JP4331860B2 - Door hinge with checker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door hinge, and more particularly to an improvement of a door hinge provided with a checker that provides stepwise resistance to opening and closing of a door.
[0002]
[Prior art]
Conventionally, such door hinges are already known, for example, in Japanese Patent Publication No. 53-11739.
[0003]
[Problems to be solved by the invention]
In the above-mentioned conventional one, one end of a torsion bar having an intermediate portion inserted through a movable plate rotatably supported by a fixed plate is formed in a substantially U shape, and is inserted into and engaged with the fixed plate. A roller that elastically abuts and engages with a check cam provided on the plate is attached to the other end portion of the torsion bar formed in a substantially U shape. For this reason, it is necessary to perform the assembly work of the torsion bar in a state where the movable plate is assembled to the fixed plate, and the assembly work is complicated.
[0004]
The present invention has been made in view of such circumstances, and an object thereof is to provide a door hinge with a checker that facilitates the assembly of a torsion bar.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention includes a first hinge member having first and second side plates parallel to each other and fixed to one of a vehicle body and a door, and the first and second side plates. A second hinge member having an insertion arm portion inserted therebetween and fixed to the other of the vehicle body and the door, and a hinge pin for connecting the insertion arm portion and the first and second side plate portions so as to be relatively rotatable. And a checker door having a checker that imparts stepwise moderation resistance to the relative rotation of the first and second hinge members, wherein the checker includes a plurality of checkers arranged along the relative rotation direction of the two hinge members. A check cam provided on the second hinge member having a convex portion and a torsion bar attached to the first hinge member so as to be capable of elastically engaging with the check cam; Is formed in a substantially U shape at both ends of a shaft portion that extends in parallel with the hinge pin and penetrates the first and second side plate portions, and a base portion of a support portion that is supported by the first side plate portion. An end and a base end of an engaging portion formed in a substantially U shape so as to elastically engage the tip end portion with the check cam are integrally connected, and the shaft portion is connected to the first and second shafts. The engagement portion provided at the second side plate portion is inserted into the second side plate portion, and the distal end portion of the engagement portion is bent by the action of an external force in a state where the support portion is supported by the first side plate portion. The engagement hole is inserted into and engaged with the hole, and the engagement hole is formed in an arc shape centered on the axis of the shaft portion so as to allow the engagement portion to bend around the axis of the shaft portion. It is characterized by.
[0006]
According to such a configuration, when the torsion bar is assembled, an external force is applied in a state where the shaft portion is inserted into the first and second side plate portions and the support portion is supported by the first side plate portion. The tip portion of the engaging portion that has been preloaded and bent is inserted into the engaging hole of the second side plate portion. Then, the torsion bar is assembled to the first hinge member so as to exhibit a preset preload, and if the second hinge member is connected to the first hinge member via the hinge pin, the torsion bar The engagement portion is elastically engaged with the check cam of the second hinge member, so that the assembly of the door hinge with the checker is completed, the assembly of the torsion bar is facilitated, and the entire door hinge with the checker is assembled. Work efficiency can be improved.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.
[0008]
1 to 6 show a first embodiment of the present invention. FIG. 1 is a plan view of an automobile provided with a door hinge with a checker. FIG. 2 is an enlarged cross-sectional view of a portion indicated by an arrow 2 in FIG. 3, FIG. 3 is a view taken along the arrow 3 in FIG. 2, FIG. 4 is a view taken along the 4 arrow in FIG. 2, FIG. 5 is a perspective view showing a support structure for the first hinge member of the torsion bar, and FIG. It is a cross-sectional view corresponding to FIG.
[0009]
First, in FIG. 1, a door D for opening and closing the entrance is attached to a vehicle body B of an automobile via a door hinge H1 with a checker according to the present invention.
[0010]
2 to 4, the door hinge with checker H1 includes a first hinge member 15 fixed to the vehicle body B, a second hinge member 16A fixed to the door D, and first and second hinges. A hinge pin 17 with a huge head for connecting the members 15 and 16A so as to be relatively rotatable, and a checker provided between the hinge members 15 and 16A so as to give moderation resistance to the relative rotation of the hinge members 15 and 16A. 18A.
[0011]
The first hinge member 15 integrally includes first and second side plate portions 19a and 19b that are parallel to each other and a connection plate portion 20 that connects the side plate portions 19a and 19b. Fastened to the vehicle body B by two sets of weld nuts 21 and 21 and bolts 22 and 22.
[0012]
The second hinge member 16A is connected to the substantially U-shaped insertion arm portion 23A inserted between the first and second side plate portions 19a and 19b of the first hinge member 15 and to both ends of the insertion arm portion 23A at a right angle. The flange portions 24 a and 24 b are integrally provided, and both the flange portions 24 a and 24 b are fastened to the door D by bolts 25 and 25.
[0013]
A spacer 26 is interposed between the second side plate portion 19b of the first hinge member 15 and the insertion arm portion 23A of the second hinge member 16A, and is external to the second side plate portion 19b of the first hinge member 15. A hinge pin 17 inserted from the inner side is inserted into the bushes 27 and 27 attached to the insertion arm portion 23A and the spacer 26 and inserted into the first side plate portion 19a of the first hinge member 15 from the inner side. The tip of the crimped hinge pin 17 is engaged with the outer surface of the first side plate portion 19a.
[0014]
In this way, the first and second hinge members 15 and 16A are connected to each other via the hinge pin 17 so as to be relatively rotatable, and the door D is supported by the vehicle body B so as to be able to rotate in the opening direction O and the closing direction C. Will be.
[0015]
The checker 18A has a plurality (two in the first embodiment) of convex portions 28 and 29 arranged along the relative rotation direction of the first and second hinge members 15 and 16A, and is attached to the second hinge member 16A. The check cam 30A is provided, and the torsion bar 31 is attached to the first hinge member 15 so as to be able to be elastically engaged with the check cam 30A.
[0016]
The check cam 30A is formed by a pair of rollers being pivotally supported on a detent plate 32A provided on the insertion arm portion 23A of the second hinge member 16A adjacent to the inside of the second side plate portion 19b of the first hinge member 15. There are two detents in which two rollers, which are arranged on an imaginary circle centered on the axis of the hinge pin 17, project part from the outer edge of the detent plate 32 </ b> A to form the convex portions 28 and 29. It is pivotally supported on the plate 32A. Wave washers 39, 40 are interposed between the rollers and the detent plate 32A. These wave washers 39, 40 prevent rattling and wobbling of the rollers, and abnormal noise such as rattling noises. Occurrence can be suppressed.
[0017]
The torsion bar 31 is formed in a substantially U shape at both ends of the shaft portion 31a extending in parallel with the hinge pin 17 and passing through the first and second side plate portions 19a and 19b of the first hinge member 15 and the first side plate. The base end of the support portion 31b whose tip portion is supported by the portion 19a and the base end of the engaging portion 31c formed in a substantially U shape so that the tip portion is elastically engaged with the check cam 30A are integrated. Consecutive to.
[0018]
The first and second side plate portions 19a and 19b of the first hinge member 15 are engaged with the shaft portion 31a and the engagement in a natural state (state indicated by a chain line in FIG. 2) in which no external force is applied to the torsion bar 31. Insertion holes 33 through which the portions 31c are inserted are respectively provided, and the first side plate portion 19a has a distal end portion of the support portion 31b when the shaft portion 31a and the engagement portion 31c are inserted into the insertion holes 33. A support hole 34 through which can be inserted is provided.
[0019]
Further, an engagement hole 35 through which the distal end portion of the engagement portion 31c bent by applying an external force is inserted is provided in the second side plate portion 19b. The engagement hole 35 is formed around the axis of the shaft portion 31a. is intended to allow the engagement portion 31c is bent, it is formed on the axis of the front Kijiku portion 31a in a circular arc shape whose center.
[0020]
A cylindrical elastic cap 36 that works to relieve shock when the convex portions 28 and 29 get over the torsion bar 31 is attached to the tip of the engaging portion 31c. It is elastically engaged with the check cam 30A of the two hinge member 16A.
[0021]
By inserting the engaging portion 31c into the engaging hole 35, the torsion bar 31 exerts a resilient force that presses the shaft portion 31a against the end portion of the inserting hole 33 on the vehicle body B side. At the vehicle body B side end, receiving members 37, 37 made of synthetic resin or oil-impregnated metal are mounted so as to receive the shaft portion 31a.
[0022]
In FIG. 5, the receiving member 37 includes a receiving member main portion 37a that is formed in a semicircular cross section so as to be in contact with the outer surface of the shaft portion 31a that is substantially half a circumference or more, and first and second side plate portions 19a and 19b. Of the four engaging flanges 37b, 37b, and the insertion holes 33 that are connected to both ends in the circumferential direction of the receiving member main portion 37a so as to engage with the outer surface. A pair of contact tongues 37c and 37c that are connected to both ends in the circumferential direction of the receiving member main portion 37a so as to come into contact with each other are integrally provided. Attached to the end of the vehicle body B side.
[0023]
In such a checker 18A, when the door D is in the closed state, the elastic cap 36 mounted on the engaging portion 31c of the torsion bar 31 is elastically engaged with the convex portion 29 as shown in FIG. When the door D is rotated in the opening direction O, an operating force is required to bend the engaging portion 31c of the torsion bar 31 so that the convex portion 29 gets over the elastic cap 36, and the elastic cap 36 is convex. In the state located between 28 and 29, the half-open state of the door D is maintained. Further, when the door D is further rotated in the opening direction O from the half-opened state, as shown in FIG. 6, the operating force that bends the engaging portion 31c of the torsion bar 31 so that the convex portion 28 gets over the elastic cap 36. Is required. Therefore, when the door D is opened, stepwise moderation resistance is given to the turning operation of the door D with the rotation from the closed state to the half-open state and the rotation from the half-open state to the full-open state. Can do. Further, when the operation of closing the door D is performed, the same moderation feeling as that at the time of the opening operation can be obtained, and when the door D is rotated from the half-open state to the fully-closed state, the convex portion 28 has elasticity of the torsion bar 31. When the vehicle passes over the cap 36, a repulsive force that causes the door D to act in the closing direction is generated. Therefore, the door D is unlikely to be in a half-door state.
[0024]
Further, as shown in FIG. 6, when the door D is fully opened, the stopper plate 38 that contacts and engages the detent plate 32 </ b> A to restrict the movement of the door D to the open side is provided with the first hinge member 15. Are provided between the first and second side plate portions 19a, 19b.
[0025]
Next, the operation of the first embodiment will be described. The checker 18A for providing stepwise moderation resistance to the relative rotation of the first and second hinge members 15 and 16A is replaced with the relative rotation of both the hinge members 15 and 16A. A torsion bar 31 having a pair of convex portions 28 and 29 arranged in the direction and configured in cooperation with a check cam 30A provided on the second hinge member 16A extends in parallel with the hinge pin 17 and extends to the first hinge member 15. A base end of a support portion 31b formed in a substantially U shape at both ends of a shaft portion 31a penetrating the first and second side plate portions 19a, 19b and having a distal end portion supported by the first side plate portion 19a; The base end of the engaging portion 31c formed in a substantially U shape is formed integrally and continuously with the check cam 30A so as to elastically engage the elastic cap 36 at the distal end portion. Moreover, the first and second side plate portions 19a and 19b are respectively provided with insertion holes 33 through which the shaft portion 31a and the engagement portion 31c are inserted in a natural state in which the action of external force is avoided. A support hole 34 is provided in the first side plate portion 19a at a position where the distal end portion of the support portion 31b can be inserted when the 31a and the engaging portion 31c are inserted into the both insertion holes 33, and is bent by applying a preload. An engagement hole 35 through which the distal end portion of the engagement portion 31c is inserted is provided in the second side plate portion 19b.
[0026]
Accordingly, when the torsion bar 31 is assembled, the shaft portion 31a and the engaging portion 31c of the torsion bar 31 in a natural state where no external force is applied are not connected to the second hinge member 16A. When the first side plate portion 19a is inserted into the insertion holes 33 in the both side plate portions 19a, 19b from the first side plate portion 19a side, the tip end portion of the support portion 31b on one end side of the torsion bar 31 is inserted into the support hole 34, and Is supported by the first side plate portion 19a. Thus, after inserting the torsion bar 31 from the first side plate portion 19a side to a position where the engaging portion 31c protrudes from the second side plate portion 19b, an external force is applied to the engaging portion 31c to bend the torsion bar 31. By returning to the first side plate portion 19a side, the distal end portion of the engagement portion 31c may be inserted into the engagement hole 35 of the second side plate portion 19b. Then, the torsion bar 31 is assembled to the first hinge member 15 so as to exhibit a preset preload. If the second hinge member 16A is connected to the first hinge member 15 via the hinge pin 17 in this state, the elastic cap 36 attached to the engaging portion 31c of the torsion bar 31 is connected to the check cam 30A of the second hinge member 16A. Thus, the assembly of the checkered door hinge H1 is completed.
[0027]
That is, the assembly of the torsion bar 31 can be facilitated, and the assembly work efficiency of the entire door hinge H1 with checker can be improved.
[0028]
FIG. 7 shows a second embodiment of the present invention, and parts corresponding to the first embodiment are given the same reference numerals.
[0029]
The door hinge H2 with checker connects the first hinge member 15 fixed to the vehicle body B, the second hinge member 16B fixed to the door D, and the first and second hinge members 15 and 16B so as to be relatively rotatable. A hinge pin 17 with an enormous head is provided, and a checker 18B provided between the hinge members 15 and 16B in order to give moderation resistance to the relative rotation of the hinge members 15 and 16B.
[0030]
The checker 18B has a plurality of (three in this second embodiment) convex portions 41, 42, 43 arranged along the relative rotation direction of the first and second hinge members 15, 16B, and has a second hinge member. A check cam 30B provided on 16B, and a torsion bar 31 attached to the first hinge member 15 with an elastic cap 36 elastically engaged with the check cam 30B.
[0031]
The second hinge member 16 </ b> B includes a substantially U-shaped insertion arm portion 23 </ b> B inserted between the first and second side plate portions 19 a and 19 b of the first hinge member 15 and is fastened to the door D. The check cam 30B is formed by pivotally supporting three rollers on a detent plate 32B provided on the insertion arm portion 23B, and the three rollers that arrange the axes on a virtual circle centered on the axis of the hinge pin 17 are provided. By projecting a part from the outer edge of the detent plate 32B, the convex portions 41 to 43 are formed so as to be pivotally supported by the detent plate 32B.
[0032]
According to the second embodiment, a three-step moderation feeling can be obtained while the door D is rotated between the fully closed state and the fully open state.
[0033]
8 to 10 show a third embodiment of the present invention. FIG. 8 is a cross-sectional view of the door hinge with a checker in a closed state, FIG. 9 is a view taken along arrow 9 in FIG. 8, and FIG. FIG.
[0034]
The door hinge H3 with checker connects the first hinge member 15 fixed to the vehicle body B, the second hinge member 16C fixed to the door D, and the first and second hinge members 15 and 16C so as to be relatively rotatable. A hinge pin 17 with an enormous head is provided, and a checker 18C provided between the hinge members 15 and 16C in order to give moderation resistance to the relative rotation of the hinge members 15 and 16C.
[0035]
The checker 18C has a plurality (two in this third embodiment) of convex portions 44 and 45 arranged along the relative rotation direction of the first and second hinge members 15 and 16C, and is attached to the second hinge member 16C. The check cam 30C is provided, and a torsion bar 31 attached to the first hinge member 15 so as to be elastically engaged with the check cam 30C.
[0036]
The second hinge member 16 </ b> C includes a substantially U-shaped insertion arm portion 23 </ b> C inserted between the first and second side plate portions 19 a and 19 b of the first hinge member 15 and is fastened to the door D. The check cam 30C is formed by providing two convex portions 44 and 45 on the outer edge of the detent plate 32C provided on the insertion arm portion 23C. A roller 46 is pivotally supported at the tip of the engaging portion 31c in the torsion bar 31, and this roller 46 is in rolling contact with the outer edge of the detent plate 32C.
[0037]
The third embodiment can achieve the same effects as the above embodiments.
[0038]
FIG. 11 shows a fourth embodiment of the present invention, and parts corresponding to the respective embodiments are given the same reference numerals.
[0039]
The door hinge H4 with checker connects the first hinge member 15 fixed to the vehicle body B, the second hinge member 16D fixed to the door D, and the first and second hinge members 15 and 16D so as to be relatively rotatable. A hinge pin 17 with an enormous head is provided, and a checker 18D provided between the hinge members 15 and 16D so as to give moderation resistance to the relative rotation of the hinge members 15 and 16D.
[0040]
The checker 18D has a plurality of (three in this fourth embodiment) convex portions 47, 48, and 49 arranged along the relative rotation direction of the first and second hinge members 15 and 16D. The check cam 30D is provided in 16D, and the torsion bar 31 is attached to the first hinge member 15 with a roller 46 elastically engaged with the check cam 30D.
[0041]
The second hinge member 16 </ b> D includes a substantially U-shaped insertion arm portion 23 </ b> D inserted between the first and second side plate portions 19 a and 19 b of the first hinge member 15 and is fastened to the door D. The check cam 30D is formed by providing three convex portions 47 to 49 on the outer edge of the detent plate 32D provided in the insertion arm portion 23D.
[0042]
According to the fourth embodiment, a three-step moderation feeling can be obtained while the door D is rotated between the fully closed state and the fully open state.
[0043]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. It is.
[0044]
【The invention's effect】
As described above, according to the present invention, the assembly of the torsion bar can be facilitated, and the assembly work efficiency of the entire door hinge with checker can be improved.
[Brief description of the drawings]
FIG. 1 is a plan view of an automobile provided with a door hinge with a checker according to a first embodiment.
FIG. 2 is an enlarged cross-sectional view of a portion indicated by an arrow 2 in FIG. 1 in a door closed state.
FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2;
4 is a view taken in the direction of arrow 4 in FIG. 2;
FIG. 5 is a perspective view showing a support structure for a first hinge member of a torsion bar.
6 is a cross-sectional view corresponding to FIG. 2 in a door open state.
FIG. 7 is a cross-sectional view corresponding to FIG. 6 of the second embodiment.
FIG. 8 is a cross-sectional view of a door hinge with a checker in a third embodiment in a door closed state.
9 is a view taken along arrow 9 in FIG.
10 is a view taken in the direction of arrow 10 in FIG.
FIG. 11 is a cross-sectional view corresponding to FIG. 6 of the fourth embodiment.
[Explanation of symbols]
15 ... 1st hinge member 16A-16D ... 2nd hinge member 17 ... Hinge pin 18A-18D ... Checker 19a ... 1st side board part 19b ... 2nd side board part 23A-23D. .... Insert arm portions 28, 29, 40 to 42, 44, 45, 47 to 49 ... convex portions 30A to 30D ... check cam 31 ... torsion bar 31a ... shaft portion 31b ... support Part 31c ... engaging part 35 ... engaging hole B ... vehicle body D ... door H1-H4 ... door hinge with checker

Claims (1)

A first hinge member (15) having first and second side plate portions (19a, 19b) parallel to each other and fixed to one of the vehicle body (B) and the door (D), and the first and second A second hinge member (16A) having an insertion arm portion (23A, 23B, 23C, 23D) inserted between the side plate portions (19a, 19b) and fixed to the other of the vehicle body (B) and the door (D). , 16B, 16C, 16D), a hinge pin (17) for connecting the insertion arm portion (23A-23D) and the first and second side plate portions (19a, 19b) in a relatively rotatable manner, and the first and first In the door hinge with a checker comprising a checker (18A, 18B, 18C, 18D) that imparts stepwise resistance to relative rotation of the two hinge members (15, 16A-16D), the checkers (18A-18D) Has a plurality of convex portions (28, 29; 40, 41, 42; 44, 45; 47, 48, 49) arranged along the relative rotational direction of the hinge members (15, 16A to 16D). Check cams (30A, 30B, 30C, 30D) provided on the second hinge members (16A to 16D), and the first hinge member (15) enabling elastic engagement with the check cams (30A to 30D). The torsion bar (31) is attached to the shaft, and the torsion bar (31) extends parallel to the hinge pin (17) and passes through the first and second side plate portions (19a, 19b). 31a) is formed in a substantially U shape at both ends, and a distal end portion is supported by the first side plate portion (19a) at the base end of the support portion (31b) and the check cams (30A to 30D) at the distal end portion. The bullet engaged In this way, the base end of the engaging portion (31c) formed in a substantially U shape is integrally connected, and the shaft portion (31a) is connected to the first and second side plate portions (19a, 19b). ) And the distal end portion of the engagement portion (31c) bent by the action of an external force in a state where the support portion (31b) is supported by the first side plate portion (19a) is the second side plate portion. The engagement hole (35) provided in (19b) is inserted into and engaged with the engagement hole (35), and the engagement portion (31c) bends around the axis of the shaft portion (31a). The door hinge with a checker is formed in an arc shape centering on the axis of the shaft portion (31a) .

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