JPH0565672U - Boat carrier - Google Patents

Abstract

(57) [Summary] [Purpose] To improve maneuverability and workability. [Structure] A trailer provided with a platform and a turntable is moved by a tractor.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to an improvement of a boat carrier used for transporting a bogie on which a boat is mounted, for example, between a boat yard and a landing place in a marina.

[0002]

[Prior Art]

 Conventionally, as this type of boat carrier, the one described in Japanese Utility Model Publication No. 63-48454 is known. This is a walk-type low lift platform truck equipped with front and rear wheels, which is driven to rotate and has a platform that can be raised and lowered, and one side of the bogie is pivotally mounted on this platform. It consists of a turntable that can be placed. However, although such a vehicle can carry a trolley with a boat mounted on it, it is a modified walk-type low-lift platform truck, and has the drawback of poor mobility and workability.

[0003]

[Problems to be solved by the device]

 The present invention was devised in order to solve the above problems in view of the above problems, and the purpose thereof is to provide a boat carrier with improved maneuverability and workability. is there.

[0004]

[Means for Solving the Problems]

 The boat carrier of the present invention basically comprises a tractor which is provided with wheels and is driven in a reverse direction, a trailer which is provided with wheels on the front side and whose rear side is rotatably provided on the front side of the tractor, and a trailer of the trailer. It is characterized by a platform that can be moved up and down on the front side, and a turntable that can be swung on the platform and on which one side of the bogie is placed.

[0005]

[Action]

 When the platform is raised with respect to the trailer after the front side of the trailer is positioned below the one side of the boat carrier on which the boat is mounted, one side of the boat carrier is lifted by the turntable that follows the platform. When the tractor travels in this state, the trailer follows and the carriage is also followed. When the tractor is turned, the trailer is rotated with respect to the tractor and the carriage is rotated with the turntable with respect to the trailer. When the vehicle arrives at the destination, the platform is lowered to the trailer, and one side of the bogie is lowered by the turntable that follows the trailer, and then the tractor is driven to follow the trailer to the one side of the bogie. Away from.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a boat carrier according to a first embodiment of the present invention. FIG. 2 is a plan view of FIG. FIG. 3 is an enlarged side view of the main part of FIG. The boat carrier 1 is mainly composed of a tractor 2, a trailer 3, a platform 4, and a turntable 5. The tractor 2 is provided with wheels 6 and is driven in a reverse direction. The front and rear vehicle bodies 7 are provided so as to be bendable around the bending axis C, the front and rear wheels 6 provided on these, and the engine 8, the steering wheel 9, provided on the rear vehicle body 7, The vehicle is equipped with a driver's seat 10, and both vehicle bodies 7 are bent and turned by operating a steering wheel 9, and each wheel 6 is driven to rotate by an engine 8. The trailer 3 is provided with wheels 11 on the front side, and the rear side is rotatably provided on the front side of the tractor 2. In this example, the rotation shaft 12 is arranged on the center line O of the front wheel 6 of the tractor 2. The carrier frame 13 has a substantially Z-shaped side surface, and a pair of left and right driven wheels 11 on the front side of the carrier frame 13 are provided on the front side of the carrier frame 13. The carrier frame 13 is provided on the rear side of the carrier frame 13. The yoke 14 and the bracket 15 provided on the front side of the front vehicle body 7 which is inserted into the yoke 14 are pivotally connected to each other by the pivot shaft 12 and are pivoted to the right and left by an angle α. The rotary shaft 12, the yoke 14, and the bracket 15 constitute joint means. The platform 4 is provided on the front side of the trailer 3 so as to be able to move up and down. In this example, the platform 4 has a substantially L-shaped side surface and a substantially inverted U-shaped cross section. A pair of parallel links 16 and a lifting cylinder 17 raises and lowers the carrier frame 13. The lift cylinder 17 can be controlled from the driver's seat 10 of the tractor 2. The parallel link 16 and the elevating cylinder 17 constitute elevating means. The turntable 5 is rotatably provided on the platform 4 and has one side of a bogie (not shown) mounted thereon. In this example, the turntable 5 has a substantially L-shaped side surface, and the platform 4 depends on the rotation shaft 18. It is provided so as to be rotatable with respect to. As the bogie, as described in Japanese Utility Model Publication No. 63-48454, those provided with wheels such as casters at the front and rear of the frame or one having one wheel replaced with a stand are used. Next, the operation will be described based on such a configuration. After the front side of the trailer 3 is positioned below one side of the bogie on which the boat is mounted, the platform 4 is lifted by the lifting cylinder 17 with respect to the trailer 3 as shown in FIG. The turntable 5 lifts one side of the bogie. At this time, the vertical piece of the turntable 5 is engaged with and positioned on one side of the bogie, and wheels or stands such as casters provided on one side of the bogie are released. When the tractor 2 travels in such a state, the trailer 3 follows and the carriage is also followed. When the tractor 2 is turned, the trailer 3 is rotated about the rotating shaft 12 with respect to the tractor 2 and the carrier is rotated about the rotating shaft 18 of the turntable 5 with respect to the trailer 3. Be moved. When reaching the destination, the platform 4 is lowered by the lift cylinder 17 with respect to the trailer 3, and one side of the bogie is lowered by the turntable 5 that follows the trailer 3, and then the tractor 2 is driven to move. The trailer 3 that follows is separated from one side of the bogie. Since the rotating shaft 12 connecting the tractor 2 and the trailer 3 is arranged on the center line O of the front wheel 6 of the tractor 2, the trailer 3 can be smoothly rotated with respect to the tractor 2.

Next, a second embodiment of the present invention will be described with reference to FIGS. 4 to 6. The second embodiment differs from the first embodiment in that not only the trailer 3 can be rotated with respect to the tractor 2 but also the trailer 3 can be lifted and retracted in the front-back direction. That is, the carrier frame 13 of the trailer 3 can be swung around the swivel shaft 12 with respect to the tractor 2, and the depressing frame 21 can be swung around the depressing shaft 20. On the other hand, it is composed of a telescopic frame 22 that can be expanded and contracted in the front-rear direction, and a depression / elevation cylinder 23 is provided between the rotary frame 19 and the elevation / depression frame 21, and an extension / contraction cylinder is provided between the elevation / depression frame 21 and the extension / contraction frame 22. 24 are provided so that the elevation cylinder 23 and the telescopic cylinder 24 can be controlled from the driver's seat 10 of the tractor 2. The elevation shaft 20, the elevation cylinder 23 and the like constitute a depression and elevation step, and the telescopic cylinder 24 and the like constitute telescopic means. In such a structure, when the depression / elevation cylinder 23 and the telescopic cylinder 24 are operated to be shortened, as shown by the chain line in FIG. 22 is shortened. In other words, the wheels 11 can be separated, and the overall length of the carrier frame 13 can be shortened to shorten the overhang in the tractor 2. Therefore, it is possible to greatly improve the traveling performance and the mobility when turning.

Next, a third embodiment of the present invention will be described with reference to FIGS. 7 to 8. In the third embodiment, the swinging range of the trailer 3 during transportation is regulated by using the lifting / lowering means such as the lifting / lowering cylinder 23 for lifting the trailer 3 and the swinging of the trailer 3 is prevented during rotation. This is different from the second embodiment. In other words, the swing frame 19 is provided with an arm 26 which can be lifted around the horizontal axis 25, and a lift cylinder 23 is provided between the upper end of the arm 26 and the lift frame 21, and the arm 26 is provided in front of the front vehicle body 7 of the tractor 2. A channel-type guide 27 is attached so that the lower end of the arm 26 faces the inside of this groove. The arm 26 and the guide 27 constitute a rotation restricting means, and the depression / elevation cylinder 23, the arm 26 and the guide 27 constitute a rotation preventing means. In such a case, the lower end of the arm 26 is slightly separated from the bottom surface of the guide 27 during transportation when the wheels 11 of the trailer 3 are grounded, as shown in FIG. Then, when the trailer 3 rotates leftward or rightward with respect to the tractor 2 by an angle α, the lower end of the arm 26 is brought into contact with one of the left and right flanges of the guide 27 as shown by the chain line in FIG. The above rotation is restricted. When the elevation cylinder 23 is shortened, the lower end of the arm 26 is brought into contact with the bottom surface of the guide 27 to prevent the pivoting frame 19 from pivoting with respect to the tractor 2 and the elevation frame 21 against the pivoting frame 21. Is upset. Therefore, it is possible to prevent the trailer 3 from being unintentionally swung when traveling.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. 9 to 10. In the fourth embodiment, the front wheel 6 of the articulated tractor 2 is also removed, the rear side of the trailer 3 is fixed to the front vehicle body 7 of the tractor 2, and the tractor 2 and the trailer 3 are rotated. It differs from the first embodiment in that the center of motion is matched with the bending axis C of the vehicle body 7 in front of and behind the tractor 2. In such a structure, the center of rotation is at one place as compared with the first embodiment, so that the structure can be simplified and the operability of the vehicle can be improved.

Although the tractor 2 uses the wheel loader in the above embodiment, the present invention is not limited to this, and another vehicle may be used, for example. In the second and third embodiments, the trailer 3 is divided into the elevation frame 21 and the extension / contraction frame 22 so as to be extended / contracted, but the present invention is not limited to this, and the trailer 3 may be extended / contracted in three or more divisions, for example. .. In the second and third embodiments, the trailer 3 is divided into a turning frame 19 and a lifting frame 21 and is pivotally connected by a lifting shaft 20. The trailing shaft 3 and the rotating shaft 12 are provided at different positions. However, the present invention is not limited to this, and, for example, a universal joint that also serves as the rotary shaft 12 and the elevation shaft 20 may be provided at the same position. Although the trailer 3 does not expand and contract in the front-rear direction in the fourth embodiment, the present invention is not limited to this, and the trailer 3 may expand and contract as in the second embodiment.

[0011]

[Effect of the device]

 As described above, according to the present invention, the following excellent effects can be obtained. (1) It consists of a tractor, trailer, platform, and turntable. Especially, since the trailer provided with the platform and turntable is moved by the tractor, maneuverability and workability can be improved. .. (2) Since a tractor is used, it is possible to carry a trolley with a boat on rough roads.

[Brief description of drawings]

FIG. 1 is a side view showing a boat carrier according to a first embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an enlarged side view of a main part of FIG.

FIG. 4 is a side view showing a boat carrier according to a second embodiment of the present invention.

5 is a plan view of FIG.

FIG. 6 is an enlarged view taken along arrow 6-6 of FIG.

FIG. 7 is an enlarged side view of essential parts showing a boat carrier according to a third embodiment of the present invention.

FIG. 8 is a plan view of FIG.

FIG. 9 is a side view showing a boat carrier according to a fourth embodiment of the present invention.

FIG. 10 is a plan view of FIG.

[Explanation of symbols]

 1 Boat Carrier 2 Tractor 3 Trailer 4 Platform 5 Turntable

Claims (1)

[Scope of utility model registration request] 1. A tractor provided with wheels to be driven to rotate, a trailer provided with wheels on a front side, the rear side of which is rotatably provided on the front side of the tractor, and a platform which is provided on the front side of the trailer so as to be vertically movable. And a turntable rotatably mounted on the platform and on which one side of the bogie is mounted, and a boat carrier.