KR101656661B1

KR101656661B1 - A headrest for chair

Info

Publication number: KR101656661B1
Application number: KR1020160014912A
Authority: KR
Inventors: 안창규
Original assignee: 주식회사 체어로
Priority date: 2016-02-05
Filing date: 2016-02-05
Publication date: 2016-09-23

Abstract

The present invention relates to a headrest for a chair, having an adjustable height and used as a neck support part. The headrest for a chair, which has an adjustable height and supports the head of a user when the user tilts the head backward to rest, is integrally formed as a head support part for supporting the head of the user and a neck support part for supporting the neck of the user. When the user rests, the head support part of the headrest is arranged on the rear side of the users head such that the users head tilted backward is in close contact with the head support part to be supported, thereby allowing the user to rest comfortably. When the user performs his/her work, the head support part of the headrest is converted into the neck support part to be arranged on the rear side of the users head such that the neck support part is in close contact with the users neck part having a smoothly curved surface with a C-shape when the user takes a straight posture, thereby allowing the users neck to be comfortably supported. Therefore, the user is allowed to perform work while having a comfortable posture. According to a first embodiment of the present invention, the headrest for a chair, which has an adjustable height and is used as the neck support part, comprises: a rest main body to be in contact with and support the head and neck of the user; and a coupling frame allowing the rest of the main body to be inserted to be fixedly coupled. The rest of the main body comprises an upper frame, an insertion part and a hinge shaft. The coupling frame comprises an insertion groove, an elastic support part and an elastic spring.

Description

{A headrest for chair}

The present invention relates to a head rest for a chair which is adjustable to a neck support, and more particularly, to a chair rest which can adjust the height and support the head when the rest of the chair is restrained by the chair user The headrest is integrally formed by a head supporting portion for supporting the head and a neck supporting portion for supporting the head. When the user rests, the head supporting portion of the headrest is arranged behind the user's head so that the user can press the head back So that the user can take a comfortable rest. When the user performs the task, the head support portion of the headrest is hinged to the neck support portion so that the neck support portion is disposed behind the user's head. Thus, So that the user can comfortably support the user's neck, In anhan stance it relates to a chair that is adjustable headrest for a neck support that allows you to perform a task.

Generally, widely used chairs include business chairs used in schools, offices, and transportation chairs used in vehicles such as automobiles and airplanes. For the chair user, most chairs support the user's head on the chair A headrest is formed.

When a user using such a business chair or a transportation chair performs work (hereinafter referred to as "work") for studying, work, or driving (hereinafter referred to as "rest" So that the user can rest his or her head against the headrest to be rested. In order to relax the user, it is possible to rest almost all of the chairs The headrest is formed to be spaced apart from the user's head by a certain distance and disposed rearward.

As described above, for the user's work and rest, there have been proposed many improvements to the backrest or the backrest of the chair which can comfortably support the back and back of the user at the time of the user's work, And the neck can not be comfortably supported at the time of work or at the same time.

As a conventional method for comfortably supporting the head and neck of a user, Korean Registered Utility Model No. 20-0326836 entitled " neck-headrest of a car chair " has been proposed. According to the proposal, The headrests of the car are divided into a headrest portion and a neckrest portion so as to form a convex shape corresponding to the curve of the back of the user's neck and head to support both the user's neck and the head. The above proposal has an advantage that it can be applied not only to a car chair but also to a business chair by a slight design change. However, the headrest portion and the neckrest portion each have a predetermined length and only perform their own functions, As the height increases, the view of people behind the chair is disturbed, and above all, the height of the chair is formed high.

As another alternative, Korean Utility Model Registration No. 20-0463801 entitled " Neck support " has been proposed. According to the above proposal, a separate neck support is fixed to the headrest of the vehicle to support the driver's neck comfortably The neckrest is provided with a safety function for preventing fatigue of the driver and relieving the impact of the neck at the time of an accident. However, the above-mentioned proposal suggests that a separate neckrest should be additionally disposed on the headrest, The headrest and the neck support must be connected and fixed through the coupling means. In this case, the headrest and the neck support must be coupled and assembled through a complicated manufacturing and assembling process. And the fixation is also a proposal that has a disadvantage that it has a relatively weak structure against an external impact.

As a further alternative, Korean Patent No. 10-1046568 entitled " chair with head restraint " has been proposed. According to the proposal, a so-called "head The present invention is not limited to the use of a headrest of a chair, but rather can be used as a pillow, and the chair can be used as a chair, In order to use the headrest as a headrest, it is required to additionally include a predetermined structure that allows the headrests to be coupled to the upper portion of the chair. Thus, the headrest according to the proposal has no compatibility with general use applicable to a business chair or a transportation chair. There are big defects that are very limited, and if you want to install it in a common chair, This was a proposal that has otherwise been necessary to secure the connection problem still can not be done easily and seamlessly as well.

Therefore, regardless of whether it is a chair for business or a chair for transportation, it can be used universally as a headrest installed on the upper part of all chairs and should be easy to install. Above all, There is a desperate need for a headrest for a chair that can comfortably support the user's head and neck together at work or at rest, such as many of the prior and improved many proposals for the backrest or backrest.

(Prior Art 1) Korean Utility Model Registration No. 20-0326836 (Prior Art 2) Korean Utility Model Registration No. 20-0463801 (Prior Art 3) Korean Patent No. 10-1046568

It is an object of the present invention to solve the problems and disadvantages of the above prior arts, and it is an object of the present invention to provide a head restraint system for a headrest, The head rest portion of the headrest is arranged in the rear of the user's neck so that the headrest can be restrained by the user. The present invention provides a headrest for a chair, which can be supported in a comfortable posture while supporting the user's neck by a neck support during work, and is adjustable to a neck support capable of supporting the head or supporting the neck as needed.

The above object of the present invention is also achieved by a head restraint system for comfortably supporting a user's head by a head supporting part when resting by placing a head rest part of a head rest behind a user's head for resting according to need, Separating from the coupling frame, turning it in the opposite direction, reinserting and fixing the headrest, and rotating the headrest of the headrest so that the neckrest of the headrest is disposed behind the user's neck so that the user can support the user's neck In order to be able to perform tasks,

An upper rotating frame 110, a lower insertion portion 120, and a hinge shaft 130,

The upper rotating frame 110 has a convex neck support 112 formed at the center thereof so as to have a convexly curved shape and having a shape of '∩' so as to be convex at its center, And a hinge supporting part 111 for supporting the user's head with a large area and a hinge supporting part 113 extending from the neck supporting part 112 at the other side of the neck supporting part 112 ,

The lower insertion portion 120 is connected to the hinge supporting portion 113 of the upper rotating frame 110 so as to be hingedly connected to the hinge supporting portion 121, And a support portion (122) extended and inserted and fixed to the coupling frame of the chair,

The hinge shaft 130 is inserted into the hinge supporter 113 of the upper rotary frame 110 and the hinge supporter 121 of the lower insertion portion 120 so that the upper rotary frame 110 can be rotated And is fixed to the neck support according to the present invention.

The headrest for a chair, which is variable in the neck support according to the present invention, can support the user's head or neck while closely contacting the user's head through height adjustment regardless of the height of the user, The head rest of the headrest is disposed rearwardly of the user's neck so that the user can support the user's neck during work, So that it is possible to select and use the head support portion or the neck support portion according to the user's need.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front perspective view of a chair equipped with a headrest for a chair which is adjustable to a neck support according to a first embodiment of the present invention; Fig.
Fig. 2 is an exploded perspective view of a headrest for a chair which is variable into a neck support in the first embodiment of the present invention. Fig.
FIG. 3A is a longitudinal sectional view of a coupling frame before the rest body according to the first embodiment of the present invention is engaged and fixed to the coupling frame; FIG.
Fig. 3B is a longitudinal sectional view of the coupling frame after the rest body is engaged with and fixed to the coupling frame. Fig.
FIG. 4A is a state view showing a state in which the head supporting portion of the rest body portion according to the first embodiment of the present invention is disposed at the time of user rest. FIG.
FIG. 4B is a state diagram showing a state in which the neck support portion of the rest body portion according to the first embodiment of the present invention is disposed at the time of user's work. FIG.
5 is a rear perspective view of a headrest for a chair, which is adjustable to a neck support according to a second embodiment of the present invention, is mounted on an automotive seat.

Hereinafter, a headrest for a chair which is variable into a neck support according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The headrest A for a chair which is variable in the neck support according to the first embodiment of the present invention is detachably mounted on the coupling frame 200 on the top of the chair C. [

The headrest A for a chair which is variable in the neck support portion is composed of an upper rotation frame 110, a lower insertion portion 120 and a hinge shaft 130. The coupling frame 200 is inserted into the insertion groove 210, An elastic support portion 220, and an elastic spring 230.

As shown in Figs. 4A and 4B, the upper rotating frame 110 of the headrest A for a chair, which is variable in the neck support portion, is curved at a center in a convex shape, A head supporting portion 111 having a large area and supporting the head of the user is formed on the neck supporting portion 112, And a hinge supporter 113 having a through hole 113a formed on both sides of a lower end of one end extending from the neck support 112 at the other side of the neck support 112.

The lower insertion part 120 includes a hinge support part 121 having a through hole 121a formed at an upper center thereof so as to communicate with the through hole 113a of the hinge support part 113 of the upper rotary frame 110, And a supporting portion 122 extending downward from the hinge supporting portion 121 and inserted and fixed to the coupling frame 200.

The hinge shaft 130 is inserted into the through hole 113a of the hinge supporting part 113 of the upper rotating frame 110 and the through hole 121a of the hinge supporting part 121 of the lower insertion part 120, So that the frame 110 is hingedly fixed. The hinge shaft 130 is divided into a plurality of male and female split shafts 131 which are inserted and fixed in the middle between male and female. However, the present invention is not limited thereto, and the male and female split shafts 131 may be screw- A structure in which a slit groove is formed at the end of the split shaft 131 and is assembled may be proposed.

The chair headrest A is supported by the head supporting portion 111 of the upper rotating frame 110 when the user rests while the user's head is bent backward. The headrest A for the chair is detached from the coupling frame 200 to be separated from the coupling frame 200 and the headrest A for the chair is rotated by 180 degrees so as to be brought into contact with the coupling frame 200 When the upper rotating frame 110 is hinged by 90 degrees through the hinge supporting part 113, the head supporting part 111 indicated by the alternate long and short dash line arranged vertically is horizontally The neck support 112 protruding toward the upper portion and protruding from the center is disposed to protrude from the back of the user's neck and is supported while being in contact with the user's neck, The user can comfortably and continuously be held in contact with the neck support 112 by the user even when the user looks at his work so that the user can comfortably work while being supported by the neck support 112 It will be possible to do.

The upper rotating frame 110 includes a cushion member 110a disposed on an outer side surface thereof. The cushion member 110a is coupled to the upper surface of the upper rotating frame 110 through a coupling means such as a bonding or coupling protrusion, To the outer surface of the upper frame (110).

Although the upper rotating frame 110 and the cushion member 110a are separated and fixed to each other in the first embodiment of the present invention, the upper rotating frame 110 and the cushion member 110a are not separated It is also a constitution belonging to the first embodiment of the present invention.

A hinge supporting part 121 formed at the upper part of the lower insertion part 120 is connected to the hinge supporting part 113 formed at the lower part of the upper rotating frame 110 and is hinge- So that the upper rotating frame 110 can be selectively rotated about 90 degrees about the hinge shaft 130 to support the head of the chair user or to support the neck.

When the user rests, the head supporting portion 111 is disposed to support the back of the user's head, and the chair headrest A is separated from the coupling frame 200 so as to support the user's neck during work The neck support 112 is rotated 180 degrees in the opposite direction and inserted and fixed in the coupling frame 200. When the upper frame 110 is hinged by 90 degrees, the head support 111 faces upward, So that the neck of the user can be comfortably supported.

The lower insertion portion 120 is formed with a hinge fixing portion 121 to be hingedly connected to the upper rotation frame 110 on the upper portion of the hinge fixing portion 121, On both side surfaces of the support portion 122 extending downward, a toothed surface 122a for adjusting the height of the chair headrest A is formed. The toothed surface 122a is tightly coupled to the toothed surface 221a formed on the elastic supporting portion 220 of the coupling frame 200 to be described later so that the chair headrest A is engaged with the coupling frame 200 As shown in Fig. The toothed surface 122a is formed to extend in the longitudinal direction over both sides of the support portion 122 of the lower insertion portion 120 so that the lower insertion portion 120 It is possible to adjust the height at a height suitable for the user's height while moving up and down in the insertion groove 210 of the coupling frame 200.

The lower insertion portion 120 is formed in a rectangular shape having a rectangular cross section in the first embodiment of the present invention. However, the lower insertion portion 120 may be formed in a circular bar shape having a circular cross section, It may be formed so as to have a shape that can be inserted in correspondence with the shape of the groove 210.

A hinge shaft 113 formed at a lower portion of the upper rotary frame 110 and a hinge shaft 121 formed at an upper portion of the lower insertion portion 120 are connected to a hinge shaft 130 are inserted and coupled so that the upper frame 110 and the insertion portion 120 are hinged to each other. Since the hinge shaft 130 is a well-known technology, a detailed description thereof will be omitted.

The coupling frame 200 is inserted and fixed to the headrest A for the chair and includes an insertion groove 210, an elastic supporting portion 220 and an elastic spring 230. The coupling frame 200 is inserted into the backrest frame b of the chair And is fixed by screw fixing, which is a known joining method.

The insertion groove 210 is formed at a predetermined depth in the coupling frame 200 and the lower insertion portion 120 of the chair headrest A is inserted to insert the chair headrest A, And the coupling frame 200 are coupled and fixed to each other. The insertion groove 210 has a rectangular cross section corresponding to the shape of the insertion portion 120 and is formed on the upper portion of the coupling frame 200. As described above, the shape of the insertion groove 210 is not limited to a rectangular shape. The insertion groove 210 may be formed in a shape such that the lower insertion portion 120 is inserted corresponding to the shape of the lower insertion portion 120.

The resilient supporting portion 220 elastically supports the headrest A for the chair while fixing the headrest A for the chair to the coupling frame 200 in such a manner that the headrest A is resiliently supported. And a tooth surface 221a corresponding to the tooth surface 122a of the lower insertion portion 120 is formed on the side surface. The tooth surfaces 221a are tightly coupled to the tooth surfaces 122a of the lower insertion portion 120 so that the chair headrest A is firmly fixed to the coupling frame 200, . 3A and 3B, before the lower insertion portion 120 is inserted, the elastic supporting portion 220 is disposed inside the insertion groove 210 by an elastic spring 230, which will be described later. However, The toothed surface 221a of the elastic support portion 220 abuts against the toothed surface 122a of the lower insertion portion 120 while the lower inserted portion 120 is inserted and the retracted elastic support portion 220 The resilient supporting portion 220 receives the resilient restoring force of the resilient spring 230 pushed toward the lower inserting portion 120 by the resilient restoring force of the resilient spring 230 and closely contacts the lower inserting portion 120 So that the lower insertion portion 120 is firmly inserted and fixed to the coupling frame 200.

The toothed surface 122a of the lower insertion part 120 is in contact with the toothed surface 221a of the elastic supporting part 220 of the coupling frame 200 and the lower insertion part 120 moves up and down, So that the height of the main body 100 can be adjusted or separated and inserted.

In the first embodiment of the present invention, the toe surface 122a is formed in the headrest A for the chair and the toothed surface 221a is formed in the coupling frame 200 so as to be in close contact with each other, . In the first embodiment of the present invention, the elastic supporters 220 are formed in pairs on the left and right sides of the lower insertion portion 120, and the number of the elastic supporters 220 may be one However, preferably two are formed on the left and right sides.

The elastic spring 230 is connected to and fixed to the elastic supporter 220 on one side opposite to the tooth surface 221a of the elastic supporter 220. As described above, the resilient restoring force of the elastic spring 230 tightly supports the elastic supporting portion 220 to the lower insertion portion 120 of the chair headrest A and provides an elastic restoring force so that the elastic supporting portion 220 can abut .

The headrest A of the chairs capable of adjusting the height according to the first embodiment of the present invention having the above configuration is applicable to a chair for business such as a school or an office.

The headrest A for a chair which can be changed into a neck support according to a second embodiment of the present invention is applicable to an automobile seat in particular and its configuration is similar to that of the first embodiment of the present invention (H) formed on the upper portion of the automobile seat so that the headrest for the automobile is inserted outside the joint frame 200 of the first embodiment, There is further formed a fixing means 300 for allowing the rest A to be inserted.

The fixing means 300 according to the second embodiment of the present invention is formed of a metal circular pipe and fixed to the coupling frame 200 and has two insertion holes h formed on the upper portion of the car seat, And is fixed to the car seat.

The headrest for a chair which is variable in the neck support according to the present invention can be said to be industrially applicable because it can be said that it is possible to repeatedly manufacture the same product in the chair industry which produces and produces a headrest for a chair .

110. Upper rotating frame 120. Lower insertion portion
130. Hinge shaft

Claims

A headrest for a chair which is arranged on an upper portion of a chair and which is variable in a neck support portion,
The headrest A for a chair which is variable in the neck support portion is composed of an upper rotation frame 110, a lower insertion portion 120 and a hinge shaft 130,
The upper rotating frame 110 has a convex neck support 112 formed at the center thereof convexly curved so as to have a shape of '∩', a long portion extending to one side of the neck support 112 and having a large area And a hinge supporting part 111 for supporting the head of the user and a hinge supporting part 113 extending from the neck supporting part 112 at the other side of the neck supporting part 112,
The lower insertion portion 120 is connected to the hinge supporting portion 113 of the upper rotating frame 110 so as to be hingedly connected to the hinge supporting portion 121, And a support portion (122) extended and inserted and fixed to the coupling frame of the chair,
The hinge shaft 130 is inserted into the hinge supporter 113 of the upper rotary frame 110 and the hinge supporter 121 of the lower insertion portion 120 so that the upper rotary frame 110 can be rotated Fixed,
The upper rotating frame 110 is rotated about the hinge shaft 130 so that the neck supporting portion 112 of the upper rotating frame 110 protrudes from the back of the user's neck, The chair head restraint 110 is rotated 90 degrees about the hinge shaft 130 to support the neck of the user, and when resting, the chair head restraint A is separated from the joining frame 180 degrees, So that the head supporting portion (111) of the upper rotating frame (110) is arranged behind the head of the user.