JPH10273992A - Bottom frame structure of entrance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bottom frame structure of an entrance, having a good external appearance and which can prevent catching of a foot. SOLUTION: In a bottom frame structure of an entrance, a water stop member 2 having a longitudinally long length and provided in the bottom frame 1 so as to be vertically turnable, rises upright when the entrance is closed by a closing member 3 such as a door 3a or a sliding door, and it falls down below the bottom frame 1 when the closing member 3 is opened. A flexible push-up member 4 is attached to the lower side of the water stop member 2 so as to be vertically rotatable, and an actuating link 5 which abuts against the closing member 3 so as to be moved, for causing the member 4 to rise up when the closed member 3 is closed, and for causing the member 4 from falling down without abutting against the closing member 3 when the closing member 3 is opened, is movably attached to the bottom frame 1 in substantially parallel with a horizontal surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a lower frame portion of an entrance of a bathroom or the like, and more particularly, to a structure in which a water stop member rises and waterproofs when a closing member such as a door or a sliding door of the entrance is closed. It relates to the structure of the lower frame of the doorway.

[0002]

2. Description of the Related Art A door frame is provided at an opening serving as a doorway of a bathroom along the opening, and a closing member such as a door or a sliding door is mounted in the door frame so that the door can be opened and closed. A step is provided so that the height of the upper surface of the lower frame of the door frame is sufficiently higher than the floor surface of the bathroom so that water in the bathroom does not flow out of the bathroom.

[0003]

However, if a step is provided by increasing the height of the upper surface of the lower frame of the door frame, there is a risk that the foot may trip over the step, which is not preferable in terms of safety. is there. Accordingly, the present applicants have previously filed an application disclosed in Japanese Patent Application No. 8-285725 to ensure waterproofness even if the height of the upper surface of the lower portion of the door frame is reduced. This means that a water stop member long in the longitudinal direction of the lower frame is attached to the lower frame of the entrance so that it can be turned up and down freely, the water stop member is raised when the door is closed by the door, and the water stop member is opened when the door is opened. It is designed to fall on the lower frame. However, in the prior application, a drive device is provided on the upper surface of the water stop member in order to link the opening and closing of the door and the raising and lowering of the water stop member, and when the door is closed, the drive device is pushed by the door to raise the water stop member. As a result, a high and large driving device protrudes above the water stopping member, which causes a problem that the appearance is poor in appearance, and there is a risk that the driving device may be caught by a foot. there were.

[0004] The present invention has been made in view of the above description, and an object of the present invention is to provide a structure of a lower frame portion of an entrance which does not have a bad external appearance and does not have a possibility of catching a foot.

[0005]

In order to solve the above problems, the structure of the lower frame portion at the entrance according to the first aspect of the present invention is to provide a water stop member 2 long in the longitudinal direction of the lower frame 1 at the lower frame 1 of the entrance. It can be mounted up and down freely and the doorway is door 3a or sliding door 3.
b, when the closing member 3 such as the door 3a or the sliding door 3b is opened, the water stopping member 2 is erected on the lower frame 1 when the closing member 3 such as the door 3a or the sliding door 3b is opened. A flexible push-up member 4 is attached to the lower side of the cover 2 so as to be rotatable up and down. When the closing member 3 such as the door 3a or the sliding door 3b is closed, the push-up member 4 is moved by hitting the closing member 3 and raised. An operating link 5 is mounted on the lower frame 1 so as to be movable in a manner substantially parallel to a horizontal plane so that the push-up member 4 is turned down without rotating against the closing member 3 while the closing member 3 is open. It is characterized by the following. By performing the above, the closing member 3 such as the door 3a or the sliding door 3b is provided.
With the opening and closing of the opening, the operation link 5 can be moved, and the push-up member 4 can be turned up and down by the operation link 5 so that the water-stopping member 2 can be operated up and down by the push-up member 4. At this time, the water stopping member 2
Most of the push-up member 4 and the operation link 5 are hidden under the lower side, so that the appearance is not deteriorated and the foot is not caught. Further, even if the water stop member 2 is stepped on with the foot while the water stop member 2 is pushed up by the push up member 4, since the push up member 4 is flexible, the push up member together with the water stop member 2 is flexible. There is no possibility that the water stopping member 2 is damaged due to the fall of the water stopping member 4.

The operating link 5 is movable in a direction orthogonal to the longitudinal direction of the lower frame 1 so that when the closing member 3 such as the door 3a or the sliding door 3b is closed, the operating link 5 is connected to the lower frame 1 by the closing member 3. It is also preferable that the push-up member 4 is rotated by the operation link 5 by moving in a direction perpendicular to the direction, and the operation link 5 is movable in a direction parallel to the longitudinal direction of the lower frame 1. Door 3a or sliding door 3b
When the closing member 3 is closed, the operating link 5 is moved by the closing member 3 in a direction parallel to the longitudinal direction of the lower frame 1 so that the push-up member 4 is rotated by the operating link 5. It is also preferable to have a feature.

According to a fourth aspect of the present invention, there is provided a structure of a lower frame portion of an entrance, wherein a water stop member 2 which is long in the longitudinal direction of the lower frame 1 is mounted on a lower frame 1 of the entrance so as to be able to vertically move up and down. When the closing member 3 such as the door 3a or the sliding door 3b is closed, the water stopping member 2 is raised, and when the closing member 3 such as the door 3a or the sliding door 3b is opened, the water stopping member 2 is dropped on the lower frame 1. , A wire spring material is bent to form a torsion spring portion 4d on each side, and a torsion spring portion 4d between the torsion spring portions 4d on both sides.
The push-up operation part 4a integrated with the torsion spring parts 4 on both sides
a pressed part 4b integral with the torsion spring part 4d
Bar spring-like push-up member 4 having
Is disposed below the water stopping member 2 and the lifting member 4 is rotatable up and down around a shaft 11 inserted into a shaft support 4c in a pair of torsion springs 4d.
When the closing member 3 such as the door 3a or the sliding door 3b is closed, the push-up operating portion 4a moves toward the closing member 3 when the closing member 3 such as the door 3a or the sliding door 3b is closed. The push-up member 4 is pivoted so as to be raised, and the operating link 5 that causes the push-up operation section 4a to fall without hitting the closing member 3 with the closing member 3 opened is moved to the lower frame 1 substantially in parallel with the horizontal plane. It is characterized by being freely mounted. Due to the above, the operating link 5 is moved by opening and closing the closing member 3 such as the door 3a or the sliding door 3b, and the operating link 5 pushes the pressed portion 4b or releases the pressing to push up. The push-up operation part 4a of the member 4 can be turned up and down to operate the water stopping member 2 with the push-up operation part 4a. At this time, the push-up member 4 and most of the operation link 5 are not hidden under the water stop member 2, so that the appearance is not deteriorated and the foot is not caught. Also, when the water stop member 2 is pushed up by the push-up member 4 and the water stop member 2 is stepped on with a foot,
Due to the flexibility of the push-up member 4 and the resiliency of the torsion spring portion 4d, the push-up operation section 4a of the push-up member 4 does not fall down together with the water stop member 2 and the water stop member 2 is not damaged. Further, since the push-up member 4 has the torsion spring portions 4d on both sides, the number of turns of the spring is doubled as compared with the case where only one torsion spring portion is provided, so that the durability of the spring is increased and the durability of the device is improved. it can. Further, even if the water stop member 2 is stepped on in a raised state, the load on the spring is reduced by the two torsion spring portions 4d on both sides, so that the device is less likely to be crushed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, an example shown in FIGS. 1 to 3 will be described. An opening serving as an entrance is provided between the bathroom and the outside of the bathroom.
a is attached to open and close freely. The lower frame 1 of the door frame provided along the opening is made of metal such as aluminum, and the door 3a is positioned on the lower frame 1 with the door 3a closed. A water stop member 2 is disposed on the lower frame 1 at a position opposite to the bathroom side of the lower frame 1 so as to extend in the longitudinal direction of the lower frame 1. It is attached freely. That is, the lower frame 1 is provided with the pivot shaft 7 extending in the longitudinal direction, and the pivot 8 provided on the edge of the water stopping member 2 in the longitudinal direction is rotated by the pivot shaft 7. It is freely attached. A groove 9 is recessed between the water stopping member 2 of the lower frame 1 and the door 3a.

A flat casing 1 is provided between the lower surface of the water blocking member 2 and the upper surface of the lower frame 1 at the end of the lower frame 1 on the door end side.
The casing 10 is provided with a push-up member 4 for pushing up the water stop member 2.
The push-up member 4 is formed of a flexible material. In the present example, the push-up member 4 is formed of a leaf spring material, but may be formed of a wire spring material. The push-up member 4 includes a push-up operation portion 4a, a pressed portion 4b, and a shaft support 4c. The push-up member 4 is vertically mounted by rotatably mounting the shaft support 4c on a shaft 11 mounted on the casing 10. It is mounted rotatably. When the pressed portion 4b is pushed by the operation link 5, the push-up operation portion 4a rotates so as to rise, and the lower surface of the water-stop member 2 is pushed by the push-up operation portion 4a to raise the water-stop member 2. . When the pressed portion 4b is not pressed by the operation link 5, the push-up operation portion 4a falls substantially horizontally, and the water stopping member 2 also falls horizontally. The casing 1 has a lower frame 1
The working link 5 is slidably inserted through the insertion hole 12 in a direction perpendicular to the longitudinal direction of the actuator. One end of the operating link 5 is connected to the pressed portion 4b.
The other end of the operation link 5 is an actuated part 5b pushed by the door 3a. The operating link 5 is provided with a spring 13 for urging the operating portion 5a in a direction away from the pressed portion 4b. An actuated body 14 protruding upward is provided in the actuated portion 5b.

When the door 3a is opened, the operating portion 5a of the operating link 5 is pushed by the pressed portion 4b of the push-up member 4.
Is not pressed, and the push-up operation section 4a of the push-up member 4 is not pressed.
Are horizontally lying, and the water stopping member 2 is horizontally lying under its own weight. In a state where the door 3a is opened, the water-stopping member 2 falls down horizontally, so that the foot does not get caught on the water-stopping member 2 when passing. When the door 3a is closed as shown in FIG. 1 (a), and before the door 3a is completely closed,
As shown in FIG. 1B, the surface of the door 3 a hits an actuated body 14 of the actuated portion 5 b of the actuation link 5, the actuation link 5 slides against the spring 13, and the actuation portion 5 a of the actuation link 5 Pushes the pressed portion 4 b of the push-up member 4,
The water stop member 2 is raised by raising the push-up operation section 4a of FIG.
Raise to a predetermined height as shown in (c). When the water stop member 2 rises, it is possible to reliably stop water from leaking from the bathroom side. Even if the water stop member 2 is erected and the water stop member 2 is stepped on, the push-up member 4 does not bend and deform due to its own spring property, so that the water stop member 2 falls down horizontally and the water stop member 2 is not damaged. . When the door 3a is opened in the opposite manner to the above, the door 3a is moved from the actuated body 14 of the actuated portion 5b of the actuation link 5.
, The operation link 5 slides by the spring force of the spring 13, the operation part 5a separates from the pressed part 4b, the push-up operation part 4a of the push-up member 4 falls, and the water stopping member 2 falls horizontally. FIG. 4 shows the structure of raising and lowering the water stop member 2 in an easy-to-understand manner. FIG. 4 does not have the groove 9 in the lower frame 1.

FIGS. 5 and 6 show other examples. This is basically the same as the above example, except that the push-up member 4 is formed by a wire spring. When the push-up member 4 is formed of a wire spring material in this way, the push-up member 4 can be made more compact than when it is formed of a leaf spring material. In this case, a torsion spring portion 4d is provided between the push-up operation portion 4a and the pressed portion 4b so as to be integrated therewith, and the inside of the torsion spring portion 4d is a shaft support portion 4c, which is mounted on the casing 10. To the torsion spring part 4
and d is inserted through the shaft support 4c.

FIG. 7 shows another example. This is also basically the same as the example shown in FIGS. 1 to 3, except that the sliding door 3 b is used as the closing member 3 for the opening.
The sliding door 3b is slidably disposed on the lower frame 1, and an actuated body 14 of an actuated portion 5b of the operating link 5 is provided with an inclined surface 14a which is pushed by an end face of the sliding door 3b on the door tip side. . However, when the sliding door 3b is opened, the operating portion 5a of the operating link 5 does not press the pressed portion 4b of the push-up member 4, and
The push-up operation section 4a of the push-up member 4 is horizontally lying down, and the water stopping member 2 is also horizontally lying down by its own weight. Sliding door 3b
In a state where the water stop member 2 is opened, the water stop member 2 falls down horizontally, so that the foot does not catch on the water stop member 2 when passing. When the sliding door 3b is closed as shown in FIG. 7 (a), and before the sliding door 3b is completely closed, the end surface of the sliding door 3b becomes the inclined surface of the actuated body 14 of the operating link 5 as shown in FIG. 14a, the operating link 5 slides, and the operating portion 5a pushes the pressed portion 4b of the push-up member 4 upward, raises the push-up operating portion 4a of the push-up member 4, raises the water stop member 2, and raises the sliding door. In a state where 3b is completely closed, the water stop member 2 is raised to a predetermined height as shown in FIG. When the water stop member 2 rises, it is possible to reliably stop water from leaking from the bathroom side. Even if the water stop member 2 is erected and the water stop member 2 is stepped on, the push-up member 4 does not bend and deform due to its own spring property, so that the water stop member 2 falls down horizontally and the water stop member 2 is not damaged. . When the sliding door 3b is opened in the opposite manner to the above, the sliding door 3b separates from the operated body 14 of the operating link 5, the operating link 5 slides by the spring force of the spring 13, the operating section 5a separates from the pressed section 4b, and is pushed up. The push-up operation part 4a of the member 4 falls down, and the water stopping member 2 falls down horizontally.

Next, examples shown in FIGS. 8 to 10 will be described. This example is also basically the same as the examples shown in FIGS. 1 to 3, but the moving direction of the operation link 5 is the longitudinal direction of the lower frame 1. A flat casing 10 is mounted on the lower frame 1, and a push-up member 4 for pushing up the water stopper 2 is mounted on the casing 10 by a shaft 11 in the same manner as in the above-described example. An operating link 5 is arranged between the casing 10 and the lower frame 1 so as to be movable in a longitudinal direction of the lower frame 1 (a direction orthogonal to the longitudinal direction of the operating link 5). A moving guide 16 protrudes downward in front of the actuated link 5 on the side of the actuated portion 5b. The moving guide 16 is slidably fitted in a guide groove member 17, so that the actuating link 5 is guided. It moves in the longitudinal direction of the lower frame 1. The guide groove member 17 is housed in the groove 9 of the lower frame 1. The operating link 5 is provided with a spring 18 for urging the operating link 5 so that the operating portion 5a moves away from the pressed portion 4b. Actuated part 5b of actuation link 5
Is provided with an operated piece 19 as necessary. Sliding door 3b
The lower end is provided with a protruding piece 20 for pressing the actuated part 5b when the sliding door 3b is closed.

When the sliding door 3b is opened, the operating portion 5a of the operating link 5 is pressed by the pressed portion 4b of the push-up member 4.
Is not pressed, and the push-up operation section 4a of the push-up member 4 is not pressed.
Are horizontally lying down, and the water stopping member 2 is also horizontally lying down by its own weight. In a state where the sliding door 3b is opened, since the water stop member 2 is horizontally tilted, no foot is caught on the water stop member 2 when passing. When the sliding door 3b is closed as shown in FIG. 8A and the sliding door 3b is to be completely closed,
As shown in FIG. 8B, the end of the projecting piece 20 of the sliding door 3b comes into contact with the operated part 5b, and the operating link 5 slides in the longitudinal direction of the lower frame 1 against the spring 18 to operate. The portion 5a pushes the pressed portion 4b of the push-up member 4 upward, raises the push-up operation portion 4a of the push-up member 4, raises the water stop member 2, and moves the water stop member 2 in a state in which the sliding door 3b is completely closed. 8 (c)
And raise it to a predetermined height. When the water stop member 2 rises, it is possible to reliably stop water from leaking from the bathroom side. Even if the water stop member 2 is erected and the water stop member 2 is stepped on, the push-up member 4 does not bend and deform due to its own spring property, so that the water stop member 2 falls down horizontally and the water stop member 2 is not damaged. . When the sliding door 3b is opened reversely to the above, the protruding piece portion 20 of the sliding door 3b separates from the actuated portion 5b of the operating link 5,
The operating link 5 slides by the spring force of the spring 18 and the pressed portion 4
The actuating section 5a is separated from b, the push-up operation section 4a of the push-up member 4 falls, and the water blocking member 2 falls down horizontally.

Next, examples shown in FIGS. 11 to 14 will be described. In the case of this example, the push-up member 4 is formed by bending a spring wire in the same manner as in the examples of FIGS. 5 and 6, and has a torsion bar spring shape. Push-up member 4
Is provided with coil-shaped torsion spring portions 4d on both sides at a predetermined interval, and provided between the torsion spring portions 4d, a substantially U-shaped push-up operation portion 4a viewed from a plane and integrally with the torsion spring portions 4d on both sides. The pressed portion 4 is provided outside the torsion spring portions 4d on both sides.
b is provided integrally. A shaft 11 is provided in the casing 10, and the push-up member 4 is mounted to be rotatable up and down by inserting the shaft 11 into a shaft support 4c in a torsion spring 4d on both sides. A roller-shaped contact portion 22 is provided at the tip of the push-up operation portion 4 a of the push-up member 4. The contact portion 22 contacts the lower surface of the water blocking member 2 with the casing 10 mounted on the lower frame 1. is there. When the push-up operation section 4 a of the push-up member 4 is in a collapsed state, the roller-shaped contact portion 22 is set in the recess 26 on the upper surface of the casing 10. An operating link 5 is slidably mounted on the casing 10 in a direction orthogonal to the longitudinal direction of the lower frame 1. A distal end of the operating link 5 is branched into a forked shape. Operating portions 5a are provided, and each operating portion 5a is opposed to the pressed portion 4b. A spring 13 made of a coil spring is provided inside the casing 10, and the operating portion 5a biases the operating link 5 by the spring 13 in a direction away from the pressed portion 4b.
Guide holes 23 are provided on both side surfaces of the casing 10, and guide protrusions 24 are provided on both sides of the operation link 5. The guide protrusions 24 are slidably fitted into the guide holes 23 to operate. The link 5 is slidably mounted. An actuated body 14 serving as a trigger protrudes upward from an actuated portion 5b which is the base end of the actuation link 5, and a casing 10
The actuated body 14 is inserted through the through hole 25 of the extension piece 24 integrated with the movable member 14 so as to be movable in the sliding direction of the operation link 5.

When the door 3a is open, FIG.
As shown in FIG. 2, the operating portion 5a of the operating link 5 does not press the pressed portion 4b of the push-up member 4, and the push-up operating portion 4a of the push-up member 4 is horizontally tilted.
Is lying horizontally under its own weight. In a state where the door 3a is opened, the water-stopping member 2 falls down horizontally, so that the foot does not get caught on the water-stopping member 2 when passing. Door 3a
12 is closed from the state shown in FIG. 12, and before the door 3a is completely closed, the surface of the door 3a hits the actuated body 14 of the actuated portion 5b of the actuation link 5 as shown in FIG. The pair of operating portions 5a of the operating link 5 are slid against the spring 13 so that the pair of pressed portions 4
b, the push-up operation section 4a of the push-up member 4 is raised to raise the water stop member 2, and the water stop member 2 is raised to a predetermined height with the door 3a completely closed as shown in FIG. When the water stop member 2 rises, it is possible to reliably prevent water from leaking from the bathroom side. Water stop member 2
Even when the water stop member 2 is stepped on in the upright state, the push-up member 4 flexes and deforms due to the flexibility of the push-up member 4 itself and the resiliency of the torsion spring portion 4d, and the water-stop member 2 falls down horizontally to stop the water. The member 2 is not damaged. Door 3 reverse to above
a, the actuated body 1 of the actuated portion 5b of the actuation link 5
4 is separated from the door 3a, the operating link 5 is slid by the spring force of the spring 13, the operating portion 5a is separated from the pressed portion 4b, and the push-up operation portion 4a of the push-up member 4 is tilted down to stop the water stopping member 2.
Falls horizontally. Although the operation is performed as described above, since the push-up member 4 has the torsion spring portions 4d on both sides, the number of turns of the spring is twice as large as that of a single torsion spring portion 4d as shown in FIGS. , The durability of the spring is increased. Further, even if the water stop member 2 is stepped on with the water stop member 2 raised, the load applied to the torsion spring portion 4d is reduced, so that the device is unlikely to be crushed.

[0017]

According to the first aspect of the present invention, when a flexible push-up member is vertically rotatably mounted below a water stopper and a closing member such as a door or a sliding door is closed. An operating link is moved to the lower frame portion substantially parallel to the horizontal plane so as to move against the closing member to rotate the raising member so as to raise the lifting member, and to tilt the lifting member without hitting the closing member with the closing member opened. Because it is freely attached,
Opening and closing a closing member such as a door or sliding door moves the operating link, and the operating link can be used to pivot the push-up member up and down to operate the water-stopping member with the push-up member. The push-up member and most of the operating link are hidden on the lower side, so that the appearance does not deteriorate, and furthermore, the foot does not get caught and the water stop member is pushed up by the push-up member. Even if the water stop member is stepped on with a foot in this state, since the push-up member is flexible, the water-stop member is not broken due to the flexibility of the push-up member falling together with the water stop member. is there.

According to a fourth aspect of the present invention, a wire spring material is bent to form a torsion spring portion on each side, and a push-up operation portion integrated with the torsion spring portion is provided between both side torsion spring portions. A torsion bar spring-like push-up member having a pressed portion integral with the torsion spring portion outside the torsion spring portion is disposed below the water retaining member, and a shaft inserted through a shaft support portion in the pair of torsion spring portions. The push-up member is rotatable up and down at the center, the push-up operation portion of the push-up member is opposed to the lower surface of the water stop member, and when the closing member such as a door or a sliding door is closed, it moves against the closing member and is pressed on both sides. The lower frame is provided with an operating link for rotating the push-up member so as to raise the push-up operating portion by pressing the lower frame portion so that the push-up operating portion is tilted without hitting the closing member with the closing member opened. Since it is mounted so as to be movable substantially parallel to the surface, the pressed part of the push-up member is operated by the actuation link, the push-up operation part of the push-up member is turned up and down, and water is stopped by the push-up operation part of the push-up member Not only can the members be turned upside down, but also most of the push-up members and operating links are hidden under the water stop member, so that the appearance does not deteriorate and moreover, it is possible to catch the foot. Even if the water-stopping member is pushed up by the push-up operation section of the push-up member and the water-stopping member is stepped on with the foot, the flexibility of the push-up member and the spring property of the torsion spring portion together with the water-stopping member. Since the push-up operation section of the push-up member does not fall and the water stopping member is not damaged, and since the push-up member has torsion spring portions on both sides, one torsion spring portion is provided. Since the number of turns of the spring is twice as large as that of the spring, the durability of the spring is increased and the durability of the device can be improved. Since the load of the spring is reduced by the torsion spring portion, the device is hardly crushed.

[Brief description of the drawings]

FIGS. 1A, 1B, and 1C are perspective views illustrating an operation of an example of the present invention.

FIG. 2 is an exploded perspective view of a main part of the same.

FIG. 3 is a perspective view showing an assembled state of the same.

FIG. 4 is a cross-sectional view for explaining the operation of the above.

FIG. 5 is an exploded perspective view of a main part of another example of the above.

FIG. 6 is a perspective view of an assembled state of the above.

FIGS. 7A, 7B, and 7C are perspective views illustrating the operation of another example of the above.

8 (a), (b) and (c) are perspective views for explaining the operation of another example of the above.

FIG. 9 is an exploded perspective view of a main part of the above.

FIGS. 10A and 10B are perspective views for explaining the operation of the above.

11A and 11B show a unit having a push-up member and an operation link according to another example of the above, wherein FIG. 11A is a plan view, FIG. 11B is a front view, and FIG. 11C is a side view.

FIG. 12 is a cross-sectional view illustrating the operation of the above.

FIG. 13 is a cross-sectional view illustrating the operation of the above.

FIG. 14 is a cross-sectional view illustrating the operation of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower frame 2 Water stop member 3 Closing member 3a Door 3b Sliding door 4 Push-up member 4a Push-up operation part 4b Pressed part 4c Shaft support part 4d Torsion spring part 5 Operation link

Claims (4)

[Claims] 1. A water stopper which is long in the longitudinal direction of a lower frame is vertically mounted on a lower frame of an entrance so as to be vertically movable, and the water stopper is raised when the entrance is closed by a closing member such as a door or a sliding door. In the structure of the lower frame part of the doorway where the water stop member is dropped on the lower frame when the closing member such as the door or sliding door is opened,
A flexible push-up member is attached to the lower side of the water stop member so as to be rotatable up and down, and when a closing member such as a door or a sliding door is closed, it moves against the closing member and pivots to raise the push-up member. A lower frame of an entrance, wherein an operating link for causing the push-up member to fall down without hitting the closing member in a state where the closing member is opened is movably mounted on the lower frame portion substantially in parallel with a horizontal plane. Part structure. 2. An operating link is made movable in a direction orthogonal to the longitudinal direction of the lower frame, and when the closing member such as a door or a sliding door is closed, the operating link is moved by the closing member in a direction orthogonal to the lower frame. 2. The structure of a lower frame portion of an entrance according to claim 1, wherein the push-up member is rotated by an operation link. 3. The operating link is movable in a direction parallel to a longitudinal direction of the lower frame, and when the closing member such as a door or a sliding door is closed, the operating link is moved by the closing member in a direction parallel to the longitudinal direction of the lower frame. 2. The structure of a lower frame portion of an entrance as claimed in claim 1, wherein the push-up member is moved and rotated by an operation link. 4. A water stop member, which is long in the longitudinal direction of the lower frame, is attached to the lower frame of the doorway so as to be vertically movable, and when the doorway is closed by a closing member such as a door or a sliding door, the water stop member is erected. In the structure of the lower frame part of the doorway where the water stop member is dropped on the lower frame when the closing member such as the door or sliding door is opened,
The wire spring material is bent to form a torsion spring section on each side, a push-up operation section integrated with the torsion spring section between the torsion spring sections on both sides, and a torsion spring section integrated with the torsion spring section outside the torsion spring sections on both sides. A torsion bar spring-like push-up member having a pressing portion is arranged below the water retaining member, and the push-up member is rotatable up and down around a shaft inserted through a shaft support portion in a pair of torsion spring portions, When the closing member such as a door or a sliding door is closed, the push-up member moves to hit the closing member and push the pressed parts on both sides to rotate the pushing member to raise the pushing member. And an operation link for causing the push-up operation unit to fall down without hitting the closing member in a state where the closing member is opened, is mounted on the lower frame portion so as to be movable substantially in parallel with a horizontal plane. Structure of the lower frame portion of the entrance to the butterflies.