JP2019203355A - Door check device for automobile - Google Patents

Abstract

To achieve weight saving and reduce the occurrence of noises, regarding a door check device for an automobile.SOLUTION: The door check device for the automobile includes: a link 4 that is pivotally supported by a vehicle body; a retaining member 5 that is fixed to a door; synthetic resin shoes 8, 9 that are accommodated in an accommodation chamber formed in the retaining member 5 in a vertically movable manner, and that are slidable on a detent surface of the link 4; and springs 10, 11 that are accommodated in the accommodation chamber of the retaining member 5, and that bias the shoes 8, 9 toward the detent surface of the link 4. The retaining member 5 includes: a synthetic resin case 6, one side of which opens, and which has accommodation sections 62, 63; and a synthetic resin cover 7 that forms the accommodation chamber by joining to one side of the synthetic resin case 6 and closing the accommodation sections 62, 63. The synthetic resin case 6 and the synthetic resin cover 7 are joined to each other using engaging means or welding means.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an automobile door check device capable of holding an automobile door in a predetermined open position.

  The automotive door check device has a base end pivotally supported by a body so as to form a concave and convex detent surface along a longitudinal direction, a case attached to the door, and an opening of the case. A cover, a synthetic resin shoe housed in the case and sliding on the detent surface of the link as the door opens and closes, and a spring housed in the case and biasing the shoe toward the detent surface of the link Along with the opening and closing operation of the door, a predetermined resistance force (checking force) is applied to the opening and closing operation of the door by sliding the detent surface of the link while the shoe is biased by the spring, and the door is It has a function of holding in the open position (see, for example, Patent Document 1).

JP 2014-34865 A

  However, the door check device for automobiles described in Patent Document 1 is coupled with the fact that the spring is made of metal, and the large case and the cover are made of metal among the elements of the device. In addition to increasing the weight, when the door moves up and down in the case, and during the expansion and contraction of the spring, noise caused by friction between different materials of synthetic resin and metal, and noise caused by friction between metals May occur, leading to a decrease in quality.

  In view of the above problems, an object of the present invention is to provide an automotive door check device that is reduced in weight and reduced in the occurrence of abnormal noise.

  In order to solve the above-mentioned problem, the present invention is fixed to a link whose one end is pivotally supported by a vehicle body and a door mounting surface supported to be openable and closable by the vehicle body. A holding member through which the link is inserted so as to be movable in the longitudinal direction of the link, and a detent surface provided on the surface of the link are slidably accommodated in a housing chamber formed in the holding member so as to be movable in the vertical direction. A movable synthetic resin shoe, and a spring housed in the housing chamber of the holding member and biasing the shoe toward the detent surface of the link, the holding member comprising the shoe and A housing part opened on one side so that the spring can be housed, a synthetic resin case having a through hole through which the link is inserted, and one side of the synthetic resin case joined to the housing A synthetic resin cover having a through hole through which the link is inserted, and the synthetic resin case and the synthetic resin cover are joined to each other by a joining means. It is characterized by that. As a result, the weight of the automobile door check device can be reduced, and the generation of abnormal noise due to rubbing noise caused by the contact between the holding member, the shoe and the spring can be reduced.

  Preferably, the joining means includes a claw portion provided on one of the synthetic resin case or the synthetic resin cover, and the synthetic resin cover and the synthetic member provided on the other claw portion. The engaging means includes an elastic engaging portion that engages with the resin cover in the separating direction. Thereby, the synthetic resin cover and the synthetic resin case can be easily and reliably joined to each other by engaging the elastic engagement portion with the claw portion.

  Preferably, the joining means is a welding means for welding the joint portion of the synthetic resin case and the joint portion of the synthetic resin cover together. Thereby, the synthetic resin cover and the synthetic resin case can be easily and reliably joined to each other.

  Preferably, the joining means includes a claw portion provided on one of the synthetic resin case or the synthetic resin cover, and the synthetic resin cover and the synthetic member provided on the other claw portion. It includes engagement means including an elastic engagement portion that engages with the resin cover in the separating direction, and welding means for welding the joint portion of the synthetic resin case and the joint portion of the synthetic resin cover to each other. . Thereby, a synthetic resin cover and a synthetic resin case can be joined more firmly to each other.

  Preferably, when the synthetic resin case and the synthetic resin cover are joined to each other, the elastic engagement portion and the claw portion are respectively disposed on surfaces where the elastic engagement portion and the claw portion are in sliding contact with each other. Are provided with inclined surfaces that are inclined in directions opposite to each other. Thereby, an elastic engagement part can be easily and reliably engaged with a nail | claw part.

  Preferably, either one of the joint portion of the synthetic resin case or the joint portion of the synthetic resin cover is a light-transmitting resin, and the other joint portion is a light-absorbing resin. Thereby, the joining part of the synthetic resin case and the joining part of the synthetic resin cover can be reliably welded using the laser method as the welding means.

Preferably, the spring is a compression coil spring,
The shoe has a bottomed cylindrical shape and has a spring accommodating recess that accommodates the compression coil spring in the vertical direction. As a result, the compression coil spring can be housed stably in the housing chamber of the holding member.

  Preferably, a rib for stopping the rotation of the shoe is provided on the outer peripheral surface of the shoe by contacting the inner surface of the holding chamber of the holding member. As a result, the shoe can be securely held in the proper position.

  Preferably, a plurality of protrusions extending in the vertical direction and slidingly contacting the inner surface of the holding chamber of the holding member in the vertical direction are provided on the outer peripheral surface of the shoe. Accordingly, the shoe can be smoothly moved up and down in the holding chamber of the holding member.

  Preferably, the synthetic resin case is provided with a pair of left and right guide portions that come into contact with a side surface of the link and restrict left-right deflection of the link. Thereby, unnecessary fluctuation of the link can be prevented.

  Preferably, the shoe has a sliding portion that slides on the detent surface of the link, and the width of the sliding portion of the shoe is set to be smaller than an interval between the pair of guide portions. Thereby, the shoe can move up and down reliably without contacting the guide portion.

  Preferably, the detent surface of the link is formed with ridges and depressions alternately in the longitudinal direction, and the radius of the corner r portion of the sliding part of the shoe is set to be the ridges and depressions. It is smaller than the radius of the reverse angle r part to be connected. Thereby, it is possible to suppress dust from entering between the detent surface of the link and the sliding portion of the shoe.

  Preferably, the sliding portion of the shoe is provided with a recess that forms a left-right clearance with the detent surface of the link. As a result, when the shoe slides on the detent surface of the link, dust adhering to the detent surface of the link and / or the sliding portion of the shoe can be swept away from the gap, and between the detent surface of the link and the sliding portion of the shoe. It is possible to improve the durability of the sliding portion of the shoe and the detent surface of the link by suppressing the entrapment of dust.

  Preferably, a bolt for fixing the holding member to the door is fixed with a head embedded in the synthetic resin cover. Accordingly, the bolt can be firmly fixed to the synthetic resin cover.

  According to the present invention, since the holding member is formed by the synthetic resin case and the synthetic resin cover joined to the synthetic resin case, it is possible to reduce the weight and generate abnormal noise due to rubbing sound or the like. Can be reduced.

It is a perspective view of the door check device for cars concerning the present invention. It is the II arrow side view in FIG. FIG. 3 is a plan view taken along arrow III in FIG. 1. It is a disassembled perspective view of the door check apparatus for motor vehicles. It is the VV line longitudinal cross-sectional view in FIG. FIG. 6 is an enlarged view of a VI part shown in FIG. 5. It is a longitudinal cross-sectional view for demonstrating the assembly method of a holding member. It is a disassembled perspective view for demonstrating the assembly method of a holding member. It is a reverse view of a synthetic resin cover. FIG. 3 is a longitudinal sectional view taken along line XX in FIG. 2. It is the XI-XI line cross-sectional view in FIG. FIG. 3 is a cross-sectional view taken along line XII-XII in FIG. 2. It is an enlarged view of the XIII part shown in FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view of the door check device 1 for an automobile, FIG. 2 is a side view of the same, FIG. 3 is a plan view of the same, and FIG. 4 is an exploded perspective view of the same.

  The vehicle door check device 1 holds the door D in a predetermined open position by applying resistance to the opening and closing operation of the door D pivotally supported by a pair of upper and lower door hinges (not shown) on the vehicle body B of the vehicle. And has a function of stopping at the fully open position.

  The vehicle door check device 1 is pivotally supported by a bracket 2 whose base end is fixed to the vehicle body B so as to be swingable in a horizontal direction (vertical direction in FIG. 3) by a pivotal shaft 3 that faces the vertical direction. A link 4 integrally formed with a fully open stopper 41 for stopping the door D at the fully open position at the front end and a mounting surface D1 facing in the vertical direction inside the door D are fixed to the synthetic resin case 6 and the synthetic resin. The holding member 5 formed including the cover 7 and the link 4 accommodated in the holding member 5 (upper storage chamber 621 and lower storage chamber 631 described later) and inserted through the holding member 5 in accordance with the opening / closing operation of the door D. The upper and lower shoes 8 and 9 that slide along the longitudinal direction of the detent surface (not indicated) to be formed, and the upper and lower shoes 8 and 9 that are accommodated in the holding member 5 are attached to the detent surface of the link 4 respectively. Up and down compression Yl and a spring 10, 11.

  When the door D is in the closed position, the holding member 5 is located on the side closer to the base end portion of the link 4 (right side in FIGS. 2 and 3) as shown by a two-dot chain line in FIGS. When the door D opens from the closed position, the holding member 5 moves toward the distal end side of the link 4 (left side in FIGS. 2 and 3) and the link 4 moves the pivot shaft 3 along with the opening operation. It rotates in the vehicle outward direction (counterclockwise in FIG. 3). 2 and 3, when the rear surface of the holding member 5 comes into contact with the fully open stopper 41, the door D stops at the fully open position. When the door D is closed from the fully open position, the holding member 5 moves toward the base end side of the link 4 and the link 4 rotates about the pivot shaft 3 in the clockwise direction in FIG. The closed state shown by the two-dot chain line in FIGS.

  The upper and lower shoes 8 and 9 accommodated in the holding member 5 are pressed against the detent surface of the link 4 by the urging force of the compression coil springs 10 and 11 as the holding member 5 moves in the longitudinal direction of the link 4. By sliding in this state, a resistance force is applied to the opening / closing operation of the door D, and the door D is held at an arbitrary open position.

  As shown in FIG. 5, the link 4 is formed by covering the entire surface of a single metal core 4A with a synthetic resin coating 4B. A shaft hole 42 into which the pivot shaft 3 is inserted is provided at the base end portion of the link 4, and a fully open stopper 41 is also provided at the tip end portion, which is also between the base end portion and the tip end portion, and is a door. In a region where the upper and lower shoes 8 and 9 slide in accordance with the opening / closing operation of D, a detent surface that alternately forms raised portions 43 and depressed portions 44 along the longitudinal direction is provided.

  The core material 4A is made of metal, and is formed such that the plate surface faces in the horizontal direction and the longitudinal direction faces in the front-rear direction. A portion 41A (see FIG. 11) is provided.

  The covering material 4B forms a fully open stopper 41 by covering the widened portion 41A of the core material 4A, and forms a detent surface by covering the core material 4A in the longitudinal direction.

  The holding member 5 is formed by either one of engagement means described later or welding means that is laser welding of the synthetic resin case 6 and the synthetic resin cover 7, or the engagement means and the welding means. It is fixed to the mounting surface D1 of the door D by two upper and lower bolts 12 formed by joining by both means and fixed to the synthetic resin cover 7.

  In the present embodiment, laser welding is used as a welding means for welding the synthetic resin case 6 and the synthetic resin cover 7 to each other. However, the present invention is not limited to this, and welding is performed. As means, ultrasonic welding, vibration welding, or the like may be employed. The welding operation of the synthetic resin cover 7 to the synthetic resin case 6 is performed in a state where the upper and lower shoes 8 and 9 and the upper and lower compression coil springs 10 and 11 are accommodated in the synthetic resin case 6.

  As shown in FIG. 5, the holding member 5 is an upper part for accommodating the upper shoe 8 and the compression coil spring 10 so as to be movable up and down in a form in which a synthetic resin case 6 and a synthetic resin cover 7 are joined to each other. An accommodation chamber 621 and a lower accommodation chamber 631 for accommodating the lower shoe 9 and the compression coil spring 11 so as to be movable up and down are formed.

  The synthetic resin case 6 has a box shape with an opening at the front in a form in which the synthetic resin cover 7 is not joined, and a through hole 611 through which the link 4 is inserted in the front-rear direction at the rear surface of the upper and lower central part. The upper housing portion 62 for forming the upper housing chamber 621 is provided above the link insertion portion 61 that is provided and forms the through-hole 611, and the lower portion is disposed below the link insertion portion 61. A lower accommodating portion 63 for forming the accommodating chamber 631 is provided. Preferably, as shown in FIG. 10, the outer dimension A in the left-right direction of the upper and lower housing parts 62, 63 is made smaller than the outer dimension B in the left-right direction of the link insertion part 61. If it does in this way, size reduction and weight reduction of the synthetic resin case 6 can be achieved.

  A synthetic resin cover is provided at a joint portion 67 (a hatched portion in FIG. 8) 67 facing the front of the synthetic resin case 6 so as to close the upper housing portion 62 and the lower housing portion 63 from the front. 7 joining portions (portions shown by oblique lines in FIG. 9) 75 are joined by laser welding. Preferably, left and right flange portions 68 and 68 are provided at the rear end of the link insertion portion 61, respectively. If it does in this way, the joint area of the junction part 67 of the synthetic resin case 6 can be enlarged, and it becomes possible to aim at the improvement of the joint strength by laser welding.

  Inside the link insertion part 61 of the synthetic resin case 6, left and right guide parts 64, 64 that can contact both left and right side surfaces of the link 4 that passes through the through hole 611 are provided. As shown in FIG. 11, the guide portions 64, 64 have a shape that protrudes in a mountain shape toward each other, and the tip end portion contacts the side surface of the link 4 to guide the link 4 in the longitudinal direction. , And restricting the lateral vibration of the link 4 in the left-right direction.

As shown in FIG. 5, the upper and lower surfaces of the synthetic resin case 6 are claws with which the upper and lower elastic engagement portions 73 </ b> A provided on the synthetic resin cover 7 are respectively engaged in the separating direction (longitudinal direction of the link 4). One portion 65A is provided. As shown in FIG. 12, two claw portions 65B respectively engaged with the left and right elastic engaging portions 73B provided in the synthetic resin cover 7 in the separating direction are provided on the left and right side surfaces of the synthetic resin case 6. It is provided one by one.
The elastic engagement portions 73A and 73B and the claw portions 65A and 65B in the present embodiment constitute the engagement means in the present invention.

  As shown in FIG. 8, the joint portion 67 of the synthetic resin case 6 is provided with a plurality of convex portions 66 that respectively fit into the plurality of concave portions 72 (see FIGS. 4 and 9) provided in the synthetic resin cover 7. It is done. The convex portion 66 is fitted into the concave portion 72 of the synthetic resin cover 7 so that the synthetic resin case 6 and the synthetic resin cover 7 are welded to each other. In addition to positioning, the welding strength of the synthetic resin cover 7 to the synthetic resin case 6 is improved.

  The synthetic resin cover 7 has a shape capable of closing the upper housing portion 62 and the lower housing portion 63 of the synthetic resin case 6 and is welded to the joint portion 67 of the synthetic resin case 6. The synthetic resin cover 7 has a through hole 71 at the center in the vertical direction and through which the link 4 is inserted in the front-rear direction, a plurality of concave portions 72 and elastic engagement portions 73A and 73B. A flange portion 74 extending toward the synthetic resin case 6 is provided on the outer periphery of the synthetic resin cover 7.

The elastic engaging portions 73A and 73B are U-shaped, protrude from a part of the flange portion 74 toward the synthetic resin case 6, and can be elastically deformed inward and outward. The portions 65A and 65B are engaged with each other in the separation direction. Preferably, when the synthetic resin case 6 and the synthetic resin cover 7 are joined to each other by the engaging means, the elastic engagement portions 73A and 73B and the claw portions 65A and 65B are elastically engaged with the respective surfaces in sliding contact with each other. Inclined surfaces 731A (refer to FIG. 7), 731B (refer to FIG. 12), 651A (refer to FIG. 7), and 651B (refer to FIG. 12) in which the joint portions 73A and 73B and the claw portions 65A and 65B are inclined in the direction facing each other. ).
More specifically, as clearly shown in FIGS. 7 and 12, the inclined surfaces 731A and 731B of the elastic engagement portions 73A and 73B taper toward the left which is the direction facing the claw portions 65A and 65B. It is inclined to become. As for the inclined surfaces 651A and 651B of the claw portions 65A and 65B, the protruding amounts of the claw portions 65A and 65B from the surface of the synthetic resin cover 6 gradually decrease toward the right, which is the direction facing the elastic engagement portions 73A and 73B. Inclined to do.
Thus, when the synthetic resin case 6 and the synthetic resin cover 7 are joined to each other by the engaging means, the inclined surfaces 731A and 731B of the elastic engaging portions 73A and 73B and the inclined surfaces 651A and 651B of the claw portions 65A and 65B are used. And the elastic engagement portions 73A and 73B can be easily elastically deformed outward, and finally the inclined surfaces 731A and 731B get over the inclined surfaces 651A and 651B, thereby elastically engaging. The portions 73A and 73B can be engaged with the claw portions 65A65B.

  The synthetic resin cover 7 is welded to the synthetic resin case 6 in a state (joined state) in which the elastic engagement portions 73A and 73B are engaged with the claw portions 65A and 65B, respectively. In this way, the synthetic resin case 6 and the synthetic resin cover 7 can be welded together while the synthetic resin cover 7 is joined to the synthetic resin case 6, so that the welding operation, welding accuracy and welding strength are improved. Can be made.

  In a state where the synthetic resin cover 7 is welded to the synthetic resin case 6, the convex portion 66 is fitted into the concave portion 72, the elastic engagement portions 73A and 73B are respectively engaged with the claw portions 65A and 65B, The flange portion 74 of the synthetic resin cover 7 surrounds the synthetic resin case 6 in contact with or close to the outer periphery of the synthetic resin case 6. In this state, the synthetic resin cover 7 is welded to the synthetic resin case 6, whereby the joint portion (area shown by hatching in FIG. 7) 75 and the joint portion 67 of the synthetic resin case 6 Are joined together by welding.

  Preferably, when the welding means is laser welding, at least one of the joint portion 67 of the synthetic resin case 6 or the joint portion 75 of the synthetic resin cover 7 is formed of a light transmitting resin. Then, one of the other joints is formed of a light absorbing resin.

  As shown in FIG. 5, the bolt 12 for fixing the holding member 5 to the mounting surface D <b> 1 of the door D is formed only on the synthetic resin cover 7 with the enlarged head 121 or the root of the head 121 and the screw part 122. The part is fixed in an embedded form. Preferably, the bolt 12 is fixed to the synthetic resin cover 7 by insert molding. Thereby, the bolt 12 can be easily and firmly fixed to the synthetic resin cover 7.

  Between the rear surface of the synthetic resin case 6 and the fully open stopper 41, a buffer member 13 is provided for alleviating an impact when the rear surface of the synthetic resin case 6 contacts the fully open stopper 41 at the fully open position of the door D. Is done. The buffer member 13 has a rectangular hole 13a, and is interposed between the rear surface of the synthetic resin case 6 and the fully open stopper 41 in a state where the link 4 is inserted into the hole 13a.

  Between the front surface of the synthetic resin cover 7 and the mounting surface D1 of the door D, a closing member 14 for closing a through hole (not shown) provided in the mounting surface D1 (a hole through which the link 4 is inserted) is interposed. The The closing member 14 is formed of foamed rubber or the like and has a cut hole 14a through which the link 4 is inserted. With the link 4 inserted into the cut hole 14a, the front surface of the synthetic resin case 6 and the door D It is interposed in a compressed form between the mounting surface D1.

  The shoes 8 and 9 are symmetrical with each other and are made of synthetic resin. The upper shoe 8 has a bottomed cylindrical shape that opens upward, and is housed in the upper housing chamber 621 of the holding member 5 so as to be vertically movable. The lower shoe 9 has a bottomed cylindrical shape that opens downward, and is housed in the lower housing chamber 631 of the holding member 5 so as to be vertically movable. In this embodiment, the synthetic resin case 6, the synthetic resin cover 7 and the shoes 8 and 9 are made of synthetic resin, so that the contact with the other members due to the vertical movement of the shoes 8 and 9 is made between the synthetic resins. It is possible to make contact and to suppress the noise generated when the shoes 8 and 9 move up and down, thereby reducing the generation of abnormal noise.

  Sliding portions 81 and 91 that slide on the detent surface of the link 4 are provided at the tip portions of the upper and lower shoes 8 and 9, respectively, and the upper and lower compression coil springs 10 and 11 are axially arranged on the inner side. Spring accommodating recesses 82 and 92 for accommodating and holding in the (vertical direction) are provided, respectively.

  As shown in FIGS. 5 and 6, the sliding portions 81 and 91 of the shoes 8 and 9 are shaped in the longitudinal direction so that the detent surface of the link 4 can slide in a stable state as the door D opens and closes. It has a mountain shape. Concave portions 81a and 91a in the left-right direction (direction orthogonal to the longitudinal direction of the link 4) are provided on the front end surfaces of the sliding portions 81 and 91 of the shoes 8 and 9, respectively. The concave portions 81a and 91a are formed so as to form gaps C and C across the entire left and right direction between the sliding portions 81 and 91 and the upper and lower detent surfaces. Further, the concave portions 81a and 91a are provided with through holes 81b and 91b communicating with the spring accommodating concave portions 82 and 92 of the shoes 8 and 9, respectively.

  As described above, by providing the recesses 81a and 91a in the sliding portions 81 and 91 of the shoes 8 and 9, respectively, when the shoes 8 and 9 slide on the detent surface of the link 4, the detent surface of the link 4 and / or Alternatively, dust adhering to the sliding portions 81 and 91 of the shoes 8 and 9 can be swept out from the left and right ends of the gaps C and C. As a result, it is possible to suppress the dust from entering between the detent surface of the link 4 and the sliding portion 81 of the shoe 8 and to improve the durability of the sliding portion 81 of the shoe 8 and the detent surface of the link 4. it can.

  Preferably, as shown in FIG. 6, the radius of corners r 81 c, 91 c facing the front-rear direction provided at the front and rear ends of the sliding portions 81, 91 in the shoes 8, 9 is r 1, and the detent surface in the link 4 When the radius of the reverse angle r portion 44a that connects the raised portion 43 and the depressed portion 44 is r2, r1 <r2 is set. As a result, when the sliding portions 81 and 91 of the shoes 8 and 9 shift from the depressed portion 44 of the detent surface in the link 4 to the raised portion 43 and vice versa, the shoes 8 and 9 are opposed to the reverse angle r portion 44a of the link 4. Since the contact of the corner r portions 81c and 91c is a line contact in the left-right direction (a direction perpendicular to the sliding direction of the shoes 8 and 9), the contact between the detent surface of the link 4 and the sliding portion 81 of the shoe 8 Dust trapping can be suppressed.

  Furthermore, preferably, as shown in FIG. 10, the width dimension W1 in the left-right direction of the sliding portions 81, 91 of the shoes 8, 9 is made smaller than the outer dimension W4 of the spring accommodating recesses 82, 92, and the link 4 When the width in the left-right direction on the detent surface is W2, and the width between the left and right guide portions 64, 64 is W3, the relationship is set so that W1 <W2 ≦ W3. In this way, the lateral deflection of the link 4 can be reliably controlled, and the tips of the sliding portions 81 and 91 in the shoes 8 and 9 do not contact the left and right guide portions 64 and 64. The movement can be made smooth, and the synthetic resin case 6 can be downsized.

  The spring housing recess 82 of the upper shoe 8 has a circular cross-sectional shape and is open upward. The depth of the spring accommodating recess 82 is set to be at least larger than ½ of the axial length of the compression coil spring 10 in the compressed state (the state accommodated in the upper accommodating chamber 621). The spring housing recess 92 of the lower shoe 9 is not shown in the figure, but has a circular cross-sectional shape and is open at the bottom. The depth of the spring accommodating recess 92 is set to be at least larger than ½ of the axial length of the lower compression coil spring 11 in the compressed state (the state accommodated in the lower accommodating chamber 631). The In this way, since the upper and lower compression coil springs 10 and 11 can be stably held in the spring accommodating recesses 82 and 92 of the shoes 8 and 9, respectively, It is possible to prevent a phenomenon in which abnormal noise is generated by rubbing the coil portions of the upper and lower compression coil springs 10 and 11 made of metal on the holding member 5 and the inner peripheral surfaces of the lower housing chambers 621 and 631.

  Cylindrical protrusions 83 and 93 projecting toward the opening side are provided in the back of the spring accommodating recesses 82 and 92 of the upper and lower shoes 8 and 9, respectively. End portions of the coil portions of the compression coil springs 10 and 11 are fitted on the cylindrical protrusions 83 and 93. Thereby, the upper and lower compression coil springs 10 and 11 can be reliably held in the spring accommodating recesses 82 and 92 of the upper and lower shoes 8 and 9.

  On the outer peripheral surface of the peripheral wall forming the spring accommodating recesses 82, 92 of the upper and lower shoes 8, 9, ribs 84, 94 projecting diagonally left forward and ribs 85, 95 projecting diagonally forward right, predetermined in the circumferential direction A plurality of protrusions 86 and 96 are provided at intervals of, respectively.

  The ribs 84, 85, 94, and 95 extend in the vertical direction, the rib 84 is the left inner corner of the upper storage chamber 621, the rib 85 is the right inner corner of the upper storage chamber 621, and the rib 94 is the lower storage chamber The left inner corner 631 and the rib 95 fit into the right inner corner of the lower storage chamber 631, respectively. Accordingly, the shoes 8 and 9 are held in the normal positions by suppressing the rotation of the upper shoe 8 in the upper storage chamber 621 and the rotation of the lower shoe 9 in the lower storage chamber 631.

  The protrusions 86 and 96 extend in the vertical direction, and, as shown in FIG. 13, the inner peripheral surfaces of the upper and lower storage chambers 621 and 631 (the inner surfaces of the upper storage portions 62 and 63 and the synthetic resin cover 7). By making contact with the inner surface), the upper and lower movements are made smooth by suppressing rattling in the upper and lower storage chambers 621 and 631 of the shoes 8 and 9.

  The upper compression coil spring 10 is held in the spring housing recess 82 of the upper shoe 8 and is housed in a compressed state in the upper housing chamber 621, so that the shoe 8 is placed on the upper detent surface of the link 4. Energize towards. Thus, when the compression coil spring 10 is extended and contracted, the inner surface of the upper housing portion 62 and the synthetic resin cover of the synthetic resin case 6 in which the coil portion of the metal compression coil spring 10 is the inner peripheral surface of the upper housing chamber 621 are provided. 7 is not rubbed in contact with the inner surface of the door 7, so that it is possible to reduce the generation of abnormal noise due to the expansion and contraction operation accompanying the opening and closing operation of the door D.

  The lower compression coil spring 11 is held in the spring housing recess 92 of the lower shoe 9 and is housed in a compressed state in the lower housing chamber 631 so that the shoe 9 is detented on the lower side of the link 4. Energize towards the surface. As a result, when the compression coil spring 11 is extended and contracted, the inner surface of the lower housing portion 63 of the synthetic resin case 6 and the inner surface of the synthetic resin cover 7, where the coil portion of the compression coil spring 11 is the inner peripheral surface of the lower housing chamber 631. Therefore, it is possible to reduce the generation of abnormal noise due to the expansion / contraction operation accompanying the opening / closing operation of the door D.

  As described above, in the present embodiment, the holding member 5 that houses the shoes 8 and 9 and the compression coil springs 10 and 11 is engaged with the synthetic resin case 6 and the synthetic resin cover 7 is engaged with the elastic member 73A. 73B and claw portions 65A, 65B) and / or welding means (means for welding the joint portion 67 and the joint portion 75 to each other), thereby reducing the weight of the vehicle door check device 1. In addition, it is possible to improve the quality by reducing the rubbing sound during the vertical movement of the shoes 8, 9 and the expansion / contraction operation of the compression coil springs 10, 11.

The embodiment of the present invention has been described above, but various modifications and changes such as the following can be made without departing from the scope of the present invention.
(1) The link 4 is pivotally supported on the door D, and the holding member 5 is fixed to the vehicle body B.
(2) In the above embodiment, the synthetic resin cover 7 is provided with four elastic engaging portions 73A and two elastic engaging portions 73B. However, instead of this, a synthetic resin cover is provided. 7 is provided with only the elastic engagement portion 73A, or only the elastic engagement portion 73B is provided.
(3) The elastic engagement portion 73A and / or the elastic engagement portion 73B is provided in the synthetic resin case 6, and the claw portion to which the elastic engagement portion 73A and / or the elastic engagement portion 73B engage is the synthetic resin cover 6. Shall be provided.
(4) In the embodiment described above, the convex portion 66 is provided in the joint portion 67 of the synthetic resin case 6 and the concave portion 72 in which the convex portion 66 is fitted in the joint portion 75 of the synthetic resin cover 7 has been described. Instead of this, it is assumed that a concave portion is provided in the joint portion 67 of the synthetic resin case 6 and a convex portion that is fitted into the concave portion is provided in the joint portion 75 of the synthetic resin cover 7.
(5) The synthetic resin case 6 and the synthetic resin cover 7 are joined by fastening means such as screws and rivets instead of the welding means.
(6) The above (1) to (5) are appropriately combined.

DESCRIPTION OF SYMBOLS 1 Door check apparatus 2 Bracket 3 Pivot shaft 4 Link 4A Core material 41A Widening part 4B Covering material 41 Fully open stopper 42 Shaft hole 43 Raised part 44 Depressed part 44a Reverse angle r part 5 Holding member 6 Synthetic resin case 61 Link insertion part 611 Through hole 62 Upper housing portion 621 Upper housing chamber 63 Lower housing portion 631 Lower housing chamber 64 Guide portion 65A, 65B Claw portion 66 Protruding portion 67 Joint portion 68 Flange portion 7 Synthetic resin cover 71 Through hole 72 Recessed portion 73A, 73B Elasticity Engagement part 74 Flange part 75 Joint part 8, 9 Shoe 81, 91 Sliding part 81a, 91a Recessed part 81b, 91b Through hole 81c, 91c Angle r part 82, 92 Spring accommodating recessed part 83, 93 Cylindrical protrusions 84, 85, 94, 95 Rib 86, 96 Ribs 10, 11 Compression coil spring 12 Bolt 121 Head 122 Screw 13 cushioning member 13a hole 14 closure member 14a cut hole B body D door D1 mounting surface

Claims (14)

A link whose one end is pivotally supported by the vehicle body,
A holding member that is fixed to a mounting surface of a door that is supported by the vehicle body so as to be openable and closable, and through which the link is inserted so as to move in a longitudinal direction of the link as the door is opened and closed.
A synthetic resin shoe that is slidably accommodated in a housing chamber formed in the holding member, and that can slide on a detent surface provided on the surface of the link;
A spring housed in the housing chamber of the holding member and biasing the shoe toward the detent surface of the link,
The holding member is
A synthetic resin case having a housing part opened on one side so as to accommodate the shoe and the spring, and a through hole through which the link is inserted;
A synthetic resin cover having a through-hole through which the link is inserted, and forming the accommodation chamber by being bonded to one side of the synthetic resin case and closing the accommodation portion;
An automotive door check device, wherein the synthetic resin case and the synthetic resin cover are joined to each other by a joining means. The joining means;
A claw portion provided on one of the synthetic resin case or the synthetic resin cover, and a separation direction between the synthetic resin cover and the synthetic resin cover provided on the other claw portion. 2. The vehicle door check device according to claim 1, wherein the engagement means includes an elastic engagement portion to be engaged. The joining means;
2. The door check apparatus for an automobile according to claim 1, wherein welding means for welding the joint portion of the synthetic resin case and the joint portion of the synthetic resin cover are welded to each other. The joining means includes
A claw portion provided on one of the synthetic resin case or the synthetic resin cover, and a separation direction between the synthetic resin cover and the synthetic resin cover provided on the other claw portion. 2. An engagement means including an elastic engagement portion to be engaged, and welding means for welding the joint portion of the synthetic resin case and the joint portion of the synthetic resin cover to each other. Car door check device.   When the synthetic resin case and the synthetic resin cover are joined to each other, the elastic engagement portion and the claw portion are opposed to each other on the surfaces where the elastic engagement portion and the claw portion are in sliding contact with each other. The automobile door check device according to claim 2, further comprising an inclined surface that is inclined in a direction toward the vehicle.   One of the joint portions of the synthetic resin case and the joint portion of the synthetic resin cover is a light-transmitting resin, and the other joint portion is a light-absorbing resin. Item 5. The vehicle door check device according to Item 3 or 4. The spring is a compression coil spring,
The automobile door check device according to any one of claims 1 to 6, wherein the shoe has a bottomed cylindrical shape and has a spring accommodating recess that accommodates the compression coil spring in a vertical direction.   The automobile according to any one of claims 1 to 7, wherein a rib for preventing rotation of the shoe is provided on an outer peripheral surface of the shoe by contacting an inner surface of the holding chamber of the holding member. Door check device.   9. The protrusion according to claim 1, wherein a plurality of ridges extending in the vertical direction and sliding in the vertical direction on the inner surface of the storage chamber of the holding member are provided on the outer peripheral surface of the shoe. Automotive door check device.   10. The automotive use according to claim 1, wherein the synthetic resin case is provided with a pair of left and right guide portions that come into contact with a side surface of the link and restrict lateral deflection of the link. Door check device. The shoe has a sliding portion that slides on the detent surface of the link,
The automobile door check device according to claim 10, wherein a width of the sliding portion of the shoe is set to be smaller than an interval between the pair of guide portions. The detent surface of the link is formed with alternating ridges and depressions in the longitudinal direction,
The automobile door check device according to claim 11, wherein a radius of an angle r portion in the sliding portion of the shoe is smaller than a radius of an inverted angle r portion connecting the raised portion and the depressed portion.   The automobile door check device according to claim 11 or 12, wherein a concave portion is formed in the sliding portion of the shoe so as to form a left-right clearance with the detent surface of the link.   The bolt for fixing the said holding member to the attachment surface of the said door is embedded in the said synthetic resin cover, and the head is embedded and fixed for the motor vehicles in any one of Claims 1-13 characterized by the above-mentioned. Door check device.

Images