JPH0115565Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a luggage carrier mainly used for transporting golf clubs at golf courses.

A. Prior Art As this type of luggage carrier, one with the structure shown in FIG. 1 has been developed. (Utility Model Publication No. 49-36175) This luggage carrier has a swing arm 2 rotatably attached to the axle of two upper wheels 1 that run on a track.
A lower wheel 3 is attached to the lower end of the swing arm 2, and is pressed by a spring 4 so that the lower ends of the swing arm 2 approach each other. According to this structure, the two lower wheels 3 are not pressed against the track by independent springs, and the movement of one lower wheel affects the other wheel, and if the conditions of the track and wheels are bad, they will fall off the track. There was a drawback that it was easy to get stuck. Furthermore, the luggage carrier of this structure has serious defects that cannot be solved in principle. This defect occurs when the rotational resistance of the lower wheel 3 becomes large and the lower wheel 3 no longer rotates smoothly, causing a force that causes the rear swing arm 2 to rise vertically during movement due to the resistance of the wheel. , the force with which one of the lower wheels 3 presses against the lower surface of the track becomes weaker. For example, in FIG. 1, if the luggage carrier moves to the left, a force is exerted to vertically raise the right swing arm 2, and the force with which the right lower wheel 3 presses against the track surface is weakened.

It goes without saying that a vehicle in which two lower wheels always reliably press against the lower surface of the track can reduce derailment than a vehicle in which one lower wheel presses against the lower surface of the track.

In particular, the track creates irregular irregularities and steps at connection points, etc., but in order to pass through such places without derailing, the two lower wheels separately press the bottom surface of the track with a stable force. It is extremely important to do so.

B. Structure and purpose of this invention In order to eliminate these drawbacks of conventional luggage carriers, this invention has a plurality of wheels arranged below the upper wheels, and each lower wheel is separately and independently installed. The lower wheels are attached to the frame via separate mounting members so that they can be pressed against the lower surface of the track with a predetermined pressing force. The lower wheels are supported on a long swing arm which is pivoted away from the axis of the upper wheels so that the lower wheels can press against each other. Each wheel is independently and reliably pressed against the lower surface of the track without being affected by the movement, and even if the rotational resistance of the lower wheels increases, it is almost unaffected by the pressing force of the track, and regardless of the direction of movement, each To provide a cargo transport vehicle in which the lower wheels are pressed against the lower surface of the track with a predetermined pressing force and the slippage of the upper wheels and lower wheels of the track can be minimized.

C. Example Hereinafter, an example of this invention will be described based on the drawings.

The luggage carrier shown in FIGS. 2 and 3 runs, for example, along a track with a rectangular cross section that is stretched along a golf course. This luggage carrier includes two upper wheels 6 that run on a track 5, a lower wheel 7 that is pressed against the lower surface of the track 5, and a side wheel 8 that rolls along the side of the track. .

The upper wheels 6 are connected to a power source such as a motor or engine mounted on the frame through a speed reducer and a chain, and are driven to move the luggage carrier along the track 5.

There are two lower wheels 7, and the two lower wheels 7 are located directly below the upper wheel 6 via separate attachment members.

The mounting member has a swing arm 10 which is pivoted at its upper end and is spaced outwardly from the axis of the upper wheel so that it can rotate freely in a vertical plane, and the lower wheel 7 is mounted via a bearing in the middle. , this swing arm 10
and a pulling member that pulls up the other end.

By the way, in this specification, the outside of the axle of the upper wheel means the outside between the axles of the upper wheel, that is, the right side of the right wheel and the left side of the left wheel in FIG. shall be taken as a thing.

As shown by the chain line in FIG. 2, the swing arm 10 is long and pivoted on the outside of the shaft 15 of the upper wheel 6 so that the locus of vertical movement of the lower wheel 7 is as perpendicular as possible. The upper end pivot position is determined to be below the axis 15 of the upper wheel 6.

The lifting member that pulls up the lower wheel includes a coil-shaped spring 11 that is a compression spring, and this spring 1.
1 and a guide rod 12 inserted through the guide rod 1.

The guide rod 12 has a lower end connected to a rotating end of the swing arm 10 so as to be rotatable in a vertical plane.
A collar 9 is fixed to the upper end portion through the frame, and a male thread is carved in the lower portion. A spring 11 is passed through the frame penetrating portion, a collar 9 is fixed above the spring 11, and a guide rod 12 pulls up the end of the swing arm 10 via the spring 11.

The force with which the lower wheel 7 presses against the lower surface of the track 5, that is, the force with which the guide rod 12 pulls up one end of the swing arm 10, can be adjusted by the screwing amount of the nut at the bottom of the guide rod 12. When the nut 13 is screwed further upward, the lower wheel 7 is pressed more strongly against the lower surface of the track.

The luggage carrier shown in FIG. 2 includes two upper wheels 6 and a lower wheel 7. The number of upper wheels 6 and lower wheels 7 does not necessarily have to be two. For example, although not shown, the number of upper wheels may be three or more, or
It is also possible to have three or more lower wheels. However, at least two lower wheels are disposed below the upper wheels, and the upper wheels and lower wheels are clamped at at least two locations on the track.

The lower wheel 7 is paired with the upper wheel 6 and is connected to one of the tracks 5.
Preferably, as shown in FIG. 2, it is disposed directly below the upper wheel 6, but it is also possible to dispose it slightly offset.

As shown in FIG. 3, the upper wheel 6 and the lower wheel 7 have protrusions 14 formed on both sides of their circumferences.
A track 5 is located in between.

D. Effect The cargo carrier of this invention has a lower wheel below a plurality of upper wheels, and the upper and lower wheels clamp several places on the track, and the lower wheel presses against the lower surface of the track.
Each is attached to the frame via separate attachment members, and is reliably pressed against the lower surface of the track without being affected by the movement of other lower wheels.

Furthermore, a noteworthy feature of this invention is that even if the rotational resistance of the lower wheels increases, the lower wheels are not affected by the force that presses against the lower surface of the track, and all lower wheels move in any direction. By pressing the lower surface of the track with a strong force, the track is securely clamped between the lower wheels and the upper wheels, thereby realizing the effect of minimizing the chance of wheels coming off the track under adverse conditions.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional luggage carrier, and FIGS. 2 and 3 are a side view and a front view of a luggage carrier showing an embodiment of this invention. 1... Wheel, 2... Swing arm, 3... Lower wheel, 4... Spring, 5... Track, 6... Upper wheel, 7... Lower wheel, 8... Side wheel, 9... Tsuba,
10...Swing arm, 11...Spring,
12... Guide rod, 13... Natsu, 14...
...Convex ridge, 15...axis.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A luggage carrier that runs on an elevated track, which has multiple upper wheels running on the track and is pressed against the lower surface of the track. and a plurality of lower wheels, each of which is disposed below the upper wheel via a separate attachment member, and the attachment member of the lower wheel itself is mounted on a vertical surface. The upper end is so that it can rotate freely within the
A swing arm is pivotally mounted at a position away from the axis of the upper wheel, and the lower wheel is attached via a bearing in the middle, and one end is connected to the rotating end of this swing arm to control the end of the swing arm. 1. A load carrier, comprising a lifting member, and wherein a plurality of lower wheels are pushed onto the lower surface of the track via separate mounting members that move independently. (2) The luggage carrier according to claim 1, wherein either one of the upper wheels is connected to a power source, and the upper wheel is driven to travel along a track. (3) The luggage carrier according to claim (1) of the utility model registration claim, which has two upper wheels and two lower wheels, and the lower wheels are arranged directly below the upper wheels. (4) The luggage carrier described in paragraph (1) of the utility model registration claim, in which the upper wheels and the lower wheels have convex stripes on both sides of the circumferential surface.