JP5732677B2 - Vehicle door hinge - Google Patents

Description

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

  A vehicle door hinge includes a fixed hinge member fixed to the vehicle body side of the vehicle, and a movable hinge member fixed to the vehicle door side and rotatably connected to the fixed hinge member by a hinge shaft. A fully open position of the door is regulated by contacting a stopper portion provided on the hinge member with a stopper portion corresponding to the plate thickness of the hinge member (see, for example, Patent Document 1).

Japanese Utility Model Publication No.59-30146

  However, the vehicle door hinge described in Patent Document 1 is fixed to the vehicle body B as shown in FIG. 11, particularly when the thickness of the fixed hinge member is lowered in order to reduce the size and weight. When a repeated load or a high load in the opening direction of the door D (clockwise around the hinge shaft 102 in FIG. 11) acts on the stopper portion 100a of the hinge member 100, the stopper portion 100a of the fixed hinge member 100 is particularly a solid line. Deformation from the position before deformation shown to the position shown by the two-dot chain line, the contact relationship between the stopper portion 101a of the movable hinge member 101 fixed to the door D and the stopper portion 100a of the fixed hinge member 100 changes, and the door D In addition to being unable to keep the fully open position constant, there is a risk that contact between the stopper portions 100a and 101a will eventually be lost.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle door hinge that can maintain a contact relationship between both stopper portions even when the stopper portion is deformed, and can be reduced in size and weight. .

In order to solve the above problems, the present invention provides a first hinge member fixed to one of a vehicle body and a door, and a first hinge member fixed to either the vehicle body or the door and connected to the first hinge member by a hinge shaft. A second hinge member that is movably connected, and a first stopper portion that is formed on the surface of the plate thickness of the first hinge member and is parallel to the hinge shaft abuts against the second stopper portion of the second hinge member. by contacting, in the vehicle door hinge which is adapted to restrict the fully open position of the door, at a position close to the second stopper portion in the second hinge member, and said first stopper in rotation of the door An engaging portion that protrudes in a direction slightly opposite to the first stopper portion from the second stopper portion at a position slightly inside the arc locus centering on the hinge axis of the first stopper portion drawn by the portion. Provided, when the first stopper portion abuts on the second stopper portion at the fully open position of the door and the second stopper portion is deformed in the opening direction of the door, the corner portion of the first stopper portion is The door is prevented from rotating in the opening direction by engaging with the engaging portion.

  Further, preferably, the engaging portion is formed by embossing or bending.

  In the present invention, when the second stopper portion of the second hinge member is deformed in the door opening direction, the first stopper portion of the first hinge member is engaged with the engaging portion formed on the second hinge member. Therefore, even if the thickness of the second hinge member is reduced, it is possible to improve the strength to prevent rotation in the door opening direction, and to reduce the size and weight of the door hinge. Can be possible.

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 front view of a door hinge similarly. FIG. 4 is a side view of the door hinge as viewed from the direction of arrow IV in FIG. 3. It is a top view of the door hinge seen from the arrow V 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 an expanded sectional view of the important section of a door hinge when the 2nd stopper part of the 2nd hinge member changes. It is an expanded sectional view of the important section of a door hinge when another example is shown and a door exists in a full open position. It is an expanded sectional view of the important section of a door hinge when the 2nd stopper part of the 2nd hinge member similarly changed. It is an expanded sectional view of the principal part of the door hinge for demonstrating a prior art.

  Embodiments of the present invention will be described below with reference to FIGS. In the following description, the left and right sides in FIGS. 4 to 6 are defined as “front” and “rear” of the door hinge 1, and the upper and lower sides in FIGS. "Outside".

  The door hinge 1 is a metal first hinge member 2 fixed to the door D side and a metal hinge member fixed to the vehicle body B side and rotatably connected to the first hinge member 2 by a vertical hinge shaft 4. The second hinge member 3 is provided, and the door D is pivotally attached to the vehicle body B so as to be opened and closed. In addition, this invention is not limited to a present Example, The 1st hinge member 2 may be fixed to the vehicle body B side, and the 2nd hinge member 3 may be fixed to the door D side.

  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 first hinge member 2 is formed by pressing a metal plate material, and includes upper and lower mounting portions 21 and 21 fixed to the mounting hole D1 on the door D side by bolts and nuts 5, and both mounting portions 21 and 21. Upper and lower support portions 22, 22 extending in a direction perpendicular to the hinge shaft 4, and a connection portion 23 connecting the upper and lower support portions 22, 22 and extending in a direction parallel to the hinge shaft 4. And a first stopper portion 23a parallel to the hinge shaft 4 is formed on the end surface of the connecting portion 23 (a surface having a plate thickness that comes into contact with a later-described second stopper portion 33a of the second hinge member 3).

  The second hinge member 3 is formed by pressing a metal plate material, and is attached to a mounting hole B1 on the vehicle body B side by a bolt and a nut 6; And upper and lower support portions 32, 32 extending to the vehicle outer side so as to be at right angles to 4, and a connecting portion 33 between the upper and lower support portions 32, 32 and extending from the rear portion of the attachment portion 31 to the vehicle outer side. The support portions 22 and 22 of the first hinge member 2 are arranged between the upper and lower support portions 32 and 32, and the hinge shaft 4 is inserted into the shaft holes 22a and 32a provided in the support portions 22 and 32, respectively. Thus, the first hinge member 2 is pivotally connected. The slope 32b is formed so as to straddle a second stopper 33a described later. Thereby, since the 2nd stopper part 33a is located in the slope 32b vicinity, it is excellent in intensity | strength and cannot raise | generate a deformation | transformation easily.

  In the second hinge member 3, the two support portions 32, 32 are arranged at the substantially central portion of the both support portions 32, 32 in the vehicle interior / exterior direction so that the support portions 32, 32 are not deformed downward due to the weight of the door D. The inclined surface 32 b for increasing the bending strength is formed by bending so as to extend in an oblique direction with respect to the front-rear width of the support portion 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 attachment part 31.

  The first stopper member 23a of the first hinge member 2 comes into contact with the surface of the connecting portion 33 of the second hinge member 3 facing the first stopper member 23a of the first hinge member 2 in the door D opening direction. A second stopper portion 33a parallel to the hinge shaft 4 for restricting the fully open position of the door D is formed. As shown in FIGS. 3 and 4, the second stopper portion 33a is formed by embossing so as to protrude in a direction opposite to the first stopper portion 23a. Thereby, the 2nd stopper part 33 is excellent in intensity | strength, and does not raise | generate a deformation | transformation easily.

  Further, when the door D is in the fully open position, that is, as shown in FIGS. 6 and 7, at the end on the vehicle outer side of the connecting portion 33 of the second hinge member 3, that is, the position close to the second stopper portion 33 a, When the first stopper portion 23a of the first hinge member 2 is in contact with the second stopper portion 33a of the second hinge member 3, the arc locus T (see FIG. 7) and an engaging portion that protrudes in a direction slightly opposite to the first stopper portion 23a than the second stopper portion 33a (counterclockwise about the hinge shaft 4 in FIGS. 5 to 7). The projecting portion 34 is formed by embossing.

In a state where the door hinge 1 is attached to the vehicle body B and the door D, when the door D is rotated from the closed position toward the fully opened position, the first hinge member 2 is moved from the position shown in FIG. 5 corresponding to the closed position of the door D. The first stopper portion 23a of the first hinge member 2 is turned to the second stopper of the second hinge member 3 at the position shown in FIGS. Further contact with the surface of the portion 33a is prevented, and the door D is stopped at the fully open position. In this case, the second stopper portion 33a is embossed in a state of projecting in a direction opposite to the first stopper portion 23a, and is located in the vicinity of the inclined surface 32b having excellent strength. Therefore, the second stopper portion 33a is excellent in strength and hardly deforms. .
At this time, the second hinge member 3 including the second stopper portion 33a is connected by a high load acting on the second stopper portion 33a due to the deterioration of the second stopper portion 33a due to repeated load or the door D being opened vigorously. When the portion 33 is deformed in the opening direction of the door D, the first hinge member 2 is slightly rotated in the opening direction from the fully opened position shown in FIGS. 6 and 7 as shown in FIG. When the corner portion (the corner portion on the side close to the engaging portion 34) 23b of the first stopper portion 23a is engaged with the engaging portion 34 of the second hinge member 3 in the opening direction at the moved position, the first The contact relationship between the stopper portion 23a and the second stopper portion 33a is maintained, and rotation of the second hinge member 3 in the opening direction is suppressed. In this case, since the engaging portion 34 is formed by embossing and is excellent in strength, the second stopper portion 33a including the engaging portion 34 while ensuring the engagement with the first stopper portion 23a in the opening direction. Can be reduced in size. As a result, even when the plate thickness of the second hinge member 3 is made thinner than before, the contact relationship between the first stopper portion 23a and the second stopper portion 33a is maintained, so that the door hinge 1 can be reduced in size and weight. Can be made possible.

  9 and 10 show another embodiment of the engaging portion formed in the connecting portion 33 of the second hinge member 3. The engaging portion of another embodiment is formed by bending as a bent portion 35 at the end of the connecting portion 33 of the second hinge member 3 on the vehicle outer side, that is, at a position close to the second stopper portion 33a. As shown in FIG. 9, when the first stopper portion 23a of the first hinge member 2 is in contact with the second stopper portion 33a of the second hinge member 3, the bent portion 35 is in contact with the first stopper portion 23a. In a direction slightly inward of the arc trajectory T centered on the hinge shaft 4 and opposite to the first stopper portion 23a rather than the second stopper portion 33a (reversely centered on the hinge shaft 4 in FIGS. 9 and 10). It is formed by bending so as to protrude in the clockwise direction. In other embodiments, the configuration other than the bent portion 35 is the same as that of the above-described embodiment, and therefore, the same reference numerals as those of the above-described embodiment are attached to FIGS.

  In another embodiment, when the door D rotates from the closed position toward the fully opened position, the first hinge member 2 rotates about the hinge shaft 4 and corresponds to the fully opened position of the door D in FIG. When the first stopper portion 23a of the first hinge member 2 contacts the second stopper portion 33a of the second hinge member 3 at the position shown in FIG. . At this time, a high load acts on the second stopper portion 33a due to the deterioration of the second stopper portion 33a due to repeated loads, the door D being opened vigorously, etc., and the connecting portion of the second hinge member 3 including the second stopper portion 33a. When the door 33 is deformed in the opening direction of the door D, the first hinge member 2 is slightly rotated in the opening direction from the fully opened position shown in FIG. 9 as shown in FIG. Thus, the first stopper portion 23a can be engaged with the bent portion 35 of the second hinge member 3 in the opening direction, and the first hinge member 2 can be prevented from rotating in the opening direction. In this case, the bent portion 35 is formed by bending at a position close to the second stopper portion 33a, and can have a large engagement allowance with the second stopper portion 23a. Engagement in the opening direction can be ensured. Further, since the bent portion 35 is accommodated between the support portions 32 and 32, the second stopper portion 23a including the bent portion 35 can be downsized.

  In the other embodiments, as in the above-described embodiments, the contact relationship between the first stopper portion 23a and the second stopper portion 33a is maintained even when the thickness of the second hinge member 3 is made thinner than the conventional one. Since it is held, the door hinge 1 can be reduced in size and weight.

DESCRIPTION OF SYMBOLS 1 Door hinge 2 1st hinge member 3 2nd hinge member 4 Hinge shaft 5 Bolt, nut 6 Bolt, nut 21 Attachment part 22 Support part 22a Shaft hole 23 Connection part 23a 1st stopper part 23b Corner | angular part 31 Attachment part 32 Support part 32a Shaft hole 32b Slope 33 Connecting portion 33a Second stopper portion 34 Protruding portion (engaging portion)
35 Bent part (engagement part)
B Body D Door

Claims (3)

A first hinge member fixed to one of the vehicle body and the door; a second hinge member fixed to either the vehicle body or the door and rotatably connected to the first hinge member by a hinge shaft; And a first stopper portion formed on the surface of the plate thickness of the first hinge member and parallel to the hinge shaft abuts on the second stopper portion of the second hinge member, thereby restricting the fully open position of the door. In the door hinge for a vehicle,
In the position close to the second stopper portion in the second hinge member, and a slight arc trajectory around said hinge axis of the first stopper portion to which the first stopper portion during rotation of the door is drawn the inner position, the engaging portion which projects opposite direction to the first stopper portion than the second stopper portion is provided at,
When the first stopper portion comes into contact with the second stopper portion at the fully open position of the door and the second stopper portion is deformed in the opening direction of the door, the corner portion of the first stopper portion is engaged. The door hinge for vehicles suppresses rotation to the opening direction of the said door by engaging with a part.   The vehicle door hinge according to claim 1, wherein the engaging portion is formed by embossing.   The vehicle door hinge according to claim 1, wherein the engaging portion is formed by bending.

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