JP5961894B2 - Vehicle door hinge - Google Patents

Description

  The present invention relates to a vehicle door hinge for pivotally attaching a vehicle door to a vehicle body so as to be opened and closed.

  In the vehicle door hinge, as shown in FIG. 13, a metal fixed hinge member 100 fixed to the vehicle body B side by a bolt 110 and a door D side fixed by a bolt 120, and the fixed hinge member 100 vertically And a metal movable hinge member 140 that is rotatably connected by a hinge shaft 130 that faces the direction.

  The fixed hinge member 100 includes a mounted portion 101 fixed to the mounting panel B1 of the vehicle body B by a bolt 110, and extends from the upper and lower ends of the mounted portion 101 to the vehicle outer side (upper side in FIG. 13). The upper and lower support parts 103 having a hinge bearing hole 102 into which the hinge shaft 130 is inserted, and the rear end part (also the left part) of the attached part 101 are bent at an obtuse angle toward the outside of the vehicle. A connecting portion 104 that connects the rear ends of the support portion 103 is integrally formed. And the stopper surface 104a which controls the fully open position of the door D is formed in the front surface of the connection part 104 by contacting the stopper surface 141 of the movable hinge member 140 in a rotation direction (for example, refer patent document 1). .

Japanese Utility Model Publication No.59-30146

  However, the conventional vehicle door hinge has a structure in which the connecting portion 104 of the fixed hinge member 100 is continuously formed by obtuse bending at the rear end portion of the attached portion 101, and thus the attached portion 101 of the fixed hinge member 100. Among the contact surfaces that contact the mounting panel B1 of the vehicle body B, the rear end a is in front of the position of the hinge shaft 130, and for example, a load in the vehicle direction input to the door D due to a side collision or the like acts on the hinge shaft 130. Then, with the rear end a of the mounted portion 101 as a fulcrum, the front side is deformed so as to be bent from the mounted panel B1, which is not preferable in terms of strength. Moreover, in order to ensure intensity | strength, although it is necessary to thicken the plate | board thickness of the fixed hinge member 100, when doing in this way, the enlargement of a door hinge will be caused.

  In view of the above problems, an object of the present invention is to provide a vehicle door hinge that is excellent in strength while minimizing an increase in size.

In order to solve the above-described problem, the first invention includes a first hinge member fixed to a mounting panel of either the vehicle body or the door, and a first hinge member fixed to the other mounting panel of the vehicle body or the door. A vehicle door hinge comprising a second hinge member rotatably connected to a hinge member by a hinge shaft, wherein the second hinge member is fixed to the other mounting panel by a bolt and fixed A portion connected to the first hinge member so as to be rotatable by the hinge shaft, and a pair of support portions spaced apart from each other by a predetermined distance in the axial direction of the hinge shaft, and the attached portion. And a connecting portion that connects the pair of support portions, and the connecting portion is a portion that is continuous with the attached portion, and the contacted surface that comes into contact with the other attaching panel is the bolt. Position so as to enlarge the opposite side to, have a bulging portion that bulges to the opposite side, the bulging portion is a part of the connecting portion, inclined relative to the contacted surface It protrudes to the opposite side from the back part .

According to a second aspect of the present invention, there is provided a first hinge member fixed to either the mounting panel of the vehicle body or the door, and a hinge shaft attached to the first hinge member fixed to the other mounting panel of the vehicle body or the door. A vehicle door hinge including a second hinge member connected to be rotatable, wherein the second hinge member is fixed to the other attachment panel by a bolt so as to face the other attachment panel, and the first hinge. A pair of members pivotably connected to the member by the hinge shaft, the pair of support portions spaced apart from each other by a predetermined distance in the axial direction of the hinge shaft, and the pair of support portions. The amount of rotation of the first hinge member is limited to the fully opened position by contacting the first stopper portion of the first hinge member at the end of the connection portion and the connecting portion that connects the two. 2 stopper portions, and the connecting portion is located in a portion continuous with the attached portion, and expands the contacted surface contacting the other mounting panel to the side opposite to the side where the bolt is located. A bulging portion that bulges to the opposite side, and the bulging portion is a part of the connecting portion and protrudes to the opposite side from a back surface portion inclined with respect to the contacted surface. To do .

  Further preferably, in the first or second aspect of the invention, in a plan view seen from the axial direction of the hinge shaft, an end of the contacted surface enlarged by the bulging portion, and a center of the hinge shaft The bulging portion is bulged to the opposite side so that a line connecting the center line of the bolt and the intersection of the contacted surface becomes an acute triangle.

  Still preferably, in any one of the first to third inventions, the bulging portion bulges in an arc shape toward the opposite side so that a ridge line is parallel to the axial direction of the hinge shaft.

  Still preferably, in any one of the first to fourth inventions, the bolt is a single piece and is fixed to a bolt insertion hole provided in the attached portion of the second hinge member. In addition, by tightening a male screw portion inserted into a mounting hole provided in the other mounting panel and a nut that can be screwed into the male screw portion inserted into the mounting hole, the bolt is attached to the opening edge of the mounting hole. It has integrally a non-rotating protrusion that can be engaged in the rotational direction of the.

  Furthermore, preferably, in any one of the first to fourth inventions, the bolt is a single piece and is inserted into a bolt insertion hole provided in the attached portion of the second hinge member. It has a male thread part inserted in a mounting hole provided in the other mounting panel, and the mounted part of the second hinge member can be screwed into the male thread part of the bolt inserted in the mounting hole. By tightening the nut, the other mounting panel is integrally provided with an anti-rotation protrusion that can be engaged with the rotation direction of the bolt.

  In the present invention, a bulging portion is provided at the connecting portion of the second hinge member, and the contacted surface of the attached portion is enlarged to the side opposite to the side where the bolt for fixing the attached portion to the attachment panel is located. Accordingly, it is possible to improve the fixing strength of the second hinge member with respect to the mounting panel while minimizing the increase in size of the second hinge member.

It is a perspective view of the door hinge concerning this invention and the left front part of a vehicle body. It is a disassembled perspective view of a door hinge similarly. It is a perspective view of a door hinge similarly. It is a front view of a door hinge similarly. It is a side view of the door hinge at the time of seeing from the arrow V direction in FIG. FIG. 6 is a rear view of the door hinge when viewed from the direction of arrow VI in FIG. 5. It is a top view of the door hinge at the time of seeing from the arrow VII direction in FIG. It is a top view of a door hinge when a door exists in a full open position. It is an expanded sectional view of the principal part of a door hinge when a door exists in a full open position. It is a side view of the door hinge at the time of seeing from the vehicle inner side in another Example. It is the XI-XI sectional view enlarged view in FIG. It is an enlarged front view which shows the modification of an attachment hole. It is a top view of the door hinge for demonstrating a prior art.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best embodiment of the invention will be described with reference to the drawings. In the following description, the left side in FIG. 4 is “vehicle inside”, the right side is “vehicle outside”, the left side in FIG. 5 is “front”, and the right side is “rear”.

  The door hinge 1 is a movable hinge member 2 constituting a first hinge member fixed to the door D side and a movable hinge member 2 fixed to the vehicle body B side and rotatably connected to the movable hinge member 2 by a vertical hinge shaft 4. And a fixed hinge member 3 that forms two hinge members, and the door D is pivotally attached to the vehicle body B so as to be opened and closed.

  The door hinge 1 is usually used in a pair as shown in FIG. 1, but the upper and lower door hinges 1 have the same main part. Therefore, in the following description, the upper door hinge 1 is representative. explain.

  The movable hinge member 2 is formed by pressing a metal plate material, and is attached to upper and lower attached portions 21 and 21 fixed by bolts 5 on the door D side, and the hinge shaft 4 from both the attached portions 21 and 21. The upper and lower support portions 22, 22 extending in a direction perpendicular to each other, and the upper and lower support portions 22, 22 are connected to each other and a connection portion 23 parallel to the hinge shaft 4 is integrally formed. A movable stopper portion (first stopper portion) 23 a parallel to the hinge shaft 4 is formed on the end surface of 23 (a plate thickness surface that abuts a fixed stopper portion 33 a described later of the fixed hinge member 3).

  The fixed hinge member 3 is formed by pressing a metal plate material. The fixed hinge member 3 is fixed to the mounting panel B1 on the vehicle body B side by bolts 7 and nuts 8 and the upper and lower portions of the mounted portion 31. In this case, the upper and lower support portions 32, 32 extending to the vehicle exterior so as to be perpendicular to the hinge shaft 4 and spaced apart from each other by a predetermined distance in the axial direction of the hinge shaft 4 are connected to the upper and lower support portions 32, 32. In addition, a connecting portion 33 is formed integrally with the rear end of the attached portion 31 and extending to the vehicle exterior side.

  In the movable hinge member 2, the support portions 22 and 22 are disposed between the upper and lower support portions 32 and 32 of the fixed hinge member 3, and the shaft holes 22 a and 32 a provided in the support portions 22 and 32 are hinged in the vertical direction. By inserting the shaft 4, the shaft 4 is rotatably connected to the fixed hinge member 3.

  In the center portion of both the support portions 32, 32 in the fixed hinge member 3 in the vehicle interior / exterior direction, the two support portions 32, 32 are bent so that the support portions 32, 32 are not deformed downward due to the weight of the door D. The inclined surfaces 32b, 32b for increasing the strength are bent so as to extend in an oblique direction with respect to the front-rear width of the support portions 32, 32.

  The upper and lower inclined surfaces 32b and 32b are formed such that the distance in the vertical direction between the upper and lower support parts 32 and 32 is narrower on the side closer to the hinge shaft 4 than on the side closer to the attached part 31. Thereby, since the distance between the upper and lower support parts 22 and 22 in the movable hinge member 2 can be shortened, the door hinge 1 can be reduced in size and weight. The slope 32b is formed so as to straddle a bulging portion 33b described later. Thereby, since the bulging part 33b is located in the vicinity of the slope 32b, it is excellent in strength and hardly deforms.

  The fixed hinge member 3 is located at the portion of the connecting portion 33 near the hinge shaft 4 (in other words, the end of the connecting portion 33) and faces the movable stopper portion 23a in the turning direction (clockwise in FIGS. 7 and 8). By hitting, a fixed stopper portion (second stopper portion) 33a for restricting the fully open position of the door D by limiting the amount of rotation of the movable hinge member 2 is formed. As shown in FIGS. 4 and 5, the fixed stopper portion 33a is formed by embossing so as to protrude in a direction opposite to the movable stopper portion 23a. As a result, the fixed stopper portion 33a is excellent in strength and hardly deforms.

  Furthermore, the fixed hinge member 3 is only a portion that is continuous with the rear end of the attached portion 31 and both the support portions 32 and 32 in the connecting portion 33 and is not formed with the fixed stopper portion 33a. A bulging portion 33b that bulges to the rear side (the side opposite to the side where the bolt 7 is located) is formed by pressing.

The bulging portion 33b has a ridgeline X (see FIGS. 3 and 6) parallel to the axial direction (vertical direction) of the hinge shaft 4, and a back surface portion 33c between the bulging portion 33b and the fixed stopper portion 33a in the connecting portion 33. (A portion of the connecting portion 33 and a portion inclined obliquely upward to the right in FIG. 7-9 with respect to the contacted surface 31 a) protrudes rearward in an arc shape, and the attached portion 31 of the fixed hinge member 3. The surface to be contacted (the surface facing the mounting panel B1 of the vehicle body B) 31a is enlarged to the rear side (the side opposite to the side where the bolt 7 is located). Thus, the entire connecting portion 33 does not protrude rearward (in the direction approaching the front surface of the door D), and the rear end of the contacted surface 31a enlarged by the bulging portion 33b (the body B on the contacted surface 31a). It is possible to position the rearmost part a) in contact with the mounting panel B <b> 1 behind the hinge shaft 4.

  When the rear end a of the contacted surface 31a is positioned behind the hinge shaft 4, the rear end a of the contacted surface 31a in a plan view as viewed from the axial direction of the hinge shaft 4 as shown in FIG. A straight line connecting the three points of the center c of the hinge shaft 4 and the fixing point b of the bolt 7 (intersection of the center line of the bolt 7 and the contacted surface 31a) forms an acute triangle.

The above, by bulging portion 33b provided on the connecting portion 33 of the fixed hinge member 3, the contact surface 31a of the attachment portion 31 is expanded to the rear of the fixed hinge member 3, the contact surface 31a of the fixed hinge member 3 Since the rear end a is located behind the hinge shaft 4, for example, when a load is input to the fixed hinge member 3 through the door D, the movable hinge member 2, and the hinge shaft 4 due to a side collision of the vehicle. However, since the enlarged surface of the rear end a located rearward of the hinge shaft 4 on the contacted surface 31a abuts against the mounting panel B1 on the vehicle body B side, the door hinge 1 is increased in size as in the prior art. Without inviting, it is possible to suppress deformation such that the front side of the attached portion 31 of the fixed hinge member 3 falls from the attachment panel B1 of the vehicle body B. Further, when the door D is opened, even if the movable stopper portion 23 a of the movable hinge member 2 abuts against the fixed stopper portion 33 a of the fixed hinge member 3, the impact load at that time is applied to the attached portion 31. Since it can be received at the enlarged portion, it is possible to suppress deformation of the fixed hinge member 3. Further, the connecting portion 33 is a bulging portion 33b that bulges rearward in an arc shape, a back surface portion 33c that is recessed from the bulging portion 33b, and a fixed portion that continues to the bulging portion 33b via the back surface portion 33c. to formed continuously with the stopper portion 33a, the section modulus of the connecting portion 33 is increased, the strength of the connecting portion 33 can be further improved.

  Furthermore, since the bulging portion 33b is formed in a continuous portion with the attached portion 31 in the connecting portion 33 and bulged rearward from the back surface portion 33c of the connecting portion 33, the movable stopper portion 23a and the fixed stopper portion 33a There is no need to change the position from the current position. Moreover, since the bulging part 33b is provided in a part of the connection part 33, since the whole support part 32 does not expand back, the enlargement of the fixed hinge member 3 can be suppressed to the minimum. Further, since the bulging portion 33b can be provided in a place corresponding to a space surrounded by the connecting portion 104 shown in FIG. 13, the front surface of the door D, and the mounting panel B1 of the vehicle body B, the layout of the vehicle body B is improved. Is the same as the case of using the door hinge of the prior art.

  Further, the attached portion 31 of the fixed hinge member 3 is provided with a single bolt insertion hole 34 in which the bolt 7 is press-fitted from the outside of the vehicle and is fixed to prevent rotation. Further, a detent means is formed on the outer periphery of the bolt 7. In the embodiment shown in FIGS. 1 to 9, mainly as shown in FIG. 5, the anti-rotation means is integrally provided on the outer periphery of the bolt 7 and has two point-like anti-rotations that protrude slightly outward. A protrusion 71 is used. As a result, the fixing hinge member 3 is fastened and fixed to the mounting panel B1 of the vehicle body B using the bolt 7, so that the rotation prevention projection 71 of the bolt 7 is engaged with the attachment hole B2 of the vehicle body B, and the door D is engaged. A positional shift around the bolt 7 can be prevented.

  As shown in FIG. 5, the bolt 7 is provided between the upper and lower support portions 32, 32 in the attached portion 31 of the fixed hinge member 3. Thereby, even if the load from the door D acts on the fixed hinge member 3 via the hinge shaft 4, the attached portion 31 fixed to the bolt 7 is deformed by the upper and lower support portions 32, 32 being deformed. Since it does not occur easily, peeling between the bolt 7 and the attached portion 31 can be prevented, and the strength can be improved.

  10 and 11 show another embodiment in which the detent means is formed integrally with the fixed hinge member 3.

  The bolt 70 according to another embodiment includes a head 701 having an enlarged diameter from the outside of the vehicle, a serration shaft portion 702 having a smaller diameter than the head 701 and serrations on the outer peripheral surface, and a non-screw portion 703 having a smaller diameter than the serration shaft portion 702. The male screw portion 704 having a diameter smaller than that of the non-screw portion 703 is formed in this order, and the serration shaft portion 702 is press-fitted into the bolt insertion hole 34 of the fixed hinge member 3 from the outside of the vehicle to the attached portion 31 of the fixed hinge member 3. The detent is fixed. In addition, the volt | bolt 70 is the same as the volt | bolt 7 of the said Example except not having the rotation prevention protrusion 71 of the said Example shown to FIGS.

  Around the bolt insertion hole 34 in the attachment portion 31 of the fixed hinge member 3, three anti-rotation projections 311 forming anti-rotation means projecting a predetermined amount toward the attachment panel B 1 of the vehicle body B are integrally formed by embossing. Is done. The anti-rotation projection 311 contacts the periphery of the mounting hole B1 of the vehicle body panel B1 by fixing the fixed hinge member 3 to the mounting panel B1 of the vehicle body panel B, whereby one of the periphery of the mounting hole B1 in the vehicle body panel B1. By engaging the mounting panel B1 with the portion being recessed toward the inside of the vehicle, the rotation of the mounted portion 31 of the fixed hinge member 3 to the mounting panel B1 is prevented.

  With the bolt 70 inserted in advance into the bolt insertion hole 34 of the fixed hinge member 3 and fixed with the serration shaft portion 702 to prevent rotation, the male screw portion 704 of the bolt 70 is inserted into the mounting hole B2 provided in the mounting panel B1. At the same time, when the nut 8 is screwed into the male screw portion 704 protruding to the back side of the mounting panel B1 and tightened, the three anti-rotation protrusions 311 are arranged around the mounting hole B2 of the mounting panel B1, as shown in FIG. In a state in which a part of is recessed toward the inside of the vehicle, the rotation is engaged with the mounting panel B1. Thereby, the fixed hinge member 3 is fixed to the mounting panel B1 by the three rotation prevention projections 311 engaging with the mounting panel B1. Further, the bolt 70 is screwed into the male threaded portion 704 of the bolt 70 because the serration shaft portion 702 engages with the inner peripheral edge of the bolt insertion hole 34 and is fixed to the mounted portion 31 of the fixed hinge member 3. When tightening the nut 8 strongly, the nut 8 can be securely tightened without causing the bolt 70 to rotate freely, and the fixed hinge member 3 can be securely fixed to the mounting panel B1. This is the same also in the said Example.

  Further, even if the fixed hinge member 3 is fixed to the mounting panel B1 with a single bolt 70, the anti-rotation protrusion 311 engages with the mounting panel B1 so that the fixed hinge member 3 is connected to the door D. It is possible to prevent the mounting panel B1 from being cracked by preventing the weight 70 from rotating around the bolt 70. This is the same also in the said Example.

  Although the embodiment of the present invention has been described above, the following various modifications and changes can be made to the present embodiment without departing from the gist of the present invention.

(I) The door D to which the present invention is applied is replaced with a swing-type door that swings in the horizontal direction about the vertical axis and opens and closes, and a door that swings in the vertical direction around the horizontal axis and opens and closes. And
(Ii) A plurality of bolts 7 and 70 for fixing the fixed hinge member 3 are provided.
(Iii) The bolts 7 and 70 are fixed to the vehicle body B side, and the bolts 7 and 70 are inserted into holes provided in the fixed hinge member 3 and the nut 8 is fastened.
(Iv) The stoppers 23a and 33a of the movable hinge member 2 and the fixed hinge member 3 are abolished. Instead, the stoppers 23a and 33a are provided between the door D and the vehicle body B and are used to maintain the opening position of the door D. A door check link device regulates the fully open position of the door.
(V) The movable hinge member 2 is provided with a bulging portion having the same function as the bulging portion 33b.
(Vi) The movable hinge member 2 is fixed to the door D with a single bolt, and the bolt or the movable hinge member 2 is provided with a detent means.
(Vii) As shown in FIG. 12, the mounting hole B2 provided in the mounting panel B1 is preliminarily formed with a plurality of notches B2a on the opening edge of the circular mounting hole B2 with which the anti-rotation protrusions 71 or 311 are engaged. Shall be.
(Viii) The means for locking and fixing the bolts 7 and 70 to the bolt insertion hole 34 is welding instead of serration.
(Ix) The number of detent protrusions 71 and 311 is changed as appropriate.

1 door hinge 2 movable hinge member (first hinge member)
3 Fixed hinge member (second hinge member)
4 Hinge shaft 5 Bolt 7 Bolt 8 Nut 21 Mounted portion 22 Support portion 22a Shaft hole 23 Connecting portion 23a Movable stopper portion (first stopper portion)
31 attached portion 31a contacted surface 32 support portion 32a shaft hole 32b slope 33 connecting portion 33a fixed stopper portion (second stopper portion)
33b bulging portion 33c back surface portion 34 bolt insertion hole 70 bolt 71 non-rotating projection (rotating preventing means)
311 Non-rotating protrusion (anti-rotating means)
701 Head 702 Serration shaft portion 703 Non-threaded portion 704 Male threaded portion B Car body B1 Mounting panel B2 Mounting hole D Door X Ridge line

Claims (6)

A first hinge member fixed to either the mounting panel of the vehicle body or the door, and fixed to the other mounting panel of the vehicle body or the door and rotatably connected to the first hinge member by a hinge shaft A vehicle door hinge comprising a second hinge member,
The second hinge member is a portion to be fixed to the other attachment panel by a bolt and fixed to the first hinge member by a hinge shaft so as to be rotatable by the hinge shaft. A pair of support portions that are separated from each other by a predetermined distance in the axial direction of the shaft, and a connecting portion that is continuous with the attached portion and connects the pair of support portions,
The connecting portion is in a portion continuous with the attached portion, and bulges to the opposite side so as to expand the contacted surface that contacts the other attachment panel to the side opposite to the side where the bolt is located. the bulging portion to possess,
The bulge portion is a part of the connecting portion, and protrudes to the opposite side from a back surface portion inclined with respect to the contacted surface . A first hinge member fixed to either the mounting panel of the vehicle body or the door, and fixed to the other mounting panel of the vehicle body or the door and rotatably connected to the first hinge member by a hinge shaft A vehicle door hinge comprising a second hinge member,
The second hinge member is a portion to be fixed to the other attachment panel by a bolt and fixed to the first hinge member by a hinge shaft so as to be rotatable by the hinge shaft. A pair of support portions that are spaced apart from each other by a predetermined distance in the axial direction of the shaft; a connection portion that is connected to the attached portion and that connects the pair of support portions; and an end portion of the connection portion; A second stopper portion that limits the amount of rotation of the first hinge member to a fully open position by contacting the first stopper portion of the one hinge member;
The connecting portion is in a portion continuous with the attached portion, and bulges to the opposite side so as to expand the contacted surface that contacts the other attachment panel to the side opposite to the side where the bolt is located. Having a bulging portion that
The bulge portion is a part of the connecting portion , and protrudes to the opposite side from a back surface portion inclined with respect to the contacted surface .   In a plan view seen from the axial direction of the hinge shaft, the end of the contacted surface enlarged by the bulging portion, the center of the hinge shaft, and the intersection of the center line of the bolt and the contacted surface The vehicle door hinge according to claim 1 or 2, wherein the bulging portion is bulged to the opposite side so that a line connecting the two becomes an acute-angled triangle.   The vehicular door hinge according to any one of claims 1 to 3, wherein the bulging portion bulges in an arc shape toward the opposite side so that a ridge line is parallel to an axial direction of the hinge shaft.   The bolt is a single, and is fixed to a bolt insertion hole provided in the attached portion of the second hinge member and fixed to the bolt, and is inserted into an attachment hole provided in the other attachment panel. And a locking protrusion that can be engaged with the rotation direction of the bolt at the opening edge of the mounting hole by tightening a nut that can be screwed into the male screw portion inserted into the mounting hole. The door hinge for vehicles in any one of Claims 1-4 characterized by the above-mentioned. The bolt is single and has a male screw part inserted into a bolt insertion hole provided in the attached part of the second hinge member and inserted into an attachment hole provided in the other attachment panel. And
The attached portion of the second hinge member is fastened to the other attachment panel with respect to the rotation direction of the bolt by tightening a nut that can be screwed into the male screw portion of the bolt inserted into the attachment hole. The vehicle door hinge according to any one of claims 1 to 4, further comprising an engaging rotation preventing projection integrally.

Images