JP2019190085A - Door check device for automobile - Google Patents

Abstract

To reduce weight, and to suppress the generation of noise, in a door check device for an automobile.SOLUTION: A door check device for an automobile comprises: a synthetic resin-made case 5 having an accommodation hole 51 which is opened in a direction parallel with an attachment face; a link 4 formed by covering a metal-made core material with a synthetic resin-made coating material, and penetrating the case 5; a shoe 6 accommodated in the accommodation hole 51, and slidable on a surface of the link 4; a spring 7 accommodated in the accommodation hole 51, and energizing the shoe 6 toward the surface of the link 4; a full-open stopper 41 for regulating a full-open position of a door; and synthetic resin-made lid members 8, 80 and 800 which are fixed to an opening face 55 in which an opening of the accommodation hole 51 of the case 5 is formed by being turned to the case 5, block the accommodation hole 51, and hold the spring 7 in the accommodation hole in a compressed state.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an automobile door check device that can hold an automobile door in an arbitrary 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 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, the shoe slides on the detent surface of the link while being urged by the spring, thereby applying a predetermined resistance (checking force) to the door opening and closing operation and holding the door in an arbitrary 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 causing weight increase, abnormal noise caused by friction between different materials of synthetic resin and metal and friction between metals during the vertical movement of the shoe in the case accompanying the opening and closing operation of the door and the expansion and contraction of the spring May occur, leading to a decrease in quality.

  In view of the above-described problems, an object of the present invention is to provide an automobile door check device that achieves weight reduction and reduces the occurrence of abnormal noise.

  In order to solve the above-mentioned problems, the present invention provides a case made of a synthetic resin, which is fixed to one mounting surface of an automobile door or a vehicle body, and has an accommodation hole that opens in a direction parallel to the mounting surface, and one end portion. Is formed by covering a metal core with a synthetic resin coating, and is movable in the longitudinal direction. A link that is inserted into the housing, a shoe that is housed in the housing hole of the case, and is relatively movable along the longitudinal direction of the surface of the link, and a shoe that is housed in the housing hole of the case, A spring that is biased toward the link, a full-open stopper that is provided at the other end of the link and restricts the full-open position of the door, and is rotated with respect to the case. A synthetic resin lid member that is fixed to an opening surface in which the opening of the accommodation hole is formed, closes the accommodation hole, and holds the spring in a compressed state in the accommodation hole. . As a result, the case can be reduced in weight by forming the case from synthetic resin, and the generation of abnormal noise due to rubbing noise caused by the contact between the case and the shoe and spring accommodated in the case can be reduced.

  Preferably, the case has a plurality of pressing portions protruding outward around the accommodation hole, and the lid member has a plurality of fitting portions facing the opening surface of the case. The plurality of fitting portions are respectively fitted to the plurality of pressing portions and fixed to the case by being rotated with respect to the case. Thereby, in an assembly process, it can fix to a case simply by rotating a cover member.

  Preferably, the case has a plurality of pressing portions extending in the rotation direction of the lid member around the accommodation hole, and the lid member has a shape having a long side direction and a short side direction, By rotating with respect to the case, both end portions in the long side direction are fitted into the plurality of pressing portions and fixed to the case. Thereby, in an assembly process, it can fix to a case simply by rotating a cover member.

  Preferably, the case includes a blocking portion that restricts a rotation amount of the lid member with respect to the case. As a result, when the lid member is rotated and fixed to the case, the lid member can be reliably stopped at the proper position.

  Preferably, the cover member is fixed to the case by being rotated with respect to the case and screwed into a female screw portion or a male screw portion provided in the case. Thereby, in an assembly process, it can fix to a case simply by rotating a cover member.

  Preferably, the female screw portion of the case is provided on an inner peripheral surface of the receiving hole, and the lid member has a circular pressing portion that fits in the receiving hole on the back surface, and an outer periphery of the pressing portion. It is assumed that a male screw portion that is screwed into the female screw portion of the case is provided on the surface. Thereby, in an assembly process, it can fix to a case simply by rotating a cover member.

  Preferably, a concave portion into which an assembly jig for assembling the lid member to the case is fitted is provided at the center of the surface of the lid member. Thereby, a lid member can be reliably fixed to a case with an assembly jig in an assembly process.

  Preferably, an engagement portion is provided in the recess of the lid member so that the assembly jig engages with the rotation direction of the lid member. Accordingly, in the assembly process, the lid member can be reliably fixed to the case by the rotation of the assembly jig.

  Preferably, the lid member is welded to the case. Thereby, a lid member can be firmly fixed to a case.

  Preferably, the spring is a compression coil spring, and the lid member has a pushing portion that abuts against an end portion of the compression coil spring and pushes the compression coil spring in a compression direction when being fixed to the case. Shall. Thereby, when fixing a cover member to a case, a compression coil spring can be compressed reliably.

  Preferably, the shoe has a bottomed cylindrical shape and is housed in the housing hole of the case so as to be movable in the axial direction of the compression coil spring, and accommodates the compression coil spring in the axial direction. It shall have a recess. Thereby, the compression coil spring can be held in a stable state in the case.

  Preferably, the outer peripheral surface of the shoe is provided with a plurality of protrusions that can slide in contact with the inner peripheral surface of the housing hole of the case and extend in the axial direction of the compression coil spring. As a result, the shoe can move smoothly within the housing hole of the case.

  Preferably, the housing hole of the case is polygonal in a cross-sectional view, and the protruding portion of the shoe is engaged with a polygonal inner corner of the housing hole. As a result, the shoe is held in a stable state without unnecessary rotation in the housing hole of the case.

  Preferably, a cavity for enabling elastic deformation of the ridge is provided inside the ridge of the shoe. This prevents the shoe from rattling in the housing hole of the case and enables smoother movement.

  Preferably, a bolt for fixing the case to the mounting surface is fixed with a head embedded in the case. Thereby, a volt | bolt can be firmly fixed to a case.

  Preferably, the case has a guide portion that regulates the swing of the link about the pivot shaft. Thereby, unnecessary fluctuation of the link can be prevented.

  Preferably, the fully open stopper is formed by twisting the other end of the core member by approximately 90 degrees. Thereby, the contact surface with respect to the case of a fully open stopper can be enlarged, and an intensity | strength improvement can be aimed at.

  According to the present invention, since the case is formed of a synthetic resin, the weight can be reduced, and the generation of abnormal noise due to the rubbing sound caused by the contact between the case and the shoe and spring accommodated in the case can be reduced. .

1 is a perspective view of an automotive door check device according to a first embodiment of 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 a perspective view for demonstrating the inside of a link. It is a perspective view for demonstrating the assembly | attachment with respect to the case of a cover member. It is the VII-VII line longitudinal cross-sectional view in FIG. It is an enlarged view of the principal part in planar view. It is a top view of a case in the state where a lid member was omitted. FIG. 3 is a cross-sectional view taken along line XX in FIG. 2. It is a cross-sectional view which follows the XI-XI line in FIG. It is the XII-XII line longitudinal cross-sectional view in FIG. It is the XIII-XIII line longitudinal cross-sectional view in FIG. It is a perspective view of the door check device for cars concerning the 2nd example of the present invention. It is a perspective view of the principal part for demonstrating the assembly | attachment of the cover member of 2nd Example. It is a top view of the principal part similarly. It is the XVII-XVII line longitudinal cross-sectional view in FIG. It is a longitudinal cross-sectional view of the principal part which concerns on 3rd Example of this invention.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 is a perspective view of an automotive door check device 1 according to a first embodiment, FIG. 2 is a side view, FIG. 3 is a plan view, and FIG. 4 is an exploded perspective view.

  The vehicle door check device 1 applies resistance to the opening / 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 to hold the door D at an arbitrary open position or at a fully open position. The base end portion of the bracket 2 is fixed to the vehicle body B, and can be swung in and out of the vehicle (vertical direction in FIG. 3) by a pivot shaft 3 that faces the vertical direction. The link 4 that is pivotally supported and integrally formed with a fully open stopper 41 for stopping the door D at the fully open position at the tip, and the link 4 are inserted and fixed to the mounting surface D1 in the door D. A case 5 made of synthetic resin, upper and lower shoes 6 and 6 which are accommodated in the case 5 and slide along the upper and lower surfaces of the link 4 along the longitudinal direction as the door D is opened and closed. The upper and lower shoes 6, 6 The upper and lower compression coil springs 7 and 7 that are biased toward the upper and lower surfaces of the link 4 and the case 5 are fitted and fixed to accommodate the upper and lower shoes 6 and 6 and the compression coil springs 7 and 7. And upper and lower lid members 8 and 8 for closing upper and lower openings of the accommodation hole 51 of the case 5.

  In addition, since the door check apparatus 1 for motor vehicles has a vertically symmetrical structure, in order to avoid duplication description in the following description, about the element of the shoe 6, the spring 7, and the cover member 8, it represents the above element. explain. Accordingly, the lower element is understood by replacing the expression “upper” used in the description of the upper element with “lower” and “lower” with “upper”.

  When the door D is in the closed position, the case 5 is positioned closer to the base end portion of the link 4 as shown by a two-dot chain line in FIGS. When the door D opens from the closed position, the case 5 moves toward the distal end side (left side in FIGS. 2 and 3) of the link 4 along with the opening operation, and the link 4 is centered on the pivot shaft 3. To the outside of the vehicle (counterclockwise in FIG. 3). 2 and 3, when the case 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 opened position, the case 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. Then, a closed state indicated by a two-dot chain line in FIGS.

  As the case 5 moves in the longitudinal direction of the link 4, the shoe 6 accommodated in the case 5 is pressed against a detent surface (described later) provided on the upper and lower surfaces of the link 4 by the urging force of the compression coil spring 7. By sliding the detent surface in a state where the door D is open, resistance is applied to the opening and closing operation of the door D, and the door D is held at an arbitrary open position.

  As can be understood from the perspective view for explaining the inside of the link 4 shown in FIG. 5, the link 4 is formed by covering the entire surface of one metal core 4A with a synthetic resin coating 4B. It is formed. 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 the region where the shoe 6 slides in accordance with the opening / closing operation of D, detent surfaces (no reference) are provided that alternately form the raised portions 43 and the depressed portions 44 on the upper and lower surfaces along the longitudinal direction.

  The core member 6 is made of metal and is formed such that the plate surface is oriented in the horizontal direction and the longitudinal direction thereof is directed in the front-rear direction, and the plate surface is perpendicular to the front end portion where the fully open stopper 41 is provided. A collar 41A twisted 90 degrees by twisting (twisting) is provided so as to face.

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

  The case 5 is made of a synthetic resin, and has an outer shape of a substantially quadrangular prism shape. The case 5 is fixed to the mounting surface D1 of the door D with upper and lower two bolts 9. As shown in a longitudinal sectional view in FIG. 7, the bolt 9 is provided on the front surface (right surface in FIG. 7) of the case 5 facing the mounting surface D <b> 1 facing the vertical direction of the door D alone, or in the figure. As shown in FIG. 7 as another embodiment, the root portion of the head portion 91 and the screw portion 92 is fixed in an embedded manner. Preferably, the bolt 9 is fixed to the case 5 by insert molding. Thereby, the bolt 9 can be fixed to the case 5 easily and firmly.

  Between the rear surface of the case 5 (left surface in FIG. 2) and the fully open stopper 41, a buffer member 10 is interposed for relaxing the impact when the case 5 contacts the fully open stopper 41 at the fully open position of the door D. . The buffer member 10 has a rectangular hole 10a, and is interposed between the rear surface of the case 5 and the fully open stopper 41 in a state where the link 4 is inserted through the hole 10a.

  Between the front surface of the case 5 and the mounting surface D1 of the door D, a blocking member 11 for blocking a through hole (not shown) provided in the mounting surface D1 (a hole through which the link 4 is inserted) is interposed. The closing member 11 is formed of foamed rubber or the like, and has a cut hole 11a through which the link 4 is inserted, and the front surface of the case 5 and the mounting surface D1 of the door D with the link 4 inserted through the cut hole 11a. And in a compressed form.

  The case 5 has a hollow housing hole 51 penetrating in a direction parallel to the mounting surface D1 of the door D for housing the shoe 6 and the spring 7 (vertical direction in the present embodiment), and the link 4 in the front-rear direction. A through-hole 53 that penetrates in the direction intersecting the mounting surface D1 of the door D (the front-rear direction in the present embodiment) is formed so that it can be inserted.

  On the upper and lower opening surfaces 55 where the opening of the accommodation hole 51 in the case 5 is formed, the upper and lower lid members 8 are fixed so that the upper and lower lid members 8 can block the opening of the accommodation hole 51 from above and below. Each holding part 52 is provided. In the present embodiment, two pressing parts 52 are provided on the top and bottom.

  The accommodation hole 51 is a polygonal hole (hexagonal hole in the present embodiment) as shown in the cross-sectional view shown in FIG. 10 and is formed by penetrating the case 5 in the vertical direction parallel to the mounting surface D1 of the door D. Is done. On the inner peripheral surface of the accommodation hole 51, rotation-preventing ridges 51a and 51a facing each other are provided extending in the vertical direction. The rotation-stop protrusions 51a and 51a engage with the outer peripheral surface of the shoe 6 to stop the rotation of the shoe 6 in the accommodation hole 51 and hold it in a proper position.

  The front and rear surfaces of the case 5 are opened so that the link 4 can be inserted in the front-rear direction, and the through-hole 53 intersects the accommodation hole 51 inside the case 5. The through-hole 53 is formed so that the lateral width is larger than the width of the link 4 and the height is larger than the thickness of the link 4 at the portion where the raised portion 43 is formed.

  As shown in FIG. 11, left and right guide portions 54, 54 that restrict lateral deflection of the link 4 are provided in the case 5 and on both sides of the through hole 53. The guide portions 54, 54 have a shape that protrudes in a mountain shape facing each other, and the tip end portion contacts the side surface of the link 4, thereby guiding the link 4 in the longitudinal direction and unnecessary sideways of the link 4. Regulate runout.

  As shown in FIGS. 6, 9, and 12, the pressing portion 52 is located around the opening of the accommodation hole 51 and is located above the opening surface 55 of the case 5 (downward in the case of the lower pressing portion 52). It is formed so as to project outward in a circular arc shape from a fixed distance away. Accordingly, a gap is provided between the pressing portion 52 and the opening surface 55 of the case 5 so that a fitting portion 84 (to be described later) of the lid member 8 can be fitted therein.

  Preferably, two upper and lower pressing portions 52 are formed. In this case, as shown in FIG. 9, the two pressing portions 52, 52 are formed to have a point-symmetric shape with the center of the opening of the accommodation hole 51 as the center of symmetry. One pressing portion 52 is provided in an arc shape of approximately 90 degrees along the periphery of the opening of the accommodation hole 51. Therefore, between the end of the pressing part 52 and the end of the pressing part 52, gaps A and A of approximately 90 degrees are formed in the circumferential direction.

  As shown in FIGS. 6 and 9, a blocking portion 52 a that connects the pressing portion 52 and the opening surface 55 of the case 5 is provided at one end of the pressing portion 52 in the clockwise direction. The other end of the pressing portion 52 in the counterclockwise direction is not provided with the blocking portion 52a in order to permit rotation when the pressing portion 52 is fitted with the fitting portion 84 of the lid member 8.

  The shoe 6 is made of a synthetic resin and has a bottomed cylindrical shape with an upper opening as shown in FIGS. 4 and 7. The outer shape of the shoe 6 has a star shape as shown in the cross-sectional view of FIG. It is accommodated in the accommodation hole 51 so as to be movable in the vertical direction. In the present embodiment, since the case 5 and the shoe 6 are made of synthetic resin, the contact caused by the vertical movement of the shoe 6 is a contact between the synthetic resins, so that the generation of abnormal noise can be reduced by suppressing rubbing noise.

  A sliding portion 61 that slides on the detent surface of the link 4 is provided at the lower end portion of the shoe 6, and the upper side for accommodating and holding the compression coil spring 7 in the axial direction (vertical direction) is also provided on the inner side. An open spring accommodating recess 62 is provided.

  The sliding portion 61 has a mountain shape as shown in the longitudinal sectional view of FIG. 7 so that the detent surface of the link 4 can slide in a stable state as the door D is opened and closed.

  The spring accommodating recess 62 has a circular cross-sectional shape and is open upward. The depth of the spring accommodating recess 62 is set to be at least larger than ½ of the axial length of the compression coil spring 7 in the compressed state (the state accommodated in the accommodating hole 51 of the case 5). The As a result, the compression coil spring 7 can be stably held in the spring accommodating recess 62 of the shoe 6, so that the coil portion of the compression coil spring 7 made of metal is attached to the case 5 when the compression coil spring 7 is expanded and contracted. It is possible to prevent a situation in which abnormal noise is generated by rubbing against the inner peripheral surface of the accommodation hole 51.

  A circular protrusion 62 a protruding upward is provided on the bottom surface of the spring accommodating recess 62. The lower end of the coil portion of the compression coil spring 7 is fitted on the circular protrusion 62a. Thereby, the compression coil spring 7 can be more reliably held in the spring accommodating recess 62 of the shoe 6.

  As shown in FIG. 10, a plurality of (six in the present embodiment) ridges 63 are formed on the outer peripheral surface of the peripheral wall forming the spring accommodating recess 62 of the shoe 6 at a predetermined interval in the circumferential direction. . The protrusion 63 extends in the vertical direction and engages with an inner corner portion of the polygonal accommodation hole 51 in the case 5.

  As shown in FIGS. 10 and 12, a cavity 64 is provided inside the protrusion 63 along the vertical direction. Thereby, it can be set as the structure which can be elastically deformed to the radial direction of the shoe 6 by making the protrusion part 63 into a thin-walled form along an up-down direction. By making the protrusion 63 elastically deformable in the radial direction of the shoe 6, the shoe 6 can move smoothly in the receiving hole 51 of the case 5 made of synthetic resin without rattling in the vertical direction, and the rubbing sound Can be more reliably suppressed. Preferably, the cavity 64 is provided so as to penetrate the peripheral wall of the shoe 6 in the vertical direction.

  The metal compression coil spring 7 is held in the spring accommodating recess 62 of the shoe 6 in a compressed state between the shoe 6 and the lid member 8 fixed to the opening surface 55 of the case 5, and links the shoe 6. Energize towards the detent surface of 4. Since the compression coil spring 7 is accommodated in the spring accommodating recess 62 of the shoe 6, as described above, the coil portion of the compression coil spring 7 contacts the inner peripheral surface of the accommodation hole 51 of the case 5 during the expansion / contraction operation. Therefore, the generation of abnormal noise due to the expansion / contraction operation accompanying the opening / closing operation of the door D can be reduced.

  The lid member 8 is made of synthetic resin, and has a polygonal lid portion 81 in a plan view shown in FIG. 8, and a pushing portion 82 projecting in a circular shape at the center of the back surface (lower surface) of the lid portion 81, A circular concave portion 83 provided at the center of the surface (upper surface) of the lid portion 81 and two claw-like fitting portions 84 provided around the circular pushing portion 82 on the back surface side of the lid portion 81 are integrated. Form. The lid member 8 is rotated with respect to the case 5 in the assembly process of the automobile door check device 1, and the fitting portion 84 is fitted into the pressing portion 52 of the case 5, whereby the opening surface 55 of the case 5. So that the receiving hole 51 can be closed.

  The lid 81 closes the opening of the accommodation hole 51 in the case 5. The pushing portion 82 has a shape protruding so as to fit inside the accommodation hole 51 in the case 5. When the lid member 8 is fixed to the case 5, the pushing portion 82 is compressed by pushing the compression coil spring 7, and the lid member 8. Is fixed to the case 5, the extension force of the compression coil spring 7 is received. The recess 83 is for fitting an assembly jig used in the assembly process of the automobile door check device 1. The recessed portion 83 is provided with a plurality of protruding engaging portions 83a with which the rotating portion of the assembly jig can be engaged in the rotating direction.

  As can be understood from FIG. 6, the fitting portion 84 is around the push-in portion 82 and is folded inward from a position away from the back surface of the lid portion 81 by a distance corresponding to the thickness of the holding portion 52 of the case 5. It is formed. Two fitting portions 84 are provided on each of the upper and lower opening surfaces 55 of the case 5 so as to have a line-symmetrical shape with a straight line passing through the center of the circular pushing portion 82 as an axis of symmetry. It is formed in an arc shape with an angle slightly smaller than 90 degrees around.

  Next, the assembly procedure of the automobile door check device 1 will be described.

  First, in the assembling process, the case 5 is placed in a lateral orientation (position in which the accommodation hole 51 faces in the lateral direction), and the shoe 6 and the compression coil spring 7 are inserted into the accommodation hole 51 of the case 5 in this order using an automatic assembly machine. In the assembly process, since the case 5 is in the horizontal orientation, the orientation used in the description of the assembly procedure is different from the orientation used in the usage form of the automotive door check device 1.

  Next, in a state where the assembly jig of the automatic assembly machine is fitted in the recess 83 of the lid member 8, the fitting portion 84 of the lid member 8 is placed between the holding portion 52 and the holding portion 52 in the case 5. The lid member 8 is pushed from this state so that the fitting portion 84 fits in the gap A. The pushing force in this case is set to be larger than at least the force for compressing the compression coil spring 7.

  Then, while applying a pushing force to the lid member 8, the lid member 8 is rotated approximately 90 degrees in the clockwise direction in FIG. 6, and the fitting portion 84 of the lid member 8 is fitted to the pressing portion 52. The member 8 is fitted and fixed to the case 5 by rotating assembly. The rotational assembly of the lid member 8 with respect to the case 5 is reliably performed by the assembly jig of the automatic assembly machine engaging with the engaging portion 83a provided on the lid member 8 in the rotational direction. The rotation of the lid member 8 during rotation assembly is limited by the end of the fitting portion 84 coming into contact with the blocking portion 52a. Thereby, the cover member 8 can be reliably fixed to a regular assembly position.

  In addition, the assembly of the shoe 6, the compression coil spring 7 and the lid member 8 to the case 5 may be performed on either the left or right side after the left or right side, or may be performed on both the left and right sides simultaneously.

  Then, in a state where the shoe 6, the compression coil spring 7, and the lid member 8 are all assembled to the case 5, the link 4 is between the sliding portion 61 of one shoe 6 and the sliding portion 61 of the other shoe 6. The base end portion (the state in which the bracket 2 is not assembled at the right end portion in FIG. 7) is inserted from the left in FIG. 7 to obtain the state shown in FIG. Finally, the bracket 2 is assembled to the base end of the link 4 to complete.

  Since the lid member 8 can be fitted and fixed to the case 5 by rotating the lid member 8 with respect to the case 5 as described above, the compressed coil spring 7 in an expanded state is compressed in the housing hole 51 of the case 5 using another tool or the like. Since there is no need to maintain the state, the compression coil spring 8 can be brought into a compressed state simultaneously with the assembly of the lid member 8, and the efficiency of the assembly process can be improved.

  FIGS. 14-17 shows 2nd Example which concerns on the cover member 80 and the holding | suppressing part 520. FIG. In addition, in 2nd Example, since it is the same as 1st Example demonstrated based on FIGS. 1-13 except the part relevant to the cover member 80 and the holding | suppressing part 520, it is the same as 1st Example. Reference numerals are assigned and description is omitted.

  As shown in the plan view of FIG. 16, the lid member 80 has a lid portion 801 that has an elliptical shape having a long side direction (vertical direction in FIG. 16) and a short side direction (also the left-right direction), or a long elliptical shape. Then, fitting portions 804 and 804 that are fitted to the holding portions 520 and 520 provided in the case 5 are provided at both ends in the long side direction of the lid portion 801. On the surface of the lid portion 801, a cross-shaped engagement portion 803 is provided on which an assembly jig of the automatic assembly machine can be engaged in the rotation direction. Further, as shown in an enlarged view in FIGS. 15 and 16, the side surface of the fitting portion 802 has a lid with respect to the engaging protrusion 520 b provided at the base portion (corresponding to an upright portion 520 a described later) of the pressing portion 520. An engagement recess 805 that can be engaged in the rotation direction of the member 80 is provided.

  The holding part 520 is provided so as to extend from the standing part 520a provided on the opening surface 55 of the case 5 in the rotation direction of the lid member 80 (clockwise in FIGS. 15 and 16). The standing portion 520 a is provided so as to protrude from the opening surface 55 of the case 5 by a dimension corresponding to the thickness of the fitting portion 804 of the lid member 80. Therefore, a gap in which the fitting portion 804 of the lid member 80 is fitted from the rotation direction is provided between the pressing portion 520 and the opening surface 55.

  As in the first embodiment, in the assembly process, the lid member 80 is rotated counterclockwise in FIGS. 15 and 16 while being pushed toward the case 5 by the automatic assembly machine, so that the fitting portion 804 is held by the holding portion. By fitting to 520, the housing hole 51 is closed by being fitted and fixed to the case 5. The lid member 80 is rotated in the assembly process by the assembly jig of the automatic assembly machine engaging with the engaging portion 803 of the lid member 80 in the rotation direction. When the lid member 80 is fitted and fixed to the case 5, the engagement protrusion 520 b of the case 5 engages with the engagement recess 805 of the lid member 80 in the rotation direction, and the lid member 80 is fitted. Hold in a fixed position.

  As described above, also in the second embodiment, when the lid member 80 is rotationally fitted and fixed to the case 5 in the same manner as in the previous embodiment, the compression coil spring 7 is compressed by the receiving hole 51 at the same time. The accommodation hole 51 can be closed, and the assembly process can be made more efficient.

  FIG. 18 is a longitudinal sectional view of a third embodiment of the lid member 800. Note that the third embodiment is the same as the first embodiment except for the lid member 800 and the portion related to the lid member 800, and therefore the same reference numerals as those in the first embodiment are used and description thereof is omitted. .

  The lid member 800 includes a lid portion 8001 that closes the accommodation hole 51 of the case 5, and a pushing portion 8002 that is provided in the center of the back surface of the lid portion 8001 and fits in the accommodation hole 51 of the case 5. The outer peripheral surface is provided with a male screw portion 8003, and at the center of the surface of the lid portion 8001, a polygonal hole 8004 is provided in which an assembly jig of the automatic assembly machine can be engaged in the rotation direction.

  A female screw portion 5001 to which the male screw portion 8003 of the lid member 800 can be screwed is provided on the inner peripheral surface of the housing hole 51 in the case 5.

  In the third embodiment, the male screw portion 8003 of the lid member 800 is screwed into the female screw portion 5001 of the case 5 in a state where the shoe 6 and the compression coil spring 7 are accommodated in the accommodation hole 51 of the case 5. , The cover member 800 is fixed to the case 5 while compressing the compression coil spring 7 to completely close the housing hole 51 of the case 5.

  In the third embodiment, the male member 8003 is provided in the lid member 800 and the female screw portion 5001 is provided in the housing hole 51 of the case 5, but the female screw portion and the outer periphery of the case 5 are provided in the lid member 800 in reverse. You may provide an external thread part in a surface, respectively.

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 case 5 is fixed to the vehicle body B.
(2) After the lid members 8, 80, 800 are fitted and fixed to the case 5, the lid members 8, 80, 800 are welded to the case 5 by laser welding, ultrasonic welding, or the like.

DESCRIPTION OF SYMBOLS 1 Door check apparatus 2 Bracket 3 Pivot shaft 4 Link 4A Core material 41A collar part 4B Cover material 41 Fully open stopper 42 Shaft hole 43 Raised part 44 Depressed part 5 Case 51 Accommodating hole 51a Anti-rotation protrusion 52, 520 Holding part 52a Blocking portion 53 Through-hole 54 Guide portion 55 Opening surface 6 Shoe 61 Sliding portion 62 Spring accommodating recess 62a Circular protrusion 63 Projection 64 Cavity 7 Compression coil spring 8, 80, 800 Lid member 81, 801, 8001 Lid 82, 8002 Push-in part 83 Recess 83a, 803 Engagement part 84, 804 Fitting part 9 Bolt 91 Head 92 Screw part 10 Buffer member 10a Hole 11 Closure member 11a Cut hole 520a Standing part 520b Engagement protrusion 805 Engagement recess 5001 Female thread portion 8003 Male thread portion 8004 Polygonal hole B Car body D Door D1 Mounting surface

Claims (17)

A case made of a synthetic resin, which is fixed to either the mounting surface of the door of the automobile or the vehicle body, and has a housing hole that opens in a direction parallel to the mounting surface;
One end is pivotally supported by either the door or the vehicle body by a pivot shaft, and is formed by covering a metal core with a synthetic resin coating, and the case in the longitudinal direction. A link that is movably inserted;
A shoe housed in the housing hole of the case and capable of relatively moving along the longitudinal direction of the surface of the link;
A spring housed in the housing hole of the case and biasing the shoe toward the surface of the link;
A fully open stopper provided at the other end of the link to restrict the fully open position of the door;
By being rotated with respect to the case, the case is fixed to an opening surface in which the opening of the accommodation hole is formed to close the accommodation hole, and the spring is held in a compressed state in the accommodation hole. A synthetic resin lid member;
A vehicle door check device. The case has a plurality of pressing portions shaped outwardly projecting around the accommodation hole,
The lid member has a plurality of fitting portions opposed to the opening surface of the case, and the plurality of fitting portions are fitted into the plurality of holding portions by being rotated with respect to the case. The automobile door check device according to claim 1, wherein the vehicle door check device is fixed to the case. The case has a plurality of pressing portions extending in the rotation direction of the lid member around the accommodation hole,
The lid member has a shape having a long side direction and a short side direction, and is rotated with respect to the case so that both end portions in the long side direction are fitted to the plurality of pressing portions, respectively. The automobile door check device according to claim 1, wherein the vehicle door check device is fixed to the case.   4. The automobile door check device according to claim 2, wherein the case includes a blocking portion that restricts a rotation amount of the lid member with respect to the case. 5.   2. The automotive use according to claim 1, wherein the lid member is fixed to the case by being rotated with respect to the case and screwed into a female screw portion or a male screw portion provided in the case. Door check device. The female screw portion of the case is provided on an inner peripheral surface of the accommodation hole,
The lid member has a circular pressing portion that fits in the receiving hole on the back surface, and a male screw portion that is screwed into the female screw portion of the case is provided on the outer peripheral surface of the pressing portion. The automobile door check device according to claim 5.   The automobile door check device according to any one of claims 1 to 6, wherein a concave portion into which an assembly jig for assembling the lid member to the case is fitted is provided at the center of the surface of the lid member. .   8. The automotive door check device according to claim 7, wherein an engagement portion for engaging the assembly jig with respect to a rotation direction of the lid member is provided in the concave portion of the lid member.   The automobile door check device according to claim 1, wherein the lid member is welded to the case. The spring is a compression coil spring;
The said cover member has a pushing part which contacts the edge part of the said compression coil spring, and pushes the said compression coil spring to a compression direction, when fixed to the said case. The door check apparatus for motor vehicles described in 2.   The shoe has a cylindrical shape with a bottom, and is housed in the housing hole of the case so as to be movable in the axial direction of the compression coil spring, and has a spring housing recess for housing the compression coil spring in the axial direction. The automobile door check device according to claim 10.   12. A plurality of protrusions that are slidable in contact with the inner peripheral surface of the housing hole of the case and extend in the axial direction of the compression coil spring are provided on the outer peripheral surface of the shoe. The vehicle door check device as described. The housing hole of the case is polygonal in a cross-sectional view,
The automobile door check device according to claim 12, wherein the protruding portion of the shoe is engaged with a polygonal inner corner of the accommodation hole.   The automobile door check device according to claim 12 or 13, wherein a cavity for enabling elastic deformation of the protrusion is provided inside the protrusion of the shoe.   The automobile door check device according to any one of claims 1 to 14, wherein a bolt for fixing the case to the mounting surface has a head embedded in and fixed to the case.   The automobile door check device according to any one of claims 1 to 15, wherein the case includes a guide portion that regulates a swing of the link about the pivot shaft.   The automotive door check device according to any one of claims 1 to 16, wherein the fully open stopper is formed by twisting the other end of the core material by approximately 90 degrees.

Images