KR101072790B1 - Round recliner for vehicle seat - Google Patents
Round recliner for vehicle seat Download PDFInfo
- Publication number
- KR101072790B1 KR101072790B1 KR1020100010914A KR20100010914A KR101072790B1 KR 101072790 B1 KR101072790 B1 KR 101072790B1 KR 1020100010914 A KR1020100010914 A KR 1020100010914A KR 20100010914 A KR20100010914 A KR 20100010914A KR 101072790 B1 KR101072790 B1 KR 101072790B1
- Authority
- KR
- South Korea
- Prior art keywords
- gear
- cam
- lock
- receiving portion
- holder
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
- B60N2/235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
- B60N2/2356—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls
- B60N2/2362—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls rotatably movable
Abstract
The present invention relates to a round recliner for a vehicle seat, wherein the holder (110) has a plurality of spring receiving portions (118) formed therebetween in a plurality of adjacent lock gear guide protrusions (113) in the circumferential direction. The back surface of the spring receiving portion forms an emboss 116 protruding to the outer surface of the holder, wherein the plurality of spring receiving portions 118 are connected to the cam receiving portion 114, respectively located on the inside, The spring accommodating part 118 is configured to elastically press the spring 140 to accommodate and support the one end 142 of the spring to rotate the cam 130, and to accommodate the gearing of the sector gear. The gear receiving portion is characterized by having a clearance of 0.03 to 0.05 [mm] in the radial direction between the gear and the gear. As a result, it is possible to lower the weight and increase the space efficiency while improving the safety of the round recliner for the vehicle seat.
Description
BACKGROUND OF THE
A round recliner is a device for adjusting the angle of rotation of the seatback relative to the seat cushion, mounted on the seat, in particular the seat of the vehicle.
Conventional round recliners have been made in terms of high strength and high rigidity that can withstand external shocks for the safety of the occupants, and accordingly, the components constituting the round recliner are also designed to be large and thick.
However, in recent years, as technologies for achieving eco-friendliness and low fuel consumption have been proposed, a method for reducing weight while improving safety for vehicle seats has been required.
For the same reason, as the demand for compact cars is increasing, the demand for a practical round recliner that can occupy less installation space while improving safety is increasing.
SUMMARY OF THE INVENTION An object of the present invention is to provide a round recliner for a vehicle seat that can reduce weight and improve space efficiency while improving safety.
In order to achieve the above object, the present invention provides a support rim formed on an outer circumference, a gear receiving portion adjacent to the inner side of the support rim, and a plurality of lock gear guide protrusions disposed at a predetermined interval in the circumferential direction adjacent to the inside of the gear receiving portion. A holder having a cam housing formed inwardly of the plurality of lock gear guide protrusions; A plurality of lock gears accommodated in the holder and slid by the plurality of lock gear guide protrusions; A cam accommodated in the cam accommodating portion and configured to pressurize and slide the plurality of lock gears during rotation; A sector gear which is geared to be accommodated in the gear receiving portion, extends inwardly of the gear and covers the plurality of lock gears and the cam to cover the cams, and which is locked or unlocked by the sliding plurality of lock gears; In the round recliner for a vehicle seat comprising: a holder having a plurality of spring receiving portion is formed between each of the plurality of lock gear guide protrusions adjacent in the circumferential direction, the back surface of each spring receiving portion is the holder An emboss projecting to an outer surface of the spring, and the plurality of spring receiving portions are connected to the cam receiving portions respectively located inside, and each spring receiving portion receives and supports a spring so that one end of each spring rotates the cam. And the gear receiving portion of the holder to elastically press to accommodate the gear of the sector gear. It provides a round recliner for a vehicle seat, characterized in that a has a clearance of less than 0.05 [mm] in the radial direction between.
Here, the cam receiving portion of the holder is formed to extend the cam guide portion forming the same layer as the plurality of spring receiving portion, the cam is accommodated in the cam receiving portion and the body portion to interact with the plurality of lock gear, Is formed extending from the body portion is received and rotatably supported by the cam guide portion and has a plurality of working projections are arranged at regular intervals in the circumferential direction, each of the spring is one end of the plurality of working projections in the rotation direction It can also be configured to elastically press.
In this case, the sector gear is formed of the first sector gear layer made of the gear, the second sector gear layer made of the cover portion and a third formed of a plurality of engaging projections which are formed at regular intervals in the circumferential direction protruding to the upper surface of the cover portion; The sector gear layer may be formed so that the thickness of the sector gear corresponds to the length from the bottom surface of the first sector gear layer to the top surface of the third sector gear layer.
In addition, the protruding thicknesses of the plurality of lock gear guide protrusions may be configured to be smaller than the thicknesses of the plurality of lock gears that are sliding guided thereby.
In addition, the cam has a plurality of operating projections for pressing and sliding the plurality of lock gears on the outer circumferential surface, the lock gear is guided by the operating projections and reciprocally slide between the locking position and the unlocking position, the locking The pressing protrusion for contacting and pressurizing the actuating protrusion at the time of positioning may be additionally formed.
In addition, the gear gear of the sector gear is formed with an inner tooth on the inner circumferential surface, the lock gear is formed on the outer circumferential surface of the outer gear engaging with the inner tooth of the gear at the locking position, the outer gear of the lock gear is formed with the inner tooth of the gear gear It may be formed to engage with the internal teeth on the outside of the pitch circle.
In this case, the outer edge of the lock gear may be additionally protruded from the round end portion for reinforcing the end portion thereof, and may engage with the inner tooth through the round end portion.
The sector gear may be heat-treated steel, and the holder may be made of ordinary carbon steel, which is lower in strength than the sector gear.
According to the round recliner for a vehicle seat according to the present invention as described above, the thickness of the holder can be reduced by designing the spring receiving portion of the holder inside the emboss, and the sector gear is also connected to the gears, the cover portion, and the engaging projections. The thickness can be reduced by forming two layers. Accordingly, the overall thickness of the round recliner for the vehicle seat can be reduced, thereby achieving weight reduction and improved space efficiency.
In addition, the clearance between the gear receiving portion of the holder and the gear is set to a minimum within the range where the rotation of the gear is not disturbed, so that the gear is caught by the holder side lock gear guide protrusion during impact from the outside. As a result, the sudden rotation of the sector gear can be prevented and safety can be achieved.
In addition, the thickness of the lock gear guide protrusion is made thinner than the lock gear, so that the lock gear guide protrusion is depressed due to the pressurization of the lock gear during a strong external impact, thereby preventing the seat back from being caught by the sudden rotation of the sector gear. Can be planned.
1 and 2 are an exploded perspective view of the vehicle seat round recliner according to an embodiment of the present invention when viewed from the top and bottom, respectively;
3 is a cross-sectional view showing a coupling state of the round recliner for a vehicle seat of FIG. 1;
4 and 5 are a plan view for explaining the operation of the round recliner for a vehicle seat of FIG.
6 is a perspective view showing one component of a conventional round recliner for a vehicle seat;
7 is a bottom view showing a modification of the round recliner for a vehicle seat according to the embodiment of the present invention;
FIG. 8 is an enlarged view of a portion A of FIG. 7;
9 and 10 are partial plan views showing another modified example of the round recliner for a vehicle seat according to the embodiment of the present invention.
As shown in FIGS. 1 and 2, a round recliner for a vehicle seat according to an exemplary embodiment of the present invention includes a
The
Inside the
A
The plurality of
The
When the
On the other hand, referring to Figure 2, the
At this time, referring to Figure 1, the
That is, the accommodating function of the
In addition, each
Accordingly, the
According to the conventional round recliner, the spring for rotating the cam is arranged to be laminated on the upper surface or the lower surface of the cam, so that the overall thickness of the recliner is designed to be thick. The formation of 118 may reduce the overall thickness of the recliner.
In addition, conventionally designed to rotate the cam with a single spring, the size of the spring, especially the upper and lower width is formed so large that the thickness of the recliner for accommodating it is designed to be thick, according to the present invention a plurality of
Here, a cam guide portion 119-1 forming the same layer as the plurality of
On the contrary, the
The plurality of
Each
On the other hand, the
Referring to FIGS. 1 to 3, the factors for determining the thickness of the
That is, the thickness of the
According to the conventional round recliner, a sector gear layer has to be additionally formed in the sector gear to accommodate a spring provided on the upper surface of the cam. However, according to the present invention, such a sector gear layer is unnecessary. The thickness of the
In addition, in the conventional round recliner, a separate sector gear layer (L in FIG. 6) is formed on the
On the other hand, in the vehicle seat round recliner 100 according to an embodiment of the present invention, the protrusion thickness t1 of the lock
On the contrary, according to the present invention in which the protruding thickness t1 of the lock
The upper and
Operation of the vehicle seat round recliner 100 having the above configuration is made as shown in FIGS. 4 and 5.
4 shows the recliner 100 in a locked state, in which the
At this time, when the
Meanwhile, as shown in FIG. 7, the round recliner 100 for a vehicle seat according to an exemplary embodiment of the present invention includes a cam (not shown) to reciprocally slide the plurality of lock gears 120 between a locked position and an unlocked position. 130 and a plurality of actuating
Accordingly, the
That is, the external shock transmitted through the
In the vehicle seat round recliner 100 according to the embodiment of the present invention, as shown in area A of FIG. 7 or the like, the
FIG. 8 is an enlarged view of the area A, wherein the
Here, the
For example, the
According to this, by reinforcing the strength of the
With the reinforcement of the round end R as described above, the
On the other hand, the round recliner 100 for a vehicle seat according to an embodiment of the present invention, as shown in Figure 9, the
Accordingly, the
The conventional recliner is designed to secure about 0.16 [mm] as the clearance, whereas the present invention is designed to be narrowly.
According to such a dimensional relationship setting between the
If, as in the prior art, the clearance gap d between the
In the present embodiment, the clearance d between the
In addition, in order to further increase the biting effect on the
To this end, the
The round recliner 100 for a vehicle seat described above is just one embodiment for better understanding of the present invention, and thus the scope of the present invention should not be considered as being limited thereto.
The scope of the invention to the technical scope is defined by the claims and equivalents described below.
100:
111: support rim 112: gear receiving portion
113: lock gear guide projection 114: cam receiving portion
116: emboss 118: spring receiving portion
119-1: Cam guide portion 120: Lock gear
121: pressure projection 122: outer teeth
130: cam 132: body portion
133: working projection 134: working projection
140: spring 150: sector gear
151: gear 152: engaging projection
153: cover portion 154: internal tooth
160: cover housing
Claims (8)
The holder has a plurality of spring receiving portion is formed between each of the plurality of lock gear guide protrusions adjacent in the circumferential direction, the back surface of each spring receiving portion forms an emboss protruding to the outer surface of the holder,
The plurality of spring receiving portions are respectively connected to the cam receiving portions positioned inside, springs are received and supported at each spring receiving portion to elastically press one end of each spring to rotate the cam,
The gear receptacle of the holder for accommodating the gear of the sector gear has a clearance within 0.05 [mm] in the radial direction between the gear and the gear.
The cam receiving portion of the holder extends the cam guide portion forming the same layer as the plurality of spring receiving portions,
The cam is accommodated in the cam receiving portion and the body portion interacting with the plurality of lock gears, a plurality of extending from the body portion is received and rotatably supported in the cam guide portion and arranged in a circumferential direction at a predetermined interval Has the process of action,
Each said spring has said one end part elastically pressurizing any one of the said several actuating protrusion in a rotation direction, The round recliner for vehicle seat | seats.
The sector gear may include a first sector gear layer formed of the gear, a second sector gear layer formed of the cover part, and a third sector gear formed of a plurality of coupling protrusions protruding from an upper surface of the cover part and disposed at regular intervals in the circumferential direction. And a thickness of the sector gear corresponds to a length from a lower surface of the first sector gear layer to an upper surface of the third sector gear layer.
The protruding thickness of the plurality of lock gear guide protrusions is smaller than the thickness of the plurality of lock gears that are slid guided thereby.
The cam is provided with a plurality of operating projections for pressing and sliding the plurality of lock gear on the outer peripheral surface,
The lock gear is guided by the corresponding operation protrusion and reciprocally slides between the locking position and the unlocking position, wherein the locking protrusion for contacting and pressurizing the operating protrusion at the locking position is further protrudingly formed. Recliner.
The gear of the sector gear is formed in the inner peripheral surface,
The lock gear is formed on the outer circumferential surface of the outer gear that meshes with the inner tooth of the gear at the locking position,
The outer gear of the lock gear is formed so as to engage with the inner tooth on the outside of the pitch circle formed with the inner tooth of the gear rim.
And the outer edge of the lock gear additionally protrudes from the round end portion for reinforcement of the end portion, and engages with the inner tooth through the round end portion.
The sector gear is a heat-treated steel,
The holder is a round carbon steel recliner, characterized in that the carbon steel is lower than the sector gear strength.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100010914A KR101072790B1 (en) | 2010-02-05 | 2010-02-05 | Round recliner for vehicle seat |
PCT/KR2011/000264 WO2011096653A2 (en) | 2010-02-05 | 2011-01-13 | Round recliner for car seat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100010914A KR101072790B1 (en) | 2010-02-05 | 2010-02-05 | Round recliner for vehicle seat |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110091201A KR20110091201A (en) | 2011-08-11 |
KR101072790B1 true KR101072790B1 (en) | 2011-10-14 |
Family
ID=44355908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020100010914A KR101072790B1 (en) | 2010-02-05 | 2010-02-05 | Round recliner for vehicle seat |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR101072790B1 (en) |
WO (1) | WO2011096653A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107757435B (en) * | 2017-11-27 | 2020-03-06 | 延锋安道拓座椅机械部件有限公司 | Discontinuous angle adjuster |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002010850A (en) | 2000-06-29 | 2002-01-15 | Fuji Kiko Co Ltd | Vehicle seat reclining device |
JP2002223882A (en) | 2001-01-31 | 2002-08-13 | Fuji Kiko Co Ltd | Equipment for reclining seat for vehicle |
KR100627732B1 (en) | 2005-08-18 | 2006-09-25 | 주식회사다스 | Reclining device of seat for vehicle |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070105552A (en) * | 2006-04-26 | 2007-10-31 | 주식회사 오스템 | Seat recliner for vehicle with high strength |
-
2010
- 2010-02-05 KR KR1020100010914A patent/KR101072790B1/en active IP Right Grant
-
2011
- 2011-01-13 WO PCT/KR2011/000264 patent/WO2011096653A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002010850A (en) | 2000-06-29 | 2002-01-15 | Fuji Kiko Co Ltd | Vehicle seat reclining device |
JP2002223882A (en) | 2001-01-31 | 2002-08-13 | Fuji Kiko Co Ltd | Equipment for reclining seat for vehicle |
KR100627732B1 (en) | 2005-08-18 | 2006-09-25 | 주식회사다스 | Reclining device of seat for vehicle |
Also Published As
Publication number | Publication date |
---|---|
WO2011096653A2 (en) | 2011-08-11 |
WO2011096653A3 (en) | 2011-10-27 |
KR20110091201A (en) | 2011-08-11 |
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