JP3055608U - Manual steering hand guide roller - Google Patents

Abstract

(57) [Summary] [Problem] To reduce the arm strength required for steering, and to steer a handlebar in the cut direction. The steering mechanism is also simply configured. A front support frame for supporting a front roller is provided.
And the rear support frame 3 that supports the rear roller, are pivotably joined to each other, and the handlebar 9 is directly or indirectly connected to the rear support frame 3 so that the rear roller is moved horizontally by the handlebar 9. (Rear support frame 3)
Of the steering direction of the vehicle.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a manually-steered hand guide roller that performs rolling compaction on a road surface and a pavement surface, and that is manually operated to push and pull a steering wheel in a horizontal direction to perform steering.

[0002]

[Prior art]

 Among the rollers for compacting the roadbed and the pavement surface, relatively small ones are hand-operated hand guide rollers. Because of its small size, the structure is required to be simple. Therefore, the steering is manually performed by pushing and pulling the steering wheel in a horizontal direction by human power.

As one example, the front and rear rollers are supported by one main body frame, and a handle bar is fixed to the rear of the main body frame. To change the traveling direction, as shown in FIG. There is a type in which the front and rear rollers 4, 5 are integrally steered together with the frame by manually pushing and pulling in the horizontal direction. Since this structure does not have a steering mechanism, the structure is extremely simple, the manufacturing cost is low, and the structure is perfect for a manual steering type hand guide roller.

[0004]

[Problems to be solved by the invention]

 However, when steering, it is necessary to move the entire guide roller, and pushing and pulling the handle requires a certain amount of strength. Also, as shown in FIG. 5, it is necessary to push the handle to the left when trying to turn the guide roller to the right, and to the right when trying to turn the guide roller to the left (the latter is not shown). However, since the steering operation is required in the opposite direction of the actual direction, the operation requires familiarity.

The present invention has been made in view of the above-mentioned problems of the prior art, and does not require much arm strength required for steering, and is extremely capable of steering in a direction that has turned the handlebar. An object of the present invention is to provide a manual steering type hand guide roller having a simple steering mechanism.

[0006]

[Means for Solving the Problems]

 For this reason, in the present invention, in a manual steering type hand guide roller which is steered by pushing and pulling a handlebar in a horizontal direction by human power, a front support frame for supporting a front roller and a rear support frame for supporting a rear roller are provided. And the handlebar is connected to the rear support frame directly or indirectly, and the horizontal operation of the handlebar is linked to the steering operation of the rear roller.

The front support frame and the rear support frame can be joined to each other by any means such as a mechanism via a bearing and a swivel shaft, a mechanism via a swivel bearing, and the like, as long as they have a structure capable of revolving with each other. . In addition, the two frames may be directly joined or indirectly joined via another member (for example, joining via the base plate 30 as shown in the embodiment).

The handlebar may be either directly connected to the rear support frame or indirectly connected to the rear support frame, but it is necessary that the operation of the handlebar is directly transmitted to the steering operation of the rear support frame. . Here, indirect connection refers to a form in which connection is made via a rod that is an interlocking mechanism, as shown in a form example described later.

In the present invention, when the handlebar is pushed and pulled in the horizontal direction, the operation of the handlebar is directly transmitted to the steering operation of the rear support frame. Directional motion is linked. That is, if the handlebar is pushed right, the rear roller tilts upward and to the right, and if the vehicle advances forward in this state, the vehicle body will be steered to the right.If the handlebar is pushed left to advance, the vehicle body will move to the left. Steered to. In other words, the direction in which the handlebar is moved and the direction in which the vehicle is steered match, so that the operator can easily steer without having to get used to it. In addition, since the steering mechanism basically only needs to make the front support frame and the rear support frame pivot freely relative to each other, a simple structure is required and the manufacturing cost can be reduced.

The push-pull operation of the handlebar is linked to the rear support frame that supports the rear roller. The smaller the support frame, the smaller the strength of the steering arm. For this reason, as shown in an embodiment to be described later, if the rear support frame is formed small (for example, the rear support frame is constituted only by the upper side of the rear roller so as to be covered by the front support frame from above). Steering), and steering is possible without much strength.

[0011]

[Embodiment of the invention]

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view, FIG. 2 is a front view excluding a drive unit such as an engine located at an upper part in FIG. 1 (partially cut away to show the inside), and FIG. 3 is a plan view. FIG. 4 is a plan view showing a steering state.

In the figure, 1 is a vehicle frame, 2 is a front support frame, 3 is a rear support frame, 4 is a front roller, 5 is a rear roller, 6 is a slewing bearing, 7 is an exciter, 8 is a rod, 9 Is a handle bar, 10 is a handle shaft, and 18 is a drive unit.

As shown in the figure, the vehicle body frame 1 is formed by a front support frame 2 and a rear support frame 3, and a drive unit 18 formed of an engine or the like is formed above the vehicle body frame 1 via a base plate 16. Is done. In the vehicle body frame 1, the rear support frame 3 is formed of only a part of the upper side of the rear roller 5, while the front support frame 2 is formed so as to cover the rear support frame 3 from above. Further, the front support frame 2 and the rear support frame 3 have a structure in which the front support frame 2 and the rear support frame 3 are capable of turning relative to each other via a turning bearing 6 at the center of the vehicle body. More specifically, the outer ring 60 of the slewing bearing 6 is screwed to the front support frame 2 and the inner ring 61 is screwed to the base plate 30 extending from the rear support frame 3 with bolts.

A handlebar 9 is rotatably supported at the rear of the front support frame 2. A rod 8 is mounted on the bracket 11 of the handle shaft 10, and an end of the rod 8 is mounted on the base plate 30. The base plate 30 is a member that extends from the rear support frame 3 and is screwed to the inner ring 61 of the slewing bearing 6. When the handlebar 9 is operated by connecting the rod 8 to the base plate 30, As a result, the rear support frame 3 is pivoted (relative to the front support frame 2).

In this embodiment, the vibrating body 7 is provided below the slewing bearing 6, and the vibration from the vibrating body 7 is transmitted to the front roller 4 via the front support frame 2 and to the rear roller 4. 5 is transmitted through the slewing bearing 6, the base plate 30, and the rear support frame 3, respectively.

An example of the steering operation according to the embodiment will be described with reference to FIG. When the vehicle body 1 is steered rightward, the handlebar 9 is pushed rightward as shown in FIG. The movement of the handlebar 9 causes the rear support frame 3 to tilt upward to the right via the rod 8 and the base plate 30, and similarly tilts the rear roller 5 upward to the right. As a result, if you move the vehicle forward, it turns right. When the vehicle body 1 is steered to the left, the handlebar 9 may be pushed to the left as shown in FIG.

As described above, in the present embodiment, the direction in which the handlebar 9 is pressed and the steering direction of the vehicle body 1 are the same, so that the operator can easily operate without needing to get used to it. In addition, since the rear roller 5 only needs to be moved without moving the entire vehicle, the labor is small. In particular, in the case of the present embodiment, most of the body frame 1 is constituted by the front support frame 2, and the rear support frame 3 for supporting the rear roller 5 is constituted only by a part of the rear of the vehicle body. The load required to move the vehicle has been significantly reduced, and consideration has been given to enable people with little strength to steer. Basically, the steering mechanism only needs to allow the front support frame 2 and the rear support frame 3 to freely rotate relative to each other, so that a simple structure is required and the manufacturing cost can be reduced.

[0018]

[Effect of the invention]

 As described above, according to the manual steering type hand guide roller according to the present invention, the direction in which the handlebar is pushed and the steering direction match, so that the work can be performed without any need for getting used to. Also, since only the rear roller needs to be moved, the effort required to push and pull the handlebar is small. The steering mechanism is also very simple and can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a front view illustrating the structure of an embodiment of the present invention.

FIG. 2 is a front view (partially cut away to show the inside) without a driving unit such as an engine located at an upper part in FIG. 1;

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a plan view illustrating a steering state of the embodiment;
(a) shows the state when steering to the right, and (b) shows the state when steering to the left.

FIG. 5 is an explanatory diagram showing a steering state (left direction) of a conventional manual steering type hand guide roller.

[Explanation of symbols]

 1 Body frame 2 Front support frame 3 Rear support frame 4 Front roller 5 Rear roller 6 Slewing bearing 7 Exciter 8 Rod 9 Handlebar 10 Handle shaft 16 Base plate 18 Drive

Claims (2)

[Utility model registration claims] 1. A manually-operated hand guide roller that is steered by pushing and pulling a handle bar in a horizontal direction by human power, a front support frame that supports a front roller,
A rear support frame that supports the rear roller is pivotally joined to each other, and the handlebar is directly or indirectly connected to the rear support frame. A manually steered hand guide roller that is interlocked. 2. The manually guided hand-guided roller according to claim 1, wherein the rear support frame is constituted only by an upper side of a rear roller so as to be covered by the front support frame from above.