KR101680974B1 - Chair of Move Back - Google Patents

Chair of Move Back Download PDF

Info

Publication number
KR101680974B1
KR101680974B1 KR1020150087041A KR20150087041A KR101680974B1 KR 101680974 B1 KR101680974 B1 KR 101680974B1 KR 1020150087041 A KR1020150087041 A KR 1020150087041A KR 20150087041 A KR20150087041 A KR 20150087041A KR 101680974 B1 KR101680974 B1 KR 101680974B1
Authority
KR
South Korea
Prior art keywords
backrest
guide shaft
mover
chair
shape
Prior art date
Application number
KR1020150087041A
Other languages
Korean (ko)
Inventor
박영호
Original Assignee
박영호
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박영호 filed Critical 박영호
Priority to KR1020150087041A priority Critical patent/KR101680974B1/en
Application granted granted Critical
Publication of KR101680974B1 publication Critical patent/KR101680974B1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chairs Characterized By Structure (AREA)

Abstract

A chair backrest including a guide shaft 10 fixed to the seat back and back direction with respect to the seat back and a mover moving in the back and forth direction of the seat in association with the guide shaft are formed on the chair seat or the chair frame.
The left and right lower portions of the backrest structure 2 for supporting the back plate 1 of the backrest are coupled to the mover.
The through hole of the mover, which engages with the guide shaft 10, forms a through hole so as to slightly move in the lateral direction. The guide shaft 10 is formed with a saw tooth shape and the shifter is formed with a saw tooth shape to be engaged with a saw tooth shape formed on the guide shaft. When the shifter is moved to the right and left of the chair, And the back and forth movement of the backrest can be interrupted by joining or dropping the configured teeth.

Description

{Chair of Move Back}

The present invention relates to a chair in which a backrest is shifted forward and backward so that a worker sitting on a chair can tilt his or her posture forward or backward, or move back and forth around a chair seat and sit comfortably.

Japanese utility model application publication no. 45-20210 (filed on July 22, 1966) shows the first prior art that is configured to move the backrest. This way, when the back is up and down, but when you are backing up, you have to lean against your back to get your butt off the seat. It can not sit because it is off the seat. I can not write at all.

Thereafter, a method of making the U-shaped bottom of the back of the back, such as KR 20-0448295, was filed as an improved method. However, such a method has a strange shape having a protrusion at the rear of the chair and can not be practically used. A method of installing a guide rail on both sides of the seat so as not to protrude rearward has been proposed as in JPA_1999113674 and has become mainstream.

On the other hand, in a method of fixing the movement of the backrest, various methods for pinning and fixing the pins have been filed. JPA_1999113674 suggests a method in which the backrest does not protrude rearward. However, this also mentions that the backrest can be fixed by pin-fitting without any specific configuration. The patent is a function of locking the backrest received.

In the following, a fixing method in which a pin is fixed by the same method as that shown in KR 20-0448295 in Korea is a fixed method.

That is, in the history of the invention in which the backrest moves back and forth, the backrest is configured to protrude rearward, and the backrest moves to both sides of the seat.

At this time, the method of fixing the moving back is a method of fixing the pin by fixing the pin, which is a reliable method in that it can secure the certainty of fixation. However, inserting a pin into a discontinuously spaced hole requires adjustment, and a clicking sound is inevitable when connecting and disconnecting. In addition, the positions where the pins are inserted are provided on the left and right sides, respectively, or on both sides.

If the fixing pin is configured only on either the left or right side, there is a phenomenon that the unfixed side is pushed when the backrest is tilted. However, it is very annoying to install it on both sides and operate each.

In order to remedy these inconveniences, I have made a series of inventions such as 10-1103154 and 10-1092785, 10-1243018 and so on. This is basically a fixed method using friction. It is believed that by introducing a piece that touches the surface and controlling the roughness of the surface, sufficient fixing force can be obtained even with a small force. A cam or screw was used as a means of actuating the clamping force, and a contact pad was interposed to adjust the contact surface to reduce wear. However, in the case of assuming frequent movement and fixation in the process of producing the prototype, abrasion of the cam or screw used as the connection and disconnection mechanism to obtain the friction and abrasion of the contact surface were serious.

Thus, the present invention provides an invention which is easy to fix and does not have a problem such as abrasion.

When studying or studying in front of a desk, the worker approaches the upper part of the workbench, and the back of the chair falls off the back of the worker. Therefore, the worker who is not supported by the backrest becomes unstable and tired easily over time. Although attempts have been made to cope with this condition as mentioned above, there is no practicality due to incomplete use and inconvenience in use or not in practical use. Overcoming these shortcomings, I have invented a series of inventions.

However, it was considered that there was difficulty in ensuring sufficient durability due to the worn parts used in the preceding invention of the prototype during the manufacturing process. Therefore, it is desirable to invent a method that can escape the problem of abrasion inherently while maintaining convenience and certain certainty.

A chair backrest which is movable in the front and rear direction of the chair, including a guide shaft 10 fixed to the seat back and fixed to the seat in a chair seat plate or a chair frame and a mover moving in the front- In the chair,

The left and right lower portions of the backrest structure 2 supporting the back plate 1 of the backrest are engaged with the mover. The guide shaft 10 is formed with a sawtooth shape and the mover has a sawtooth shape to be engaged with the sawtooth shape. As the backrest coupled to the mover moves to the left and right of the chair, So that the back and forth movement of the back can be interrupted.

In the above chair, the mover 6, which engages with the guide shaft 10, forms a shaft hole so that the backrest can be moved laterally with respect to the guide shaft 10. [ When the saw tooth formed on the guide shaft 10 and the saw tooth formed on the shaft hole of the mover are engaged with each other, the backrest is restricted from moving in the front-back direction of the chair.

The backrest is pushed to the left or right side in the direction in which the coupled saw teeth are separated, so that the backrest can be moved back and forth along the guide shaft 10 when the engagement is released.

In the above chair, the mover 6, which engages with the guide shaft 10, forms a shaft hole so that the backrest can be moved laterally with respect to the guide shaft 10. [ When the saw tooth formed on the guide shaft 10 and the saw tooth formed on the outer side of the shaft hole of the mover are engaged with each other, the backrest is restricted from moving in the front-back direction of the chair.

The backrest is pushed to the left or right side in the direction in which the coupled saw teeth are separated, so that the backrest can be moved back and forth along the guide shaft 10 when the engagement is released.

The pin 62 is configured to fill the shaft clearance portion of the combined guide shaft 10 and the mover 6 in order to restrict the lateral movement of the mover 6 to maintain a stable state, And a pusher releasing the pusher.

Fixation of the backrest movement is achieved by engaging with a saw tooth formed on the guide shaft 10, which is a fixed portion, and a saw tooth formed on the mover 6 so as to move in the left and right direction of the chair. Release of these couplings is accomplished by pushing the mover in the opposite direction of engagement.

As a result, the backrest coupled to the mover 6, which is engaged with the guide shaft 10 and can move in the front-rear direction of the chair along the guide shaft 10, can move freely forward and backward along the guide shaft 10 do.

These operations can fundamentally solve the wear-out problem in the prior art of the present invention because there is no part to be rubbed. Therefore, the problem of durability due to abrasion is solved.

In addition, compared with my prior art, the components to be operated can be minimized, so that the configuration is simple, and therefore, it is economically advantageous.

Fig. 1 is a perspective view of a chair in which the back and forth movement is interrupted by the back and forth movement of the backrest
Fig. 2: enlarged view of the through-hole shape of the mover and the coupled state of the guide shaft and mover in Fig. 1
Figure 3: A perspective view of the left hand mover part of the chair
Figure 4: Exploded view of the restoring elastic member, guide shaft, mover coupling
Fig. 5: a chair perspective view in which a sawtooth shape is formed on the outside of the mover
6: a perspective view of the serrated component of Fig. 5
Fig. 7 is a perspective view of the chair including a configuration in which the left and right movement of the backrest is returned and stopped in Fig. 1;
8 is an exploded view of the backrest left and right movement fixing apparatus of Fig. 7;
Fig. 9 is a perspective view of a chair in which a guide shaft is arranged in the middle of a seat plate;

The present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is an example of a backrest moving chair constructed such that the toothed shape of the mover is coupled to or separated from the sawtooth shape of the fixed guide shaft by moving the mover coupled to the guide shaft in the lateral direction, thereby controlling the back and forth movement of the mover. The through hole of the mover 6 through which the guide shaft 10 passes is set to be slightly movable left and right.

Fig. 2 is a more enlarged view of a portion where the guide shaft 10 and the mover 6 are coupled to each other, where the saw tooth formed on the guide shaft and the saw tooth formed on the mover are combined.

Fig. 3 shows an example of a mover shape to which an elastic element for returning to the original position against the movement of the backrest is coupled to one side of the mover 6. Fig. A saw tooth shape that engages with the saw tooth shape formed on the guide shaft 10 is shown inside the through hole of the mover 6 that engages with the guide shaft 10. [

Fig. 4 is an exploded view showing the mover 6 combined with the guide shaft 10 and the constitution of an elastic member for displacing this fluctuation when the mover moves left and right.

5 shows an example in which a configuration having a sawtooth shape that engages with the tooth shape of the guide shaft 10 is formed on the outer side of the mover 6. Fig.

Fig. 6 shows the left component of the chair, out of the serrated components that engage with the guide shaft 10 on the outside of the mover.

7 is an example in which, in addition to the configuration shown in Fig. 1, the configuration in which the left and right movement of the backrest is returned by a structure coupled to the left side mover of the chair, and which is further coupled to the right side mover of the chair to fix the left and right movement of the chair.

8 is an exploded view of the configuration of the backrest left and right movement fixing apparatus of Fig. 7;

9: FIG. 9 is an example showing that the guide shaft 10 can be formed in the middle of the right and left of the chair.

The back plate (1) of the chair is coupled to the backrest structure (2) supporting the back plate (1).

The guide shaft 10 is fixed to the seat 15 or the chair frame, which is a fixed part of the chair, in the front-back direction of the chair. The guide shaft 10 is coupled with a mover 6 which is coupled with the guide shaft 10 and is movable in the front and rear direction of the chair.

The lower ends of the backrest structure 2 are engaged with and supported by the mover 6.

A saw-tooth shape is formed in the lower portion of the guide shaft 10.

The mover 6 is provided with a through hole having a margin to the extent that it can be slightly moved in the left and right direction of the chair.

The mover 6 is formed with a sawtooth shape that is engaged with a sawtooth formed on the guide shaft 10 in the through hole or on the outside of the mover.

The position of the sawtooth shape formed on the guide shaft 10 can be formed at any portion of the guide shaft. However, it is appropriate to form it on the lower side or the side surface of the guide shaft 10 in consideration of the problem of wear, the cosmetic appearance, and the efficiency of operation. In the example shown in Figs. 1, 2, 5, and 7, the above-described drawings are formed at about 4 to 5 o'clock direction, and Fig. 9 is an example formed at the side.

1, 2, 4, and 7, the shape of the guide shaft 10 may be a square, a pentagon, a hexagon, or the like; In the above-described drawings, the through hole is formed in the mover 6, but a part of the mover may be combined with the guide shaft 10 by making a part of the guide shaft 10 in the shape of a parser guide groove. You may.

1, 2, 5, and 7, the guide shaft 10 is configured as a seat under one of the fixed objects, but it may be a fixed object even if it is not a seat. For example, it can be fixed to the chair frame below the seat.

As shown in FIG. 9, only one guide shaft 10 may be provided in the middle of the seat instead of the left and right sides of the seat. In this case, the left and right widths of the guide shaft 10 may be made wider, 101 may be further configured to ensure stability. That is, the guide shaft 10 having a saw tooth shape on the side surface of the guide shaft 10 is formed only in the middle of the seat plate, and the auxiliary guide shaft 101 is further formed around the guide shaft 10 to increase the stability. It is appropriate that the mover 6 to be coupled to the first and second movable members 10 and 10 is also formed to be long.

1, 2, 7, and 9 show a state in which the saw tooth formed on the guide shaft 10 and the saw tooth formed on the mover 6 are engaged. In this state, when the chair user leans against the back and applies a rearward force to the backrest, the backrest is not pushed backward. 5, the saw tooth formed on the guide shaft 10 and the saw tooth formed on the stopper 19 including the mover 6 are engaged, so that the back is not pushed backward.

The shape of the teeth formed on the guide shaft 10 and the mover and engaged with each other may be a square shape, a shape that can be combined with a pentagon, a round shape, or the like, and the term "sawtooth shape"

Now, in the backrest of the above-exemplified configuration, when the right side of the backrest is pushed in the leftward direction, the backrest is pushed to the right side of the drawing. This results in a state in which the saw tooth shape of the guide shaft 10 and the saw tooth shape formed on the mover 6 are separated from each other. Thus, in this state, the backrest can be moved back and forth of the chair to be positioned at a desired position.

In use, the user can hold the mover 6 or the backrest structure 2 while pressing the right side of the backrest, and move the backrest forward and backward to the desired position.

4, the mover 6 is restored to its original position by the restoring spring 66 configured to resist the left-right fluctuation of the mover 6. The restoring spring 66, The tooth shape of the guide shaft 10 and the saw tooth shape formed on the mover 6 are inserted again, and the motion of the back is fixed.

The restoration device including the restoration spring 66 is shown on the left side of the chair in Figs. 1, 5, and 7.

More simply, it is possible to constitute an elastic element which fixes one end to the mover and presses the guide shaft 10 at the other end, or the wheel may be coupled to the wheel so as to press the guide shaft 10 to reduce friction.

In the above example, the compression spring is configured to perform this action, but it may be constituted by a tension spring or may be made to act on tension and compression.

Such a restoring spring may be an elastic rubber or an elastic plate as an example of an elastic material that performs a restoring action, and the name of the restoring spring of the present invention includes them.

In Figs. 1 and 2, the saw tooth shape which is engaged with the guide shaft 10 and restrains the rearward movement of the mover 6 is formed in the through hole of the mover 6 to which the mover and the guide shaft are coupled as shown in Fig. As shown in FIG. The stopper 19 formed on the outer side of the mover can be integrally formed with the mover or can be formed into a part having a sawtooth shape and can be coupled to the mover.

The above-described chair according to the present invention can be variously modified and embodied within the scope of the claims, the detailed description of the invention and the attached drawings, and is within the scope of the present invention.

On the right side of the chair of Fig. 7, the backrest is formed by a saw tooth formed on the guide shaft 10 and the mover 6, and the movement of the back and forth of the chair is fixed.

8 is an exploded view of such a configuration. The following will be described below.

Thereby forming a coupling hole into which the pin 62 can be inserted adjacent to the shaft hole in which the mover 6 and the guide shaft 10 are engaged. The insertion of the pin into the coupling hole does not allow the mover 6 to move left and right by filling the clearance between the guide shaft 10 and the mover.

Therefore, remove this pin to push the backrest to the left. The front end of the pin is provided with an inclined jaw, and the tip of the pusher 61 is engaged with the inclined jaw inclination. Therefore, when the pusher 61 is pressed, the movement of the tip of the pusher pushes the pin along the inclination of the pin, so that the pin is pulled out from the slider 6. [

Now, when the backrest of the chair continues to be pushed to the left side of the chair, the toothed shape coupling of the guide shaft 10 and the mover 6, which fixed the back and forth movement of the backrest, is released so that the backrest can move to the front and rear of the chair, So that it can be adjusted. In FIG. 8, the pin 62 is long, but the portion acting as shown in FIG. 7 is a part, and only the inclined portion of the front end is inserted or pulled out.

Then, when the pushing force of the pusher 61 is released, the pin is inserted again into the fitting hole of the mover by the restoring force of the spring 63 again.

These arrangements shown in Figs. 7 and 8 are supplementary to stabilize the fixation for the left and right motion of the backrest.

More simply, the simple configuration in which the pin 62 and the pusher, which fill the clearance space with the guide shaft 10 coupled to the shaft 6 of the mover 6, can be formed in a simple shape and configured as a seesaw switch.

The configuration of the present invention may have a jolt or a saw tooth shape when a force is applied before the teeth are completely engaged as compared with the prior art of the present invention. However, the structure of the present invention is simple in construction compared with the prior art of the present invention, and is free from the problem of durability that was worried about in the prior art since there is no part to be worn by being combined with each other.

Although the advantages and disadvantages of the respective products can be obtained, the present invention is added to the present invention because the worry of durability is reduced in the actual merchandising process, easiness of production and economical efficiency arise, and it is thought that it is more advantageous for actual product launch.

1: back plate 2: backrest structure 6: mover
61: pusher 62: pin 63: spring
64: pressure terminal 65: stopper 66: spring
10: guide shaft 14: cover 15:
16: (Up and down movement of the backrest) Stopper 18: Bracket 19: Stopper

Claims (4)

A chair backrest which is movable in the front and rear direction of the chair, including a guide shaft 10 fixed to the seat back and fixed to the seat in a chair seat plate or a chair frame and a mover moving in the front- In the chair,
The left and right lower portions of the backrest structure 2 for supporting the back plate 1 of the backrest are coupled to the mover, a sawtooth shape is formed on the guide shaft 10, and a sawtooth shape Wherein the backrest coupled to the mover is moved to the left and right of the chair so that the guide shaft and the mover can be engaged or disengaged to control the back and forth movement of the backrest. The mover 6 that engages with the guide shaft 10 forms a shaft hole so that the backrest can move left and right with respect to the guide shaft 10 and the shape of the tooth formed on the guide shaft 10 and the shape of the mover The forward and backward movement of the backrest is restricted in a state in which the serrations formed on the shaft hole are engaged with each other;
Wherein the backrest is movable back and forth along the guide shaft (10) when the backrest is pushed to the left and right and the engagement is released. The mover 6 that engages with the guide shaft 10 forms a shaft hole so that the backrest can move left and right with respect to the guide shaft 10 and the shape of the tooth formed on the guide shaft 10 and the shape of the mover In a state in which the serrations formed on the outside of the shaft are engaged with each other, movement of the backrest in the front-back direction of the chair is restricted; Wherein the backrest is movable back and forth along the guide shaft (10) when the backrest is pushed to the left and right and the engagement is released. The apparatus of claim 1, wherein a combined pin guide shaft (10) and a pin that fills the shaft clearance portion of the mover (6) are coupled to limit the leftward and rightward movement of the mover (6) Wherein the backrest moving chair comprises a pusher.
KR1020150087041A 2015-06-18 2015-06-18 Chair of Move Back KR101680974B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150087041A KR101680974B1 (en) 2015-06-18 2015-06-18 Chair of Move Back

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150087041A KR101680974B1 (en) 2015-06-18 2015-06-18 Chair of Move Back

Publications (1)

Publication Number Publication Date
KR101680974B1 true KR101680974B1 (en) 2016-11-29

Family

ID=57706396

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150087041A KR101680974B1 (en) 2015-06-18 2015-06-18 Chair of Move Back

Country Status (1)

Country Link
KR (1) KR101680974B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180022333A (en) * 2016-08-24 2018-03-06 유태경 Chair having variable backrest module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200416754Y1 (en) 2006-02-15 2006-05-26 주식회사 바우 Rotating chair having a movable backrest in front and in rear
KR101167816B1 (en) 2011-07-25 2012-07-25 박영호 Backrest Chair
KR101243018B1 (en) 2011-10-04 2013-03-12 박영호 Chair

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200416754Y1 (en) 2006-02-15 2006-05-26 주식회사 바우 Rotating chair having a movable backrest in front and in rear
KR101167816B1 (en) 2011-07-25 2012-07-25 박영호 Backrest Chair
KR101243018B1 (en) 2011-10-04 2013-03-12 박영호 Chair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180022333A (en) * 2016-08-24 2018-03-06 유태경 Chair having variable backrest module

Similar Documents

Publication Publication Date Title
KR101171234B1 (en) Headrest Moving Device
US7334841B2 (en) Angle adjustment mechanism for lumbar support of chair backrest
US6957862B2 (en) Chair with a seat-inclination adjusting device
JP6667693B2 (en) Elastic reclining mechanism and freely adjustable swivel chair
KR20120098037A (en) A driving device for a motor vehicle which combines the brake and the accelerator into one stick
KR101837386B1 (en) neckrest of head rest for vehicle
KR101680974B1 (en) Chair of Move Back
KR200448295Y1 (en) The back of a chair move to the front and back
KR100972233B1 (en) Frame chair
KR20140065308A (en) Headrest controlling apparatus of a chair
KR101482738B1 (en) The sliding device is equipped with a chair
KR20100066202A (en) Apparatus for controlling a horizontal movement of an armrest
KR101722317B1 (en) Chair of Move Back
KR101729041B1 (en) Chair arm
KR101722316B1 (en) Chair of Move Back
KR101680973B1 (en) Chair of Move Back
TWI580381B (en) Chair armrest adjustment mechanism module
KR101044067B1 (en) Headrest Moving Device
KR101274582B1 (en) Secondary backrest of chair
JP2017086369A (en) Chair
JP4234253B2 (en) Height adjustment device such as armrest of chair
JP2007130266A (en) Locking mechanism of locking device
KR101092785B1 (en) Chair
TWI572305B (en) Recliner
TWI622370B (en) Up and down adjustment structure of the headrest of the chair

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20191125

Year of fee payment: 4