JP4062984B2 - Vehicle door stopper - Google Patents

Description

[0001]
BACKGROUND 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 freezer car or a cold car equipped with 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 housing as a second engagement member fixed on the back door side. The base end of the operating rod is attached to a support member fixed to the vehicle body so as to be rotatable about a support shaft parallel to the rotation axis of the back door, and the distal end of the operating rod is formed in a T-shape and has a guide housing. It is located between a guide rail provided inside and a 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 the engagement portion formed on the guide plate moves. The back door is held at a predetermined opening by engaging and abutting against a stopper provided in the guide housing.
[0003]
When opening the back door, if the T-shaped part of the operating rod engages the engaging part of the guide plate vigorously and comes into contact with the stopper, it impacts each component of the door stopper, its supporting part, and the door hinge. May occur, causing bending of each member, peeling, cracking, and the like. In view of such problems, 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 an elastic material, the T-shaped portion serves as a 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, the door stopper described above is configured to provide resistance to movement of the operating rod before the T-shaped portion of the operating rod engages with the engaging portion of the guide plate and contacts the stopper. During the opening operation, the movement of the operating rod changes abruptly (heavy) during 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 bad.
[0005]
The present invention has been made in view of the above-described conventional problems. The object of the present invention is to reduce the impact when the door stopper is operated in a vehicle door stopper that holds the door at a predetermined opening. Then, it is providing the technique which can improve the operation feeling of a 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 3 . The invention described in each of the claims includes a first engagement member that is provided on one of a vehicle body or a door that is rotatably provided on the vehicle body, and that moves along a predetermined locus according to the opening and closing of the door, A second engagement member that is provided on the other side of the vehicle body and engages with the first engagement member when the first engagement member moves to a predetermined position as the door rotates in the opening direction; In the vehicle door stopper that holds the door at a predetermined opening based on the engagement between the first engagement member and the second engagement member, after the impact when the door stopper is actuated, the operation feeling of the door is reduced. This is a technology that can be improved.
[0007]
In the vehicle door stopper according to claim 1, after the first engagement member is engaged with the second engagement member, the first engagement member is allowed to move along with the further rotation of the door in the opening direction. In addition, the first engagement member is provided with a biasing means for applying a return force to a predetermined position.
According to the invention of claim 1, 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 causes the door to The rotational force in the opening direction can be attenuated. Thereby, the impact at the time of engagement which functions as a door stopper can be relieved. In addition, the door can be rotated with a constant operating force from when the door starts to rotate in the opening direction until the first engagement member and the second engagement member are engaged. For this reason, the operation feeling of a door improves compared with the past.
[0008]
In addition, the vehicle door stopper according to claim 1 includes a support member that rotatably supports the first engagement member, and the support member rotates the first engagement member on one of the vehicle body and the door. It is attached so as to be rotatable around a support shaft parallel to the shaft. The biasing 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 first engagement member and the second engagement are held. When a load is applied to the support member due to further rotation of the door in the opening direction after the engagement with the member, a return force to the initial position is applied to the support member while allowing the support member to rotate. It is characterized by that.
[0009]
According to the first aspect of the present invention, the support member that rotatably supports the first engagement member is rotatably supported on one of the vehicle body and the door, and a restoring force is applied to the support member. Compared with the configuration in which the return force is directly applied to the movement of the combined member, the door rotational force can be effectively reduced by the return force.
[0010]
In the vehicle door stopper according to claim 2 , in the vehicle door stopper according to claim 1 , the support member and the vehicle body, or the support member and the door are formed with opposing surfaces to be opposed to each other. The means is an elastic member interposed between the opposing surfaces. Therefore, according to invention of Claim 2, the door stopper which has a compact impact mitigation structure can be provided.
[0011]
In the vehicle door stopper according to claim 3 , in the vehicle door stopper according to claim 1 or 2 , the support member is attached to the vehicle body or the door via an attachment member on which the support member is rotatably supported. The biasing means is provided between the support member and the mounting member. Therefore, according to the invention of claim 3 , after the urging means is assembled in advance between the support member and the mounting member, the mounting member can be mounted on the vehicle body or the door.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. FIG. 6 is a rear perspective view of a box-type vehicle provided with a back door according to the present embodiment, and FIGS. 1 and 2 are plan views showing door stoppers for holding the back door at a predetermined opening degree, respectively. FIG. 2 shows when the door is closed, and FIG. FIG. 3 is an exploded perspective view for explaining 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 view for explaining the impact mitigating action when the door stopper is operated.
As shown in FIG. 6, a double door 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 around the rotation shaft 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 is mainly composed of 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 in a U-shape and its end 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 support shaft 13 is rotatably supported by the first support shaft 13 in a state where the support bracket 12 is formed in a U-shape. The first support shaft 13 is set parallel to the rotation shaft 4 a of the door hinge 4, penetrates the collar 11 b provided on the base member 11 a and the upper and lower flat plate portions 12 a of the support bracket 12, and supports the support bracket 12. It is prevented from coming off.
[0014]
The support bracket 12 is rotatably supported by the second support shaft 15 in a state where the support bracket 12 is disposed in a mounting bracket 14 formed in a U shape that is 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 parallel to the rotation shaft 4 a of the door hinge 4, and the upper and lower flat plate portions 12 a of the support bracket 12 and the mounting bracket 14 are arranged. While passing through 14a, the mounting bracket 14 is prevented from coming off. A bush 12 d is interposed between the flat plate portion 12 a of the support bracket 12 and the second support shaft 15, so that the support bracket 12 can rotate with respect to the second support shaft 15. In the mounting bracket 14, the vertical plate portion 14 b is fixed to the inner wall surface 1 a of the vehicle body 1 by an appropriate number of mounting bolts 17.
In addition, a torsion spring 16 is disposed on each of the upper and lower outer periphery of the collar 11b of the stopper stay 11, and one end of each torsion spring 16 is engaged with the support bracket 12 and the other end is engaged with the stopper stay 11 side. Yes. Thereby, the stopper stay 11 is given a rotational force in the same direction as the opening direction of the back door 3, and as shown in FIG. 1, when the back door 3 is in the closed position, The tip (U-shaped folded portion) 11 c is pressed against the inner wall surface 3 a 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 along with the rotation, and the tip 11c is the inner wall surface 3a of the back door 3. It moves while maintaining the state in contact with. A stopper rail 19 is fixed to the inner wall surface 3 a of the back door 3, and the tip 11 c of the stopper stay 11 moved as described above engages with an engagement groove 19 a formed in the stopper rail 19. Based on the engagement, the back door 3 is held at a predetermined opening (approximately 90 degrees). The stopper rail 19 has a guide surface 19b that guides the tip 11c of the stopper stay 11 to the engaging groove 19a. The stopper stay 11 corresponds to the first engagement member referred to in the present invention, and the stopper rail 19 corresponds to the second engagement member referred to in the present invention. The support bracket 12 corresponds to the support member in the present invention, and the mounting bracket 14 corresponds to the attachment member in 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 are opposed to 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 14b of the mounting bracket 14 with, for example, an adhesive, and the vertical plate of the support bracket 12 The part 12b is held by the support 12c in a contact state. Thus, 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 free state where no load is applied. When the 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 returns the support bracket 12 to the initial position. A return force is applied to the head, and corresponds to the biasing means for applying the return force in the present invention. Moreover, said vertical board part 12b, 14b respond | corresponds to the opposing surface said by this 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 the tip 11c slides on the inner wall surface 3a of the back door 3, and As shown in FIG. 2, it is guided by the guide surface 19b of the stopper rail 19 and engages with the engagement groove 19a. At this time, the stopper stay 11 has a positional relationship that is nearly parallel to the inner wall surface 1 a of the vehicle body 1 or the inner wall surface 3 a of the back door 3.
[0018]
As shown in FIG. 5, a load acts on the stopper stay 11 in the pulling direction with the above 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. Thereby, the cushion rubber 18 is pressurized and elastically deformed by the vertical plate portion 12 b of the support bracket 12. That is, the cushion rubber 18 absorbs or attenuates the rotational force of the back door 3 by being elastically deformed by a load when the stopper stay 11 is engaged with the stopper rail 19. Thereby, the impact at the time of engagement, that is, when the door stopper is operated, is alleviated, and the constituent members of the door stopper 10, the support portions thereof, or the door hinges can be protected.
Thus, according to the door stopper 10 according to the present embodiment, after the stopper stay 11 is engaged with the stopper rail 19, the support bracket 12 that supports the stopper stay 11 is allowed to rotate, and then the support bracket 12 By applying the restoring force of the cushion rubber 18 that is elastically deformed by the rotation of the support rubber 12 as a force in a direction to return the support bracket 12 to the initial position, it is possible to mitigate the impact when the door stopper is operated.
[0019]
When the tip 11c of the stopper stay 11 is engaged with the engagement groove 19a of the stopper rail 19, the back door 3 is restricted from rotating in the opening direction and the closing direction. Held at approximately 90 degrees).
When closing the back door 3, in the state shown in FIG. 2, the release lever (not shown) is operated to rotate the stopper stay 11 against the torsion spring 16 in the disengagement direction. Since the tip 11c of the stay 11 is caught by the claw 19c at the entrance of the engagement groove 19a, the tip 11c is moved away from the engagement groove 19a by performing an operation of rotating the back door 3 in the closing direction so as to release this catch. 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 engaging groove 19a of the stopper rail 19, the back door 3 can be further rotated in the opening direction to open more than a predetermined opening.
[0020]
As described above, 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 using 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 when the back door 3 starts to rotate in the opening direction until 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 relieve the impact by applying 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 by the support bracket 12 via the first support shaft 13, and the support bracket 12 is attached to the mounting bracket 14 fixed to the vehicle body 1. The support shaft 15 is rotatably supported by the two support shafts 15, and a cushion rubber 18 is interposed between the vertical plate portion 12 b of the support bracket 12 and the vertical plate portion 14 b of the mounting bracket 14. For this reason, for example, the cushion rubber 18 is more elastically deformed than the configuration in which the cushion rubber 18 is elastically deformed by directly using the amount of movement of the stopper stay 11 after the stopper stay 11 is engaged with the stopper rail 19. Therefore, there are advantages such that it is easy to secure the movement for the purpose, and it is easy to increase the pressure area of the cushion rubber 18.
[0021]
The cushion rubber 18 has a configuration 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 facing each other. The door stopper 10 having a compact structure can be provided. Further, according to the present embodiment, the mounting bracket 14 can be attached to the inner wall surface 1 a of the vehicle body 1 after the support bracket 12 of the stopper stay 11 is assembled to the mounting bracket 14 in advance. For this reason, the mountability is good.
[0022]
In addition, this invention is not limited to embodiment mentioned above, It can change suitably in the range which does not deviate from the summary.
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 using a fluid such as an air spring. It may be changed. In short, the urging means in the present invention may be any means that can 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 disposed 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. It is not a thing. For example, it may be configured to be interposed between the engagement surfaces of the tip 11c of the stopper stay 11 and the engagement groove 19a of the stopper rail 19, or it is assembled to the stopper stay 11 itself, that is, the stopper stay 11 is arranged in the axial direction. It is also possible to divide into two (longitudinal direction), interpose a cushion rubber between the divided surfaces, and reduce the impact using elastic deformation in the extension 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 in the radial direction of the cushion rubber.
[0023]
In addition, the engagement method of the stopper stay 11 and the stopper rail 19 is not limited to the illustrated type, but instead, the tip 11c of the stopper stay 11 is always linked to the stopper rail 19, for example, a stopper. A slit-like guide groove may be formed in the rail along the longitudinal direction, and the engagement groove described in this embodiment may be continuously set at one end of the guide groove.
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. Moreover, although demonstrated in the case of the back door 3, it is not limited to this.
[0024]
【The invention's effect】
As described above in detail, according to the present invention, in a vehicle door stopper that holds the door at a predetermined opening, it is possible to improve the operation feeling of the door after alleviating the impact when the door stopper is operated. Technology can be provided.
[Brief description of the drawings]
FIG. 1 is a plan view showing a door stopper of a vehicle, and shows when the door is closed.
FIG. 2 is a plan view showing the door stopper of the vehicle, showing the door when it is opened.
FIG. 3 is an exploded perspective view illustrating a stay that is a constituent member of a door stopper and a support structure thereof.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is an explanatory view for explaining an impact mitigating action when the door stopper is operated.
FIG. 6 is a rear perspective view of a box-type vehicle including a back door.
[Explanation of symbols]
1 ... Car body 3 ... Back door (door)
4 ... Door hinge 4a ... Rotating shaft 10 ... Door stopper 11 ... Stopper stay (first engaging member)
11c ... tip 12 ... support bracket (support member)
12b ... Vertical plate (opposite surface)
13 ... 1st spindle 14 ... Mounting bracket (mounting member)
14b ... Vertical plate (opposite surface)
15 ... 2nd spindle 18 ... Cushion rubber (biasing means)
19: Stopper rail (second engaging member)
19a ... engaging groove

Claims (3)

A first engagement member provided on one of the vehicle body or one of the doors rotatably provided on the vehicle body, and moved on a predetermined locus in accordance with opening and closing of the door; and provided on the other of the door or the vehicle body, A second engagement member that engages with the first engagement member when the first engagement member moves to a predetermined position as the door rotates 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 is engaged with the second engagement member, the first engagement member is allowed to move while the door is further rotated in the opening direction. A biasing means for applying a return force to the predetermined position is provided, and a support member for rotatably supporting the first engagement member is provided, and the support member is provided on one of the vehicle body and the door. The urging means is attached between the support member and the vehicle body or between the support member and the door, and is attached to be rotatable about a support shaft parallel to the rotation axis of the first engagement member. The support member is normally held at the initial position, and the door is further rotated in the opening direction after the first engagement member and the second engagement member are engaged with each other. When the load is applied to the support member, the support member is allowed to rotate. Vehicle door stop according to claim der Rukoto which imparts returning force to the initial position to the support member while. 2. The vehicle door stopper according to claim 1, wherein opposing surfaces are formed on the support member and the vehicle body, or the support member and the door, and the biasing means is the opposing surface. A door stopper for a vehicle, which is an elastic member interposed therebetween . The vehicle door stopper according to claim 1 or 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. door stopper vehicle, characterized that you have provided between the mounting member and the support member.

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