JP2012188191A - Bridge for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bridge for a vehicle that cannot only clearly recognize the directionality and the center position of the bridge from the surface side but also safely and surely load and unload a loaded vehicle on a loading platform of a vehicle.SOLUTION: The bridge for the vehicle includes: a pair of long frame materials disposed in parallel at the right and left sides; a plurality of approximately tabular step materials fixed by welding between the frame materials; and locking pieces fixed at ends of one side of the frame materials in the longitudinal direction for locking on the loading platform of the vehicle where the loaded vehicle is loaded or unloaded. The step materials are provided with instruction means which make the directionality of the frame materials and the center positions of the step materials visible from the surface side. The instruction means formed of labels on which directionality-indicating arrows and letters are printed are attached on surfaces of the step materials at ends thereof.

Description

  The present invention relates to a vehicle bridge that is used when loading vehicles such as rice transplanters, combines, and management machines on a loading platform of a vehicle such as a light truck.

  Conventionally, this type of bridge is disclosed in Patent Document 1, for example. This bridge includes a pair of left and right elongated frame members arranged in parallel, and a plurality of substantially plate-like step members welded and fixed between the frame members. Are fixed respectively. Then, the two bridges are inclined to the truck by locking the two bridges to the rear end of the truck bed of a light truck, for example, and placing the other end of each bridge on the ground. The vehicle is loaded onto the loading platform by moving the wheel of the loaded wheel on the step material of each bridge.

Japanese Utility Model Publication No. 4-51834

  However, in such a bridge, since the locking piece is provided in a protruding state on the back side of one end of the bridge, the operator can clearly see the directionality of the bridge itself from the surface side of the bridge ( It may be difficult to recognize), and the end of the bridge without the locking piece may be locked to the loading platform of the vehicle. In such a case, the bridge is unloaded from the loading platform or moved during use. There is a risk of accidents such as the vehicle falling. In addition, the work of matching the mounting interval of the two bridges with the pair of wheel intervals of the loaded vehicle to be loaded and unloaded is difficult, and it is difficult to mount the loaded vehicle wheel so that the center position of each bridge moves. It is not preferable in terms of safety of unloading work of the loaded vehicle.

  The present invention has been made in view of such circumstances. The purpose of the present invention is to make it possible to clearly see the direction of the bridge and the center position from the front side, and to safely load and unload the loaded vehicle onto the loading platform of the vehicle. Another object of the present invention is to provide a vehicle bridge that can be easily performed.

  In order to achieve such an object, the invention described in claim 1 of the present invention is a pair of left and right elongated frame members arranged in parallel and a plurality of substantially plates welded and fixed between the frame members. A step material having a shape, and a locking piece that is fixed to one end portion in the longitudinal direction of the frame material and that can be locked to a loading platform of a vehicle on which a loaded vehicle is loaded and unloaded, the step material, An instruction means for visually recognizing the directionality of the frame material and the center position of the step material from the surface side is provided.

  Further, the invention according to claim 2 is characterized in that the indicating means is provided at the center in the width direction of the end step material fixed by welding between both longitudinal ends of the pair of frame members. Features. In this case, as in the invention described in claim 3, it is preferable that the end step material has a flat surface and an inclined surface, and the indicating means is provided on both surfaces. Furthermore, the invention described in claim 4 is characterized in that the instruction means is a label on which a direction arrow and a character are printed and can be attached to the step material. Further, in the invention according to claim 5, the frame material has a main body portion having a substantially rectangular cross section, a protrusion protruding from an inner wall of the main body portion and engageable with an end portion of the step material, A rib integrally formed between the inner wall and the outer wall in the main body portion corresponding to the position of the protrusion is provided.

  According to the first aspect of the present invention, the directionality of the frame material and the center position of the step material are set on the plurality of substantially plate-like step materials welded and fixed between the pair of left and right frame materials. Since the indication means visible from the surface side is provided, the direction of the bridge and the center position can be clearly seen (recognized) from the surface side of the bridge by the indication means, and the locking piece is securely attached to the loading platform. The loading and unloading of the loaded vehicle onto the loading platform of the vehicle can be prevented by moving the loaded vehicle wheel at the center position of the step material. Work can be done safely and easily.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the indicating means is arranged in the width direction of the end step material fixed by welding between both ends in the longitudinal direction of the frame material. Since each bridge is provided at the center, even if it is a long bridge, the directionality and the center position can be clearly recognized by the pointing means at both ends.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the end step material has a flat surface and an inclined surface, and the indicating means is provided on both surfaces. Therefore, the directionality of the bridge and the center position can be more clearly recognized by the operator from various directions.

  Furthermore, according to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, the indicating means is an attachable label on which an arrow indicating a direction and characters are printed. This can be dealt with by sticking the label to the surface of the step material at both ends in the longitudinal direction, and a highly safe bridge can be manufactured at low cost, and even an existing bridge can be easily applied.

  According to the invention described in claim 5, in addition to the effects of the invention described in claims 1 to 4, the frame material includes a main body portion, a protrusion formed on the inner wall of the main body portion, Since the ribs integrally formed between the inner wall and the outer wall are provided, each step member can be fixed by welding using a ridge, and the manufacturing cost of the bridge can be reduced. It is possible to increase the rigidity of itself and obtain a bridge excellent in strength.

The top view which shows one Embodiment of the bridge for vehicles concerning this invention Arrow view taken along line AA in FIG. Enlarged view of the upper end of the bridge Enlarged view of the lower end of the bridge Arrow view taken along line BB in FIG. Perspective view of the frame material Sectional view of part C in FIG. Plan view of the label as the instruction means The perspective view which shows the attachment state to the track Sectional drawing of the principal part which shows the modification of the instruction | indication means

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
1 to 9 show an embodiment of a vehicle bridge according to the present invention. As shown in FIGS. 1 and 2, a vehicle bridge 1 (hereinafter referred to as a bridge 1) includes a pair of left and right frame members 2 arranged in parallel, and a plurality of steps welded and fixed between the frame members 2. A material 3 and a pair of locking pieces 4 that are welded and fixed to an upper end 2a that is one end of each frame material 2 are provided.

  The frame material 2 is formed in an elongated shape having a length of about 180 cm, for example, by extrusion molding of aluminum or an aluminum alloy. As shown in FIGS. 5 and 6, the frame material 2 has a main body 5 whose cross-sectional shape is a vertically long and substantially rectangular shape, and a design-like groove 6 on the upper and lower sides of the outer wall 5 a of the main body 5. Are integrally formed, and at the predetermined position in the height direction on the outer surface of the inner wall 5b of the main body portion 5, a protrusion 7 protruding integrally by a predetermined dimension is formed on the outer side (opposite surface side of the pair of frame members 2). Yes.

  The step material 3 and the frame material 2 are welded in a state where the widthwise end of the step material 3 is placed on the upper surface of the protrusion 7, so that each step material is interposed between the pair of frame materials 2. Both ends of 3 are fixed. Further, in the internal space of the main body portion 5 of the frame material 2, between the outer wall 5 a and the inner wall 5 b substantially corresponding to the protrusion 7, the rigidity such as the bending strength of the main body portion 5 (frame material 2) is increased. Ribs 5c are integrally formed.

  As shown in FIGS. 1 and 2, the step material 3 is welded and fixed between both longitudinal ends of a pair of frame materials 2, and a pair of end portions on which labels 8 as indicator means are attached. The step material 3a and a plurality of flat step materials 3b which are fixed by welding with a predetermined gap 14 between the frame materials 2 between the end step materials 3a. A plurality of slip stoppers 9 bulging upward in a triangular shape are integrally formed at predetermined positions on the surfaces of the end step member 3a and the flat step member 3b.

  In addition, as shown in FIGS. 3, 4 and 7, the end step material 3 a has a flat surface 10 and an inclined surface 11, and the flat surface 10 and the inclined surface 11 of each end step material 3 a are Labels 8 are respectively attached. As shown in FIG. 8, the label 8 is formed of a yellow-colored film (sheet) having an arrow shape in plan view, a black arrow 8a is formed on the outer periphery thereof, and “up” is formed in the central portion. Is printed in black.

  As shown in FIG. 7, the label 8 is provided with an adhesive portion 12 made of an appropriate adhesive on the back surface, and is inclined from the flat surface 10 of each end step material 3 a using the adhesive portion 12. Attached to the surface 11 respectively. At this time, each label 8 is attached so that the tip of the arrow 8a faces the upper end 2a of the frame member 2 to which the locking piece 4 of the bridge 1 is fixed, and the width of each end step member 3a. It is affixed to the central part of the direction (direction orthogonal to the longitudinal direction of the bridge 1). The label 8 is printed with appropriate characters 8c such as “safety / safety” in addition to the “up” characters 8b, but these characters may be omitted.

  As shown in FIG. 3, the locking piece 4 is formed by extrusion or the like of aluminum or an aluminum alloy, and has a fixed portion 4a having an L shape in side view and a protrusion formed below the tip of the fixed portion 4a. It has a stop 4b. Then, the thickness (width) of each locking piece 4 is set to be substantially the same as the width of the main body portion 5 of each frame material 2, and each locking piece 4 is welded to the opening of the upper end portion 2 a of each frame material 2. By being fixed, the opening is closed, and each locking portion 4b protrudes from the back surface side of each frame member 2 by a predetermined dimension. As shown in FIG. 4, grounding pieces 13 having the same material and shape as the fixing portions 4 a of the locking pieces 4 are welded and fixed to the openings of the lower end portions 2 b of the frame members 2, respectively. Thus, the opening of the lower end 2b of each frame member 2 is closed.

  Next, an example of how to use the bridge 1 configured as described above will be described. First, a loaded vehicle (hereinafter referred to as a rice transplanter) having opposed wheels, a caterpillar, or the like, such as a rice transplanter or a combine, is to be loaded on a loading platform 16 of a truck 15 such as a light truck shown in FIG. In this case, two bridges 1 are prepared. Then, while visually confirming the direction of the arrow 8a of the label 8 affixed to the end step material 3a of one bridge 1, the end on the side facing the arrow 8a, that is, the upper end of the bridge 1 is lifted. The locking portions 4b of the locking pieces 4 of the bridge 1 are inserted from above into the gap between the tilted cage 17 provided at the rear end of the loading platform 16 of the truck 15 and the vehicle body.

  As a result, the pair of locking pieces 4 of one bridge 1 is locked at a predetermined position of the loading platform 16 of the truck 15, and at this time, the grounding piece 13 abuts the ground at the lower end of the bridge 1, and the bridge 1 Is attached to the loading platform 16 in an orthogonal state. When the bridge 1 is attached by the worker, the arrow 8a printed in black on the yellow background and the label 8 on which the characters 8b are conspicuous allow the operator to clearly recognize the direction of the bridge 1 by visual observation. The bridge 1 can be prevented from being attached in the reverse direction.

  Once one bridge 1 is locked to the loading platform 16 and attached, the locking piece 4 of the other bridge 1 is then locked to the loading platform 16 in the same manner. At this time, the other bridge 1 is set so that the interval W between the label 8 of the bridge 1 already attached and the label 8 of the second bridge 1 to be attached next substantially matches the wheel interval of the rice transplanter. Is locked to the loading platform 16. When the two bridges 1 are attached to the loading platform 16, the distance W between the labels 8 of both bridges 1 is confirmed or adjusted, and in this state, the rice transplanter is driven, and the wheels of the rice transplanter are moved to the two It is moved on step 3 of the bridge 1 and loaded onto the loading platform 16.

  When the rice transplanter is loaded, the distance W between the two bridges 1 is set in advance so as to substantially correspond to the wheel interval of the rice transplanter by the label 8 which is easily noticeable. Can be moved in the central portion of the step material 3. In addition, when carrying a rice transplanter to the field which is a work site, and dropping from the loading platform 16 for rice planting, the two bridges 1 removed from the loading platform 16 are made in the same manner as when loading the rice transplanter described above. This can be done by reattaching to the loading platform 16 of the truck 15 and using the bridge 1.

  As described above, according to the bridge 1, the frame material 2 in which the locking piece 4 is fixed to the upper end portion 2 a to the plurality of substantially plate-like step materials 3 fixed by welding between the pair of left and right frame materials 2. Since the label 8 is attached so that the directivity and the center position of the step material 3 can be visually recognized from the surface side, the operator can change the directivity and the center position of the bridge 1 from the surface side of the bridge 1 by this label 8. It can be clearly recognized (recognized), and the locking piece 4 can be securely locked to the loading platform 16 to prevent the bridge 1 from being detached from the loading platform 16 or moving.

  In addition, by moving the rice transplanter as a loaded vehicle with the labels 8 provided at both ends of the bridge 1 as targets, the pair of wheels of the rice transplanter is reliably positioned at the center position of the step material 3 of each bridge 1. Can be moved. In particular, when the length of the bridge 1 is long because the label 8 is provided at the center in the width direction of the end step material 3a fixed by welding between both longitudinal ends of the frame material 2 of the bridge 1 Even if it exists, the directionality and center position can be clearly visually recognized by the label 8 of both ends.

  At the same time, the end step material 3a of the bridge 1 has the flat surface 10 and the inclined surface 11, and the label 8 is applied to the surfaces 10 and 11 of the pair of end step materials 3a in the longitudinal direction. The operator can visually recognize the label 8 even in an inclined state as well as on a plane, and the directionality of the bridge 1 and the center position (the positional relationship between the distance between the two bridges 1 and the wheel spacing of the rice transplanter). For example, it can be visually recognized more clearly from the rear of the loading platform 16 of the truck 15. For these reasons, it is possible to prevent the rice transplanter from detaching from the bridge 1 due to incorrect attachment of the bridge 1 and the movement of the wheel of the rice transplanter at the position where the bridge 1 is biased. For example, the rice transplanter may fall down during loading. It is possible to prevent a large inclination. As a result, it is possible to safely and easily perform the unloading operation of the rice transplanter and the like on the loading platform 16 even if the worker is an elderly person.

  Furthermore, since the arrow 8a and the character 8b which show directionality are printed on the label 8 as the instruction means, and the adhesive portion 12 is provided on the back surface of the label 8, for example, the label 8 is connected to the end step of the bridge 1. The bridge 1 can be easily applied to the surface of the material 3a, and the highly safe bridge 1 can be manufactured at a low cost, and can be easily applied to the existing bridge 1. It becomes possible to provide.

  Further, the frame material 2 includes a main body portion 5, a protrusion 7 that is formed to protrude from the inner wall 5 b of the main body portion 5, and a rib 5 c that is integrally formed between the inner wall 5 b and the outer wall 5 a in the main body portion 5. Therefore, both ends of each step member 3 can be welded and fixed using the protrusions 7, positioning of the step member 3 and welding work are facilitated, and the manufacturing cost of the bridge 1 can be reduced. Further, the rigidity of the frame material 2 itself can be increased by the ribs 5c, and the bridge 1 having excellent strength can be obtained. Even if the rice transplanter or the combine is heavy, these vehicles can be used as the loading platform 16 of the truck 15. Can be loaded and unloaded reliably and smoothly.

  In the embodiment, the label 8 on which the arrow 8a and the character 8b are printed is used as the instruction means. However, as shown in FIG. 10A, for example, the arrow 8a and the character 8b are connected to the end portion. The step material 3a can be formed by applying or spraying the paint 18 on the flat surface 10 or the inclined surface 11, or the arrows 8a and the characters 8b can be formed by direct printing. Further, as shown in FIG. 10B, a flat surface 10 or an inclined surface 11 of the end step member 3a is formed in a groove 19 indicating an arrow 8a or a character 8b, and a paint 18 of a predetermined color is formed in the groove 19. Application | coating etc. may be made to suppress that the arrow 8a and the character 8b disappear. Further, the instruction means is not limited to the combined use of the arrow 8a and the character 8b. For example, only the arrow 8a or only the character 8b may be used.

  Furthermore, in the said embodiment, although the label 8 as an instruction | indication means was each affixed on the edge part step material 3a of the upper end part of a bridge | bridging 3, and the edge part step material 3a of an upper end part (or lower end part), for example. For example, it can be affixed to the surface of the flat step member 3b at a substantially central position in the longitudinal direction of the bridge 1, or can be affixed to the surfaces of a plurality of flat step members 3b. Further, the shape of the end step material 3a and the flat step material 3b, the shape of the locking piece 4 and the grounding piece 13, the overall shape of the bridge 1 and the like in the embodiment are also examples. An appropriate configuration can be employed without departing from the gist of each invention according to the present invention, such as a structure in which the pair of locking pieces 4 and the grounding piece 13 fixed to the portion are integrated.

  The present invention is not limited to a bridge used when loading a loaded vehicle such as an agricultural machine on a loading platform of a truck such as a light truck. For example, a loaded vehicle such as a mountain bike is mounted on a loading platform of a vehicle such as a wagon vehicle. It can also be used for bridges used for picking down.

1 .... Vehicle bridge 2 .... Frame material 2a ... Upper end 2b ... Lower end 3 ... Step material 3a・ ・ ・ ・ ・ ・ End step material 3b ・ ・ ・ ・ ・ ・ Flat step material 4 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Locking piece 4a ・ ・ ・ ・ ・ ・ Fixing portion 4c ・ ・ ・ ・ ・ ・ Locking portion 5 .... Main body 5a ... Outer wall 5b ... Inner wall 5c ... Rib 6 .... Groove 7 ...・ Projections 8 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Label 8a ・ ・ ・ ・ ・ ・ Arrow 8b, 8c ・ ・ ・ Character 9 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Slip stopper 10 ・ ・ ・ ・ ・ ・ Flat surface 11 ... ... Inclined surface 12 .... Adhesive part 13 .... Grounding piece 15 .... Track 14 .... Gap 16 ...... Load platform 17 ....・ ・ ・ ・ Aori 18 ……・ Paint 19 ・ ・ ・ ・ ・ ・ Groove

Claims (5)

A pair of left and right elongated frame members arranged in parallel, a plurality of substantially plate-like step members welded and fixed between the frame members, and fixed to one end in the longitudinal direction of the frame member And a locking piece that can be locked to the loading platform of the vehicle on which the loaded vehicle is loaded and unloaded,
A vehicular bridge characterized in that the step member is provided with an instruction means for visually confirming the directionality of the frame member and the center position of the step member from the surface side.   2. The vehicle according to claim 1, wherein the instruction unit is provided at a center in a width direction of an end step material fixed between both longitudinal ends of the pair of frame members. bridge.   The vehicular bridge according to claim 2, wherein the end step member has a flat surface and an inclined surface, and the indicating means is provided on both surfaces.   The vehicular bridge according to any one of claims 1 to 3, wherein the instruction means is a label printed with arrows and characters indicating directionality and can be attached to the step material.   The frame material includes a main body portion having a substantially rectangular cross section, a protrusion that protrudes from an inner wall of the main body portion, and an end portion of the step material that can be engaged with the frame member. The vehicle bridge according to claim 1, further comprising a rib integrally formed between the inner wall and the outer wall.

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