JP3034824B2 - Vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier for carrying a load or the like.

[0002]

2. Description of the Related Art Heretofore, when carrying goods such as magazines and canned juices sold on a platform, a truck provided with wheels on a carrier has been used.

[0003]

However, stairs are provided in the station premises. In order to raise and lower the luggage together with the truck in the stairs, a great deal of labor and work experience are required.

[0004] For this reason, it is conceivable to provide a motor on the bogie to supplement the labor when going up and down stairs. However, in this case, a power cord for supplying power to the motor is required, and the stairs for people to move back and forth. There is a problem that the power cord must be wired in the passage, which obstructs traffic. In order to solve this problem, it is conceivable to mount a battery on the cart, but this leaves many problems such as an increase in the weight of the cart and the capacity of the battery.

[0005] The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a carrier that facilitates ascending and descending stairs without using power.

[0006]

Means for Solving the Problems] In the transport device of the present invention to solve the above problems, is the loading platform for loading the cargo,
Frame and one end protruding from the lower end of the frame
And a lower end of the frame formed in an L-shape by the mounting portion.
On the other side of the part, with the frame inclined
While a support member having a main wheel to be grounded is protruded,
It is a transportation device that can stand alone with the mounting part grounded.
A downward projection near the support member of the frame.
Bar and projecting upward from the lower projecting bar.
The upper projecting bar is protruded at the part of the frame
A long support is supported at the tip of the bar, and the support is
On the holding body, a plurality are arranged along the longitudinal direction of the support,
When the main wheel climbs up a step portion of the stairs, the main vehicle
Abutting the corner of the stepped portion in advance of the wheel,
Guide the wheel to the step along the longitudinal direction of the support
While providing a guide wheel smaller in diameter than the main wheel
The projecting amount of the upper projecting bar from the frame can be changed.
And changing the inclination angle of the support with respect to the frame.
It is configured to be changeable.

In other words, in the case where the cargo is loaded on the loading platform and climbs the stairs, when the main wheel provided on the loading platform climbs on the step portion of the stairs, a plurality of wheels are provided along the support supported by the loading platform. The guide wheels provided side by side sequentially contact the corners of the stepped portion prior to the main wheel,
As each guide wheel rotates, the main wheel is smoothly guided to the step portion along the support.

[0008] Then, the inclination angle of the stairs and the vehicle are operated.
Depending on the worker's height,
Support frame provided with guide wheels that contact the corners
Is changed.

Further , the plurality of guide wheels are connected to the support
The first is provided on both sides and is aligned in the moving direction of the carrier.
And a second guide wheel group.
Between adjacent guide wheels in the other guide wheel group
The inner ring was supported.

That is, the plurality of guide wheels are supported by the support wheels.
The first and second guide wheel groups respectively provided on both sides of the body
Of adjacent guide wheels in one guide wheel group.
The guide wheels of the other guide wheel group are supported between
You. For this reason, in both guide wheel groups,
The gap formed between the guide wheels in the other guide wheel group
Buried by

[0011]

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are views showing a carrier 1 according to the present embodiment. The carrier 1 includes a carrier 2 on which cargo is loaded, and left and right tires 3 provided as main wheels provided on the carrier 2. , 4 and auxiliary means 5 supported by the carrier 2.

The loading platform 2 is formed in an L-shaped side surface by a frame 11 in which a pipe material is formed in a U-shape, and a mounting portion 12 projecting substantially perpendicularly from a lower end of the frame 11. ing. At the upper end of the frame 11, a resin member is coated on the pipe material.
A grip portion 13 to be gripped is formed. In addition, V-shaped support members 14 and 15 projecting to the opposite side of the mounting portion 12 are provided at left and right portions of the frame 11 at a lower portion of the frame 11. A shaft 16 that extends in the left-right direction of the carrier 1 is fixed to the tip of the 15. The left and right tires 3 and 4 each having a built-in drum type brake (not shown) are provided at both ends of the shaft portion 16, and thereby, as shown in FIG. In the meantime, while the mounting part 12 described above is self-standing in a state of being in contact with the ground, as shown in FIG. 1, in a state of being inclined obliquely, the left and right tires 3 4 is grounded so that the carrier 1 can move.

The auxiliary means 5 includes the support member 1
4 and 15, a lower protruding bar 21 protruding in the direction in which the support members 14 and 15 protrude;
The upper protruding bar 22 fixed to a portion of the frame 11 on the gripping portion 13 side, and the lower and upper protruding bars 21 and 22
Elongate left and right supports 23, 24 extending in the longitudinal direction of
, And a plurality of guide wheels 25 having a smaller diameter than the left and right tires 3 and 4 provided side by side along the longitudinal direction of the left and right supports 23 and 24. The guide wheels 25 are provided on both left and right sides of the support members 23 and 24, respectively (see FIG. 2), and left and right guide wheel groups 26 and 27 are arranged in the moving direction of the carrier 2. It consists of. Guide wheels 25, 25 in a right guide wheel group 27 are journaled between adjacent guide wheels 25, 25 in a left guide wheel group 26, and as shown in FIG. , 4 ride on the step portion 29 of the stairs 28, the guide wheels 25,... Provided on the left and right supports 23, 24 And the left and right tires 3 and 4 are guided to the step 29 along the longitudinal direction of the left and right supports 23 and 24.
The length of the left and right supports 23, 24 is such that each of the guide wheels 25,. Corner portions 31 of the two step portions 29, 29 of the step and the second step,
31 are set at the same time.

Further, a plurality of through holes 41,... Are provided along the longitudinal direction of the side of the upper protruding bar 22, and the frame to which the upper protruding bar 22 is fixed. An insertion hole 42 is provided at the portion 11. Thereby, the through-hole 41 selected from the plurality of through-holes 41,...
While matching with the insertion hole 42 of the frame 11,
By inserting the fixing pin 43 through both holes 41 and 42, the amount of protrusion of the upper protruding bar 22 from the frame 11 can be easily changed, and the plurality of guide wheels 25,
Are provided so that the inclination angles of the left and right supports 23 and 24 with respect to the carrier 2 can be changed.

When the left and right tires 3 and 4 provided on the loading platform 2 ride on the step portion 29 of the stairs 28 when the luggage is loaded on the carrier 1 having the above structure and climbs the stairs 28, Left and right supports 23 supported by the loading platform 2,
A plurality of guide wheels 25 provided side by side along 24 are provided.
Are successively brought into contact with the corners 31 of the stepped portion 29 prior to the left and right tires 3 and 4, and each of the guide wheels 25,.
By rotating, the left and right tires 3 and 4 can be smoothly guided to the step portion 29 along the left and right supports 23 and 24. Thereby, the carrier 1
Can be moved diagonally along the stairs 28,
When the left and right tires 3 and 4 come into contact with the stepped portion 29 of the stairs 28, the vehicle 1 is lifted vertically and the left and right tires 3 and 4 have to be moved onto the stepped portion 29 compared with the conventional method. Thus, the labor can be reduced without using power.

The height H and the depth H of the step portion 29 of the stairs 28 provided in the station premises were investigated. As a result, the height H was 170 mm and the depth W
Was 340 mm. In the case of such a staircase 28, the guide wheels 25 of the left and right supports 23, 24 supported by the carrier 1 are connected to the two step portions 29 of the first and second steps.
The carrier 1 can be maintained at an angle of 27 degrees in a state where the carrier 1 is simultaneously brought into contact with the corners 31, 31 in 29, and the carrier 1 can be moved along the stairs 28 while maintaining this state. it can. In other words, the carrier 1 can be lifted up by laying a plate along the stairs 28 at an inclination angle of 27 degrees and climbing a 27-degree slope formed by the plate. Therefore, as compared with the case where the carrier 1 is vertically lifted at the step portion of the stairs 28, the carrying force can be suppressed to 47%, and the labor can be reduced by half. Further, since the vertical movement of the carrier 1 is not required, it is possible to prevent the collapse of the load due to the vibration generated during the vertical movement when going down the stairs, so that the work experience for preventing the collapse of the load is also unnecessary. . Further, when descending the stairs 28, a brake can be used together. Therefore, it is easy to move up and down the stairs.

The plurality of guide wheels 25,.
The left and right support members 23, 24 are provided with left and right guide wheel groups 26, 27 provided on both sides thereof, respectively. Between the adjacent guide wheels 25, 25 in the left guide wheel group 26, the right guide wheel group 27 is provided. A guide wheel 25 is pivotally supported. For this reason,
In both guide wheel groups 26 and 27, adjacent guide wheels 25,
The gap formed between the guide wheels 25 can be filled by the guide wheels 25 in the other guide wheel group, as shown in FIG. Thus, each guide wheel 25,.
The vibration of the carrier 1 that occurs when the vehicle 1 passes through the corner 31 can also be reduced. In addition, each guide wheel 2
Are smaller in diameter than the left and right tires 2 and 3, the effect of preventing the collapse of the load due to the vibration of the carrier 1 can be further enhanced.

Further, a plurality of through holes 41,... Are provided on the side of the upper protruding bar 22 along its longitudinal direction. The left and right supports 23, provided with a plurality of the guide wheels 25,...
Since the angle of inclination of the vehicle 24 with respect to the carrier 2 can be changed, the stepped portion 29 is arranged ahead of the left and right tires 3 and 4 according to the angle of inclination of the stairs 28 and the height of the operator operating the carrier 1. Guide wheel 2 abutting on corner 31 in
Loading bed 2 of left and right supports 23, 24 provided with 5,.
Can be changed. Therefore, the left and right supports 2 provided with the guide wheels 25,.
As compared with the case where the angle between 3, 3 and the bed 2 is fixed, handling becomes easier and the carrier 1 can be highly convenient.

In this embodiment, the left and right tires 3 and 4 have a drum type brake as an example. However, the present invention is not limited to this. It may be.

[0021]

As described above, when the cargo is loaded on the loading platform and the vehicle goes up the stairs, the main wheels provided on the loading platform are supported by the loading platform when climbing onto the steps of the stairs. A plurality of guide wheels provided side by side along the support sequentially contact the corners of the stepped portion prior to the main wheel, and each guide wheel rotates, thereby supporting the main wheel. The guide can be smoothly guided to the step portion along the body. This allows the carrier to move diagonally along the stairs, so when the main wheels abut against the steps of the stairs, lift the carriers vertically and move the main wheels onto the steps. Compared with the conventional case, the labor can be reduced without using power. Further, since the vertical movement of the carrier is not required, it is possible to prevent the collapse of the load due to the vibration generated at the time of the vertical movement when going down the stairs, and the work experience for preventing the collapse of the load is also unnecessary. Therefore, it is easy to move up and down the stairs.

[0022] Then, the support is attached to the frame.
The angle of the stairs can be changed so that the stairs
Depending on the angle of inclination and the height of the worker operating the carrier, the main wheels
Guide wheels that come into contact with the corners of the step
To change the angle of inclination of the
The support provided with the guide wheels and the carrier
Easy handling compared to fixed angle
It becomes a highly convenient vehicle.

Further , the plurality of guide wheels are provided on the support.
The first and second guide wheel groups provided on both sides respectively make up the structure.
Between adjacent guide wheels in one guide wheel group,
About the one that supports the guide wheel in the other guide wheel group
Is formed between adjacent guide wheels in both guide wheel groups.
Gaps filled by guide wheels in the other guide wheel group
Can be As a result, each guide wheel is located at the step
Also reduces the vibrations of the vehicle when passing through corners
Can further enhance the effect of preventing collapse of cargo.
Can be.

[0024]

[Brief description of the drawings]

FIG. 1 is a diagram showing a use state of an embodiment of the present invention.

FIG. 2 is a bottom view of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carrier 2 Carrier 3 Left tire 4 Right tire 23 Left support 24 Right support 25 Guide wheel 26 Left guide wheel group 27 Right guide wheel group 28 Stairs 29 Stepped part 31 Corner part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-177177 (JP, A) JP-A-9-240479 (JP, A) Fully open 1986-142670 (JP, U) Really open 1980- 19080 (JP, U) Japanese Utility Model 1-136061 (JP, U) Registered utility model 3011965 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B62B 5/02

Claims (2)

(57) [Claims] A loading platform for loading a load includes a frame and the frame.
At the lower end of the frame,
L-shaped, the other at the lower end of the frame
Main vehicle that is grounded on the side with the frame inclined
While a support member having a ring is protruded, the mounting portion is connected to the support member.
A carrier that is capable of standing on its own in a grounded state, and has a downwardly projecting bar near the support member in the frame.
At the upper side of the lower protruding bar.
The upper projecting bar protrudes from the frame, and the two projecting bars
A long support at the tip of the support, and the support
In a plurality, arranged along the longitudinal direction of the support,
When the main wheel climbs up to the step of the stairs,
Precedingly contacting the corner portion of the step portion in sequence, and
Is guided to the step portion along the longitudinal direction of the support.
While providing a guide wheel smaller in diameter than the main wheel, the amount of protrusion of the upper protruding bar from the frame can be changed.
Angle of inclination of the support relative to the frame
A transportation device characterized in that the degree can be changed . 2. The vehicle according to claim 1, wherein the plurality of guide wheels are provided on both sides of the support, and include a first and a second guide wheel group arranged in a moving direction of the carrier. The carrier according to claim 1, wherein a guide wheel in the other guide wheel group is pivotally supported between adjacent guide wheels.