JPH0567756U - Stepping prevention tool - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a walk-out prevention device which is attached to a fastening bolt projecting above the floor of a building to prevent the occurrence of a walking accident due to the stepping of the fastening bolt. [Structure] This walk-in prevention tool 1 is used for the floor 5 of a building under construction.
A cap that is capped on a fastening bolt 6 that protrudes from the floor 5 to fasten a wall panel to the accommodation part 30 formed from the lid part 10 and the side part 20 and the foot of the worker when treading. And a shock absorbing means 40 for absorbing a shock received by the. The shock absorbing means 40 is composed of a coil spring and has an upper end 61 of the fastening bolt 6 housed in the housing portion 30.
And the lid 10. The side portion 20 is provided with a recognition means 21 for informing the operator of the mounting position of the punch-through prevention tool 1. The recognition means 21 is constituted by the side part 20 itself being made of plastic adapted to serve as a reflection part for reflecting light.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a step-through prevention device that prevents a worker from stepping on a fastening bolt that protrudes on the floor of a building during construction work so as to prevent injury, so that the fastening bolt can be crowned. ..

[0002]

[Prior Art]

 Conventionally, as shown in FIG. 6, in a prefabricated building by a panel construction method, a wall panel (not shown in the figure) is erected on a floor 5 of the building in order to stand it. The fastening bolt 6 was projected from the floor 5.

[0003]

[Problems to be solved by the device]

 However, there is a problem in that an operator may accidentally step on the fastening bolt 6 or stumble on the fastening bolt 6 and get injured.

The present invention has been made to solve the above-mentioned problems, and when a fastening bolt protruding above the floor of a building is capped, a footing accident occurs due to the stepping of the fastening bolt. It is an object of the present invention to provide a punch-through prevention tool that avoids the above.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the step-out prevention device of the present invention, a housing portion formed of a lid portion and a side portion for housing the upper half of the fastening bolt, and the housing portion is housed in the housing portion. The structure is provided with a shock absorbing means interposed between the fastening bolt and the lid part to absorb a shock received by the foot of the worker when stepping on. The shock absorbing means may be composed of a spring. Then, the punch-out preventing tool is attached to the upper half portion of the fastening bolt protruding above the floor in a state of being floated from the floor. Even if the worker accidentally steps on the step-through prevention tool that is attached to the wearing bolt, the upper end of the lid part is set so that the bottom of the operator's foot slips and the foot is quickly landed on the floor. It may be formed in a curved surface shape that bulges from the peripheral portion toward the central portion. In order to make the worker recognize the mounting position of the walk-out prevention tool and prevent the walk-out and stumbling in advance, the side portion may be provided with a recognition means capable of notifying the mounting position of the walk-out prevention tool. .. In order to make it easier to recognize the walkthrough preventive tool even at dusk or at night, the recognizing means may be configured by a reflecting portion that reflects light or a light emitting portion that emits light by itself.

[0006]

[Action]

 The step-out prevention device of the present invention is attached to the upper half of the fastening bolt protruding above the floor in a state of being floated from the floor, and the upper half of the fastening bolt formed of the lid portion and the side portion. And a shock absorbing means that is interposed between the fastening bolt housed in the housing and the lid and that absorbs a shock received by an operator's foot when stepping on. Therefore, even if an operator accidentally steps on the step-prevention tool that is capped on the stop-fastening bolt, the step-prevention tool disperses the shock at the time of stepping on it and the shock-absorbing means absorbs the impact. Is absorbed. Since the shock absorbing means is composed of a spring, the structure of the punch-out preventing tool is simplified, and the punch-out preventing tool is easily manufactured. Since the upper end of the lid is formed in a curved shape that swells from the peripheral edge toward the center, the worker prevents the punching-out prevention tool from being accidentally attached to the fastening bolt. Even if you step on, the stepped foot will slip due to the curved shape and will be quickly landed on the floor. Since the side portion is provided with a recognizing means capable of notifying the mounting position of the punch-out prevention tool, the mounting position of the punch-out prevention tool can be easily recognized. Since the recognizing means is composed of a reflecting portion that reflects light or a light emitting portion that emits light by itself, it is easy to recognize the step-through prevention tool even at dusk or at night.

[0007]

【Example】

 An embodiment of a walk-through prevention tool according to the present invention is shown in FIGS. 1 to 3 and described below. Among them, FIG. 1 is a partially enlarged vertical cross-sectional view of a state where a retaining bolt is covered with a walkout prevention tool, and FIG. 2 is an overall perspective view of a state where a retaining bolt is covered with a walkout prevention tool. FIG. 3 is an overall perspective view of the punch-out prevention tool.

As shown in FIGS. 1 and 2, the walk-through prevention tool 1 includes a wall panel (not shown in the figure) on the floor 5 of the building under construction in the prefab building by the panel construction method. A cap that is capped while being floated from the floor 5 to a fastening bolt 6 such as an anchor bolt that protrudes from the floor 5 for fastening, and is formed from a lid portion 10 and a tubular side portion 20. The storage unit 30 and the shock absorbing means 40 that absorbs the shock received by the foot of the worker when stepped on. Then, the upper half 60 of the fastening bolt 6 is accommodated in the accommodating portion 30, and the shock absorbing means 40 is interposed between the upper end 61 of the fastening bolt 6 and the lid 10. . Further, the side portion 20 is provided with a recognizing means 21 for informing an operator of a mounting position of the step-out prevention tool 1, that is, a position where the fastening bolt 6 is projected. The punching-out preventing tool 1 is removed when the wall panel is erected.

As shown in FIGS. 1 to 3, the lid portion 10 is made of a metal such as steel so as to withstand an impact when an operator steps on it. The upper end 11 of the lid 10 is formed in a curved surface shape that bulges upward from the peripheral edge toward the center, and the foot on which the step-out prevention tool is stepped on is quickly slid. Care is taken not only to land on the floor but also to prevent injury if the worker accidentally falls on the pedestrian prevention tool 1. Further, in order to disperse the impact when the step-out prevention tool 1 is stepped on, the size (area A) of the curved surface portion of the upper end 11 is smaller than the size (area B) of the cross-sectional shape of the fastening bolt 6. It is made big. For example, the area A may be at least about 2 times the area B, preferably about 2 to 4 times, and more preferably 4 times or more, and as the area A becomes larger than the area B, the safety is also increased. Increase.

As shown in FIGS. 1 to 3, the side portion 20 is connected to a connecting portion 12 provided at a lower end portion of the lid portion 10 by fitting such as adhesion or force fitting. , For example made of light-reflecting plastic (well-known, for example mounted on the tail of a bicycle as a reflector). Therefore, the side portion 20 itself is a reflection portion which constitutes the recognition means 21. Although not particularly limited, this reflection part is made yellow so as to stand out. An insertion portion 22 into which the fastening bolt 6 is inserted is opened at the lower end of the side portion 20. The inner diameter of this insertion portion 22 is slightly larger than the diameter of the fastening bolt 6 so that the step-preventing tool 1 can be stably attached to the fastening bolt 6 without wobbling. Has been

As shown in FIG. 1, the shock absorbing means 40 is composed of, for example, a coil spring so as to be able to receive the shock from above due to the stepping and contract. The upper end of the coil spring is locked to the lid 10 via a hook-shaped locking portion 13 provided on the lid 10, while the lower end is the upper end 61 of the fastening bolt 6. The contact plate 41 is in contact with the contact plate 41 via a hook-shaped locking portion 42 provided on the contact plate 41. The contact plate 41 is made of a metal such as steel so as to withstand a shock caused by stepping on it.

In FIGS. 1 and 2, reference numerals 50 and 51 respectively indicate the foundation of the building and a pedestal wheel mounted thereon, and reference numerals 52 and 53 respectively indicate the floor. 5 is a floor panel and a semi-base (or barrel) arranged outside the floor panel and forming a part of the floor 5, and reference numeral 54 is a bolt through hole for passing the fastening bolt 6.

According to the above-described embodiment, the upper end portion 11 of the lid portion 10 is formed into a curved surface shape that bulges upward as it goes from the peripheral portion toward the center portion, and the size thereof is larger than that of the fastening bolt 6. Since the shock absorbing means 40 is provided in addition to being made larger than the size of the cross-sectional shape, even if an operator accidentally steps on the step-out prevention tool 1 which is attached to the fastening bolt 6, Since the shock caused by stepping is absorbed and absorbed, it is possible to avoid a stepping accident in which the fastening bolt 6 is stepped on and the foot is injured. In addition, since the walk-in prevention tool 1 is provided with the recognition means 21, the operator can easily recognize the mounting position of the walk-in prevention tool 1, and therefore the step-fastening bolt 6 is accidentally stepped on. In addition, it is possible to prevent the occurrence of accidents such as a pedestrian accident such as stumbling on the fastening bolt 6 in advance. Since the recognizing means 21 is composed of a reflecting portion that reflects light, the worker can easily recognize the step-through prevention tool 1 even at dusk, etc. It is effective in preventing accidents when defective. Since the shock absorbing means 40 is composed of a coil spring, the structure of the punch-out prevention tool 1 is simplified and the punch-out prevention tool 1 can be easily manufactured.

In the above embodiment, the first floor of the building has been described, but it goes without saying that the same applies to the second and higher floors. In this case, the fastening bolts 6 are so-called body difference bolts for tightly connecting the wall panel erected on the floor of the floor with the wall panel below the floor to the floor.

Further, the punch-through prevention tool 1 is not limited to the one in the above-mentioned embodiment, and if the fastening bolt 6 cannot be stepped on even by depressing the fastening bolt 6 by crowning the fastening bolt 6, the shape and The material is not particularly limited. For example, as shown as a modified example in FIG. 4, the side portion 20 may be shaped like a shade. By doing this, safety is further improved.

Further, in the above-described embodiment, the punching-out preventing tool 1 is made by connecting the side portion 20 to the lid portion 10, but the lid portion 10 and the side portion 20 are integrally formed. It goes without saying that it is okay.

Furthermore, in the above-mentioned embodiment, the side portion 20 itself made of plastic adapted to reflect light is the reflection portion constituting the recognition means 21, but the invention is not limited to this. However, the recognizing means 21 may be configured by applying a paint of a conspicuous color to the side portion 20 (or the lid portion 10 and the side portion 20), or the recognizing means 21 may be used instead of the reflection type. The light emitting part formed by applying paint or fluorescent paint may emit light by itself, or the light emitting part made of a light emitting diode or a miniature light bulb is provided on the side part 20 and stored in the housing part 30. Alternatively, the light emitting section may be caused to emit light. Alternatively, the side portion 20 may be transparent, and the light emitting portion such as a miniature electric bulb stored in the storage portion 30 may be made to emit light by a battery or the like.

Further, the entire side part 20 does not need to be the recognition means 21 composed of the reflection part and the light emitting part, and if the operator can easily recognize the step-through prevention tool 1, for example, As shown as an example in FIG. 5, the recognition means 21 may be provided in a part of the side portion 20. In this case, the shape (pattern) of the recognition means 21 does not matter.

Further, in the above-mentioned embodiment, the shock absorbing means 40 is composed of the coil spring, but the invention is not limited to this, and it is possible to absorb the shock from above due to stepping. For example, it may be composed of a spring such as a leaf spring or a bamboo spring, or a sponge.

[0020]

[Effect of the device]

 According to the walk-through preventive tool of the present invention, the top of the fastening bolt protruding above the floor is attached to the upper half of the fastening bolt in a state of being floated from the floor, and the fastening bolt is formed of the lid portion and the side portion. An accommodating portion for accommodating the upper half of the upper part, and an impact absorbing means interposed between the fastening bolt accommodated in the accommodating portion and the lid portion for absorbing an impact received by a worker's foot when stepping on; Therefore, even if an operator accidentally steps on the step-prevention tool that is capped on the fastening bolt, the step-prevention tool disperses the impact at the time of stepping on it and Since the shock is absorbed, it is possible to avoid the accident of the stepping-out accident, in which the foot of the fastening bolt is stepped on and the foot is injured. Since the shock absorbing means is composed of a spring, the structure of the punch-out prevention tool is simplified and the punch-out prevention tool can be easily manufactured. Since the upper end of the lid is formed in a curved shape that swells from its peripheral edge toward the center, a worker prevents the punching-out prevention tool from accidentally wearing it on the fastening bolt. Even if you step on, the stepped foot will slip due to the curved shape and will land on the floor quickly, so it is possible to avoid the occurrence of a stepping accident in which the fastening bolt is stepped on and the foot is injured. .. Since the side portion is provided with a recognition means capable of notifying the mounting position of the step-out prevention tool, the worker can easily recognize the mounting position of the step-out prevention tool. It is possible to prevent the occurrence of accidents such as stepping on or trampling on the fastening bolts, which may be the cause of a stepping accident. Since the recognition means is composed of a reflecting portion that reflects light or a light emitting portion that emits light by itself, the worker can easily recognize the step-through prevention device even at dusk or at night. It is effective in preventing accidents caused by poor visibility at night or at night.

[Brief description of drawings]

FIG. 1 is a partially enlarged vertical cross-sectional view of a state where a walk-in prevention tool in this embodiment is capped on a fastening bolt.

FIG. 2 is an overall perspective view of a state in which a walk-in prevention tool is attached to a fastening bolt.

FIG. 3 is an overall perspective view of a walk-in prevention tool.

FIG. 4 is an overall perspective view showing a modification of the punch-out prevention tool.

FIG. 5 is an overall perspective view showing another modification of the punch-out prevention tool.

FIG. 6 is an overall perspective view of a conventional state in which a fastening bolt is projected on the floor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stepping-out prevention tool 5 Floor 6 Fastening bolt 10 Lid part 11 Upper end part 20 Side part 21 Recognition means 30 Storage part 40 Impact absorbing means 60 Upper half part

Claims (5)

[Scope of utility model registration request] 1. A fastening bolt for fastening a wall panel erected on a floor of a building, is attached to an upper half portion of the fastening bolt protruding above the floor in a state of being floated from the floor, and the fastening is provided. A step-out prevention device that avoids stepping with bolts,
The step-out prevention tool includes a housing portion that is formed of a lid portion and a side portion and that houses the upper half of the fastening bolt, and a space between the fastening bolt and the lid portion that is accommodated in the housing portion. And a shock absorbing means for absorbing a shock received by an operator's foot when treading on the foot. 2. The punch-out preventer according to claim 1, wherein the shock absorbing means is a spring. 3. The punch-out prevention tool according to claim 1, wherein an upper end portion of the lid portion is formed into a curved surface shape that swells from the peripheral portion toward the center portion. 4. The punch-out preventer according to claim 1, 2 or 3, wherein the side portion is provided with a recognizing means capable of informing a mounting position of the punch-out preventer. 5. The punching-out prevention tool according to claim 4, wherein the recognition means is composed of a reflecting portion that reflects light or a light emitting portion that emits light by itself.