JPH0524779Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a door device that can airtightly close openings such as entrances and exits of buildings and windows with a sliding door. The present invention relates to a rail swing type airtight door device that moves the door from a temporarily closed position on a running surface to a closed position in close contact with a partition wall.

[Conventional technology]

In a sliding door type door device, door shifting means for moving the door from a temporarily closed position to a closed position include one that moves a part of the rail in parallel diagonally downward toward the entrance (Japanese Patent Publication No. 10434/1983); There is a known device in which the door is moved in parallel by tilting rollers provided above and below the door with respect to a guide rail (Japanese Patent Application Laid-Open No. 181472/1983).

The present inventor has proposed a so-called rail-swinging door device in which, unlike the door shifting means described above, the rail swings back and forth to move the door to the closing position (patent application). Showa 62-310120
issue).

[The problem that the idea attempts to solve]

In the rail swing type door device, the movable rail is set at a temporarily closed position and a closed position at front and rear sides across a vertical plane. Therefore, when the center of gravity of the door passes through the vertical plane that passes through the center of swing of the rail and is located on either the front or back side when opening or closing, the movable rail will collapse toward the side where the center of gravity is located, and the posture of the door will suddenly change. . Therefore, if the user is not familiar with the functions of the door, there is a risk that foreign objects or limbs may be caught between the partition wall or floor and the door.

In addition, with rail-swinging door devices, shifting operations can be performed relatively easily by applying force to the door in a direction that intersects with the panel surface. You will need to move the door upwards until you can get over it. Therefore, when the weight of the door increases, the panel surface must be pushed and pulled while lifting the door a little, making it difficult to open and close the door.

This invention is intended to solve the above-mentioned problems, and aims to improve safety during operation by allowing the door to be shifted open and closed according to the user's clear intention to operate the door.

Another object of this invention is to obtain a sliding door-type airtight door device that allows the door to be opened and closed with a simple operation and has improved operability.

[Means to solve the problem]

In this invention, as shown in FIG. 1, a door shift mechanism 22 is provided between the partition wall 1 and the movable rail 6B, and this mechanism 22 directly swings the movable rail 6B to shift open and close the panel body 4. . The door shift mechanism 22 includes, for example, a bell crank-shaped rail operating body 25, a shift handle 24 mounted on the partition wall 1 side, and a transmission body 26 that transmits the operation of the shift handle 24 to the rail operating body 25.

[Effect]

Since the posture of the panel body 4 is changed by the door shift mechanism 22, the user can clearly distinguish between the sliding opening/closing operation of the panel body 4 along the rail 6 and the shifting opening/closing operation between the temporarily closed position and the closed position. It becomes possible to open and close the shift according to the clear intention of the operator.

In addition, since the door shift mechanism 22 directly operates the movable rail 6B to shift open and close the panel body 4, the user can open and close the shift by, for example, swinging the shift handle 24, and lifts the panel body 4 slightly. Compared to pushing and pulling, the shift can be opened and closed more easily and reliably.

〔Example〕

Figure 3 is a front view, where numeral 1 indicates the bulkhead of the building;
Reference numeral 2 denotes an opening provided in the partition wall 1 for access. In order to close this opening 2 airtightly, an airtight door device 3
is provided on the outside of the front surface of the opening 2.

The airtight door device 3 includes a rectangular panel body 4 that moves in the left and right directions to open and close the opening 2, and rollers 5 provided at two places on the left and right of the upper part of the panel body 4, which run along the outer surface of the partition wall 1. Rails 6 on the bulkhead 1 side to guide, and ABS resin or urethane on the bulkhead 1 side to prevent the lateral movement of the panel body 4 at the open position shown by the two-dot chain line in FIG. 3 and the temporarily closed position shown by the solid line in FIG. A stopper 7 made of resin or the like, and a rubber gasket 8 fixed to the panel body 4 in correspondence with the opening 2.
It consists of etc. Packing 8 is panel body 4
is fixed to the inner and lower surfaces of.

The panel body 4 has an outer shell made of a metal plate material, and the inside thereof is filled with a heat insulating material, a sound insulating material, etc. as required. Roller brackets 10 are provided on the upper left and right sides of the inner rear surface of the panel body 4, and each bracket 10 supports a set of two rollers 5, respectively. In FIG. 1, each roller 5 is connected to a rail 6.
It is a plastic molded product having a roller groove 11 that fits externally into the bracket 10, and is rotatably supported by a horizontal shaft 12 fixed to the bracket 10 via a bearing.

In FIG. 3, the rails 6 to be provided on the partition wall 1 side correspond to the two fixed rails 6A that account for most of the opening/closing stroke of the panel body 4, and the roller position when the panel body 4 is in the temporarily closed position. It consists of two movable rails 6B provided, and these are arranged in a straight line along the partition wall 1.

In FIG. 4, the movable rail 6B includes a rail bar 15 set longer than the maximum horizontal width of a pair of rollers 5, a swing shaft 16 provided parallel to the rail bar 15, and both members 15, 16. Both ends of the swing shaft 16 are swingably supported by a support frame 18 fixed to the partition wall 1 via bearings 19. A spring 14 is mounted between one side wall of the support frame 18 and the rail arm 17 so as to be fitted onto the swing shaft 16 for biasing the movable rail 6B to the temporarily closed position.

The movable rail 6B has two running guide positions (the state shown in FIG. 1) in which the rail rod 15 is in a temporarily closed position that allows the panel body 4 to open and close in the left and right directions in succession with the fixed rail 6A (the state shown in FIG. 2). The rail rod 15 can swing between a closed position in which it falls toward the partition wall 1 and tilts backward. In order to abut and regulate this swing limit, a pair of stoppers 2 are installed between the swing shaft 16 in the front and back.
0 are provided on the left and right sides of the base of the support frame 18.

In the temporarily closed position, a door shift mechanism 22 is provided between the partition wall 1 on the closed end side and the movable rail 6B in order to shift the panel body 4 forward and backward to open and close the opening 2.

In FIGS. 1 and 4, the door shift mechanism 22 includes a shift handle 24 supported on the partition wall 1 via a bracket 23 so as to be able to swing vertically, and a swing shaft 16 of a movable rail 6B on the closed end side. It is composed of a bell crank (rail operating body) 25, and a transmission body 26 made of a band plate that transmits the operation of the handle 24 to the bell crank 25. bell crank 2
One arm of 5 is connected to the transmission body 26 with a pin 27,
The other arm fits into the rail rod 15 of the movable rail 6B. The transmission body 26 and the shift handle 24 are also connected by a pin 28.

As shown in FIG. 1, when the panel body 4 is in the temporarily closed position, the shift handle 24 projects from the partition wall 1 in a substantially horizontal manner. When the shift handle 24 is swung upward from this state as shown by the two-dot chain line, the bell crank 25 is swung counterclockwise around the axis of the swing shaft 16, as shown in FIG. The movable rail 6B and the panel body 4 are caused to swing together.

In order to bring the lower side of the panel body 4 into close contact with the partition wall 1 in the temporarily closed position, a set of guide members 3 is provided.
0,31 are provided. In FIG. 5, one guide member 30 is fixed to the floor surface on the closed end side of the panel body 4, and includes a bracket 32 and a guide block 33 made of ABS resin, urethane resin, etc.
It consists of. The guide block 33 is formed to have an L-shaped cross section, and the inner surface of the arm that projects laterally is inclined inward to form a guide surface 34, which serves as a guide surface 34.
Forcibly guide the closed end side toward the partition wall 1.

The guide member 31 on the opening start end side of the panel body 4 is
It consists of a guide roller 36 supported rotatably around a vertical axis via a bracket 35 on the floor surface, and a cam piece 37 that abuts and is guided by this roller 36. is fixed. By closing the panel body 4, the cam piece 3
7 comes into contact with the guide roller 36, the cam piece 37
The panel body 4 is pushed toward the partition wall 1 according to the amount of protrusion, and in the temporarily closed position, the lower part of the panel body 4 is pressed and held against the partition wall 1 over the entire width.

The guide roller 36 also serves to prevent the panel body 4 from swinging outward about the rail 6 during the opening operation. Conversely, the panel body 4 also attempts to swing inward, but this rocking motion is restricted by a regulating roller 38 provided on the lower inner surface of the panel body 4.

In FIGS. 3 and 7, the upper outer surface of the panel body 4 over the entire length of the opening/closing movement area is covered with a cover frame 39 and a cover 40 fixed thereto.

In FIG. 3, reference numeral 41 is a handle provided on the outer front surface of the panel body 4 for opening and closing operations.

The airtight door device 3 configured as described above opens and closes the opening 2 by moving the panel body 4 in the left-right and lateral directions along the rail 6. In FIG. 3, when the panel body 4 is moved in the direction of arrow C (leftward), it comes to the temporarily closed position, and when it is moved in the direction of arrow D (rightward), it comes to the open position.

In the temporarily closed position, the panel body 4 directly faces the opening 2, and the left and right rollers 5, 5 ride on the movable rails 6B, 6B, respectively. Even in this state, the movable rail 6B continues to maintain the traveling guide attitude and maintains the temporarily closed position unless the user closes it.

When the shift handle 24 is swung upward from this temporarily closed position to move the movable rail 6B toward the partition wall 1, the panel body 4 gradually moves rearward from the running surface defined by the rail 6, and the rail Bar 15
At the same time as the center of the pivot shaft 16 moves rearward from the center of the swing shaft 16, the gasket 8 rapidly moves to the closing position shown in FIG.

When opening the panel body 4 from the closed position to the temporarily closed position, use the shift handle 2
4 downward to swing the movable rail 6B forward and stand it up.

Furthermore, since the panel body 4 can be easily opened especially by pushing it from the inside, for example, when the present invention is applied to the opening 2 which is the entrance/exit of a refrigerator, etc., there is no possibility that a person will be trapped inside the refrigerator. can be prevented.

[Another embodiment example]

Although the above-mentioned panel body 4 is suspended and supported by the upper rail 6, the rail 6 may be provided on the lower side.

The airtight door device 3 of the present invention may be provided on the inner surface side of the opening 2 including the panel body 4.

A plurality of panel bodies 4 may be supported by rails 6, and in this case, movable rails 6B are provided according to the number of rollers 5 on the panel body 4. In some cases, all of the rails 6 may be composed of only the movable rail 6B.

The door shift mechanism 22 may be provided between the movable rail 6B on the starting end side and the partition wall 1, and if all of the rails 6 are composed of the movable rail 6B as described above, the door shift mechanism 22 may be provided on the opening end side. You can also do that. The door shift mechanism 22 may be configured with a simple lever or link other than the bell crank 25 as the rail operating body 25, and is not limited to the structure described in the embodiment. The bell crank 25 may be swingably supported by a dedicated shaft other than the swing shaft 16.

To maintain the closed position, shift handle 24
A locking device can also be added between the bracket 23 and the bracket 23. Furthermore, if a boosting mechanism is added to the door shift mechanism 22, opening and closing of the panel body 4 becomes easy even when the weight of the panel body 4 is large.

[Effect of idea]

As explained above, in the airtight door device of the present invention, the door shift mechanism 22 is provided between the movable rail 6B and the partition wall 1, and the panel body 4 can be shifted open and closed by operating the door shift mechanism 22. After opening and closing the slide, the user can operate the door shift mechanism 22 provided separately from the panel body 4 to shift open and close the panel body 4 according to a clear operational intention. Therefore, it is possible to prevent accidents such as the panel body 4 being accidentally shifted open or closed while the hand is placed on the panel body 4 and a limb getting caught between the panel body 4 and the bulkhead 1, thereby improving safety during operation. It became possible.

In addition, since the door shift mechanism 22 directly operates the movable rail 6B to open and close the shift, the panel body 4 can be easily shifted by operating the shift handle 24 provided on the door shift mechanism 22. Shift opening/closing can be performed reliably with a simpler operation than in the case where the panel body 4 is directly shifted.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the door shift mechanism, Fig. 2 is a side view in a closed state, Fig. 3 is an overall front view of the airtight door device, and Fig. 4 is a movable door shift mechanism. FIG. 5 is a plan view of the guide member, FIG. 6 is a side view of the guide member, and FIG. 7 is a front view showing the relationship between the rail and the door shift mechanism.
It is a sectional view taken along the line AA in the figure. 1... Partition wall, 2... Opening, 3... Airtight door device, 4... Panel body, 6A... Fixed rail, 6B
...Movable rail, 22...Door shift mechanism, 24
...Shift handle, 25...Rail operating body (bell crank), 26...Transmission body.

Claims (1)

[Claims for Utility Model Registration] (1) A rail-swinging airtight system in which the panel body 4 is switched between a temporarily closed position and a closed position with a movable rail 6B that swings back and forth with respect to the opening 2 of the partition wall 1. In the door device, a door shift mechanism 2 that directly tilts and operates the movable rail 6B is provided between the partition wall 1 and the movable rail 6B.
2. A rail swing type airtight door device, characterized in that: 2 is provided. (2) The door shift mechanism 22 includes a rail operating body 25 connected to the movable rail 6B, a shift handle 24 attached to the bulkhead 1, and a shift handle 2.
Transmission body 2 that transmits the operation of 4 to the rail operating body 25
6. The rail swing type airtight door device according to claim 1, comprising: 6. (3) The rail swing type airtight door device according to claim 2, wherein the rail operating body 25 is a bell crank. (4) The rail swing type airtight door device according to claim 3, wherein the bell crank 25 is supported on the swing shaft 16 of the movable rail 6B.