JP2022164252A - Fulcrum fixture and mounting method of fulcrum fixture - Google Patents

Abstract

To provide a fulcrum that can connect a fall arrest device without damaging a building frame where equipment such as water heaters are installed, and to make it possible to safely carry out work such as maintenance and replacement of the relevant equipment.SOLUTION: A fulcrum fixture 10 includes a fulcrum 20 to which a fall arrest device can be connected, a lower fixture 30 with the fulcrum 20, including a lower first mounting portion 31 fixed to a frame wall surface 16 by using an existing stud bolt 22 (lower fixing member) for fixing a mounting portion 21 (lower portion) of a device 18 to a building frame wall surface 16 and a lower second mounting portion 32 to which the mounting portion 21 (lower portion) of the device 18 is fixed, and an upper fixture 40 with the fulcrum, including an upper first mounting portion 41 fixed to a frame wall surface 16 by using an existing stud bolt 28 (upper fixing member) for fixing a mounting portion 26 (upper portion) of the device 18 to the building frame wall surface 16 and an upper second mounting portion 42 to which the mounting portion 26 (upper portion) of the device 18 is fixed.SELECTED DRAWING: Figure 2

Description

The present invention relates to a fulcrum fixture and a method of attaching the fulcrum fixture.

In a safety device for a vehicle for aerial work, it is disclosed that a hook of a rope connected to a worker is locked to a hook locking member of the rope in a locking body provided on a workbench (Patent Document 1). reference).

JP-A-2000-324927

When the water heater installed on the balcony is installed at a high place or when there is no fence with an effective height, workers who perform maintenance or replace the equipment use a stepladder or a workbench. If there is a risk of a fall, one of the protective measures is to attach a lifeline (safety belt, fall arrest device) when working. In that case, it is necessary to have an effective place to attach a lifeline around the water heater, but in many cases the round ring, which is the place to attach the lifeline, is not installed. In that case, we will consider installing a round ring as an afterthought, but since it is generally necessary to drive anchor bolts into the frame, there is a risk of damage to the frame, and the building owner refuses to implement it.

The present invention provides a fulcrum that can be connected to a fall prevention device without damaging the building frame in which equipment such as a water heater is installed, and safely performs maintenance and replacement work for the equipment. The purpose is to allow

A fulcrum mounting device according to a first aspect is a fulcrum mounting device that is retrofitted between a device installed on a wall surface of a building frame and the wall surface of the building frame, the fulcrum to which a fall arresting device can be connected; A lower first mounting portion fixed to the wall surface of the skeleton using an existing lower fixing member for fixing the lower part of the equipment to the wall surface of the skeleton, and a second lower mounting portion to which the lower part of the equipment is fixed. , a lower fixture provided with the fulcrum, an upper first mounting portion fixed to the wall surface of the skeleton using an existing upper fixing member for fixing the upper part of the equipment to the wall surface of the skeleton, and the equipment and an upper fixture provided with the fulcrum, which includes an upper second mounting part to which the upper part of the is fixed.

This fulcrum fixture is retrofitted between a device such as a water heater installed on the building frame wall surface and the building frame wall surface. The fulcrum fixture has a lower fixture and an upper fixture. The lower mounting fixture is fixed to the wall surface of the frame using the existing lower fixing member at the lower first mounting portion. The lower portion of the instrument is secured to the lower second mounting portion of the lower fitting. The upper fixture is fixed to the frame wall surface at the upper first mounting portion using an existing upper fixing member. The upper portion of the instrument is secured to the upper second mounting portion of the upper fixture. Thus, the upper fixture is fixed between the upper part of the device and the wall of the building frame. Also, the lower fixture is fixed between the lower part of the device and the wall surface of the frame. Since the lower fixture and upper fixture are each provided with a fulcrum to which a fall arrest device can be connected, a fall can be prevented without damaging the structure of the building where water heaters and other equipment are installed. A fulcrum can be provided to which a restraining device can be connected. In addition, by connecting a fall arresting device to the fulcrum, it is possible to safely carry out work such as maintenance and replacement of equipment.

A second aspect is the fulcrum fixture according to the first aspect, wherein the lower fixture has the fulcrum and the lower first attachment portion and allows a tool to be inserted into the lower first attachment portion from below. and a second member having the lower second attachment portion and attached to the first member.

In this fulcrum fixture, the lower fixture comprises a first member and a second member. The first member is fixed to the frame wall surface at the lower first mounting portion using an existing lower fixing member. Since the first member is arranged between the lower part of the equipment and the wall surface of the building frame, it is difficult to insert a tool into the lower first mounting portion from between the first member and the lower part of the equipment. However, in the first member, since the tool can be inserted into the lower first mounting portion from below, the work of mounting the first member can be easily performed. The second member has a lower second attachment portion and is attached to the first member so that the lower portion of the device can be secured to the lower second attachment portion after the second member is attached to the first member.

A method of mounting a fulcrum fixture according to a third aspect is a method of mounting a fulcrum fixture for post-installing a fulcrum fixture between a device installed on a building frame wall surface and the frame wall surface. A fulcrum to which an instrument can be connected, a lower first mounting portion fixed to the wall surface of the skeleton using an existing lower fixing member for fixing the lower part of the equipment to the wall surface of the skeleton, and the lower part of the equipment is fixed. and is fixed to the wall surface of the skeleton using a lower fixture provided with the fulcrum and an existing upper fixing member for fixing the upper part of the device to the wall surface of the skeleton. Using a fulcrum fixture having an upper first mounting part and an upper second mounting part to which the upper part of the device is fixed, and an upper fixture provided with the fulcrum, the lower part of the device is attached to the wall surface of the building frame. A first step of fixing the lower fixture to the skeleton wall surface using the lower fixing member remaining on the skeleton wall surface and re-fixing the lower part of the device to the lower fixture; a second step of removing from the wall surface of the skeleton, fixing the upper fixture to the wall surface of the skeleton using the upper fixing member remaining on the wall surface of the skeleton, and re-fixing the upper part of the device to the upper fixture; have

In this mounting method of the fulcrum fixture, the fulcrum fixture is retrofitted between the equipment installed on the building frame wall surface and the frame wall surface. In the first step, the lower part of the equipment is removed from the wall surface of the building frame, the lower fixing member remaining on the wall surface of the building frame is used to fix the lower fitting to the wall surface of the building frame, and the lower part of the equipment is re-fixed to the lower fitting. Next, in the second step, the upper part of the device is removed from the wall surface of the building frame, the upper fixing member remaining on the wall surface of the building frame is used to fix the upper fixture to the wall surface of the building frame, and the upper part of the device is re-fixed to the upper fixture. .

Since the lower fixture and the upper fixture are each provided with a fulcrum to which the fall arrest device can be connected, the fulcrum can be provided in the vicinity of the device.

Since the lower fixture is installed at a position lower in height than the upper fixture, the lower fixture can be safely and easily attached. If the equipment is installed in a high position, attach the lower fixture first and connect the fall arrest device to the fulcrum of the lower fixture. As a result, safety can be ensured when the work for attaching the upper fixture is performed.

A fourth aspect is the method of attaching a fulcrum fixture according to the third aspect, wherein the lower fixture has the fulcrum and the lower first attachment portion, and a tool is inserted into the lower first attachment portion from below. and a second member having the lower second attachment portion and attached to the first member; in the first step, fixing the first member to the wall surface of the skeleton; The second member is secured to one member and the lower portion of the device is re-secured to the second member.

In this fulcrum fixture mounting method, the lower fixture includes a first member and a second member. In the first step, the first member is fixed to the frame wall surface at the lower first attachment portion using an existing lower fixing member. Since the first member is arranged between the lower part of the equipment and the wall surface of the building frame, it is difficult to insert a tool into the lower first mounting portion from between the first member and the lower part of the equipment. However, in the first member, since the tool can be inserted into the lower first mounting portion from below, the work of mounting the first member can be easily performed. A second member having a lower second attachment portion is attached to the first member in a first step. After attaching the second member to the first member, the lower portion of the device can be resecured to the lower second attachment portion.

According to the present invention, a fulcrum to which a fall arrest device can be connected is provided on the frame of a building in which equipment such as a water heater is installed, without causing damage to the frame, and work such as maintenance and replacement of the equipment is performed. can be safely performed.

FIG. 4 is a cross-sectional view showing a state in which equipment is installed on the wall surface of the skeleton; It is an exploded perspective view showing a fulcrum fixture concerning this embodiment. It is sectional drawing which shows the process of removing the lower part of an apparatus from a building|framework wall surface. (A) It is sectional drawing which shows the process of fixing a lower fixture to a building|framework wall surface. (B) It is an enlarged cross-sectional view showing a process of fixing the lower fixture to the wall surface of the frame. (A) is a cross-sectional view showing the process of re-fixing the lower part of the device to the lower fixture. (B) is an enlarged cross-sectional view showing the process of re-fixing the lower portion of the device to the lower fixture. FIG. 10 is a cross-sectional view showing the process of removing the upper part of the device from the wall surface of the frame while the fall arresting device is connected to the fulcrum of the lower fixture. (A) It is sectional drawing which shows the process of fixing an upper fixture to a building|framework wall surface. (B) It is an enlarged cross-sectional view showing a process of fixing the upper fixture to the wall surface of the frame. (A) is a cross-sectional view showing the process of re-fixing the upper part of the device to the upper fixture. (B) It is an enlarged cross-sectional view showing the process of re-fixing the upper part of the device to the upper fixture. FIG. 4 is a cross-sectional view showing a state in which a fulcrum fixture is retrofitted between the wall surface of the frame and the equipment. It is an expanded sectional view which shows the modification of a lower fixture. FIG. 4 is a front view showing a state in which the device is attached to the wall surface of the skeleton via the fulcrum attachment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments for carrying out the present invention will be described based on the drawings. Components shown using the same reference numerals in each drawing mean the same or similar components. It should be noted that redundant descriptions and reference numerals in the embodiments described below may be omitted. Also, the drawings used in the following description are all schematic, and the dimensional relationship of each element, the ratio of each element, etc. shown in the drawings do not necessarily match the actual ones. Moreover, the dimensional relationship of each element, the ratio of each element, etc. do not necessarily match between a plurality of drawings.

In FIG. 1, a device 18 such as a water heater is installed on a wall surface 16 of a building 12 facing, for example, a veranda 14 . A plate-shaped mounting portion 21 is provided on the lower portion of the device 18 . The mounting portion 21 is fixed to the frame wall surface 16 by a stud bolt 22 and a nut 24 as an example of a lower fixing member. A plate-like mounting portion 26 is provided on the upper portion of the device 18 . The mounting portion 26 is fixed to the frame wall surface 16 by a stud bolt 28 and a nut 29 as an example of an upper fixing member.

In FIG. 2, the fulcrum fixture 10 according to the present embodiment is to be retrofitted between the equipment 18 installed on the frame wall surface 16 of the building 12 and the frame wall surface 16 . The building 12 is, for example, a high-rise house and has a veranda 14 . A device 18 such as a water heater is installed on the wall surface 16 of the veranda 14 . The fulcrum fixture 10 has a fulcrum 20 , a lower fixture 30 and an upper fixture 40 . Lower fixture 30 and upper fixture 40 are arranged horizontally and have a length greater than the width dimension of device 18 .

The fulcrum 20 is, for example, an annular member (eyebolt) to which the fall arrest device 44 can be connected, and is attached to both ends of the lower fixture 30 and the upper fixture 40, respectively.

(Lower mounting bracket)
The lower mounting fixture 30 includes a lower first mounting portion 31 and a lower second mounting portion 32 to which the lower portion (mounting portion 21) of the device 18 is fixed, and a fulcrum 20 is provided. As an example, the lower fixture 30 has a split structure including a first member 51 and a second member 52 . The first member 51 has a fulcrum 20 and a lower first attachment portion 31, and a tool can be inserted into the lower first attachment portion 31 from below.

Specifically, the first member 51 of the lower fixture 30 is, for example, a vertically elongated hollow pipe with a rectangular cross section. The fulcrums 20 are attached, for example, to the longitudinal ends of the front surface of the first member 51 . A notch 51A extending from the front surface to the bottom surface is formed in the central portion of the first member 51 in the longitudinal direction. The lower first attachment portion 31 is provided on the back surface of the first member 51 and exposed at the notch 51A. Thereby, a tool can be inserted into the lower first mounting portion 31 from below. Male threads 34 are provided in the vicinity of both longitudinal sides of the notch 51A on the bottom surface of the first member 51 so as to protrude downward.

A plurality of through holes 31</b>A are formed in the lower first attachment portion 31 so as to be aligned in the longitudinal direction of the first member 51 . The lower first mounting portion 31 is fixed to the frame wall surface 16 using the existing stud bolts 22 and nuts 24 for fixing the lower portion (mounting portion 21 ) of the device 18 to the frame wall surface 16 . At this time, the through hole 31A that matches the position of the existing stud bolt 22 is selected.

The second member 52 is, for example, a plate-shaped member having an L-shaped cross section, which has a lower second attachment portion 32 and is attached to the first member 51 . The second member 52 is formed longer than the notch 51A of the first member 51 in its longitudinal direction. Through holes 52</b>A through which the male screws 34 are inserted are formed at both ends in the longitudinal direction of the bottom surface of the second member 52 . The second member 52 is fixed to the first member 51 by inserting the male screw 34 into the through hole 52A and tightening the nut 36 on the male screw 34 . At this time, both ends of the second member 52 overlap the front surface and the bottom surface of the first member 51 to close the notch 51A.

The lower second attachment portion 32 is the front surface of the second member 52 . A plurality of through holes 32</b>A are formed in the lower second attachment portion 32 so as to be aligned in the longitudinal direction of the second member 52 . The lower portion (mounting portion 21) of the device 18 is fixed to the lower second mounting portion 32 using a screw 38 (FIG. 5(B)) screwed into the through hole 32A.

(Upper fixture)
The upper mounting member 40 includes an upper first mounting portion 41 and an upper second mounting portion 42, and a fulcrum 20 is provided. The upper first mounting portion 41 is fixed to the frame wall surface 16 using existing stud bolts 28 and nuts 29 for fixing the upper portion (mounting portion 26 ) of the device 18 to the frame wall surface 16 . The upper portion (mounting portion 26 ) of the device 18 is fixed to the upper second mounting portion 42 .

Specifically, the upper fixture 40 is, for example, a vertically elongated hollow pipe with a rectangular cross section. The fulcrums 20 are attached, for example, to the longitudinal ends of the front surface of the upper fixture 40 . For example, two oval windows 40A are formed on the front surface of the upper fixture 40 . The window 40A is a through hole for inserting a tool. The upper first attachment portion 41 is provided on the back surface of the upper attachment 40 . A plurality of through holes 41A are formed side by side in the longitudinal direction of the upper mounting member 40 at the back of the window 40A in the upper first mounting portion 41 . The upper first mounting portion 41 is fixed to the frame wall surface 16 using the existing stud bolts 28 and nuts 29 for fixing the upper portion (mounting portion 26 ) of the device 18 to the frame wall surface 16 . At this time, the through hole 41A that matches the position of the existing stud bolt 28 is selected.

The upper second attachment portion 42 is the front surface of the upper attachment 40 . A plurality of through holes 42A are formed side by side in the longitudinal direction of the upper mounting member 40, for example, between two windows 40A in the upper second mounting portion 42. As shown in FIG. The upper portion (mounting portion 26) of the device 18 is fixed to the upper second mounting portion 42 using a screw 48 (FIG. 8(B)) screwed into the through hole 42A.

(How to install the fulcrum fixture)
The mounting method of the fulcrum fixture 10 is a mounting method of the fulcrum fixture 10 for retrofitting the fulcrum fixture 10 between the equipment 18 installed on the skeleton wall surface 16 of the building 12 and the skeleton wall surface 16. S1 and a second step S2.

3 to 5, the first step S1 is to loosen the nut 24 to remove the lower portion (mounting portion 21) of the device 18 from the wall surface 16 (FIG. 3), remove the stud bolt 22 remaining on the wall surface 16, and remove the It is a step of fixing the lower fixture 30 to the building wall surface 16 using the nut 24 (FIG. 4) and re-fixing the lower part (mounting portion 21) of the device 18 to the lower fixture 30 (FIG. 5). The nut 29 fixing the upper portion (mounting portion 26 ) of the device 18 may be loosened so that the device 18 can be easily tilted when the lower portion (mounting portion 21 ) of the device 18 is separated from the wall surface 16 of the building frame.

When the lower fixture 30 has a split structure including the first member 51 and the second member 52, as shown in FIG. 1 member 51 is fixed. At this time, the first member 51 is arranged between the lower portion (mounting portion 21) of the device 18 and the frame wall surface 16, and in the first member 51, a tool can be inserted into the lower first mounting portion 31 from below. Therefore, the operation of attaching the first member 51, specifically, the operation of tightening the nut 24 can be easily performed.

Subsequently, the second member 52 is fixed to the first member 51 by passing the male screw 34 of the first member 51 through the through hole 52A of the second member and tightening the nut 36 on the male screw 34 . Then, the lower portion (mounting portion 21 ) of the device 18 is re-fixed to the second member 52 . Since the second member 52 has a lower second attachment portion 32, after the second member 52 is attached to the first member 51, the lower portion (attachment portion 21) of the device 18 is attached using the screws 38 to the lower second attachment portion 32. It can be fixed to the mounting portion 32 (Fig. 5). The screw 38 is screwed into the through hole 32A of the lower second attachment portion 32 . Since the device 18 is tilted at this stage, the fixing of the lower portion (mounting portion 21) with the screws 38 may be performed temporarily. Since the lower mounting fixture 30 is installed at a position lower in height than the upper mounting fixture 40, the lower mounting fixture 30 can be safely and easily mounted.

6 to 8, the second step S2 is to loosen the nut 29 to remove the upper portion (mounting portion 26) of the device 18 from the wall surface 16 (FIG. 6), remove the stud bolt 28 remaining on the wall surface 16, and remove the It is a step of fixing the upper fixture 40 to the building wall surface 16 using the nut 29 (FIG. 7) and re-fixing the upper part (mounting portion 26) of the device 18 to the upper fixture 40 (FIG. 8). A tool (not shown) for tightening the nut 29 when fixing the upper fixture 40 can be inserted through the front window 40A (FIG. 2). The upper fixture 40 has a second upper mounting portion 42 so that screws 48 can be used to secure the upper portion (mounting portion 26) of the device 18 to the second upper mounting portion 42 (FIG. 8). The screw 48 is screwed into the through hole 42A of the upper second attachment portion 42 .

The fulcrum 20 of the lower fixture 30 and the worker 50 are connected by a fall arrest device 44 as necessary, such as when the equipment 18 is installed at a high position or when work is performed on a high floor. The fall arrest device 44 is, for example, a safety harness. As a result, safety can be ensured when the work for attaching the upper fixture 40 is performed. Even when the worker 50 mounts the upper fixture 40 on a workbench (not shown), the safety of the worker 50 can be similarly ensured.

Thereby, as shown in FIGS. 9 and 10, the lower fixture 30 and the upper fixture 40 of the fulcrum fixture 10 can be retrofitted between the equipment 18 and the frame wall surface 16 . Since the lower mounting fixture 30 and the upper mounting fixture 40 are each provided with a fulcrum 20 to which a fall arresting device 44 can be connected, damage to the structure of the building 12 in which the device 18 such as the water heater is installed may occur. A fulcrum 20 can be provided to which the fall arrest device 44 can be connected without the Also, by connecting the fall arresting device 44 to the fulcrum 20, the work such as maintenance and replacement of the device 18 can be safely performed.

[Other embodiments]
An example of the embodiment of the present invention has been described above, but the embodiment of the present invention is not limited to the above, and can be modified in various ways without departing from the spirit of the present invention. Of course there is.

Although the notch 51A is formed in the first member 51 of the lower fixture 30 in FIG. 2, it is sufficient if the tool can be inserted from below. For example, as shown in FIG. 11, the lower fixture 30 may be configured in an inverted U shape. When configured in this way, the lower fixture 30 does not have to have a split structure as shown in FIG. This is because a tool can be inserted into the bottom mounting member 30 because the lower portion thereof is open. In this example, the lower second attachment portion 32 is the front surface of the lower attachment 30, and a through hole 32A for fastening the screw 38 is also formed in the front surface.

10 fulcrum fixture 12 building 16 frame wall surface 18 device 20 fulcrum 21 mounting part (lower part of device)
22 stud bolt (lower fixing member)
26 Mounting part (upper part of equipment)
28 stud bolt (upper fixing member)
30 Lower fixture 31 Lower first fixture 32 Lower second fixture 40 Upper fixture 41 Upper first fixture 42 Upper second fixture 44 Fall arrest device 51 First member 52 Second member

Claims (4)

A fulcrum fixture that is retrofitted between a device installed on a building frame wall surface and the frame wall surface,
a fulcrum to which a fall arrest device can be connected;
A lower first mounting portion that is fixed to the building frame wall surface using an existing lower fixing member for fixing the lower portion of the equipment to the building frame wall surface, and a lower second mounting portion to which the lower portion of the equipment is fixed. a lower fixture provided with said fulcrum;
An upper first mounting part fixed to the building frame wall surface using an existing upper fixing member for fixing the upper part of the equipment to the building wall wall, and an upper second mounting part to which the upper part of the equipment is fixed. an upper fixture provided with the fulcrum;
A fulcrum fixture having a The lower mounting fixture includes a first member having the fulcrum and the lower first mounting portion and capable of inserting a tool into the lower first mounting portion from below, and the lower second mounting portion having the first member. 2. The fulcrum mount of claim 1, comprising a second member attached to the fulcrum mount. A mounting method for a fulcrum fixture for retrofitting a fulcrum fixture between a device installed on a building frame wall surface and the frame wall surface, comprising:
a fulcrum to which a fall arrest device can be connected;
A lower first mounting portion that is fixed to the building frame wall surface using an existing lower fixing member for fixing the lower portion of the equipment to the building frame wall surface, and a lower second mounting portion to which the lower portion of the equipment is fixed. a lower fixture provided with said fulcrum;
An upper first mounting part fixed to the building frame wall surface using an existing upper fixing member for fixing the upper part of the equipment to the building wall wall, and an upper second mounting part to which the upper part of the equipment is fixed. using a fulcrum fixture having an upper fixture provided with the fulcrum,
The lower part of the equipment is removed from the wall surface of the skeleton, the lower fixing member remaining on the wall surface of the skeleton is used to fix the lower fixture to the wall surface of the skeleton, and the lower part of the appliance is re-fixed to the lower fixture. 1 step;
The upper part of the equipment is removed from the wall surface of the skeleton, the upper fixture is fixed to the wall of the skeleton using the upper fixing member remaining on the wall of the skeleton, and the upper part of the equipment is re-fixed to the upper fixture. 2 steps;
A method of mounting a fulcrum fixture having The lower mounting fixture includes a first member having the fulcrum and the lower first mounting portion and capable of inserting a tool into the lower first mounting portion from below, and the lower second mounting portion having the first member. a second member attached to the
4. The method according to claim 3, wherein in the first step, the first member is fixed to the wall surface of the skeleton, the second member is fixed to the first member, and the lower portion of the device is re-fixed to the second member. How to install the fulcrum fixture.

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