JPH0723606B2 - Powered sweeper - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a power traveling type sweeper used for cleaning a warehouse, a factory, a road surface, or the like, and more specifically, a dust box detachably attached to a lower portion of a front side of an airframe. The present invention relates to a sweeper equipped with a so-called floating dust box mounted so that it can swing forward and backward.

(Prior Art) FIGS. 4 and 5 show a conventional sweeper of this type, which includes a dust box 32 disposed in front of a machine body 31.
The pins 33 provided on both the left and right side surfaces thereof are engaged with the pin receivers 34 formed on the machine body 31 side so as to be able to rotate back and forth. The center of gravity of the dust box 32 is the pin 33.
It is set to the rear side and is always in the dust box 32.
The stopper bolt 35 of the abutment abuts on the stopper plate 36 on the machine body 31 side, so that the lip 38 provided at the lower edge of the dust sweeping port 37 faces the floor surface with a slight gap and is slightly rearward. The dust box 32 is held so as to be inclined downward, and for the large lump of dust existing on the advancing side during the cleaning work by the main brush 39, the dust box 32 must rotate so as to float on the dust sweep port 37 side. The lip 38 can now go over the trash and proceed. The dust box 32 has casters 40 at the front end.

In addition, the dust box 32 has two left and right operation levers used for attaching and detaching the machine body 31 and transporting it to the garbage disposal site.
It has 41. This operating lever 41 is a dust box 32
It is foldably attached to the front upper part of the box and is normally stored in a state of being folded in the width direction (left-right direction) on the upper surface of the box as shown in FIG.

(Problems to be solved by the invention) However, in the above-mentioned conventional sweeper, the operation lever 41 attached to the dust box 32 is stored in such a manner that it is folded and stored on the upper surface of the box, and its length is limited to the width of the box. Since the length is considerably short, when the dust box 32 is attached to or detached from the machine body 31 and the carrying work is performed, the worker is forced to work in a cramped posture of bending forward as shown by the phantom line in FIG. Has become. Further, the presence of the operation lever 41 increases the weight of the dust box 32, and in the case where the dust box 32 is lifted up and the dust is thrown into the dust box, its handling is inconvenient. Moreover, since the operation lever 41 is retrofitted to the dust box 32, the weight balance of the floating action is lost.

Therefore, an object of the present invention is to provide a sweeper effective for simplifying the work of attaching and detaching the dust box and the work of transporting the dust box.

(Means for Solving the Problems) The present invention is configured as follows to solve the above problems.

That is, in the box storage section formed on the front side of the aircraft,
A power traveling sweeper equipped with a dust box that is detachably supported by a pin formed on the left and right side surfaces and is swingable forward and backward, and a caster is provided on the front side of the dust box.A lever catch is provided above the front end of the dust box. The operation lever is attached to and removed from the lever catch from above, while the operation lever that penetrates the front of the machine and is inserted rearward is supported in a substantially horizontal state in the machine body. It is provided with a lever support part for doing.

(Operation) According to the sweeper configured as described above, the operation lever pulled out from the lever supporting portion of the machine body is inserted into the lever catch of the dust box from above and attached, and in this state, the operation lever is operated to operate with respect to the machine body. It is possible to carry out desorption work and transportation work of the dust box. The operating lever is a structure that can be stored in the machine body in the front-rear direction, and its length can be freely set within the range of the machine body, which is effective for workers to attach and detach and carry in a natural posture. Can be obtained in various lengths.

Also, in the case of raising the dust box to throw away dust at a high position such as a trash can, the weight of the dust box can be reduced by removing the operation lever, making it easier to handle, and with the dust box installed, the operation lever Can be removed from the dust box and stored on the machine side, so the floating function of the dust box can be optimally retained.

(Example) Hereinafter, an example of the present invention will be specifically described with reference to FIGS. 1 to 3. In the figure, reference numeral 1 denotes a machine body provided with front and rear drive wheels 2 having an engine (not shown) as a drive source and driven wheels 3 of a caster type. The engine room 4 is provided with a suction blower at the rear and a filter storage 5 for storing a cassette type filter for filtering the dust sucked by the blower to discharge clean air out of the machine. Is provided with a brush chamber 77 for accommodating the main brush 6 for sweeping dust, and a box accommodating portion 8 for accommodating the dust box 9 at the lower front side.

The dust box 9 is formed in a rectangular box shape whose rear side is opened as a dust sweeping port 9a, and a pair of left and right casters 10 used for carrying the box is provided at the lower portion, and an outer portion is provided at the lower front portion on the left and right outer surfaces. Pin 11 protruding horizontally toward
Stopper bolts 12 are provided on the front upper part, respectively, and side grips 13 for lifting the box are provided on substantially the center of both upper parts. The side grips 13 are provided in the recess formed in the box so as not to project from the box upper surface and the box side surface. Then, in a state where the dust box 9 floats up to a predetermined height from the ground, the pin 11 is fitted from above onto a pin receiver 14 having a semi-arcuate receiving surface provided on the left and right inner wall surfaces of the box housing portion 8. By doing so, it is supported so that it can swing forward and backward.

The pin 11 is set to the front side of the center of gravity of the dust box 9, so that the dust box 9 is always subjected to a rotational force in which the rear side is lowered. This rotational force is generated by the stopper bolt 12 of the box storage portion 8. It is regulated by coming into contact with a stopper plate 15 provided on the inner wall surface. Then, at that time, the dust box 9 is adjusted so that the dust sweep guide lip 9b provided at the lower edge of the dust sweep port 9a comes in contact with the ground or leaves a slight gap and has a slightly downward inclination. To be done.

Therefore, the floating type dust box 9 supported so as to be swingable forward and backward can be rotated so as to float on the dust sweep port 9a side even if there is a large amount of dust on the road surface when the sweeper is running, so that the lip 9b is rotated. Can get over the trash and proceed.

A pair of left and right lever catches 16 for attaching the levers are fixed to the upper part of the front surface of the dust box 9.
This lever catch 16 is, as shown in FIG.
It is formed in a Y-shape when viewed from the side, and the upper and middle two
A circular hole (or a square hole is also possible) 16a is provided in the plate portion for attaching and detaching the lever.

On the other hand, the operating lever 17 used for attaching and detaching and transporting the dust box 9 is formed by bending a round bar (a square bar is also possible) into a substantially U-shape and at the bending side, that is, at an appropriate portion near the grip portion side. It has a structure in which a reinforcing bar is laid horizontally on the operating lever 17
Is of a detachable type by being inserted into and removed from the hole 16a of the lever catch 16 from above, and is always supported by a lever support portion 18 formed on the machine body 1 side.

That is, the lever support portion 18 is provided in the main frame 1a located at the boundary between the engine room portion 4 located at the upper portion of the machine body 1 and the box storage portion 8 and the brush chamber 7 located at the lower portion of the machine body 1. . The lever support portion 18 is composed of a pair of left and right channel members 19 having a U-shaped cross section that extends horizontally in the front-rear direction of the machine body 1.
The left and right sides of the operating lever with their backs facing each other.
Mainframe with a space corresponding to the left and right of 17
The flexible material 20 such as sponge or rubber is adhered to the inner surface of the channel material 19 to prevent the operation lever 17 from rattling due to vibration.

In this case, the position of the channel member 19 is set so as to avoid interference with drive-related devices arranged in the engine room. In this embodiment, the engine is arranged as shown in FIG. It is installed on the left side, avoiding the right side. Further, the channel material 19 is formed to be shorter than the operation lever 17, but it can be supported in a sufficiently stable state by setting the position so as to support the vicinity of the center of gravity of the operation lever 17. If necessary, it is possible to increase the length.

The operation lever 17 is inserted into the machine body 1 through an opening 1b formed in the front end surface of the main frame 1a, and the grip 19 is appropriately protruded from the front surface of the main frame 1a. It is inserted and supported inside. Therefore, the length of the operation lever 17 housed in the machine body 1 in this manner is the length of the vehicle (specifically, from the front end of the dust box 9 to the rear end of the engine room 4).
It is possible to freely set in. Then, the insertion depth of the operation lever 17 is regulated by the distal end thereof being regulated by the stopper 21 provided on the rear side of the main frame 1a, or by the reinforcing bar coming into contact with the front end face of the main frame 1a,
The position of the center of gravity is set to be balanced at that position.
Although not shown, an auxiliary brush for attracting dust toward the center is provided on the front side of the machine base 1.

When the dust in the dust box 9 is discarded in the sweeper configured as described above, the grip portion of the operation lever 17 is grasped and pulled out from the lever support portion 18, which is drawn in phantom line in FIG. 1 and solid line in FIG. As shown by, it is attached by inserting it into the hole 16a of the lever catch 16 of the dust box 9. Then, by tilting the operation lever 17 toward you, the dust box 9 is rotated around the pin 11 to ground the caster 10 on the road surface, and then the operation lever 17 is further tilted to rotate the dust box 9 with the caster 10 as a fulcrum. Then, the pin 11 separates from the pin receiver 14. In this state, by pulling the operating lever 17 toward you, the dust box 9 can be taken out from the box storage section 8 as shown by the phantom line in FIG. 3, and after taking out, the dust box 9 can be transported to the waste disposal site. You can The dust box 9 is attached to the machine body 1 by a reverse operation at the time of removal.

Since the operation lever 17 can freely set the length within the range of the vehicle length as described above, the work can be performed by setting at least the grip portion near the waist of the operator as illustrated. The person can carry out the attachment / detachment and transportation work of the dust box 9 in a comfortable posture without taking an unnatural posture of bending forward.

When the dust in the dust box 9 is to be discarded from a high position such as a komi box, the operation lever 17 is pulled out from the lever catch 16, the side grip 13 is grasped by both hands, and the dust box 9 is lifted. Although the dust is thrown away, in this case, by removing the operation lever 17, the weight of the dust box 9 is reduced, and the dust dumping work is facilitated.

Although the operation lever 17 is U-shaped in this embodiment,
This can be T-shaped or can be changed to two L-shaped on the left and right. In that case, it is desirable to provide a lever detent on the lever catch 16 side and the lever support portion 18 side if necessary.

(Effects of the Invention) As described in detail above, according to the present invention, the operation lever used for the attachment / detachment and transportation of the dust box is of a detachable type with respect to the dust box, and the operation lever is always penetrated through the front face of the machine body. Since it is stored inside the body, the operation lever can be set longer to allow the operator to attach and detach the dust box and carry it in a comfortable posture, and the weight of the box can be reduced by removing the operation lever. As a result, the work of lifting the dust box and throwing out dust becomes easier, and as a result, the work load on the operator can be reduced as compared with the conventional lever folding type.

Further, since the operation lever is removed from the dust box when the dust box is mounted, the floating action of the dust box due to the presence of the operation lever is not adversely affected, and a stable floating action can be obtained.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is an overall side view of a sweeper shown by cutting a part thereof, FIG. 2 is a plan view of the same, and FIG. FIG. 4 is an explanatory view showing a mode of carrying work, FIG. 4 is a side view showing a conventional sweeper, and FIG. 5 is a plan view of a conventional dust box. 1 ... Aircraft, 1a ... Main frame 8 ... Box storage, 9 ... Dust box 10 ... Caster, 11 ... Pin 14 ... Pin receiver, 16 ... Lever catch 17 ... Operating lever, 18 ... Lever support

Claims (1)

[Claims] 1. A box housing portion formed on the front side of the machine body is provided with a dust box which is detachably supported by pins formed on both left and right side surfaces and is swingable back and forth, and at the lower front side of the dust box. Is a power traveling type sweeper equipped with casters, and a lever catch provided on the upper end of the front end of the dust box, an operation lever that can be attached to and detached from the lever catch by inserting and removing from above, and provided inside the fuselage. A power traveling type sweeper having a lever support portion for supporting the operation lever, which is inserted rearward through the front surface of the machine body, in a substantially horizontal state.