KR101582692B1 - Pumping ball type seat height holding device - Google Patents
Pumping ball type seat height holding device Download PDFInfo
- Publication number
- KR101582692B1 KR101582692B1 KR1020090111464A KR20090111464A KR101582692B1 KR 101582692 B1 KR101582692 B1 KR 101582692B1 KR 1020090111464 A KR1020090111464 A KR 1020090111464A KR 20090111464 A KR20090111464 A KR 20090111464A KR 101582692 B1 KR101582692 B1 KR 101582692B1
- Authority
- KR
- South Korea
- Prior art keywords
- brake
- wedge
- clutch
- roller
- spring
- Prior art date
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- Braking Arrangements (AREA)
Abstract
The pumping ball type seat according to the present invention has a height and a height of the gear teeth. The mounting knob 3, which transmits the rotational force from an external handle lever, is input at a position deviated from the center of the shaft. The force transmission path using the frictional force is formed coaxially with the shaft center to reduce the related parts of the clutch so as to simplify the constitution and to facilitate the workability of the parts. The rotation of the brake drum 1 and the brake wedge The gear shaft 12 engaged with the sector gear of the seat side link can be rotated to adjust the seat height by releasing the wedge action of the brake roller 14 located between the seat side link 11 and the seat side link.
Ball, pumping device, axial direction
Description
BACKGROUND OF THE
Generally, a seat, which is a seat for a chair installed in front of and behind the inside of a vehicle, has various kinds of convenience devices for the comfort of a passenger.
For example, in addition to a sliding function that can be adjusted by pushing and pulling the seat back and forth depending on the body shape of a passenger, a reclining function is provided to adjust the inclination of the seat with respect to the seat backrest, ) Function.
In addition to this, a seat height fixing device for adjusting the height of the seat so as to adjust the height of the seat to the passenger is also provided.
The above-mentioned seat height and style value have various methods according to the operation method thereof. For example, there is a pumping device called a pumping ball type.
The pumping device is a method of adjusting the seat height by transmitting a force toward a link mounted on a seat by using an operation of UP or DOWN of a lever provided on the seat side.
This pumping device is largely composed of a clutch unit and a brake unit, which serves to transmit an external input to the link side of the seat, and the brake unit has a fixed state .
As described above, due to the nature of transmitting the external input, the clutch unit effectively transmits the external input to the link side to keep the operation smooth, so that a large number of parts are associated with each other for effective force transmission to have a structurally complicated configuration.
For example, this type of clutch unit has a roller type clutch unit having a force transmission path in the circumferential direction for releasing the braking force to the brake unit side.
When the roller type clutch unit is pushed in a circumferential direction by a roller arranged coaxially with rotation through a lever, the roller causes a wedge action with the inner wall of the clutch drum which receives the roller to rotate the clutch drum give.
The rotation of the clutch drum as described above is switched by the rotational force of the brake wedge.
The brake wedge rotates the spline-coupled gear shaft to bring the link side sector gear engaged with the gear provided in the gear shaft into a forced rotation state, and the height of the link is controlled by the rotation of the sector gear.
However, since the roller type clutch unit adopts a path for transmitting the force in the circumferential direction about the shaft center when releasing the brake unit, the complexity of the structure is further increased and the workability is difficult, which causes the cost increase.
In addition, this force transmission path structure has to be formed with a contact surface for force transmission as a circumferential surface, and it is necessary to provide a separate relative part for increasing the number of parts, which causes a further increase in cost increase.
Accordingly, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a method of transmitting a rotational force in a circumferential direction by releasing a braking action on a brake side by forming a force transmission path using a frictional force- The present invention provides a pumping ball type seat height fixing device that simplifies the configuration by reducing the clutch-related parts.
It is another object of the present invention to provide a pumping ball type seat height fixing device that can simplify the structure of the clutch-related parts by using a force transmission path having a shaft center and a coaxial shape, .
To achieve the above object, according to the present invention, there is provided a pumping ball type seat height fixing apparatus, comprising: a brake drum coupled to a rear cover to form an internal space;
A mounting knob for transmitting a rotational force applied from an external handle lever to an inside of the brake drum at a position off the axis of the brake drum;
A clutch unit which forms a friction force by rotation through the mounting knob and is rotated with a force transmission path formed coaxially with the axis center of the brake drum;
A brake unit for rotating the sector gear of the seat side link to adjust the seat height by releasing the wedge action with respect to the brake drum by rotation through the clutch unit side;
And a control unit.
The mounting knob is positioned on a pair of guide slots formed on both sides of the center position of the brake drum.
The brake drum and the rear cover each have a shaft hole drilled around the shaft, thereby positioning the clutch unit and the brake unit on the shaft center line.
The clutch unit includes a spring stopper fixed to the brake drum from the inside of the brake drum, a spring for returning to the initial state after operation, a spring for deforming the spring when rotated through the mounting knob, And a clutch retainer having a ball in contact with the clutch wedge plate for output to the unit side.
The spring is composed of a clutch spring elastically supported between the spring stopper and the clutch retainer, and a lever spring elastically supported by the spring stopper and the clutch wedge plate, and is positioned toward a region bisecting the axis center of the spring stopper.
The clutch wedge plate is provided with a pair of wedge wings protruding to positions opposed to each other at a rim, a fixing hole drilled to sandwich a mounting knob on both sides of a shaft hole at a central position, and a ball groove formed on one side.
Wherein the clutch retainer comprises a shaft hole boss protruding from both sides of a shaft hole and a pair of retainer wings protruding from the rim with an interval therebetween, and a ball is fixed concentrically with respect to the shaft hole boss, And the pair of retainer wings are formed at an angle smaller than a pair of wedge wings of the clutch wedge plate.
Wherein the brake unit includes a clutch drum having a shaft hole formed at a center thereof and at least one protruding protrusion formed on one side thereof and a circumferential groove formed concentrically with the shaft hole on one side on which the protrusion leg is not formed, A brake wedge formed with at least one protruded wedge boss and a gear having an output gear engaged with the link side sector gear, one end of the brake wedge penetrating through the brake wedge is coupled to the brake drum side, And at least one brake roller which is located on the brake wedge side and generates a braking force by a frictional force against the brake drum.
Wherein the brake wedge forms a roller locating surface for locating the brake roller on both sides of the wedge boss, the roller locating surfaces extending from the outer circumferential surface of the body of the brake wedge to a restraint section surface, And the wedge action with the brake roller is realized by reducing the interval between the brake wedges.
The brake roller comprises a pair of first and second roller shafts and an insert spring located between the first and second roller shafts and pushing the first roller shaft and the second roller shaft, respectively.
The brake roller releases the brake state by the wedge principle using the protruding leg of the clutch drum, and in the released state, the brake roller rotates the wedge boss of the brake wedge.
The brake roller compresses the insert spring located between the first and second roller shafts when the brake wedge is rotated toward the brake wedge, and the insert springs are located on both side surfaces of the wedge boss of the brake wedge that is not in contact with the first and second roller shafts Lt; / RTI >
The distance between the first and second roller housings is narrower than the width of the protruding legs of the clutch drum.
According to the present invention, since the clutch-side force transmission path for releasing the brake-side brake action is formed coaxially with the shaft center, there is an effect of simplifying the structure of the clutch- It is possible to simplify and simplify the processability, and it is possible to reduce the cost as a whole.
In addition, since the operating force of the handle lever is inputted at a position deviated from the center of the shaft, the present invention also has the effect of greatly improving the gear shaking phenomenon of the internal parts.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The present invention is not limited to these embodiments.
1 is an exploded perspective view of a pumping ball type seat height fixing device.
A
The handle lever operation applied to the present embodiment is an UP / DOWN method and rotates counterclockwise at the time of the handle lever up (UP) and clockwise at the time of the handle lever down (DOWN).
The
Further, the
The
As described above, the
Fig. 2 shows a configuration of the clutch unit A according to the present embodiment.
As shown in the figure, the clutch unit A includes a
The
The spring stopper 4 forms a pair of
The
The
The
The
The
Fig. 3 (A) shows an assembly diagram sequentially coupled to the
As shown in the figure, when the
3 (B) shows the assembly state between the
The
4 is a perspective view of the
As shown in the figure, the
The
The
Fig. 5 shows a locking state of the clutch 6 assembled sequentially.
As shown in the figure, the
6 (A) shows a block diagram of the brake unit B side according to the present embodiment.
As shown in the figure, the brake unit B includes a
A
The
The
The
The
6 (B) shows a
The
The
The
7 shows the installation state of the
The first and
The
8 shows an assembled cross section of the pumping ball type seat height fixing device according to the present embodiment.
As shown in the figure, a pair of mounting
When the clutch unit A is assembled, the
The shaft holes 4a, 7a and 8a are formed in the
The
The
When the brake unit B is assembled, the
The
The
The
Fig. 9 shows a partial operating state of the clutch unit A side when the seat height fixing device according to the present embodiment is operated by force via the handle lever.
As shown, when the
Up or down of the handle lever is only reverse in the rotational direction and all operations are the same, so the operation direction of the handle lever is not described in detail.
The movement of the
The
Further, the
The movement of the
Fig. 5 shows a state in which the
Namely, the
10 shows the operating states of the
As shown in the figure, the
The
11, the rotation of the
Since the
When the load applied to the handle lever is released after the seat height adjustment is completed, the elastic restoring force of the
The restoration of the initial state of the clutch unit A side is performed by rotating the
The initial state restoration of the brake unit B side is performed by rotating the
That is, when the load through the
Since the return of the
As described above, the pumping ball type seat according to the present embodiment is heightened, and the mounting
Further, since the
1 is an exploded perspective view of a pumping ball type seat height fixing apparatus according to the present invention.
Fig. 2 is an exploded perspective view of the clutch unit of Fig.
Figs. 3 (A) and 3 (B) are partial coupling diagrams of the clutch unit according to Fig. 2
Fig. 4 is a perspective view of an assembled perspective view of the clutch unit according to the present invention,
Fig. 5 is a view showing a locking state of the clutch unit according to the present invention
6 (A) and 6 (B) show the brake unit side configuration diagram of Fig. 1
Fig. 7 is an assembled cross-sectional view of the brake unit according to Fig. 6
8 is an assembled cross-sectional view of a pumping ball type seat height fixing apparatus according to the present invention
Fig. 9 is an operational state diagram of a pumping ball type seat height fixing apparatus according to the present invention
Fig. 10 is an operational sectional view of the brake unit according to the present invention
Fig. 11 is a view showing the rotation state diagram of Fig.
Description of the Related Art
1:
1b, 2b:
2: Rear cover 2c: Insertion boss
3: Mounting knob 4: Spring stopper
4b, 4bb: stop leg 5: spring
5a:
6: Clutch
7:
7c: Fixing
8: clutch retainer 8aa: shaft hole boss
8b, 8bb: retainer wing
9: ball 10: clutch drum
10b: protruding
11:
11b:
11d:
12:
12b:
13: Output gear
14: Brake roller
14a and 14b: first and
Claims (18)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090111464A KR101582692B1 (en) | 2009-11-18 | 2009-11-18 | Pumping ball type seat height holding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090111464A KR101582692B1 (en) | 2009-11-18 | 2009-11-18 | Pumping ball type seat height holding device |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110054712A KR20110054712A (en) | 2011-05-25 |
KR101582692B1 true KR101582692B1 (en) | 2016-01-05 |
Family
ID=44363864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020090111464A KR101582692B1 (en) | 2009-11-18 | 2009-11-18 | Pumping ball type seat height holding device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR101582692B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101361520B1 (en) * | 2012-07-30 | 2014-02-12 | (주)케이엠앤아이 | Pumping device for Adjusting Seat Height and Adjusting Seat Height Apparatus for Motor Vehicle having the Same |
KR101421927B1 (en) * | 2013-06-26 | 2014-07-23 | 대원정밀공업(주) | Pumping device for vehicle seat |
KR20140053073A (en) * | 2014-04-14 | 2014-05-07 | 주식회사 오스템 | Pumping device for vehicle seat |
KR101947535B1 (en) | 2017-12-26 | 2019-02-13 | 현대트랜시스(주) | Seat pumping device for vehicle |
CN110145556B (en) * | 2018-02-13 | 2024-03-15 | 福州明芳汽车部件工业有限公司 | Improved braking mechanism of seat height adjusting device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007308050A (en) | 2006-05-19 | 2007-11-29 | T S Tec Kk | Height adjustment device of seat for automobile |
WO2008038943A1 (en) * | 2006-09-26 | 2008-04-03 | Das Corporation | Pumping device for seat cushion of vehicle |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100490313B1 (en) * | 2003-07-12 | 2005-05-18 | 주식회사다스 | Pumping device of seat for vehicle |
KR100821099B1 (en) * | 2006-09-26 | 2008-04-08 | 주식회사다스 | Pumping device for seat cushion of vehicle |
-
2009
- 2009-11-18 KR KR1020090111464A patent/KR101582692B1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007308050A (en) | 2006-05-19 | 2007-11-29 | T S Tec Kk | Height adjustment device of seat for automobile |
WO2008038943A1 (en) * | 2006-09-26 | 2008-04-03 | Das Corporation | Pumping device for seat cushion of vehicle |
Also Published As
Publication number | Publication date |
---|---|
KR20110054712A (en) | 2011-05-25 |
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