KR101680974B1 - Chair of Move Back - Google Patents
Chair of Move Back Download PDFInfo
- 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
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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
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
The left and right lower portions of the
In the above chair, the
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
In the above chair, the
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
The
Fixation of the backrest movement is achieved by engaging with a saw tooth formed on the
As a result, the backrest coupled to the
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
Fig. 2 is a more enlarged view of a portion where the
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
Fig. 4 is an exploded view showing the
5 shows an example in which a configuration having a sawtooth shape that engages with the tooth shape of the
Fig. 6 shows the left component of the chair, out of the serrated components that engage with the
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
The back plate (1) of the chair is coupled to the backrest structure (2) supporting the back plate (1).
The
The lower ends of the
A saw-tooth shape is formed in the lower portion of the
The
The
The position of the sawtooth shape formed on the
1, 2, 4, and 7, the shape of the
1, 2, 5, and 7, the
As shown in FIG. 9, only one
1, 2, 7, and 9 show a state in which the saw tooth formed on the
The shape of the teeth formed on the
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
In use, the user can hold the
4, the
The restoration device including the
More simply, it is possible to constitute an elastic element which fixes one end to the mover and presses the
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
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
8 is an exploded view of such a configuration. The following will be described below.
Thereby forming a coupling hole into which the
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
Now, when the backrest of the chair continues to be pushed to the left side of the chair, the toothed shape coupling of the
Then, when the pushing force of the
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
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)
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.
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.
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 |
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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)
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KR (1) | KR101680974B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180022333A (en) * | 2016-08-24 | 2018-03-06 | 유태경 | Chair having variable backrest module |
Citations (3)
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 |
-
2015
- 2015-06-18 KR KR1020150087041A patent/KR101680974B1/en active IP Right Grant
Patent Citations (3)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180022333A (en) * | 2016-08-24 | 2018-03-06 | 유태경 | Chair having variable backrest module |
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