JP2005112575A - On-vehicle bridge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent longitudinal and lateral slips of a vehicle to be loaded without being affected by rainwater and improve strength and increase service life of an anti-slip part. <P>SOLUTION: This on-vehicle bridge is provided with a body frame 10 in which an upper face part 11 and a lower face part 12 are mutually connected by a sash 13 and which is formed by an aluminum-made pushing-out extrusion, an aluminum-made getting-on member 20 joined with one end part of the body frame 10, and an aluminum-made hook 30 joined with the other end part of the body frame. The aluminum-made anti-slip part 40 for reinforcing the upper face part 11 and preventing longitudinal and lateral slip of the vehicle to be loaded is formed in the upper face part 11 of the body frame 10. The anti-slip part 40 is formed by a plurality of longitudinal channels 41 formed simultaneously with extrusion and a plurality of inclined channels 42 crossing the longitudinal channels 41 by grooving machining on a surface of the upper face part 11 formed to have large wall thickness for the lower face part 12. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an in-vehicle bridge that is used when loading and unloading construction machines such as bulldozers and shovel cars, and agricultural machines such as tractors and tillers from a ground surface onto a truck bed.

Conventionally, as this type of vehicle-mounted bridge, it is formed of an extruded aluminum member whose upper and lower parallel parts are connected to each other by a crosspiece, and a crosspiece on one end side is cut off to incline a part of the lower surface part. A main body frame, a riding member formed by an aluminum extruded shape joined to one end of the main body frame, and an aluminum extruded shape joined to the other end of the main body frame. There is known an in-vehicle bridge including a hook having an engaging portion that is hooked on a receiving hook of a cargo bed, and a rubber base plate stretched on an upper surface of a main body frame (see, for example, Patent Document 1). .
Japanese Laid-Open Patent Publication No. 9-118267 (Claims, FIG. 2) Further, instead of a rubber base plate, a wood base plate stretched on the upper surface of the main body frame is also known.

  However, in the case of a structure in which a rubber floor board or a wood floor board is stretched on the upper surface of the main body frame, if it rains and the upper surface of the floor board gets wet with rain water, the loaded vehicle will easily slip and the vehicle will There was a danger of coming off the bridge.

  In addition, since many of the vehicles to be loaded are heavy and have steel crawlers, low-strength rubber floor boards and wood floor boards are easily damaged, and have to be replaced when used for a long time. Moreover, since the floorboard discarded by re-covering cannot be recycled, it must be disposed of, resulting in a waste of resources. In particular, in the case of rubber floor boards, there is a risk of environmental damage during disposal.

  The present invention has been made in view of the above circumstances, and can prevent a side slip of a vehicle loaded without being affected by rainwater, improve the strength of the anti-slip portion and increase the life of the vehicle, and The object is to provide an in-vehicle bridge that can be recycled.

  In order to solve the above-mentioned problems, the vehicle-mounted bridge according to the present invention is formed of an aluminum extruded shape member in which an upper surface portion and a lower surface portion that are parallel to each other are connected by a crosspiece. A body frame having a part thereof inclined, a riding member formed of an aluminum extruded shape joined to the one end of the body frame, and an aluminum extrusion joined to the other end of the body frame Assuming an in-vehicle bridge that is formed of a profile and has a hook having an engaging portion that is hooked to a receiving hook of a truck bed, and reinforcing the upper surface portion on the upper surface portion of the main body frame, An aluminum non-slip portion that prevents vertical and side slip of a vehicle to be loaded is formed (claim 1). Here, aluminum is meant to include an aluminum alloy.

  In the present invention, the anti-slip portion may have any structure or form as long as it is made of aluminum having a function of reinforcing the upper surface portion of the main body frame and preventing vertical and side slip of the vehicle to be loaded. A plurality of vertical grooves formed simultaneously with the extrusion on the surface of the upper surface portion formed thicker than the lower surface portion, and a plurality of inclined grooves intersecting the vertical grooves by grooving (Claim 2).

  Further, an anti-slip portion may be formed by fixing an aluminum net-like panel to the surface of the upper surface of the main body frame by welding (Claim 3), or the aluminum net-like panel may be attached to the main body frame. The anti-slip portion may be formed by detachably fixing to the surface of the upper surface portion by a fixing member. In this case, the net-like panel can be formed by an expansion panel formed by bonding a plurality of strip-like plates in a staggered manner and then pulling in a direction perpendicular to the bonding surface. Further, it is preferable that the fixing member is composed of a U bolt that presses a part of the mesh panel from above and a nut that is screwed to the U bolt.

  In addition, a plurality of non-slip members made of cast aluminum are arranged in a dotted pattern on the surface portion of the upper surface where reinforcing ridges formed on the lower surface of the upper surface are located at the same time as extrusion, and can be attached and detached with a fixing screw member The anti-slip part may be formed by being fixed to (Claim 5). In this case, it is preferable to form the fixing screw member with a tapping screw.

  In addition, the aluminum anti-slip member having a corrugated cross section is disposed in a dotted pattern on the surface portion of the upper surface where the reinforcing protrusions formed on the lower surface of the upper surface are located at the same time as extrusion, and is fixed by welding. The anti-slip portion may be formed by (Claim 6).

  In addition, a plurality of aluminum anti-slip members that are formed in a corrugated cross-sectional shape and that have corrugated portions cut out at appropriate intervals in the longitudinal direction are arranged at appropriate intervals on the upper surface of the main body frame, and extrusion molding At the same time, the non-slip portion may be formed by fixing to the surface portion of the upper surface portion where the reinforcing protrusions formed on the lower surface of the upper surface portion are located by welding (Claim 7).

  According to this invention, since it is configured as described above, the following effects can be obtained.

  (1) According to the first, second, third, sixth, and seventh aspects of the present invention, an aluminum slip that reinforces the upper surface portion of the main body frame and prevents vertical and side slips of the loaded vehicle. By forming the stop, it is possible to prevent vertical and side slipping of the vehicle loaded without being affected by rainwater, and to obtain sufficient strength for heavy loaded vehicles and to prevent damage. It can be reduced and the life can be increased. In this case, by welding the anti-slip member at the surface portion of the upper surface portion where the reinforcing protrusions formed on the lower surface of the upper surface portion are located at the same time as the extrusion, the welded portion is melted and thinned by the heat of welding. Since the thickness of the upper surface portion can be supplemented by the reinforcing protrusions, the strength of the main body frame can be maintained (claims 6 and 7).

  (2) According to the invention described in claim 4, since the non-slip portion is formed by removably fixing the aluminum mesh panel to the surface of the upper surface portion of the main body frame by the fixing member, the above (1) In addition, it is possible to further replace the damaged or worn anti-slip portion. In addition, since the replaced used mesh panel can be recycled, the environment can be protected and the resources can be effectively used.

  (3) According to the invention of claim 5, a plurality of non-slip members made of cast aluminum are scattered on the surface portion of the upper surface portion where the reinforcing protrusions formed on the lower surface of the upper surface portion are positioned simultaneously with the extrusion. Since the anti-slip portion is formed by detachably fixing with a fixing screw member, in addition to the above (1), it is possible to allow replacement of each damaged or worn anti-slip member. Can be easily exchanged. In addition, since the replaced used non-slip member can be recycled, the environment can be protected and the resources can be effectively used.

  As shown in FIG. 1, the in-vehicle bridge of the present invention includes a main body frame 10 formed of an aluminum extruded shape and an aluminum extruded shape joined to one lower end of the main body frame 10. And a hook 30 formed of an extruded aluminum member joined to the other upper end of the main body frame 10, and the upper surface of the main body frame 10. The part 11 is formed with an anti-slip part 40 made of aluminum that reinforces the upper surface part 11 and prevents vertical and side slip of a vehicle to be loaded. An aluminum reinforcing plate 50 is fixed to the side surfaces of both upper and lower ends of the main body frame 10 by welding or the like.

  In the vehicle-mounted bridge configured as described above, the engaging portion 31 provided on the hook 30 is hooked on the receiving hook 2 provided on the loading platform 1 of the truck, and one end portion of the riding-in member 20 is attached to the ground 3. In the arranged state, it can be used for loading and unloading vehicles to be loaded.

  Hereinafter, an embodiment of an in-vehicle bridge (hereinafter referred to as a bridge) according to the present invention will be described in detail with reference to FIGS.

<First Embodiment>
2 is a plan view (a) and a side view (b) showing a first embodiment of the bridge of the present invention, FIG. 3 is an enlarged side view of a portion I in FIG. 2, and FIG. 4 is a sectional view taken along line II-II in FIG. FIG.

  The bridge according to the first embodiment is a case where an anti-slip portion 40 </ b> A is integrally formed on the surface of the upper surface portion 11 of the main body frame 10.

  In this case, the main body frame 10 is an aluminum extruded profile having a pair of upper and lower protrusions 14 and 15 on the left and right sides, each having an upper surface portion 11 and a lower surface portion 12 connected to each other by, for example, three bars 13. It is formed in a hollow rectangular shape, and has a structure in which a crosspiece 13 on one end side is cut out and a part of the lower surface portion 12 is inclined.

  The upper surface portion 11 is formed thicker than the lower surface portion 12, and a plurality of vertical grooves 41 formed at the same time as the extrusion molding are formed on the surface, and the vertical grooves 41 are formed by grooving with a milling machine, for example. A non-slip portion 40 </ b> A composed of a plurality of intersecting inclined grooves 42 is formed integrally with the main body frame 10. Thus, after forming the vertical groove 41 at the same time as extrusion, the inclined groove 42 is grooved to facilitate the processing of the anti-slip portion 40A, and the vertical groove 41 is grooved. The material can be reduced as compared with the case.

  As described above, the anti-slip portion 40A includes the upper surface portion 11 formed thick with respect to the lower surface portion 12, the plurality of vertical grooves 41 formed on the surface of the upper surface portion 11 simultaneously with the extrusion, and the vertical grooves 41. By forming with a plurality of inclined grooves 42 intersecting with each other, the strength of the upper surface portion 11 of the bridge can be strengthened, and the vertical and side slip of the vehicle loaded without being affected by rainwater can be surely prevented. can do.

  A drooping piece 16 bent downward at a substantially right angle is provided at the tip of the protruding portion 14 of the upper surface portion 11 of the main body frame 10, and upward at the tip of the protruding portion 15 of the lower surface portion 12. Standing pieces 17 bent at substantially right angles are provided, and the hanging pieces 16 and the standing pieces 17 face each other. An aluminum reinforcing plate 50 is in contact with the inner side of the hanging piece 16 and the standing piece 17 on the upper side and the lower side (the inclined part side of the lower surface portion 12) of the main body frame 10, and is fixed by welding. As a result, the strength of the entire bridge is improved.

  Further, the riding member 20 extends outward from the riding member base portion 22 having a substantially hollow triangular cross section whose intermediate portion is connected by the connecting piece 21 and the base end side of the riding member base portion 22. The upper piece 23 and the lower piece 24 are formed. The main body frame 10 and the riding member 20 are fixed by welding in a state where one end portion of the main body frame 10 is fitted between the upper piece 23 and the lower piece 24 of the riding member 20 formed as described above. A plurality of anti-slip ridges 25 that are parallel to each other protrude from the upper inclined surface of the riding member base 22.

  On the other hand, as shown in FIG. 2, the hook 30 is suspended from a hook base 32 having a truss structure, for example, and a lower end on the tip side of the hook base 32, and is hooked to a receiving hook 2 provided on the truck bed 1. And an upper horizontal piece 33 and a lower horizontal piece 34 that extend outward from the upper and lower portions of the base end side of the hook base 32. The main body frame 10 and the hook 30 are fixed by welding in a state where the upper end of the main body frame 10 is inserted between the upper horizontal piece 33 and the lower horizontal piece 34 of the hook 30 formed in this way. . Thus, by making the hook 30 into the truss structure, sufficient strength can be obtained with respect to the load received when the heavy vehicle is loaded and unloaded.

Second Embodiment
FIG. 5 is a plan view (a) and a side view (b) showing a second embodiment of the bridge of the present invention, FIG. 6 is an enlarged side view of a portion III in FIG. 5, and FIG. FIG.

  The bridge according to the second embodiment is a case where an anti-slip portion 40B is formed by fixing an aluminum mesh panel 60 to the surface of the upper surface portion 11 of the main body frame 10 by welding.

  In this case, the mesh panel 60 is a rectangular plate having substantially the same shape as the upper surface portion 11 of the main body frame 10 formed by, for example, bonding a plurality of aluminum strips in a zigzag pattern and then pulling them in a direction perpendicular to the bonding surface. It is formed with a shaped expansion panel.

  The mesh panel 60 formed as described above is disposed on the surface of the upper surface portion 11 of the main body frame 10, and both end portions in the longitudinal direction are formed on the upper piece 23 of the loading member 20 and the upper horizontal piece 33 of the hook 30. In a state where they are in contact with each other, spot welding is performed on each of the contact portions and several portions on both sides to form the non-slip portion 40B.

  As described above, the upper surface portion 11 of the main body frame 10 can be reinforced by fixing the aluminum mesh panel 60 to the surface of the upper surface portion 11 of the main body frame 10 by welding to form the anti-slip portion 40B. At the same time, it is possible to prevent vertical and side slipping of the vehicle loaded without being affected by rainwater.

  In the second embodiment, the other parts are the same as those in the first embodiment, so the same parts are denoted by the same reference numerals and description thereof is omitted.

<Third Embodiment>
FIG. 8: is a top view (c) which shows 3rd Embodiment of the bridge | bridging of this invention, the enlarged plan view (b) of the V section of (a), and the expanded sectional view along the VI-VI line of (b) (c) ).

  In the third embodiment, the anti-slip portion is replaceable. That is, this is a case where the mesh panel 60 in the second embodiment is detachably fixed to the upper surface portion 11 of the main body frame 10 by fixing members such as U bolts 61 and nuts 62. In this case, as shown in FIG. 8, the mesh panel 60 is disposed on the surface of the upper surface portion 11 of the main body frame 10, and U bolts 61 are provided at a plurality of locations (seven locations on the left and right in the drawing) on both sides. And a nut 62.

  In order to attach the mesh panel 60, the U bolt 61 is passed through the intersection of the mesh panel 60, and is inserted into the mounting hole 14 a formed in the projecting portion 14 of the upper surface portion 11, and below the projecting portion 14. A nut 62 is screwed onto the projecting screw portion 61 a via a washer 63 to fix the mesh panel 60. When removing the mesh panel 60, the mesh panel 60 can be detached from the main body frame 10 by unscrewing the U bolt 61 and the nut 62.

  As described above, the aluminum mesh panel 60 is detachably fixed to the surface of the upper surface portion 11 of the main body frame 10 by the U bolt 61 and the nut 62 to form the anti-slip portion 40C. The upper surface portion 11 can be reinforced, the vehicle loaded without being affected by rainwater can be prevented from vertical and side slipping, and the damaged or worn anti-slip portion 40C can be replaced. Can do. In addition, since the replaced used net-like panel 60 can be recycled, the environment can be protected and the resources can be effectively used.

  In the third embodiment, the other parts are the same as those in the first embodiment. Therefore, the same parts are denoted by the same reference numerals and description thereof is omitted.

<Fourth embodiment>
FIG. 9 is a plan view (a) and a side view (b) showing a fourth embodiment of the bridge of the present invention, and FIG. 10 is an enlarged plan view (a) and (a) of the main part of the fourth embodiment. It is an expanded sectional view (b) which follows the VII-VII line.

  The fourth embodiment is a case where replacement for each of a plurality of anti-slip members constituting the anti-slip part is enabled. That is, a plurality of non-slip members 70 made of cast aluminum are arranged in a dotted pattern, for example, a staggered pattern, on the surface portion of the upper surface portion 11 where the reinforcing protrusions 18 formed on the lower surface of the upper surface portion 11 are located simultaneously with extrusion. This is a case where the anti-slip portion 40D is formed by being detachably fixed by a fixing screw member, for example, a tapping screw 80.

  In this case, as shown in FIG. 10, the anti-slip member 70 has a mounting hole 72 formed in the center of the truncated conical main body 71, and the top of the mounting hole 72 has a head of the tapping screw 80. A large-diameter concave portion 73 that accommodates the portion 80a is provided.

  In order to attach the anti-slip member 70 formed as described above to the upper surface portion 11 of the main body frame 10, a positioning member provided in advance on the surface portion of the upper surface portion 11 where the reinforcing protrusions 18 are positioned in the main body frame 10. Anti-slip members 70 are arranged in a dotted pattern, for example, a staggered pattern, in accordance with a mark, for example, a positioning line or a positioning V-groove 90 (see FIG. 10), and a tapping screw 80 penetrating through the mounting hole 72 is used for positioning V The anti-slip member 70 is fixed to the upper surface portion 11 of the main body frame 10 by screwing into the upper surface portion 11 and the reinforcing protrusions 18 of the main body frame 10 through the grooves 90. At this time, the head 80 a of the tapping screw 80 is accommodated in the large-diameter recess 73, so that it does not protrude outside the anti-slip member 70. The positioning line or positioning V-groove 90 as a positioning mark can be provided at the same time as the extrusion of the main body frame 10. By using the positioning V-groove 90 as a positioning mark, the tapping screw 80 can be provided. Threading can be facilitated.

  As described above, a plurality of non-slip members 70 made of cast aluminum are arranged in a dotted pattern, for example, a staggered pattern, on the surface of the upper surface portion 11 of the main body frame 10 where the reinforcing projections 18 are located, and are fixed detachably. By forming the anti-slip portion 40D, it is possible to reinforce the upper surface portion 11 of the main body frame 10, and it is possible to prevent vertical and side slip of a vehicle loaded without being affected by rainwater, Since it is possible to replace each damaged or worn anti-slip member 70, the replacement can be easily performed in a short time. Further, since the replaced used anti-slip member 70 can be recycled, the environment can be protected and the resources can be effectively used.

  In the above description, the case where the anti-slip member 70 is formed in a substantially frustoconical shape has been described. However, the shape of the anti-slip member 70 does not necessarily have to be a frustoconical shape. It may be a truncated polygonal pyramid such as a head quadrangular pyramid. In the above description, since a gap is generated between the rows along the longitudinal direction of the anti-slip member 70, the case where a plurality of reinforcing protrusions 18 are provided has been described. When the arrangement is made so as not to occur, the reinforcing protrusions 18 may be formed as one, that is, the thickness of the upper surface portion 11 may be increased.

  In the fourth embodiment, the other parts are the same as those in the first embodiment, and therefore the same parts are denoted by the same reference numerals and description thereof is omitted.

<Fifth Embodiment>
11 is a plan view (a) and a side view (b) thereof showing a fifth embodiment of the bridge of the present invention, FIG. 12 is an enlarged sectional view taken along line VIII-VIII of FIG. 11, and FIG. It is an expanded sectional view which follows the IX-IX line of 11.

  In the fifth embodiment, a plurality of anti-slip members 70A made of aluminum having a corrugated cross section are scattered on the surface portion of the upper surface portion 11 where the reinforcing protrusions 18 formed on the lower surface of the upper surface portion 11 are positioned simultaneously with extrusion. This is a case where the anti-slip portion 40E is formed by arranging in a zigzag shape and fixing by welding.

  In this case, the non-slip member 70A is formed of an aluminum extruded shape having a predetermined dimension with a cross-sectional wave shape, for example, a cross-sectional substantially triangular wave shape (specifically, a cross-sectional substantially triangular wave shape inclined toward the upper side of the body frame 10) It is formed of small pieces cut into pieces. In order to attach the anti-slip member 70A to the upper surface portion 11 of the main body frame 10, a positioning mark, for example, a positioning line, provided in advance on the surface portion of the upper surface portion 11 where the reinforcing protrusions 18 are located in the main body frame 10 is provided. 91 (see FIG. 11 (a)), the anti-slip member 70A is arranged in a dotted pattern, for example, a staggered pattern, and the inside and outside of the end of the anti-slip member 70A are spot-welded to attach the anti-slip member 70A. An anti-slip portion 40E is formed by being fixed to the upper surface portion 11 of the main body frame 10.

  As described above, a plurality of cross-sectional corrugated anti-slip members 70A formed of an extruded aluminum member are arranged in a scattered manner on the surface of the upper surface portion 11 of the main body frame 10 where the reinforcing ridges 18 are located. By fixing by welding and forming the anti-slip portion 40E, the upper surface portion 11 of the main body frame 10 can be reinforced, and vertical and side slip of a vehicle loaded without being affected by rainwater can be prevented. be able to. Further, by welding the anti-slip member 70A at the surface portion of the upper surface portion 11 where the reinforcing protrusions 18 formed on the lower surface of the upper surface portion are positioned simultaneously with the extrusion, the welded portion W is melted by the heat of welding. Since the thickness of the thinned upper surface portion 11 can be supplemented by the reinforcing ridges 18, the strength of the main body frame 10 can be maintained.

  In the above description, the case where the anti-slip member 70A is formed in a substantially triangular wave shape has been described. However, the cross-sectional shape of the anti-slip member 70A is not necessarily a substantially triangular wave shape. It may be a wave shape or the like.

  In the fifth embodiment, the other parts are the same as those in the first embodiment, and therefore the same parts are denoted by the same reference numerals and description thereof is omitted.

<Sixth Embodiment>
14 is a plan view (a) and a side view (b) thereof showing a sixth embodiment of the bridge of the present invention, FIG. 15 is an enlarged sectional view taken along line XX of FIG. 14, and FIG. It is a perspective view which shows the slip prevention member in 6 embodiment.

  In the sixth embodiment, a plurality of first and second non-slip members 70B and 70C made of aluminum having a corrugated portion 74 cut out at an appropriate interval in the longitudinal direction are formed by extrusion molding. At the same time, the non-slip portion 40F is formed by welding to the surface portion of the upper surface portion 11 where the reinforcing protrusions 18 formed on the lower surface of the upper surface portion 11 are located.

  Each of the anti-slip members 70B and 70C in the sixth embodiment has a cross-sectional wave shape, for example, an aluminum extruded shape having a substantially triangular wave shape that is inclined toward the upper side of the main body frame 10, as in the fifth embodiment. It is formed in a length that is cut to a length slightly shorter than the width of the frame 10.

  As shown in FIG. 16A, the first anti-slip member 70 </ b> B has a central notch 75 in which an intermediate corrugated portion 74 along the longitudinal direction is notched in a U shape. Further, as shown in FIG. 16B, the second anti-slip member 70C is cut into a corrugated portion 74L shape at both ends at an appropriate interval in the longitudinal direction, contrary to the first anti-slip member 70B. It has a cut-out portion 76 that is notched at both ends. In order to attach the first and second anti-slip members 70 </ b> B and 70 </ b> C formed in this way to the upper surface portion 11 of the main body frame 10, the first and second members along the longitudinal direction of the upper surface portion 11 of the main body frame 10. The anti-slip members 70B and 70C are alternately and parallel to each other, and the first and second anti-slip members 70B are spot welded to the surface portion of the upper surface portion 11 where the reinforcing protrusions 18 are located in the main body frame 10. , 70C is fixed to the upper surface portion 11 of the main body frame 10 to form a non-slip portion 40F. In this case, it is preferable to provide a positioning mark, for example, a positioning line (not shown) on the surface portion of the upper surface portion 11 where the reinforcing protrusion 18 is located.

  As described above, the plurality of first and second anti-slip members 70B and 70C having a corrugated cross section formed of an aluminum extruded profile are appropriately spaced in the longitudinal direction of the upper surface portion 11 of the main body frame 10. For example, the top surface portion 11 of the main body frame 10 can be reinforced by arranging the anti-slip portions 40F by arranging them alternately and parallel to each other along the longitudinal direction and fixing them by welding. It is possible to prevent vertical and side slipping of a vehicle loaded without being affected. Further, by welding the first and second anti-slip members 70B and 70C at the surface portion of the upper surface portion 11 where the reinforcing protrusions 18 formed on the lower surface of the upper surface portion are positioned simultaneously with the extrusion, the welded portion W is welded. However, the thickness of the upper surface portion 11 that is melted and thinned by the heat of welding can be supplemented by the reinforcing protrusions 18, so that the strength of the main body frame 10 can be maintained.

  In the above description, the case where the first and second anti-slip members 70B and 70C are formed to have a substantially triangular wave cross section has been described. However, the cross-sectional shapes of the first and second anti-slip members 70B and 70C are as follows. It is not necessarily required to have a substantially triangular wave shape, and may be, for example, a substantially trapezoidal wave shape. Moreover, you may provide the center notch part 75 in the 1st anti-slip | skid member 70B in multiple places other than one place.

  In the sixth embodiment, the other parts are the same as those in the first embodiment, so the same parts are denoted by the same reference numerals and description thereof is omitted.

It is a side view which shows the use condition of the bridge | bridging for vehicles of this invention. It is the top view (a) which shows 1st Embodiment of the vehicle-mounted bridge of this invention, and its side view (b). FIG. 3 is an enlarged side view of a portion I in FIG. 2. It is an expanded sectional view which follows the II-II line of FIG. It is the top view (a) and its side view (b) which show 2nd Embodiment of the vehicle-mounted bridge of this invention. It is an enlarged side view of the III section of FIG. It is an expanded sectional view which follows the IV-IV line of FIG. The top view (a) which shows 3rd Embodiment of the bridge | bridging for vehicles of this invention, the enlarged plan view (b) of the V section of (a), and the expanded sectional view (c) which follows the VI-VI line of (b) is there. It is the top view (a) which shows 4th Embodiment of the bridge | bridging for vehicles of this invention, and its side view (b). It is an expanded sectional view (b) which follows the VII-VII line of the enlarged plan view (a) and (a) of the principal part of 4th Embodiment. It is the top view (a) which shows 5th Embodiment of the vehicle-mounted bridge of this invention, and its side view (b). It is an expanded sectional view which follows the VIII-VIII line of FIG. It is an expanded sectional view which follows the IX-IX line of FIG. It is the top view (a) which shows 6th Embodiment of the bridge | bridging for vehicles of this invention, and its side view (b). It is an expanded sectional view which follows the XX line of FIG. It is a perspective view which shows the anti-slip | skid member in 6th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Main body frame 11 Upper surface part 12 Lower surface part 13 Crosspiece 18 Reinforcement protrusion 20 Riding member 30 Hook 40, 40A-40F Non-slip part 41 Vertical groove 42 Inclined groove 60 Reticulated panel 61 U bolt (fixing member)
62 Nut (fixing member)
70, 70A, 70B, 70C Non-slip member 74 Corrugated part 75 Center notch part 76 Both end notch part 80 Tapping screw (fixing screw member)
W weld

Claims (7)

A main body frame formed of an extruded aluminum member whose upper surface portion and lower surface portion parallel to each other are connected by a crosspiece, the crosspiece on one end side being cut off and a part of the lower surface portion being inclined, and the one end of the main body frame Formed by an aluminum extruded profile joined to the part and an aluminum extruded profile joined to the other end of the main body frame and hooked to the receiving hook of the truck bed In a vehicle-mounted bridge comprising a hook having an engaging part
An in-vehicle bridge characterized in that an upper non-slip portion is formed on the upper surface of the main body frame to reinforce the upper surface and prevent vertical and side slip of a vehicle to be loaded. The in-vehicle bridge according to claim 1,
A plurality of vertical grooves formed at the same time as extrusion molding on the surface of the upper surface portion formed thick with respect to the lower surface portion, and a plurality of inclined grooves intersecting the vertical grooves by grooving. A vehicle-mounted bridge, characterized by being formed by. The in-vehicle bridge according to claim 1,
An in-vehicle bridge, characterized in that an anti-slip portion is formed by fixing an aluminum net-like panel to a surface of an upper surface portion of a main body frame by welding. The in-vehicle bridge according to claim 1,
An in-vehicle bridge characterized in that an anti-slip portion is formed by removably fixing an aluminum net-like panel to a surface of an upper surface portion of a main body frame by a fixing member. The in-vehicle bridge according to claim 1,
A plurality of non-slip members made of cast aluminum are arranged in a dotted pattern on the surface of the upper surface where reinforcing ridges formed on the lower surface of the upper surface are located at the same time as extrusion, and are detachably fixed by fixing screw members And an anti-slip portion to form a vehicle-mounted bridge. The in-vehicle bridge according to claim 1,
A slip-shaped aluminum anti-slip member with a corrugated cross section is placed on the surface of the upper surface where the reinforcing protrusions formed on the lower surface of the upper surface are located at the same time as extrusion and fixed by welding. An in-vehicle bridge characterized by forming a stop portion. The in-vehicle bridge according to claim 1,
A plurality of aluminum non-slip members formed in a corrugated cross section and having corrugations cut out at appropriate intervals in the longitudinal direction are arranged at appropriate intervals on the upper surface of the main body frame, and the upper surface simultaneously with extrusion molding An in-vehicle bridge, characterized in that a non-slip portion is formed by welding to a surface portion of an upper surface portion where reinforcing ridges formed on the lower surface of the material are positioned.

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