JPH063847Y2 - Traveling power cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a traveling type power cleaner equipped with a removable dust box.

[Prior Art] A conventional traveling type power cleaner includes a vehicle body frame having an opening at a front portion thereof and a dust box detachable from the opening. When the collected dust is discarded, the dust box is of a type in which the dust box is directly separated from the opening of the frame by a manual operation, and then suspended and transported to a predetermined disposal place.

However, the total weight of a dust box that contains a large amount of dust is considerable, and the work of detaching it from the opening of the body frame and transporting it to a predetermined disposal place imposes a considerable burden on the worker. Is. In order to reduce such a burden, for example, Japanese Utility Model Publication No. 60-4065
The device disclosed in Japanese Patent No. 3 is known. The dust box of the present invention is provided with a transport wheel and a folding operation lever, and is detachably attached to the body frame in a three-point support type.

[Problems to be Solved by the Invention] However, although the structure of the above-mentioned invention is partially improved in the transportation means of the dust box after it is detached from the body frame, it still causes inconvenience when detaching the dust box from the body frame. . That is, due to the structure of the work to remove the dust box in which dust has accumulated, it is necessary to pull out the dust box in the horizontal direction with the front part on the side opposite to the dust intake port being lifted. There is a possibility of spilling from the inclined dust intake. Moreover, the annoying operation of pulling out the dust box while lifting it with both hands has not disappeared.

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems with a simple structure to create a traveling type power cleaner, which is a technical problem to be solved.

[Means for Solving the Problems] In order to solve the above problems, the present invention includes a vehicle body frame having an opening in the front and a dust box that can be attached to and detached from the opening, and the inner walls facing each other of the opening are provided. Is a bent hook portion and a guide wall extending above the hook portion is formed to overhang, and both outer side walls of the dust box having a dust inlet at the rear end,
At the fulcrum position where the moment of gravity urges the dust box to tilt backward, a pivot shaft that can be engaged with the hooked portion, and a stopper that abuts the guide wall to maintain the posture of the dust box are respectively provided. On the outer wall of the dust box, there is adopted a structure in which a rolling wheel capable of grounding and a foldable operation lever are mounted by tilting forward with the pivot shaft as a fulcrum.

[Operation] Therefore, when discarding the dust contained in the dust box, first raise the folding operation lever, and then
By pushing this down to the front side, the entire dust box is rotated forward about the pivot shaft that engages with the hooked portion of the body frame. By this rotation, the stopper is separated from the guide wall, and when the following rolling wheel comes into contact with the ground, the rotation fulcrum is automatically transferred to the rolling wheel, and therefore the forward tilt rotation by the operation lever is further continued. As a result, the rear end side of the dust box with the dust intake is lifted, and at the same time, the pivot shaft also floats and the engagement with the hook stopper is released, so the dust box is used as it is by utilizing the rolling of the same rolling wheel. It can be pulled out horizontally. Then, the subsequent transportation is performed by the same operation as that of a normal hand cart.

When mounting the dust box on the vehicle body frame, the dust box is carried into the opening of the vehicle body frame with the rolling wheels as guides. On the contrary, at the time of disengagement, the pivot shaft is engaged backward with the dust box with the rolling wheel as a fulcrum, and the pivot shaft is engaged with the hooking portion. Thereafter, the moment of gravity acting on the dust box about the pivot shaft is utilized. If the backward rotation is continued, the dust intake side of the dust box moves downward as the rolling wheels float, and the mounting is completed when the stopper abuts the guide wall. Of course, the operation lever is folded in this state.

[Embodiment] FIGS. 1 to 9 show a traveling type power cleaner of an embodiment according to the present invention.
It will be described with reference to the drawings.

In the figure, reference numeral 1 denotes a vehicle body frame, which has an opening 10 at a front portion for detachably mounting a dust box 2 described later. Bent hooked portions 111, 111 and guide walls 112, 112 extending upward by the bent hooked portions 111, 111 are formed on the left and right inner wall surfaces 11, 11 of the opening 10 facing each other.
Drive wheels 13 and caster-type driven wheels 14 are axially supported in front and rear of the body frame 1. A rotating brush 150 is housed in a brush chamber 15 formed between the wheels 13 and 14. The rotating brush 150 receives the driving force of the engine E via the driving force transmission mechanism 16 and is configured to rotate in a direction (arrow X2 direction) opposite to the traveling direction of the vehicle body 1 (arrow X1 direction). . The operation handle 17 standing upright on the rear side of the body frame 1 and sucking fine dust,
A filter box 18 to be housed is attached.

The dust box 2 has a box shape having a dust intake port 20 at a rear end position facing the opening 10 side of the vehicle body frame 1. A rubber plate 200 capable of closely contacting the road surface L is connected to the lowermost portion on the dust intake 20 side. On both outer side walls 21, 21 of the dust box 2, pivot shafts 211, 21 which can be engaged with the hook stoppers 111, 111 at a fulcrum position P where a moment of gravity promotes backward tilting of the dust box 2.
1 is projected in the horizontal direction. Pivots 211, 211
A stopper 21 that abuts the guide walls 112, 112 on the upper side to hold the dust box 2 in a normal posture.
2, 212 are respectively provided so as to project. The front wall 23 of the dust box 2 is always in a levitated state, and is supported by the pivot shaft 21.
A pair of left and right rolling wheels 24, 24 capable of contacting the ground by forward leaning with 1, 1 as a fulcrum are mounted. A pair of foldable operation levers 26, 26 are mounted on the front upper wall 25 of the dust box 2.

According to this structure, the vehicle body frame 1 shown in FIG.
When the dust box 2 is mounted in the opening 10, the operating lever 26, which is erected as shown in FIG. 6, is operated to carry the dust box 2 into the opening 10 of the vehicle body frame 1 by using the rolling wheels 24 as guides. Next, the operating lever 2
6 is moved from the C position shown in FIG. 1 to the B position, and the pivot shaft 211 is engaged with the clasp 111 by the rearward tilting rotation of the dust box 2 with the rolling wheels 24 as the fulcrum. Two
If the tilting rotation is continued by using the moment of gravity acting on the dust box 2 around the center 11, the dust intake port 20 side of the dust box 2 moves downward as the rolling wheels 24 float, and the stopper 212 guides the guide wall. The mounting is completed at the time of hitting 112. The operation lever 26 in the A position is folded on the front upper wall 25 of the dust box 2.

As shown in FIG. 7, the traveling type power cleaner cleans the road surface L by rotating the rotating brush 150 while driving the rotary brush 150, and as shown in FIG. When the dust box 2 collides with the two rolling wheels 24, the dust box 2 moves along the pivot shaft 211 and the stopper 212 along the guide wall 112 of the vehicle body frame 1. Also,
When a large obstacle collides with the bottom portion of the dust box 2 as shown in FIG. 9, the dust box 2 rotates about the pivot shaft 211 by the action in a direction opposite to the action of the moment of gravity. Therefore, even if an obstacle collides with the rolling wheels 24 and the bottom, the dust box 2 can move upward to soften the impact and overcome the obstacle, which hinders the traveling of the traveling type power cleaner. Don't come

When the dust contained in the dust box 2 is to be discarded, the operation lever 26 folded as shown in FIG. 7 is raised to the A position shown in FIG. 1 and pushed down to the front side. The pivot shaft 2 that engages with the hooked portion 111 of the vehicle body frame 1 by moving from the A position to the B position
The dust box 2 as a whole is tilted forward around 11 as a center. By this rotation, the stopper 212 is separated from the guide wall 112, and when the following rolling wheel 24 comes into contact with the ground, the rotation fulcrum is automatically transferred to the rolling wheel 24. Continue from position B to position C. As a result, the rear end side of the dust box 2 having the dust intake port 20 is lifted up, and at the same time, the pivot shaft 211 also floats and disengages from the clasp portion 111, so that the rolling of the rolling wheel 24 is utilized. Then, by moving the operation lever 26 in the C position in parallel in the direction of arrow X1, the dust box 2 can be pulled out to the front side in the horizontal direction as it is. Therefore, the dust accumulated in the dust box 2 does not spill outside. Then, the subsequent transportation is performed by the same operation as that of a normal hand cart. Then, the dust box 2 which has been emptied by discarding the dust inside is mounted again in the opening 10 of the vehicle body frame 1 for use.

Next, FIGS. 10 and 11 show a modification of the embodiment of the present invention. In this modification, the same components as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In this modification, a hook 27 is provided on the front side of the dust box 2A, and an engaging protrusion 28 that is detachable from the hook 27, a pair of left and right operation levers 26a, and a rolling wheel 24.
The operation tool 29 having a is used. That is, when the dust box 2A is attached to or detached from the opening 10 of the frame 1, the hook 27 engages with the engaging protrusion 28 of the operation tool 29.
And the operating lever 26a is operated in the same manner as in the above-described embodiment, the same operational effect as that of the embodiment can be obtained.

The operation lever 26a of the operation tool 29 may be an upright fixed type operation tool 29 that is stored in another place and brought out and used only when necessary, or as a foldable operation lever 26a in front of the dust box 2A. It can also be detachably mounted on the upper wall 25a.

[Effect] In the traveling type power cleaner of the present invention described in detail above, when the dust box is attached to or detached from the vehicle body frame, the pivot shaft is simply moved up or down by using the lever principle. Also, the rolling wheels can be rotated in the rearward tilting direction and the frontward tilting direction, respectively, and the dust box can be detached and attached very easily without interfering with the vehicle body frame.

Therefore, according to the present invention, unlike the conventional case, it is not necessary to lift and remove the dust box with both hands and attach / detach to / from the vehicle body frame, and particularly when removing a heavy dust box containing dust from the vehicle body frame, the burden on the operator is reduced. it can.

Further, since the dust box is rotated in the forward tilt direction and then removed from the vehicle body frame, the dust inside does not spill out from the dust inlet.

Furthermore, it is movable with respect to the dust box and the frame of the vehicle body, and even if an obstacle such as a stone collides with the bottom of the dust box and the rolling wheels during the cleaning traveling of the traveling type power cleaner, a stopper is provided. Also, the pivot shaft moves from the initial engagement position of the guide wall and the hook portion, and the entire dust box moves in the direction to get over the obstacle, so that the dust box can alleviate the impact received from the obstacle and damage it. Never happens.

[Brief description of drawings]

1 to 9 are explanatory views of an embodiment according to the present invention.
FIG. 1 is a side view showing the whole of the traveling type power cleaner, FIG. 2 is a side view of the vehicle body frame with the dust box removed in FIG. 1, and FIG. 3 is an opening side of the vehicle body frame with the dust box removed. 4 is a plan view showing only the dust box, FIG. 5 is a side view of FIG. 4, and FIG. 6 is a side view showing a state in which the dust box of FIG. 4 is conveyed. Is a side view showing a state where the dust box is held at a fixed position, FIG. 8 is a side view showing a case where an obstacle collides with a rolling wheel of the dust box, and FIG. 9 is a side view showing that the obstacle collides with the bottom of the dust box. FIG. 10 is a side view showing a state in which the operating tool is engaged with the dust box, and FIG. 11 is a side view showing an essential part of another embodiment. DESCRIPTION OF SYMBOLS 1 ... Body frame, 10 ... Opening 11 ... Inner side wall, 111 ... Hook stop 112 ... Guide wall 2, 2A ... Dust box 211 ... Pivot shaft, 212 ... Stopper 24, 24a ... Rolling wheel 26, 26a ... Operation lever 27 ... Hook, 28 ... Engaging protrusion 29 ... Operation tool

Claims (1)

[Scope of utility model registration request] 1. A vehicle body frame having an opening at a front portion thereof, and a dust box which can be freely attached to and detached from the opening, and a bent hooking portion and guides extending upward from the hooking portion on both inner sidewalls of the opening facing each other. On both outer side walls of the dust box having a wall overhanging and having a dust inlet at the rear end, a pivot shaft which can be engaged with the hook stopper at a fulcrum position where a moment of gravity urges the dust box to tilt backward. , And stoppers for keeping the posture of the dust box in contact with the guide wall, respectively, and the outer wall of the dust box has a rolling wheel capable of grounding and a foldable operation by forward tilting with the pivot shaft as a fulcrum. A traveling power cleaner that is equipped with a lever.