • 12—sliding sleeve
  • 13—spring lock
  • 2—headrest
  • 3—support rod member
  • 4—rotating shaft
  • 41—pin head
  • 5—folding chair
  • 51—beam

DETAILED DESCRIPTION OF THE INVENTION

Example I

As can be seen from FIGS. 1 and 2, a headrest for universal folding chairs, comprising a fixed seat 1 and a headrest 2, where the headrest 2 is located in the fixed seat 1 by a support rod member 3. More specifically, the support rod member 3 is fixed with a headrest 2 at one end, and is located in a shaft hole 11 of the fixed seat 1 on the other end through a rotating shaft 4, in order to turn around/about the shaft hole 11. Furthermore, the shaft hole 11 of the fixed seat is a herringbone (such as V-shaped or Y-shaped) structure, so that the rotating shaft 4 of the locating support rod 3 is slidable in the herringbone shaft hole 11 to adjust the inclined angle of the headrest 2.

The rotating shaft 4 is a structure selected from one of a rivet, a bolt, or an elastic pin. The rotating shaft 4 provided in this figure is an elastic pin directly inserted into the support rod member 3. The pin head 41 runs through a hole reserved in the support rod member 3, is protruded from the surface of the support rod member 3, and may be inserted into the shaft hole 11 of the fixed seat to form a movable locating structure. When the pin head 41 is forced by an external force to retract inward, the support rod member 3 can be detached from the fixed seat 1, and then the headrest 2 can be detached to maintain the inherent flexibility of the folding chair.

In order to cooperate with the rotating shaft 4, i.e. the retraction action of the elastic pin, a hole of the herringbone shaft hole 11 may be designed to have a bevel edge. When the elastic pin is sliding to the bevel edge, the bevel edge pressurizes the elastic pin head 41, forcing the elastic pin to retract, so that the support rod member 3 is detached from the fixed seat 1.

According to FIG. 3, FIG. 4 and FIG. 5, the folding chair 5 in this example is a round folding chair, lower portion of the round chair forms a cushion portion, and its high portion forms a backrest portion. The headrest 2 is fixedly attached to the top of the backrest of the folding chair 5 with the help of a fixed seat 1, and is more accurately directly fixedly attached to the beam 51 on the top of the backrest. The corresponding beam 51 in this example is the chair in the high portion. When the head is against the headrest 2, the support rod member 3 is exactly against the beam 51 on the top of the backrest of the folding chair 5, so as to form stress constraints, provide a head support and keep a comfortable rest pose. The rotating shaft 4 is in different positions of the herringbone shaft hole 11. The headrest 2 can be adjusted to a plurality of angles, in order to meet personalized needs; the headrest 2 may also turn around the rotating shaft 4 towards the inner side of the backrest of the folding chair, to prevent the headrest 2 from protrusion, which will hinder people from passing through the back of the folding chair 5.

In this example, the support rod member 3 is a eudipleural or symmetrical structure, including two support rods, their upper ends jointly support the headrest 2, and their lower ends are respectively located in their respective fixed seat 1 by a rotating shaft 4. In this structure, the support rod member 3 may use a small round rod member, which is not only compact, but also has certain flexibility.

Example II

As shown with respect to FIG. 6, the headrest 2 and the support rod member 3 may also use an integrated plastic component. The support rod member 3 is fixed with a headrest 2 at one end, is located in a sliding sleeve 12 reserved in the fixed seat 1 on the other end, and is provided with a locating mechanism in contact with the sliding sleeve 12. The rotating mechanism is a spring lock 13 installed on one side of the fixed seat 1, and may be detached from the fixed seat 1 by pulling the headrest 2.

FIG. 7 is the headrest used in a simple folding chair. FIG. 8 is a diagram of the headrest used in a folding sofa. The above two folding chairs may also use a headrest with double support rod members, or an integrated headrest may also be applied to a round folding chair structure in FIG. 3 in accordance with the aesthetic design.

While this invention has been described as having a preferred design, it is understood that it is capable of further modifications, uses and/or adaptations of the invention following in general the principle of the invention and including such departures from the present disclosure as come within the known or customary practice in the art to which the invention pertains and as maybe applied to the central features hereinbefore set forth, and fall within the scope of the invention and the limits of the appended claims. It is therefore to be understood that the present invention is not limited to the sole embodiment described above, but encompasses any and all embodiments within the scope of the following claims.

Claims

1. A headrest for universal folding chairs, comprising a fixed seat fixedly attachable to the top of the backrest of the folding chair and a headrest, where the headrest is located in the fixed seat by a support rod member.

2. A headrest for universal folding chairs defined in claim 1, wherein the support rod member is fixed with a headrest at one end, and is located in a shaft hole of the fixed seat on the other end through a rotating shaft. The headrest can turn around the rotating shaft towards the inner side of the backrest of the folding chair.

3. A headrest for universal folding chairs defined in claim 2, wherein the rotating shaft is a structure selected from one of a rivet, a bolt, or an elastic pin.

4. A headrest for universal folding chairs defined in claim 2, wherein the shaft hole of the fixed seat is a herringbone structure. The rotating shaft of the locating support rod is slidable in the herringbone shaft hole to adjust the angle of the headrest.

5. A headrest for universal folding chairs defined in claim 3, wherein a hole of the above herringbone shaft hole is designed to have a bevel edge.

6. A headrest for universal folding chairs defined in claim 2, wherein the support rod member is a eudipleural structure including two support rods, with their upper ends jointly support the headrest, and their lower ends are respectively located in their respective fixed seat by a rotating shaft.

7. A headrest for universal folding chairs defined in claim 1, wherein the support rod member is a eudipleural structure including two support rods, with their upper ends jointly support the headrest, and their lower ends are respectively located in their respective fixed seat by a rotating shaft.

8. A headrest for universal folding chairs defined in claim 1, wherein, the support rod member is fixed with a headrest at one end, and runs through a sliding sleeve reserved in the fixed seat at the other end, and is provided with a locating mechanism in contact with the sliding sleeve.

9. A headrest for universal folding chairs defined in claim 8, wherein, the locating mechanism is a spring lock installed on one side of the fixed seat.