JPH028074Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric sliding door that automatically opens and closes the door of a vault or the like.

Conventionally, this type of sliding door has a door drive mechanism installed inside the door, so when assembling, disassembling, maintaining, or inspecting the drive mechanism, an operator must enter the refrigerator and close the door. No. Further, since the door drive mechanism is provided on the door side, it is necessary to connect an electric wiring cord to the moving door, making it complicated and difficult to install a power source.

The present invention aims to solve the above-mentioned drawbacks of the conventional ones, and by installing the door drive mechanism in the frame adjacent to the theft prevention wall that receives the sliding door when it is opened, the door drive mechanism can be easily operated. Assembly, disassembly, maintenance, and inspection can be easily performed from outside the refrigerator, and the wiring cord from the power supply can be easily and easily connected. In addition, even heavy sliding doors can be opened and closed easily with a switch.Furthermore, since the sliding door runs inside the theft prevention wall, the space in front of the theft prevention wall can be used effectively, and when the door is stopped, an electromagnetic brake is activated to provide the desired speed. An electric sliding door that has the advantage of stopping the door in a certain position and preventing it from opening erratically due to external force, and that it can also be opened and closed manually using a handle in the event of a power outage or electrical trouble. is intended to provide.

The gist of the present invention having the above-mentioned purpose is to provide a sliding door in which an opening is formed in a wall of a vault or the like and which is moved in a direction parallel to the opening to open and close the opening, and a rack is attached to the sliding door. , an intermittent electric drive device is provided in the frame fitted in the opening, an output shaft of the drive device and a drive shaft are linked by a bevel gear, and a handle is received at an outer end of the drive shaft. The invention is characterized in that the pinion is fixed to the inner end of the sliding door, and the pinion is engaged with the rack of the slide door.

An embodiment of the present invention will be described in detail below with reference to the drawings. In FIGS. 1 to 4, reference numeral 1 denotes a wall such as a vault W, and the wall 1 is provided with an opening 2 that serves as an entrance/exit to the vault. The opening 2
can be opened and closed by a sliding door 3 (sliding door), which moves in a direction parallel to the opening, and is located on the opposite side of the opening 2 (lower right side in Figure 2) when in the open state. It can be received inside the theft prevention wall 4.

Next, as shown in FIG. 5, the rollers 5 provided at the upper end of the sliding door 3 fit into the ceiling groove rails 6 of the wall 1, and the wheels 7 provided at the lower end fit into the wall 1, as shown in FIG. A guide roller 10 protruding from the bottom rail 1a is fitted into a groove rail 9 provided via an L-shaped mounting plate 8 which rotates the bottom rail 1a of the body 1 and is attached to the wheel frame 7a. There is. This allows the sliding door 3 to slide linearly and smoothly to open and close. On the other hand, sliding door 3
A door locking device 11 is provided in the center of the front of the door.
11a, 11b, and 11c indicate rotating/unlocking dials. Note that the door locking device 11 is not directly related to the present invention, so a detailed explanation will be omitted. Inside the cover 12 housing the door locking device 11,
The mounting part 14 is fixed to the sliding door 3 by screws 14a or by any method such as welding so that the rack 13, which has approximately the same length as the width of the sliding door 3, faces downward.

The traffic side of the theft prevention wall 4 located outside the warehouse (first
A frame 15 is attached to the frame 15 over the entire vertical length (left side in the figure), and inside the frame 15, bearings 16 are attached to bearings 16, 16 attached to the ends of the theft prevention wall 4.
A drive shaft 17 is rotatably supported via a and 16a. A pinion 18 is pivotally attached to the inner end 17a of the drive shaft 17 by a key 18a, and the pinion 18 is engaged with the rack 13 to feed the rack 13. Also, drive shaft 1
At the outer end of 7 is a handle receiving port 19 made of a square hole, etc.
A joint at the tip end of the handle 20 is fitted into the receiving opening 19 through the insertion hole 15a of the frame 15, so that the drive shaft 17 can be rotated manually. Further, a bevel gear 21a is pivotally attached to the drive shaft 17 by a key 21c. 17a is a member for preventing the pinion 18 from coming off.

The drive shaft 17 has a screw 22 attached to the end of the theft prevention wall 4.
a, or a frame 22 attached by a method such as welding
It is rotated by a drive device 23 installed above. The drive device 23 includes a motor 24 that rotates in forward and reverse directions.
, an electromagnetic brake 25 that applies the brake when the motor 24 is stopped, an electromagnetic clutch 26, and a reduction gear 27.
It meshes with 1a. The electromagnetic clutch 26
can perform the function of disconnecting the motor 24 and the speed reducer 27 in the event of a power outage or electrical trouble. In FIG. 1, reference numeral 28 indicates a switch button 28a for starting and stopping the drive device 23.
This is a switchbox housing 28a' and 28b.

Next, the operation of the present invention will be explained. Now, the first
As shown in the figure, in order to open the sliding door 3 from the closed state, press the start button 28a of the drive device 23 to drive the motor 24 in the normal rotation.
This rotation is transmitted from the electromagnetic clutch 26 to the reducer 27, and the rotational force reduced by the reducer 27 is transmitted to the drive shaft 17 via the bevel gears 21b and 21a, and from the drive shaft 17 via the pinion 18 to the rack 13. gear to the right. As a result, the slide door 3 is guided by the guide rollers 10 to move the groove rail 9, the wheels 7 rotate on the rail 1a, and the rollers 5 are guided by the ceiling groove rail 6 to open the opening to the right. It can be opened by sliding in a direction parallel to the . Eventually, when the sliding door 3 reaches the desired position, the stop button 28b of the drive device 23 is pressed to stop the rotation of the motor 24.

Next, in order to close the sliding door 3, the drive device 2
When the start button 28a' of No. 3 is pressed, the motor 24 rotates in reverse, and this rotational force is transmitted from the reducer 27 to the bevel gear 21.
b, 21a and the pinion 18 via the drive shaft 17.
The slide door 3 is closed by moving the rack 13 to the left through the slider. When the door is closed, the motor 24 can be stopped by pressing the stop button 28b. Note that when the sliding door 3 is closed, the electromagnetic brake 25 is activated to apply the brake to the motor 24, so that the sliding door 3 is not manually pushed open.

Furthermore, in the sliding door of the present invention, in an emergency such as a power outage or electrical trouble, the electromagnetic clutch 26 is activated and the motor 24 and the reducer 27 are separated.
Push the handle 20 into the receiving port 19 of the pinion 18 and rotate the drive shaft 17 directly with the handle 20.
The slide door 3 can be opened and closed by tooth-feeding the rack 13.

As explained above, according to the present invention, the door drive mechanism is installed on the traffic side of the anti-theft wall that receives the sliding door when it is opened, making it easy to assemble, disassemble, maintain, and inspect the door drive mechanism from outside the refrigerator. Not only that, but also the wiring cord from the power supply can be easily and easily connected. In addition, even heavy sliding doors can be easily opened and closed with a switch, and since the sliding door runs inside the theft prevention wall, the space in front of the theft prevention wall can be used effectively. Furthermore, since the sliding door of the present invention applies an electric brake when the door is stopped, it will not open due to external force. Moreover, in the event of a power outage or electrical trouble, the sliding door can be opened and closed manually using the handle.

[Brief explanation of the drawing]

Fig. 1 is a front view of an electric sliding door showing an embodiment of the present invention, Fig. 2 is a partially cutaway plan view,
Figure 3 is an enlarged sectional view taken along the - line in Figure 1, Figure 4 is a flat sectional view taken along the same line, and Figure 5 is a flat sectional view taken along the same line -
The line enlarged sectional view, FIG. 6 is also a -line enlarged sectional view. 1... Wall, 2... Opening, 3... Sliding door, 4... Anti-theft wall, 5... Roller, 7... Wheel, 1
3... Rack, 15... Frame, 17... Drive shaft,
18... Pinion, 19... Intake port, 20... Handle, 21a, 21b... Bevel gear, 23... Drive device, 24... Motor, 25... Electromagnetic brake, 26... Electromagnetic clutch, 27... Decelerator.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a sliding door in which an opening is formed in the wall of a vault or the like and the opening is opened and closed by moving in a direction parallel to the opening, a rack is attached to the sliding door, An intermittent electric drive device is provided in the frame fitted into the opening, the output shaft of the drive device and the drive shaft are linked by a bevel gear, and a handle receiving port is provided at the outer end of the drive shaft. What is claimed is: 1. An electric sliding door characterized in that a pinion is fixed to the inner end of the sliding door, and the pinion is engaged with the rack of the sliding door. 2. A request for registration of a utility model characterized in that the drive device consists of a motor, an electromagnetic brake that applies a brake when the motor stops, and an electromagnetic clutch that disconnects the motor and reducer in the event of a power outage or electrical failure. Electric sliding door described in scope 1.