JP4225409B2 - Vehicle bridge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle bridge that is used when various working vehicles, crawlers, and the like are carried into or out of a transportation vehicle such as a truck.
[0002]
[Prior art]
[Patent Document 1]
Japanese Utility Model Publication No. 4-51834 [Patent Document 2]
Japanese Utility Model Publication No. 5-82951 [Patent Document 3]
Design Registration No. 935586 [Patent Document 4]
Japanese Patent No. 2835261 [Patent Document 5]
Japanese Patent Application No. 2003-016032
[0003]
There are roughly two types of bridges for vehicles: a ladder with a stepped surface and a single stepped surface. A vehicle for agricultural work including a machine with casters and a machine with small wheels using this bridge. Ascending to the step surface of the vehicle bridge so that the work vehicle can be smoothly and safely carried into the transfer vehicle while effectively preventing the work vehicle from slipping off the step surface. Usually, the cut-and-raised protrusions whose openings are aligned are arranged as slip stoppers.
[0004]
In the case of a tire vehicle and a crawler vehicle for farm work, there is a large tendency for a large amount of mud mixed with foreign matter such as hail, dead grass and leaves to adhere to the surface of the tire or the crawler. When ascending, the cut and raised protrusions on the step surface are blocked by the mud mass, and there is a problem that it does not function sufficiently as a slip stopper.
In the case of ladder bridges, the space on the ladder-shaped step surface plays a role of mud dropping, but in the case of a single step, the opening of the anti-slip projection is blocked by mud blocks and demonstrates the function of mud dripping It is often difficult to do.
In addition, when the worker lifts and lowers the step surface of the vehicle bridge as the above-mentioned agricultural vehicles are loaded and unloaded, the ladder bridge has a stepped down from the ladder space, With the aging of the population, there are concerns about such frequent occurrences.
[0005]
[Problems to be solved by the invention]
The present invention can prevent the operator from stepping down in the step surface as described above, and can effectively scrape off the tire and the crawler vehicle from the step surface to remove the sludge from the step surface. It is an object of the present invention to prevent tires effectively and smoothly and safely carry tire vehicles or crawler vehicles into and out of transfer vehicles.
[0006]
[Means for Solving the Problems]
The present invention relates to an extruded long product made of aluminum or aluminum alloy having side plates with flanges on both the left and right sides of a long plate, and a hollow opening and one side portion of the opening in the longitudinal direction of the long plate are formed in the long plate. A plurality of mud dropping openings formed in combination with ridges formed by extrusion molding from the back side to the front side are disposed in the longitudinal direction of the long plate and in a direction perpendicular thereto. The present invention relates to a vehicular bridge characterized by being configured as a vehicle tire and an anti-slip step plate for scraping off a crawler.
[0007]
[Action]
The present invention can take the following embodiments in the above-described means.
(1) A vehicle bridge in which anti-slip projections of a vehicle including cut-and-raised portions having no cut-out opening are provided on both the left and right sides of the step plate.
(2) A vehicular bridge in which a cut-out opening has a substantially flat rectangular shape, a three-month shape, an arc shape, a combination shape thereof, and other shapes that are vertically short and horizontally long.
(3) A vehicular bridge in which a plurality of rib strips extending in the longitudinal direction are provided on the back surface of the step plate, and a row of mud dropping openings are formed between adjacent rib strips.
(4) Mud dropping openings are provided in a row in the longitudinal direction of the step plate and in a direction perpendicular thereto, and rib strips extending in the longitudinal direction are respectively provided on the back surfaces between the rows in the longitudinal direction of the mud dropping openings. The formed vehicle bridge.
[0008]
(5) The vehicular bridge has a size and shape that can prevent the stepped-out pedestrian from stepping through the opening.
(6) A vehicular bridge provided with left and right hooked side plates each having a substantially Z-shaped cross section in which each side plate is spent in the opposite direction, with the front side plate facing outward and the back side plate facing inward.
(7) A vehicular bridge in which the front side of the longitudinal ends of the left and right hooked side plates is chamfered obliquely in the longitudinal direction, and a protective cap case adapted to the chamfered shape is fixed to the chamfered portion.
(8) A vehicular bridge in which an anti-skid protrusion group or groove group extending in the longitudinal direction is arranged on the front side plate.
(9) A vehicle bridge that can be folded in half in the longitudinal direction with the surface of the step plate facing outward by a hinge mechanism.
[0009]
【The invention's effect】
The effects of the present invention are summarized and listed as follows.
(1) Since the step surface of the vehicular bridge is a single piece in the longitudinal direction and the anti-slip for mud scraping is provided on the step surface, it is caused by an accidental stepping down of the operator who moves up and down the step surface when using the vehicular bridge. There is no risk of accidents occurring, and tires and crawler vehicles rising on the step surface can effectively scrape off the tire and crawler adhering mud from the step surface, and slip when climbing the step surface of the tire vehicle and crawler vehicle. Effectively prevent.
(2) Each mud scraper is made up of a combination of a hollow opening for mud dropping on the upper side and a raised part having a cavity continuous to the lower side of the rising and opening toward the hollow opening. Therefore, the mud adhering to the tire and the crawler is scraped off from the tire and the crawler by the above-described raised portion, and falls directly below the step plate from the hollow opening located in front of the tire and the crawler. As the step surface of the vehicle and the crawler vehicle rises, effective scraping can be expected over the entire length of the step surface in the longitudinal direction.
(3) Since the side plate of the step plate has a substantially Z-shaped cross section in which the front side plate is outward and the back side plate is inward in the opposite direction, the step surface (the surface of the step plate) The anti-slipping material can be disposed over the entire width, and the effect of anti-slipping and anti-slipping over the entire width of the step surface can be expected.
(4) Since the side plate of the step plate has a substantially Z-shaped cross section and the rib strip extending in the longitudinal direction is provided at the position where the left and right adjacent mud scrapers are separated on the back surface of the step plate, It is excellent in strength of use and running stability of tire vehicles and crawler vehicles on the step surface.
(5) By adjusting the arrangement distance (arrangement density) in the longitudinal direction and the width direction on the step surface of the anti-slip skid for scraping, the required strength of the step plate can be maintained and the tire vehicle, the crawler vehicle and other uses. The design of the step surface suitable for the purpose can be designed.
[0010]
【Example】
Examples of the present invention are shown below, but these are given for illustrative purposes and do not limit the present invention.
[0011]
[Example 1]
In FIG. 1 and FIG. 2, the step plate (2) having the side plates (1) on the right and left is a long extruded product of aluminum or aluminum alloy, and the step plate (2) is tracked at one end in the longitudinal direction. There is a load carrier connection plate (3) to be fixed to or suspended from the load carrier, and a ground connection plate (4) is attached to the other end in the longitudinal direction.
(5) is an undulating handle attached to the outer surface of one of the left and right side plates (1) at the center of gravity in the longitudinal direction, thereby facilitating transportation and carrying of a long step plate.
As shown in FIGS. 3 and 6, the side plate (1) has upper and lower side plates (a) with the upper side plate (a) outward and the lower side plate (b) inward in opposite directions. The step plate (2) is fixed along the upper and lower central portions of the side plate (1) main body.
[0012]
As shown in FIGS. 3, 4, and 6, the step plate (2) has ribs (bumps) (5) extending in the longitudinal direction on the back surface at equal intervals in the width direction in order to maintain the required strength in the longitudinal direction. Is provided. On the surface of the step plate (2), the opening (6) is cut out at a position corresponding to the space between the ribs (5) and one side of the opening (6) in the longitudinal direction of the step plate is V-shaped from the back side to the surface side. A large number of mud dropping openings (8), which are formed by a combination with a raised portion (7) formed by extrusion molding, are arranged at equal intervals in the longitudinal direction of the step plate (2) and in the direction perpendicular thereto.
In the drawing (FIG. 3), since the effective width of the space between the left and right ribs (5) on both sides is narrowed by the rib (b), a substantially triangular raised portion by normal V-shaped cutting and raising. Although only (7) is provided, these can be the same mud dropping opening (8).
[0013]
Each of these mud openings (8) is in a direction in which each of the hollow openings (6) is directed to the load carrier connection plate (3) of the step plate, and each of the raised portions (7) is in the ground connection plate (4). In the ridges (7), mud masses, which are located respectively in the facing direction and are often mixed with hail and dead grass leaves adhering to the wheels or crawlers of vehicles or the like that load the step plate (2) from the ground side to the loading platform side Scraping and then dropping the hollow portion (9) in the raised portion (7) and the hollow opening (6) below the step plate effectively removes mud by the mud dropping opening (8).
[0014]
[Example 2]
As shown in FIGS. 5 and 6, at both longitudinal ends of the bridge main body, the upper side plate (a) on the step surface side (surface side) and the main body portion of the side plate (1) subsequent thereto are diagonally chamfered (10 ), And a cap case (11) adapted to the square shape is welded and fixed to the upper end surface of the bridge body.
Further, at the end of the step plate (2) in the longitudinal direction, the loading plate side connection plate (3) or the ground side connection plate (4) is provided on the surface opposite to the step surface (back side) using the rib (5) described above. Mated and connected.
[0015]
That is, in the case of FIG. 6, in the connection plate (3) or (4), the connection plate having the same width as the bridge has a width that can be fitted between the side plates (1) and (1) by chamfering both sides on the fitting side. In addition, a longitudinal groove (12) into which the rib (5) can be fitted between the corners is cut into contact with the back surface of the step plate and fixed by welding.
In the case of FIG. 5, the connecting plate (3) or (4) is a hollow tapered plate having a flat triangular cross section, and has a plurality of lateral anti-slip protrusions (13) on the upper and lower surfaces, The rear end face where the taper is open is an opening having a U-shaped cross section.
The upper and lower surfaces of the opening sandwich and fit the upper surface of the step plate (2) at the bridge end and the lower surface of the lower rib (b) and fix them by welding.
(14) is an L-shaped fitting that is attached when the connecting plate is the loading platform side connecting plate (3), and is used by being inserted and engaged between the loading platform and the rear tilt.
[Brief description of the drawings]
FIG. 1 is a side view of a bridge.
FIG. 2 is a plan view of a bridge.
FIG. 3 is a partially enlarged plan view of a bridge.
FIG. 4 is a longitudinal sectional view of a mud dropping opening.
FIG. 5 is an explanatory view of attachment of a connection plate attached to a longitudinal end portion of a bridge.
FIG. 6 is an explanatory view of attachment showing another example of FIG. 5;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Side plate 2 ... Step board 3 ... Loading platform side connection plate 4 ... Ground side connection plate 5 ... Rib 6 ... Hollow-out opening 7 ... Raised part 8 ... Mud dropping opening 9 ... Cavity part 10 ... Chamfer 11 ... Cap case 12 ... Longitudinal groove 13 ... Riding rod 14 ... Engagement fitting a ... Upper plate b ... Lower plate

Claims (8)

Vehicle tires consisting of a combination of hollow openings and raised portions and crawler traveling mud dropping openings are provided with side plates with hooks on both the left and right sides of the step plate and at both ends in the longitudinal direction of the step plate. Each has a loading platform connection plate and a ground connection plate, and the side plate with the hook has a substantially Z-shaped cross section in which the upper plate has been spent outward and the lower plate on the ground side has been spent inward. The stepped plate is a vehicle bridge, and the latter raised portion in the mud dropping opening is formed by extruding one side portion extending in the longitudinal direction of the step plate from the back surface side to the front surface side in a V-shape. A hollow portion is formed under the upper portion, and the former hollow opening is continuous with the hollow portion under the raised portion in an arc shape on the V-shaped side of the latter raised portion, and the step board pedestrian falls down. Dimensions that can prevent The opening for mud dropping, which has a shape and is a continuous combination of the hollow portion below the raised portion and the hollow opening, can scrape off mud adhering to the tire and crawler from the step surface. A vehicular bridge provided with a mud dropping opening, which prevents a crawler vehicle from slipping down and allows a vehicle and a crawler vehicle to be smoothly and safely carried into and out of a transfer vehicle. A mud dropping opening comprising a continuous combination of a hollow opening and a raised portion is provided on the back surface of the step plate having ribs extending in the longitudinal direction provided at equal intervals in the width direction. step plate longitudinal and vehicular bridges many claim 1, wherein that are arranged in a direction perpendicular thereto. 3. The raised portion of the mud dropping opening is formed by extruding one side portion extending in the longitudinal direction of the step plate from the back surface side to the front surface side in a V shape, and a cavity is formed under the raised portion. Vehicle bridge. The vehicular bridge according to claim 1, 2 or 3 , wherein the hollow opening of the mud dropping opening is formed in an arc shape continuously to the hollow portion on the V-shaped side of the raised portion . The load carrier connection plate and / or the ground connection plate is a hollow tapered plate having a flat triangular cross section, and has a plurality of lateral anti-slip protrusions on the upper and lower surfaces, and a tapered open rear end. The vehicular bridge according to claim 1, wherein an opening having a U-shaped cross section is sandwiched and fitted between a step plate and a lower plate . The ground connection plate and / or the loading platform connection plate are rounded to a width that allows the connection side to be fitted between the side plates, and a longitudinal groove that can be fitted to a rib provided on the back side of the connection side of the step plate is cut into the connection side. The vehicular bridge according to claim 1, 2, 3, 4 or 5, which is fixed to the back side of the connection side of the step plate . The vehicular bridge according to any one of claims 1 to 6, wherein an L-shaped engagement fitting used by being inserted and engaged between the loading platform and the rear tilt is attached to the loading platform connection plate . A mud dropping opening provided in a step board of a vehicle bridge, the mud dropping opening having a size and a shape that can prevent a step board pedestrian from stepping down and a combination of a raised opening and a raised part The latter raised portion is formed by extruding one side portion extending in the longitudinal direction of the step plate from the back side to the front side in a V shape, and a cavity is formed under the raised portion. Continuing to the cavity on the side of the ridge that opens to the V-shape, it can scrape off mud from tires and crawlers from the step surface, preventing slippage of vehicles and crawler vehicles from the step surface, and transporting vehicles and crawler vehicles The mud dropping opening in the vehicular bridge according to claim 1, which can be smoothly and safely carried into and out of the vehicular vehicle.

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