JPH08692U - Tow platform for mobile vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] Increase the number of hulls that can be stored in the storage location,
Also, it can be applied to the movement of all bogies with different height
Improves turnability and stability when moving the dolly. [Structure] A chassis 2 provided with a front wheel 8, a rear wheel 9, an engine 6 for driving the rear wheels, a transmission 7 and a steering wheel 3, and a vertical state by a hydraulic cylinder device 14 mounted on a rear end portion of the chassis. A towing base 25 used for a ship moving vehicle 1 having an elevating / lowering body 24 mounted so as to be able to move up and down while maintaining the same. The towing base 25 includes an upper plate and a base plate, and a space between the upper plate and the base plate. A locking step formed on the locking step, and a locking piece 41 protruding from the locking step,
The upper plate and the base plate of the towing base 25 are connected to the lifting body 24.
And a front end portion E of a carriage D on which the hull M is mounted is locked by the locking step portion and the locking piece.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hull mobile vehicle used for transporting a hull such as a motor boat or a yacht from land to sea or from sea to land, and particularly to a towing platform for towing a carriage on which the hull is mounted. Regarding

[0002]

[Prior art]

 Small motorboats, etc. used for leisure or competition are usually rarely left moored at sea.After use, they are pulled up to the land and placed on a special trolley for storage in a designated storage area. It is common to move and transport to the coast only when in use.

Conventionally, when transporting these boats and the like, a method of moving a dolly on which the hull is mounted using an existing forklift or the like has been used. However, when transporting the hull by a forklift, the side surface of the hull is used. Since the fork is inserted from below to the bottom of the trolley and the hull is lifted to move, the width of the moving passage needs to exceed the entire length of the hull, and the space for securing the moving passage increases and the storage location There is a problem that the number of hulls that can be stored in the ship is limited, and there is also a problem that the hull may have an unstable posture during movement, which may cause collision with other stored hulls. Was.

A hull mobile vehicle for solving this problem is proposed in Japanese Utility Model Laid-Open No. 60-7271 and will be described with reference to FIG. FIG. 5 (A) is a side view of the vehicle hull, and FIG. 5 (B) is a plan view of the vehicle hull. In the figure, a is a mobile vehicle, b is a trolley, 51 is a handlebar, 52 is a forward / backward switch up / down button, 53 is a front wheel, 54 is a storage unit for a hydraulic motor and a battery, 55 is a frame, and 56 is a loading platform (elevation). Body), 57 is a turntable (towing base), 57a is a rising wall portion, and 59 is a rear wheel.

When the carriage b on which the boat is placed is moved, the hull carrier a is moved to the front end portion of the carriage b to the rising wall portion 57a of the tow platform 57, and then a hydraulic pressure (not shown) is applied. When the lifting body 56 is lifted by the cylinder, the casters of the carriage b are floated from the ground, and the carriage b is placed on the tow base 57 of the lifting body 56 and becomes movable. When the hull moving vehicle a turns, as shown in FIG. 5B, the towing platform 57 rotates to gradually change the traveling direction of the vehicle b.

[0006]

[Problems to be solved by the device]

 Since the conventional hull carrier shown in Fig. 5 can be moved by pulling the hull in the front-back direction, the width of the moving passage can be slightly larger than the width of the hull, reducing the space for securing the moving passage. Can be made.

However, since the lifting body 56 and the towing base 57 are provided above the rear wheels and the frame 55, the height of the frame of the carriage b must be higher than that of the towing base 57. Have the problem of having to repair.

Further, since the carriage b is supported on the towing base 57 only by the frictional force, the carriage b cannot smoothly follow the turning of the hull moving vehicle a, and at the time of moving the hull moving vehicle a, If the rear wheel is caught by an obstacle, the carriage b may be disengaged from the towing base 57, and the carriage b may fall off.

Further, since the front wheels 53 are driven, the load of the truck acts on the rear wheels 59 in a free state, and the rear wheels 59 slip and cannot be towed on a road surface or a sloping ground wet with water. It has the problem of being lost.

The present invention solves the above-mentioned conventional problems, and it is possible to reduce the space for securing a movement path and increase the number of hulls that can be stored in a storage location. In addition, it is intended to provide a tow table for a hull mobile vehicle that can be applied to the movement of all bogies of different heights and that can improve the turning performance and stability when the bogie is moved.

[0011]

[Means for Solving the Problems]

 To achieve the above object, the present invention provides a chassis 2 including an engine 6, a transmission 7 and a steering wheel 3 for driving a front wheel 8, a rear wheel 9 and a rear wheel, and a rear end of the chassis 2. A towing base 25 used for a hull mobile vehicle 1 having an elevating body 24 that is mounted on a ship section and is vertically movable by a hydraulic cylinder device 14 while being kept vertically. An upper plate 25a and a base plate 25b, a locking step portion B formed between the upper plate 25a and the base plate 25b, and a locking piece 41 protruding from the locking step portion B. A trolley in which the upper plate 25a and the base plate 25b of the towing base 24 are rotatably and horizontally rotatably attached to the elevating body 24 and the hull M is placed by the locking step B and the locking piece 41. The front end E of D is locked. It should be noted that the numbers added to the above configurations are for comparison with the drawings in order to facilitate understanding of the present invention, and the configurations of the present invention are not limited thereby.

[0012]

[Action]

 In the present invention, for example, as shown in FIG. 6, when the hull mobile vehicle 1 is advanced obliquely with respect to the front end portion E of the carriage D as indicated by an arrow in the drawing, an appropriate locking step portion B 1 of the towing base 25 is set. The front end E comes into contact with the side (Fig. A), and when the hull mobile vehicle 1 is further advanced, the towing base 25 rotates horizontally, and the front end E comes into contact with the entire surface of the locking step B (Fig. B and Figure C). In this state, when the lifting / lowering body 24 is raised by the hydraulic cylinder device 14, the front end portion of the carriage D is raised by the towing base 25, and then the hull mobile vehicle 1 is gradually swung as shown by the arrow. (FIG. D) Then, the towing base 25 also gradually rotates, and the traveling directions of the hull mobile vehicle 1 and the carriage D eventually come to coincide with each other (FIG. E), and the towing vehicle 25 can be conveyed to a predetermined place while being towed. On the contrary, when the dolly D is moved to a predetermined place and separated from the hull moving vehicle 1, the procedure is the reverse of the above.

[0013]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall side view of an embodiment of the hull transportation vehicle of the present invention and a diagram showing an example of its use, FIG. 2 is an enlarged plan view of the rear part of the hull transportation vehicle, and FIG. 3 is an XX in FIG. FIG. 4 is an exploded perspective view showing a state in which the link mechanism is pivotally attached to the chassis.

FIG. 1 shows a hull mobile vehicle according to the present invention and an example of its use. The hull mobile vehicle 1 includes a chassis 2 having a vertically-long rectangular shape in plan view, which is composed of a combination of a plurality of frames (not shown), a driver's cab 5 mounted on the front of the chassis 2 and provided with a handle 3, a shift lever 4, and the like, and an intermediate part. The engine 6 mounted on the chassis 2 which is slightly closer to the front, and the transmission 7 connected to the engine 6 are pivotally supported at an intermediate portion in the left-right direction of the chassis 2 substantially below the cab 5, and 3 through one front wheel 8 which is steered by turning, a propeller shaft 10 pivotally supported by an axle 9 at the rear of the chassis 2 and directly connected to the transmission 7, and a differential gear 11 (see FIG. 2). A vehicle body including driven rear wheels 12 that are driven by the vehicle, a drafting lifting device 13 provided at the rear end of the chassis 2, and a hydraulic cylinder device 1 as a rotating means for moving the lifting and lowering device 13 up and down. When the driver stands on the front part of the driver's cab 5 and carries out a traveling operation, the vehicle can travel in the front-back direction.

Reference numeral 15 is a balance weight for preventing the load applied to the front wheels 8 from decreasing when the hull to be described later is lifted. The wheel base between the front wheels 8 and the rear wheels 12 is set slightly longer to prevent the front part of the vehicle body from being lifted by the load when the hull is towed.

As shown in FIGS. 2 and 3, two hydraulic cylinder devices 14 are arranged on both sides of the differential gear 11 in the front-rear direction. In each hydraulic cylinder device 14, a bracket 18 is fixed downward to a reinforcing plate 17 which is laterally installed between the side frames 16 of the chassis 2, and a rearward U-shaped supporting member 19 is fixed to the rear surface of the bracket 18. By extending the pin 20, the front base end portion thereof is pivotally attached and the retractable piston rod 14a protruding rearward is connected to the parallel link mechanism in the drafting lifting device 13 described in detail below. are doing. A pump for supplying pressure oil to each hydraulic cylinder device 14, an oil supply pipe, a control valve device and the like are not shown.

The pulling / lifting device 13 includes a pair of left and right parallel link mechanisms 23 each having a first triangular link-shaped upper first link 21 and an elongated plate-shaped lower second link 22, and a plurality of flat plates. By combining a combination of a plurality of flat plates or channel members with a vertically oriented lifting body 24 assembled in a box-like shape with the above connection, upper, middle, lower three locking steps A, B, C are provided. And a towing base 25 pivotally attached to the lifting body 24.

Shaft holes 21a, 21b, 21c are formed in each corner of the first link 21, and bearing members 26, 27, 28 are fitted in these shaft holes (see FIG. 4). Each of the first links 21 on the left and right passes through the bearing members 26, 27 facing each other by penetrating the horizontal shafts 29, 30 in the left-right direction so that the left and right ends thereof project slightly from the first links 21. They are connected to each other with a required distance therebetween. In addition, both the first links 21 may be fixed to each other in advance by an appropriate coupling member or the like, and by doing so, the assembling workability can be improved.

At the rear portions of the side frames 16 and 16, a pair of brackets 32 are hung down and fixed to the rear end portions of the left and right reinforcing frames 31 and 31 provided in parallel with each other. A supporting member 34 having a bearing 33 is fixed to the upper side of the bracket 32, and a supporting member 36 having a horizontal shaft 35 which is parallel to the horizontal shaft 29 is fixed to the lower part so as to face each other. (See Figure 4). The left and right ends of the horizontal shaft 29 of the first link 21 are supported by the reinforcing frame 31 by being fitted and inserted in the bearings 33, and can rotate about the bearings 33 as fulcrums. The piston rods 14a are fitted and inserted at the left and right ends of the horizontal shaft 30, respectively, and are appropriately prevented from coming off.

The left and right second links 22 are pivotally supported at their front end sides by fitting the shaft holes 22a bored in the front part thereof and the horizontal shaft 35 in the support member 36, respectively, and at the rear part. The rear end side is pivotally supported by fitting the drilled shaft holes 22b and the left and right ends of the horizontal shaft 37 penetrating the lower part of the elevating body 24 in the left-right direction.

The rear end of the first link 21 is formed with the respective shaft holes 21c and the left and right ends of a horizontal shaft 38 that extends in the left-right direction in parallel with the horizontal shaft 37 at substantially the central portion of the elevating body 24. Are respectively pivoted by fitting. Thus, the line connecting the horizontal axes 29 and 38 of the first link 21 and the horizontal axes 35 and 37 of the second link 22 forms a parallelogram, and parallel links are formed. As a result, the lifting body 24 can move up and down while maintaining the vertical state.

The towing base 25 has its upper plate 25a and base plate 25b pivotally attached to the respective intermediate portions of the upper plate 24a and the bottom plate 24b of the lifting body 24 with vertically oriented pins 39 and 40, respectively. As shown by the arrow in FIG. 2, it can be rotated right and left with respect to the elevating body 24 by a required angle. Reference numeral 41 is a locking piece which is projected upward on the upper and middle locking step portions A and B for locking the carriage described later.

It is preferable that the pins 39 and 40 pivotally attached to the towing platform 25 are brought as close to the axle 9 as possible, and by doing so, the radius of rotation of the towed vehicle is reduced and a small turn is avoided. In addition, the front part of the vehicle body can be prevented from being lifted when the hull is lifted. The locking step C of the base plate 25b is used when lifting and pulling a low carriage. In this case, the carriage can be locked by inserting a pin or the like into a through hole formed in the rear end portion. .

Next, the operation of the above-described embodiment and the procedure for carrying a hull such as a motor boat will be described.

FIG. 1 shows a procedure for pulling up the motor boat M from the sea. First, the front end portion E of the empty carriage D is locked to the locking piece 41 of the upper or middle appropriate locking step portion A or B of the tow platform 25, and then the hull mobile vehicle 1 is moved by the carriage D motor. The boat M is retracted until it is located just below the boat M (state of FIG. 1). In this state, when the hydraulic pump is driven and pressure oil is supplied to each hydraulic cylinder device 14 at the same time, both piston rods 14a extend and the left and right first links 21 connected to the piston rods 14a have horizontal shafts 29 Can be rotated counterclockwise from the side. When the first link 21 rotates, the lifting body 24 pivotally attached to the rear end of the first link 21 and the towing base 25 pivotally attached to the lifting body 24 are parallel links of the first link 21 and the second link 22. By the action, it rises together while maintaining the vertical state.

As a result, the front part of the carriage D is lifted by the towing base 25, and the front part of the motor boat M is lifted up by the support base S which is fixed to the front and has an inverted eight shape in a front view. . Next, when the hull mobile vehicle 1 is gradually moved forward, the boat M is also supported by the carriage D and moves forward, where the hull mobile vehicle 1 advances to some extent, that is, the rear portion of the carriage D appears from the sea surface. At, the lower surface of the rear portion of the motor boat M starts to be supported by the support base S 1 fixed to the rear portion thereof. Then, when the vehicle 1 moves further forward, the entire motor boat M is pulled up from the sea, completely placed on the carriage D, and can be transported to a predetermined place while being towed as it is.

On the other hand, when the hull is transported to the shore and floated on the sea, it is sufficient to submerge the dolly D in a state in which the hull is still mounted on the dolly D in the same manner as above. It can be done without intervention.

[0028]

[Effect of device]

 As is clear from the above description, according to the present invention, the hull mobile vehicle approaches the trolley in an oblique direction and the trolley can be locked on the towing platform to move the hull in the front-rear direction. A width slightly larger than the width will suffice, and the space for securing the movement route can be reduced, and the number of hulls that can be stored in the storage area can be increased.

In addition to this, by raising and lowering the towing platform by means of the lifting and lowering body, it can be applied to the movement of all trucks with different frame heights, and the truck can be operated by the locking step and the locking piece of the towing platform. Since it is securely locked, the dolly can smoothly follow when turning, and even if the rear wheel of the dolly is caught by an obstacle, the dolly does not come off from the tow platform, and turning and stability when moving the dolly. Can be improved. Further, since the rear wheels are driven, slipping of the rear wheels on a road surface or a sloped surface that is wet with water can be prevented even if the load of the bogie acts on the rear wheels.

Further, it is easy to connect and disconnect with the dolly, and by connecting and pulling the dolly, it is possible to carry out the work of transporting the hull from land to sea, or from sea to land extremely easily, and further to the dolly. It is possible to easily and safely perform the work of floating the mounted hull on the sea or lifting it from the sea and mounting it on a dolly, etc., saving labor and workability. Excel.

[Brief description of drawings]

FIG. 1 is an overall side view of an embodiment of a ship moving vehicle of the present invention and a diagram showing an example of use thereof.

FIG. 2 is an enlarged plan view of a rear portion of the ship moving vehicle of FIG.

FIG. 3 is a vertical sectional side view taken along line XX in FIG.

FIG. 4 is an exploded perspective view showing a state in which the link mechanism is pivotally attached to the chassis.

FIG. 5 shows an example of a conventional hull mobile vehicle, FIG. 5 (A) is a side view of the hull mobile vehicle, and FIG. 5 (B) is a plan view of the hull mobile vehicle.

FIG. 6 is a view for explaining the operation of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hull moving vehicle, 2 ... Chassis, 3 ... Steering handle, 6 ... Engine 7 ... Transmission, 8 ... Front wheel, 9 ... Rear wheel, 14 ... Hydraulic cylinder device 24 ... Elevating body, 25 ... Towing platform, 25a ... Top Plate, 25b ...
Base plate 41 ... Locking piece, B ... Locking step, D ... Truck, E ... Front end,
M ... Hull

Claims (1)

[Scope of utility model registration request] 1. A chassis having an engine for driving front wheels, rear wheels, and rear wheels, a transmission, and a steering wheel; and a chassis mounted at the rear end of the chassis and vertically maintained by a hydraulic cylinder device. A towing base used for a ship moving vehicle having an ascending / descending body mounted thereon, wherein the towing base includes an upper plate and a base plate, and a locking step portion formed between the upper plate and the base plate. A top plate and a base plate of the towing base are rotatably and horizontally rotatably attached to the elevating body in a horizontal direction. A tow stand for a moving vehicle of a ship, wherein a front end portion of a carriage on which a hull is placed is locked by a locking piece.