JPH072670Y2 - Floor cleaning car gap sealing structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a floor cleaning vehicle, and more particularly to a structure for closing a gap between a dust box and a side frame.

[Prior Art] In a conventional general floor cleaning vehicle, for example, as shown in FIG. 7, dust on the floor surface is caused by rotation of a dust sweeping main brush 2 rotatably supported by a machine base 1. Waste, paper waste,
Small stones, dust, etc. (hereinafter referred to as “dust”) are swept up and sent into the dust box 3 arranged in the front part of the machine base 1.

The dust box 3 is inserted between the left and right side frames 4 so that it can be pulled out, but there is a gap between the dust box 3 and the side frames 4. If air containing dust leaks out from this gap, the cleaning ability of the floor cleaning vehicle is deteriorated. Therefore, normally, the side lip 5 made of an elastic material is provided between the side frame 4 and the dust box 3 along the height direction. It is installed.

As shown in FIGS. 8 and 9, a conventional general side lip 5 is formed by folding an elastic plate made of rubber or other elastic material into two along the longitudinal direction to form a loop portion 6. The overlapped edge portions are sandwiched between the pressing plate 7 and the side frame 4 and fixed by bolts 8. The side surface of the loop portion 6 is the dust box 3
The side frame 4 and the dust box 3 are closed.

[Problems to be Solved by the Invention] However, in such a conventional configuration, a distance from the side frame 4 to a portion of the loop portion 6 in contact with the dust box 3 (hereinafter, referred to as “side lip height”) l Is small, and when the dust box 3 shifts to the left or right, a gap may be formed between the side lip 6 and the dust box 3. It is possible to increase the side lip height 1 by increasing the length of the loop portion 6 in the circumferential direction, but in this case, the contact pressure against the dust box 3 becomes weak, and sufficient sealing ability is obtained. In addition, since the length L in the front-rear direction becomes considerably large, a mounting space problem occurs.

An object of the present invention is to solve such a problem.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention sweeps dust on the floor surface by rotating a main brush in a dust box detachably attached between the left and right side frames. In a floor cleaning vehicle to be collected, a gap sealing structure for closing each gap between the left and right side frames and the dust box, and an elastic material attached to each of the side frames along a height direction. And a bending plate attached to each side frame for bending the side lip so that the tip of each side lip faces the inside of the machine base and abuts on the corresponding side surface of the dust box. It is characterized by a gap sealing structure comprising:

[Operation] In the configuration as described above, the side lip height can be sufficiently secured without impairing the contact pressure with respect to the dust box.

[Embodiment] Hereinafter, a preferred embodiment of a gap sealing structure for a floor cleaning vehicle according to the present invention will be described in detail with reference to the drawings. The gap sealing structure is provided on each of the left and right sides of the floor cleaning vehicle, but since these are substantially the same as being attached to the left and right objects, only the left side in the traveling direction will be described in the present specification. To do. In addition, the same reference numerals are used for the same or corresponding portions in the drawings.

1 and 2 show a first embodiment of the gap sealing structure according to the present invention. In the floor cleaning vehicle provided with the gap sealing structure 10, the dust box 3 is removably attached between the side frames 4 of the machine base in the same manner as the conventional configuration described above. A brush (not shown) sweeps dust.

The gap sealing structure 10 according to the first embodiment has a side lip 5 similar to the conventional one in which a rubber-like elastic plate is bent along the longitudinal direction, and the side lip 5 is provided with a holding plate 7.
Are pressed against the inner surface of the side frame 4. A bending plate 11 having an L-shaped cross section is arranged between the side frame 4 and the side lip 5. The bending plate 11, the side lip 5 and the pressing plate 7 extend along the height direction of the machine base, and the side frame is fixed by the bolt 8 screwed into the screw hole of the side frame 4 through the through hole provided in these. It is fixed integrally to 4. The rising portion 12 of the bending plate 11 bends the side lip 5 substantially at a right angle to the side frame 4, and the most curved portion of the loop portion 6, that is, the tip of the side lip 5 is directed toward the inside of the vehicle body. Therefore, the tip of the side lip 5 comes into contact with the side surface of the dust box 3.

In this way, change the direction of the side lip 5 to the side frame 4
By making the side lip height substantially perpendicular to, the side lip height 1 becomes considerably large, and the contact pressure of the side lip 5 with respect to the dust box 3 also becomes large. On the contrary, since the front-rear length of the side lip 5 is reduced by bending, the front-rear length L of the gap sealing structure 10 is reduced.

Since the bending plate 11 is made of a thin steel plate, the distance from the side frame 4 to the head of the bolt 8 is almost the same as that of the conventional structure shown in FIG. It does not get in the way. However, since it is desirable that the amount of protrusion of the rigid parts such as the bolt 8 is as small as possible, the gap sealing structure 20 shown in FIG.
As described above, the bending plate 21 may be arranged at a position facing the side lip 5 to reduce the thickness of the bending plate 21. Further, as shown in FIG. 4, the bending plate 1
In place of 1,21, a bending plate 31 made of a long thin flat steel plate is provided as a part corresponding to the rising portion to the side frame 4
A gap sealing structure 30 that is welded to the inner surface of the is also conceivable.

5 and 6 show another embodiment of the present invention. The side lip 41 in the gap sealing device 40 according to this embodiment is used as it is without folding the rubber plate in two. This has an advantage that the assembly is easy, although the contact area with the dust box 3 is small. In this embodiment, the pressing plate 42 also has an L-shaped cross section, and cooperates with the L-shaped bending plate 43 to prevent the side lip 41 from collapsing.

[Effects of the Invention] As described above, according to the present invention, although the structure is extremely simple, the gap sealing ability by the side lip is significantly improved, and the cleaning ability of the floor cleaning vehicle can be maintained at a high level. You can In addition, the elastic force of the side lip made of a rubber plate, etc. deteriorates with age, but since the side lip height has been kept sufficient from the beginning of assembly, the contact pressure against the dust box does not drop so much and the gap between the dust box and the side lip is small. There is no gap in the.

Furthermore, according to the present invention, the length of the gap sealing structure in the front-rear direction can be made smaller than that of the conventional structure, so that the degree of freedom in the mounting layout of other components is increased.

[Brief description of drawings]

1 is a horizontal sectional view of the gap sealing structure according to the present invention, FIG. 2 is a perspective view of the gap sealing structure of FIG. 1, FIG. 3 and FIG.
FIG. 5 is a horizontal sectional view showing a modified example of the gap sealing structure of FIGS. 1 and 2, FIG. 5 is a horizontal sectional view of the gap sealing structure according to still another embodiment of the present invention, and FIG. 6 is FIG. FIG. 7 is a perspective view of the gap sealing structure of FIG. 7, FIG. 7 is a side view of a conventional general floor cleaning vehicle, FIG. 8 is a horizontal sectional view of the conventional general gap sealing structure, and FIG. 9 is the gap sealing of FIG. It is a perspective view of a stop structure. In the figure, 2 ... Main brush, 3 ... Dust box, 4 ... Side frame, 5,41 ... Side lip, 6 ... Loop part, 7,42 ... Holding plate, 8 ... Bolt 10,20,30,40 …… Gap sealing structure 11,21,31,43 …… Bending plate 12 …… Rising part

Claims (1)

[Scope of utility model registration request] 1. A floor cleaning vehicle in which dust on a floor is swept up and collected by a dust box detachably mounted between the left and right side frames, in the left and right side frames and the dust box. And a side lip made of an elastic material attached to each of the side frames along a height direction, and a tip portion of each side lip. A gap sealing structure for a floor cleaning vehicle, comprising: a bending plate attached to each of the side frames for bending the side lip so as to contact the corresponding side surface of the dust box toward the inside.