JPH0622788Y2 - Electric sliding door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a structure of an electric sliding door used for a gate or the like provided at an entrance of a garage.

[Prior Art] Conventionally, in the case of electrically opening and closing a gate, a rack pinion is provided in which a rack is provided so as to extend between both ends of the gate, and a pinion driven to rotate by a motor is engaged with the rack to drive the gate. There is a mechanism.

[Problems to be solved by the invention] However, in the above-mentioned conventional example, there is a problem that the opening and closing cannot be performed unless the level of the foundation work is accurately set.
Further, in the case of the rack and pinion mechanism, there is a problem that the rack and pinion is easily damaged due to aging, and there is a problem that the opening and closing noise is high.

In order to eliminate this problem, the present inventors have proposed an electric sliding door as shown in FIGS. 5 (a) and 5 (b). The caster 2 provided in the lower part of the sliding door 1 is rotatably arranged with respect to the guide rail 8, and the chain 3 is installed between both ends of the sliding door 1. The drive sprocket 5 is mounted on the drive shaft 17 protruding from the drive device A in which the motor is installed, and the drive sprocket 5 is meshed with the chain 3. Then, by driving the drive sprocket 5, the chain 3
Moves and the sliding door 1 is opened and closed. In such an electric sliding door, since the chain 3 is installed over the entire length of the sliding door 1, the chain case 15 'is attached to the sliding door 1 over the entire length so that the chain 3 is not exposed, and the chain 3 is stored.
However, since the chain case 15 'is a channel material having a U-shaped cross section, when viewed from the drive unit A side, the chain 3
Has a problem that it is completely visible and its appearance is poor, and since the upper surface of the chain case 15 'is a flat surface, rainwater and fallen leaves may accumulate, and children may get on it.

The present invention has been made in view of the above-mentioned points, and the purpose of the present invention is to open and close an electric motor with a simple mechanism and to prevent the chain from being visible on the outside. An object is to provide an electric sliding door that can be covered with a case and that does not collect rainwater or fallen leaves in the chain case.

[Means for Solving the Problems] To achieve the above object, the electric sliding door of the present invention is a sliding door
A chain 3 is installed across both ends of the drive sprocket 5 by rotating a drive sprocket 5 of a drive device A having a motor 4 as a drive source by meshing with the chain 3.
In which the chain 3 is moved by the rotational drive of the above to open and close the sliding door 1, the chain case 15 is divided into upper and lower parts.
Is attached to the sliding door 1, the chain 3 covers the chain 3 over the entire length, and the upper part of the upper half 15a of the chain case 15 which is divided into the upper and lower parts is inclined downward so that the upper half 15a is inclined downward as the distance from the sliding door 1 increases. The lower surface portion 2 of the lower half body 15b which covers the upper portions of the drive sprocket 5 and the chain 3 with 24 and is divided into the upper and lower parts of the chain case 15
5, the drive sprocket 5 and the lower part of the chain 3 are covered, and the falling edge 26 hangs downward from the tip of the inclined upper surface portion 24 of the upper half body 15a and the upper end of the lower surface portion 25 of the lower half body 15b. The rising edge 27 is made close to each other, and a gap is formed between the falling edge 26 and the rising edge 27 so that the drive shaft 17 of the drive sprocket 5 can be inserted therethrough.

[Operation] By driving the drive sprocket 5 with the motor 4, the chain 3 can be moved with respect to the drive sprocket 5 to open and close the sliding door 1. Further, the chain 3 can be covered by a vertically divided chain case 15 so as not to be visible, and the upper surface of the chain case 15 has an inclined upper surface 2
4 can prevent rainwater and fallen leaves from collecting.

[Embodiment] In the present embodiment, an embodiment of the gate 1a will be described as an example of the sliding door 1. A guide rail 8 is laid on the ground 7 where the gate 1a is attached so that it can be opened and closed. The caster 2 provided at the lower part of the gate 1a is rotatably mounted on the guide rail 8 and the gate 1a runs left and right. It's free. A pillar 9 is erected on one end side of the guide rail 8 so as to be a door stop when the gate 1a is closed. A column 10 is erected at a position lateral to the guide rail 8 at the other end of the guide rail 8 and an intermediate portion in the longitudinal direction of the guide rail 8, and the column 10 extends laterally to the upper end thereof. The bracket 11 is attached so that A pair of guide rollers 12 is attached to the bracket 11, and the pair of guide rollers 1
The upper end of the gate 1a is sandwiched between the two and the gate 1a is movably guided. Fixing plates 1 are attached to the lower part of the vertical frame 13 at both ends of the gate 1a
4 is attached, and the chain 3 is installed between the fixing plates 14 at both ends. A drive device A is arranged near the pillar 10 located in the middle of the guide rail 8 in the longitudinal direction so as to face the pillar 10 via the guide rail 8. A motor 4 and a speed reducer 23 are internally provided in the drive unit A, and the output of the motor 4 drives the speed reducer 23 via the transmission chain 16. The drive shaft 17, which is the output shaft of the speed reducer 23, projects to the outside and
A drive sprocket 5 is attached to the. The drive sprocket 5 is engaged with the chain 3. Tension sprockets 6 that idle are provided on both sides of the drive sprocket 5, and the tension sprockets 6 are meshed with the chain 3 so that the chain 3 is wound around the drive sprocket 5. Further, an electric lock stopper 18 is projected from the drive device A so that it can be locked by an electromagnetic device 19 when the gate 1a is closed. Further, the drive device A is provided with a control box 20, a radio control receiver 21, and a power supply device 22. Also above the gate
A chain case 15 is attached to 1a so as to extend between the fixing plates 14 at both ends, and the chain 3 is accommodated in the chain case 15 over the entire length. The chain case 15 is divided into upper and lower parts, and is composed of an upper half body 15a and a lower half body 15b. The upper half 15a includes a vertical piece 28, an inclined upper surface portion 24, and a rising edge 26, and the vertical piece 28 is a screw tool 29.
The drive sprocket 5 and the upper part of the chain 3 are covered with the inclined upper surface 24, and the falling edge 26 is brought close to the drive shaft 17 and the support shaft 30 of the tension sprocket 6. The lower half 15b is composed of a vertical piece 31, a lower surface portion 25, and a rising edge 27. The vertical piece 31 is fixed to the gate 1a with a screw tool 29, and the lower surface portion 25 holds the lower part of the drive sprocket 5 and the chain 3. It is covered and the rising edge 27 is brought close to the drive shaft 17 and the support shaft 30.
Further, a drainage hole 32 is formed in the lower surface portion 25 of the lower half body 15b of the chain case 15 so that rainwater that has entered the chain case 15 can be discharged.

Then, when the motor 4 is driven, the drive sprocket 5 is rotationally driven, the chain 3 which fits the drive sprocket 5 is driven by the drive sprocket 5, and a force is applied so that the gate 1a moves. When the motor 4 is driven in either forward or reverse rotation, the chain 3 is driven so as to move to the pillar 9 side, and in addition to the caster 2 rolling, it is driven in the direction of closing the gate 1a. As shown in the actual battle, the gate 1a is closed. Conversely, when the motor 4 is rotationally driven, the chain 3 is driven so as to move in the direction away from the column 9 and is opened as shown by the imaginary line in FIG. At this time, since the chain 3 is covered with the chain case 15, the chain 3 is hard to see from the outside. In addition, leaves and rainwater do not collect on the upper surface of the inclined upper surface portion 24 of the chain case 15 and smoothly fall downward, and children or the like cannot ride on the chain case 15 at the inclined upper surface portion 24.

In the above embodiment, the example of the gate 1a has been described as an example of the sliding door 1, but any other sliding door structure can be applied.

[Advantages of the Invention] As described above, the present invention has a chain spanning both ends of a sliding door, and a drive sprocket driven by rotation of a drive device using a motor as a drive source is engaged with the chain to drive rotation of the drive sprocket. Since the chain is moved to open and close the sliding door, it is possible to open and close the sliding door with a simple mechanism, and of course the vertically divided chain case is attached to the sliding door and the chain case covers the entire length of the chain. , The upper half of the upper half of the chain case is divided into upper and lower parts of the upper half of the chain case. The lower surface covers the lower part of the drive sprocket and the chain, and stands downward from the tip of the inclined upper surface of the upper half. The trailing edge and the rising edge that hangs above the tip of the lower surface of the lower half are brought close to each other, and a gap is formed between the falling edge and the rising edge to allow insertion of the drive shaft of the drive sprocket. In other words, the upper and lower halves of the chain case are divided into upper and lower parts so that the falling edge and rising edge can be close to each other and the chain can be covered so that it cannot be seen from the outside. The appearance can be improved, and since the upper surface of the chain case is an inclined upper surface, rainwater and fallen leaves do not collect on the upper surface of the chain case. You can't get on it.

[Brief description of drawings]

1 (a) is a plan view of an embodiment of the present invention, FIG. 1 (b) is a front view of the same, FIG. 1 (c) is a side view of the same, and FIG. 2 (a) is the same as above. FIG. 2 (b) is a side view of the drive unit, FIG. 2 (b) is a cross-sectional view of the same as above, FIG. 3 is a perspective view of the drive mechanism of the same as above, and FIG. 4 is an enlarged cross-sectional view showing a chain case portion of the same. a) is a front view of a conventional example, FIG. 5 (b) is a front view of a chain case part, A is a drive device, 1 is a sliding door, 3 is a chain, 4 is a motor, 5 is a drive sprocket, and 15 is Chain case, 15
a is an upper half body, 15b is a lower half body, 17 is a drive shaft, 24 is an inclined upper surface portion, 25 is a lower surface portion, 26 is a falling edge, and 27 is a rising edge.

Claims (1)

[Scope of utility model registration request] 1. A chain is installed across both ends of a sliding door, and a drive sprocket which is driven to rotate by a drive device having a motor as a drive source is engaged with the chain to move the chain by rotationally driving the drive sprocket. In an electric sliding door that opens and closes with a sliding door, the vertically divided chain case is attached to the sliding door, and the chain covers the chain for the entire length. The upper surface of the upper half is inclined by covering the upper part of the drive sprocket and the chain with the inclined upper surface and the lower surface of the lower half of the chain case that covers the lower part of the drive sprocket and the chain. The falling edge that hangs downward from the tip of the lower part and the rising edge that hangs above the tip of the lower half of the lower half Electric sliding door comprising forming a gap enough to insert the drive shaft of the drive sprocket between the falling edge and the rising edge causes close to each edge.