JPH0549966U - Fall prevention device for basement - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a fall prevention device for a basement, which can be stored so as not to get in the way when it is not in use, is convenient to use, and has improved safety. [Structure] The floor cutout at the entrance of the basement that is configured to enter and exit through the opening provided in the ceiling of the basement through the opening / closing hatch of the floor cutout formed on the floor of the aboveground building immediately above. Between the opening of the basement and the opening of the basement, there is provided a shaft to which one end of the mesh that is rotatable is fixed parallel to the floor, and the mesh can be wound and unwound.
It is characterized in that the doorway is closed by the rewound state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fall prevention device for a basement for preventing a fall from an entrance / exit of the basement into the basement.

[0002]

[Prior Art]

 Access to the basement is done by opening the floor hatch on the floor of the aboveground building and going up and down the stairs below the floor hatch. And, the basement is used with the floor hatch open. In these cases, for example, there is a risk that a small child will accidentally fall while an adult is in the basement. Therefore, as a preventive measure, it has been customary to install a guard or an accordion-type shutter in the hatch of the basement to block the doorway.

[0003]

[Problems to be solved by the device]

 By the way, in the conventional technology, when the above-mentioned guards and shutters are not used, for example, the guards are leaning against the wall of the basement, and the accordion type shutter is placed in the hatched state in a folded state. .. As such, these guards and shutters occupy space when they are not in use. In particular, the accordion type shutter occupies the area of the entrance and exit, which was an obstacle when loading or unloading items into or from the basement.

The present invention has been made in order to solve these problems, and can be stored so as not to be a hindrance when not in use, and it is easy to use and has improved safety in the basement. It is an object of the present invention to provide an anti-drop device for a vehicle.

[0005]

[Means for Solving the Problems]

 Means for achieving the above object will be described with reference to FIGS. 1 and 5 corresponding to an embodiment of the present invention.

The basement fall prevention device of the present invention has a floor hatch 10 of a floor cutout 14 formed on the floor of an above-ground building directly above an opening 11 provided in a ceiling 15 of the basement C. At the entrance / exit of the basement C, which is configured to come in and out through the floor, a rotatable shaft 5 is provided in parallel with the floor 12 between the floor cutout 14 and the opening 11 of the basement, and the shaft 5 has One end of the safety net 6 is fixed, the safety net 6 can be freely wound and unwound, and the safety net 6 is unwound to close the entrance.

[0007]

[Action]

 The embodiment will be described with reference to FIG. 2 which is a perspective view of a main part and FIG. 3 which is a side view thereof.

The safety net 6 has a drum 2a which is integral with the shaft 5 and a drum 2b which is provided via a spiral spring 3 so that the elastic force is taken up. Therefore, by pulling out the safety net 6 and engaging the pull tab 4 at the tip thereof in the extended state with the stopper 8 fixed to the frame 9b, the extended state is maintained against the elastic force. Further, when the pull tab 4 is released from the engaged state in the extended state, the safety net 6 is wound by the elastic force.

Further, when the safety net 6 is wound around the shaft 5, it does not get in the way.

[0010]

【Example】

 FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention, and FIGS. 2 to 4 are views for explaining the embodiment of the present invention. Embodiments of the present invention will be described below with reference to the drawings.

The basement entrance / exit connects the above-ground building to the basement by providing an opening 11 in the ceiling 9a, 9b of the basement and a floor cutout 14 in the floor 12 of the above-ground building immediately above. A doorway is formed. Further, the floor hatch 10 that closes the floor cutout portion 14 in the same plane is openable and closable, and is supported by the column 13 to maintain the open state.

The basement fall prevention device of the present invention is installed at the entrance of a basement having such a structure. First, the safety guard body 1 is fixed to the basement ceiling 9a at the peripheral edge of the opening 11. Further, as shown in FIG. 2, one end of a safety net 6 that closes the entrance and exit is fixed to the rotatable shaft 5 in the safety guard body 1, and a pull tab 4 is provided at the end of the other safety net 6. Has been. A handle 7 is attached to the central portion of the handle 4, and the handle 4 can be pulled while holding the handle 7. By pulling the pull tab 4 when in use, the safety net 6 which is in a wound state when not in use can be rewound.

The shaft 5 is integrated with the drum 2a and rotates with the rotation of the drum 2a. The drum 2a is connected to the drum 2b via a spiral spring, and the elastic net of the spiral spring allows the safety net 6 to be wound and unwound.

On the other hand, a plurality of fasteners 8 for fixing the pull tabs 4 are fixed to the ceiling 9b at a position facing the ceiling 9a to which the safety guard body 1 is attached. FIG. 4 shows a state in which the pull tab 4 is firmly held by the stopper 8.

Next, the operation of the basement fall prevention device of the present invention having the above configuration will be described. The safety net 6 has a drum 2a which is integral with the shaft 5 and a drum 2b which is provided via a spiral spring 3 so that the elastic force is taken up. Therefore, by pulling out the safety net 6 and engaging the pull tab 4 at the tip thereof in the extended state with the stopper 8 fixed to the frame 9b, the extended state is maintained against the elastic force. Further, when the pull tab 4 is released from the engaged state in the extended state, the safety net 6 is wound by the elastic force.

Further, when the safety net 6 is wound around the shaft 5, it does not get in the way. In use, when the handle 4 is held, the shaft 5 rotates, the safety net 6 rewinds at the same time, and the drum 2a, which is integral with the shaft 5, also rotates, so that the spiral spring 3 winds around the drum 2a. Will be returned. Then, as shown in FIG. 3, the rewound safety net 6 is firmly held by the stopper 8 fixed to the frame 9b. In this engaged state, the entrance / exit is closed by the safety net 6 and is prevented from falling from the floor.

When the safety net 6 is not in use, that is, when the safety net 6 is disengaged from the stopper metal 8, the spiral spring is wound around the drum 2b by its elastic force, so that the safety net 6 is wound up.

In the present embodiment, the mounting position of the safety guard main body 1 is a surface (ceiling 9a) perpendicular to the surface on which the floor hatch 10 is mounted, but the mounting position is not limited to this, and the opening 11 The surface is also good.

Further, the safety net may be a net that can be wound and has a small mesh so that a falling object does not pass through. Further, it goes without saying that the spring interposed between the drums is not limited to the spiral spring, and another spring may be used as long as it has the same function.

[0020]

[Effect of the device]

 As described above, according to the present invention, since the net is wound and unwound by the rotation of the shaft, it can be stored compactly when not in use, which is not a hindrance, and it can be used. It is possible to provide a basement fall prevention device that is convenient and has improved safety.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of an essential part of the embodiment of the present invention.

FIG. 3 is a side view of an essential part of the embodiment of the present invention.

FIG. 4 is a view showing a state in which the pull tab of the present invention is held.

FIG. 5 is a diagram for explaining an embodiment of the present invention.

[Explanation of symbols]

 1 ... Safety guard body 2a, 2b ... Drum 3 ... Spiral spring 4 ... Pull tab 5 ... Shaft 6 ... Safety net 8 ... Stopper 9a , 9b ・ ・ ・ ・ Ceiling 10 ・ ・ ・ ・ ・ ・ Floor hatch 11 ・ ・ ・ ・ Opening 12 ・ ・ ・ ・ Floor 14 ・ ・ ・ ・ Floor notch

Claims (1)

[Scope of utility model registration request] 1. An entrance / exit of a basement configured to enter / exit an opening provided in a ceiling of the basement through an opening / closing hatch of a floor cutout formed on the floor of the aboveground building directly above the opening. Between the floor cutout and the opening of the basement, a rotatable shaft is provided in parallel with the floor, and one end of a net that can be wound and unwound is fixed to the shaft. A fall prevention device for a basement, wherein the entrance is closed by rewinding a net-like material.