JP5761667B2 - Detection switch mounting structure and security system for temporary scaffolding using the same - Google Patents

Description

  The present invention relates to a detection switch mounting structure for detecting an intruder of an illegal intruder, for example, in a temporary scaffold assembled at a construction site or the like. The present invention also relates to a security system for a temporary scaffold for preventing an intruder from invading using this mounting structure.

  Conventionally, in construction sites where renovations and repair work (painting, tiling, waterproofing repairs, crack repairs, etc.) of condominiums, etc. are carried out, there are temporary scaffolds for workers to work at heights around buildings. Assembled. Around the temporary scaffolding, for example, a construction sheet that is used to prevent material from falling or blindfolded, or to block dust, noise, and the like generated during work is attached.

  When the construction sheet is attached to the temporary scaffolding, the construction sheet makes it difficult to see the inside (building) from the outside. As a result, illegal intruders can easily enter a building such as a condominium from the temporary scaffold using the temporary scaffold during nighttime when the worker is not at the construction site or during the daytime break of the construction work.

  Therefore, for example, Patent Document 1 proposes a crime prevention system in which an intrusion detection device such as an infrared sensor is installed on a horizontal member or a column of a temporary scaffold, and an intruder is detected by the intrusion detection device. Patent Document 2 proposes a crime prevention system in which a sheet-like foot switch is provided and an illegal intruder detects the illegal intruder by stepping on the foot switch.

JP 2010-39529 A JP-A-2005-31831

  However, since the intrusion detection device is installed by being attached to a horizontal member or a column of a temporary scaffold, there is a problem that it is easily detected by an illegal intruder who enters the temporary scaffold. In addition, since the sheet-like foot switch is installed at, for example, an ascending entrance of a staircase, there is also a problem that the external appearance is exposed and it is easy to be found by an illegal intruder. For this reason, illegal intruders may avoid intrusion detection devices and foot switches, or illegal intruders may break intrusion detection devices and the like.

  An object of the present invention is to provide a detection switch mounting structure that has been conceived under the circumstances described above and that is not easily noticed by illegal intruders. It is another object of the present invention to provide a temporary scaffolding crime prevention system using the detection switch mounting structure.

The mounting structure of the detection switch provided by the first aspect of the present invention is a mounting structure of the detection switch for detecting a person who enters the temporary scaffold, and is for locking to the horizontal material of the temporary scaffold . A switch pressing portion for pressing the detection switch is provided on the back side of the long scaffold plate having a hook so as to be movable up and down, and the detection switch extends in the longitudinal direction of the scaffold plate. A tape switch having a long plate shape and having a ridge, wherein the switch pressing portion extends in the longitudinal direction of the scaffold plate and has an upper surface in contact with the back side of the scaffold plate, and the scaffold plate The rod-shaped member extends in the short direction and supports the load receiving member on the lower side thereof, and is configured by a plurality of rod-shaped members for pressing the protrusions of the tape switch. A Jo and extends in a direction perpendicular to the longitudinal direction of the scaffolding board, the plurality of bar-like members are arranged in parallel at a predetermined interval in a central portion of the load receiving material, the switch pressing A switch support part for supporting the tape switch so as not to move up and down is provided below the part , and the rod-like member of the switch pressing part is displaced downward in response to a load applied to the scaffold plate. The ridge of the tape switch is pressed by.

  In the detection switch mounting structure of the present invention, an elastic member may be interposed between the rod-shaped member and the detection switch.

  In the mounting structure of the detection switch of the present invention, the scaffold plate is a cloth with a floor, and the switch support portion is an extension portion that is folded and extended to an end portion along a longitudinal direction of the floor cloth. It may be fixed and supported.

Security system for a temporary scaffold provided by the second aspect of the present invention, the transmission and the mounting structure of the detection switch thus provided to the first side surface of the present invention, a detection signal in response to an output of the detection switch Transmitting means for receiving, receiving means for receiving the detection signal transmitted from the transmitting means, and alarm means for warning based on the reception means receiving the detection signal.

  According to the mounting structure of the detection switch of the present invention, since the detection switch is mounted on the back side of the scaffold plate (for example, cloth with floor) or the staircase connection plate, it becomes difficult for an intruder to enter the temporary scaffold to be easily noticed, It is possible to prevent the detection switch from being passed or broken by an intruder. In addition, since the detection switch is attached to the back side of the scaffolding plate or the like, it is difficult to adhere to the detection switch even if, for example, raw concrete, mortar, paint, etc. used in the field work are scattered. Therefore, the possibility of causing the malfunction of the detection switch itself can be reduced.

  Further, according to the crime prevention system for a temporary scaffold of the present invention, the detection signal from the detection switch is sent to the reception means by the transmission means and alarmed by the alarm means, so that the intruder is dissipated from the temporary scaffold and the temporary scaffold or Intrusion into an apartment can be prevented.

It is a perspective view of the cloth with a floor to which the attachment structure of the detection switch concerning a 1st embodiment of the present invention is applied. It is an AA arrow line view shown in FIG. It is a perspective view which shows the attachment structure of a detection switch. It is a perspective view which shows the attachment structure of a detection switch, (a) is a top view, (b) is a side view. It is an expanded sectional view of a detection switch. It is a figure for demonstrating the state where the load was added to the cloth with a floor, (a) shows a normal state, (b) shows the state where the load was added. It is a figure for demonstrating the load force added to a load receiving material. It is a block diagram of the crime prevention system for temporary scaffolds. It is another block diagram of the crime prevention system for temporary scaffolds. It is a perspective view of the stairs to which the attachment structure of the detection switch concerning a 2nd embodiment of the present invention was applied. It is a side view which shows the attachment structure of the detection switch which concerns on 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

<First Embodiment>
FIG. 1 is a perspective view of a cloth with a floor to which a detection switch mounting structure according to a first embodiment of the present invention is applied. FIG. 2 is an AA arrow view shown in FIG. FIG. 3 is a perspective view showing a mounting structure of the detection switch. In FIG. 3, cloth with a floor is omitted. FIGS. 4A and 4B are perspective views showing the detection switch mounting structure, where FIG. 4A is a plan view and FIG.

  As shown in FIG. 1, the detection switch mounting structure according to the present embodiment is applied to, for example, a cloth with a floor used for a temporary scaffold such as a construction site. The cloth with floor 1 is used as a scaffold plate in a temporary scaffold, and is used for an operator to walk in the temporary scaffold.

  The floor cloth 1 has two long floor base materials 2 and is arranged in parallel so that the upper surfaces of both floor base materials 2 are substantially flush with each other. At both ends in the longitudinal direction of the cloth 1 with a floor, connecting members 3 for arranging two floor base materials 2 side by side are provided. Each connecting member 3 is provided with a pair of arc-shaped hooks 4 for locking the cloth with floor 1 to a horizontal member (not shown). Further, the floor cloth 1 is provided with three reinforcing members 5 extending in a direction orthogonal to the longitudinal direction and connecting the outer ends of the floor base material 2 with a predetermined interval.

  The detection switch mounting structure is provided on the back side of the floor cloth 1, that is, on the back side of each floor base material 2, and is arranged side by side in a direction perpendicular to the longitudinal direction of the floor base material 2. The mounting structure is provided between the adjacent reinforcing members 5.

  As shown in FIG. 2, each floor base material 2 is roughly formed in a U-shaped cross section, and is further formed by being bent so that an end portion along the longitudinal direction is wound inside. That is, the floor base material 2 includes a flat planar portion 2a, a vertical surface portion 2b extending downward from an end portion along the longitudinal direction of the flat surface portion 2a, and a horizontal direction from the end portion of the vertical surface portion 2b. An extended horizontal surface portion 2c and a bent surface portion 2d extended upward from an end portion of the horizontal surface portion 2c are provided.

  The detection switch mounting structure includes a detection switch 11, a switch support portion 12 for supporting the detection switch 11, and a switch pressing portion 13 for pressing the detection switch 11.

  The detection switch 11 is a switch that detects that the floor cloth 1 has been stepped on by an illegal intruder into the temporary scaffolding. The detection switch 11 is configured by a long plate-like tape switch having a predetermined length (for example, 150 mm). The detection switch 11 is fixed to the upper surface of a switch mounting plate 14 (described later) of the switch support 12.

  As shown in FIG. 5, the detection switch 11 includes a detection member 11a for detecting a pressed state by a pressed member (corresponding to a spacer 23 described later in the present embodiment), and a support member 11b for inserting and supporting the detection member 11a. It is comprised by. The detection member 11a is made of, for example, vinyl chloride and has a desired elasticity. On the surface of the detection member 11 a, a protrusion 11 c is formed along the longitudinal direction of the detection switch 11. The protrusion 11c is a portion pressed by the pressed member. The detection member 11a is replaceable with respect to the support member 11b.

  As shown in FIGS. 2 to 4, the switch support portion 12 includes a switch mounting plate 14 and a base member 15. The switch mounting plate 14 mounts the detection switch 11 and is formed in a substantially flat plate shape. The switch mounting plate 14 is attached to the lower surface side of the base member 15 by bolting. Thus, the mounting height of the detection switch 11 can be finely adjusted by bolting the switch mounting plate 14, and the switch sensitivity when the detection switch 11 is pressed by the pressed member is adjusted. Can do. The switch mounting plate 14 may be provided integrally with the base member 15.

  The base member 15 is formed in a substantially flat plate shape. As shown in FIG. 2, the base member 15 is supported by the end surfaces of the pair of bent surface portions 2 d of the floor base material 2 at both ends along the longitudinal direction of the floor cloth 1. More specifically, one end portion of the base member 15 is bent downward, and the bent end portion is locked to the bending surface portion 2 d of the floor base material 2. A plurality of protrusions 16 projecting downward are formed at the other end of the base member 15, and these protrusions 16 function as members for preventing the base member 15 from coming off the floor base material 2.

  Further, a bolt 17 that can be moved back and forth in the short direction of the floor cloth 1 is supported by an attachment plate 18 at the end of the base member 15. The bolt 17 is for fixing the switch support part 12 to the floor base material 2. With this configuration, the switch support portion 12 is fixed to the floor base material 2, and the detection switch 11 is not allowed to move up and down even when a load force is applied to the floor base material 2.

  A long rectangular hole 19 having a size larger than the outer shape of the detection switch 11 is formed in the central portion of the base member 15 (see FIG. 4A). The detection switch 11 faces upward from the long rectangular hole 19.

  The base member 15 is provided with substantially L-shaped angles 20 on the upper surfaces of both end portions along the longitudinal direction of the floor base material 2. The angle 20 is formed with a substantially circular hole 20a. Both end portions of a columnar rod-shaped member 21 described later are loosely fitted in the holes 20a. That is, the diameter of the hole 20a is larger than the diameter of the rod-shaped member 21, and the rod-shaped member 21 is movable in the vertical direction within the hole 20a.

  The switch pressing portion 13 is wound around the two rod-shaped members 21, two rod-shaped members 21 for pressing the detection switch 11, a pair of load receiving members 22 for transmitting a load force to the both rod-shaped members 21, and the like. And a spacer 23.

  The rod-shaped member 21 transmits the load force from the load receiving material 22 to the detection switch 11. The rod-shaped member 21 is formed in a columnar shape. The two rod-like members 21 are arranged in parallel at a predetermined interval in a direction orthogonal to the longitudinal direction of the floor base material 2. Thus, since the rod-shaped member 21 is cylindrical, the rod-shaped member 21 is in point contact with the protrusion 11c of the detection switch 11. Therefore, the load force from the load receiving material 22 can be concentrated and transmitted to the contact location of the detection switch 11.

  The pair of load receiving members 22 are supported by both rod-like members 21, respectively. The two load receiving members 22 transmit to the rod-shaped member 21 that the floor cloth 1 has been stepped on by the operator, that is, that a load has been applied to the floor cloth 1. The load receiving member 22 is formed in a U-shaped cross section and has a length in the longitudinal direction of, for example, 600 mm.

  The pair of load receiving members 22 are arranged in parallel at a predetermined interval along the longitudinal direction of the cloth 1 with a floor. As shown in FIG. 2, the surface of the load receiving material 22 is arranged so as to be in contact with the back surface side of the flat surface portion 2 a of the floor base material 2 (cloth cloth 1 with a floor). On the side surface along the longitudinal direction of the load receiving material 22, a pair of downward semicircular concave portions is formed. Two bar-shaped members 21 are arranged and locked in these recesses in a direction perpendicular to the longitudinal direction of the load receiving member 22.

  The load receiving material 22 is set to the above length in consideration of the human stride, that is, when the illegal intruder walks on the floor cloth 1, the position of the load receiving material 22 is set. The length of the load receiving material 22 is set so as not to straddle. In addition, the mounting structure of the detection switch 11 is not staggered but is arranged in parallel in the direction orthogonal to the longitudinal direction of the floor base material 2 when any illegal intruder walks on the floor cloth 1. This is because the possibility that an illegal intruder steps on the load receiving material 22 is considered.

  In addition, since the rod-shaped member 21 is arranged at the center of the load receiving material 22, even if a load force is applied to any part of the load receiving material 22, the load force is concentrated and transmitted to the rod-shaped member 21. Can do. Moreover, since the two rod-shaped members 21 are arranged in parallel to the load receiving material 22, the load receiving material 22 can be stably supported. Therefore, the load receiving material 22 has an advantage that the entire upper surface thereof is more easily in contact with the back surface side of the floor base material 2.

  The spacer 23 is wound around the central portion of each rod-shaped member 21 between the two load receiving members 22. The spacer 23 is made of an elastic member such as nitrile rubber used for an O-ring or an oil seal, for example. The spacer 23 is disposed at a position slightly in contact with a tip portion of a protrusion 11c of the detection switch 11 described later in a normal state.

  As described above, by providing the spacer 23 having elasticity equivalent to that of nitrile rubber between the rod-shaped member 21 and the protrusion 11 c of the detection switch 11, appropriate contact between the spacer 23 and the detection switch 11 is obtained. Can have. That is, if the spacer 23 is formed of metal or the like, the detection switch 11 may remain on even in a normal state where the floor cloth 1 is not stepped on due to rattling of the mounting position. Also, if the spacer 23 has an elastic force equal to or less than that of nitrile rubber, the detection switch 11 may remain off even when the floor cloth 1 is stepped on. . Therefore, although the load force of the load receiving material 22 may not be properly transmitted, in this embodiment, the load force applied to the load receiving material 22 is appropriately transmitted to the detection switch 11 by using the spacer 23. Can do.

  According to the above configuration, when an illegal intruder enters the temporary scaffold and the illegal intruder steps on the cloth side 1 with the floor, that is, the surface side to which the load receiving material 22 of the floor base material 2 is attached, as shown in FIG. Thus, the floor base material 2 bends, and accordingly, the load force P is applied to the load receiving material 22 and the load receiving material 22 is displaced downward. In response to this, the bar-shaped member 21 is also displaced downward, and the surface of the spacer 23 of the bar-shaped member 21 presses the protrusion 11 c of the detection switch 11. As a result, the detection switch 11 is turned on and outputs a contactless contact signal. As will be described later, since the wireless transmitter 31 (see FIG. 8) is connected to the detection switch 11, the detection switch 11 outputs the contact signal to the wireless transmitter 31. Thereby, it can be detected that a load has been applied to the floor cloth 1 and the detection switch 11 can detect the intrusion of an illegal intruder.

  In this case, since the detection switch 11 is provided at a location where it is difficult for the intruder to enter, such as the back side of the cloth 1 with a floor as described above, the intruder is not easily noticed. Therefore, it is possible to prevent the detection switch 11 from being evaded or broken by an illegal intruder.

  Moreover, since the detection switch 11 is provided in the back surface side of the cloth 1 with a floor | bed, it becomes difficult to adhere | attach materials, such as a raw concrete, a mortar, and a paint which an operator uses for field work. Therefore, it is possible to reduce the possibility of causing a malfunction due to these materials adhering to the detection switch 11 and solidifying, and the detection switch 11 can be used for a long time.

  Further, since the load receiving member 22 is supported by the substantially cylindrical rod-shaped member 21, for example, when a load force P0 is applied to one end of the load receiving member 22, as shown in FIG. At the other end, an acting force P1 is generated upward with the rod-shaped member 21 as a fulcrum C. Therefore, further load force (reaction force) P <b> 2 is applied downward at one end with the rod-like member 21 as the fulcrum C by the acting force P <b> 1.

  Thus, when the load receiving member 22 is installed in a so-called seesaw shape in the mounting structure of the detection switch 11, as described above, the load force to the load receiving member 22 is approximately doubled. Thus, the detection switch 11 can be reliably turned on. Further, the range of detecting illegal intruders can be set to a distance of about 600 mm (the length of the load receiving material 22) by the relatively short detection switch 11 of about 150 mm. Accordingly, the outer shape of the detection switch 11 can be made compact, while the range for detecting illegal intruders can be expanded.

  The above-described detection switch mounting structure is applied to a temporary scaffolding crime prevention system for preventing illegal intruders from entering the temporary scaffolding as shown in FIG. That is, crime prevention systems for temporary scaffolds are roughly classified into equipment provided on the temporary scaffold side and equipment provided on the site office side. The temporary scaffold side device includes the detection switch 11, the wireless transmitter 31, and the scaffold side alarm device 32. The on-site office equipment includes a controller 33 and an office alarm 34 as a radio receiver and radio transmitter.

  As shown in FIG. 1, the wireless transmitter 31 is arranged on the back side of the floor cloth 1 and in the vicinity of the mounting position of the detection switch 11. The wireless transmitter 31 wirelessly transmits a detection signal (contact signal) detected by the detection switch 11 to a controller 33 provided in the field office. That is, when the detection signal from the detection switch 11 is input, the wireless transmitter 31 transmits a transmission signal to that effect to the controller 33 by radio. The wireless transmitter 31 can be operated by, for example, a dry battery as a power source, and an AC voltage such as AC 100 V is not required.

  As described above, the wireless transmitter 31 wirelessly transmits the detection signal from the detection switch 11 to the field office, so that it is not necessary to route the cable as compared with the case where the signal is transmitted by wire, and the cost can be reduced. be able to. Moreover, since the wireless transmitter 31 is also provided on the back side of the cloth 1 with a floor, it is difficult for an intruder to see it.

  The scaffold side alarm device 32 is for warning an intruder and threatening the intruder. The scaffold side alarm device 32 has, for example, a voice output unit and a light output unit (not shown). The scaffold side alarm device 32 emits a warning sound from the sound output unit or emits flashing light from the light output unit in accordance with an operation signal from the controller 33.

  In addition, the scaffold side alarm device 32 may be provided with only one of the audio output unit and the light output unit. The scaffold side alarm 32 may be attached to a horizontal member or a column of the temporary scaffold, but it is difficult to catch an illegal intruder, for example, on the back side of the cloth 1 with a floor like the detection switch 11. It is more desirable to arrange. Moreover, the scaffold side alarm device 32 may receive a detection signal directly from the detection switch 11, and may notify based on it.

  The controller 33 is for operating the scaffold side alarm device 32 and the office side alarm device 34. When the controller 33 receives a transmission signal from the wireless transmitter 31, the controller 33 wirelessly transmits an operation signal to the scaffold side alarm device 32 and operates with respect to the office side alarm device 34 provided in the same office. The signal is transmitted by wire.

  The office side alarm device 34 is for notifying an operator in the office when an illegal intruder is detected. The office side alarm device 34 has an audio output unit and a light output unit (not shown), similarly to the scaffold side alarm device 32. The scaffold side alarm device 32 emits a warning sound from the sound output unit or emits flashing light from the light output unit in accordance with an operation signal from the controller 33.

  As described above, the crime prevention system for the temporary scaffold according to the present embodiment transmits a signal indicating that to the controller 33 via the wireless transmitter 31 when the detection switch 11 detects intrusion in the temporary scaffold. Then, it is notified by the scaffold side alarm device 32 and the office side alarm device 34. Therefore, the illegal intruder is likely to be surprised at the notification by the scaffold side alarm device 32 and dismiss the place. Accordingly, it is possible to suppress further intrusion into the temporary scaffolding and intrusion into a building such as a condominium. In addition, the office side alarm device 34 notifies at the site office, so that a worker in the field office can surely know that an illegal intruder has entered the temporary scaffolding.

  The crime prevention system for temporary scaffolding is not limited to the above configuration, and the scaffolding side alarm device 32 may not notify even if an operator working at the temporary site steps on the cloth 1 with the floor provided with the detection switch 11. . For example, as shown in FIG. 9, this temporary scaffolding crime prevention system receives a mobile transmitter 35 that is always carried by an operator and a transmission signal from the mobile transmitter 35 in addition to the configuration shown in FIG. 8 described above. A receiver 36 may be provided.

  That is, when the operator steps on the floor cloth 1 provided with the detection switch 11, there is no need to notify the scaffold side alarm device 32. For this reason, when a transmission signal is transmitted from the portable transmitter 35 carried by the worker and this transmission signal is received by the receiver 36, a prohibition signal for prohibiting the alarm signal to the controller 33 is transmitted to the wireless transmitter 31. To do. Thereby, even if the worker carrying the portable transmitter 35 steps on the cloth 1 with the floor, the scaffold side alarm device 32 does not ring, so that the worker can work with peace of mind, that is, an illegal intruder. And the worker can be clearly distinguished.

  Furthermore, the controller 33 installed in the field office may be provided with a function for reporting to a specific mobile phone. That is, when the controller 33 receives a detection signal from the wireless transmitter 31 that a trespasser has stepped on the cloth 1 with a floor, for example, an email, a ringing tone, or a voice is sent to a mobile phone normally carried by the worker. Notify by notification. Therefore, even if the worker who owns the mobile phone is not in the field office, he can know the intrusion of the illegal intruder and can take appropriate measures.

Second Embodiment
FIG. 10 is a perspective view showing a detection switch mounting structure according to the second embodiment of the present invention. FIG. 11 is a side view showing the detection switch mounting structure. The attachment structure of the detection switch according to the second embodiment is the same as that of the first embodiment, in which the attachment location to which the detection switch 11 is attached is a staircase laid on a temporary scaffold, and the attachment location is a floor cloth 1. Different.

  The staircase 41 used for the temporary scaffolding is made of, for example, an aluminum alloy, and is provided above the floor cloth 1 described above. The stairs 41 connects a plurality of treads 42 arranged at equal intervals in the height direction, a pair of support members 43 for supporting the plurality of treads 42 from the left and right, and the lowermost ends of the support members 43. And the connecting plate 44.

  The detection switch mounting structure according to the second embodiment is provided on the back side of the connecting plate 44, and includes a switch mounting plate 45 and a radio transmitter mounting plate 46 as shown in FIG. The switch mounting plate 45 is formed in a substantially U-shaped cross section, and has a lower plate 45a, a middle plate 45b extending upward from the end of the lower plate 45a, and a horizontal direction from the end of the middle plate 45b. The upper plate 45c is extended. The lower plate 45a is longer than the upper plate 45c.

  The detection switch 11 is mounted on the upper surface of the lower plate 45a, and the detection switch 11 is sandwiched between the lower plate 45a and the connecting plate 44. A radio transmitter mounting plate 46 is connected to the middle plate 45b. The wireless transmitter mounting plate 46 is formed in a substantially U-shape and extends in the vertical direction. A wireless transmitter 31 is attached to the inside of the transmitter mounting plate 46. The transmitter mounting plate 46 may be mounted extending in the horizontal direction. Further, in FIG. 11, reference numeral 47 is a bolt for fixing the switch mounting plate 45 to the connecting plate 44.

  According to the above configuration, when an intruder steps on one of the treads 42, the load force is applied to the detection switch 11 provided on the back side of the connecting plate 44 via the pair of support members 43, and the detection switch 11. Is turned on. Since the detection switch 11 outputs a detection signal to the wireless transmitter 31, even when the detection switch 11 is provided on the back side of the connecting plate 44 in this way, it is possible to detect the intrusion of an illegal intruder. For example, even when an illegal intruder steps on the connecting plate 44, the connecting plate 44 can transmit the load force on the step plate 42 to the detection switch 11. Therefore, the detection switch 11 is appropriately turned on and can detect the intrusion of an illegal intruder.

  Since the staircase 41 is made of an aluminum alloy and is relatively light, the detection switch 11 is turned off in a normal state. If the detection switch 11 is provided on the back side of the connecting plate 44 and is turned on by the weight of the stairs 41, the spacer made of, for example, nitrile rubber as shown in the first embodiment is detected with the connecting plate 44. You may make it provide between the switches 11.

  The scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. For example, in the above-described embodiment, the case where the detection switch mounting structure is provided on the back side of the floor cloth 1 has been described. However, the detection switch 11 mounting structure, for example, fixes the detection switch 11 so that it cannot be moved up and down. In addition, as long as the detection switch 11 can be pressed, the floor cloth 1 is not limited to the above. Moreover, each member which comprises the said attachment structure should not be restricted to the shape, quantity, positional relationship, etc. of above-described embodiment.

  In the temporary scaffolding, a plurality of detection switch mounting structures described above may be provided. In this case, it is desirable that the transmission frequency of the wireless transmitter 31 be different in each mounting structure.

DESCRIPTION OF SYMBOLS 1 Cloth with floor 2 Floor base material 11 Detection switch 12 Switch support part 13 Switch pressing part 14 Switch mounting plate 15 Base member 21 Rod-shaped member 22 Load receiving material 23 Spacer 31 Radio transmitter 32 Scaffold side alarm device 33 Controller 34 Office Side alarm 41 Stair 42 Tread 44 Connecting plate 45 Switch mounting plate

Claims (4)

A detection switch mounting structure for detecting a person who enters a temporary scaffold,
On the back side of the long scaffold plate having a hook for locking to the horizontal material of the temporary scaffold , a switch pressing part for pressing the detection switch supported by being vertically movable is provided,
The detection switch is
It consists of a tape switch that is in the form of a long plate extending in the longitudinal direction of the scaffold plate and has a ridge,
The switch pressing portion is
A load receiving material that extends in the longitudinal direction of the scaffold plate and whose upper surface is in contact with the back side of the scaffold plate;
It extends in the short direction of the scaffolding plate and supports the load receiving material on its lower side, and is constituted by a plurality of rod-like members for pressing the protrusions of the tape switch,
Each of the rod-shaped members is cylindrical and extends in a direction perpendicular to the longitudinal direction of the scaffold plate,
The plurality of rod-shaped members are arranged in parallel at a predetermined interval at the center of the load receiving material,
Below the switch pressing part, a switch support part for supporting the tape switch so as not to move up and down is provided,
The detection switch mounting structure, wherein a rod-like member of the switch pressing portion is displaced downward in response to a load applied to the scaffold plate, and the protrusion of the tape switch is pressed by this displacement. The detection switch mounting structure according to claim 1 , wherein an elastic member is interposed between the rod-shaped member and the detection switch. The scaffold board is a cloth with a floor,
The detection switch mounting structure according to claim 1 or 2 , wherein the switch support portion is fixed and supported by an extension portion that is folded and extended to an end portion along a longitudinal direction of the floor cloth. . The detection switch mounting structure according to any one of claims 1 to 3 ,
Transmitting means for transmitting a detection signal according to the output of the detection switch;
Receiving means for receiving a detection signal transmitted from the transmitting means;
A security system for a temporary scaffold, comprising alarm means for warning based on the reception means receiving the detection signal.

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