JP2014145203A - Scissors type expansion structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a scissors type expansion structure as a structure easy in carrying, storage and expansion and stable in the expansion, with a simple structure.SOLUTION: A scissors type expansion bridge 1 expandable in the extension direction is provided with at least a pair of side frames 4 for mutually joining a plurality of frame elements 3 including two frame members 2 joined by a pin in a central part by the pin in a tip part of the frame members 2, a floor slab member 5 for mutually connecting at least one side end part of the two frame members 2 in the frame elements 3, folded up together with the side frames 4 in storage and becoming flat in extension and an expansion assisting device 23 for assisting the expansion and storage of the side frames 4 and the floor slab member 5.

Description

  The present invention relates to a scissors-type elastic structure including a scissors structure.

  Conventionally, there are many events that cause the bridge to be washed away by typhoons, heavy rains in the rainy season, heavy guerrilla rain, tsunami, and so on, and a technology for quickly restoring the bridge is required. In addition, it is important to build a bridge in a short time in order to reduce the construction cost of a small bridge.

  In the past, heavy steel temporary girder bridges and truss bridges have been transported and assembled in accordance with the situation at the disaster site so that private construction vehicles can pass through. In addition to disasters, the construction method of structures by the overhang method, vent support method, and extrusion method is common, and the construction period of the construction took several days.

  By the way, the deployment type scissors link for shear reinforcement like patent document 1 is known. This scissors link is not bulky during transportation, storage, etc., and can be deployed during use to have a desired configuration and length.

JP-A-11-210161

  The scissor mechanism as in Patent Document 1 has been difficult to apply to large buildings such as bridges. The reason for this is that there is little utility for the function, the manufacturing cost is high due to the accompanying control device, and if the control member is not inserted as a structure, it may become an unstable structure, and it has robust rigidity in one direction. However, it can be considered that weak directions tend to be weak in other directions. In addition, there is a problem in that it is difficult to design for structural strength such as stress concentration and wear due to the presence of a hinge portion (pivot) at the member intersection.

  The present invention has been made in view of the above points, and an object of the present invention is to obtain a scissors-type telescopic structure that has a simple structure, is easy to transport, store and deploy, and has a stable structure when deployed. is there.

  In order to achieve the above object, in the present invention, stability at the time of completion of deployment is obtained by a stowable floor slab member.

Specifically, in the first invention,
A scissors-type stretchable structure that can be stretched in the direction of extension.

And the scissors-type elastic structure is
A plurality of frame elements including two frame members that are pin-coupled at the central portion, at least a pair of side frames that are pin-coupled to each other at the tip of the frame member;
In the frame element, at least one side end portion of the two frame members is connected to each other, a floor slab member that is folded together with the side frame when stored and flat when extended, and
And a deployment assisting device for assisting the deployment and storage of the side frame and the floor slab member.

  According to said structure, a side frame is expand | deployed with a floor slab member by the expansion | deployment auxiliary | assistance apparatus. When the floor slab member becomes flat, the side frame stops extending and stabilizes. In this state, structures such as temporary bridges, temporary houses, and temporary tents are formed. The floor slab member not only secures rigidity but also serves as a fixed length stopper. On the contrary, when stored, the floor slab member may be folded together with the side frame, and transportation in the stored state is extremely easy.

In the second invention, in addition to the first invention,
The floor slab member becomes a bridge girder when extended.

  According to said structure, a floor slab member becomes a stable bridge girder, and an automobile, a person, etc. can pass now on it. For this reason, it is possible to quickly bring the bridge back to the disaster site during a disaster, and it is easy to remove.

In the third invention, in addition to the first invention,
The floor slab member constitutes the floor of a temporary house,
At the time of extension, at least the side frame is covered with a film that forms a partition with the outside air.

  According to the above configuration, if at least the periphery of the side frame is covered with a film at the time of extension, a temporary house and a temporary tent can be quickly installed. For example, rain and wind can be easily removed at a disaster site, and removal is easy.

In a fourth invention, in any one of the first to third inventions,
The lower side of the side frame is supported by a plurality of pontoons, and is extended by increasing the distance between adjacent pontoons during expansion.

  According to the above configuration, if a pontoon is connected and towed on the water surface, the distance between the pontoons is increased on the site and the floor slab member is leveled, a temporary bridge, a temporary house, etc. can be easily installed on the water surface. Can do.

In the fifth invention, in addition to any one of the first to third inventions,
Placed on the trailer bed,
It is extended at the place where the loading platform is installed.

  According to the above configuration, a temporary bridge, a temporary house, etc. can be provided very quickly and easily by loading and transporting the scissors-type telescopic structure in the stowed state on a trailer loading platform and installing and deploying the loading platform at the site. it can. You can store it at the time of removal and carry it out with a trailer.

In a sixth invention, in any one of the first to fifth inventions,
The deployment assist device is
A deployment cylinder for assisting deployment at the start of deployment of the side frame and floor slab member;
A deployment speed adjusting means for adjusting a deployment speed due to the weight of the side frame and the floor slab member;

  According to said structure, expansion | deployment of a side frame and a floor slab member is started by the cylinder for expansion | deployment, and a side frame and a floor slab member are expand | deployed by own weight after that. After that, the deployment speed adjusting means stably deploys without suddenly performing deployment, so that safety is ensured.

In a seventh invention, in any one of the first to sixth inventions,
The frame member and the floor slab member are light metal hollow members.

  According to said structure, since it is lightweight, it is easy to convey, and ensuring intensity | strength is also easy by setting it as high strength things, such as an aluminum alloy and a magnesium alloy.

In the eighth invention, in the first invention,
A solar or solar heat utilization system in which a solar panel having a mirror or a solar cell that collects sunlight during deployment is disposed between the frame members.

  According to said structure, since expansion | deployment, storage, and conveyance are very easy, it can be folded and stored easily at the time of emergency, such as a typhoon and a storm.

  As described above, according to the present invention, it is possible to obtain a scissors-type telescopic structure that has a simple structure, can be easily transported, stored, and deployed, and has a stable structure when deployed.

It is a front view which shows the expansion | extension state of the scissors type expansion-contraction bridge concerning Embodiment 1 of this invention. It is a side view which shows the state before the extension which the scissors-type expansion bridge stood up. It is a top view which shows the state before the extension which the scissors-type expansion bridge stood up. FIG. 2 is a view corresponding to FIG. FIG. 2 is a view corresponding to FIG. It is a front view which shows the extended chain scissors. It is a top view which shows the extended chain scissors. It is a front view which shows a pair of floor slab member, (a) shows at the time of expansion | extension, (b) shows the time of reduction start, (c) shows the time of reduction, respectively. The side view of an expansion-contraction unit is shown, (a) shows at the time of expansion, (b) shows at the time of reduction. It is a front view which shows the outline of the example of expansion | deployment by the suspension bridge which concerns on the modification 1. FIG. The outline of the example of expansion | deployment by the pontoon which concerns on the modification 2 is shown, (a) is a front view at the time of accommodation, (b) is a front view in process of expansion | deployment. It is a front view which shows the scissors type expansion-contraction bridge on the loading platform of the trailer which concerns on the modification 3. FIG. It is a perspective view which shows the developed temporary housing which concerns on Embodiment 2. FIG. It is a perspective view which shows the expanded sunlight (heat) utilization system which concerns on Embodiment 3. FIG. It is a perspective view which shows the stored sunlight (heat) utilization system which concerns on Embodiment 3. FIG. It is a perspective view which shows the developed sunlight (heat) utilization system which concerns on the modification of Embodiment 3. FIG.

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

(Embodiment 1)
FIG. 1 shows an extended state of a scissors-type expansion bridge 1 as a scissors-type expansion structure according to Embodiment 1 of the present invention. FIG. 4 shows a state in which the scissors-type expansion bridge 1 is stored, and FIGS. 5 shows a state after standing up and before extension. The scissors-type expansion bridge 1 is configured to be extendable and contractible in the extending direction. Specifically, as shown in FIGS. 6 and 7, the scissors-type telescopic bridge 1 includes a plurality of frame elements 3 including two frame members 2 that are pin-coupled at the center portion. There is provided at least a pair of side frames 4 which are pin-coupled to each other at the front end portion. Each side frame 4 includes an even number of frame members 2 and is arranged in parallel to each other. The frame member 2 is made of, for example, a lightweight and rigid hollow aluminum alloy extruded material, and has pin insertion holes 2a at the center and both ends, and a plurality of through holes 2b for weight reduction. In FIG. 1 to FIG. 5, the number of the frame members 2 and the like is limited for simplification, but the number is not limited.

  As shown in FIG. 6, one frame element 3 includes two frame members 2, and a central axis 2 c extending horizontally through the central pin insertion hole 2 a passes through the central axis 2 c. The two frame members 2 are connected so as to be swingable like scissors.

  Furthermore, the horizontal axis | shaft 2e extended in the width direction of the scissors-type expansion-contraction bridge 1 is connected with the pin insertion hole 2a of the edge part arrange | positioned up and down, respectively. In this way, the frame element 3 is connected to another frame element 3 adjacent in the extending direction and is also connected to the frame element 3 arranged to face in the width direction.

  In each frame element 3, a floor plate member 5 having a rectangular plate shape that is long in the extending direction is connected to the horizontal shaft 2 e at the lower end (omitted for simplification in FIGS. 2 and 3). . The floor slab member 5 includes, for example, a hollow magnesium alloy, an extruded material such as an aluminum alloy, or a molded product as a structural member. For example, as shown in FIG. 8, in one of the pair of floor slab members 5, one end in the extension direction is rotatably connected to the horizontal shaft 2e, and the hinge portion 5a provided at the other end is horizontally extended. It is fixed by being caught on the shaft 2e. At the time of extension, a plurality of floor slab members 5 are arranged so that adjacent floor slab members 5 are horizontally continuous. When the floor slab members 5 are horizontal, they serve as a bridge girder, on which pedestrians and vehicles can pass. Yes. Although it is ideal that all the floor slab members 5 become flat when extended, they may be slightly inclined. In the present embodiment, a pair of floor slab members 5 is provided in the width direction, and the distance between the floor slab members 5 is matched to the width of the vehicle tire (vehicle width), so that the vehicle can pass over the floor slab members 5. As shown in FIG. 7, the pair of floor slab members 5 in the width direction are reinforced by being connected to, for example, an anti-tilt member 5b arranged in an X shape. However, the anti-tilt member 5b may be omitted. . As shown in FIG. 9A, for example, one ordinary automobile C can pass through the extended chain scissors 6 during extension. Note that the size of the chain scissors 6 in the width direction may be increased so that a plurality of ordinary automobiles C can pass simultaneously. In that case, a plurality of floor slab members 5 are parallel to at least the tire portion of the ordinary automobile C. Should be provided.

  On the other hand, as shown in FIG. 8C and FIG. 9B, the floor slab member 5 is folded together with the frame member 2 so as not to interfere with the frame member 2 at the time of reduction. .

  In the scissors-type expansion bridge 1, a plurality of frame elements 3 including such a frame member 2 and a floor slab member 5 are connected in accordance with the installation location. In the drawing, the number of the frame elements 3 is limited, but actually, more frame elements 3 can be connected. As shown in FIG. 1 and the like, one end of a chain scissors 6 including a frame element 3 composed of the plurality of frame members 2 and the floor slab member 5 is fixed to the gantry frame 10. The gantry frame 10 is installed on the installation surface P of the scissors-type expansion bridge 1 and is made of, for example, a welded structure assembled in an L shape in a side view, and the frame member 2 extends in a vertical part when deployed. The guide member 11 of the rail which determines a direction is provided. Although not shown in detail, a roller 11a provided on the most proximal frame member 2 moves up and down in the vertically extending guide member 11 to control the extending direction of each frame element 3.

  The gantry frame 10 is connected to a rectangular frame-like base 12 that is long in the extending direction so as to be raised and lowered. Specifically, one end of the hoisting cylinder 13 is connected to the base end side of the base 12 in the extending direction, and the other end of the hoisting cylinder 13 is connected to the gantry frame 10. The base end side of the gantry frame 10 is rotatably connected to the rotation shaft 12 a of the base 12. As a result, the gantry frame 10 can be raised and lowered with respect to the base 12 as the raising and lowering cylinder 13 extends and contracts.

  A fixing portion 18 for connecting and fixing the gantry frame 10 is provided on the distal end side of the base 12 in the extending direction. The presence or absence of the fixing portion 18 and its shape are not particularly limited.

  The scissors-type expansion bridge 1 includes a deployment assisting device 23 that assists the deployment and storage of the chain scissors 6. Specifically, on both sides in the width direction of the gantry frame 10, deployment speed adjustment cylinders 14 are provided as deployment speed adjustment means, and these deployment speed adjustment cylinders 14 deploy and store the chain scissors 6. It is configured to assist. For example, a first sprocket 15 is provided at the tip of the deployment speed adjustment cylinder 14, and is extended between the second sprocket 16 fixed to the lower side of the gantry frame 10 by expanding and contracting the deployment speed adjustment cylinder 14. The distance can be changed. A deployment chain 17 is hung on the first sprocket 15 and the second sprocket 16, one end of the deployment chain 17 is fixed to the gantry frame 10, and the other end is the second frame from the base end side in the extension direction. The tip of the member 2 is connected.

  Further, the deployment assisting device 23 includes, for example, one deployment cylinder 19. A cylinder tube of the developing cylinder 19 is fixed to the base 12, and an arm 19a extending vertically is projected from the tip of the rod. The arm 19a pushes out the second horizontal shaft 2e from the base end side in the extension direction when the developing cylinder 19 is contracted, whereby extension of the chain scissors 6 is started. After that, the chain scissors 6 are developed by their own weight.

  At the time of extension due to its own weight, the developing chain 17 is pulled, and the developing speed adjusting cylinder 14 is extended to allow the side frame 4 to open. The deployment speed is adjusted by controlling the flow rate of the hydraulic oil from the deployment speed adjustment cylinder 14 at this time by a hydraulic device (not shown) (so-called meter-out control). At the time of storage, the operating oil may be sent to the deployment speed adjusting cylinder 14 to forcibly reduce it, and the opened frame member 2 may be closed by attracting the deployment chain 17. By adjusting the multiplication factor of the developing chain 17, the speed and distance of the developing chain 17 can be adjusted even when the stroke of the developing speed adjusting cylinder 14 is limited.

  For example, an electric hydraulic unit (not shown) may be separately prepared as a hydraulic source for the undulation cylinder 13, the deployment speed adjustment cylinder 14, and the deployment cylinder 19.

  A deployment sheave 20 is provided at the upper end of the gantry frame 10, and a wire 22 of a manual winch 21 placed on the installation surface P is hung on the deployment sheave 20. It is connected to one end of the frame member 2 at the front end. For example, when the chain scissors 6 are extended by their own weight, the unfolding speed due to the weight of the chain scissors 6 can be adjusted also by unwinding the manual winch 21, so that it can also be used as a unfolding speed adjusting means. The manual winch 21 may be constituted by a hydraulic type or an electric type, but if it is a manual type, the manual winch 21 is advantageous in that it can be deployed by human power. If it is an electric winch, the car battery can also be used.

  Next, the operation of the scissors-type expansion bridge 1 of Embodiment 1 will be described.

  First, in the storage state shown in FIG. 4, the gantry frame 10 is fixed to the base end side in the extending direction of the base 12. The hoisting cylinder 13, the deployment speed adjusting cylinder 14, and the deployment cylinder 19 are in a contracted state. By keeping these in a reduced state, the storage state can be maintained. In addition, the locking device for maintaining an accommodation state separately may be provided. In this compactly accommodated state, it can be transported by trailers, ships, large helicopters, and the like.

  Next, a separately prepared hydraulic unit is connected to the hoisting cylinder 13, the deployment speed adjusting cylinder 14, and the deployment cylinder 19.

  Next, the hoisting cylinder 13 is gradually extended to stand the gantry frame 10 as shown in FIG. In this state, the chain scissors 6 remain reduced, and the floor slab member 5 is folded as shown in FIGS. 8C and 9B.

  Next, hydraulic oil is fed into the developing cylinder 19 and gradually expanded. Then, the horizontal shaft 2e is forcibly slid by the arm 19a of the developing cylinder 19 and the developing chain 17 is fed out. At the same time, the wire 22 is fed out from the manual winch 21. The deployment speed is controlled by adjusting the amount of hydraulic oil discharged from the tube rod side of the deployment speed adjustment cylinder 14. Thereby, the space | interval between all the frame members 2 spreads gradually, and the floor slab member 5 rotates centering on the horizontal axis 2e. In this way, the side frame 4 and the floor slab member 5 are stably and gradually extended without spreading at a stretch.

  And as shown to Fig.8 (a), when the hinge part 5a of the floor slab member 5 engages with the horizontal axis | shaft 2e and becomes flat, expansion | extension will stop and will be stabilized. At this time, the floor slab member 5 serves as a fixed length stopper. In this state, a temporary bridge is formed. Thereby, the floor slab member 5 becomes a stable bridge girder, and a normal automobile C or a person can pass as shown in FIG. For this reason, it is possible to quickly bring the bridge back to the disaster site during a disaster, and it is easy to remove.

  On the contrary, at the time of storage, the floor slab member 5 is moved as shown in FIGS. 8B and 8C while manually winding the manual winch 21 or forcibly reducing the deployment speed adjusting cylinder 14, for example. Folding together with the side frames 4 is easy and easy to deploy and store. If such a manual type winch is used, it can be deployed and stored by human power.

  In the present embodiment, the frame member 2 and the floor slab member 5 are lightweight and highly rigid structures made of an aluminum alloy, a magnesium alloy, or the like. Therefore, the frame member 2 and the floor slab member 5 are easy to transport and secure strength.

  Therefore, according to the scissors-type expansion bridge 1 according to the present embodiment, it is possible to obtain the scissors-type expansion bridge 1 with a simple structure, which can be easily transported, stored, and deployed, and has a stable structure when deployed.

  Since the scissors-type expansion bridge 1 of this embodiment is manufactured in advance in a factory or the like, it has high quality and completeness, and can be folded compactly, so that it is very easy to transport.

  In addition, it is possible to increase the options of countermeasures for difficult restoration work at the disaster site, and to improve the site suitability.

  In addition, when repairing the life of an aging bridge in a life-prolonging manner, a large-scale repair work for a main structure such as a main girder usually becomes a problem because the bridge is closed. However, if the scissors-type telescopic bridge 1 having the chain scissors 6 of the present embodiment is used, at the place where the reaction force on the pier or abutment can be obtained using the telescopic structure of the bridge body after restricting the vehicle. By fixing and temporarily reinforcing the bridge, it is possible to relieve the burden of an aging bridge and to repair the bridge at the same time.

  In addition, the use of this embodiment for fishing ports and harbor piers is of great value. In other words, it is convenient for managers and users that it is possible to avoid damage due to pier use restrictions, typhoons, storm surges, etc., and that it can be installed only when using the bridge.

  Furthermore, when an evacuation route is secured due to a fire in a mid-to-low-rise building, if the present embodiment is provided so that an evacuation bridge can be built up to an adjacent building, the effect is great in an emergency.

-Modification 1-
FIG. 10 is a front view illustrating an outline of a development example of the scissor-type telescopic bridge 101 according to the first modification of the first embodiment by the suspension bridge 130. In the following modifications and Embodiments 2 and 3, the same parts as those in FIGS. 1 to 9 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In this modified example, for example, one end side of the chain scissors 6 is fixed to one suspension bridge 130, a wire 122 is hung on the deployment sheave 120 provided at the other end, and the distal end side is deployed to the deployment sheave of the other suspension bridge 130. When the chain scissors 6 are extended by being hung on 120 and pulled with a crane or a winch, and the other end side is fixed to the other suspension bridge 130, the scissors-type expansion bridge 101 is temporarily installed.

  The wire 22 may be pulled directly with a crane or the like without hanging the wire 122 on the unfolding sheave 120 of the other suspension bridge 130.

  With this configuration, there is no need for temporary assembly of the main body or a temporary yard for the length of the bridge, which has been a problem in the field so far. It is possible to build the main body of the bridge in a short time.

-Modification 2-
FIG. 11: shows the outline of the expansion example of the scissors-type expansion-bridge 201 by the pontoon 230 which concerns on the modification 2 of Embodiment 1, (a) is a front view at the time of accommodation, (b) is a front view in process of expansion | deployment It is.

  The lower end side of the side frame 4 is supported by a plurality of pontoons 230 (a flat bottom boat, also called a flat bottom boat or a pier boat), and the chain scissors 6 are extended by increasing the distance between the adjacent pontoons 230 during extension. The

  In this modification, as shown in FIG. 11A, the pontoon 230 is connected and towed on the water surface 231 by a tugboat or the like, and the distance between the pontoons 230 is increased on the site to connect the floor slab member 5 horizontally. For example, a temporary bridge can be easily installed on the water surface 231 as shown in FIG. At this time, no pier is required.

  In this way, it is possible to easily construct a bridge system in a river or a port by linking a plurality of pontoons 230 with the chain scissors 6. By integrating several pontoons 230 in a compact manner, it is possible to easily construct a large ship bridge system. With this system, it is possible to secure an evacuation route in a large-scale flood.

  As an application of this modified example, when “passing” is necessary for the purpose of berthing from the ship (particularly assuming that the harbor facilities are also severely damaged), the compact chain scissors 6 are equipped on the ship. As a result, a flexible operation is possible, and it is possible to cross over safely when moving from one ship to another.

-Modification 3-
FIG. 12 is a front view illustrating a state in which the scissor-type telescopic bridge 1 is provided on the loading platform 331 of the trailer 330 according to the third modification of the first embodiment.

  In this modification, the base 12 including the gantry frame 10 is placed on the loading platform 331 of the trailer 330. The cargo bed 331 is carried to the site by a trailer 330 and is extended at the place where the cargo bed 331 is installed.

  As described above, in this modified example, the scissors-type expansion bridge 1 in the housed state is loaded and transported on the loading platform 331 of the trailer 330, and the loading platform 331 is installed and deployed at the site, thereby lowering the mounting frame 10 and the like to the ground. And a temporary bridge can be provided very quickly and easily.

  At this time, since the loading platform 331 serves as a counterweight and an anchor of the scissors-type expansion bridge 1, it is desirable to provide an outrigger or the like.

(Embodiment 2)
FIG. 13 shows a temporary house 401 as a scissors-type stretchable structure according to Embodiment 2 of the present invention, which is different from Embodiment 1 in that the use of the scissors-type stretchable structure is different.

  The temporary house 401 of this embodiment includes the same chain scissors 6 as in the first embodiment. In the present embodiment, the configuration of the gantry frame 10, the deployment assisting device 23, and the like is not necessarily required.

  In the present embodiment, the extended floor slab member 5 constitutes the floor of the temporary house 401. When there is a gap between the parallel floor slab members 5 as in the first embodiment, a flat heat insulating plate or the like may be provided thereon.

  And between the side frames 4 and a ceiling are covered with the film | membrane 430 which comprises a partition with external air at the time of expansion | extension. Both side surfaces are also covered with the film 431. These membranes 430 and 431 may be configured as, for example, a bellows-shaped hood (not shown) disposed on the truck bed. The The membranes 430 and 431 may be disposed inside the side frame 4 as illustrated in FIG. 13, but may be disposed outside the side frame 4. In any case, it is preferable to arrange in consideration of interference with the side frame 4 and the floor slab member 5 during storage.

  Also in the present embodiment, if the periphery of the side frame 4 is covered with the film 430 at the time of extension, the temporary housing 401 can be quickly built, so that, for example, rain and wind can be easily overcome at the disaster site, and removal is also easy.

  If the side film 431 is not provided, it can be used as a temporary tent such as a simple tent or a parking tent.

(Embodiment 3)
14 and 15 show a sunlight (heat) utilization system 501 that uses sunlight or solar heat as the scissors-type stretchable structure according to Embodiment 3 of the present invention. Different from Forms 1 and 2.

  That is, in this embodiment, the curved mirror 530 is disposed between the frame members 5. And the sunlight condensed with the mirror 530 at the time of expansion | deployment shown in FIG. 14 is condensed on the horizontal axis 2e in front. Thermal energy collected by providing a hot water pipe on the horizontal shaft 2e can be used. The units to which the mirrors 530 are attached can be arranged in the extending direction of the chain scissors 6. And as shown in FIG. 15, it is good to prevent the mirror 530 from interfering with another member at the time of accommodation. Since the floor slab 505 of this embodiment does not pass a vehicle or a person, what is necessary is just to make it simple and lightweight.

  In addition, as shown in FIG. 16, for example, three mirrors 530 can be arranged in parallel in the width direction. And you may enable it to change direction according to the position of the sun.

  On the other hand, a solar panel including a solar cell may be used instead of the mirror 530. In this case, wiring for using the electricity generated instead of the hot water pipe may be provided.

  With this configuration, it can be easily folded and stored in an emergency such as a typhoon or storm. Also, deployment, storage and transportation are extremely easy.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the first embodiment, the deployment speed adjusting cylinder 14 using the deployment chain 17 has been described as the deployment assisting device 23. However, in the case of the small scissors-type telescopic bridge 1, the deployment chain 17 and the deployment are described. Deployment and storage can be performed only by the manual winch 21 without providing the speed adjusting cylinder 14.

  The frame member 2 and the floor slab members 5, 505 are lightweight and advantageous as long as they are aluminum alloys or magnesium alloys, but may be composed of other stainless steel plates or high strength steel plates.

  In the first embodiment, the pair of floor slab members 5 are engaged with or detached from the horizontal shaft 2e using the hinge portion 5a. However, each floor slab member 5 is separated from the horizontal shaft 2e. It may be possible to engage or disengage. By doing so, the size adjustment of the scissors-type expansion bridge 1 becomes easy.

  In the above embodiment, the floor slab member 5 is provided only on the lower side, but a member corresponding to the floor slab member 5 may also be provided on the upper side. By covering the entire ceiling side with the upper member, a scissors-type stretchable structure with a roof can be obtained, which is effective, for example, in snowy countries. In addition, for example, a member corresponding to the floor slab member 5 may be provided only on the upper side so that the vehicle or the like can pass therethrough. In this case, the height restriction of the passing vehicle is relaxed.

  Further, if a wheel is provided on the horizontal shaft 2e on the distal end side in the extension direction, the chain scissors 6 may be smoothly deployed.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

  As described above, the present invention is useful for scissors-type expansion structures such as scissors-type expansion bridges, temporary houses, and temporary tents.

1 Scissors-type expansion bridge (scissors-type expansion structure)
2 Frame members
2a Pin insertion hole
2b Through hole
2c Center axis
2e Horizontal axis
3 Frame elements
4 Side frame
5 Floor slab members
5a Hinge part
5b Anti-tilt material
6 Chain Scissors
10 Mounting frame
11 Guide members
12 base
13 Undulating cylinder
14 Cylinder for deployment speed adjustment (deployment speed adjustment means, deployment assistance device)
15 First sprocket
16 Second sprocket
17 Chain for deployment (deployment speed adjusting means, deployment assist device)
18 Fixed part
19 Cylinder for deployment
19a arm
20 Sheave for deployment
21 Manual winch (deployment aid)
22 wires
23 Deployment Auxiliary Device 101 Scissors-type telescopic bridge (scissors-type telescopic structure)
120 Sheaves for deployment 122 Wire 130 Bridge 201 Scissors-type expansion bridge (scissors-type expansion structure)
230 Pontoon 231 Water surface 330 Trailer 331 Loading platform 401 Temporary house (scissors-type telescopic structure)
430 Membrane 431 Membrane 501 Sunlight (heat) utilization system (scissors-type telescopic structure)
530 mirror (solar panel)

Claims (8)

It is a scissors-type elastic structure that can expand and contract in the extension direction,
A plurality of frame elements including two frame members that are pin-coupled at the central portion, at least a pair of side frames that are pin-coupled to each other at the tip of the frame member;
In the frame element, at least one side end portion of the two frame members is connected to each other, a floor slab member that is folded together with the side frame when stored and flat when extended, and
A scissors-type telescopic structure, comprising: a deployment assist device that assists in deployment and storage of the side frame and the floor slab member. In the scissors type elastic structure according to claim 1,
The scissors-type telescopic structure, wherein the floor slab member becomes a bridge girder when extended. In the scissors type elastic structure according to claim 1,
The floor slab member constitutes the floor of a temporary house or temporary tent,
A scissors-type telescopic structure, wherein at least the side frame is covered with a film that forms a partition with outside air when extended. In the scissors type expansion-contraction structure as described in any one of Claims 1 thru | or 3,
A scissors-type telescopic structure, wherein a lower end side of the side frame is supported by a plurality of pontoons, and is extended by increasing a distance between adjacent pontoons during expansion. In the scissors type expansion-contraction structure as described in any one of Claims 1 thru | or 3,
Placed on the trailer bed,
A scissors-type telescopic structure, wherein the scissors-type telescopic structure is extended at a place where the loading platform is installed. In the scissors type expansion-contraction structure as described in any one of Claims 1 thru | or 5,
The deployment assist device is
A deployment cylinder for assisting deployment at the start of deployment of the side frame and floor slab member;
A scissors-type telescopic structure, comprising: a deployment speed adjusting means for adjusting a deployment speed by the weight of the side frame and the floor slab member. In the scissors type expansion-contraction structure as described in any one of Claims 1 thru | or 6,
The scissors-type telescopic structure, wherein the frame member and the floor slab member are light metal hollow members. In the scissors type elastic structure according to claim 1,
A scissors-type telescopic structure, characterized in that it is a solar or solar heat utilization system in which a solar panel having a mirror or a solar cell for concentrating sunlight is deployed between the frame members.

Images