JPH083446Y2 - Road cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a road surface cutting machine for cutting a road surface.

[Prior Art] As shown in FIG. 9, front wheels 2 and 2 that are a pair of left and right driving wheels are provided in the front portion of a vehicle body 1, and rear wheels 3 and 3 that are a pair of left and right steering wheels and a drum are provided in the rear portion. A road surface cutting machine is known in which the cutter 4 is provided such that its center of rotation is on the same axis orthogonal to the longitudinal direction of the vehicle body, and the drum cutter 4 cuts the road surface.

[Problems to be solved by the device]

In such a road surface cutting machine, a drum cutter 4 is provided near one side of the vehicle body 1 in order to cut the road surface end portion such as a road shoulder portion.

For this reason, the distance L ₁ between the pair of rear wheels 3 is 3
Becomes narrower than the interval L ₂ between 2,2, when the load in the free-running by utilizing the pair of Ayumi plates 5,5 for transportation vehicles such as trucks, adjust the Ayumi plate 5 to the pair of front wheels 2, 2 Since the rear wheel 3 on one side comes off the one on the one side plate 5, it cannot be loaded by itself.

Then, this invention aims at providing the road surface cutting machine which can solve the above-mentioned subject.

[Means and Actions for Solving the Problems]

Auxiliary wheels that cover the outer peripheral surface of the drum cutter are detachably attached so that the auxiliary wheels can be used as traveling wheels when self-propelled by using a pair of slack plates on a transport vehicle. .

〔Example〕

As shown in FIG. 3, the front vehicle body 10 and the rear vehicle body 11 are plotted on the vertical axis.
12 is swingably connected to form a vehicle body 13, and a front vehicle body 10
A pair of left and right front wheels 14, 14 that are drive wheels are provided on the rear vehicle body 11, and a pair of left and right rear wheels 15, 15 that are steering wheels and a drum cutter 16 are provided on the rear vehicle body 11 on the same axis line whose center of rotation is orthogonal to the longitudinal direction of the vehicle body. So that the rear wheel 15 on one side is
One side, the other rear wheel 15 is in the middle, drum cutter 16
Are provided on the other side.

As shown in FIG. 1, the pair of rear wheels 15 and 15 are attached to a vehicle body frame 17, and a downward U-shaped housing 19 provided with a drive case 18 in the vehicle body frame 17 is vertically moved and vertically rocked. The drum cutter 16 is provided freely in the housing 19.

The drum cutter 16 has a large number of cutters 21 provided on the outer peripheral surface of the drum 20 as shown in FIG. 8. A partition wall 22 is fixed to the inner peripheral surface of the drum 20 as shown in FIG. The connected drive shaft 23 is rotatably supported by the drive case 18, is connected to the output side of the motor 25 via the transmission mechanism 24, and the drum cutter 16 is rotated by driving the motor 25. .

The housing 19 is a lifting body as shown in FIGS.
26 is supported by a horizontal pin 27 so as to be vertically swingable, and a swing cylinder 28 is connected between the housing 19 and the lifting body 26.
The elevating body 26 is movably supported along a vertical guide 29 provided on the vehicle body frame 17, and an elevating cylinder 30 is connected between the elevating body 26 and the vertical guide 29.

The opening of the housing 19 is closed by a cover 31, and the cover 31 is held by engaging a hook 33 of a clamp fitting 32 provided on the housing 19 with a receiving piece 34 of the cover 31.

As shown in FIGS. 1 and 2, an auxiliary wheel 40 is detachably attached to the outer side of the drum cutter 16.

The auxiliary wheel 40 has an inner cylinder 41 and an outer cylinder 42 connected by a disc-shaped connecting plate 43. The inner cylinder 41 has a size that fits on the inner peripheral surface of the drum 20, and a mounting plate 44 is fixed. The outer cylinder 42 is sized so as to be loosely fitted to the outer peripheral side of the cutter 21, and the attachment plate 44 is attached to the partition plate 22 with the fastener 45.

The fixing device 45 includes a screw rod 46 and a nut 47 screwed to the partition plate 22.
The screw rod 46 is preliminarily screwed into the partition plate 22 so as not to interfere with the drive shaft tightening bolt 48 in the partition plate 22, and the mounting plate 44 has a hole through which the bolt 48 faces. 49 are formed.

Then, in order to mount the auxiliary wheel 40, the hook 33 of the clamp metal fitting 32 is detached from the receiving piece 34 of the cover 31, the cover 31 is removed, the inner cylinder 41 is fitted in the drum 20, and the screw rod 46 is bored. 50
Then, the nut 47 is screwed into the screw rod 46 and the mounting plate 44 is tightened and fixed to the partition plate 22.

As a result, since the cutter 21 of the drum cutter 16 can be covered with the outer cylinder 42 of the auxiliary wheel 40, the distance between the auxiliary wheel 40 and the rear wheel 15 on one side becomes substantially the same as the distance between the front wheels 14, and the auxiliary wheels 40 are stacked on the carrier vehicle. Can be self-propelled along a pair of Ayumi board when it is inserted.

[Effect of device]

Since the outer peripheral surface of the drum cutter 16 can be covered by attaching the auxiliary wheel 40 to the drum cutter 16, the auxiliary wheel 40 can be used as a traveling wheel.

Therefore, the transport vehicle can be loaded by self-propelled using the pair of edit plates.

[Brief description of drawings]

1 and 2 are a sectional front view and a side view of an auxiliary wheel attached state showing an embodiment of the present invention, FIG. 3 is an overall plan view, and FIG.
5, 5 and 6 are a side view, a front view and a plan view of the drum cutter mounting portion, and FIG. 7 is a sectional view taken along line AA of FIG.
FIG. 9 is a side view of the drum cutter, and FIG. 9 is a plan view of a conventional example. 13 is a car body, 14 is a front wheel, 15 is a rear wheel, 16 is a drum cutter, 40
Is an auxiliary wheel.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Osamu Iwakata 1-3 Takaracho, Kashiwazaki-shi, Niigata Komatsu Zoki Co., Ltd. Kashiwazaki factory

Claims (1)

[Scope of utility model registration request] 1. A pair of front wheels 14, 14 at the front left and right positions of the vehicle body 13.
A pair of rear wheels 15 and 15 and a drum cutter 16 are provided at the rear of the vehicle body 13, one rear wheel 15 is located behind one front wheel 14, and the drum cutter 16 is located behind the other front wheel 14. The other rear wheel 15 is located in the middle of the one rear wheel 15 and the drum cutter 16 in the left-right direction, and the center of rotation of the pair of rear wheels 15, 15 and the center of rotation of the drum cutter 16 are orthogonal to the front-rear direction of the vehicle body. In a road surface cutting machine provided so as to have the same axis, the drum cutter 16 has a cylindrical auxiliary wheel that covers an outer peripheral surface of the drum cutter 16.
A road surface cutting machine that is equipped with 40 attached detachably.