JPH10238240A - Device for assisting rise-up of water-tight door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease a manipulating force required for turn-up operation of a manually operated water-tight door. SOLUTION: A water-tight door 20 is urged in a turn-up direction by springs 11, 11,..., and a stationary bracket 44 is coupled to the distal end of the water- tight door 20 by means of urging members 12, 12 incorporating a damper function. The urging members 12, 12 produce an urging force in a direction of extension, and urge the turn-up direction in cooperation with the springs 11, 11,... in order to reduce the virtual weight of the door 20, sufficiently as necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof door stand-up assisting device capable of smoothly standing up and down a waterproof door in the event of a flood.

[0002]

2. Description of the Related Art In buildings and entrances of parking lots, etc.,
In order to prevent inundation in the event of a flood, a flip-type waterproof door device may be installed.

In a conventional waterproof door device, a waterproof door that rises and falls through a hinge is disposed at an entrance of a building or the like, and a door frame is erected on the hinge side of the waterproof door. So, the waterproof door,
By standing up toward the door frame, the doorway between the door frames can be shut off in a watertight manner. In addition, the door can be opened by lowering the standing waterproof door to the same level as the floor surface. It should be noted that the waterproof door is not limited to an electric operation type that is raised and lowered via a driving mechanism such as an electric jack and a hydraulic cylinder, and a manual operation type that is raised and lowered by manual operation. This is because a manually operated waterproof door does not require a complicated driving mechanism, and can reliably exhibit predetermined performance even during a power failure.

[0004]

According to the prior art, the manually operated waterproof door tends to require an excessively large operating force at the start of the standing operation due to the weight of the waterproof door. There was a problem that the practicability was poor and the applicable range was narrow.

Accordingly, an object of the present invention is to provide a spring that urges a waterproof door in an upright direction in view of the problems of the related art.
An object of the present invention is to provide a waterproof door stand-up assisting device capable of reducing an operating force at the time of a stand-up operation by providing a biasing member having a damper function and greatly expanding an applicable range.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a construction of the present invention is to provide a spring for urging an upright type waterproof door having a hinge in an upright direction, a fixed bracket and a tip end of the waterproof door. And a biasing member with a damper function for connecting the two.

The spring may be a torsion spring for urging the waterproof door via a roller, and a plurality of sets may be arranged in the arrangement direction of the hinge of the waterproof door.

The urging member can be connected to the waterproof door through a long hole formed in the front-rear direction of the waterproof door.

[0009]

According to the structure of the present invention, the biasing member is
Since it is connected to the tip of the waterproof door that is biased in the upright direction by the spring, the biasing force acts in the direction to push up the waterproof door, and the operating force required to raise the waterproof door together with the spring is necessary and sufficient. Can be smaller. In addition, since the urging member has a damper function, the expansion / contraction speed is limited, and there is no possibility that the rising speed and the falling speed of the waterproof door become excessive. The biasing member with a damper function here is a biasing element made of a spring or a high-pressure sealed gas,
It refers to a combination of a damper element that limits the moving speed of the piston by utilizing the fluid resistance of oil or gas, or a single body or a separate body.

[0010] The torsion spring with a roller can smoothly move the contact position with respect to the waterproof door via the roller even when using a special type of hinge that moves the waterproof door back and forth when it falls. The waterproof door can be continuously urged over a large angle range from the start of standing.

If a plurality of sets of springs are arranged in the direction in which the hinges are arranged, the springs disperse in the longitudinal direction of the waterproof door to exert an urging force, so that no excessive force is applied to the hinges, and Can be erected smoothly.

If the urging member is connected to the waterproof door via the long hole, the urging member can be separated from the waterproof door before the standing of the waterproof door is completed, and then the waterproof door is turned toward the door frame. It can be moved lightly and easily and correctly adhered to the door frame.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

The upright assisting device for the waterproof door includes springs 11 for urging the waterproof door 20 in the upright direction, and an urging member 12 having a damper function for connecting the fixing bracket 44 and the front end of the waterproof door 20. , 12 (FIGS. 1 and 2).

The waterproof door 20 is a combination of a door plate 21, a decorative material 22 attached to the surface of the door plate 21, and a frame-shaped reinforcing frame 23 attached to the back surface of the door plate 21, and has a rectangular plate shape. Is formed. The waterproof door 20 includes a hinge 30,
30 are mounted on the upper surface of the case 40 so as to be capable of turning over.

The case 40 is constructed by embedding a box-shaped base frame 41 having an open top at the floor FL of the passage, and has a door frame 45 with a packing 45a on the front side of the case 40. It is erected in. An edge member 43 is attached to the front end of the base frame 41 via a bracket 43a. Further, a reinforcing member 42 is attached to a rear portion of the base frame 41, and a supporting member 41c that supports the tip of the waterproof door 20 when the portable device 20 is lying down is attached inward.

On the front surface of the case 40, a packing 41a projects inward through a packing storage rail 41a1. The packing 41a has door frames 45, 4 at both ends.
By being continuous with the packings 45a, 45a of No. 5,
It is formed in a U-shape with an open top.

Each hinge 30 is connected to the reinforcing plate 2 on the waterproof door 20 side.
4, movable hinges 31, 31, and a reinforcing plate 41b
Hinge 32 erected at the front of the case 40 via the
And links 33, 33 for connecting the movable hinges 31, 31 and the fixed hinge 32 so as to be relatively rotatable, as main members (FIGS. 1, 3). The movable hinges 31, 31, and the links 33, 33 are disposed on both sides of the fixed hinge 32, respectively.

The fixed hinge 32 is formed with a hook-shaped guide hole 32a which is bent obliquely upward from the front part toward the upper rear part and is turned back forward. The distal ends of the movable hinges 31, 31 are connected via a hinge pin 31a having a roller 31b, and the roller 31b can roll along a guide hole 32a. Also, both ends of each link 33 are connected via connecting pins 33a and 33b,
Each is rotatably connected to the base of the movable hinge 31 and the lower part of the front of the fixed hinge 32. Therefore, the waterproof door 20 stands vertically from the falling state (solid line in FIG. 2) parallel to the floor surface FL via the hinges 30, 30,..., And the door frames 45, 45 via the packings 41a, 45a, 45a. Can be turned back and forth between the upright state (two-dot chain line in the same figure).

At the start of the standing operation of the waterproof door 20 (solid line in FIG. 3 and the direction of arrow K1 in FIG. 3), the movable hinges 31 and 31 move together with the waterproof door 20 around the connecting pin 33a. As the hinge pin 31a and the roller 31b rotate rearward along the guide hole 32a, the links 33, 33 swing back (in the direction of the arrow K2 in the figure, and the two-dot chain line in the figure) to move the movable hinge 31. , 31 allows the waterproof door 20 to be temporarily retracted.
However, the guide hole 32a extends rearward longer than the turning locus of the hinge pin 31a about the connection pin 33a. Also, when the waterproof door 20 stands almost vertically, the hinge pin 31a and the roller 31b move forward along the upper portion of the guide hole 32a, and the links 33, 33 swing forward, so that the waterproof door 20 translates forward. Thus, the door frames 45 can be brought into close contact with each other.

The springs 11, 11,... Are torsion springs (FIGS. 1, 4).
A plurality of sets are arranged in the arrangement direction of 30. Spring 1
1, 11,... Are flanges 11a1, 11
a1 is attached to a fixed drum 11a, and the fixed drum 11a is connected to a reinforcing plate 4 via a bracket (not shown).
1b. The outer ends of the springs 11, 11 are connected to the reinforcing plate 41b via a common pressing member 11b.
It is fixed to.

One inner end of each of the springs 11 is bent at a right angle to become a free end (FIGS. 4 and 5), and is connected via a connecting bracket 13. The springs 11, 11
Pins 11c, 11c are respectively attached to the tips of the brackets, and the connection bracket 13 is prevented from coming off via the pins 11c, 11c. The connection bracket 13 is provided with rollers 14, 14 at the ends of the legs 13a, 13a.

The rollers 14, 14,... Correspond to the left and right reinforcing frames 23, 23 of the waterproof door 20 for each pair. Therefore, the springs 11, 11,...
, It is possible to urge the waterproof door 20 in the lying state in the upright direction (solid line in FIG. 4). The springs 11, 11 ...
Can continue to urge the waterproof door 20 until the waterproof door 20 reaches the upright state (two-dot chain line in the figure).

Each of the urging members 12, 12 is constituted by slidably inserting a rod 12b through a piston (not shown) into a cylinder tube 12a (FIG. 2). A quantity of high pressure gas and oil are enclosed. The urging member 12 has a damper function of urging the rod 12b in the extending direction by the enclosed high-pressure gas, and restricting the movement speed of the piston by the fluid resistance of the oil, and restricting the expansion and contraction speed of the rod 12b. . The biasing member 12 may be of a type in which a spring is incorporated in the cylinder tube 12a instead of filling high-pressure gas.

The rod 12b of each biasing member 12 is rotatably connected to a fixed bracket 44 disposed on the hinge 30 side of the case 40 via a connector 12b1. The cylinder tube 12a of the urging member 12 is engaged with the long holes 25a, 25a of the bracket 25 attached to the tip of the waterproof door 20 via the connecting pin 12a1. The bracket 25 is formed in a channel shape (FIGS. 1 and 2), and the long holes 25 a and 25 a are formed on both sides of the bracket 25 in the front-rear direction of the waterproof door 20.
That is, the urging member 12 includes the connecting pin 12a1, the long hole 2
5a, 25a, the fixing bracket 44 and the waterproof door 20
And the front end side of the However, fixed bracket 4
Reference numeral 4 stands upright on the reinforcing plate 41b.
5 is mounted on the waterproof door 20 via the reinforcing plate 24.

Each of the urging members 12 is shortened to the shortest when the waterproof door 20 is in the lying state (solid line in FIG. 2). Therefore, the urging member 12 at this time generates an urging force F in the direction of the cylinder tube 12a via the rod 12b (FIG. 3). And the urging force F
Can be urged rearward by the horizontal component F2.

That is, the falling waterproof door 20 is urged in the rising direction by the springs 11, 11,..., And the urging members 12, 12, so that the apparent weight at the distal end can be sufficiently reduced. Therefore, it is possible to easily start the erecting operation by pulling the distal end portion upward by a manual operation (in the direction of arrow K1 in the figure). Also, the waterproof door 20
Are backwardly urged by the horizontal component force F2 of the urging members 12, 12, so that they can be temporarily and smoothly retracted via the hinges 30, 30,. Two-dot chain line). Further, the urging members 12, 1
2 extends as the waterproof door 20 rises, and the built-in damper function can limit the rising speed of the waterproof door 20 to a safe speed.

Each urging member 12 extends to its full stroke when the waterproof door 20 stands up to a predetermined angle (solid line in FIG. 6). Therefore, after that, when the waterproof door 20 is manually shifted to the upright state (a two-dot chain line in the figure), the connecting pin 12a1 of each biasing member 12
The urging member 12 can be separated from the waterproof door 20 by relatively moving toward the hinge 30 along the lines a and 25a. That is, the waterproof door 20 can be advanced toward the door frames 45, 45 via the hinges 30, 30, irrespective of the urging members 12, 12, and can be brought into close contact with the door frames 45, 45. In addition,
The connecting pin 12a1 does not come into contact with the front ends of the long holes 25a, 25a even when the waterproof door 20 is in the upright state in this manner, and the upright waterproof door 20 is locked via a lock mechanism (not shown). Shall be.

When the waterproof door 20 in the upright state is turned over, the lock mechanism (not shown) is removed, and the waterproof door 20 is moved to the door frame 4.
A force is applied in the direction of pulling away from 5, 45. At this time, the waterproof door 20 can be moved rearward by an extremely small force until the connecting pin 12a1 of each urging member 12 contacts the rear end of the long holes 25a, 25a (the two-dot chain line in FIG. 6). From the solid line in the figure). The springs 11, 11,...
Is large, the urging force on the waterproof door 20 is extremely small, and the urging members 12, 12 do not exert any force on the waterproof door 20.

Subsequently, when a force is applied so that the waterproof door 20 is further lowered, the waterproof door 20 is connected to the connecting pin 12a1.
, 12a1 and fall down while compressing the urging members 12, 12, and finally return to the original lying state parallel to the floor surface FL. At this time, the urging members 12, 1
2 restricts the falling speed of the waterproof door 20 to a safe speed by a damper function.

.., A biasing member 12,
When the rising angle of the waterproof door 20 is small at the beginning of the rising operation of the waterproof door 20 or at the end of the falling operation and the rising angle of the waterproof door 20 is small, the urging force of the waterproof door 20 due to its own weight is generated. Shall be slightly greater than the force. Therefore, it is assumed that the waterproof door 20 is completely returned to the falling state by, for example, applying the weight of the operator to the upper surface, and is locked in the falling state via a lock mechanism (not shown). In addition, since the waterproof door 20 at this time automatically rises from the floor FL by removing the lock mechanism, the standing operation can be started as it is. However, the urging force in the rising direction by the springs 11, 11,... And the urging members 12, 12 can be set smaller than the force in the falling direction due to the weight of the waterproof door 20.
In this case, the erecting operation may be started by using an appropriate hook that raises the tip.

In the above description, the springs 11, 11,.
The type and the number of the waterproof doors 20 can be arbitrarily determined as long as the waterproof door 20 in the falling state can be urged in the upright direction. The same applies to the hinges 30, 30,. The hinge 30 is connected to the waterproof door 2 via a hinge pin 31a.
0 movable hinge 31, fixed hinge 32 on case 40 side
Are rotatably connected to each other, and the guide hole 32a and the link 3
It is good also as a general form which does not have 3,33.

[0033]

As described above, according to the present invention, by providing a spring for urging the waterproof door in the upright direction and an urging member having a damper function, the urging member can be used to reduce the waterproof door. When standing up, the apparent weight of the waterproof door together with the spring can be reduced as much as necessary, so even for large waterproof doors, the operating force required when standing up is reduced, and the manually operated waterproof door is used. In addition to greatly expanding the applicable range, the urging member with the damper function can limit the rising speed and the falling speed of the waterproof door, and easily realize a sufficiently safe lifting operation. There is an excellent effect that can be.

[Brief description of the drawings]

FIG. 1 is a plan view of the entire configuration.

FIG. 2 is an explanatory cross-sectional view taken along line XX of FIG. 1;

FIG. 3 is an explanatory diagram of an operation (1).

FIG. 4 is an explanatory cross-sectional view taken along line YY of FIG. 1;

FIG. 5 is an enlarged perspective view of a main part of FIG. 4;

FIG. 6 is an operation explanatory view (2).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Spring 12 ... Biasing member 14 ... Roller 20 ... Waterproof door 25a ... Long hole 30 ... Hinge 44 ... Fixed bracket

Claims (4)

[Claims] 1. A waterproof door comprising: a spring for biasing a flip-type waterproof door having a hinge in an upright direction; and a biasing member having a damper function for connecting a fixed bracket to a distal end side of the waterproof door. Standing assist device. 2. The device according to claim 1, wherein the spring is a torsion spring that urges the waterproof door via a roller. 3. The device according to claim 1, wherein a plurality of sets of the springs are arranged in a direction in which hinges of the waterproof door are arranged. 4. The upright waterproof door according to claim 1, wherein the urging member is connected to the waterproof door through a long hole formed in a front-rear direction of the waterproof door. Auxiliary equipment.