Two-wheel barrow loading device

Abstract

To make it possible to lift a two-wheel barrow with light force when loading the two-wheel barrow onto a vehicle.SOLUTION: A two-wheel barrow loading device (30) is so formed that a two^wheel barrow can be loaded on a vehicle rear face to which a spare tire (15) is fitted. The two-wheel barrow loading device is provided with: a base member (31) fixed to a fitting part (14) for a spare tire; a bar member (34) which is so supported by the base member as to be capable of oscillating in a vertical direction; and a damper member (36) which applies upward pressing force to the bar member. The bar member is provided with a tow-wheel barrow holding part (35), and ascending and descending of the two-wheel barrow are assisted by the damper member.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a two-wheeler mounting device.

Background Art

[0002] Conventionally, in order to mount a two-wheeler on a four-wheeled vehicle, a two-wheeler mounting device has been known to be installed on the rear side of a spare tire at the rear of the vehicle (see, for example, Patent Document 1). The two-wheeler mounting device described in Patent Document 1 includes a carrier plate on the rear side of the spare tire and a pair of left and right clamps at the upper edge of the carrier plate. The carrier plate is screwed to a mounting boss protruding rearward from the spare tire via a spacer, and the top tube of the two-wheeler is held by the pair of left and right clamps on the carrier plate, so that the two-wheeler is mounted on the two-wheeler mounting device at the rear of the vehicle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the two-wheeler mounting device described in Patent Document 1 requires lifting the two-wheeler manually. In recent years, heavy vehicles that are difficult to lift manually, such as electric assist bicycles and electric mopeds, have also emerged.

[0005] The present invention has been made in view of such points, and an object thereof is to provide a two-wheeler mounting device that can lift a two-wheeler with a light force when mounting the two-wheeler on a vehicle.

Means for Solving the Problems

[0006] The two-wheeler mounting device according to one aspect of the present invention is a two-wheeler mounting device that can be mounted on a two-wheeler at the rear of a vehicle where a spare tire is mounted. The two-wheeler mounting device includes a base member fixed to a mounting portion for the spare tire, a bar member swingably supported in the vertical direction on the base member, and a damper member that applies an upward pressing force to the bar member. A holding portion for the two-wheeler is provided on the bar member, and the damper member assists in raising and lowering the two-wheeler to solve the above problems.

Effects of the Invention

[0007] According to the two-wheeler mounting device of one aspect of the present invention, with the two-wheeler held by the holding portion of the bar member, an upward pressing force is applied to the bar member by the damper member. Since the pressing force of the damper member acts upward on the bar member, the two-wheeler can be lifted by simply applying a light upward force against the gravity of the two-wheeler. Also, since the weight of the two-wheeler acts downward on the bar member, the two-wheeler can be lowered by simply applying a light downward force against the pressing force of the damper member. Therefore, the two-wheeler can be easily mounted on the rear of the vehicle.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0009] In the two-wheeler mounting device according to one aspect of the present invention, a two-wheeler is mounted on the rear surface of the vehicle where a spare tire is mounted. The base member of the two-wheeler mounting device is fixed to the mounting portion for the spare tire. A bar member is supported by the base member so as to be swingable in the vertical direction, and an upward pressing force is applied to the bar member by a damper member. A holding portion for the two-wheeler is provided on the bar member. With the two-wheeler held by the holding portion of the bar member, an upward pressing force is applied to the bar member by the damper member to assist the lifting and lowering of the two-wheeler. Since the pressing force of the damper member acts upward on the bar member, the two-wheeler can be lifted by applying a light upward force against the gravity of the two-wheeler. Also, since the weight of the two-wheeler acts downward on the bar member, the two-wheeler can be lowered by applying a light downward force against the pressing force of the damper member. Therefore, the two-wheeler can be easily mounted on the rear surface of the vehicle.

Example

[0010] Hereinafter, the two-wheeler mounting device of the present embodiment will be described with reference to the accompanying drawings. FIG. 1 is a view of the back door of the vehicle of the present embodiment as seen from the rear. FIG. 2 is a perspective view of the two-wheeler mounting device of the present embodiment. FIG. 3 is a front view of the two-wheeler mounting device of the present embodiment. In FIGS. 2 and 3, the spare tire is shown by a two-dot chain line. Also, in the following figures, arrow FR indicates the front of the vehicle, arrow RE indicates the rear of the vehicle, arrow L indicates the left side of the vehicle, and arrow R indicates the right side of the vehicle.

[0011] As shown in FIG. 1, on the rear surface of the back door 10 at the rear of the vehicle, a two-wheeler mounting device 30 capable of mounting a two-wheeler 20 behind a spare tire 15 is provided. The bar member 34 of the two-wheeler mounting device 30 extends behind the spare tire 15, and the two-wheeler 20 is mounted on the bar member 34 behind the spare tire 15. The bar member 34 is swingable in the vertical direction, and the two-wheeler 20 is lifted by the upward movement of the bar member 34 and lowered by the downward movement of the bar member 34. The two-wheeler mounting device 30 is provided with a lift assist mechanism, and the two-wheeler 20 is lifted and lowered with a light force by the lift assist mechanism.

[0012] As shown in FIGS. 2 and 3, the back door 10 is a horizontally-opening door. A door handle 11 is provided on the left side of the back door 10, and a hinge notch 12 is formed on the right edge of the back door 10. An opening 13 for a rear window is formed in the upper half of the back door 10, and a two-wheeler mounting device 30 is attached to the center of the lower half of the back door 10. The two-wheeler mounting device 30 is configured by assembling a bar member 34, a damper member 36, and a damper stay 39 to a plate-shaped base member 31. As the damper member 36 expands and contracts with the swing of the bar member 34, a lift assist mechanism utilizing the reaction force of the damper member 36 is formed.

[0013] The base member 31 has a rectangular frame 32 with four sides curved inward and an arm frame 33 extending rightward from the right frame of the rectangular frame 32. Four mounting bosses (mounting portions) 14 for a spare tire 15 are provided on the back side (front side) of the four corners of the rectangular frame 32 of the base member 31. The four mounting bosses 14 protrude rearward from the rear surface of the vehicle of the back door 10, and the base member 31 is fixed to the mounting bosses 14 by bolt-tightening a mounting member (not shown) of the spare tire 15 and the rectangular frame 32 to the four mounting bosses 14. In a rear view, the arm frame 33 of the base member 31 protrudes rightward from the spare tire 15, and the bar member 34 is supported at the tip of the arm frame 33 so as to be swingable in the vertical direction.

[0014] The tip of the arm frame 33 of the base member 31 serves as a swing fulcrum of the bar member 34. Since the swing fulcrum of the bar member 34 is located on the right side of the spare tire 15, the support of the bar member 34 by the spare tire 15 is not hindered. Also, since the swing fulcrum of the bar member 34 is located on the opposite side of the back door 10 sandwiching the door handle 11 and the spare tire 15, even when the two-wheeler mounting device 30 is installed on the back door 10, the opening and closing of the back door 10 is not hindered by the bar member 34. Without worrying about the door handle 11, the swing fulcrum of the bar member 34 can be provided at an optimal position behind the back door 10.

[0015] The bar member 34 extends rearward from the tip (swing fulcrum) of the arm frame 33 and then extends toward the center in the vehicle width direction behind the spare tire 15. A holding bar (holding portion) 35 protrudes rearward from the tip side of the bar member 34, and a fixing fitting 21 (see FIG. 1) of the motorcycle 20 described later is fixed to the holding bar 35. A damper member 36 and a damper stay 39 are installed on the back side of the arm frame 33, and one end of the damper stay 39 is fixed to the base end portion of the bar member 34 with the arm frame 33 interposed therebetween. The damper stay 39 extends in parallel with the bar member 34 and overlaps in the front-rear direction, and the damper stay 39 on the back side of the arm frame 33 is swung integrally with the bar member 34.

[0016] The cylinder 37 of the damper member 36 is connected to the other end portion of the damper stay 39, and the piston rod 38 of the damper member 36 is connected to the lower left mounting boss 14. The gas and oil in the cylinder 37 are compressed by the piston rod 38, and an upward pressing force is applied to the bar member 34 via the damper stay 39 by the reaction force of the gas or the like. A moment of the gravity of the motorcycle 20 acts on the bar member 34 in the counterclockwise direction about the swing fulcrum, but a moment of the pressing force of the damper member 36 acts in the clockwise direction, and the lifting of the motorcycle 20 is assisted by the pressing force of the damper member 36.

[0017] Further, the base member 31, the damper member 36, and the damper stay 39 are located between the back door 10 and the spare tire 15, and the motorcycle mounting device 30 is installed compactly together with the spare tire 15 on the vehicle rear surface side of the back door 10. By using the mounting boss 14 for the spare tire 15, the motorcycle mounting device 30 can be attached with a simple structure. Since most of the base member 31 is covered by the spare tire 15 from the rear, the appearance of the vehicle is not impaired. Further, the entire damper member 36 is covered by the spare tire 15 from the rear side, and the damper member 36 is entirely protected by the spare tire 15.

[0018] More specifically, the damper member 36 swings following the bar member 34, and the swing range of the damper member 36 is within the inner side of the four mounting bosses 14. The damper member 36 enters between the upper right mounting boss 14 and the lower right mounting boss 14. The upper right mounting boss 14 restricts the upper limit position of the swing range of the damper member 36, and the lower right mounting boss 14 restricts the lower limit position of the swing range of the damper member 36. The swing range of the damper member 36 is suppressed within the area covered by the spare tire 15, and the damper member 36 is appropriately protected by the spare tire 15 even when the damper member 36 swings.

[0019] Referring to FIG. 4, the lifting and lowering operation of the two-wheeler by the two-wheeler mounting device will be described. FIG. 4 is an explanatory diagram of the lifting and lowering operation of the two-wheeler by the two-wheeler mounting device of this embodiment. For the convenience of explanation, in FIG. 4, the spare tire is omitted, and only the tip side of the bar member is shown while the base end side is omitted. FIG. 4(A) shows the state where the bar member is lowered, and FIG. 4(B) shows the state where the bar member is lifted.

[0020] As shown in FIG. 4(A), when mounting the two-wheeler 20 on the vehicle, the bar member 34 is lowered downward while contracting the damper member 36, and the holding bar 35 of the bar member 34 is positioned below the saddle 22 (see FIG. 1) of the two-wheeler 20. A fixing fitting 21 (see FIG. 1) is attached to the seat tube 23 (see FIG. 1) below the saddle 22, and the holding bar 35 of the bar member 34 is inserted into the insertion hole of the fixing fitting 21. A retaining part (not shown) is attached to the tip of the holding bar 35, and the fixing fitting 21 is prevented from coming off by the retaining part. Although the description is omitted, in addition to the holding bar 35, the two-wheeler mounting device 30 may be provided with anti-rotation and other fixing locations.

[0021] At this time, the pressing force is increased by the contraction of the damper member 36. However, the damper member 36 and the damper stay 39 are aligned in a straight line, and the pressing force of the damper member 36 does not act upward on the bar member 34. The pressing force of the damper member 36 acts in the extending direction of the damper stay 39, that is, in the extending direction of the bar member 34. Therefore, the bar member 34 is not lifted by the pressing force of the damper member 36, and the fixing bracket 21 of the two-wheeled vehicle 20 can be attached to the holding bar 35 while keeping the bar member 34 lowered downward. Note that the two-wheeled vehicle mounting device 30 may be provided with a locking mechanism for locking the bar member 34 at a lower position.

[0022] Then, as shown in FIG. 4(B), when the two-wheeled vehicle 20 is gently pushed upward manually, the damper member 36 and the damper stay 39 are bent, and the pressing force of the damper member 36 acts upward on the bar member 34. A strong upward moment is generated on the bar member 34 by the pressing force of the damper member 36 around the swing fulcrum of the bar member 34, and the bar member 34 swings upward while the damper member 36 extends. Therefore, the two-wheeled vehicle 20 can be lifted by applying only a slight upward force against the gravity of the two-wheeled vehicle 20. Note that the two-wheeled vehicle mounting device 30 may be provided with a locking mechanism for locking the bar member 34 at an upper position.

[0023] When the two-wheeled vehicle 20 is lowered from the vehicle, the two-wheeled vehicle 20 is lowered downward while the damper member 36 is contracted. At this time, the pressing force of the damper member 36 acts upward on the bar member 34, and the gravity of the two-wheeled vehicle 20 acts downward on the bar member 34. An upward moment is generated on the bar member 34 by the pressing force of the damper member 36 around the swing fulcrum of the bar member 34. A downward moment is generated on the bar member 34 by the gravity of the two-wheeled vehicle 20, but the downward moment is slightly smaller than the upward moment. Therefore, the two-wheeled vehicle 20 can be lowered by applying a slight downward force against the pressing force of the damper member 36.

[0024] As described above, according to the two-wheeler mounting device 30 of the present embodiment, in a state where the two-wheeler 20 is held by the holding bar 35 of the bar member 34, an upward pressing force is applied to the bar member 34 by the damper member 36. Since the pressing force of the damper member 36 acts upward on the bar member 34, the two-wheeler 20 can be lifted by simply applying a slight upward force against the gravity of the two-wheeler 20. Further, since the weight of the two-wheeler 20 acts downward on the bar member 34, the two-wheeler 20 can be lowered by simply applying a slight downward force against the pressing force of the damper member 36. Therefore, the two-wheeler 20 can be easily mounted on the rear surface of the vehicle.

[0025] In the present embodiment, a two-wheeler is mounted together with a spare tire on the rear surface of the vehicle of the back door. However, even if the spare tire is removed, the two-wheeler can be mounted.

[0026] In the present embodiment, an example in which the back door is a side-opening door has been described. However, the back door may be a vertically-opening door.

[0027] In the present embodiment, four mounting bosses are exemplified as the mounting portion. However, the mounting portion only needs to be formed such that the base member of the two-wheeler mounting device can be fixed together with the spare tire.

[0028] In the present embodiment, an electric assist bicycle is mounted as the two-wheeler. However, other two-wheelers such as a bicycle or an electric moped may be mounted.

[0029] As described above, the first aspect is a two-wheeler mounting device (30) capable of mounting a two-wheeler (20) on the rear surface of a vehicle on which a spare tire (15) is mounted. The two-wheeler mounting device (30) includes a base member (31) fixed to a mounting portion (mounting boss 14) for the spare tire, a bar member (34) swingably supported in the vertical direction on the base member, and a damper member (36) that applies an upward pressing force to the bar member. A holding portion (holding bar 35) for the two-wheeler is provided on the bar member, and the damper member assists in raising and lowering the two-wheeler. According to this configuration, with the two-wheeler held by the holding portion of the bar member, an upward pressing force is applied to the bar member by the damper member. Since the pressing force of the damper member acts upward on the bar member, the two-wheeler can be lifted by applying a slight upward force against the gravity of the two-wheeler. Also, since the weight of the two-wheeler acts downward on the bar member, the two-wheeler can be lowered by applying a slight downward force against the pressing force of the damper member. Therefore, the two-wheeler can be easily mounted on the rear surface of the vehicle.

[0030] The second aspect is, in the first aspect, that the base member is located between the rear surface of the vehicle and the spare tire. According to this configuration, the two-wheeler mounting device can be compactly installed on the rear surface of the vehicle. Since the base member is covered by the spare tire from the rear, the appearance of the vehicle is not impaired.

[0031] The third aspect is, in the first aspect or the second aspect, that in a rear view, the base member protrudes laterally from the spare tire, and the swing fulcrum of the bar member is located laterally of the spare tire. According to this configuration, the two-wheeler mounting device can be compactly installed on the rear surface of the vehicle. The support of the bar member is not hindered by the spare tire.

[0032] In the fourth aspect, in the third aspect, the rear surface of the vehicle is formed by a back door (10), and the swing fulcrum of the bar member is located on the opposite side of the door handle (11) of the back door across the spare tire. According to this configuration, even if a two-wheeler mounting device is installed on the rear surface of the vehicle, the opening and closing of the back door will not be hindered by the bar member. The swing fulcrum of the bar member can be provided at an optimal position behind the back door without worrying about the door handle.

[0033] In the fifth aspect, in any one of the first to fourth aspects, the damper member is located between the rear surface of the vehicle and the spare tire. According to this configuration, a two-wheeler mounting device can be compactly installed on the rear surface of the vehicle. The damper member can be protected by the spare tire.

[0034] In the sixth aspect, in the fifth aspect, the entire damper member is covered by the spare tire from the rear side. According to this configuration, the damper member can be protected by the spare tire.

[0035] In the seventh aspect, in any one of the first to sixth aspects, the mounting portion for the spare tire is a plurality of mounting bosses (14) protruding from the rear surface of the vehicle, the damper member swings following the bar member, and the swing range of the damper member is within the inside of the plurality of mounting bosses. According to this configuration, the swing range of the damper member is suppressed within the area covered by the spare tire, and the damper member can be appropriately protected by the spare tire even if the damper member swings.

[0036] Although this embodiment has been described, as another embodiment, a combination of the above embodiment and modification examples in whole or in part may also be used.

[0037] Moreover, the technology of the present invention is not limited to the above-described embodiments, and various changes, substitutions, and modifications may be made without departing from the spirit of the technical idea. Furthermore, if the technical idea can be realized in another way by technological progress or another derived technology, that method may be used for implementation. Therefore, the scope of the claims covers all embodiments that can be included within the scope of the technical idea.

Explanation of Reference Numerals

[0038] 10: Back door 11: Door handle 14: Mounting boss (mounting portion) 15: Spare tire 20: Bicycle 30: Bicycle-mounted device 31: Base member 34: Bar member 35: Holding bar (holding portion) 36: Damper member

Claims

1. A two - wheel vehicle mounting device capable of mounting a two - wheel vehicle on the rear surface of a vehicle on which a spare tire is mounted, comprising a base member fixed to a mounting portion for the spare tire, a bar member swingably supported in the vertical direction on the base member, and a damper member for applying an upward pressing force to the bar member, wherein a holding portion for the two - wheel vehicle is provided on the bar member, and the damper member assists in raising and lowering the two - wheel vehicle. A two - wheel vehicle mounting device characterized by this.

2. The two - wheel vehicle mounting device according to claim 1, characterized in that the base member is located between the rear surface of the vehicle and the spare tire.

3. In a rear view, the base member protrudes laterally from the spare tire, The two - wheel vehicle mounting device according to claim 1 or claim 2, characterized in that a swing fulcrum of the bar member is located laterally of the spare tire.

4. The rear surface of the vehicle is formed by a back door, The two - wheel vehicle mounting device according to claim 3, characterized in that a swing fulcrum of the bar member is located on the opposite side sandwiching the door handle of the back door and the spare tire.

5. The two - wheel vehicle mounting device according to claim 1 or claim 2, characterized in that the damper member is located between the rear surface of the vehicle and the spare tire.

6. The two - wheel vehicle mounting device according to claim 5, characterized in that the entire damper member is covered from the rear side by the spare tire.

7. The mounting portion for the spare tire is a plurality of mounting bosses protruding from the rear surface of the vehicle, The damper member swings following the bar member, and the swing range of the damper member is within the inner sides of the plurality of mounting bosses, for the two-wheeled vehicle mounting device according to claim 1 or claim 2.

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