JP2004025928A - Door check of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide arts to enable improvement of the operation feeling of a door after relieving an impact during operation of a door check, in the door check of a vehicle to hold the door at a given opening. <P>SOLUTION: The base end of a stopper stay 11 is rotatably supported at a support bracket 12 through a first spindle 13. Further, the support bracket 12 is rotatably supported at a mounting bracket 14 fixed at a car body through a second spindle 15. A cushion rubber 18 is situated between a longitudinal plate part 12b of the support bracket 12 and a longitudinal plate 14b of the mounting bracket 14. When, during rotation in an opening direction of a back door 3, a tip 11c of a stopper stay 11 is engaged with an engaging groove 19a of a stopper rail 19 fixed on the door side, the cushion rubber 18 is elastically deformed through rotation operation of a support bracket 12 accompanying with the engagement, and an impact is relieved. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door stopper for a vehicle that is applied to a box-type vehicle such as a refrigerating vehicle or an insulated vehicle having a double door or a single door, and holds the back door at a predetermined opening.
[0002]
[Prior art]
A door stopper for this type of vehicle is described, for example, in Japanese Utility Model Laid-Open No. 5-515. The door stopper described in the above publication includes an operating rod as a first engagement member supported on the vehicle body side, and a guide case as a second engagement member fixed on the back door side. The base end of the operating rod is rotatably attached to a support member fixed to the vehicle body around a support shaft parallel to the rotation axis of the back door. The distal end of the operating rod is formed in a T-shape, and a guide housing is formed. It is located between the guide rail provided inside and the guide plate. When the back door is pivoted in the opening direction, the T-shaped portion at the tip of the operating rod moves through the space between the guide rail and the guide plate, and engages with the engaging portion formed on the guide plate. The back door is held at a predetermined opening by engaging and abutting against a stopper provided in the guide housing.
[0003]
When the back door is opened, the T-shaped portion of the operating rod vigorously engages with the engaging portion of the guide plate and abuts against the stopper, so that each component of the door stopper, its supporting portion, and the door hinge are impacted. This may cause each member to bend, peel, crack or the like. In view of such a problem, in the door stopper described in the above publication, when the T-shaped portion of the operating rod passes between the guide rail and the guide plate formed of the elastic material, the T-shaped portion stops the guide plate. It is configured to receive resistance by passing while being elastically deformed, thereby reducing the impact at the time of engagement.
[0004]
[Problems to be solved by the invention]
However, since the above-described door stopper has a configuration in which the T-shaped portion of the operating rod is engaged with the engaging portion of the guide plate and before the abutment against the stopper, the door stopper has a resistance to the movement of the operating rod. At the time of the opening operation, the movement of the operating rod rapidly changes (becomes heavier) in the middle of the movement process until the operating rod engages with the engaging portion of the guide plate. As a result, there is a problem that the operation feeling of the back door is poor.
[0005]
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a door stopper for a vehicle that holds a door at a predetermined opening degree by reducing the impact at the time of operating the door stopper. Therefore, it is an object of the present invention to provide a technology capable of improving the operation feeling of the door.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a vehicle door stopper according to the present invention is configured as described in claims 1 to 4. The invention described in each of these claims is provided with a first engagement member provided on one of a vehicle body and a door rotatably provided on the vehicle body, the first engagement member moving along a predetermined locus according to opening and closing of the door, A second engagement member provided on the other side of the vehicle body, the second engagement member engaging with the first engagement member when the first engagement member moves to a predetermined position with the rotation of the door in the opening direction; In a door stopper of a vehicle that holds a door at a predetermined opening based on engagement between a first engagement member and a second engagement member, an impact upon operation of the door stopper is reduced and a feeling of operation of the door is reduced. This is a technology that can be improved.
[0007]
In the vehicle door stopper according to the first aspect, after the first engagement member is engaged with the second engagement member, the movement of the first engagement member accompanying the further rotation of the door in the opening direction is permitted. And a biasing means for applying a return force to the first engagement member to a predetermined position.
According to the first aspect of the present invention, after the engagement between the first engagement member and the second engagement member, the return force of the urging means acting on the movement of the first engagement member allows the door to be moved. The rotational force in the opening direction can be attenuated. Thereby, the impact at the time of engagement functioning as a door stopper can be reduced. In addition, the door can be rotated with a constant operating force from when the door starts rotating in the opening direction to when the first engagement member and the second engagement member are engaged. For this reason, the operation feeling of the door is improved as compared with the related art.
[0008]
According to a second aspect of the present invention, there is provided the vehicle door stopper according to the first aspect, further comprising a support member that rotatably supports the first engagement member, wherein the support member includes a vehicle body or a door. On the other hand, it is attached so as to be rotatable around a support shaft parallel to the rotation axis of the first engagement member. The urging means is provided between the support member and the vehicle body or between the support member and the door. Usually, the urging means holds the support member at the initial position, and engages the first engagement member with the second engagement member. When a load is applied to the support member due to the further rotation of the door in the opening direction after the engagement with the member, the support member is allowed to rotate while applying a return force to the initial position while allowing the rotation of the support member. It is characterized by:
[0009]
According to the second aspect of the present invention, the support member rotatably supporting the first engagement member is rotatably supported on one of the vehicle body and the door, and a return force is applied to the support member. As compared with a configuration in which a return force is directly applied to the movement of the joining member, the damping effect of the door rotational force by the return force can be rationally secured.
[0010]
According to a third aspect of the present invention, in the vehicle door stopper according to the second aspect, the support member and the vehicle body or the support member and the door are formed with opposing surfaces that oppose each other. The means is an elastic member interposed between the facing surfaces. Therefore, according to the invention of claim 3, it is possible to provide a door stopper having a compact shock absorbing structure.
[0011]
In the vehicle door stopper according to the fourth aspect, in the vehicle door stopper according to the second or third aspect, the support member is attached to the vehicle body or the door via an attachment member on which the support member is rotatably supported. And the biasing means is provided between the support member and the mounting member. Therefore, according to the fourth aspect of the invention, after the urging means has been previously assembled between the support member and the mounting member, the mounting member can be mounted on the vehicle body or the door, so that the mounting property is good.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a rear perspective view of a box-shaped vehicle provided with a back door according to the present embodiment, and FIGS. 1 and 2 are plan views each showing a door stopper for holding the back door at a predetermined opening. FIG. 2 shows the state when the door is closed, and FIG. 2 shows the state when the door is opened. FIG. 3 is an exploded perspective view illustrating a stopper stay, which is a constituent member of the door stopper, and a support structure thereof, and FIG. 4 is a cross-sectional view taken along line AA of FIG. FIG. 5 is an explanatory diagram for explaining an impact reducing action at the time of operating the door stopper.
As shown in FIG. 6, a double door-type back door 3 is provided at the rear of the vehicle body 1 to open and close an opening for loading or unloading luggage into the luggage compartment. As shown in FIGS. 1 and 2, the back door 3 is attached to the vehicle body 1 via a door hinge 4 so as to be horizontally rotatable. Between the vehicle body 1 and the back door 3, when the back door 3 is rotated in the opening direction about the rotation axis 4a of the door hinge 4, the back door 3 is held at a predetermined opening (approximately 90 degrees). A door stopper 10 is provided.
[0013]
Next, the door stopper 10 according to the present embodiment will be described with reference to FIGS. The door stopper 10 mainly includes a stopper stay 11 attached to the vehicle body 1 side and a stopper rail 19 fixed to the back door 3 side. The stopper stay 11 has a structure in which a round bar is folded back into a U-shape and the terminal portion is fixed to a U-shaped base member 11a (see FIG. 3), and the base member 11a is slightly larger than the base member 11a. The first bracket 13 is rotatably supported by a first support shaft 13 while being arranged in a support bracket 12 formed in a U-shape. The first support shaft 13 is set in parallel with the rotation shaft 4a of the door hinge 4, penetrates the collar 11b provided on the base member 11a and the upper and lower flat plate portions 12a of the support bracket 12, and also supports the support bracket 12 It is locked in.
[0014]
The support bracket 12 is rotatably supported by a second support shaft 15 in a state where the support bracket 12 is disposed in a mounting bracket 14 formed in a U-shape slightly larger than the support bracket 12. The second support shaft 15 is set to be parallel to the first support shaft 13 and thus to the rotation shaft 4a of the door hinge 4, and the upper and lower plate portions 12a, 12a, 14a, and is prevented from falling off by the mounting bracket 14. A bush 12 d is interposed between the flat plate portion 12 a of the support bracket 12 and the second support shaft 15, and the support bracket 12 is rotatable with respect to the second support shaft 15. The mounting bracket 14 has a vertical plate portion 14 b fixed to the inner wall surface 1 a of the vehicle body 1 by an appropriate number of mounting bolts 17.
Further, torsion springs 16 are arranged on the upper and lower outer circumferences of the collar 11b of the stopper stay 11, respectively. One end of each torsion spring 16 is locked to the support bracket 12 side and the other end is locked to the stopper stay 11 side. I have. As a result, a rotational force is applied to the stopper stay 11 in the same direction as the opening direction of the back door 3, and when the back door 3 is at the closed position, as shown in FIG. The front end (U-shaped folded portion) 11c is pressed against the inner wall surface 3a of the back door 3.
[0015]
When the back door 3 is rotated in the opening direction, the stopper stay 11 attached as described above rotates about the first support shaft 13 in accordance with the rotation, and the tip 11c is moved to the inner wall surface 3a of the back door 3. It moves while maintaining the state of contact with. A stopper rail 19 is fixed to the inner wall surface 3a of the back door 3, and the distal end 11c of the stopper stay 11 that has moved as described above engages with an engagement groove 19a formed in the stopper rail 19, and Based on the engagement, the back door 3 is held at a predetermined opening (approximately 90 degrees). Further, the stopper rail 19 has a guide surface 19b for guiding the distal end 11c of the stopper stay 11 to the engagement groove 19a. The stopper stay 11 corresponds to the first engaging member according to the present invention, and the stopper rail 19 corresponds to the second engaging member according to the present invention. The support bracket 12 corresponds to the support member according to the present invention, and the mounting bracket 14 corresponds to the mount member according to the present invention.
[0016]
The vertical plate portion 12b of the support bracket 12 and the vertical plate portion 14b of the mounting bracket 14 face each other at a predetermined interval, and two upper and lower cushions as elastic members are provided between the vertical plate portions 12b and 14b. Rubber 18 is interposed. The cushion rubber 18 is formed in a rectangular parallelepiped shape, and is attached to one of the brackets, in this embodiment, the vertical plate portion 14 b of the mounting bracket 14 with, for example, an adhesive. The support 12c is held in contact with the portion 12b. Thereby, the cushion rubber 18 normally holds the support bracket 12 at the initial position where the vertical plate portions 12b and 14b are substantially parallel to the mounting bracket 14 in a normal state (free state where no load is applied). When a load (rotational force) is applied to the support bracket 12, the cushion rubber 18 is elastically deformed by being pressed by the vertical plate portions 12 b and 14 b, and is returned to the initial position with respect to the support bracket 12. And a biasing means for applying the return force in the present invention. Further, the above-mentioned vertical plate portions 12b and 14b correspond to the facing surfaces referred to in the present invention.
[0017]
The door stopper 10 according to the present embodiment is configured as described above. Therefore, when the back door 3 is rotated in the opening direction, the stopper stay 11 to which the rotational force is applied by the torsion spring 16 moves while its tip 11c slides on the inner wall surface 3a of the back door 3, and As shown in FIG. 2, the guide rail 19b of the stopper rail 19 guides and engages with the engagement groove 19a. At this time, the stopper stay 11 has a positional relationship close to being parallel to the inner wall surface 1a of the vehicle body 1 or the inner wall surface 3a of the back door 3.
[0018]
As shown in FIG. 5, a load acts on the stopper stay 11 in the pulling direction in accordance with the engagement. This load is transmitted to the support bracket 12 via the first support shaft 13, and the support bracket 12 is rotated about the second support shaft 15. As a result, the cushion rubber 18 is pressed by the vertical plate portion 12b of the support bracket 12 and is elastically deformed. That is, the cushion rubber 18 absorbs or attenuates the rotational force of the back door 3 by being elastically deformed by the load when the stopper stay 11 is engaged with the stopper rail 19. Thereby, the impact at the time of engagement, that is, at the time of operating the door stopper is reduced, and the constituent members of the door stopper 10, its supporting portion, or the door hinge can be protected.
As described above, according to the door stopper 10 according to the present embodiment, after the stopper stay 11 is engaged with the stopper rail 19, the rotation of the support bracket 12 that supports the stopper stay 11 is allowed, and then the support bracket 12 is rotated. By applying the restoring force of the cushion rubber 18 elastically deformed by the rotation as a force in the direction of returning the support bracket 12 to the initial position, it is possible to reduce the impact at the time of operating the door stopper.
[0019]
When the front end 11c of the stopper stay 11 is engaged with the engagement groove 19a of the stopper rail 19, the rotation of the back door 3 in the opening direction and the closing direction is regulated, whereby the back door 3 has a predetermined opening degree ( (Approximately 90 degrees).
When the back door 3 is closed, in the state shown in FIG. 2, a release lever (not shown) is operated to rotate the stopper stay 11 in the disengagement direction against the torsion spring 16. Since the tip 11c of the stay 11 is hooked on the claw 19c at the entrance of the engagement groove 19a, the operation of rotating the back door 3 in the closing direction so as to release the hook is performed to move the tip 11c from the engagement groove 19a. Escape temporarily. Thereby, the back door 3 can be rotated in the closing direction.
Further, in the disengaged state in which the tip 11c of the stopper stay 11 is disengaged from the engagement groove 19a of the stopper rail 19, the back door 3 can be further rotated in the opening direction to be opened to a predetermined opening degree or more.
[0020]
Thus, in the present embodiment, after the tip 11c of the stopper stay 11 is engaged with the engagement groove 19a of the stopper rail 19, the impact is relieved by utilizing the elastic deformation of the cushion rubber 18. Therefore, the back door 3 can be rotated in the opening direction with a constant operating force from the time when the back door 3 starts rotating in the opening direction to the time when the stopper stay 11 engages with the stopper rail 19. it can. For this reason, the operation feeling of the back door 3 can be improved as compared with the conventional door stopper configured to reduce the impact by giving resistance to the operation of the door stopper before the engagement.
In this case, in the present embodiment, the stopper stay 11 is rotatably supported on the support bracket 12 via the first support shaft 13, and the support bracket 12 is further mounted on the mounting bracket 14 fixed to the vehicle body 1. It is configured to be rotatably supported by two support shafts 15, and a cushion rubber 18 is interposed between the vertical plate portion 12b of the support bracket 12 and the vertical plate portion 14b of the mounting bracket 14. For this reason, for example, as compared with a configuration in which the cushion rubber 18 is elastically deformed by directly using the movement amount of the stopper stay 11 after the stopper stay 11 is engaged with the stopper rail 19, the elastic deformation of the cushion rubber 18 is reduced. This is advantageous in that it is easy to secure the necessary movement, and it is easy to increase the pressing area of the cushion rubber 18.
[0021]
The cushion rubber 18 has a structure in which the cushion rubber 18 is interposed between the vertical plate portions 12b and 14b of the support bracket 12 and the mounting bracket 14 that face each other. The door stopper 10 having a compact structure can be provided. Further, according to the present embodiment, the support bracket 12 of the stopper stay 11 can be attached to the mounting bracket 14 in advance, and then the mounting bracket 14 can be mounted to the inner wall surface 1a of the vehicle body 1. Therefore, the mountability is good.
[0022]
Note that the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention.
For example, in the present embodiment, the cushion rubber 18 is used as the urging means for reducing the impact. However, the cushion rubber 18 may be replaced with a leaf spring, a coil spring, or the like, or may use a fluid such as an air spring. May be changed. In short, the urging means in the present invention is only required to be able to attenuate the rotational force held by the door after the stopper stay 11 is engaged with the stopper rail 19.
Further, in the present embodiment, the cushion rubber 18 is arranged between the vertical plate portion 12b of the support bracket 12 and the vertical plate portion 14b of the mounting bracket 14, but the arrangement portion of the cushion rubber 18 is limited to this. Not something. For example, the stopper stay 11 may be provided between the engaging surface of the stopper groove 19a and the front end 11c of the stopper stay 11, and may be assembled to the stopper stay 11 itself. (Longitudinal direction), the cushion may be interposed between the divided surfaces, and the impact may be reduced by utilizing the elastic deformation in the extending direction. Further, a configuration may be adopted in which a cylindrical cushion rubber is interposed between the collar 11b and the first support shaft 13, and the impact is reduced by elastic deformation of the cushion rubber in the radial direction.
[0023]
Further, the method of engagement between the stopper stay 11 and the stopper rail 19 is not limited to the type shown in the figure, but may be changed to a type in which the tip 11c of the stopper stay 11 is always linked to the stopper rail 19, such as a stopper. A configuration in which a slit-shaped guide groove is formed in the rail along the longitudinal direction and the engagement groove described in the present embodiment is continuously set at one end of the guide groove may be used.
Alternatively, the stopper stay 11 may be attached to the back door 3 side, and the stopper rail 19 may be fixed to the vehicle body 1 side. Further, the case of the back door 3 has been described, but the present invention is not limited to this.
[0024]
【The invention's effect】
As described above in detail, according to the present invention, in a door stopper of a vehicle that holds a door at a predetermined opening degree, it is possible to improve the operation feeling of the door while reducing the impact at the time of operating the door stopper. Technology can be provided.
[Brief description of the drawings]
FIG. 1 is a plan view showing a door stopper of a vehicle when a door is closed.
FIG. 2 is a plan view showing a door stopper of the vehicle when the door is opened.
FIG. 3 is an exploded perspective view illustrating a stay which is a constituent member of a door stopper and a support structure thereof.
FIG. 4 is a sectional view taken along line AA of FIG. 1;
FIG. 5 is an explanatory diagram for explaining an impact mitigation effect when a door stopper is operated.
FIG. 6 is a rear perspective view of a box-shaped vehicle provided with a back door.
[Explanation of symbols]
1 ... body 3 ... back door (door)
4 Door hinge 4a Rotary shaft 10 Door stopper 11 Stopper stay (first engagement member)
11c: Tip 12: Support bracket (support member)
12b: Vertical plate (opposite surface)
13: first support shaft 14: mounting bracket (mounting member)
14b: vertical plate (opposing surface)
15: second support shaft 18: cushion rubber (biasing means)
19: Stopper rail (second engagement member)
19a ... engagement groove

Claims (4)

A first engagement member provided on one of a vehicle body and a door rotatably provided on the vehicle body, the first engagement member moving on a predetermined trajectory according to opening and closing of the door; and a first engagement member provided on the other of the door or the vehicle body, A second engaging member that engages with the first engaging member when the first engaging member moves to a predetermined position with the rotation of the door in the opening direction; A door stopper for a vehicle that holds the door at a predetermined opening based on engagement between a member and the second engagement member,
After the first engagement member engages with the second engagement member, the first engagement member is allowed to move while the door is further rotated in the opening direction while allowing the first engagement member to move. A door stopper for a vehicle, further comprising an urging means for applying a return force to the predetermined position. The vehicle door stopper according to claim 1, further comprising a support member rotatably supporting the first engagement member, wherein the support member is connected to one of the vehicle body and the door by the first engagement member. The member is rotatably mounted on a support shaft parallel to the rotation axis of the member, and the urging means is provided between the support member and the vehicle body or between the support member and the door. Usually, the support member is held at the initial position, and the support member is rotated by the door in a further opening direction after the first engagement member and the second engagement member are engaged with each other. A door stopper for a vehicle, wherein when a load is applied, a return force to the initial position is applied to the support member while allowing rotation of the support member. 3. The door stopper of the vehicle according to claim 2, wherein the support member and the vehicle body, or the support member and the door are formed with opposing surfaces facing each other, and the urging unit is provided with the opposing surface. A door stopper for a vehicle, which is an elastic member interposed therebetween. 4. The vehicle door stopper according to claim 2, wherein the support member is attached to the vehicle body or the door via an attachment member on which the support member is rotatably supported, and the urging means is provided. A door stopper for a vehicle, which is provided between the support member and the mounting member.

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