JPH0621935Y2 - Sweeper dust box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a brush type sweeper for cleaning a road surface, and particularly to a dust box thereof.

[Prior Art] In a conventional brush type sweeper, for example, as shown in FIG. 3, a rotary brush 2 for cleaning dust is rotatably supported behind a tire 1 supported by a front axle. A dust box 3 for accommodating the dust swept up by is detachably attached to the frame 4. A guide rail 5 is provided on the inner surface of the frame 4 on each of the left and right sides, and a support bracket 6 is fixed to the front end portion. As shown in FIGS. 4 and 5, the dust box 3 has rollers 7 and pins 8 on the outer surfaces of the left and right side plates 3a. The rollers 7 are placed on the guide rails 5 and the pins 8 are supported by a support bracket. By fitting in the groove of 6, the frame 4 is mounted.

The dust box 3 is provided with an opening 3b serving as an intake and a dump for dust, facing the rotating brush 2. At the lower part of the opening 3b, a dust return prevention plate 9 bent in a chevron shape is provided horizontally, and the plate 9 prevents the dust once stored in the dust box 3 from returning.

Further, reference numeral 10 is a lip made of a wear-resistant elastic material attached to the dust return prevention plate 9, the tip of which contacts the road surface, and the dust swept up by the rotating brush 2 is put in the dust box 3. It is for leading in efficiently.

[Problems to be Solved by the Invention] In such a dust box 3, by removing the pin 8 from the groove of the support bracket 6 and pulling the roller 7 so as to roll on the guide rail 5, the frame 4 is applied with a small force.
Can be pulled from. However, since the dust box 3 comes into contact with the road surface before being completely pulled out from the frame 4, moving the dust box 3 thereafter requires a great deal of labor. Therefore, it is not easy to remove the dust box 3 from the sweeper body and move it to a predetermined dump site.

Further, as shown in FIG. 4, most of the lip 10 is in contact with the road surface, so that dragging the dust box 3 in this state may damage the lip 10.

Further, when dumping dust, the dust return prevention plate 9
The edge part of FIG. 4 rotates the dust box 3 with the lower end of the opening 3b in FIG. 4 as a fulcrum to turn the opening 3b downward (see FIG. 5). Since it must be bent as a fulcrum of rotation, the lip 10 interferes with the rotation and makes it difficult to rotate,
Lip due to sharp bend of lip 10 at bottom of 3b
There is also the problem of 10 being damaged early.

Therefore, not only the purpose of the present invention, the movement and the dumping of dust can be performed easily, but also when rotating from horizontal to vertical for dumping, the rotation is easy and the useful life of the lip is long. To provide a sweeper dust box that can be extended.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention has a sweeper frame with an opening for dust collection / disposal formed at an end located on the inner side for removal. In a dust box that is mounted horizontally as much as possible and provided with an elastic lip that extends outward at the lower end of the end part, at the bottom of the dust box in the horizontal position and at a position adjacent to the opening. When the roller is provided so as to project downward from the bottom portion, and the positional relationship between the lower end of the opening and the roller is such that when the dust box is placed vertically with the opening downward, the dust box Is configured to rotate about the roller as a fulcrum.

[Operation] In the above-mentioned configuration, when the dust box in the horizontal state is taken out from the sweeper, the dust box is supported on the floor by the rollers at the bottom thereof. At this time, since there is a gap between the bottom and the roller grounding point, the lip extending outward from the lower end of the end of the dust box, which is the opening, does not contact the floor surface on its entire surface.

Since it is supported by the rollers, the dust box is pulled by a light force and moved to the dust dumping position. At this dust dumping position, the dust box is rotated vertically, but at this time, the dust box is rotated about the fulcrum, and the lip is not sharply bent.

[Embodiment] Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the drawings. In the drawings, the same reference numerals are used for the same or corresponding portions.

FIG. 1 shows a horizontal type dust box of a brush type sweeper to which the present invention is applied. The dust box 3 has a frame (not shown) of the sweeper formed by the rollers 7 and the pins 8 similarly to the conventional configuration described above.
It is designed to be detachably mounted horizontally.
In the lower part (the lower side in FIG. 1) of the opening 3b that takes in the dust swept up by the rotating brush (not shown),
A chevron-shaped dust return prevention plate 9 is arranged, and a lip 10 made of an elastic material is attached to the plate 9 so as to extend outward from the lower end of the opening 3b.

Each of the left and right side plates 3a of the dust box 3 has a roller mounting bracket 3c protruding downward from a corner (at the bottom of the dust box 3) adjacent to the opening 3b, and the roller 15 rotates on the mounting bracket 3c. It is possible to install. The distance d between the grounding point of the roller 15 and the bottom of the dust box 3 is preferably selected so that the roller 15 is slightly separated from the road surface when the dust box 3 is attached to the frame of the sweeper.

Further, as can be understood from the figure, the positional relationship between the lower end of the opening 3b and the roller 15 is such that when the dust box 3 is placed vertically with the opening 3b facing downward as shown in FIG. The dust box 3 is selected to rotate about the roller 15 as a fulcrum.

In the dust box 3 of this embodiment, one assist stand 16 protruding from the opening 3b is fixed to each of the left and right sides of the upper plate 3d. In addition, a handle for rotating the dust box 3 is provided on the upper surface of the upper plate 3d opposite to the opening 3b.
17 is attached.

In such a structure, when the dust box 3 is removed from the frame, the roller 15 contacts the road surface, so that the dust box 3 can be freely moved. Therefore, after the dust box 3 is completely pulled out from the sweeper body, it can be easily transported to a position suitable for dumping dust.

Next, when dumping dust in the dust box 3, the handle 17 is pulled, and the dust box 3 is rotated about the roller 15 as a fulcrum and, strictly speaking, about its rotation shaft 18 as a fulcrum until the assist stun 16 contacts the road surface. At this time, since the lip 10 itself does not serve as a fulcrum of rotation and cannot be bent in an unreasonable manner, it does not hinder the rotation, and the force required to bring it to the state shown in FIGS. It can be extremely small.

The assist stand 16 forms a gap suitable for dumping between the opening 3b and the floor surface or the road surface, and can secure an escape route for dust. Further, by rotating the dust boss 3 back and forth like hitting the road surface with the assist stand 16, it is possible to shake off the dust collected on the inner surface of the dust box 3. In the past, since such an assist stand 16 was not provided,
If the dust box 3 was not supported by hand, a gap could not be formed between the opening 3b and the road surface, which was inconvenient.

Further, even during the dumping of dust, the position of the dust box 3 can be easily changed by the roller 15, so that it is possible to fix the dust box 3 at one place and take out the dust more efficiently than this dumping.

[Advantages of the Invention] As described above, according to the present invention, the dust box removed from the frame of the sweeper can be easily moved and rotated. Therefore, the labor required for dumping dust is reduced, and the work efficiency is improved.

Also, because the roller is provided at the bottom of the dust box, the lip does not come into contact with the road surface over its entire surface, damage to the lip is reduced, and the roller serves as a rotation fulcrum when the dust box rotates, so the lip is The dust box does not bend sharply, the dust box can be rotated more easily, and the damage to the lip is further reduced, so that the useful life of the dust box can be extended.

[Brief description of drawings]

FIG. 1 is a side view showing a dust box of a sweeper according to the present invention in a horizontal position, and FIG. 2 is a side view showing the dust boss of FIG. 1 in a vertical position at the time of dumping dust.
FIG. 3 is a side view showing a conventional sweeper equipped with a dust box, and FIGS. 4 and 5 are side views showing a conventional dust box. 3 ... dust box, 3b ... opening 3c ... roller mounting bracket 4 ... frame, 10 ... elastic lip 15 ... roller, 16 ... assist stand 17 ... handle

Claims (1)

[Scope of utility model registration request] 1. A sweeper frame is provided with an opening for dust collection / discarding formed at an end portion on the rear side, is detachably mounted in a horizontal position, and is attached to a lower end of the end portion. In a dust box provided with an elastic lip extending toward one side, a roller is provided at a bottom portion of the dust box in a horizontal position and adjacent to the opening portion so as to project downward from the bottom portion, and the opening is provided. The positional relationship between the end lower end of the portion and the roller is configured such that the dust box rotates about the roller as a fulcrum when the dust box is placed vertically with the opening downward. Sweeper dust box featuring.