JPH0613346Y2 - Automatic shutter door opening / closing device for van type vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an automatic opening / closing device for a shutter door provided on the rear surface of a luggage box in a van type vehicle.

(Prior Art) Conventionally, the opening and closing device for the shutter door of a van-type vehicle has been actually
As disclosed in Japanese Patent No. 4524, there is a hoisting device above the door frame. This hoisting device is composed of springs and wire ropes provided on the left and right ends, and the spring force of the springs and the weight of the shutter door are weight-balanced via the wire rope to facilitate opening and closing of the shutter door. there were. In the shutter door having such a structure, even though the spring force and the own weight of the shutter door are balanced, the opening and closing operation of the shutter door is unexpectedly difficult because the weight of the shutter door is considerably large. .

In order to solve this drawback, the present applicant has previously disclosed it as "an electric shutter door opening / closing device of a van type vehicle" (actual fairness 5
No. 2338). In the technique of this application, the shutter door can be opened and closed automatically by using a geared motor and a link chain, but the arrangement configuration of these opening and closing devices is considerably restricted. For example, there are problems that the link chain can be arranged only linearly or that a long output shaft is required.

(Problems to be solved by the invention) The present invention was devised in view of the above points, and uses an endless wire between a pulley and a capstan winch that directly connects a shutter door to a geared motor. Therefore, the left and right wires can be reciprocally driven, and the left and right wires can always be synchronized so that they can be opened and closed in a well-balanced manner.

(Solution by the Invention) A driving device including a geared motor mounted in the lower frame of the gate frame and having a capstan and a demagnetization type holding brake incorporated therein, and an endless wire wound around the capstan. The wire is stretched horizontally on both sides from the capstan in the lower frame of the portal frame, and rises in the side frame through pulleys pivotally supported on both sides of the lower frame, and is then installed in the portal frame. The inner side of the ceiling is stretched horizontally through the supported pulleys,
Furthermore, after passing through the pulley at the front of the ceiling, turn back and flip the side of the ceiling,
The wire is connected endlessly via a pulley supported on the upper part of the gate frame, and the wire is fixed to the uppermost panel of the plurality of panels constituting the shutter door with a fixing tool.

(Embodiment) Reference numeral 1 in FIG. 3 is a luggage box of a van type vehicle V, and 2 is a shutter door, which is opened and closed up and down to load and unload luggage. The shutter door 2 is composed of a plurality of panels 3 which are rotatably connected to each other at their upper and lower edges. Shutter door 2 is first
As shown in the drawing, a plurality of rollers 4 ... Are attached to the left and right edges of the roller at longitudinal intervals. When the shutter door 2 is opened / closed, the rollers 4 ... Roll in the guide rail 5 (FIG. 2) and are opened / closed.

6 is an opening / closing device for the shutter door 2 of the present invention. The opening / closing device 6 is mounted inside the gate frame 7 and the ceiling 8 that form the opening of the luggage box 1. That is, the capstan winch type driving device 9 is attached to the lower portion of the floor 10, the driving force transmitting wire 11 is attached to the side frame 12, and the ceiling 8 is attached to the main body side of the luggage box 13.・ It is stretched through.

Now, in more detail with reference to FIG. 1, the drive device 9 is configured as follows. That is, the wire 11 is wound one or more times around the capstan 15 attached to the output shaft side of the geared motor 14. Further, the drive device 9 has a built-in demagnetization type holding brake 16 inside. This is such that when the switch is turned off and the excitation of the geared motor 14 is released, a braking force acts on the shaft to stop and hold the rotation.

The wire 11 wound around the capstan 15 is divided into right and left, and the pulleys 13a and 13b that are stretched substantially horizontally inside the lower frame of the gate frame 7 and are axially mounted on the sides of the lower frame at both ends. After that, the inside of the side frame 12 is stretched vertically. Also, it is stretched in parallel to the inner surface of the ceiling 8 through pulleys 13c and 13d that are also mounted on the upper side frame.
Furthermore, it is inverted after passing through pulleys 13e and 13f pivotally supported on the ceiling,
It is joined endlessly via pulleys 13g and 13h mounted on the upper part of the gate frame 7 side. The positions of the pulleys 13e and 13f are pivoted further inside the ceiling than the edge of the uppermost panel 3a when the shutter door 2 is in the raised position where it is stored in the ceiling 8.

17 is a fastener, which allows the wire 11 to be attached to the top panel.
It sticks to 3a.

The shutter door 2 moves up and down in the open position and the closed position by rotating the drive device 9 in the forward and reverse directions, but it is needless to say that limit switches are attached to the open position and the closed position, respectively. It is designed to work with. When a switch capable of rotating in the normal and reverse directions (a remote control switch is also possible) is attached to an appropriate part of the packing box 1 and the shutter door 2 is opened and closed by the operation of the switch, but the switchgear cannot operate due to an electrical failure. A hole 19 into which the shaft of the handle 18 can be fitted is provided at an end of the output shaft of the drive device 9 or the brake shaft of the holding brake 16, and the handle 18 is inserted into this hole 19 to manually open the shutter door. 2 can be opened and closed. in this case,
It goes without saying that the brake 16 is manually released.

(Effect) Endless wire 11 and pulleys 13a to 1a for the shutter door opening and closing device
By adopting the drive device 9 consisting of 3h and a capstan winch, the arrangement configuration is simplified compared to the conventional link chain and the opening / closing device having the drive device by the output shaft and the geared motor, and the shutter door 2 Since the left-right synchronization when opening and closing is perfect, opening and closing is extremely smooth.

In particular, a drive unit consisting of a conventional geared motor, a link chain and a long output shaft is equipped with a geared motor under the floor, and a long output shaft is provided in the lower frame of the gate formwork. Was connected by a link chain to transmit power, but in the present application, a long output shaft is not used,
Further, since the wire which is more flexible than the link chain is used, the drive device can be installed at the optimum position in consideration of the operability of the manual opening / closing device in the lower frame of the gate frame.

By adopting a drive device with a capstan winch, the wires located on the left and right of the drive device can be synchronized regardless of slip in the capstan part,
It is possible to open and close the shutter door more smoothly.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of an automatic opening / closing device for an electric shutter door according to the present invention. FIG. 2 is a perspective view of the guide rail. FIG. 3 is a perspective view of a van-type vehicle equipped with a shutter door. FIG. 4 is a front view of the shutter door. In the figure; V ... Van type vehicle 1 ... Packing box 2 ... Shutter door 3 ... Panel, 3a ... Top panel 4 ... Roller, 5 ... Guide rail 6 ... Opening / closing device, 7 ... Gate form 8 …… Ceiling, 9 …… Driving device 10 …… Floor, 11 …… Wire 12 …… Side frame, 13a ～ 13h …… Pulley 14 …… Gard motor, 15 …… Capstan 16 …… Demagnetization release Type holding brake 17 …… Fastener, 18 …… Handle 19 …… Hole

Claims (1)

[Scope of utility model registration request] Claims: 1. A drive device (9) comprising a geared motor (14) mounted in a lower frame of a gate form body (7) and having a capstan (15) and a demagnetization type holding brake (16) built therein. , An endless wire (11) wrapped around the capstan (15)
The wire (11) is horizontally stretched on both sides of the capstan (15) in the lower frame of the portal frame (7), and the pulley (13a) is pivotally supported on both sides of the lower frame. , 13b) and rises in the side frame (12), and the pulleys (13c, 13d) pivotally supported on the upper part of the gate form body (7).
Then, the inner surface of the ceiling side is stretched horizontally through the pulleys, and then the pulleys (13e, 13f) in the front of the ceiling are folded back and turned over. The wire (11) is fixed to the uppermost panel (3a) of the plurality of panels (3) constituting the shutter door (2) by a fixing tool (17). Automatic opening / closing device for electric shutter doors in van type vehicles.