JP4322013B2 - Bridge for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bridge for vehicles and the like used for loading or unloading machines with small-diameter wheels such as various vehicles, carts, wheelbarrows, and the like.
[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 [0003]
There are two types of vehicle bridges: a bridge with a step surface suitable for large tires, a ladder-shaped bridge, and a single step surface suitable for small tires or carts with casters. There are few effective bridges for vehicles suitable for smoothly loading and unloading machines with small wheels on wheels, and there are few bridges for vehicles that can smoothly load and unload care vehicles and wheelbarrows on vehicles. It is.
The present invention provides an improvement in a vehicular bridge in which the latter step surface which solves these problems is a single piece.
[0004]
[Problems to be solved by the invention]
The present invention is a long extrusion molded product of aluminum or aluminum alloy that can smoothly load and unload machines with casters, machines with small diameter wheels, nursing vehicles, nursing carts, etc., has excellent structural strength, and is easy to manufacture. Providing basic vehicle bridges.
[0005]
[Means for Solving the Problems]
The first aspect of the present invention relates to a bridge for a vehicle or the like, wherein the entire step surface of the vehicle bridge is a non-slip surface using an abrasive.
Further, the present invention provides a non-slip sheet or film using an artificial abrasive on the entire step surface, or allows the vehicle bridge to be folded in the longitudinal direction with the step surface outward by a hinge mechanism, A vehicle bridge with a step plate fixed between the upper and lower center portions of the left and right side plates of a substantially Z-shaped cross section in which the upper and lower plates are disengaged in the opposite directions to each other with the lower plate facing outward The present invention relates to a bridge for a vehicle or the like whose main body is an extruded long molded product of aluminum or aluminum alloy.
[0006]
According to a second aspect of the present invention, the upper and lower side plates are expended in the opposite direction to the upper side plate and the lower side plate to the inside, respectively. The vehicular bridge body with the step plate fixed in the longitudinal direction is an extruded product of aluminum or aluminum alloy, and the step plate of the step plate is cut in a substantially triangular shape whose openings are aligned in one longitudinal direction. The present invention relates to a bridge for a vehicle or the like, which is provided with raising protrusions.
[0007]
In the first and second aspects of the invention, at both ends in the longitudinal direction of the vehicle bridge body, the saddle plate portion on the step surface side and the side plate portion subsequent thereto are diagonally chamfered in the longitudinal direction. A cap case that fits the cornering shape is fixed to the end face of the bridge body, or multiple ribs (projections) extending in the longitudinal direction are formed on the surface opposite to the step surface of the step plate. The edge is chamfered on both sides, and a longitudinal groove into which the rib is fitted is cut between the chamfers, and the end connecting plate is squared on the opposite side of the step surface to the end of the step plate. The end of the bridge is formed by a U-shaped opening formed on the rear end face of the end connecting plate made of a hollow tapered plate having a cross-sectionally knitted flat triangle. Step board The lower end plate is clamped and fixed, or the L-shaped hooking plate is fixed to both sides of the end connecting plate opposite to the stepped surface of the front edge that is tapered, or the bridge The present invention relates to a bridge for a vehicle or the like having a handle for hanging a bridge for a vehicle attached to an outer surface of a side plate on both sides at a center of gravity in a longitudinal direction.
[0008]
【The invention's effect】
(1) The step surface is fitted with an anti-slip sheet or film using an artificial abrasive to promote anti-slip and is adapted as an aluminum bridge for nursing care vehicles.
(2) Not only the anti-slip promotion but also the friction noise between the aluminum bridge and the wheelchair tires is suppressed to eliminate the anxiety of wheelchair users.
(3) Considering entry / exit from places with low steps, such as the edge of a house or a van-shaped passenger car, it can also be used at moderate angles.
(4) The step surface is fully stretched with a lot of triangular protrusions, so that small tires and machines with casters (radio control spray etc.) that could not be handled by ladder bridges can be safely loaded.
[0009]
【Example】
Examples of the present invention are shown below, but these are given for illustrative purposes and do not specifically limit the present invention.
[0010]
[Example 1]
1 and 2 show a front view and a plan view of a straight type (non-folding type) bridge, and a single step plate (2) is fixed between the left and right side plates (1) and (1). (3) is a handle attached to the outside of one or both side plates (1) so as to be raised and lowered, and is located at the longitudinal center of gravity of the bridge.
The upper surface of the step plate (2) (the step surface on which the vehicle etc. travels) is a non-slip surface (4) using an abrasive as shown in FIG. ing. This anti-slip surface (4) can be formed by laminating an anti-slip sheet or film (commercial product name: non-slip NCA) using an artificial abrasive.
Further, as shown in FIG. 4 showing the DD cross-sectional view of FIG. 3, the side plate (1) is opposite to the upper side plate (1 ′) outward and the lower side plate (1 ″) inward. It has a substantially Z-shaped cross section in which the upper and lower ribs are expended in the direction, and the step plate (2) is fixed between the upper and lower central portions of the side plate main body. The side plate (1) (1) and the step plate (2) Consists of an extruded long product of aluminum or aluminum alloy.
[0011]
Further, at both ends in the longitudinal direction of the bridge body, as shown in FIG. 5, the upper side plate (1 ′) on the step surface side and the side plate (1) subsequent thereto are diagonally chamfered (6). A cap case (5) suitable for the above is welded and fixed to the upper end surface of the bridge body.
Further, as shown in FIG. 4, a plurality of ribs (projections) (7) extending in the longitudinal direction are extruded in advance on the surface (back surface) opposite to the step surface of the step plate (2). As shown in FIG. 5, an end connection plate (8) for suspending one end in the longitudinal direction of the bridge on a loading platform of a truck or other loading vehicle is fitted and connected.
The connecting plate (8) having the same width as the bridge is rounded on both sides of the fitting side (8 ') (8') so that it can be fitted between the side plates (1) (1). A longitudinal groove (8 ″) in which the rib (7) is fitted between (8 ′) and (8 ′) is cut and contact-fitted to the back surface of the step plate to be connected and fixed.
The back surface of the connection plate (8) is a non-slip surface (4) similar to the step plate (2). By this anti-slip surface (4), the back surface of the connecting plate (8) is well frictionally engaged with the loading platform of the loading vehicle to ensure engagement during use of the bridge.
[0012]
FIG. 6 shows a completed assembly diagram of FIG. 5, and the cap case (5) is fitted and fixed to the cornering portion (6).
FIG. 7 shows an end connection plate (9) for grounding the other longitudinal end of the bridge. The end connection plate (9) is a hollow tapered plate having a flat triangular cross section, and a plurality of upper and lower surfaces are provided on the upper and lower surfaces. A lateral anti-slip rib (9 ') is provided and has a reinforcing partition wall (9'') inside. The rear end surface with the taper open has an U-shaped opening, and the upper and lower surfaces of this opening sandwich the step plate (2) at the bridge end and the lower saddle plate (1 ″), and weld them together. Fix it. At this time, the upper surface of the connection plate (9) is on the extended surface of the step plate (2), and the lower surface is inclined upward toward the taper tip, so that the connection plate (9) is stable to the ground when using the bridge. Contact.
[0013]
[Example 2]
FIG. 8 is an enlarged view of the AA portion of FIG. 2 in another example.
As shown in FIG. 9 of the BB cross section and FIG. 10 of the CC cross section, the step plate (2) has a substantially triangular cut-and-raised protrusion whose opening is aligned in one longitudinal direction on the step surface ( 10).
The configuration of the side plate (2) is the same as that in the first embodiment.
The configuration of the end connection plate for grounding is the same as that of the first embodiment (FIG. 7), but the configuration of the end connection plate for the loading platform is shown in FIGS.
11 and 12, the end connecting plate (9) is fixed by inverting the top and bottom surfaces of FIG.
Therefore, the lower surface of the connecting plate (9) extends on the extension line of the lower edge of the side plate (1) (the lower surface of the lower rib plate (1 ″)), and the upper surface is inclined so as to taper down from the end of the step plate (2). So that the vehicle can be smoothly transferred from the step plate (2) to the loading platform. In this case, a hooking plate having an L-shaped cross section on both sides of the lower surface (surface opposite to the step surface) of the front end edge which is closed in a tapered shape to ensure engagement of the connecting plate (9) with the loading platform. 11) is fixed.
Further, instead of the L-shaped hooking plate (11), as shown in FIG. 13, the end connection plate (8) used in FIGS. 5 and 6 can be extended by welding.
[0014]
[Example 3]
This example shows the folding type of the first and second embodiments.
As shown in FIG. 14, the bridge body is divided into left and right parts in the longitudinal direction, and an end connection plate (8) or (9) is connected and fixed to each end of each divided bridge body, and a side plate (1) is connected to each other end. A flat dog-shaped hinge (12) is fixed to the left and right, and the downward-pointed tips of the hinges (12) and (12) of the left and right divided bridge bodies are pivotally supported by pins (13). The upper end plate (1 ′) has an abutment projection (14) that abuts against each other when the left and right bridge bodies are extended in a straight line.
The handle (3) is attached to the left and right bridge bodies, respectively, and the attachment position is set at the center of gravity in the longitudinal direction when folded in half as shown in FIG.
The handle (3) is supported by a pin (15) so that it can be raised and lowered in the direction of the arrow at the outer lower portion of the side plate (1).
[Brief description of the drawings]
FIG. 1 is a front view of a straight type vehicle bridge.
FIG. 2 is a plan view of the same.
FIG. 3 is an AA partial enlarged view of the same.
FIG. 4 is a DD sectional view of the above.
FIG. 5 is a connection explanatory diagram of a bridge body and an end connection plate.
FIG. 6 is a connection completion diagram of the above.
FIG. 7 is a connection completion diagram of a bridge body and another end connection plate.
FIG. 8 is an enlarged view of a portion AA in FIG. 2 showing another example.
9 is a cross-sectional view taken along the line BB in FIG.
10 is a cross-sectional view taken along the line CC of FIG.
FIG. 11 is an assembly explanatory view showing another example of the end connection plate.
FIG. 12 is a connection completion diagram of the above.
FIG. 13 is a view showing still another example of the end connection plate.
FIG. 14 is a front view of a folding vehicle bridge.
FIG. 15 is a plan view of the same.
FIG. 16 is an explanatory view showing a raised and lowered state of a handle.
FIG. 17 is a folded front view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Side plate 1 '... Upper side board 1''... Lower side board 2 ... Step board 3 ... Handle 4 ... Anti-slip surface 5 ... Cap case 6 ... Chamfer part 7 ... Rib 8 ... End part connection board 8' ... Corner Take 8 '' ... Longitudinal groove 9 ... End grounding plate 9 '... Rib 10 ... Cut and raised projection 11 ... Hook plate 12 ... Hinge 13 ... Pin 14 ... Projection 15 ... Pin

Claims (4)

  A vehicle in which the step plate is fixed in the longitudinal direction between the upper and lower central portions of the left and right side plates having a substantially Z-shaped cross section in which the upper and lower plates are dissipated in the opposite directions, with the upper and lower plates facing outward. The bridge main body is a long extruded product of aluminum or aluminum alloy, and a substantially triangular cut-and-raised projection having a uniform opening in the longitudinal direction is arranged on the step surface of the step plate. Bridge for vehicles. A vehicle in which the step plate is fixed in the longitudinal direction between the upper and lower center portions of the left and right side plates having a substantially Z-shaped cross section in which the upper and lower plates are disengaged in the opposite directions, with the upper and lower plates facing outward. A bridge for a vehicle or the like, characterized in that the bridge main body is a long extruded product of aluminum or aluminum alloy, and the entire step surface of the step plate is a non-slip surface using an abrasive . The bridge for a vehicle or the like according to claim 2, wherein an anti-slip sheet or film using an artificial abrasive is bonded to the entire step surface. At both ends in the longitudinal direction of the bridge body for vehicles and the like, the step plate side and the subsequent side plate are obliquely chamfered in the longitudinal direction, and a cap case adapted to the chamfered shape is formed in the chamfered portion. The bridge for vehicles etc. of any one of Claim 1 to 3 fixed to the end surface of the bridge main body.

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