JP2016044387A - Bridge for vehicle traffic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bridge for vehicle traffic that does not require a sandbag at a time of initial inspection, allows a vehicle passageway to be secured promptly at a damaged site of the road, and allows the initial inspection to be performed precisely and efficiently.SOLUTION: A bridge for vehicle traffic includes a first bridge and a second bridge connected to each other foldably, the first bridge being installed horizontally on a first road surface and the second bridge allowing installation of a base edge thereof at a predetermined angle of inclination to the first bridge on a second road surface having a predetermined level difference with the first road surface. The first bridge and the second bridge have a frame angular adjustment member engaged at a connection part with each frame, thus allowing the first and the second bridges to be installed at a preset angle. A plurality of types of the angular adjustment member is set and identified.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a vehicle passage bridge for ensuring the passage of an emergency vehicle for initial movement inspection at a damaged site when a road is damaged due to a disaster such as an earthquake.

  In general, when a disaster such as an earthquake occurs and a road such as an expressway has a level difference, a crack, or a depression on the road surface or shoulder, it is necessary to check the situation of these damaged sites as soon as possible. The initial inspection is performed by driving an emergency vehicle and accurately grasping the situation.

  Conventionally, at the time of the initial check of the road by such an emergency vehicle, for example, when a step is generated on the road surface, the emergency vehicle cannot pass and it is difficult to perform the initial check by running the vehicle thereafter. Therefore, based on the information reported from the emergency vehicle, for example, the repair department prepares a predetermined number of sandbags and transports them to the damage site, and temporarily repairs the damaged parts with sandbags to temporarily allow the passage of emergency vehicles. . Note that there is no patent document relating to the emergency vehicle passage bridge at the time of such initial movement inspection.

  However, in such a method that allows the passage of emergency vehicles by stacking sandbags at the time of initial movement inspection, for example, after an emergency vehicle goes to the damage site and grasps the situation, a predetermined number of sandbags are received from the repair department. In order to cope with the situation, it takes time for the emergency vehicle to pass through the damaged site repaired with sandbags and to perform the initial inspection of the next road, and it may be difficult to quickly grasp the road situation in an emergency. Moreover, even if the emergency vehicle is loaded with sandbags in advance, it is difficult to respond accurately according to the degree of damage at the site of the damage, and it may be difficult to perform the initial inspection work quickly and accurately.

  The present invention has been made in view of such circumstances, and the purpose of the present invention is to quickly secure a vehicle passage on the road damage site without the need for a sandbag during the initial movement inspection, and to carry out the initial movement inspection work continuously. It is an object of the present invention to provide a vehicle traffic bridge that is possible and can be performed accurately and efficiently.

  In order to achieve this object, the invention according to claim 1 of the present invention is characterized in that both ends of a plurality of road bodies are fixed by welding with a predetermined gap between a pair of frames on both sides in the left-right width direction. The vehicle can pass through the upper surface of the road surface body, and includes a first bridge and a second bridge that are connected to each other in the longitudinal direction. The first bridge and the second bridge are connected to each other in a foldable manner, and The first bridge is installed on the road surface in a horizontal state, and the second bridge has a predetermined angle with respect to the first bridge, and the base end portion thereof is configured to be installed on a road surface different from the road surface. Features.

  The invention according to claim 2 is characterized in that the first bridge and the second bridge are set to a desired inclination angle by engaging an angle adjusting member with a connecting portion of each frame. To do. In this case, it is preferable that a plurality of types of the angle adjusting members are set and identified by the paint color, as in the invention described in claim 3.

  Furthermore, the invention described in claim 4 is characterized in that the length of the first bridge is set shorter than the length of the second bridge. The invention described in claim 5 is characterized in that the second bridge is divided into two parts so that they can be folded together. Furthermore, the invention described in claim 6 is characterized in that the frame and the road surface of the first bridge and the second bridge are made of an aluminum material.

  According to the first aspect of the present invention, the first bridge and the second bridge connected in the longitudinal direction are connected to each other so as to be foldable, and the first bridge is installed on the road surface in a horizontal state. The second bridge has a predetermined angle with respect to the first bridge, and its base end is configured to be installed on a road surface different from the road surface on which the first bridge is installed. By simply transporting and installing the 2nd bridge to the damage site with an emergency vehicle, the sandbag is not required at the time of the initial inspection, and the traffic path of the vehicle can be quickly secured at the road damage site. It becomes possible to do.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the first bridge and the second bridge engage the angle adjusting member with the connecting portion of each frame. Since the desired inclination angle is set, by preparing the desired angle adjustment member, each bridge can be set to the desired installation angle using this angle adjustment member, and the installation work of each bridge can be easily performed. In addition, the passage of the emergency vehicle can be secured more quickly, and safe passage is enabled by the plurality of angle adjusting members.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, a plurality of types of angle adjusting members are set and these are identified by the paint color. By using the adjustment member, it is possible to accurately respond to the damage site, and by identifying the angle adjustment member, the corresponding angle adjustment member can be engaged with the connecting portion without making a mistake. Adjustment work can be performed easily and in a short time.

  Furthermore, according to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, the length of the first bridge is set shorter than the length of the second bridge. For example, the first bridge can be reliably installed on a road surface with a high level difference, and the installation (tilt) angle of the bridge can be reduced by the long second bridge, so that the vehicle can smoothly pass through the damaged site. be able to.

  According to the invention described in claim 5, in addition to the effects of the invention described in claims 1 to 4, the second bridge is divided into two parts so that they can be folded, so that the length is long. By dividing the second bridge into two parts, the total length of each bridge is shortened, and transportation to the damaged site is facilitated, so that the initial inspection work can be performed more easily and accurately.

  Furthermore, according to the invention described in claim 6, in addition to the effects of the invention described in claims 1 to 5, since the frame and road surface of the first bridge and the second bridge are formed of an aluminum material, Each bridge can be quantified, and its transportation, installation, removal work, and the like are further facilitated, and the initial inspection work can be performed more easily and accurately.

The top view which shows one Embodiment of the bridge for vehicle traffic concerning this invention The side view Side view showing the same folded state (A) of the same angle adjusting member is a front view, (b) is a side view, and (c) is a bottom view. Longitudinal sectional view of the connecting part of the first bridge and the second bridge The plan view Front view showing another angle adjustment member Schematic side view of the installation state The side view similar to FIG. 3 which shows the modification of the vehicle traffic bridge concerning this invention

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
1 to 8 show an embodiment of a vehicle traffic bridge according to the present invention. As shown in FIGS. 1 to 3, a vehicle passage bridge 1 (hereinafter referred to as a bridge 1) includes a first bridge 2 and a second bridge 3 having a predetermined length, which are described later in the direction of emergency vehicle passage. Are connected in the longitudinal direction.

  Each bridge 2, 3 has a pair of frames 2 a, 3 a made of square pipes of a predetermined length provided at both ends in the left-right width direction orthogonal to the longitudinal direction, and both ends thereof have a predetermined gap. It comprises road surface bodies 2b, 3b, etc. composed of a plurality of plates and the like that are welded and fixed to the inner surfaces of the pair of frames 2a, 3a, and these are formed of an aluminum material to reduce the weight. At this time, the upper surfaces of the frames 2a and 3a are set to be slightly higher than the upper surfaces of the road surface bodies 2b and 3b, for example, so as to suppress the wheel from being removed from the bridge 1 of the passing vehicle.

  The length of the first bridge 2 (for example, 750 to 1000 mm) is set to approximately 1/3 of the length of the second bridge 3 (for example, 2250 to 3250 mm). The front end portion of the second bridge 3 can be rotated in the direction indicated by the arrow B in FIG. 2 by a connecting portion 4 having a rotation shaft 4a and a pair of brackets 4b, and can be folded as shown in FIG. . Further, an installation member 5 made of a rubber material or the like that can be installed in contact with a road surface of an expressway or the like is fixed to the lower surface of the rear end portion (base end portion) of each frame 3a of the second bridge 3 as necessary. ing.

  Further, an angle adjusting member 6 is engaged and disposed on the longitudinal end surfaces of the frames 2a and 3a of the connecting portion 4 of the bridges 2 and 3, respectively. As shown in FIG. 4, the angle adjusting member 6 is fixed to an upper surface plate 6a having a predetermined area, a block 6b that is welded and fixed to the back surface of the upper surface plate 6a, and an angle adjusting function, and a lower surface of the block 6b. And a locking plate 6c. The upper surface plate 6a, the block 6b, and the locking plate 6c are formed of a steel material, and a predetermined rigidity is ensured.

  The upper surface plate 6a of the angle adjusting member 6 is formed to have an area larger than the upper surface of the block 6b, and projects from the both side surfaces 6b1 and 6b2 of the block 6b by a predetermined dimension at least outward in the longitudinal direction of the bridge 1 and protrudes. An engaging surface 6a1 is formed on the back surface of the portion. In the block 6b, both side surfaces 6b1 and 6b2 in the longitudinal direction are formed as inclined surfaces having a predetermined inclination angle θ by making the upper and lower widths w1 and w2 different.

  Further, the locking plate 6c has one end bent upward (in the direction of the upper surface plate 6a) along predetermined side surfaces 6b1 and 6b2 so as to face one side surface 6b1 or side surface 6b2 of the block 6b. It has a part 6c1. At this time, the position of the locking portion 6c1 of the locking plate 6c is set to the position shown by the two-dot chain line in the same figure as the position shown by the solid line in FIG. It is formed in two different types.

  That is, the angle adjusting member 6 is set in two types in which the position of the locking portion 6c1 is different depending on the position of the block 6b with respect to the both side surfaces 6b1 and 6b2. For example, an angle adjusting member 6 having a locking portion 6c1 indicated by a solid line is engaged with the portion 4.

  The pair of left and right angle adjusting members 6 configured as described above are engaged with the connecting portion 4 as shown in FIGS. That is, the rear end portion of the pair of left and right frames 2a of the first bridge 2 has an engaging portion 7 that is integrally formed in a protruding state downward or provided by welding of another member. An engaging surface 7a made of an inclined surface is formed on the rear side in the longitudinal direction of the engaging portion 7, and a flat engaging surface 7b having a predetermined length is formed on the upper surface thereof.

  And in the connection part 4 of the said frames 2a and 3a, the said engaging part 7 is engaged between the latching | locking part 6c1 of the latching plate 6c of the angle adjustment member 6, and the one side surface 6b1 of the block 6b. Yes. At this time, for example, the engaging surface 7a of the engaging portion 7 of the frame 2a abuts and engages the side surface 6b1 of the block 6b of the angle adjusting member 6, and the engaging surface 7b of the engaging portion 7 is the same angle adjusting member. 6 is brought into contact with and engaged with the engaging surface 6a1 of the upper surface plate 6a from the back surface side. Further, for example, the front end portion of the frame 3 a of the second bridge 3 is engaged with the upper portion of the other side surface 6 b 2 of the angle adjusting member 6.

  As a result, the angle adjusting member 6 is engaged with the connecting portion 4 of the pair of frames 2a and 3a, and the engaging portion 7 of the frames 2a and 3a is in contact with and engaged with the angle when the frames 2a and 3a are connected. The angle corresponds to the inclination angle θ of the side surface 6b1 of the block 6b. In the above description, the engaging portion 7 is provided at the rear end portion of the first bridge 2, and the engaging portion 7 protruding downward is not provided at the front end portion of the second bridge 3. Of course, it is also possible to provide an engaging portion 7 equivalent to or similar to the engaging portion 7 at the front end portion of the two bridges 3.

  Further, in the angle adjusting member 6, the inclination angle θ of the side surfaces 6b1 and 6b2 of the block 6b is set to about 13 degrees, for example, but in the case of the bridge 1 according to the present invention, the inclination angle θ is set at the time of installation described later. A total of three angle adjustment members 6 different from each other are used. That is, the angle adjusting member 6 shown in FIG. 7A is configured such that the upper and lower widths w1 and w2 of the block 6b are set larger than the dimensions w1 and w2 of the angle adjusting member 6 shown in FIG. The inclination angle θ of the side surfaces 6b1 and 6b2 is set to about 20 degrees. Further, the angle adjusting member 6 shown in FIG. 7B is configured such that the upper and lower widths w1 and w2 of the block 6b are set smaller than the dimensions w1 and w2 of the angle adjusting member 6 shown in FIG. The inclination angle θ of the side surfaces 6b1 and 6b2 is set to about 8 degrees.

  The three angle adjusting members 6 are distinguished from each other by applying different paints, for example, red, yellow, and green, on the entire surface, and the height h of the step 8 at the damage site is described later. Accordingly, an angle adjusting member 6 having a predetermined inclination angle θ (predetermined color) is used. The three types of angle adjusting members 6 have an installation angle α with respect to the road surface at the time of installation shown in FIG. 8 of about 8 degrees, about 15 degrees, and about 21 depending on the inclination angle θ of the side surfaces 6b1 and 6b2 of the block 6b. The height h is set so as to correspond to the steps 8 having a height h of 300 mm, 500 mm, and 700 mm.

  Next, a method for installing (using) the bridge 1 will be described. First, in the storage state, the bridge 1 is in a state in which the first bridge 2 is folded with respect to the second bridge 3 to shorten its length (full length) as shown in FIG. When initial inspection is necessary, the bridge 1 in a folded state is loaded into an emergency vehicle or a transport vehicle connected to the emergency vehicle and transported to the site of damage. When arriving at the damaged site, the bridge 1 is lowered and a pair of bridges 1 are installed at the damaged site of the road, for example, as shown in FIG.

  At the time of installation, the folded first bridge 2 is rotated in the direction opposite to the arrow B (see FIG. 2) via the shaft 4a of the connecting portion 4 so that the angle with respect to the second bridge 3 is stepped at the damage site. A predetermined angle is set according to the height h of 8. In this angle adjustment, the approximate height dimension h of the step 8 is achieved, and one type of left and right pair of angle adjustment members 6 is selected from the three types of angle adjustment members 6 according to the dimension h. 6 and 6 are engaged with the pair of left and right connecting portions 4 of the first bridge 2 and the second bridge 3 constituting each bridge 1 as shown in FIGS.

  At this time, since the three types of angle adjusting members 6 are identified, the installation angle α of the pair of bridges 1 is selected by selecting the pair of angle adjusting members 6 of a predetermined color according to the height h of the step 8. Can be set to a desired angle. After setting the angles of the pair of bridges 1 in this way, as shown in FIG. 8 (only one bridge 1 is shown), the substantially flat first bridge 2 is placed on the road surface 8a on the higher side of the step 8, The installation member 5 at the base end portion of the second bridge 3 in the inclined state is placed and installed on the road surface 8b on the lower side of the step 8 (in the present invention, this road surface 8b is referred to as a road surface different from the road surface 8a).

  By performing this work on the pair of bridges 1 in accordance with the width of the wheel in the width direction of the emergency vehicle, the pair of bridges 1 for passing the emergency vehicle are installed at the step 8 portion, and installed at this predetermined interval. With the paired bridges 1, an emergency vehicle passage is secured on the step 8.

  In the installed state of the bridge 1, the first bridge 2 is shorter than the second bridge 3, but has a predetermined length. Therefore, the first bridge 2 has a predetermined length on the road surface 8 a on the higher side of the step 8. The first bridge 2 can be stably supported by the other road surface 8a, assuming that a part of the upper end portion of the step 8 is collapsed during passage of the emergency vehicle. Further, if the installation member 5 is provided at the base end portion of the second bridge 3 and is installed in contact with the road surface 8b, the rear end portion of the bridge 1 at that portion and the sliding in the front-rear direction are prevented. Thus, the bridge 1 can be stably installed on the step 8.

  That is, in the case of the bridge 1, the first bridge 2 having a short length and the second bridge 3 having a long length are connected so as to be foldable. The second bridge 3 is placed in a substantially horizontal state on the high road surface 8a, and the second bridge 3 is placed on the road surface 8b in which the height of the step 8 is not slipped. The bridge 3 is installed in an inclined state, and an emergency vehicle for inspection can pass through the step 8. When the bridge 1 is installed, the angle adjusting member 6 corresponding to the height h of the step 8 is selected from the three types of angle adjusting members 6 prepared in advance, and this is connected to the connecting portion 4 of the bridges 2 and 3. The bridge 1 having a desired installation angle α corresponding to the height h of the step 8 can be easily obtained.

  As described above, according to the bridge 1, the first bridge 2 and the second bridge 3 that are connected in the longitudinal direction are connected to each other so as to be foldable, and the first bridge 2 is in a horizontal state on the road surface 8 a of the step 8. Since the second bridge 3 has a predetermined installation angle α with respect to the first bridge 2 and the base end portion thereof can be installed on the road surface 8b of the step 8, the folded first bridge Simply load 2 and the second bridge 3 onto an emergency vehicle or a transport vehicle connected to the emergency vehicle, transport it to the site of damage, and install it at the site of damage. It is possible to perform the initial inspection work accurately and efficiently, such as being able to quickly set the traffic path.

  Moreover, since the 1st bridge 2 and the 2nd bridge 3 engage the predetermined angle adjustment member 6 with the connection part 4 of each flame | frame 2a, 3a, since the bridge 1 is set to the desired installation angle (alpha), By preparing a predetermined angle adjusting member 6, each bridge 1 can be set to a predetermined installation angle α by using this angle adjusting member 6, and the installation work of each bridge 1 can be easily performed to pass emergency vehicles. The road can be secured more quickly.

  In particular, since three types of angle adjusting members 6 are set and are identified by colors, an angle adjusting member having an inclination angle θ corresponding to the damage site can be obtained by alternatively using the three types of angle adjusting members 6. 6 can be accurately handled, and by identifying the angle adjusting means 6, the corresponding pair of angle adjusting members 6 can be engaged with each connecting portion 4 without making a mistake, and the angle adjusting operation can be performed. Can be carried out easily and in a short time.

  Furthermore, since the length of the first bridge 2 is set to be shorter than the length of the second bridge 3, while installing the first bridge 2 on the road surface 8a having a high step 8 reliably and stably, The installation angle α of the bridge 3 can be reduced by the long second bridge 3, and the vehicle on the bridge 1 can be more smoothly passed. In addition, since the frames 2a and 3a and the road surface bodies 2b and 3b of the first bridge 2 and the second bridge 3 are formed of an aluminum material, the bridges 2 and 3 can be measured, The installation work and the removal work of the bridge 1 become easier, and the initial inspection work can be performed more easily and efficiently.

  FIG. 9 shows a modification of the bridge according to the present invention. Hereinafter, the same parts as those in the above embodiment will be described with the same reference numerals. The feature of the bridge 1 of this modified example is that the second bridge 3 has a two-divided structure and can be folded together. That is, the second bridge 3 to which the first bridge 2 is foldably connected is constituted by the two second bridges 3-1 and 3-2, and can be folded by the connecting portion 4 provided at a substantially intermediate position therebetween. Connection, that is, the bridge 1 is composed of three bridges 2, 3-1, 3-2.

  In the case of this modification, for example, the length of the first bridge 2 is 750 mm, the length of the second bridge 3 bridge 3-1 is 1500 to 2000 mm, and the length of the bridge 3-2 is 750 to 1250 mm. Has been. In this modified example, the same effect as the bridge 1 of the above embodiment can be obtained, and the second bridge 3 is divided into two parts so that they can be folded. By dividing the bridge 3 into two parts, the total length of the bridge 1 when folded can be shortened (in the case of FIG. 8, the total length is 2000 mm). For example, it can be easily loaded on a transport vehicle and can cope with various step shapes. Thus, the initial inspection work can be performed more easily and accurately.

  In the above embodiment, the angle adjusting member 6 engaged with the connecting portion 4 of the first bridge 2 and the second bridge 3 is three types. However, the present invention is not limited to this, and for example, the angle adjusting member 6 may be one type, two types, or four or more types. In the above description, the case where the pair of bridges 1 are installed at the step 8 portion of the road with the predetermined installation angle α has been described. However, the bridge 1 according to the present invention does not use the angle adjusting member 6. In this case, since the first bridge 2 and the second bridge 3 can be set flat, it is urgent to install them in a flat state (angle 0) at a damage site such as a crack or a depression generated on the road. Of course, the present invention can also be applied to securing a vehicle passage.

  Furthermore, the form of the widths and lengths of the bridges 2 and 3 in the above embodiment, the configuration of the angle adjusting member 6 and the identification method thereof are also examples. For example, the surface of the upper surface plate 6a of the angle adjusting member 6 Appropriate configurations can be employed without departing from the gist of the present invention according to the present invention, such as identification by engraved with appropriate symbols and characters.

  The present invention is not limited to use for initial inspection of a road damage site such as an expressway due to the occurrence of an earthquake or the like, and can be used for all cases where various roads need to be inspected, such as during normal inspection.

DESCRIPTION OF SYMBOLS 1 ... Bridge for vehicle traffic 2 ... 1st bridge 2a ... Frame 2b ... Road surface 3 ... 2nd bridge 3-1, 3-2 ... Bridge 3a ... Frame 3b ... Road surface Body 4 ... Connection 4a ... Shaft 4b ... Bracket 5 ... Installation member 6 ..... Angle adjustment member 6a ... Upper plate 6a1 ... Engagement surface 6b ... Blocks 6b1, 6b2 ..... Inclined surface 6c ......... Locking plate 6c1 ......... Locking part 7 ......... Engaging part 7a, 7b ...・ ・ ・ ・ Engagement surface 8 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ step 8a, 8b ··· Road surface a ··· Traffic direction θ ··· Inclination angle α ··· Installation angle

Claims (6)

A pair of frames on both sides in the left-right width direction have predetermined gaps, and both ends of a plurality of road surface bodies are welded and fixed so that the vehicle can pass through the upper surface of the road surface body and are connected to each other in the longitudinal direction. Comprising a first bridge and a second bridge;
The first bridge and the second bridge are foldably connected to each other, the first bridge is installed on a road surface in a horizontal state, and the second bridge has a predetermined angle with respect to the first bridge. A vehicle traffic bridge characterized in that a base end portion can be installed on a road surface different from the road surface.   2. The vehicle passage bridge according to claim 1, wherein the first bridge and the second bridge are set to a desired inclination angle by engaging an angle adjusting member with a connecting portion of each frame. .   3. The vehicle traffic bridge according to claim 2, wherein a plurality of types of the angle adjusting members are set and are identified by a paint color.   4. The vehicle traffic bridge according to claim 1, wherein a length of the first bridge is set shorter than a length of the second bridge. 5.   The vehicle passage bridge according to any one of claims 1 to 4, wherein the second bridge is divided into two parts and is configured to be foldable with respect to each other.   6. The vehicle passage bridge according to claim 1, wherein the first bridge and the second bridge have a frame and a road surface body made of an aluminum material.

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