JPH0559872A - Electric opening / closing device for moving vehicles - Google Patents

Abstract

(57) [Abstract] [Purpose] The opening height of the closed type storage unit of a moving vehicle can be made large, and loading and unloading of luggage can be performed easily and quickly, and the opening / closing door can be moved up and down by a drive motor. Even if it cannot be operated, the opening / closing door can be reliably opened. [Structure] A winding auxiliary shaft 14 having a biasing ammunition 13 coaxially mounted thereon and an endless chain 9 are suspended above the closed type storage unit 1 in order to bias the opening / closing door 3 in the winding direction. Rotation axis 1
6 is provided with a gear mechanism 10 interlockingly connected,
At the bottom panel 4a suspension position of the endless chain 9,
The base 19a of the L-shaped rotating fitting 19 formed by projecting the bottom 19b toward the inside of the closed housing 1 and the steady rest roller 20.
Are connected in the vertical direction, and the lower end of the lowermost panel 4a is pivotally attached to the tip of the bottom side 19b of the L-shaped rotating fitting 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing door of a hermetically sealed storage such as an aluminum van provided on a bed of a moving vehicle, and in particular, opening / closing the door when fully opened while maintaining a smooth and light lifting operation of the opening / closing door. The present invention relates to an electric opening / closing door device in a moving vehicle capable of ensuring the effective opening height of the above.

[0002]

2. Description of the Related Art Conventionally, in a mobile vehicle in which a sealed storage such as an aluminum van is provided on a luggage carrier, an opening is formed at the rear or side of the sealed storage, and the opening extends from both sides of the opening to the ceiling. Curved guide rails are installed alongside, an open / close door is interposed between the guide rails, and the lowermost panel of the open / close door is hung up and down freely in an endless chain with the upper part of the storage section as a folding fulcrum. Further, there is known a structure in which the endless chain is wound and rewound by driving the drive motor to rotate forward and backward to open and close the opening. In the above-mentioned configuration, the upper end of the guide rail standing upright on both sides of the opening of the closed type storage is curved horizontally in the ceiling, and a plurality of panels are vertically connected between the guide rails. The open / close door is mounted via a guide roller so as to be able to move up and down, and the endless chain is suspended between a suspension gear provided above and a drive motor installed under the floor, and the endless chain is placed on the endless chain. The lower surface of the panel located directly below is directly connected, and the open / close door is moved up and down by the forward / reverse driving of the drive motor.

[0003]

By the way, in general, when the opening / closing door having the above-mentioned structure is attached to the opening, not limited to the closed type storage portion of the moving vehicle, the opening / closing door is related to the width and height of the opening. It is important to secure a clearance in the opening direction as much as possible when fully opened.However, with the above-mentioned configuration, the guide rollers pivotally supported on both sides of the panel inevitably located at the bottom of the opening / closing door and the endless chain are inevitable. The panel is restricted by the relationship with the connecting position of the guide rail, and the panel stops at the curved portion of the guide rail while keeping the state of being tilted backward. Therefore, not only a sufficient clearance in the opening direction cannot be secured, but also the opening portion There is a danger that the dustproof and watertight sealing material installed over the entire width of the lintel may be damaged by repeated contact with the above panel. Down is pulling would bent,
It has a drawback that it cannot perform a smooth lifting drive. The present invention, in view of the actual situation as described above,
It was created to eliminate the conventional drawbacks, and its purpose is to ensure a sufficient height of the opening inside the limited enclosed type storage compartment while using either a drive motor or manual operation. It is an object of the present invention to provide an electric door opening / closing device in a moving vehicle that can smoothly and reliably perform opening / closing operation of an opening / closing door.

[0004]

In order to solve the problems, the technical means adopted by the present invention is to provide a shutter type opening / closing door at the rear or side of the closed type storage part, and to arrange the bottom panel of the opening / closing door. In an electric door for a moving vehicle that is lifted up and down by an endless chain suspended between the upper part of the storage part and the floor surface, in order to urge the opening / closing door in the winding direction on the upper part of the storage part. , A gear mechanism that interlocks a winding auxiliary shaft that coaxially mounts a biasing ammunition machine with a suspension shaft that suspends the endless chain, and at the bottom panel hanging position of the endless chain. , The vertical side of the L-shaped rotating metal fitting, which is formed by projecting the bottom of the L-shaped rotating metal fitting, is vertically connected to the bottom of the L-shaped rotating metal fitting. Characterized by pivoting the lower end of the bottom panel A.

[0005]

Therefore, according to the present invention, the height of the opening of the hermetically-sealed storage portion can be made large, and the loading and unloading of luggage can be carried out easily and promptly, and the opening / closing operation of the opening / closing door by the drive motor can be performed. Even if the door cannot be opened, the opening / closing door can be reliably opened.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 to 7, reference numeral 1 denotes a box-shaped hermetically-sealed storage portion provided at a rear portion of a mobile vehicle (not shown). ,
A shutter type opening / closing door 3 is mounted so as to be able to move up and down. The shutter type opening / closing door 3 is configured by vertically connecting a plurality of panels 4, 4, ..., and guide rollers 5, 5, ... Are pivotally supported at both side ends of each panel 4, 4 ,. In addition, guide rails 6 for guiding the guide rollers 5, 5, ... Are provided along the curved inner wall 7 of the opening 2 from the vertical inner wall 7 to the inner wall 8 of the ceiling. Further, sub-rails 6b, 6b for guiding the steady rest rollers 20, 20, ..., Which will be described later, are arranged in parallel on the vertical portions of the guide rails 6, 6. Of the panels 4, 4, ..., An endless chain 9 having L-shaped rotating metal fittings 19, 19 described later is connected to the panel 4a located at the bottom, and the lintel of the opening 2 is connected. A gear mechanism 10 mounted on the upper part of the portion 2a,
The endless chain 9 is suspended between the closed type storage unit 1 and a drive mechanism 11 installed under the floor 1a, and the shutter type opening / closing door 3 is driven to move up and down. A dustproof and watertight sealing material 2b is mounted over the entire width.

The gear mechanism 10 includes brackets 12, 1
Winding auxiliary shaft 14 in which a biasing ammunition 13 is coaxially mounted between the two
A driven gear 1 in which urging gears 15, 15 pivotally mounted on both ends of the winding auxiliary shaft 14 are pivotally supported by suspension shafts 16, 16.
7 and 17 are connected to each other via interlocking chains 17a and 17a, and suspension gears 18 and 18 are axially supported by the tip ends of the suspension shafts 16 and 16, respectively.

On the other hand, on the lower surface of the panel 4a located at the lowermost part, L-shaped rotating metal fittings 19 and 19 each having a vertical side 19a and a bottom side 19b are provided. The endless chain 9 is pivotally attached to the side of the closed type storage unit 1 by a length L from the position, and the precession rollers 20, 20 ... Are mounted at predetermined intervals above and below the hanging side 19a. Sub-rails 6b, 6b are inserted and connected, and the steady rest rollers 20, 20 ...
Traveling in the sub-rails 6b, 6b, noise caused by sliding contact between the endless chain 9 and the sub-rails 6a, 6a, and the panel 4 pivotally attached to the L-shaped rotating metal fittings 19, 19 are generated.
It is designed to prevent the deflection of a. Incidentally, 21 is a drive motor of the drive mechanism 11, 22 and 23 are windings of the endless chain 9 driven by the drive motor 21, respectively.
Rewinding gear, 22a is wound on both ends, rewinding gear 22,
It is a rotary shaft that supports 22.

In order to close the opening 2 with the shutter-type opening / closing door 3 in the above-described structure, the drive motor 21 of the drive mechanism 11 is started to wind up / rewind gears 22, 23.
The endless chain 9 is driven in the direction of arrow A via.
As the chain is driven in the direction of the arrow A, the shutter-type opening / closing door 3 sequentially descends from the storage position of the ceiling inner surface 8 along the guide rails 6 and 6 from the panel 4a located at the bottom.
When the panel 4a lands on the floor 1a, the limit switch (not shown) is turned off, and the chain drive of the drive mechanism 11 is stopped. During this lowering operation, the winding assist shaft 14 of the gear mechanism 10 moves the driven gears 17, 17 and the interlocking chain 17
a, 17a and the biasing gears 15, 15 rotate,
The urging ammunition machine 13 accumulates the elastic force in the upward opening direction of the shutter type opening / closing door 3.

Next, when the drive motor 21 of the drive mechanism 11 is driven in the reverse direction to drive the endless chain 9 in the direction of arrow B, the shutter type opening / closing door 3 rises along the guide rails 6, 6 and the ceiling is successively installed. It is stored in the storage position of the inner surface 8, but at this time, when the lower surface of the lowermost panel 4a is held at the curved portion 6a in a backward inclined state and stopped, as shown in FIG.
Since the endless chain 9 is pivotally attached to the inner side of the panel by a length L from the hanging center position of the endless chain 9, the endless chain 9 is pivoted inward with the pivotal position as a base point, and the lower surface of the panel 4a is fixed to the endless chain. The endless chain 9 is prevented from being pulled toward the panel 4a side from the hanging position of 9 and the sealing member 2b for dustproof and watertightness fitted over the entire width of the lintel 2a and the lower surface of the panel 4a. Since the contact between the two is cut off, the shutter type opening / closing door 3 can be smoothly moved up and down.

Further, the shutter type opening / closing door 3 in the closed state is applied with an elastic holding force in the ascending / opening direction by the biasing ammunition 13 mounted on the winding auxiliary shaft 14 of the gear mechanism 10. For this reason, the drive motor 21
Even in an emergency in which the shutter cannot be driven, the shutter-type opening / closing door 3 can be quickly opened without imposing a great deal of labor on the operator.

[0012]

In summary, according to the present invention, a shutter-type opening / closing door is provided at the rear or side of the closed type storage section, and the lowermost panel of the opening / closing door is suspended between the upper section of the storage section and the floor surface. In the electric opening / closing door in a moving vehicle that is hung up and down freely on a turned endless chain, the upper part of the storage section is
In order to urge the opening / closing door in the winding direction, a gear mechanism is provided in which a winding auxiliary shaft that coaxially mounts a biasing ammunition and a suspension shaft that suspends an endless chain are interlocked and connected. At the lowermost panel hanging position of the endless chain, the vertical side of the L-shaped rotating metal fitting, which is formed by projecting the bottom side toward the inside of the closed type storage section, and the steady roller are respectively connected in the vertical direction, and Since the lower end of the lowermost panel is pivotally attached to the bottom end of the L-shaped rotating metal fitting, it is possible to secure a sufficient height of the opening in the opening direction when attaching the opening / closing door. The opening area can be made large, and while preventing the endless chain and the lowermost panel from being stretched and bent in the fully opened state, the dustproof and watertight seal material installed over the entire width of the opening lintel and the maximum May avoid contact with the bottom panel It is possible to prevent breakage of the sealing material, and moreover, the opening / closing door can be smoothly and lightly moved up and down by any of manual and electric means, so that the opening / closing door can be safely moved up and down safely. It has a very useful new effect of being able to.

[0013]

[Brief description of drawings]

FIG. 1 is an overall front view of a main part as viewed from the inside of a sealed storage unit.

FIG. 2 is a left-side vertical cross-sectional view of a hermetically-sealed storage part with some parts omitted.

FIG. 3 is an enlarged view of a main part.

FIG. 4 is a plan view of an essential part of FIG.

5 is a bottom view of the main part of FIG. 1. FIG.

FIG. 6 is a partially omitted vertical sectional view showing a closed state of the electric opening / closing door.

FIG. 7 is an operation explanatory diagram of a main part showing a connected state of the endless chain and the electric opening / closing door.

FIG. 8 is an explanatory view of the operation of the main parts showing the electric open / close door in a fully opened state.

[Explanation of symbols]

 1 Closed Storage Section 3 Shutter Type Door 4a Bottom Panel 9 Endless Chain 10 Gear Mechanism 13 Biasing Machine 14 Winding Assist Shaft 16 Suspension Shaft 19 L-Shaped Metal Fitting 20 Steady Roller

Claims (1)

[Claims] 1. A shutter-type opening / closing door is provided at a rear side or a side of a closed type storage portion, and a lowermost panel of the opening / closing door is vertically movable to an endless chain suspended between an upper portion of the storage portion and a floor surface. In an electric opening / closing door for a suspended moving vehicle, a winding auxiliary shaft and an endless chain in which a biasing ammunition is coaxially mounted in order to urge the opening / closing door in the winding direction are provided in the upper part of the storage section. A gear mechanism that interlocks with a suspended suspension shaft is provided, and at the bottom panel suspension position of the above-mentioned endless chain, an L-shaped rotation is formed with the bottom side facing the inside of the closed type storage section. An electric door for a moving vehicle, characterized in that the hanging side of the moving metal fitting and the steady rest roller are respectively connected in the vertical direction, and the lower end of the bottom panel is pivotally attached to the bottom end of the L-shaped rotating metal fitting. apparatus.