JPH10315983A - Bogie with sled - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bogie which can perform the transportation work easily on a road on which snow is accumulated. SOLUTION: A bogie with sled is provided with a bogie part 12 having a bogie base for loading a cargo, a sled 20, and a sled lifting mechanism 22 for lifting and lowering the sled. It is constituted in such a manner that the sled lifting mechanism lifts and lowers the sled between a sled operation position where the sled is positioned at substantially the same height as a ground contact part of wheels and a sled non-operation position where the sled is positioned at a height above the ground contact part of the wheels.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bogie with a sled which can easily carry on a snowy road.

[0002]

When carrying luggage on a trolley on a snowy road, the wheels of the trolley are buried in the snow, making it difficult to move the trolley smoothly.
The efficiency of transportation work becomes very poor. In order to avoid such a situation, an application has been filed regarding a sled combination trolley that can be turned into a sled on a snow surface (Japanese Patent Laid-Open No. 8-1172).
No. 3).

[0003] However, the sled-combined trolley relates to a two-wheeled trolley, and is configured such that when the sled is used, the wheels are separated from the ground by the ground contact state switching means and the sleds are arranged under the wheels. There is a disadvantage that frequent switching between the wheel and the sled is not easy. That is, assuming a case where a truck is used on a snowy road, for example, it is considered that a case where a user unloads luggage from a vehicle, places it on the truck, pushes the truck and enters the building, as an extremely ordinary example, In this case, the path from the vehicle to the building includes both snowy roads and snow-free roads (for example, road-heated roads). It seems that carrying work is difficult.

[0004] Accordingly, it is an object of the present invention to provide a bogie that can easily carry on a snowy road.

[0005]

According to a first aspect of the present invention, there is provided a bogie with a sled, comprising a bogie section having a chassis on which a load is placed, a sled, and a sled lifting mechanism for raising and lowering the sled. The lifting mechanism moves the sled between a sled operating position where the sled is positioned at substantially the same height as the ground portion of the wheel and a sled non-operating position where the sled is positioned at a height above the ground portion of the wheel. It is characterized in that it is configured to move up and down.

The trolley with a sled according to a second aspect of the present invention is the trolley according to the first aspect, wherein the sled elevating mechanism has a first mounting fixture fixed to the chassis and a second mounting fixture fixed to the sled.
Wherein the first mounting tool and the second mounting tool are 2
The arm is pivotally connected by a pair of arms.
The rotation of the first mounting tool and the second mounting tool is prevented, and the first mounting tool is rotated with respect to the second mounting tool to raise the sled. It is characterized by being able to.

A trolley with a sled according to a third aspect of the present invention is the trolley according to the first or second aspect, wherein the sled and the sled elevating mechanism are detachably attached to the bogie portion. It is.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2, a sleigh carriage generally designated by reference numeral 10 includes a bogie unit 12, a sled 20, and a sled lifting mechanism 22 for raising and lowering the sled 20.

The carriage unit 12 may be of an ordinary type.
An undercarriage 13 for carrying luggage, and a pair of rotary front wheels 14
And a pair of fixed rear wheels 15 and a handle 16 for operating the bogie. The above-mentioned luggage includes garbage and wastes in addition to general luggage. The sled 20 is formed of a suitable material such as steel, stainless steel, aluminum, plastic, or the like.

The sled elevating mechanism 22 has a fixture 24 for attaching the sled elevating mechanism 22 to the chassis 13. As shown in FIG. 1B, the attachment 24 has a U-shape including a pair of side plates 24 a and 24 b and a top plate 24 c connecting the side plates. Fixed by welding.

An upper front shaft 26 is fixed to the side plates 24a and 24b of the fixture 24 in the front and an upper rear shaft 28 is fixed to the rear. The upper end of the front arm 30 is attached to the upper front shaft 26 and the upper end of the rear arm 32 is attached to the upper rear shaft 28 so as to be rotatable.

On the other hand, a fixture 34 for fixing the sled 20 to the sled elevating mechanism 22 is fixed to the upper surface of the sled 20. As shown in FIG.
Like the attachment 24, it has a U-shape including a pair of side plates 34a and 34b and a bottom plate 34c connecting the side plates.

On the side plates 34a and 34b of the fixture 34, a lower front shaft 36 is fixed at a position corresponding to the upper front shaft 26, and a lower rear shaft 38 is fixed at a position corresponding to the upper rear shaft 28, respectively. ing. The lower end of the front arm 30 is attached to the lower front shaft 36 and the lower end of the rear arm 32 is attached to the lower rear shaft 38 so as to be rotatable.

A spring mounting shaft 40 is fixed at a position between the upper front shaft 26 and the upper rear shaft 28 of the mounting tool 24, and is located between the spring mounting shaft 40 and the lower front shaft 36. , A spring 42 is mounted so as to urge the fixture 34 (therefore, the sled 20) upward.

Next, the sled lifting mechanism 22 will be further described with reference to FIGS. 3 and 4, which show the vicinity of the rear arm 32 in detail. A pedal mounting shaft 44 is rotatably mounted behind the upper rear shaft 28 of the mounting tool 24 (that is, on the handle 16 side), and a pedal 46 is fixed to the pedal mounting shaft 44. A stopper release member 45 for releasing the engagement of the stopper arm 50 is fixed to the pedal mounting shaft 44, as will be described later in detail.

On the other hand, a stopper arm shaft 48 is rotatably mounted above the lower rear shaft 38 of the rear arm 32. The stopper arm shaft 48 has a stopper arm 50 extending upward and rearward. One end is fixed. Pedal mounting shaft 44 of mounting tool 24
Slightly rearward, a stopper 52 is attached,
In the warp operation state shown in FIG. 3, the other end 50a of the stopper arm 50 comes into contact with the stopper 52, and the stopper arm 50 is locked.

A spring 5 is provided on the pedal 46 so that the pedal 46 is urged upward even if the pedal 46 is depressed to release the locking of the stopper arm 50 as described later.
4 is attached. Similarly, the stopper arm 50 is urged upward even when the stopper arm 50 is unlocked, as described later.
A spring 56 is mounted.

The operation of the bogie with a sled 10 of the present invention having the above-described structure will be described. For example, when loading luggage on the trolley 10 in a place where snow does not accumulate, first, the trolley 10 with the sled is inactivated (see FIGS. 2 and 4), the luggage is loaded, and the trolley 10 is pushed. . When the truck 10 comes to the snowy road, the rear end 20 of the sled 20
Put one foot on a and push the sled 20 forward. Then, the front arm 30 and the rear arm 32 are connected to the lower front shaft 36,
The other end 50a of the stopper arm 50 is moved in the direction of the arrow in FIG. Is stopped. Then, Figure 1
And the sled operation state shown in FIG. Next, when the trolley 10 comes on a road surface free of snow, the pedal 46
Press down. Then, the distal end 45a of the stopper release member 45 attached to the pedal attachment shaft 44 pushes down the stopper arm 50 to release the engagement by the stopper 52, raises the sled 20, and returns to the sled inoperative state. By repeating the above operations according to the condition of the road surface, an efficient transportation operation can be performed.

The present invention is not limited to the above embodiments of the invention, and various modifications are possible within the scope of the invention described in the claims. It goes without saying that it is included in. For example, in the above embodiment, the description has been given in relation to the four-wheeled vehicle, but the present invention can be applied to a two-wheeled vehicle.

Further, the sled 20 and the sled elevating means 22 may be configured to be detachable from the bogie unit 12. For example, as shown in FIG. 5, a plurality of L-shaped members 58a are attached to the lower surface of the chassis 13 of
The tube member 58b fixed to the second fixture 24 is fitted into the L-shaped member 58a and fixed with bolts or the like, or
By removing the sled 20 from the shape member 58a,
In addition, the sled lifting / lowering means 22 can be easily removed from the carriage 12. Note that a round bar member may be used instead of the tube member 58a.

[0021]

According to the present invention, the sled can be raised and lowered instantly by a simple operation. Therefore, even when a snowy road and a road surface without snow are mixed, the sled can be efficiently moved. Carrying work becomes possible. In addition, by making the sled detachable, it becomes possible to use the sled as an ordinary cart except in winter.

[Brief description of the drawings]

FIG. 1 is a diagram showing a bogie with a sled according to an embodiment of the present invention, in which (a) is a front view showing the bogie with a sled in a sled operating state, and (b) is (a). Line 1b-1b
FIG.

FIG. 2 is a front view showing a bogie with a sled in a sled inoperative state.

FIG. 3 is an enlarged view showing the vicinity of a rear arm in FIG. 1 in detail.

FIG. 4 is an enlarged view showing the vicinity of a rear arm in FIG. 2 in detail.

5A and 5B are views showing a detachable sled lifting mechanism, in which FIG. 5A shows a state in which the sled lifting mechanism is mounted on a bogie unit, and FIG. 5B shows a state in which the sled lifting mechanism is a bogie; FIG. 6 is a diagram showing a state where the unit is detached from a unit.

[Description of Signs] 10 Bogie with sled 12 Bogie section 20 Sled 22 Sled elevating means 30, 32 Arm 46 Pedal 50 Stopper arm

Claims (3)

[Claims] 1. A trolley having a platform for carrying luggage, a sled, and a sled elevating mechanism for elevating and lowering the sled, wherein the sled elevating mechanism has substantially the same height as the ground portion of the wheel. A bogie with a sled which is configured to raise and lower the sled between a sled operating position for positioning the sled at a height above a ground contact portion of the wheel and a sled non-operating position for positioning the sled at a height above the ground portion of the wheel. . 2. A first sled lifting mechanism fixed to a chassis.
And a second fixture fixed to the sled,
The first mounting tool and the second mounting tool are rotatably connected by two pairs of arms, and the first mounting tool and the second mounting tool are locked when the stopper arm is locked in the sled operation position. 2. The device according to claim 1, wherein the first attachment is rotated with respect to the second attachment by raising the sled by releasing the locking of the stopper arm. The trolley with a sled described in. 3. The bogie with a sled according to claim 1, wherein the sled and the sled elevating mechanism are detachably attached to the bogie unit.