CN110359794B - Door check link device for vehicle - Google Patents
Door check link device for vehicle Download PDFInfo
- Publication number
- CN110359794B CN110359794B CN201810802058.6A CN201810802058A CN110359794B CN 110359794 B CN110359794 B CN 110359794B CN 201810802058 A CN201810802058 A CN 201810802058A CN 110359794 B CN110359794 B CN 110359794B
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- China
- Prior art keywords
- rib
- check link
- guide wall
- door
- shoe
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/20—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide
- E05C17/203—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide concealed, e.g. for vehicles
Abstract
The present invention is directed to providing a door check link device for a vehicle, in which the weight of the check link can be reduced. A door check link assembly for a vehicle includes a housing, a check link, a first shoe, a second shoe, a first resilient member, and a second resilient member received in the housing and biasing the second shoe toward a second braking surface. The limit link has a first rib, a second rib, a third rib and a fourth rib, the first rib includes a first braking surface, the first rib protrudes toward the first guide wall, the second rib includes a second braking surface, the second rib protrudes toward the second guide wall, the third rib is located below the first rib, the third rib protrudes toward the first guide wall, the fourth rib is located above the second rib, the fourth rib protrudes toward the second guide wall, the first guide wall slides along the first rib and the third rib, and the second guide wall slides along the second rib and the fourth rib.
Description
The application is a divisional application of a Chinese patent application with the application date of 2017, 2 and 21, the invention name of the application is 'door limiting connecting rod device for vehicle' and the application number of 201710092456.9.
Technical Field
The present invention relates to a door check link device for a vehicle, which applies a check force to a door in a door opening/closing operation and adjusts a fully opened position of the door.
Background
The door check link device is disposed between a side door and a main body of the vehicle. The door check link device applies a check force to the door in the door opening/closing operation, and the door check link device adjusts a full opening position of the door. The conventional door check link device as described in JP2012-207390a has: a limiting connecting rod; a housing attached to the door; a pair of upper and lower shoes (shoe) accommodated in the housing; and an elastic member (elastic body). The stopper link is formed by covering a metal core plate with a cover member made of synthetic resin. The check link is pivotally connected at one end thereof to the vehicle body. In the door opening/closing operation, the upper and lower shoes slide along the braking surfaces formed on the upper and lower surfaces of the cover member. The resilient member biases the upper and lower shoes toward the respective braking surfaces. When the upper and lower shoes are in contact with the recessed portion of the braking surface, a restraining force is applied to the door in the door opening/closing operation. When the housing abuts against a stopper provided at the other end of the check link, the fully opened position of the door is adjusted.
As disclosed in JP2012-207390a, it has been necessary to reduce the weight for a stopper link composed of two members, i.e., a metal core plate and a synthetic resin cover member covering the entire surface of the core plate. In particular, with respect to the side surfaces of the cover member formed in simple vertical surfaces parallel to each other, there is no room for weight reduction, and no special measures are taken to reduce the weight of that portion of the door check link device.
Disclosure of Invention
The present invention is directed to providing a door check link device for a vehicle, in which the weight of the check link can be reduced.
The door check link apparatus for a vehicle of the present invention includes:
a housing secured to a door or body of the vehicle, the housing having an aperture;
a check link extending through the aperture in a longitudinal direction, wherein the check link is pivotably connected to the door or the body at one end of the check link, the check link having a stopper disposed at the other end of the check link, and the stopper adjusting a fully opened position of the door in which the check link is moved in the longitudinal direction relative to the housing in a door opening/closing operation, the check link further including first and second braking surfaces having undulating surfaces in the longitudinal direction, and the first and second braking surfaces facing opposite directions from each other;
a first shoe accommodated in the housing, wherein the first shoe has a first sliding portion that slides along the first braking surface and a first guide wall that extends from the first sliding portion toward the second braking surface;
a second shoe accommodated in the housing, wherein the second shoe has a second sliding portion that slides along the second braking surface and a second guide wall that extends from the second sliding portion toward the first braking surface on a side opposite to the first guide wall with respect to the check link;
a first resilient member housed in the housing and biasing the first shoe toward the first braking surface; and
a second resilient member received in the housing and biasing the second shoe toward the second braking surface.
The check link has a first rib, a second rib, a third rib, and a fourth rib, the first rib including the first detent surface and the first rib protruding toward the first guide wall, the second rib including the second detent surface and the second rib protruding toward the second guide wall, the third rib being located below the first rib and the third rib protruding toward the first guide wall, the fourth rib being located above the second rib and the fourth rib protruding toward the second guide wall, wherein the first guide wall slides along the first rib and the third rib and the second guide wall slides along the second rib and the fourth rib.
According to the door check link apparatus of the present invention, the first shoe and the second shoe can be stably moved along the braking surface, and the weight of the check link can be reduced.
The above and other objects, features and advantages of the present invention will become apparent from the following description with reference to the accompanying drawings which illustrate examples of the present invention.
Drawings
FIG. 1 is a rear perspective view showing the right side of a vehicle equipped with a door check link assembly in accordance with the present invention;
FIG. 2 is an exploded perspective view showing the door check link assembly;
FIG. 3 is a plan view showing the door check link assembly when the door is opened;
FIG. 4 is an enlarged longitudinal cross-sectional view taken along line IV-IV in FIG. 3;
FIG. 5 is an enlarged longitudinal cross-sectional view taken along line V-V in FIG. 3;
FIG. 6 is an enlarged perspective view showing the portion of the check link attached to the hinge;
fig. 7 is a longitudinal sectional view taken along line VII-VII in fig. 6;
FIG. 8 is a longitudinal cross-sectional view taken along line VIII-VIII in FIG. 3;
FIG. 9 is an enlarged plan view showing the upper shoe and the compression coil spring fitted into the upper shoe;
FIG. 10 is a rear view showing the positional relationship between the check link and the guide walls of the upper and lower shoes when the upper and lower shoes are located on the recessed portion of the braking surface;
FIG. 11 is a rear view showing the positional relationship between the check link and the guide walls of the upper and lower shoes when the upper and lower shoes are on the projection of the braking surface;
FIG. 12 is an enlarged longitudinal cross-sectional view taken along line XII-XII in FIG. 3;
FIG. 13 is an enlarged longitudinal cross-sectional view taken along line XIII-XIII in FIG. 3; and is
Fig. 14 is a diagram showing a step of positioning a core plate in a mold.
List of reference numerals
1-door limiting connecting rod device
2 support
2a holding sheet
3 hinge pin
4 limiting connecting rod
5 casing
6 casing cover
7 boot
8 lower boot
9a, 9b compression coil spring (elastic member)
10 core plate
11 cover member
12-hole
13 bolt
14. 15 through hole
16 positioning hole
17a-17d grooves
18a, 18b upper rib
19a, 19b center rib
20a, 20b lower rib
21 vertical guide post
22 guide post
23 guide post
24 shaft hole
25 annular projection
26 vertical protrusions
27 protrusion
41a, 41b braking surfaces
71. 81 sliding part
72. 82 guide wall
73. 83 mating holes
74 guide shaft
75. 85 protrusion
84 guide shaft
100 stopper
101 stopper part
102 surface of stopper
103 trench
104 inclined rib
105 vertical opening
106 transverse opening
107 trench
111 vertical opening
191 thick part
192 thinner portion
411 nose part
412 recess
413 inclined part
414 flat portion
415 boss part
B body
D door
H-shaped hinge
H1 hinge axis
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Each direction described below is based on the vehicle to which the check link arrangement is mounted. As indicated by arrows in fig. 1, the longitudinal direction of the vehicle is referred to as the "front-rear direction", and the left-right direction of the vehicle is referred to as the "inside-outside direction". Further, the vertical direction of the vehicle is simply referred to as "vertical direction".
As shown in fig. 1 to 4, the door check link device 1 is disposed between a side surface of a main body B of the vehicle and a door D. The door D is pivotally mounted to a side surface of the main body B of the vehicle by means of an upper and lower pair of hinges H, each having a vertical hinge shaft H1. The door check link device 1 applies a check force to the door D in a door opening/closing operation of the door D, holds the door D at a half open or full open position, and adjusts the full open position of the door D.
The door limit link device 1 includes: a limit connecting rod 4; a metal case 5 fixed in the door D; a metal case cover 6 covering the rear opening of the case 5; a pair of upper and lower shoes 7 and 8 accommodated in the housing 5; and a pair of upper and lower compression coil springs 9a and 9b serving as elastic members. The stopper link 4 is mounted at its front end (one end) to the upper and lower retaining pieces 2a and 2a of the bracket 2 via a vertical hinge pin 3 such that the stopper link 4 can pivot in the inward and outward direction. The bracket 2 is fixed to the main body B. The upper shoe 7 and the lower shoe 8 are made of a hard synthetic resin (e.g., polyacetal resin). In the door opening/closing operation of the door D, the upper shoe 7 and the lower shoe 8 slide along the upper surface and the lower surface of the check link 4, respectively. The upper coil spring 9a is held by the upper shoe 7 at one end thereof and is pressed against the inner surface of the housing 5 at the other end thereof. The lower coil spring 9b is held by the lower shoe 8 at one end thereof and is pressed against the inner surface of the housing 5 at the other end thereof. Therefore, the upper coil spring 9a biases the upper shoe 7 toward the later-described upper braking surface 41a, and the lower coil spring 9b biases the lower shoe 8 toward the later-described lower braking surface 41b of the stopper link 4. After the upper and lower shoes 7, 8 and the compression coil springs 9a, 9b are installed in the housing 5, the opening of the housing 5 is covered with the housing cover 6. An elastic member such as rubber may be used instead of the compression coil springs 9a, 9 b.
As shown in fig. 4 and 5, the restraining link 4 is constituted by a strip-shaped metal core plate 10 (refer to fig. 14) and a cover member 11 made of a hard synthetic resin (e.g., polyamide resin). The entire surface of the core plate 10 is covered with the cover member 11 by insert molding. The stopper 100 that adjusts the fully opened position of the door D is integrally formed with the cover member 11 at the rear end (the other end) of the cover member 11. A first wave-like braking surface 41a and a second wave-like braking surface 41b are formed on the upper surface and the lower surface of the cover member 11, respectively, in addition to the front end of the cover member 11 and the stopper 100. In other words, the check link 4 includes the first and second braking surfaces 41a and 41b that are wavy, extend in the longitudinal direction, and face in opposite directions to each other. The check link 4 further includes first and second side surfaces 42a and 42b, the first and second side surfaces 42a and 42b being orthogonal to the first and second braking surfaces 41a and 41b and extending in the longitudinal direction. First and second braking surfaces 41a and 41b and first and second side surfaces 42a and 42b are formed on the surface of the cover member 11.
The stopper 100 includes a pair of upper and lower stopper portions 101 and 101 protruding upward and downward, respectively. The front surface of the stopper portion 101 forms stopper surfaces 102, and the case cover 6 abuts against these stopper surfaces 102. The stopper 100 has a shape vertically tapered from the upper and lower ends of the stopper portion 101 to the rear end as viewed in a longitudinal view.
As shown in fig. 2 and 4, a vertically elongated rectangular aperture 12 allowing the check link 4 other than the stopper 100 to move therethrough is formed on the side wall of the housing 5 and at the center of the housing cover 6. The check link 4 extends through the aperture 12 in the longitudinal direction and moves relative to the housing 5 in the longitudinal direction in the door opening/closing operation of the door D. The housing 5 to which the housing cover 6 is attached is fixed inside the door D by means of bolts 13. In the door opening operation of the door D, when the housing 5 moves toward the rear end (the other end) of the stopper link 4 along with the door D, the rear surface of the housing cover 6 abuts against the stopper surface 102 of the stopper 100, and the fully opened position of the door D is adjusted (refer to fig. 3 and 4). The upper stopper surface 102 and the lower stopper surface 102 are formed as arc-shaped curved surfaces that project forward as viewed from above. This allows the stopper surface 102 to be in line contact with the housing cover 6 on both sides of the stopper surface 102, and prevents uneven loads from being applied to the stopper 100.
As shown in fig. 4 and 14, a plurality of through holes 14 are formed in the core plate 10 in the longitudinal direction of the core plate 10. The synthetic resin material is filled in the through-hole 14 by insert molding. The through-hole 14 where the stopper 100 is formed has a non-circular shape having a large opening area and elongated in the longitudinal direction, thereby allowing a large amount of synthetic resin material to be filled in the through-hole 14 so as to provide the stopper 100 with high peel strength. At the front end of the core plate 10 where the hinge pin 3 is inserted, a through hole 15 is formed by a burring process, and the through hole 15 is covered with a synthetic resin material. Positioning holes 16 for positioning the front end of the core plate 10 in the mold are formed in the vicinity and in the rear of the through hole 15.
As shown in fig. 2, 4 and 5, upper shoes 7 and lower shoes 8, which are arranged in point symmetry and have the same shape, sandwich the stopper link 4 from above and below. The upper shoe (first shoe) 7 includes a first sliding portion 71 and a first guide wall 72. The first sliding portion 71 slides along the upper first braking surface 41a of the check link 4. The first guide wall 72 projects downward from the outer edge (left edge in fig. 5) of the first slide portion 71 toward the second stopper surface 41b, and slides along the first side surface 42a (left surface in fig. 5) of the cover member 11.
The lower shoe (second shoe) 8 includes a second sliding portion 81 and a second guide wall 82. The second sliding portion 81 slides along the lower second braking surface 41 b. The second guide wall 82 protrudes upward from the inner edge (right edge in fig. 5) of the second sliding portion 81 toward the first stopper surface 41a, and slides along the second side surface 42b (right surface in fig. 5) of the cover member 11.
The surfaces of the sliding portions 71, 81 of the upper and lower shoes 7, 8 that slide along the braking surfaces 41a, 41b are formed substantially in the shape of protruding arcs that allow the sliding surfaces 71, 81 to smoothly slide on the wavy braking surfaces 41a, 41 b. Similarly, the surfaces of the guide walls 72, 82 of the upper and lower shoes 7, 8 that slide along the first and second outer side surfaces 42a, 42b of the cover member 11 are formed substantially in a protruding arc shape. The guide wall 72 extends downward to a position slightly above the midpoint in the vertical direction of the stopper link 4, and the guide wall 82 extends upward to a position slightly below the midpoint in the vertical direction of the stopper link 4 (refer to fig. 10).
As shown in fig. 2, 4, 5 and 9, annular bottomed fitting holes 73, 83 are formed on the upper surface of the upper shoe 7 and the lower surface of the lower shoe 8, respectively. The lower end of the upper compression coil spring 9a and the upper end of the lower compression coil spring 9b are fitted into the fitting holes 73, 83, respectively. The guide shaft 74 extending upward and the guide shaft 84 extending downward are provided at the centers of the fitting holes 73, 83, respectively. Four axial (vertical) protrusions 75 and four axial (vertical) protrusions 85 are provided at equal intervals in the circumferential direction on the outer surfaces of the guide shafts 74, 84, respectively, and the inner surfaces of the compression coil springs 9a, 9b are in contact with the axial protrusions 75, 85, respectively. Therefore, the axial protrusions 75, 85 stably hold the ends of the compression coil springs 9a, 9b within the fitting holes 73, 83, limit play between the coil springs 9a, 9b and the fitting holes 73, 83 in the radial direction, and thereby allow the upper shoe 7 and the lower shoe 8 to smoothly move in the longitudinal direction in the door opening/closing operation of the door D.
The coil springs 9a, 9b have closed loop ends ground to flat surfaces, which increase the contact area with the upper and lower shoes 7, 8 and the contact area with the housing 5 and prevent the coil springs 9a, 9b from tilting. This also helps to stabilise the movement of the upper and lower shoes 7, 8 in the longitudinal direction.
The vertical thickness of the cover member 11 of the limit link 4 is larger (e.g., about twice as large) than the width of the cover member 11 in the inward and outward direction, except for the front portion of the limit link 4 and the stopper 100, and the wavy detent surfaces 41a, 41b (having alternating recesses and protrusions) are formed on portions of the upper and lower surfaces of the cover member 11. A plurality of (three in this embodiment) protruding portions 411 and a plurality of (three in this embodiment) recessed portions 412 are alternately arranged on the braking surfaces 41a, 41b in the front-rear direction (longitudinal direction). A pair of upper and lower inclined portions 413 and a pair of upper and lower flat portions 414 are continuously formed in front of the braking surfaces 41a, 41b of the cover member 11 of the stopper link 4. The thickness of the flat portion 414 is smaller than the width in the inward and outward direction. The inclined portion 413 and the flat portion 414 have the same width. A boss portion 415 pivotally supported by the bracket 2 is provided at a front end of the check link 4 formed continuously with the flat portion 414. The boss portion 415 is thicker than the flat portion 414. The check link 4 preferably has a large vertical thickness along the braking surfaces 41a, 41b, which results in a large inclination angle (e.g., about 15 °) of the inclined portion 413 and facilitates the closing operation of the door.
A plurality of (four in this embodiment) upper and lower grooves 17a to 17d are formed on two surfaces ( side surfaces 42a, 42b) of the cover member 11, which are orthogonal to the surface of the cover member 11 on which the braking surfaces 41a, 41b are formed. In other words, the upper and lower grooves 17a to 17d are provided on the first side surface 42a facing the vehicle outside and the second side surface 42b facing the vehicle inside. The weight of the check link 4 can be reduced due to the grooves 17a to 17 d. The grooves 17a to 17d are vertically (in the direction of the thickness of the cover member 11) spaced apart, and extend continuously in the front-rear direction (longitudinal direction). Due to the grooves 17a, 17c, three protrusions extending in the front-rear direction are formed on the first side surface 42a of the cover member 11. These projections and grooves 17a, 17c are alternately arranged in a row in the vertical direction, and these projections form ribs 18a, 19a, 20 a. Due to the grooves 17b, 17d, three protrusions extending in the front-rear direction are formed on the second side surface 42b of the cover member 11. These projections and grooves 17b, 17d are alternately arranged in a row in the vertical direction, and these projections form ribs 18b, 19b, 20 b.
The first upper rib 18a includes a first stopper surface 41a and protrudes toward the first guide wall 72. The second lower rib 20b includes a second stopper surface 41b and protrudes toward the second guide wall 82. The fifth upper rib 18b includes the first stopper surface 41a and protrudes toward the second guide wall 82. The sixth lower rib 20a includes the second stopper surface 41b and protrudes toward the first guide wall 72. The third center rib 19a is located below the first upper rib 18a and above the sixth lower rib 20a (between the first upper rib 18a and the sixth lower rib 20a in the vertical direction), and protrudes toward the first guide wall 72. The fourth center rib 19b is located below the fifth upper rib 18b and above the second lower rib 20b (between the fifth upper rib 18b and the second lower rib 20b in the vertical direction), and protrudes toward the second guide wall 82.
The first and fifth upper ribs 18a and 18b, the third and fourth center ribs 19a and 19b, and the sixth and second lower ribs 20a and 20b have respective common center planes in the vertical direction. The first side surface 42a has a first groove 17a and a third groove 17c extending in the longitudinal direction. The second side surface 42b has a second groove 17b and a fourth groove 17d extending in the longitudinal direction. The first groove 17a is located between the first upper rib 18a and the third central rib 19 a. The second groove 17b is located between the fourth central rib 19b and the second lower rib 20 b. The third groove 17c is located between the third center rib 19a and the sixth lower rib 20 a. The fourth groove 17d is located between the fifth upper rib 18b and the fourth center rib 19 b.
The base (upper base) of the first guide wall 72 of the upper shoe 7 slides along the first upper rib 18 a. The base (lower base) of the second guide wall 82 of the lower shoe 8 slides along the second lower rib 20 b. The end (the other end) of the first guide wall 72 of the upper shoe 7 slides along the third central rib 19 a. The end (the other end) of the second guide wall 82 of the lower shoe 8 slides along the fourth center rib 19 b. In other words, the first guide wall 72 slides along the first side surface 42a through the first groove 17a, and the second guide wall 82 slides along the second side surface 42b through the second groove 17 b.
The first upper rib 18a, the fifth upper rib 18b, the sixth lower rib 20a, and the second lower rib 20b have the same thickness, and the third central rib 19a and the fourth central rib 19b are thicker than the first upper rib 18a, the fifth upper rib 18b, the sixth lower rib 20a, and the second lower rib 20b (refer to fig. 5 and 10). The first, fifth, sixth, and second upper ribs 18a, 18b, 20a, and 20b have a constant vertical thickness in the longitudinal direction, and the vertical thickness of the third and fourth center ribs 19a and 19b varies depending on the wave pattern of the stopper link 4. The center faces of the third center rib 19a and the fourth center rib 19b in the thickness direction are substantially equidistant from the first braking surface 41a and the second braking surface 41 b.
As a result, as shown in fig. 10, the upper and lower grooves 17a to 17d have a vertical wavy pattern in the longitudinal direction, which corresponds to the wavy pattern of the upper and lower braking surfaces 41a and 41 b. The upper and lower surfaces of the third and fourth center ribs 19a and 19b are also wavy, and therefore the third and fourth center ribs 19a and 19b have thicker portions 191 and thinner portions 192 that are continuous and alternately arranged in the longitudinal direction (longitudinal direction). As a result, the vertical distance from the upper braking surface 41a to the upper surfaces (surfaces facing the first braking surface 41 a) of the third and fourth center ribs 19a and 19b and the vertical distance from the lower braking surface 41b to the lower surfaces (surfaces facing the second braking surface 41 a) of the third and fourth center ribs 19a and 19b are substantially constant in the longitudinal direction. In other words, the distance between the surface of the first groove 17a on the second braking surface 41b side and the first braking surface 41a is constant in the longitudinal direction, and the distance between the surface of the second groove 17b on the first braking surface 41a side and the second braking surface 41b is constant in the longitudinal direction.
As shown in fig. 5, 10 and 11, the first guide wall 72 of the upper shoe 7 projects downward to a position where the first guide wall 72 overlaps the third central rib 19a in side view, and the second guide wall 82 of the lower shoe 8 projects upward to a position where the second guide wall 82 overlaps the fourth central rib 19b in side view. Regardless of the positions of the sliding surfaces 71, 81 of the upper shoe 7 and the lower shoe 8 on the braking surfaces 41a, 41b, the guide walls 72, 82 always remain in contact with the third central rib 19a and the fourth central rib 19b without derailing from the third central rib 19a and the fourth central rib 19b with their overlapping lengths kept constant. As a result, the guide walls 72, 82 and the third and fourth center ribs 19a, 19b do not need to be oversized, and further weight reduction of the stopper link 4 can be achieved.
The guide wall 72 of the upper shoe 7 slides along two portions, i.e., the first upper rib 18a and the third central rib 19 a. The guide wall 82 of the lower shoe 8 slides along two portions (i.e., the second lower rib 20b and the fourth central rib 19 b). Therefore, the guide walls 72, 82 can be stably guided by the first side surface 42a and the second side surface 42 b. Therefore, the guide walls 72, 82 do not need to be oversized (from the base to the end), and reduction in size and weight of the upper shoe 7 and the lower shoe 8 can be achieved.
Further, since the portions of the cover member 11 forming the braking surfaces 41a, 41b have a thickness larger than the width, it is possible to secure a long vertical dimension for the guide walls 72, 82 of the upper and lower shoes 7, 8. The upper shoe 7 and the lower shoe 8 are guided by the guide walls 72, 82 sliding along the ribs at two vertically spaced portions. Therefore, the upper shoe 7 and the lower shoe 8 can stably slide along the upper surface and the lower surface of the check link 4 in the door opening/closing operation of the door D.
When the door D is closed as shown by the two-dot chain line in fig. 4, the sliding surfaces 71, 81 of the upper shoe 7 and the lower shoe 8 are located in the vicinity of the front end of the stopper link 4, and sandwich the flat portion 414 from above and below. When the door D is opened in this state, the up-down sliding surfaces 71, 81 move to the stopper surfaces 41a, 41b after riding over the inclined portion 413 of the stopper link 4 and engage with the recessed portion 412 to hold the door D at the intermediate position. When the door D is further opened from the intermediate position to the fully opened position, as shown by the solid line in fig. 4, the housing cover 6 abuts against the stopper surface 102 of the stopper 100, and the fully opened position of the door D is adjusted. The sliding surfaces 71, 81 are engaged in the rearmost recesses 412 of the braking surfaces 41a, 41b so as to hold the door D at the fully open position. As described above, the large inclination angle of the inclined portion 413 of the position restricting link 4 contributes to the door closing operation of the door D.
As shown in fig. 3 and 13, two grooves 103 are formed on the upper and lower inclined surfaces of the stopper 100, and the entire stopper 100 including the stopper portion 101 is reinforced by inclined ribs 104 formed between the grooves 103. The vertical openings 105 extend from the bottom of the groove 103 to the upper and lower surfaces of the core plate 10. The vertical openings 105 are arranged opposite to each other via the core plate 10. The upper and lower surfaces of the core plate 10 are exposed in the upper and lower vertical openings 105.
As shown in fig. 10 and 12, lateral openings 106 are formed on both sides of the rear end of the stopper 100 in the inward and outward direction. The lateral openings 106 face each other in the inward and outward direction via the core plate 10, and the lateral openings 106 are opened at the rear end surface of the core plate 10 such that the rear end surface of the core plate 10 is exposed to the lateral openings 106. The lateral openings 106 are formed to be continuous with vertical grooves 107, and these vertical grooves 107 are formed on both surfaces of the stopper portion 101 in terms of the inward-outward direction. When the core plate 10 is positioned in a not-shown mold and the cover member 11 is formed of synthetic resin by insert molding, the vertical openings 105, the lateral openings 106, and the vertical grooves 107 are formed.
As shown in fig. 2, 3 and 4, a pair of upper and lower vertical openings 111 that open at the upper and lower surfaces of the core plate 10 are formed at the middle of the cover member 11 in the longitudinal direction. When the intermediate portion of the core plate 10 is positioned in the mold by means of a pair of upper and lower guide posts, a vertical opening 111 is formed. However, when the core plate 10 is positioned at both ends of the core plate 10 in the longitudinal direction, the vertical opening 111 at the middle of the cover member 11 may be omitted.
Fig. 14 shows an example when the core plate 10 is positioned in a cavity of a side-slip mold (not shown) designed as two vertically separable halves. When the rear end of the core plate 10 formed with the stopper 100 is positioned in the mold, the ends of two upper vertical guide columns 21 that are vertically movable and spaced apart in the width direction abut against the upper surface of the rear end (the other end) of the core plate 10, and the ends of two lower vertical guide columns 21 that are also vertically movable and spaced apart in the width direction abut against the lower surface of the rear end of the core plate 10. Further, the lower ends of the two vertical guide posts 22 abut against the side surfaces of the rear end of the core plate 10. Thus, the rear end of the core plate 10 is prevented from moving in the vertical and inward-outward directions and is positioned in the mold.
The front end (one end) of the core plate 10 is positioned in the mold by means of a pair of vertically movable upper and lower guide posts 23. At the ends of the guide posts 23 on the core plate 10 side, the guide posts 23 have enlarged flanges, and these enlarged flanges are engaged with the positioning holes 16 (refer to fig. 4) from above and below at the front end of the core plate 10. Thus, the core plate 10 is prevented from moving in the vertical direction, in the inward and outward direction, and in the longitudinal direction, and is also prevented from rotating in the horizontal plane, and is positioned in the mold.
When neither the groove 103 nor the inclined rib 104 is provided on the inclined surface of the stopper 100, the core plate 10 may be positioned by a pair of upper and lower guide posts 21, the upper and lower guide posts 21 abutting respectively against the upper and lower surfaces at the center of the rear end of the core plate 10 in terms of the width direction. The guide columns 22 that position the core plate 10 in the mold in the inward and outward direction can be moved from below so that the guide columns 22 abut against the side surfaces at the rear end of the core plate 10. Further, as shown by the two-dot chain line in fig. 14, two laterally movable guide posts 22 may be used instead of the vertically movable guide posts 22. The ends of the laterally movable guide posts 22 may abut against the side surfaces of the core plate 10 from a direction orthogonal to the side surfaces.
In this way, when the core plate 10 is formed by insert molding from synthetic resin in a state where the rear end of the core plate 10 is positioned by the six guide posts 21, 22, in the cover member 11, at the rear end of the stopper 100, the following are formed as described above: vertical openings 105 opened at upper and lower surfaces of the core plate 10; a lateral opening 106 that opens at a side surface of the core plate 10; and a vertical trench 107 formed to be continuous with the opening 106.
As shown in fig. 6 to 8, on the inner surface of the shaft hole 24 where the boss portion 415 is engaged with the hinge pin 3, a central annular projection 25 and a plurality of (six in this embodiment) axially extending vertical projections 26 are formed. The inner diameter of the annular projection 25 is equal to the diameter of the inscribed circle of the vertical projection 26. The inner diameter of the annular projection 25 and the diameter of the inscribed circle of the vertical projections 26 are slightly smaller than the outer diameter of the hinge pin 3. The hinge pin 3 is inserted into the shaft hole 24 of the boss portion 415 by press-fitting, and the lower end of the hinge pin 3 is caulked so that the stopper link 4 is supported by the upper and lower retaining pieces 2a of the bracket 2. As shown in fig. 8, the outer surface of the hinge pin 3 is in contact with the inner surfaces of the annular projection 25 and the vertical projection 26, and a slight gap is formed between the shaft hole 24 and the hinge pin 3. This arrangement reduces the pivoting resistance of the check link 4, eliminates the play between the shaft hole 24 and the hinge pin 3, and makes a smooth opening/closing operation of the door D possible.
On each of the upper and lower surfaces of the boss portion 415 around the shaft hole 24, a plurality of (six in this embodiment) hemispherical protrusions 27 are provided at equal intervals. The upper and lower protrusions 27 are in point contact with the upper and lower holding pieces 2a of the holder 2 as shown in fig. 8. This eliminates the play between the boss portion 415 and the bracket 2, and prevents unpleasant sound in the door opening/closing operation of the door.
As described above, according to this embodiment of the door check link device 1, the check link 4 having a reduced weight can be obtained due to the upper and lower grooves 17a to 17d continuously extending in the longitudinal direction and the remaining ribs 18a to 20b along which the guide walls 72, 82 of the upper and lower shoes 7, 8 slide.
The guide wall 72 of the upper shoe 7 slides stably on the first upper rib 18a and the third central rib 19a at two points, i.e., at the base and at the ends (at the upper and lower portions), and the guide wall 82 of the lower shoe 8 slides stably on the fourth central rib 19b and the second lower rib 20b at two points, i.e., at the ends and at the base (at the upper and lower portions). Therefore, the size and weight of the upper shoe 7 and the lower shoe 8 can be reduced without having to make the guide walls 72, 82 have an excessively large vertical dimension.
The upper and lower grooves 17a to 17d are formed in a wavy shape in the vertical direction in conformity with the shape of the upper and lower braking surfaces 41a, 41b, and the distance from the upper braking surface 41a to the upper surface of the center ribs 19a, 19b and the distance from the lower braking surface 41b to the lower surface of the center ribs 19a, 19b are substantially constant. Therefore, regardless of the positions of the sliding surfaces 71, 81 of the upper and lower shoes 7, 8 on the braking surfaces 41a, 41b, the guide walls 72, 82 always slide on the central ribs 19a, 19b with their vertical overlap length kept constant without derailing from the central ribs 19a, 19 b. As a result, further weight reduction of the check link 4 can be achieved without the need for an excessively large vertical dimension of the center ribs 19a, 19 b.
Further, the vertical thickness of the portion of the cover member 11 where the braking surfaces 41a and 41b are formed is larger than the width of the cover member 11. The vertical dimension of the guide walls 72, 82 of the upper and lower shoes 7, 8 can be increased and the guide walls 72, 82 slide over the ribs at two vertically separated points while being guided by the same ribs. As a result, the upper shoe 7 and the lower shoe 8 can be stably moved along the upper and lower surfaces of the check link 4 in the door opening/closing operation of the door D.
Embodiments of the present invention have been described. Various changes and modifications can be made as described below without departing from the spirit and scope of the invention.
In the embodiment, three ribs 18a, 19a, 20a (18b, 19b, 20b) and two grooves 17a, 17c (17b, 17d) are provided on each side surface of the cover member 11. However, for example, when the vertical dimension of the cover member 11 is larger than that of the embodiment, two or more grooves and three or more ribs may be provided on each side surface. In this case, the vertical dimension of the guide walls 72, 82 of the upper shoe 7 and the lower shoe 8 may be set to a length such that the ends of the guide walls 72, 82 overlap with the rib closest to the end rib.
The boss portion 415 of the check link 4 may be pivotally mounted to the door D, and the housing 5 and the housing cover 6 may be disposed on the main body B.
Claims (6)
1. A door check link assembly for a vehicle, comprising:
a housing secured to a door or body of the vehicle, the housing having an aperture;
a check link extending through the aperture in a longitudinal direction, wherein the check link is pivotably connected to the door or the body at one end of the check link, the check link having a stopper disposed at the other end of the check link, and the stopper adjusting a fully opened position of the door in which the check link is moved in the longitudinal direction relative to the housing in a door opening/closing operation, the check link further including first and second braking surfaces having undulating surfaces in the longitudinal direction, and the first and second braking surfaces facing opposite directions from each other;
a first shoe accommodated in the housing, wherein the first shoe has a first sliding portion that slides along the first braking surface and a first guide wall that extends from the first sliding portion toward the second braking surface;
a second shoe accommodated in the housing, wherein the second shoe has a second sliding portion that slides along the second braking surface and a second guide wall that extends from the second sliding portion toward the first braking surface on a side opposite to the first guide wall with respect to the check link;
a first resilient member housed in the housing and biasing the first shoe toward the first braking surface; and
a second resilient member housed in the housing and biasing the second shoe toward the second braking surface,
wherein the check link has a first rib, a second rib, a third rib, and a fourth rib, the first rib includes the first detent surface, and the first rib protrudes toward the first guide wall, the second rib includes the second detent surface, and the second rib protrudes toward the second guide wall, the third rib is located below the first rib, and the third rib protrudes toward the first guide wall, the fourth rib is located above the second rib, and the fourth rib protrudes toward the second guide wall, wherein the first guide wall slides along the first rib and the third rib, and the second guide wall slides along the second rib and the fourth rib, and
wherein in a side view, the first guide wall of the first shoe projects downward to a position where the first guide wall overlaps the third rib, and the second guide wall of the second shoe projects upward to a position where the second guide wall overlaps the fourth rib.
2. The door check link apparatus for a vehicle of claim 1, wherein a central plane of the third and fourth ribs is substantially equidistant from the first and second braking surfaces in terms of a thickness of the third and fourth ribs.
3. The door check link assembly for a vehicle of claim 1, wherein the check link includes a fifth rib and a sixth rib, the fifth rib including the first detent surface and the fifth rib projecting toward the second guide wall, the sixth rib including the second detent surface and the sixth rib projecting toward the first guide wall.
4. The door check link device for a vehicle according to claim 1, wherein a distance between a surface of the third rib on the first brake surface side and the first brake surface is constant in the longitudinal direction, and a distance between a surface of the fourth rib on the second brake surface side and the second brake surface is constant in the longitudinal direction.
5. The door check link device for a vehicle according to any one of claims 1 to 4, wherein the check link has a metal core plate and a cover member made of synthetic resin, the cover member covering the core plate, and the cover member having the first braking surface and the second braking surface.
6. The door check link apparatus for a vehicle of any one of claims 1 to 4, wherein the check link is symmetrical about a central axis orthogonal to the first and second braking surfaces.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016088423A JP6578548B2 (en) | 2016-04-26 | 2016-04-26 | Automotive door check link device |
| JP2016-088423 | 2016-04-26 | ||
| CN201710092456.9A CN107313668B (en) | 2016-04-26 | 2017-02-21 | Door limiting linkage for vehicle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710092456.9A Division CN107313668B (en) | 2016-04-26 | 2017-02-21 | Door limiting linkage for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110359794A CN110359794A (en) | 2019-10-22 |
| CN110359794B true CN110359794B (en) | 2021-07-16 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810802058.6A Active CN110359794B (en) | 2016-04-26 | 2017-02-21 | Door check link device for vehicle |
| CN201710092456.9A Active CN107313668B (en) | 2016-04-26 | 2017-02-21 | Door limiting linkage for vehicle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710092456.9A Active CN107313668B (en) | 2016-04-26 | 2017-02-21 | Door limiting linkage for vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6578548B2 (en) |
| CN (2) | CN110359794B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086821A (en) * | 2017-11-30 | 2018-05-29 | 丰业迪睦斯（芜湖）汽车部件有限公司 | Improved side door limiter /V arm configuration |
| JP6800177B2 (en) * | 2018-04-23 | 2020-12-16 | 三井金属アクト株式会社 | Door check device for automobiles |
| CN109209079A (en) * | 2018-11-16 | 2019-01-15 | 丰业迪睦斯（芜湖）汽车部件有限公司 | Novel side door limiter limits arm configuration |
| CN111075285A (en) * | 2019-12-31 | 2020-04-28 | 丰业迪睦斯（芜湖）汽车部件有限公司 | Novel metal spring shell structure of limiter |
| CN113090143B (en) * | 2021-04-30 | 2023-02-03 | 东风汽车有限公司东风日产乘用车公司 | Vehicle door limiter |
| CN116163606A (en) * | 2022-09-07 | 2023-05-26 | 浙江吉利控股集团有限公司 | Stopper, door and vehicle |
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| JP3632018B2 (en) * | 2002-08-21 | 2005-03-23 | 理研化機工業株式会社 | Automotive door checker |
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| JP5341785B2 (en) * | 2010-01-15 | 2013-11-13 | オイレス工業株式会社 | Door check device |
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| JP5239101B2 (en) * | 2011-03-29 | 2013-07-17 | 三井金属アクト株式会社 | Automotive door check link device |
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| JPH1081136A (en) * | 1996-09-09 | 1998-03-31 | Oi Seisakusho Co Ltd | Automobile check link device |
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| WO2012001303A1 (en) * | 2010-06-30 | 2012-01-05 | Mgi Coutier | Doorstop device for a motor vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110359794A (en) | 2019-10-22 |
| CN107313668A (en) | 2017-11-03 |
| JP2017197945A (en) | 2017-11-02 |
| JP6578548B2 (en) | 2019-09-25 |
| CN107313668B (en) | 2018-10-16 |
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