JPH05131959A - Trailer - Google Patents

Abstract

(57) [Abstract] [Purpose] To obtain a trailer that can improve the workability of unloading a self-propelled device without a retracting function from the bed. [Structure] A trailer 10 is a connecting rod 12 connected to a vehicle.
And a loading platform 14 which is supported by the connecting rod 12 and on which a load such as a snowmobile 13 is placed.
It is composed of a base member 40 that constitutes the lower portion of the loading platform 14 and a mounting table 42 that is placed on top of the base member 40. A bearing 48 is embedded in a substantially central portion of the upper surface of the base member 40, and a center pin 50 is axially supported by the bearing 48. The upper end portion 50B of the center pin 50 is embedded and fixed in the lower portion of the mounting table 42, and the mounting table 42 is rotatable with respect to the base member 40 in plan view with the axis of the center pin 50 as the rotation center P. ing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trailer for carrying a snowmobile or the like, which is towed by a vehicle.

[0002]

[Prior Art]

Conventionally, when moving a snowmobile or the like to a destination, the snowmobile or the like is mounted on a trailer,
The trailer is moved by being pulled by a vehicle, and an example of this trailer is disclosed in Japanese Utility Model Laid-Open No. 58-119476.

As shown in FIG. 9, in this trailer 70, a loading platform 72 for mounting a snowmobile 71 or the like is supported by a connecting rod 73, and is provided at one end of the connecting rod 73. The hook 74 is connected to a vehicle (not shown).

Further, in this trailer 70, when the snowmobile 71 is mounted on the loading platform 72, as shown in FIG. 9, the loading platform 72 is tilted so that one end 72A is lowered to the ground 76, and in this state. Snowmobile 7
1 is moved forward, mounted on the loading platform 72 (state of FIG. 9), and then the loading platform 72 is returned horizontally.

[0006]

However, in the case where the trailer 70 is equipped with a self-propelled device such as a snowmobile 71 that does not have a backward movement function, the self-propelled device such as the snowmobile 71 is mounted on the loading platform 72. At the time of unloading, after tilting the loading platform 72 (state of FIG. 9), the worker dragged the self-propelled device such as the snowmobile 71 backward and lowered it. For this reason, it is difficult to unload the self-propelled equipment such as the snowmobile 71 from the bed 72, and the workability is extremely poor.

In view of the above facts, an object of the present invention is to obtain a trailer capable of improving the unloading workability of a self-propelled device having no retracting function from the bed.

[0008]

A trailer according to claim 1 of the present invention is a trailer having a connecting rod connected to a vehicle and a load carrier supported by the connecting rod and on which a load is placed. A base member that constitutes a lower portion, a mounting table provided on the upper portion of the base member, and the mounting table provided between the base member and the mounting table are rotatable with respect to the base member in a plan view. And a connecting means for connecting.

A trailer according to a second aspect of the present invention is the trailer according to the first aspect, wherein the connecting means includes a shaft for rotatably supporting the mounting table on the base member, and rotation of the mounting table. A first roller pair provided equidistantly across the center and a distance different from the distance from the rotation center of the mounting table of the first roller pair provided equidistantly across the rotation center of the mounting table. The movement of the first roller pair is regulated when the second roller pair and the mounting table provided on the base member are in a predetermined position and a position rotated by 180 degrees from the predetermined position. The first restricting means and the mounting table provided on the base member restrict the movement of the second roller pair when the mounting table is at the predetermined position and when the mounting table is rotated by 180 degrees from the predetermined position. With the second regulation means It is characterized by having a.

The trailer according to a third aspect of the present invention is the trailer according to the first aspect, which is supported by the base member so as to be openable and closable, and abuts a side portion of the mounting table when closed. It features a rear gate that blocks rotation.

A trailer according to a fourth aspect of the present invention is characterized in that, in the trailer according to the first aspect, there is provided a dumping mechanism capable of inclining the loading platform with respect to the connecting rod.

[0012]

When a self-propelled device having no retracting function, for example, a snowmobile, is mounted on the cargo bed of the trailer according to claim 1 of the present invention, an inclined table or the like is brought into contact with the cargo bed supported by the connecting rod. Then, the snowmobile is moved forward to mount the snowmobile on a mounting table provided above the base member of the luggage carrier.

When the snowmobile is to be unloaded from the cargo bed of the trailer, the mounting table rotatably connected to the base member by the connecting means in plan view is rotated by 180 degrees, so that the front side of the snowmobile is connected to the towing vehicle. You can turn to the other side. Therefore, in this state, the snowmobile can be easily removed from the luggage carrier by bringing the inclined platform or the like into contact with the luggage carrier and advancing the snowmobile. Therefore, it is possible to improve the workability of unloading from the cargo bed of the snowmobile.

In the trailer carrier according to claim 2,
When the snowmobile is mounted, the movement of the first roller pair is regulated by the first regulation means, and the movement of the second roller pair is regulated by the second regulation means. Therefore, the mounting table does not rotate during the mounting work, and the workability is improved. Also, when the mounting table is rotated 180 degrees with respect to the base member about the axis as the rotation center and the snowmobile is unloaded from the loading platform of the trailer, the movement of the first roller pair is restricted by the first restriction unit. ,
The movement of the second roller pair is regulated by the second regulation means. Therefore, the mounting table does not rotate during the unloading work, and the workability is improved.

Further, when the snowmobile is mounted on the cargo bed of the trailer according to claim 3 and the trailer is towed by the vehicle, the closed rear gate comes into contact with the side portion of the mounting table to prevent rotation of the mounting table. Therefore, it is not necessary to fix the mounting table to the base member with a rope or the like, and the workability at the time of mounting can be improved. Further, by deploying the rear gate, the workability of loading the snowmobile onto the cargo bed and the workability of unloading from the cargo bed are improved.

Further, the trailer carrier according to claim 4,
When mounting a snowmobile or when unloading the snowmobile from the trailer's loading platform, the dump mechanism tilts the loading platform with respect to the connecting rod and one end of the loading platform approaches the ground. It is not necessary to separate the connecting rod from the vehicle at the time of work and unloading work from the loading platform, and the workability of loading the snowmobile onto the loading platform and the unloading workability from the loading platform are improved.

The load to be mounted on the trailer of the present invention is not limited to a self-propelled device such as a snowmobile that does not have a retract function, but a mount other than a self-propelled device that does not have a retract function such as a snowmobile. May be installed, in this case,
By rotating the mounting table 180 degrees when lowering the mounted object, there is an effect that the mounted object can be lowered from the front side at the time of mounting.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the trailer of the present invention is shown in FIGS.
This will be described with reference to FIG.

As shown in FIG. 1 (A), the trailer 10 of this embodiment includes a connecting rod 12 connected to a vehicle, and a loading platform 14 supported by the connecting rod 12 and on which a load such as a snowmobile 13 is placed. Is equipped with.

As shown in FIG. 2, the connecting rod 12 is provided with a traction shaft 16, and one end of the traction shaft 16 (the right end in FIG. 2) is connected to a rear portion of a vehicle (not shown). It is said that. Also, the tow shaft 1
A pipe-shaped bearing member 20 is welded to the other end of 6.

As shown in FIG. 3, an axle 24 that connects the left and right wheels 22 (see FIG. 2) passes through the bearing member 20. Further, the bearing member 20 is provided with a grease nipple 26 for injecting grease into a gap 28 between the bearing member 20 and the axle 24.

As shown in FIG. 2, the portion of the traction shaft 16 at a predetermined distance from the bearing member 20 mounting portion and the axle 2
The vicinity of the wheel 22 mounting portion of No. 4 is connected by a reinforcing shaft 30. One end 30 of the reinforcing shaft 30
A is the traction shaft 1 via the bracket 32.
It is fixed at 6. On the other hand, a bearing member 32 having the same structure as the bearing member 20 is coupled to the other end 30B of the reinforcing shaft 30, and an axle 24 penetrates these bearing members 32. Leaf springs 34 are provided between the bearing member 32 of the axle 24 and the wheel 22 mounting portion.

As shown in FIG. 4, the leaf spring 3
The central portion in the longitudinal direction of 4 is rotatably supported by the axle 24 in a side view. Further, both longitudinal end portions 34A and 34B of the leaf spring 34 are rotatably connected to the lower portion of the cargo bed 14 in a side view, and form a part of the dump mechanism.

As shown in FIG. 5, a damper 36 as another part of the dump mechanism is mounted between the bracket 32 of the traction shaft 16 and the substantially central portion of the lower portion of the loading platform 14. One end 36A of the damper 36 is rotatably instructed to the lower part of the loading platform 14 in a side view.
The other end 36 </ b> B of 6 is rotatably supported on the bracket 32 in a side view. Therefore, the platform 14 is rotatable in the clockwise direction in FIG. 5 (direction of arrow A in FIG. 5) and the counterclockwise direction in FIG. 5 (direction of arrow B in FIG. 5) about the axle 24 as a rotation center in a side view. The end portion 14A of the loading platform 14 on the side opposite to the hook 18 approaches the ground 15.

As shown in FIG. 4, the loading platform 14 is the loading platform 1
The base member 40 constitutes the lower part of the base member 4, and the mounting table 42 is placed on top of the base member 40.

As shown in FIG. 1A, the base member 4
0 has a rectangular shape along the towing shaft 16 in a plan view, and the hook 1 extends from the hook 18 side end portion 40A.
A frame 44 that is bent in a dogleg shape toward the 8 side projects. The bent portion 44A of the frame 44 is attachable to and detachable from the loading platform fixing means 46 provided on the traction shaft 16, and when the loading platform 14 is tilted, the frame 4 is provided.
The connection between the bent portion 44A of No. 4 and the bed fixing means 46 is released.

As shown in FIG. 6, a bearing 48 is embedded in the upper surface of the base member 40 at a substantially central portion thereof.
A center pin 50 as a shaft of the connecting means is pivotally supported by the bearing 48. The lower end portion 50A of the center pin 50 projects below the base member 40, and a pull-out prevention pin 52 is attached. The upper end portion 50B of the center pin 50 has a larger diameter than other portions, and is embedded and fixed in the lower portion of the mounting table 42. Therefore, FIG.
As shown in (B), the mounting table 42 has the center pin 50.
The center of rotation is the center of rotation P in the clockwise direction of FIG.
(B) arrow C direction and FIG. 1B counterclockwise direction (FIG. 1).
(B) in the direction of arrow D).

As shown in FIG. 1B, the mounting table 42 has a rectangular shape which is substantially the same as the base member 40 in a plan view. On the lower surface of the mounting table 42, one first roller is provided at a position equidistant L1 from the rotation center P in the width direction of the mounting table 42 (vertical direction in FIG. 1B) with the rotation center P interposed therebetween. A pair 52 is provided, and the first roller pair 52 is provided.
From the rotation center P of the mounting table 42 as a rotation center
One second roller pair 54 is provided at a position of a distance L2 (the distance L2 is different from the distance L1) from the rotation center P, which is rotated by one degree. These roller pairs 52, 5
4 is adapted to roll on the upper surface of the base member 40 when the mounting table 42 is rotated.

As shown in FIG. 1A, the base member 4
On the upper surface of 0, as a first restricting means, at a position equidistant from the rotation center P of the mounting table 42 in the width direction of the base member 40 (vertical direction in FIG. 1A) with the rotation center P interposed therebetween. A pair of hemispherical recesses 56 is formed, and the pair of recesses 56 is used as a center of rotation about the rotation center P of the mounting table 42.
A pair of hemispherical recesses 58 serving as second restricting means are formed at a position of a distance L2 from the center of rotation P rotated by 80 degrees.

Therefore, with the longitudinal direction of the mounting table 42 and the longitudinal direction of the base member 40 in the same direction, the mounting table 42 is in the same direction.
When the base member 40 and the base member 40 overlap each other, as shown in FIG. 7, a pair of recesses 56 formed in the base member 40,
58, roller pairs 5 provided on the mounting table 42, respectively.
2 and 54 are depressed so that the rotation of the mounting table 42 is restricted.

As shown in FIG. 8, a rear gate 62 is attached to the end portion 40B of the base member 40 on the side opposite to the hook 18, and the rear gate 62 has a hinge portion 62.
It can be opened and closed by A. Also, the rear gate 6
At the time of the second closing, the hinge portion 62A comes into contact with the side portion 42A at the longitudinal end of the mounting table 42 to reliably prevent the mounting table 42 from rotating.

Next, the operation of this embodiment will be described. When a self-propelled device having no retracting function, for example, a snowmobile 13, is mounted on the loading platform 14 of the trailer 10 of the present embodiment, the loading platform 14 supported by the connecting rod 12 is tilted as shown in FIG. Then, in this state, the snowmobile 13 is moved forward to mount the snowmobile 13 on the mounting table 42 provided above the base member 40 of the luggage carrier 14.

Further, when the snowmobile 13 is unloaded from the cargo bed 14 of the trailer 10, the mounting table 42 is rotated 180 degrees with respect to the base member 40 with the center pin 50 as the center of rotation, and the front side 13A of the snowmobile 13 is rotated. Can be turned to the opposite side of the towing vehicle (state of phantom line in FIG. 5). Therefore, the snowmobile 13 can be easily unloaded from the luggage carrier 14 by inclining the luggage carrier 14 and moving the snowmobile 13 forward. Therefore, it is possible to improve the workability of unloading the snowmobile 13 from the loading platform.

Further, in the trailer 10 of the present embodiment, when the snowmobile 13 is mounted on the loading platform 14, the first roller pair 52 enters the pair of recesses 56, and the movement of the first roller pair 52 is prevented. It is regulated and the second roller pair 54
Enter into the pair of recesses 58, and the movement of the second roller pair 54 is restricted. Therefore, the mounting table 42 does not rotate during the mounting work, and the workability is improved. Also, when the mounting table 42 is rotated 180 degrees with respect to the base member 40 with the center pin 50 as the center of rotation and the snowmobile 13 is unloaded from the loading platform 14, the first roller pair 52 enters the pair of recesses 56. However, the movement of the first roller pair 52 is regulated, the second roller pair 54 enters the pair of recesses 58, and the movement of the second roller pair 54 is regulated. Since the mounting table does not rotate, workability is improved.

Further, in the trailer 10 of this embodiment, the snowmobile 13 is mounted on the loading platform 14, and the trailer 1 is mounted on the vehicle.
When the 0 is towed, as shown in FIG. 8, the hinge portion 62A of the closed rear gate 62 causes the side portion 4 of the mounting table 42 to move.
Since the mounting table 42 is prevented from rotating by coming into contact with 2A, it is not necessary to fix the mounting table 42 to the base member 40 with a rope or the like, and workability at the time of mounting can be improved. Further, as shown in FIG. 5, by deploying the rear gate 62, workability of mounting the snowmobile 13 on the cargo bed 14 and unloading workability from the cargo bed 14 are improved.

In the trailer 10 of this embodiment, when the snowmobile 13 is mounted on the cargo bed 14,
When the snowmobile 13 is unloaded from the snowmobile 13, the luggage carrier 14 can be rotated in the direction of arrow B in FIG. 5 with the axle 24 as the center of rotation in a side view, so that the end portion 14A of the luggage carrier 14 can approach the ground 15. It is not necessary to separate the connecting rod 12 from the vehicle at the time of mounting the 13 onto the platform 14 and unloading it from the platform 14, and the snowmobile 1
The loading workability of the No. 3 on the loading platform 14 and the unloading workability from the loading platform 14 are improved. Further, by providing the damper 36, it is possible to prevent the loading platform 14 from rapidly rising and falling.

The mounted object to be mounted on the trailer 10 of the present embodiment is not limited to a self-propelled device such as a snowmobile that does not have a backward function, but a device other than a self-propelled device that does not have a backward function such as a snowmobile. An object may be mounted. In this case, when the mounting object is unloaded, it is possible to lower the mounting object from the front side at the time of mounting by rotating the mounting table by 180 degrees.

Further, the trailer shaft 16 of the trailer 10 of this embodiment may have a double structure so that it can be extended and contracted to a length of about twice the length. In this case, by extending the towing shaft 16 when the boat is mounted on the loading platform 14,
Without bringing the vehicle towing the trailer 10 close to the waterside and without disconnecting the trailer 10 from the vehicle,
The effect is that the boat can be landed.

[0039]

According to the present invention, since the mounting table is rotatably connected to the base member by the connecting means in plan view, the workability of unloading a self-propelled device having no retracting function from the loading platform is improved. It has an excellent effect of being able to.

[Brief description of drawings]

FIG. 1A is a plan view showing an upper surface of a base member of a trailer of an embodiment of the present invention, and FIG. 1B is a plan view showing a lower surface of a mounting table of a trailer of an embodiment of the present invention. is there.

FIG. 2 is a plan view showing a connecting rod of a trailer according to an embodiment of the present invention.

3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. 2 with hatching omitted.

5 is a cross-sectional view taken along line 5-5 of FIG. 2 with hatching omitted.

FIG. 6 is a side sectional view showing a connecting portion between the base member and the mounting table of the trailer of the embodiment of the present invention.

FIG. 7 is a side sectional view showing rotation restricting means of the base member of the trailer of the embodiment of the present invention.

FIG. 8 is a side view showing a rear gate of the trailer of the embodiment of the present invention.

FIG. 9 is a side view showing a trailer of a conventional example.

[Explanation of symbols]

 10 Trailer 12 Connection Rod 13 Snowmobile (Mounted Object) 14 Loading Bed 34 Leaf Spring 36 Damper (Dump Mechanism) 40 Base Member 42 Mounting Table 42A Side 50 Center Pin (Axis) 52 First Roller Pair 54 Second Roller Pair 56 Pair of recesses (first restricting means) 58 Pair of recesses (second restricting means) 62 Rear gate 62A Hinge part P Rotation center

Claims (4)

[Claims] 1. A trailer having a connecting rod connected to a vehicle and a loading platform supported by the connecting rod and on which a load is mounted, the base member constituting a lower portion of the loading platform, and provided on an upper portion of the base member. And a connecting means that is provided between the base member and the mounting table to rotatably connect the mounting table to the base member in a plan view. .. 2. The connecting means includes a shaft for rotatably supporting the mounting table on the base member, a first roller pair provided at an equal distance with the center of rotation of the mounting table sandwiched therebetween, and A second roller pair provided at a distance different from the rotation center of the mounting table of the first roller pair with the rotation center of the mounting table interposed therebetween, and the mounting table provided on the base member. When it reaches a predetermined position and 1 from this predetermined position
First restricting means for restricting the movement of the first roller pair when it reaches a position rotated by 80 degrees, and a case where the mounting table provided on the base member reaches the predetermined position and from this predetermined position. The trailer according to claim 1, further comprising a second restricting unit that restricts movement of the second roller pair when the position is rotated by 180 degrees. 3. The base member is supported to be openable and closable,
The rear gate is provided, which abuts against a side portion of the mounting table when it is closed to prevent rotation of the mounting table.
Trailer as described. 4. The trailer according to claim 1, further comprising a dump mechanism capable of inclining the loading platform with respect to the connecting rod.