JP5927718B2 - Mobile safety equipment frame - Google Patents

Description

  The present invention relates to a facility for lifting heavy objects at a construction site and experiencing the danger and safety of working at high places, and more particularly to a frame that can be used as a mobile safety facility.

  For example, in order to prevent and control disasters at construction sites such as plant facilities, it is necessary to improve the sensitivity of danger such as what is dangerous or what is dangerous. From this point of view, the applicant of the present application proposes a safety experience facility (suspended load handling simulation training apparatus and suspended load handling education system) as disclosed in Patent Document 1, and actually provides the facility.

  In actual facilities, it is possible to embody the dangers expected at the time of a disaster, so a: you can experience the danger with your five senses, b: you can simulate the danger, c: you can learn countermeasures against the danger, d: multiple From the point of being able to experience the dangers of this, it has a positive effect on improving the sensitivity of danger.

  Furthermore, in consideration of the convenience of education for workers in remote locations, a mobile safety sensation equipment frame capable of simulating safe work near a remote work site as described in Patent Document 2 is provided. Have been developing.

Japanese Patent No. 3780877 Japanese Patent Application No. 2011-064455

  However, the movable safety sensation equipment frame described in Patent Document 2 requires manpower to unload the frame from the transport vehicle, and requires a crane (or a unic car equipped with a crane) to assemble the frame. For this reason, there is a need for a structure for a mobile safety experience facility that can be automatically assembled without the need for manpower or other power equipment.

  Therefore, in the present invention, human work for unloading and loading from a vehicle such as a truck can be minimized, and the frame itself has assembly power and a frame lifting mechanism so that automatic assembly is possible. The purpose is to provide a frame for a mobile safety experience facility.

  With a fixed safety experience facility installed at a training center, you can experience unloading to a high place and dropping heavy objects from a high place. For this reason, the structure which bears the equipment which satisfies the said item requires the structure which has considerable height. However, a tall structure is unsuitable for movement mounted on a vehicle or the like, and in the case of movement on land, there are many places where it cannot pass due to road conditions or the like. Therefore, in order to achieve the above object, a mobile safety sensation equipment frame includes a base slab on which structural members are installed, a stowable outrigger that supports the base slab at the installation site of the frame, and the base slab. A plurality of lower struts erected as base points, a plurality of upper struts (movable struts) that can be moved up and down along the lower struts, and at least one layer of floor slab supported by the plurality of upper struts (movable struts) (Upper floor slab), unloading means installed at a higher position than at least the basic slab, an actuator for projecting or storing the outrigger, and a chain drive mechanism for moving the plurality of upper struts (movable struts) up and down It is characterized by that.

  Further, in the mobile safety sensation equipment frame having the above-described features, a plurality of floor slabs (upper floor slabs) that are integrated with the plurality of upper struts capable of moving up and down are fixed to the base slab. It is arranged to be movable up and down along the surface surrounded by the lower struts, and installed on the fixed lower struts via a chain between the sprockets arranged at the top and bottom of the plurality of lower struts fixed to the foundation slab The rotation of the motor is transmitted, and the upper floor slab is moved up and down by winding up or down a chain connected to the lower part of the plurality of upper columns that can be moved up and down.

Also, mobile experiential safety equipment for Frames having the features as described above, the has a base slab the outrigger base for fixing the outrigger, the on the end on the outrigger base is pin-joined to the end portion of the hand An upper arm with the other end pin-joined to the leg ,
One end is pin-joined to the lower end of the outrigger base, and the other end is pin-joined to the leg below the pin-joining position of the upper arm , and one end is the outrigger based to the top and the pin junction, actuators the lower arm and the pin joined to the other end (e.g., a configuration with a hydraulic cylinder or a motor and screw rod) joined with said upper arm and said lower arm and the leg portion by expansion of the The outrigger is extended or stored by changing the angle. The pin bonding described in the present application refers to bonding in which a member and a member are bonded with a pin, and the bonding angle between the members can be changed with the pin as an axis.

Further, the mobile safety sensation equipment frame having the above-described features includes a rail provided on a lower surface of a beam that passes the unloading means to an upper end of the upper column that can be moved up and down, and a traverse to the rail. It is preferable to have a crane provided as possible.
By setting it as such a structure, it becomes possible to confirm the condition of the heavy article unloaded with the crane with the said upper floor slab.

Further, in the structure for a mobile safety sensation facility having the above-described features, the rail is configured to have a longer length in the longitudinal direction than the upper floor slab and the base slab, and at least one when viewed in plan. It is good to set it as the structure which a part protrudes from the said upper floor slab and the said foundation slab.
By setting it as such a structure, it becomes possible to unload the heavy article etc. which were placed on the outer side of the frame.

Furthermore, the mobile safety sensation equipment frame having the above-described features may be provided with an opening for unloading in the upper floor slab and the foundation slab.
With such a configuration, it is possible to lift a heavy object inside an area surrounded by a plurality of legs and columns constituting the frame. Therefore, it is possible to maintain the stability of the frame installation state when a heavy object is lifted.

  According to the mobile safety sensation equipment frame having the above-mentioned features, it is possible to reduce manual work related to the installation of the frame in a remote place without reducing the experience contents by the safety sensation equipment installed in a training center or the like. It is possible to simulate safe work while planning.

It is a figure which shows the front structure of the frame for mobile safety experience facilities which concerns on embodiment. It is a figure which shows the side structure of the structure for mobile safety experience facilities which concerns on embodiment. It is a side view which shows a part of installation process of the frame for mobile safety experience facilities. It is a front view which shows a part of installation process of the frame for mobile safety experience facilities. It is a front view which shows the process from conveyance of the structure for mobile safety experience facilities to installation. It is a figure which shows a mode that the lifting training through a safety belt is performed using the structure for mobile safety experience facilities.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment according to a mobile safety sensation equipment frame of the present invention will be described in detail with reference to the drawings. First, with reference to FIG. 1 and FIG. 2, the installation form of the frame for safe experience facilities which concerns on embodiment is demonstrated. In addition, FIG. 1 is a figure which shows the front structure of the frame for safety experience facilities, and FIG. 2 is a figure which shows the structure of the right side surface.

  In the safety experience facility as disclosed in Patent Document 1, a simulation practice concerning handling of a suspended load is mainly performed. Specifically, it is possible to recognize the impact force due to a fall accident when an operator is working with a safety belt, or to recognize the load on a sling rope due to the slant of the suspended load during sling work on the suspended load. For practical training.

A frame for a safety sensation facility (hereinafter simply referred to as a frame 10 ) capable of performing such various simulation exercises is at least a basic slab 12, four lower struts 30 erected on the basic slab 12, Four movable struts (upper struts) 28 that rise and fall along the lower strut 30, an upper floor slab 40 that rises and descends integrally with the movable struts 28, and a frame 10 on the top of the movable strut 28. It has a rail 50 for the crane that is passed in the longitudinal direction. The basic slab 12 has a substantially rectangular planar form, and the planar form is rectangular in the forms shown in FIGS. 1 and 2. By making the planar form of the foundation slab 12 rectangular, it becomes easy to mount the transportation vehicle 100 (see FIG. 5), which will be described in detail later, on the loading platform 104. This is because the mounting area can be effectively utilized without protruding from the loading platform 104.

An extendable outrigger 16 that supports the frame 10 is provided on the short side of the foundation slab 12. The joint angle of the arm 200 and lower arm 210 and the leg portion 230 on the outriggers 16 by changing the expansion and contraction of the hydraulic cylinder 190, and is configured to perform an overhang or storage of outriggers 16. When the outrigger 16 is extended, the support position for supporting the foundation slab 12 can be widened more than the width of the foundation slab 12, and the frame 10 can be prevented from falling. The outrigger 16 according to the embodiment includes an upper arm 200 whose one end is pin-joined to the top of the leg 230, a lower arm 210 whose one end is pin-joined to the leg 230 below the pin-joining position of the upper arm, An outrigger base 220 having the other end of the upper arm and the lower arm pin-connected, and a hydraulic cylinder 190 having one end pin-connected to the upper portion of the outrigger base 220 and the other end pin-connected to the lower arm. By extending and contracting the cylinder 190, the joint angle between the upper and lower arms 200 and 210 and the leg part 230 is changed to extend or store the leg part. Therefore, in the transportation mode, the outrigger 16 is closed and the leg portion 230 is moved and stored on the foundation slab 12, and in the installation mode, the outrigger 16 is opened and the leg portion 230 is protruded under the foundation slab 12. Can be supported.

  In the center of the foundation slab 12, a through hole (opening) 14 for passing a suspended load is provided. This is because it is used when a heavy object is unloaded by the crane 52, the details of which will be described later. A safety fence 26 (a safety fence installed on the upper floor slab is not shown) is installed around the through hole 14 to prevent a worker or the like from falling.

The foundation slab 12 is provided with a plurality of (four in the example shown in FIGS. 1 and 2) lower struts 30 erected upward.
In FIG. 3, taking the outrigger 16 on the right side of the drawing as an example, the state before being extended, that is, when stored (dotted line display) and after being extended (solid line display) is displayed in an overlapping manner, and the movement will be described below.
When the outrigger 16 is stored, the hydraulic cylinder 190 is contracted, and the pin-joined lower arm 210 is pulled toward the outrigger base 220, so that the joining angle of the lower arm 210, the upper arm 200, and the leg 230 is increased. The angle is acute and the upper and lower arms 200 and 210 are raised. In the figure, for the sake of explanation, the lower arm 210 and the upper arm 200 are not completely raised, but are in an intermediate position. In a state in which the hydraulic cylinder 190 is completely contracted, the lower arm 210 and the upper arm 200 are further in a nearly vertical state, and the width of the outrigger 16 is thereby reduced, and the storage space is also reduced.

On the other hand, when the outrigger 16 is extended, the hydraulic cylinder 190 is in the most extended state, the lower arm 210 is moved away from the outrigger base 220, and the joint angle between the upper arm 200, the lower arm 210 and the leg 230 is approximately 90 degrees. It becomes horizontal, the overhang of the leg 230 is maximized, and is in the most lowered state.
Thus, since the outrigger 16 can be extended and stored only by the operation of the hydraulic cylinder 190, the frame 10 can be installed (unloaded from the transport vehicle) without manual intervention.

Assembling of the frame 10 after the outrigger 16 is extended is performed by raising the upper column 28 with the upper floor slab 40 integrated along the lower column 30 as shown in FIGS. Specifically, the rotation of the motor 130 is transmitted to the drive sprocket 180 via the drive chain 140, and the hoisting roller 155 and the sprocket 150 on the shaft 170 coaxial with the drive sprocket 180 are rotated so as to rotate to the bottom of the upper column 28. By winding the fastened wire 157, the upper column 28 is raised. The rotation of the sprocket 150 is transmitted via the transmission chain 120 to the sprocket 150 disposed at the lower portion of the lower support column 30, and is further transmitted by the transmission chain 120 to the upper portion of the lower support column via the sprocket 150 positioned in the longitudinal direction of the frame 10. By rotating the sprocket 150 and rotating the hoisting roller 155 coaxial with the sprocket 150, all the hoisting rollers 155 can synchronize and raise the upper floor slab 40. The ascending amount of the upper floor slab 40 is detected by a sensor (not shown) at the position of the upper column 28 or the upper floor slab 40, and when the motor reaches the predetermined position, the rotation of the motor 130 is stopped.

The frame 10 according to the embodiment is provided with two floor slabs (the foundation slab 12 and the upper floor slab 40). The upper floor slab 40 is a floor disposed immediately above the foundation slab 12 whose details are described above. Similar to the basic slab 12, the upper floor slab 40 is provided with a through-hole (opening) 14 for allowing the suspended load to pass therethrough. This is for simulating the work at the opening that is often experienced in actual sites, and is, for example, the work of unloading heavy objects by the crane 52. Around the through-hole 14, a safety fence 26 (a part of the safety fence 26 of the upper floor slab is not shown in the drawing) for preventing a worker or the like from falling.

A rail 50 and a crane 52 traversing the rail 50 are provided below the beam 38 extending over the top of the upper column 28. The rail 50 is arranged along the longitudinal direction of the upper floor slab 40 and the foundation slab 12 and passes through the upper floor slab 40 and the upper part of the through hole 14 provided in the foundation slab 12. The rail 50 is configured to have a longer length in the longitudinal direction than the upper floor slab 40 and the foundation slab 12, and when the frame 10 is viewed in plan, at least one end thereof is the upper floor slab 40, And provided so as to protrude from the foundation slab 12. By setting it as such a structure, it becomes possible to unload the hanging load in the outer side of the frame 10 , and to perform a drop test (practice) and a suspension test (practice) in a protrusion part.

The crane 52 includes a trolley 54 and a hook 60. The trolley 54 is a moving means including a roller that can traverse the rail 50 described above. The crane 52 is a lifting means that includes a motor (not shown), a hook 60, a wire (not shown), and the like.
Further, the frame 10 having the basic configuration as described above can be provided with an elevator ladder (not shown), an auxiliary member for stabilizing the installation state, a brace, or the like as necessary.

In the frame 10 having such a basic configuration, various exercises can be performed by switching the experimental means to be installed. For example, as shown in FIG. 6, the crane 52 is moved to the protruding portion of the rail 50, the rope 240 is connected to the safety belt 250 of the worker 260 that has been waiting on the ground, and the hook 60 is engaged and pulled up. A safety belt hanging experience that verifies the biting of the worker into the body accompanying the mounting position of the safety belt 250 and the like can be performed. In addition, if a safety band hook (not shown) is hung on a safety fence (not shown) near the opening 14 in the upper floor slab 40 and a weight (not shown) is dropped from the opening 14, the hook is hooked. Safety belt fall verification training can be performed to demonstrate the danger of safety belt dropout etc.

The number of training items that can be experienced can be increased by adding various experimental means. About the experimental means to add, you may always have as an element which comprises the frame 10, and you may make it transport separately as needed.

The frame 10 having such a basic configuration can be mounted on the transport vehicle 100 as shown in FIG. 5 by lowering the upper column 28 and storing the outrigger 16 . In addition, although it can be mounted on a transport vehicle even when the upper column 28 is in an extended state, in order to stabilize the transport state and allow it to pass through an elevated state, the mounting state (transportation mode) It is desirable to make the height of the as low as possible. In addition, FIG. 5 is a figure which shows the front structure of the transportation form of a frame.

In the transport mode, as shown in FIG. 5 (S1), the upper floor slab 40 is lowered and loaded on the loading platform 104 of the transport vehicle 100 with the outriggers 16 stored. After the transportation to the destination is completed, the outrigger 16 is extended.
Overhang of the outriggers 16 is first allowed to stretch the hydraulic cylinder 190 of the outriggers 16 (refer to FIG. 3), the joint angle changing (gradually closer to 90 degrees) outriggers 16 of the upper and lower arms 200, 210 and the leg 230 Overhang (FIG. 5 (S2)). Next, the transport vehicle is moved to lower the frame 10 from the loading platform 104 (withdrawal of the transport vehicle), and then the motor 130 is rotated to raise the upper floor slab 40 (see FIG. 4 and the like) (FIG. 5 (S3)). ). When the upper floor slab 40 rises to a predetermined position, the rotation of the motor 130 is stopped to stop the upper floor slab 40 (FIG. 5 (S4)).
It is also possible to adjust the height by interposing a spacer on the ground contact surface of the leg portion 230 of the outrigger 16 according to the unevenness of the installation location.
Removal and movement of the frame 10 after the teaching practice are performed by performing the above procedures in reverse order.

10 ......... Frame, 12 ... ... Foundation slab, 14 ... ... Through hole, 16 ... ... Outrigger, 26 ... ... Safety fence, 28 ... ... Movable strut (upper strut), 30 ... ... Lower strut 38 ......... Beam, 40 ......... Upper floor slab, 50 ......... Rail, 52 ......... Crane, 54 ...... Trolley, 60 ......... Hook, 100 ...... Transportation vehicle, 104 ......... Loading platform, 120 ... Transmission chain, 130 ... Motor, 140 ... Drive chain, 150 ... Sprocket, 155 ... Winding roller, 157 ... Wire, 160 ... Ladder, 170 ... ... Shaft, 180 ... Drive sprocket, 190 ... Hydraulic cylinder, 200 ... Upper arm, 210 ... Lower arm, 220 ... Outrigger base, 230 ... Leg, 240 ... Rope 250 ... ... safety belt, 260 ......... worker.

Claims (3)

A foundation slab on which structural members of the frame are installed; a retractable outrigger that supports the foundation slab at the installation location of the frame; a plurality of lower struts erected on the basis of the foundation slab; and the lower struts A plurality of upper struts that can be moved up and down, at least one floor slab supported by the plurality of upper struts, unloading means installed at a height higher than at least the foundation slab, and overhanging or storing the outriggers And a chain drive mechanism for raising and lowering the plurality of upper struts. At least one floor slab that is integrated with the plurality of upper columns that can be moved up and down is arranged so as to be movable up and down along a surface surrounded by a plurality of lower columns that are fixed to the foundation slab, and fixed to the foundation slab. A chain connected to the lower part of the plurality of upper struts capable of moving up and down by transmitting the rotation of the motor installed on the fixed lower strut through a chain between the top and lower sprockets of the plurality of lower struts The movable safety sensation equipment frame according to claim 1, wherein the upper floor slab is moved up and down by rolling up or down. The have outrigger base for securing the outrigger to the base slab, the out is at an end portion on the Riga base pin junction ends of the hand, the upper arm that pin joints the other end to the legs,
One end is pin-joined to the lower end of the outrigger base, and the other end is pin-joined to the leg below the pin-joining position of the upper arm , and one end is the outrigger based to the top and the pin junction, the other end of the by changing the bonding angle between the upper arm and the lower arm and the leg portion by expansion and contraction of the lower arm and the pin junction with actuator performs overhang or housing of the outrigger The frame for a mobile safety sensation facility according to claim 1 or 2.

Images