JP2016112970A - Holding device for vehicle back door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a holding device for a vehicle back door capable of holding a horizontally openable back door at an optional opening position, with a compact structure.SOLUTION: A holding device for a vehicle back door is equipped with a rear portion of a vehicle body 1; and a horizontally openable back door 5 journaled to the rear portion so as to open/close through hinge portions 6a and 6b. The holding device for the vehicle back door holds the opening of the back door. The hinge portion has a hinge shaft portion 27 disposed between a vehicle width direction one side portion of the back door and the rear portion of the vehicle body, a fixed supporting portion 39 disposed on either one of the back door or the vehicle rear portion to fix the hinge shaft portion, and a movable supporting portion 33 disposed on the other from the fixed supporting portion, and supporting the back door so as to rotate about an axis of the hinge shaft portion. The movable supporting portion has a shoe member 51 capable of connecting/disconnecting on an inner surface side of the movable supporting portion.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a holding device for a vehicle back door that is held by an open side-opening back door.

Some automobiles (vehicles) having an opening at the rear of a vehicle body such as a wagon car have a bag door that opens and closes in the left-right direction, that is, a laterally open back door. Many back doors are only held in the fully open position (maximum opening position) by a stopper mechanism, etc., and are not held at an intermediate opening between the fully closed position and the fully open position. .
For this reason, in cases such as when loading cargo into the cargo space from a back door with an intermediate opening in a parking place with a slope, or when the degree to which the back door is opened is restricted, care should be taken with the opened back door. use.

  In view of this, a vehicle structure has been proposed that enables the laterally open back door to be held at an intermediate opening position. As disclosed in Patent Document 1 and Patent Document 2, the structure is such that one end of a stay member is pivotally attached to the rear part of the vehicle body, and the other end of the stay member is connected to a side opening type back door. The stay member is slidably supported by a rail member provided on the inner surface, the stay member is arranged between the rear part of the vehicle body and the laterally opening back door, and a plurality of locking mechanisms for the slide section (intermediate position) of the rail member are provided. In the structure, when the back door is used, a stay member end that slides using a locking mechanism is formed so that the back door is regulated stepwise at an intermediate opening.

  On the other hand, for the maintenance of vehicles, a detachable stay member is assembled between the striker at the rear of the vehicle body and the latch of the lateral door for maintenance of the vehicle so that the lateral door can be held at an intermediate opening. There are also tools.

JP 7-317410 A JP 2003-172059 A

However, in the case of the structures of Patent Document 1 and Patent Document 2, the opening degree of the laterally-opening type back door is regulated in stages, so that the back door cannot be held at any opening position. In addition, this structure is a large-scale structure such as a pivot structure for stay members, a rail structure, and a locking mechanism.
On the other hand, the structure using a commercially available detachable stay member can be a compact structure unlike the structures of Patent Document 1 and Patent Document 2, but it only regulates the laterally-opening door in one place. It is not possible to support a side-opening type back door that is often opened at any position.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle back door holding device that can hold a laterally open back door at an arbitrary opening position with a compact structure.

  An aspect of the present invention is a vehicle back door holding device that includes a rear opening of a vehicle body and a laterally open back door pivotally supported via a hinge portion at the rear of the vehicle body, and holds the opening degree of the back door. The hinge portion is disposed between one side of the back door in the vehicle width direction and the rear portion of the vehicle body and one of the back door and the rear portion of the vehicle body and fixes the hinge shaft portion. The fixed support portion and the fixed support portion are arranged on the other side and have a movable support portion that rotatably supports the back door around the axis of the hinge shaft portion. The movable support portion is on the inner surface side of the movable support portion. And a shoe member that can be contacted and separated.

According to the present invention, the laterally opening type back door is held by friction between the shoe member and the inner surface of the support portion.
Therefore, the side-opening back door can be held at an arbitrary opening position. In addition, since the shoe member is built in the hinge shaft, a compact structure is sufficient.

The perspective view which shows the holding | maintenance apparatus of the vehicle back door which concerns on the 1st Embodiment of this invention with the vehicle to which the apparatus is applied. The perspective view which expands and shows the A section in FIG. Sectional drawing which shows each part of an operation part with the holding | maintenance position and the state of a holding release, respectively. The perspective view explaining the built-in structure of a shoe member. The perspective view which expands and shows the shoe member. FIG. 6 is a plan cross-sectional view of the shoe member taken along line BB in FIG. 5. Sectional drawing which shows the principal part structure of the 2nd Embodiment of this invention.

The present invention will be described below based on the first embodiment shown in FIGS.
FIG. 1 shows a vehicle, for example, a wagon car, to which the holding device of the present invention is applied, and FIGS. 2 and 3 show a hinge part and an operation part with a built-in shoe member as main parts of a door holding mechanism, respectively. Reference numeral 6 denotes each part of the shoe member.
The main part of the wagon car will be described. In FIG. 1, reference numeral 1 denotes a vehicle body of the wagon car, 3 denotes an opening provided in the rear part of the vehicle body 1, and 5 denotes a back provided in the rear part of the vehicle body 1. Shows the door. One side of the back door 5 in the vehicle width direction is pivotally attached to the rear of the vehicle body via two upper and lower hinges 6a and 6b so as to be opened and closed in the left and right direction, and opens and closes the opening 3 from the side. In other words, it is a side-opening back door.

  The back door 5 has a flange portion 7 on the outer peripheral portion to which a door inner panel and a door outer panel (both not shown) arranged at a predetermined interval are joined, and the door inner panel is surrounded by the flange portion 7. A box portion 9 is provided, and a back window 11 is provided above the box portion 9. That is, the laterally opening type back door 5 has the flange portion 7 and the opening weather strip 13 provided around the entire opening edge of the opening 3 in close contact with each other by the rotation about the hinge portions 6a and 6b. The state in which the portion 9 enters, that is, the fully closed state in which the opening 3 is closed, is opened and closed to the state in which the flange portion 7 and the box portion 9 are farthest from the opening 3, that is, in the fully open state in which the opening 3 is fully opened (FIG. 1). Incidentally, the fully closed position of the back door 5 is locked by a striker at the rear of the vehicle body and a latch on the door side (both not shown).

  The wagon car is provided with a holding device 17 that holds the opened back door 5. The holding device 17 uses a door holding mechanism 21 using a shoe member 19 as shown in FIG. The door holding mechanism 21 has a structure in which the opening degree (between the fully closed state and the fully open state) of the back door 5 can be held at an arbitrary position by operating the shoe member 19 from the outside, for example.

For example, the door holding mechanism 21 includes hinge portions 6a and 6b assembled with the shoe member 19 as shown in FIGS. 2, 4 and 5, and an external operation portion 23 assembled with the back door 5 as shown in FIGS. (Corresponding to the operation unit of the present application) and a transmission unit 25 that relays between the external operation unit 23 and the shoe member 19 as shown in FIG. 1 are used.
Here, the hinge portions 6a and 6b have the same structure, and the structure of the hinge portion 6a is shown in FIGS. 2, 4 and 5 as a typical one.

  That is, the hinge part 6a (6b) will be described. The main part of the hinge part 6a (6b) is, for example, as shown in FIGS. 2 and 4, one side part in the vehicle width direction of the rear part of the vehicle body and the vehicle width direction of the back door 5. A columnar hinge shaft portion 27 disposed vertically (up and down direction) between one side portion, a vehicle body side bracket 29 disposed on one side portion of the rear portion of the vehicle body 1 sandwiching the hinge shaft portion 27, and A door-side bracket 31 disposed on one side portion (flange portion 7) of the back door 5 on the opposite side across the hinge shaft portion 27.

  More specifically, the vehicle body side bracket 29 includes, for example, a pair of short cylindrical movable cylinder portions 33 (corresponding to the movable support portion of the present application) that are rotatably fitted to the outer peripheral surfaces of both ends of the hinge shaft portion 27, and these movable portions. It has a bifurcated fixed seat 35 attached (for example, welded) to the cylindrical portion 33, and the fixed seat 35 is fixed to the rear portion of the vehicle body 1 with a fixture 37 (for example, a bolt member). The door-side bracket 31 is, for example, a short cylindrical fixed cylindrical portion 39 (fixed support of the present application) that is fitted and fixed (for example, press-fitted or the like) to an intermediate portion 27a (shown in FIG. 4) between the movable cylindrical portions 33 of the hinge shaft portion 27. And a fixed seat 41 attached (for example, welded) to the fixed cylinder portion 39. The fixed seat 41 is fixed to one side portion of the back door 5 (for example, a bolt member) ( It is fixed to the flange part 7). As a result, the back door 5 has the inner peripheral surface (inner surface) of the movable cylinder portion 33 surrounding the outer peripheral surface of the hinge shaft portion 27 as a support surface 33a (sliding surface), and the axial center of the hinge shaft portion 27 is fully closed. Is opened and closed (left and right) from the fully open position.

The shoe member 19 is incorporated in, for example, an end portion of the hinge shaft portion 27 that is surrounded by the movable tube portion 33, for example, an end portion adjacent to the fixed tube portion 39.
That is, the shoe accommodating portions 45 are respectively formed at the hinge shaft end portions on both sides of the hinge shaft portion 27 adjacent to the fixed cylinder portion 39. For example, as shown in FIGS. 4 and 5, the shoe housing portion 45 is provided with a plurality of, in this case, two small-diameter support portions on the side of the hinge shaft end portion surrounded by the support surface 33 a of the movable tube portion 33. The pin member 47 is formed, and the remaining end side is formed by a shaft member 49 having a short overall length, and an accommodation space in which the shoe member 19 is accommodated is secured between the intermediate portion 27a and the shaft member 49.

  Further, the shoe member 19 that fits in the accommodation space (the shoe accommodation portion 45) is a pair of semi-sealable members that are rotatably assembled to the support pin member 47 as shown in FIGS. It is composed of a circular shoe piece 51. That is, the pair of shoe pieces 51 has a friction surface 51a on the outer peripheral surface that can come in contact with and away from the support surface 33a, and a return biasing member 53 (see FIG. 6). Furthermore, the inner surface side of the pair of shoe pieces 51 has a pair of input portions 52 (FIG. 6), and when an operation force for opening the shoe pieces 51 is input to the input portions 52, FIG. Thus, the shoe piece 51 opens with the support pin member 47 as a fulcrum, and the friction surface 51a of the shoe piece 51 is pressed against the support surface 33a. That is, the opened back door 5 is restrained by friction generated between the friction surface 51 a of the shoe piece 51 and the support surface 33 a (inner surface) of the movable cylinder portion 33. The hinge portion 6b has the same structure.

As shown in FIGS. 1 and 3, the external operation unit 23 is configured, for example, by providing a lever member 55 on the free side surface of the box unit 9. For example, the lever member 55 is configured by storing a lever piece (single support) that can be raised and lowered via a fulcrum pin 56 in a storage recess 9 a provided on the free side surface of the box portion 9.
The lever member 55 is in a position where the back door 5 is held in the standing posture shown in FIG. 3B, and holds the back door 5 in the collapsed posture shown in FIG. The position to release. The posture of the standing lever member 55 is, for example, a locking portion 57 composed of a convex portion 57a provided on the fulcrum side of the lever member 55 and a convex portion 57b provided on the bottom surface of the concave portion 9a, that is, the convex portion 57a and the convex portion 57b. It is held by a detachable lock. Although not shown in the drawing, the posture of the tilted lever member 55 is also maintained by a similar structure. Note that a fingertip insertion portion 9b for raising the lever member 55 with the fingertip is provided at the end of the concave portion 9a.

  On the other hand, as illustrated in FIG. 1, the transmission unit 25 is configured by a transmission member, for example, a plurality of wire members 59 housed in the box unit 9, for example. As shown in FIGS. 2, 4 and 6, one end portions (inner members) of these wire members 59 are notched portions 61 (through holes) formed at the ends of the fixed cylinder portions 39 of the hinge portion 6 a and the hinge portion 6 b. Through the hole), the input portion 52 of each shoe piece 51 of the hinge portion 6a and the input portion 52 of each shoe piece 51 of the hinge portion 6b are connected.

  The other end portion (inner member) of each wire member 59 is connected to the lever member 55. Specifically, the connection position of the wire member 59 is a position that causes the wire member 59 to be pulled as the lever member 55 changes from a tilted position (holding release) to a standing position (holding), for example, holding release. When the posture is set, the eccentric position near the fulcrum pin 56 is set, and when the lever member 55 is operated to stand up, the wire member 59 is pulled in, and the operating force in the opening direction is transmitted to the shoe piece 51, and the back door 5. It has a structure that stops movement. That is, the opened back door 5 is held by the lever operation of the lever member 55.

Next, the operation of the holding device 17 configured as described above will be described.
That is, in order to store the luggage in the cargo space at the rear of the vehicle body, for example, the back door 5 is slightly opened, for example, to about 20 degrees (intermediate opening), and the movement of the back door 5 is stopped.
At this time, after opening the back door 5, the lever member 55 on the side surface of the back door 5 is operated from the holding release posture (falling posture) to the standing posture as shown in FIG. Then, the wire member 59 is pulled. Thereby, the operating force is input to the shoe pieces 51 (the shoe members 19) built in the hinge shaft portions 27 of the hinge portions 6a and 6b through the wire member 59, and the shoe pieces 51 are moved to the opening side. (FIG. 6).

  Then, the friction surface 51a of the shoe piece 51 is pressed against the surrounding support surface 33a (movable cylinder portion 33). Since the lever member 55 is kept in the standing posture, that is, the holding posture by the engagement of the convex portions 57a and 57b, the friction surface 51a of the shoe piece 51 and the support surface 33a (inner surface) of the movable cylinder portion 33 are maintained. The back door 5 is held at the open position as it is.

Therefore, the laterally open back door 5 can be held at an arbitrary opening position by the shoe member 19. Moreover, since the shoe member 19 is built in the movable cylinder portion 33, a compact structure is sufficient.
The shoe member 19 can hold the back door 5 with a strong holding force by using a pair of openable and closable shoe pieces 51. In addition, for the holding operation, the back door 5 is provided with an operation lever member 55 (external operation portion) that can be rotated between the holding position and the holding release position of the back door 5. (Transmission part) Since the structure which transmits to the shoe piece 51 was used, the back door 5 can be held at an arbitrary opening position with a simple structure and further a simple operation.

Instead of the wire member 59, a rod member or a link member may be used to transmit to the shoe piece 51 of the lever member 55.
FIG. 7 shows a second embodiment of the present invention.
In the present embodiment, the shoe piece 51 is operated using hydraulic pressure instead of the wire member, the rod member, and the link member as in the first embodiment described above. For example, the shoe piece 51 uses not the input part 52 but the telescopic piston part 62 that opens and closes the shoe piece 51. The lever member 55 uses a hydraulic pressure generating piston mechanism 63 that generates hydraulic pressure in accordance with the raising / lowering operation of the lever member 55. Then, the hydraulic pressure generating piston mechanism 63 and the expansion / contraction piston portion 62 of the shoe piece 51 are connected by a hydraulic pipe 65 that is a transmission member, and the shoe piece 51 is operated to open by the hydraulic pressure generated by the lever operation. It is made to let you. However, in FIG. 7, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

Even if it does in this way, there exists an effect similar to 1st Embodiment.
It should be noted that the configurations and combinations thereof in the above-described embodiments are examples, and it is needless to say that additions, omissions, substitutions, and other modifications of the configurations can be made without departing from the spirit of the present invention. Nor. Further, the present invention is not limited by the embodiment, and it is needless to say that the present invention is limited only by the “claims”. For example, in the first embodiment, the door side bracket is fixed with respect to the hinge shaft portion and the vehicle body side bracket is movable with respect to the hinge shaft portion. The present invention may be applied to a hinge portion that is movable with respect to the portion and the vehicle body side bracket is fixed to the hinge shaft portion. Of course, although the fixed support part of the door side bracket and the movable support part of the vehicle body side bracket are cylindrical, other shapes may be used.

DESCRIPTION OF SYMBOLS 1 Car body 5 Side-opening type back door 6a, 6b Hinge part 23 External operation part (operation part)
27 Hinge shaft part 33 Movable cylinder part (movable support part)
39 Fixed cylinder (fixed support)
51 Shoe piece (Shoe member)
55 Lever member 59 Wire member (Transmission part)

Claims (3)

A vehicle back door holding device that includes a laterally open back door pivotally supported to be opened and closed via a hinge portion at the rear and the rear of the vehicle body, and holds the opening degree of the back door,
The hinge part is
A hinge shaft disposed between one side of the back door in the vehicle width direction and the rear of the vehicle body;
A fixed support portion disposed on one of the back door and the rear portion of the vehicle body and fixing the hinge shaft portion;
A movable support part disposed on the other side of the fixed support part and supporting the back door so as to be rotatable around the axis of the hinge shaft part;
The movable support part has a shoe member that can be contacted and separated on the inner surface side of the movable support part.   The vehicle back door holding device according to claim 1, wherein the shoe member includes a pair of shoe pieces. The back door includes an operation portion having a lever member capable of rotating the shoe member to a holding position and a holding release position of the back door, and a transmission member that transmits the displacement of the lever member to the shoe member. The vehicle back door holding device according to claim 1, further comprising a transmission unit.

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