JPH026093Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a safety device for a small snow blower when reversing.

[Prior Art] Compact snow blowers are used to remove snow from roads, farm roads, parking lots, etc., but when backing up, there are obstacles such as high snow walls, standing trees, fences, etc. If workers were not aware of the obstacles, they could get caught between the obstacles and the aircraft and be injured.

The same problem also occurs when an inexperienced worker makes a mistake in forward/backward movement.

In order to solve this point, Utility Model Application Publication No. 49-20925,
There was a safety device disclosed in Japanese Utility Model Publication No. 54-183931, but both of these devices are meant to protect workers from slipping and falling on the snow surface, and are designed to protect workers from falling between the handle and an obstacle. There was a drawback that the safety device would not operate if the space became too narrow.

[Problems to be solved by the invention] The present invention solves these drawbacks by providing a safety frame at the tip of the handle to automatically and reliably stop the movement of the machine in response to a dangerous situation. A technical challenge is to provide a safety device for small snow blowers that aims to protect the safety of snow blowers.

[Means for solving the problem] The safety frame 3, which is protruded diagonally upward at the rear of the snow blower 1 by the width of the machine body, is moved diagonally downward so that obstacles can collide between the ends of the left and right beams of the handle 2. Moreover, a connecting member 14 is provided to protrude outward from the tip of the handle 2 so as to be freely slidable, and to connect the safety frame 3 and the traveling clutch a provided on the handle 2 so that the traveling clutch a is disengaged when the safety frame 3 is slid. Connect with.

[Embodiment] The drawing shows a bearing rod 7 with a clutch lever 6 attached to the clutch shaft 5 of the traveling clutch a provided on the handle 2 so as to be freely slidable, and the tip of the bearing rod 7 connected to the traveling tension lever 8. A rod 10 with a spring 9 is connected thereto, a bearing sleeve 12 of a release lever 11 is provided on the clutch shaft 5 so as to be able to freely slide, and the tip of the release lever 11 and the safety frame 3 are connected to a connecting member 14.
A locking rod 13 that locks on the lower side of the clutch lever 8 is provided on the opposite side of the release lever 11, and the clutch lever 6 is positioned at a position where the base is locked against the locking rod 13 against the spring 9. When the bearing rod 7 is slid up to the position where it is running, the tip of the bearing rod 7 is connected to the clutch shaft 5.
The figure shows a case where the vehicle is located higher up and maintains the running state.

The rods 10 in the drawings are shown connected via a connecting curved rod 15, and the rods 10 may also be wires.

In the figure, 4 is the mounting plate, 16...tension pulley,
17 is a belt, 18 is a stopper, 19 is a crawler, 20 is a return spring for the release lever,
21 is an engine, and 22 is a transmission section.

[Effects of the invention] Since the present invention is configured as described above, when the snow blower 1 is moving backwards, the operator is on the verge of being caught between the machine and an obstacle such as a snow wall, standing tree, or fence. The worker's abdomen (this may be the lower back or chest depending on the worker's extension) hits the safety frame 3 that protrudes diagonally downward between the tips of the left and right rods of the handle 2, and the impact of this collision When the safety frame 3 slides downward in the vertical direction, the connecting member 14 connected to the safety frame 3
Since the traveling clutch a is disengaged via the reverse movement of the snow blower 1, it is stopped.

In this case, since the safety frame 3 is provided so as to protrude outward from the tip of the handle 2, the safety device is activated just before the operator is completely caught between the handle 2 and the obstacle. Therefore, even if a worker is caught between obstacles, he or she will not be strongly caught, and the safety of the worker can be sufficiently protected.

Moreover, the three widths of this safety frame are the width of the left and right sides of the handle 2, that is, the width of the machine body, so the operating range is widened.
As long as the operator is working within a two-width area of the handle, the safety device will surely work, providing an even safer safety device for a small snow blower.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway perspective view of this device;
The figure is a perspective view of the main parts, and FIG. 3 is a side view showing the operating state. a... Traveling clutch, 1... Snow blower, 2... Handle, 3... Safety frame, 5... Clutch shaft, 6...
...Clutch lever, 7...Bearing rod, 8...Travel tension lever, 9...Spring, 10...
Rod, 11...Release lever, 12...Bearing tube,
13...Latching rod, 14...Connecting rod.

Claims (1)

[Scope of utility model registration request] A safety frame 3, which the operator's abdomen rests on, is placed between the ends of the left and right rods of the handle 2, which is protruded diagonally upward at the rear of the snow blower 1 across the width of the machine, and protrudes diagonally downward from the tip of the handle 2. This small snow removal device is characterized in that the safety frame 3 and the travel clutch a provided on the handle 2 are connected by a connecting member 14 so that the travel clutch a is disengaged when the safety frame 3 is slid. Machine safety equipment.