JP2006056433A - Folding type door and automobile with folding type door mounted thereon - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a back door dispensing with a large space in the rear of a vehicle body in an open state, excellent in operating property, simple in structure and high in safety. <P>SOLUTION: This folding type door for an automobile is devised so that a pivotally mounted part is folded and opened to be projected out of the vehicle body by pivotally mounting an upper end of a lower side door on a lower end of an upper side door pivotally connected to the car body side. Rolling wheels are respectively mounted on both ends in the neighborhood of the lower end of the lower side door, rails engaging these wheels and vertically guiding these wheels are respectively provided on the left and right sides on an inside surface of an opening part formed on the vehicle body and falling preventive parts to prevent natural falling of the rolling wheels are provided on upper end parts of these rails. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a folding door and an automobile to which the door is attached.

  The demand for so-called one-box cars such as the wagon type, van type, and hatchback type has increased in recent years due to lifestyle changes and convenience in ordinary homes, compared to conventional sedan type passenger cars that have been dominant as passenger cars. .

  Such an automobile is provided with an opening / closing door (hereinafter referred to as a “back door”) of a cargo bed portion at an opening provided in a rear surface portion of the vehicle.

  A back door in a general one-box car will be described. As shown in FIG. 6, both upper ends of the back door are pivotally supported on the rear end of the roof 110 so as to be rotatable in the vertical direction. With the handle 130, the back door 120 itself was opened in a state of being flipped up rearward and upward. In the figure, 100 is a one-box car, 140 is a hinge part for pivotally supporting the back door 120, and 150 is a damper. Of course, the back door is provided with a lock mechanism and a lock release lever for releasing the lock mechanism (not shown).

  However, in the above configuration, when the back door 120 is opened, a space indicated by L in the figure is required at the rear of the one box car 100 as a minimum.

  Normally, when loading and unloading luggage, it is often done with the vehicle parked from the back in a parking lot or the like, but if there is a obstacle W such as a wall or fence behind the vehicle, the back door 120 is opened at the normal parking position. Because of this, there is a case where it is inconvenient that the vehicle is parked in a state where there is sufficient room behind the vehicle, the baggage is taken in and out, and the vehicle is moved backward again to park.

  Therefore, the back door is divided into an upper door and a lower door, and these are connected via hinges. When the middle door is folded, the connecting portion projects to the rear of the vehicle body. A folding back door that does not require much space behind has been proposed (see, for example, Patent Document 1).

In addition, in order to stabilize the opening and closing operation of such a folding back door, rollers are attached to both sides of the lower end of the lower door of the back door, while the rollers are guided to roll on both sides of the opening on the vehicle body side. There has also been proposed a structure in which a rail is provided, and the back door is bent when the lower end of the lower door rises along the rail (see, for example, Patent Document 2).
JP 2002-283848 A JP 2003-97141 A

  However, in the structure disclosed in Patent Document 1, a door lock device is provided on the lower door to prevent the lower door from drooping at the time of middle folding, and this is engaged with a striker provided on the upper door. It has a possible configuration. Therefore, when closing the back door, the door lock device must be released, and it is troublesome, and a door stay is provided to maintain the open state of the back door, but this door stay is exposed when the back door is opened. I was getting in the way of loading and unloading my luggage. This door stay may have a damper structure that assists in opening the back door, but in any case it is a hindrance in position and may be damaged when it is loaded or unloaded. There was also.

  Further, the structure disclosed in Patent Document 2 relates to a back door of a box-type cargo bed such as a truck, and includes a tip of a telescopic rod of an actuator provided under the floor of the cargo bed and a lower end of a lower door of the back door. The wire is connected by a wire or the like, and the wire is bent up and down through an appropriately arranged pulley. Therefore, the configuration is large and complicated, and even though it can be used for trucks, it is unsuitable for use in passenger car type one-box cars.

  In addition, since both of the structures disclosed in Patent Documents 1 and 2 are folded back in the outward direction, an opening is generated in the folded portion between the upper door and the lower door, Although there is a risk of pinching fingers and fingers, no response is disclosed.

  An object of the present invention is to provide a folding door that can solve the above-described problems and an automobile to which the door is attached.

  In the first aspect of the present invention, the upper end of the lower door is pivotally attached to the lower end of the upper door having the upper end pivotally connected to the vehicle body side, and the pivot is bent so that the pivot attachment portion protrudes outward of the vehicle body. A folding door for an automobile that is opened and has a rolling wheel attached to both ends near the lower end of the lower door, and a rail that engages the rolling wheel and guides it up and down, Provided respectively on the left and right sides of the inner side of the opening formed in the vehicle body, and at the upper end of this rail, a fall prevention part for preventing the natural fall of the rolling wheel was provided.

  In this invention of Claim 2, the said fall prevention part comprised the edge part of the rail in the reverse direction with respect to the middle folding direction of the said middle folding door.

  In this invention of Claim 3, the opening assistance means was attached between the said upper side door and the lower side door.

  In this invention of Claim 4, when the folding door was opened, it was provided with the foreign material insertion prevention means which prevents a foreign material from entering into the space formed in the connection part of the said upper door and lower door. .

  In this invention of Claim 5, the illumination means which turns on / off in response to opening and closing of a folding door is provided in the surface of the said lower door.

  In this invention of Claim 6, the illumination means to which illumination intensity increases on the surface of the said lower door from the time of obstruction | occlusion at the time of a folding door opening is provided.

  In this invention of Claim 7, it was set as the motor vehicle attached to the opening part provided in the vehicle body rear part surface in any one of the said Claims 1-7.

  (1) According to the first aspect of the present invention, the upper end of the lower door is pivotally attached to the lower end of the upper door having the upper end pivotally connected to the vehicle body side, and the pivot attachment portion protrudes outward from the vehicle body. A folding door for an automobile that is folded and opened to the middle, and has rolling wheels attached to both ends near the lower end of the lower door, and engages the rolling wheels and guides them up and down. Rails are provided on the left and right sides of the inner surface of the opening formed in the vehicle body, and a fall prevention portion for preventing the rolling wheels from falling naturally is provided at the upper end of the rail. Therefore, the space outside the car body required when opening compared to a normal single door can be greatly reduced, and when the folding door is opened, the door can fall naturally without providing any special auxiliary means. Since it can be prevented, it can be used safely.

  (2) In the present invention described in claim 2, since the fall prevention part is configured such that the end of the rail is inserted in a direction opposite to the middle folding direction of the middle folding door, the door is opened when the door is opened. The weight acts on the rolling wheels, and the natural fall of the door can be reliably prevented while having a simple structure.

  (3) In the present invention according to claim 3, since the opening assisting means is attached between the upper door and the lower door, the folding door can be easily opened and opened when the folding door is opened. Since the auxiliary means itself is located between the upper door and the lower door, it does not interfere with loading / unloading of luggage.

  (4) According to the present invention as set forth in claim 4, there is provided foreign matter insertion preventing means for preventing foreign matter from entering a space formed at the connecting portion between the upper door and the lower door when the folding door is opened. As a result, when the folding door is closed, there is no risk that a hand or a finger may be accidentally pinched between the connecting portions.

  (5) In the present invention according to claim 5, since the illumination means for turning on and off in conjunction with opening and closing of the folding door is provided on the surface of the lower door, the interior of the vehicle and the feet are illuminated when the door is opened. This makes it very easy to use at night.

  (6) In the present invention described in claim 6, by providing illumination means on the surface of the lower door that increases the illuminance as compared with when the folding door is opened, the interior of the vehicle and the feet are illuminated. In addition, the usability during night work is extremely good, and this illumination means can also be used as a license plate irradiation lamp during normal driving.

  (7) In the present invention described in claim 7, since the folding door of any one of claims 1 to 6 is an automobile attached to an opening provided on the rear surface of the vehicle body, Compared to a single door, it requires less space behind the vehicle body and can be opened and closed at the normal parking position. In addition, the operability and safety, and the workability of loading and unloading can be improved while having a simple structure.

  In the present invention, the upper end of the lower door is pivotally attached to the lower end of the upper door pivotally connected to the vehicle body side, and the pivoted portion is folded and opened so that the pivot attachment portion protrudes outward from the vehicle body. A vehicle-type folding door for automobiles, in which rolling wheels are attached to both ends near the lower end of the lower door, and rails for engaging the rolling wheels and guiding them up and down are formed in the vehicle body. The rail is provided on each of the left and right sides of the inner side surface, and at the upper end of the rail, a fall prevention portion for preventing the rolling wheel from falling naturally is provided.

  In other words, while obtaining stable operability using the rails provided on the vehicle body side, the space outside the vehicle body required when opening compared to a normal single door can be greatly reduced, and in the door open state a special Even if an auxiliary means is not provided, the door can be prevented from falling naturally.

  The fall prevention part can be configured by inserting the end of the rail in a direction opposite to the middle folding direction of the middle folding door, and the weight of the door acts on the rolling wheel when the door is opened. Although it has a simple structure using the door, it can reliably prevent the door from falling naturally.

  This folding door can be suitably used as a back door of an automobile, and is preferably attached to an opening provided on the rear surface of the vehicle body and used as an opening / closing door such as a cargo bed.

  With such a configuration, when the door is opened, a space behind the vehicle body is not required as compared with a normal single door, and the door can be opened and closed at a normal parking position. In addition, as described above, the operability and safety, and the workability for loading and unloading luggage can be improved with a simple structure.

  Moreover, an opening auxiliary means can be attached between the upper door and the lower door.

  For example, by using a cylinder-type damper device or the like, the folding door can be opened easily, and when the folding door is opened, the opening assisting means is located between the upper door and the lower door. It does not get in the way of taking in and out, and it does not impair usability.

  In addition, it is preferable to include a foreign matter insertion preventing means for preventing foreign matter from entering a space formed in the connecting portion between the upper door and the lower door when the folding door is opened.

  That is, as long as the back door is folded outward, an opening is formed in the middle folding portion between the upper door and the lower door, and a space is formed in the opening. With the insertion preventing means, the hand or finger does not enter the space in the opening of the folded portion, and there is no possibility of being caught, so that an operation such as closing the door can be performed naturally in a safe state.

  Furthermore, illumination means that is turned on and off in conjunction with opening and closing of the folding door can be provided on the surface of the lower door.

  This lamp can illuminate the interior of the vehicle and the feet when the door is opened, so that it can be used as a work light, and the convenience during night work such as loading and unloading at night becomes very good.

  Such illumination means can be provided independently or, for example, can also be used as a license lamp that irradiates a license plate during normal running. In that case, it is desirable to have a configuration in which the illuminance increases when the door is opened than when the door is closed.

  By adopting such a configuration, it is possible to use it as a work lamp with increased illuminance when the door is opened, while normally being used as a number lamp.

Example 1
Hereinafter, specific examples of the middle folding door and the automobile including the door according to the present invention will be described with the middle folding door employed as a back door with reference to the drawings. 1 and 2 are side views showing a rear portion of a one-box type automobile having a back door according to the present embodiment, and FIG. 3 is a rear view of the automobile.

  As shown in the figure, the back door 2 according to the present embodiment is pivotally connected to the rear end of the roof 10 of the automobile 1 via a pair of left and right upper hinges 3 (3).

  The back door 2 is divided into an upper door 21 and a lower door 22 each having a substantially rectangular shape of approximately the same size, and the doors 21 and 22 are a pair of left and right central hinges that serve as pivoting portions. 23 (23). At the time of opening, the back door 2 projects so as to protrude rearward of the vehicle body (on the right side in the figure) as shown by the one-dot chain line in FIG. 1 and as indicated by the solid line in FIG. It is configured to be broken. Therefore, the space L required behind the vehicle body when the door is opened can be halved compared to a conventional single door (see FIG. 6). Therefore, if there is a wall W or the like behind the parking space or the like, the back door 2 can be opened and the luggage can be taken in and out even if the vehicle is parked at a predetermined position from the back.

  As shown in FIG. 1, the upper door 21 according to the present embodiment constituting the back door 2 is formed in a substantially L shape in sectional view in which the upper end portion is gently bent toward the vehicle body mounting side. The left and right parts are pivotally attached to the rear end of the roof 10 via the upper hinge 3. Reference numeral 24 denotes a glass window fitted in the upper door 21.

  On the other hand, the lower door 22 extends upward with a slight gradient from the lower half 22b to the vehicle body side, and the upper left and right ends of the lower door 22 are substantially vertical when closed. The upper half 22a is connected via a lower end and the central hinge 23 (23), and a number plate 25 is attached to the center of the lower half 22b.

  Further, a cylinder type damper 4 is attached between the upper door 21 and the lower door 22 as an opening assisting means. With the arrangement of the damper 4 as shown in FIG. 2, the damper 4 is positioned between the upper door 21 and the lower door 22 in the open state where the back door 2 has a substantially square shape as shown in FIG. 2. Therefore, there is no hindrance to taking in and out of the luggage, and there is no possibility that an object will hit the damper 4.

  A handle 27 is attached to the center of the lower half 22b of the lower door 22, and rolling wheels 28 (28) are rotatably attached to the left and right lower ends of the lower half 22b. Rails 12 (12) for engaging and guiding the rolling wheels 28 (28) are provided on the left and right inner surfaces of the opening formed on the rear surface of the vehicle body.

  With such a configuration, when the back door 2 is opened, the user only has to pull the handle 27 and pull it upward, and the back door 2 rises with a stable movement while being folded, and at this time, a large force is applied. It doesn't cost. Although not shown, the back door 2 is provided with locking means that engages with the vehicle body when closed, and a lever 29 that releases the locking means is provided on the back side of the handle 27.

  Further, a drop prevention portion 5 is provided at each upper end of the rail 12 (12) to prevent the rolling wheel 28 (28) from falling naturally.

  In this embodiment, the fall prevention portion 5 is configured by entering the upper end portion of the rail 12 in the direction opposite to the folding direction of the back door 2, that is, the front side of the vehicle body. The amount of intrusion for configuring the fall prevention unit 5 may be slightly larger than the radius of the rolling wheel 28.

  With this configuration, when the back door 2 is opened, the weight of the back door 2 acts as an action of pushing the rolling wheel 28 (28) forward (front of the vehicle body), so that natural fall is prevented. Thus, in the present embodiment, the natural fall of the back door 2 can be reliably prevented while having a simple structure.

  Further, although the number lamp 6 is provided on the front side surface of the lower door 22, in this embodiment, the illuminance of the number lamp 6 is increased more than when the back door 2 is closed than when the back door 2 is closed. . Therefore, as shown in FIG. 2, when the back door 2 is opened, the inside of the vehicle and the feet can be illuminated, and the usability during night work is extremely good.

  By the way, the central hinge 23 (23) for connecting the upper door 21 and the lower door 22 protrudes from the tip of the stay 26 (26) extending inward (vehicle body side) from the left and right ends of the upper door 21. Further, the lower door edge of the upper door 21 and the upper edge of the lower door 22 are curved with no edges, so that the back door 2 is closed as shown in FIGS. Even in this state, the upper door 21 and the lower door 22 are not closed in a fully contacted state, so that even if a hand is inserted into the space portion Q formed in the connecting portion, it will not be caught as much as possible. I have to.

  As described above, in this embodiment, since the folding back door 2 can be opened and closed using the rail 12 provided on the vehicle body side, its operation is stable and light. Realizes operability and safety. In addition, the space L outside the vehicle body that is required when the door is opened can be greatly reduced compared to a normal single door, and when the back door 2 is opened, the back door 2 can be provided without any special auxiliary means. Can be prevented from falling naturally. Furthermore, in this embodiment, there is provided lighting means that can be used as a normal number lamp 6 and can be used as a work lamp that is automatically turned on when the back door 2 is opened to irradiate the inside of the office or feet. This improves workability in loading and unloading of luggage.

(Example 2)
Next, the back door 2 according to the second embodiment will be described with reference to FIG. In this embodiment, the same components as those in the previous embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  This embodiment is different from the first embodiment in the following points.

  That is, on the surface of the lower door 22, apart from the number lamp 6, a work lamp 60 is provided as an illumination means that is turned on / off in conjunction with opening and closing of the back door 2.

  In the present embodiment, this work lamp 60 is provided at the front end of the handle 27 and, as shown in the figure, lights up in conjunction with the door opening, enables irradiation from the inside of the vehicle to the rear of the vehicle body, and interlocks with the door closing operation. And turn it off. As an example of the change of the work lamp 60, the lamp is normally turned off in conjunction with the opening / closing of the back door 2, but a switch provided separately in the driver's cab or near the handle 27 can be used even when the door is closed. Irradiation can also be performed as indicated by the alternate long and short dash line B.

  Further, in this embodiment, the handle 27 provided with the work lamp 60 has a shape that is extended obliquely upward in a side view. That is, as shown in FIG. 4, when the back door 2 is in an open state, when the back door 2 is to be closed, the handle 27 protruding rearward interferes with the gap between the upper door 21 and the lower door 22. Since the hand is extremely difficult to enter the space Q, safety is further increased.

(Example 3)
Next, the back door 2 according to the third embodiment will be described with reference to FIG. Also in the present embodiment, the same components as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  The present embodiment is different from the first and second embodiments in the following points.

  In this embodiment, when the folding back door 2 is opened, a foreign object, that is, a foreign object, ie, a hand or a finger, is prevented from entering the space Q formed at the connecting portion between the upper door 21 and the lower door 22. The insertion prevention means 7 is provided.

  The foreign matter insertion preventing means 7 is formed of a flexible material such as rubber or synthetic resin, and includes a plate-like body 70 having a length that crosses the back door 2, and is connected to the upper door 21 and the lower door 22. It functions as a cover that covers the part.

  And the long side edge part of the said plate-shaped body 70 is made into the attachment base end, and this is pivotally attached in the front-end | tip part of the upper door 21. As shown in FIG. Further, rubber seals 71 are provided at portions where the end portions of the upper door 21 and the lower door 22 that are both curved contact each other to prevent water from entering the vehicle. Reference numeral 21b denotes a proximal storage space formed at the distal end of the upper door 21, and 72 denotes a pivot.

  In addition, the plate-like body 70 is brought close to the extent that the tip end comes into contact with the surface of the lower door 22 by extending the tip side downward and curving it halfway.

  Therefore, when the plate-like body 70 serves as a cover for the connecting portion between the upper door 21 and the lower door 22 and closes the back door 2, a hand or a finger enters the space Q formed in the connecting portion. Since there is nothing, it becomes a very safe structure. Moreover, since the plate-like body 70 rotates about the pivot 72, the plate-like body 70 rotates even if a hand or a finger is mistakenly sandwiched between the plate-like body 70 and the lower door 22, so that There is no risk of injury. As described above, in this embodiment, the safety is further improved as compared with the first and second embodiments.

  As described above, the folding door according to the present invention has been described as being applied to the back door 2 of the one-box car through each embodiment. However, the present invention is not necessarily limited to the back door 2, for example, a vehicle body It can also be mounted on the side.

It is a side view of the rear part of the one box type automobile concerning Example 1 which shows the state where the back door closed. It is a side view of the rear part of the one box type automobile concerning Example 1 which shows the state where the back door opened. It is a rear view of the same car. 6 is a side view of a rear portion of a one-box type automobile according to Embodiment 2. FIG. 6 is a side view of a rear portion of a one-box type automobile according to Embodiment 3. FIG. It is a side view of the rear part of the conventional one box type automobile.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Back door 5 Fall prevention part 4 Damper 6 Number light 7 Foreign object insertion prevention means 12 Rail 21 Upper door 22 Lower door 23 Central hinge 28 Rolling wheel 60 Work light

Claims (7)

An automobile in which the upper end of the lower door is pivotally attached to the lower end of the upper door, the upper end of which is pivotally connected to the vehicle body side, and the pivoted portion is folded open so as to protrude outward from the vehicle body. A foldable door,
A rolling wheel is attached to both ends near the lower end of the lower door, and rails for engaging and guiding the rolling wheel up and down are provided on the left and right sides of the inner surface of the opening formed in the vehicle body. A folding door characterized in that a fall prevention part for preventing the natural fall of the rolling wheel is provided at the upper end of the rail. 2. The middle folding door according to claim 1, wherein the fall prevention portion is configured such that an end portion of a rail is inserted in a direction opposite to a middle folding direction of the middle folding door. The folding door according to claim 1 or 2, wherein an opening auxiliary means is attached between the upper door and the lower door. 4. A foreign matter insertion preventing means for preventing foreign matter from entering a space formed in a connecting portion between the upper door and the lower door when the folding door is opened. Or a folding door according to item 1. The middle folding door according to any one of claims 1 to 4, wherein illumination means is provided on the surface of the lower door to turn on and off in conjunction with opening and closing of the middle folding door. The foldable door according to any one of claims 1 to 4, wherein an illuminating means is provided on the surface of the lower door so that the illuminance increases when the foldable door is opened compared to when closed. An automobile comprising the middle folding door according to any one of claims 1 to 6 attached to an opening provided on a rear surface of a vehicle body.

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