DE202012102516U1 - Motorized three-wheeled golf trolley - Google Patents

Abstract

Motorized three-wheeled golf trolley (1) with a chassis (2) having a base frame (21) and a steering linkage (20), which carries a steerable front wheel (4) and two motor-driven rear wheels (5), characterized in that the base frame ( 21) is provided with an adjusting device (220) and is designed to be extendable to the rear by means of this and carries a standing platform (230) and / or a seat (6) for transporting a user in its rear area pointing in the straight-ahead direction behind the center.

Description

The invention relates to a motorized three-wheeled golf trolley with a bottom frame and a steering linkage having a chassis carrying a steerable front wheel and two motor-driven rear wheels.

A motorized golf trolley (golf cart, caddy cart) of this type is in the DE 103 53 521 A1 disclosed. In this known golf trolley, a leading support wheel are arranged on the front of a floor frame and two rear wheels driven on the rear of an axle. Furthermore, a collapsible support column is articulated in the surrounding area of the rear wheel axle, which forms a trailer for an obliquely forward folded golf bag and in the non-use state is folded down to the front on the floor frame. To move the golf trolley, the user only needs to operate the actuating means for engine operation and to lick the trolley via a handlebar mounted on the handlebar, but he goes behind the golf trolley and often has to travel long distances. This can be difficult for some people.

Another three-wheeled golf trolley with motor drive, which is steered by a behind-going user, is in the DE 20 2005 017 020 U1 shown.

In the DE 38 77 526 T2 (German part of the European patent EP 0 317 309 B1 ) is a collapsible three-wheeled golf trolley extruded chassis parts shown.

The DE 60 2005 005 707 T2 shows a drive unit for driving two wheels of a golf cart with an electric motor.

In addition, golf carts are also known, which are designed for the transport of people, such. For example, a trolley called Scoover (Internet address www.scoover.eu). These are four-wheeled and relatively complex. A similar four-wheeled golf trolley with standing platform for a user is in the DE 20 2009 013 273 shown. In the DE 20 2011 004 903 U1 It is proposed to carry out the transport of the user, the length and the inclination of the golf bag carrier axis adjustable. This can lead to difficulties in maneuverability.

The present invention has for its object to provide a golf trolley of the type mentioned above, which offers increased ease of use.

This object is achieved with the features of claim 1. Here, it is provided that the floor frame is provided with an adjusting device and by means of this rearwardly extendable and carries in its pointing in the straight direction longitudinal extension behind the middle rear area a standing platform and / or a seat for transporting a user.

This design of the golf trolley results in a structurally advantageous space-saving design with the lowest possible weight and good handling including production of the transport function.

Advantageous design variants are that the adjustment is designed for adjusting by hand or is provided with an adjustment for automatic adjustment after triggering an adjustment by the user. The automatic adjustment by means of the adjustment can be done simply by pressing a button and automatic control of the adjustment.

In this case, an advantageous embodiment is that the adjusting drive for the extraction process has a lifting unit lying in the straight-ahead travel direction, in particular in the vertical center longitudinal plane.

Advantageous design variants of the adjusting device are formed in that the lifting unit has an adjusting spindle, a toothed rack, a piston or cylinder arrangement which can be operated pneumatically or hydraulically in reciprocating direction or a linear motor.

Other advantageous for use design features are that a gage is available, by means of which the track width of the two rear wheels when extending the bottom frame widened and reduced when pushing the bottom frame or that the gauge on the one hand and the bottom frame on the other hand are independently adjustable.

In this case, an advantageous embodiment for the construction is that the gage adjustment comprises an adjustment, which is arranged on a rear axle supporting the rear wheels.

Further advantages for the structure and function result from the fact that the bottom frame is configured in the shape of an isosceles triangle or trapezium tapering towards the front, and that the side frame members forming the side legs of the triangle or trapezium are designed as telescopically displaceable side parts.

In this case, an advantageous embodiment is that the lateral frame members are connected at its rear end region with the rear axle.

If it is provided that the angle between the lateral frame legs is fixed rigidly, a widening is automatically effected when the bottom frame is pulled out to the rear. In this embodiment, for. B. account for a separate drive for the gage adjustment on the rear axle.

Another advantageous construction consists in that the floor frame is T-shaped from a divisible longitudinal traverse, in particular in the vertical central longitudinal plane, and an attached thereto, connecting the rear wheels axle unit is formed.

For the operation, it is advantageously provided that the axle unit has telescopically adjustable axle segments and a telescopically adjustable drive axle.

For the accommodation or transport of the golf trolley when not in use is advantageous that the steering linkage has an obliquely backward upward steering column in the operating condition with attached steering rod, wherein the steering column is folded towards the bottom frame.

The invention will be explained in more detail by means of embodiments with reference to the drawings. Show it:

1A a motorized golf trolley in a schematic side view with the floor frame pushed together and the user behind,

1B the golf trolley after 1A with extended floor frame and on a standing platform with transported user,

1C the golf trolley after 1A with the bottom frame removed and on a seat with the user transported,

2A the golf trolley after 1A in the collapsed state in an enlarged lateral view,

2 B the golf trolley after 2A in plan view of the floor assembly with wheels and floor frame,

3A the golf trolley after 2A in the extended state,

3B the golf trolley after 3A in plan view of the floor assembly with extended bottom frame and track extension in the area of the rear wheels,

4A and 4B Side views of another embodiment of a golf trolley in a collapsed and exploded with respect to the longitudinal direction,

5A and 5B Top views of the trolley after the 4A and 4B in the collapsed and exploded state and

6 an enlarged view of the golf trolley after 5B ,

1A shows a golf trolley 1 with a chassis 2 holding a floor group with three on a floor frame 21 coupled wheels, namely a steered front wheel 4 and two rear wheels arranged laterally with respect to a central longitudinal axis pointing in the straight-ahead travel direction 5 of which, as a result of the lateral representation, only the rear wheel facing the observer can be seen. In the front area of the floor frame 21 is a steering linkage 20 with an obliquely rearward upward steering column 201 with a handlebar to be handled by the user 202 coupled in the upper area. The steering column 201 , at the lower portion of a suspension for the front wheel 4 is attached, also serves to accommodate an accessory bag 3 for the golf equipment. The rear extendable floor frame 21 is in the in 1A shown state pushed together, so that the handlebar 202 via a (imaginary) pointing in the direction of gravity vertical in the longitudinal direction over the rear wheels 5 which protrudes to the rear or over or at least slightly before the vertical over the rear wheels 5 so that the user can comfortably carry the golf trolley while walking. To easily move the golf trolley 1 this is by means of a motor 7 driven (see. 6 ), preferably on the rear wheels 5 acts and z. B. in the region of a rear axle between the rear wheels 5 or in the wheels itself is arranged as a hub motor. As 1A further shows, the bottom group is with one on the bottom frame 21 supported standing platform 230 Mistake.

1B shows the extended state of the golf trolley 1 , where the bottom frame is extended to the rear so far that the user is comfortable on the standing platform 230 with its center of gravity slightly in front of the rear axle 50 or at least above it standing on the golf trolley 1 ride along and maneuver this. The steering linkage 20 can in the area of the longitudinal column 201 and / or the handlebar 202 according to height adjustable be educated. The location of the rear wheels 5 in the collapsed state is in 1B dashed lines.

As 1C may instead of or in addition to the standing platform 230 in the region of the rear axle, advantageously with the center of gravity just before the same, a seat 6 for the user z. B. releasably attached and on the floor frame 21 be supported so that the user sitting on the golf trolley 1 can ride.

2A shows the golf trolley 1 in the collapsed state of the floor frame 21 in enlarged side view while 2 B a top view of the bottom group of the golf trolley 1 with the floor frame 21 and the three wheels, namely the steered front wheel 4 and the two right and left with respect to the central longitudinal axis and vertical central longitudinal plane disposed rear wheels 5 shows. The floor frame 21 has substantially the shape of an isosceles, front narrowing trapezoid or alternatively an isosceles triangle tapering forward, the angle of the two side legs with respect to the central longitudinal axis is the same size as out 2 B evident. The two rear wheels 5 are in the illustrated embodiment via a (in plan view) at right angles to the central longitudinal axis extending physical rear axle 50 coupled together. The back ends of the side legs of the floor frame 21 are z. B. articulated and / or mechanically buffered by means of an elastic element on the rear axle 50 appropriate. The standing platform 230 is largely in front of the rear axle 50 and is shown in the Fig. Transparent.

As 2A is the longitudinal column 201 via a joint part 200 for steering the front wheel with the ground frame 21 coupled. Furthermore, the steering linkage 20 with the steering column 201 to the floor frame 21 be designed hinged down, the execution has a suitably trained Abklappmechanik.

Essential design feature of the present golf trolley 1 is the extensibility or adjustability of the bottom group to the rear, as in connection with the 1A and 1B already mentioned. For easy adjustment, the bottom group with an adjustment 220 provided, like the 2A and 2 B and also 3A and 3B continue to show. The adjusting device 220 is arranged in the embodiment shown in the region of the central longitudinal plane and has a lifting unit with an adjustment 221 and an adjusting drive acting on this 222 on. The adjustment part 221 includes z. As an adjusting spindle or rack, during the adjustment 222 advantageous is an electric motor. Alternatively, as adjustment also z. As a pneumatically or hydraulically operated piston / cylinder unit or a linear electric motor be installed. The adjustment part 221 and / or the adjustment drive 222 can be encapsulated by a housing.

In the embodiment shown, the two side legs of the bottom frame 21 also composed with at least two relatively movable side panels, namely a front side panel 210 and a relative to this telescopically displaceable rear side part 211 , like from the 3A and 3B more clearly visible.

Another special design of the golf trolley 1 is that the track width of the rear wheels in the extended state is increased. In the embodiment shown, this is in the region of the rear axle 50 in this or outside of an adjustment 51 with a motor-driven drive unit 52 intended. The track extension contributes to the transport of the user significantly to the tilt stabilization and driving safety.

In the embodiment shown, the angle between the side parts of the floor frame 21 rigidly predetermined by z. B. the two front side panels 210 firmly attached to each other and to a support member of the floor assembly. When removing or adjusting the floor frame 21 to the rear, this automatically increases the track width when the rear wheels 5 or the rear axle 50 coupled with the rear ends of the side legs, and when pushed together, a reduction of the track width. It can on a separate drive unit 52 between the rear wheels 5 be waived. An adjustment unit 51 with appropriately designed mechanics can contribute to a smooth, safe gage adjustment.

The 4A to 6 show a further embodiment of the construction of a golf trolley 1 in lateral view ( 4A and 4B ) and in plan view of the floor group ( 5A . 5B and 6 ), wherein corresponding parts are provided with the same reference numerals as in the previously described embodiment.

As in particular the plan views of the 5A . 5B and 6 show, the bottom frame is formed of a central, lying in the vertical central longitudinal plane of the longitudinal beam and a right-angled thereto Ach unit, at the ends of the rear wheels 5 are arranged symmetrically to the central longitudinal axis. The longitudinal beam is in this case constructed telescopically from a plurality of longitudinal segments, by means of the adjusting device 220 With adjusting part 221 and adjustment drive 222 expandable and zusammenschiebbar are composed. Again, the adjustment 220 Have one or more adjusting spindles, one or more racks or at least one piston / cylinder unit with pneumatic or hydraulic actuation. As in particular the enlarged view in 6 shows, the longitudinal beam is stably mounted on the axle unit, wherein the axle unit in turn comprises a plurality of telescopically adjustable axle segments, whereby the track width adjustment of the rear wheels described above 5 is possible. The adjustment drive 222 can either in the rear of the longitudinal beam or in the front region of the longitudinal beam, for example near the point of connection of the steering linkage 20 be arranged.

The adjustment of the track is done either via the adjustment 222 and a coupling mechanism with deflection gear, the transmission parts 53 includes. Alternatively, the gage adjustment via its own drive unit 52 be made as described in connection with the previous embodiment. The adjustment unit 51 has for the gage adjustment in both cases adjustment means such. B. adjusting spindles on.

How out 6 Furthermore, it can be seen that in the axle unit is a motor 7 arranged, via a telescopically adjustable drive axle on the rear wheels 5 acts. In addition, a differential gear is arranged in the axle unit, so that the golf trolley 1 can easily perform steering maneuvers. Instead of an engine 7 in the axle unit can the rear wheels 5 be provided with hub motors, which can be controlled by means of the control device. The motor 7 is preferably designed as an electric motor and is powered by a battery or a rechargeable battery, including z. B. a charge can be provided via photovoltaic elements.

The platform 230 can z. B. have two parts and have two superimposed sliding plate parts, so that they widened or narrowed accordingly with the gage adjustment.

For easy operation of the adjusting device 220 by means of the adjustment drive 222 and / or the adjustment unit 51 by means of the drive unit 52 is an electrical control unit (not shown) via which the adjustment when pulling or pushing together by the user z. B. can be triggered by pressing a button. The control unit may form part of the aforementioned control device.

It is also conceivable, the adjustment 220 or the adjustment unit 51 to perform as a manually operable adjustment mechanism.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10353521 A1 [0002]
• DE 202005017020 U1 [0003]
• DE 3877526 T2 [0004]
• EP 0317309 B1 [0004]
• DE 602005005707 T2 [0005]
• DE 202009013273 [0006]
• DE 202011004903 U1 [0006]

Claims (12)

Motorized three-wheeled golf trolley ( 1 ) with a floor frame ( 21 ) and a steering linkage ( 20 ) having chassis ( 2 ), which has a steerable front wheel ( 4 ) and two motor-driven rear wheels ( 5 ), characterized in that the floor frame ( 21 ) with an adjusting device ( 220 ) is provided and extendable by means of this rearwardly extendable and in its pointing in the direction of straight-ahead longitudinal extension behind the middle rear area a standing platform ( 230 ) and / or a seat ( 6 ) for transporting a user. Golf trolley according to claim 1, characterized in that the adjusting device ( 220 ) is designed for adjusting by hand or with an adjusting drive ( 222 ) is provided for automatic adjustment after triggering an adjustment by the user. Golf trolley according to claim 2, characterized in that the adjusting device ( 220 ) has a lying in straight-ahead driving direction, in particular in the vertical central longitudinal plane lifting unit. Golf trolley according to claim 3, characterized in that the lifting unit has at least one adjusting spindle, a rack, a pneumatic or hydraulically operable in reciprocating piston / cylinder assembly or a linear motor. Golf trolley according to one of the preceding claims, characterized in that a gage adjustment device is provided, by means of which the track width of the two rear wheels ( 5 ) when removing the floor frame ( 21 ) and when pushing together the floor frame ( 21 ) is reducible or that the gauge on the one hand and the bottom frame ( 21 ) On the other hand are independently adjustable. Golf trolley according to claim 5, characterized in that the gage adjustment an adjusting unit ( 51 ) on a rear axle supporting the rear wheels ( 50 ) is arranged. Golf trolley according to one of the preceding claims, characterized in that the floor frame ( 21 ) is configured in the form of an isosceles triangle or trapezium tapering towards the front and that the lateral frame legs forming the side legs of the triangle or trapezium are telescopically displaceable side parts (FIG. 210 . 211 ) are formed. Golf trolley according to claim 7, characterized in that the lateral frame legs at its rear end region with the rear axle ( 50 ) are connected. Golf trolley according to claim 7 or 8, characterized in that the angle between the lateral frame legs is fixed rigidly. Golf trolley according to one of claims 1 to 6, characterized in that the floor frame ( 21 ) T-shaped of a divisible longitudinal beam, in particular in the vertical central longitudinal plane, and one attached to it, the rear wheels ( 5 ) connecting axle unit is formed. Golf trolley according to claim 10, characterized in that the axle unit has telescopically adjustable axle segments and a telescopically adjustable drive axle. Golf trolley according to one of the preceding claims, characterized in that the steering linkage ( 20 ) a in the operating state obliquely backwards upwards steering column ( 201 ) with attached handlebar ( 202 ), wherein the steering column ( 201 ) to the floor frame ( 21 ) is folded down.

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