JPH11290252A - Frame structure of cleaning vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight and compact frame structure in a cleaning vehicle used by being mounted on a forklift. SOLUTION: Left and right side members 2 extended parallel in the front and back direction are constituted by a hollow member with a U-shaped cross section into which a fork of a forklift can be inserted. In addition, a frame 1 is constituted by binding both left and right side members 2 with three kinds of functional members consisting of an axle beam 3 for, supporting back wheels extending in the vehicle width direction, a brush box 4 for covering a main brush and a filter box 5 for storing a filter unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame structure of a cleaning car used for cleaning floors of factories and warehouses, and more particularly to a frame structure suitable for a cleaning car mounted on a forklift. .

[0002]

2. Description of the Related Art Attachment type cleaning vehicles used by being mounted on a forklift are disclosed, for example, in Japanese Patent Application Laid-Open No.
No. 302636 is known. The cleaning vehicle described in the publication is mounted by inserting a fork of a forklift into a fork mounting member provided on the upper surface of a frame of the cleaning vehicle and connecting the forklift, pushing the cleaning vehicle forward with the forklift, and using the cleaning vehicle. The configuration is such that the rotation of the rear wheel at the time of pushing is used as a rotational driving force of a main brush, a side brush and the like using a transmission member such as a belt.

[0003]

By the way, in the cleaning vehicle described in the publication, the frame of the cleaning vehicle is constituted by a rectangular frame as a strength member, and the frame has wheels, a main brush, a side brush, and a dust collecting box. , A filter box, and a functional component such as a fork mounting member for inserting a fork. However, the structure in which the frame of the cleaning vehicle is configured by the frame and the functional components are assembled to the frame has a problem in that the weight of the cleaning vehicle increases and the size of the cleaning vehicle increases.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a light-weight and compact frame structure for a cleaning car mounted on a forklift. Is to do.

[0005]

To achieve the above object, the present invention is configured as follows. That is, the invention of claim 1 is a frame structure of a cleaning car, which is provided with left and right side members formed of hollow members into which forks of a forklift can be inserted while extending in the front-rear direction. The side members are connected to each other by an axle beam supporting wheels, a brush box covering a main brush, and a filter box containing a filter unit.

According to the first aspect of the present invention, a frame is formed by combining functional members. That is, since all the constituent members of the frame are composed of functional members, and there is no dedicated member for the frame configuration, a lightweight and compact frame structure is achieved, and the structure is not wasted on materials. An inexpensive frame structure is provided.

According to a second aspect of the present invention, in the frame structure of a cleaning car according to the first aspect, the filter box is provided between the lower surfaces of the left and right side members, and the filter box stands on the front and rear upper surfaces of the filter receiving plate. It is formed in a rectangular box shape with the upper part opened by the front and rear plates provided and extending between the inner surfaces of the left and right side members and the inner surfaces of the left and right side members. According to the second aspect of the invention configured as described above, the left and right side members also serve as side wall surfaces of the filter box. For this reason, it is effective in reducing the material and reducing the weight.

According to a third aspect of the present invention, in the frame structure for a cleaning car according to the first or second aspect, the axle beam is formed in a substantially gate shape in which both axial sides of a rod-shaped member having a U-shaped cross section are bent downward. The downwardly bent portion is a wheel support leg. Claim 3 having such a configuration
According to the invention, the strength necessary for supporting the vehicle weight can be easily obtained while having a simple structure, and the rigidity in the vehicle width direction can be increased.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is directed to an attachment-type cleaning vehicle that is used by being mounted on a forklift. FIG. 1 shows an external appearance of the entire cleaning vehicle, and FIGS. It is shown. FIG.
As shown in FIG. 4, the frame 1 of the cleaning car includes two left and right side members 2 extending parallel to each other in the front-rear direction as main strength members. An axle beam 3 for supporting the rear wheel extending in the vehicle width direction (left-right direction) on the lower surface side, a brush box 4 for covering the main brush 8, and a filter box 5 for accommodating the filter unit. Are connected to each other. That is, the frame 1 of the cleaning car according to the present embodiment is composed of two left and right side members 2 that extend in the front-rear direction and are opposed to each other.
And three types of functional members extending in the vehicle width direction are welded to each other by welding, and the left and right side members 2 are closed by the functional members.

Next, the frame 1 configured as described above
The individual structure of each component will be described. The left and right side members 2 are hollow members having a U-shaped cross section with an open lower surface, and constitute a fork pocket into which a fork 22 mounted on a lift bracket 21 as an elevating member that moves up and down along a mast of a forklift can be inserted. ing. The axle beam 3 is formed in a substantially gate shape in which both sides (left and right sides) in the axial direction of a rod-shaped member having a U-shaped cross section having an open lower surface side are bent downward at substantially right angles, and are disposed on the lower surface of the rear end of the side member 2. In this state, the horizontal upper surface is joined to the side member 2 by welding. The left and right bent portions are wheel supporting legs 3a, and the axle 6 is fixed to the wheel supporting legs 3a, and the rear wheel 7 is rotatably mounted on the axle 6. The brush box 4 is formed in a rectangular parallelepiped shape with an open lower surface, and is arranged on the rear lower surface between the left and right side members 2 and has an upper wall surface joined to the side member 2 by welding. The main brush 8 is rotatably accommodated therein.

The filter box 5 for accommodating the filter unit includes a filter receiving plate 5a constituting a bottom surface,
The front and rear plates 5b constituting the front and rear wall surfaces and the inner side surfaces of the side members 2 constituting the left and right wall surfaces are formed in a rectangular box shape having an open upper side. The filter receiving plate 5a is arranged on the front lower surface between the side members 2 and is connected to the side members 2 by welding, and has a dust suction opening 5c at the center thereof. The front and rear plates 5b are erected on the upper surfaces of both front and rear ends of the filter receiving plate 5a, respectively.
Extending between the inner side surfaces. In the present embodiment, the upper surface of the filter box 5 is separated from the upper surface of the brush box 4 by setting the rear plate 5b higher than the upper surface of the side member-2. The plate 5 b has a connection port 5 for connecting a dust suction blower (not shown) installed on the upper surface side of the brush box 4 to the inside of the filter box 5.
d is provided.

Next, a structure other than the frame 1 of the cleaning car according to the present embodiment will be described with reference to FIG. In front of the brush box 4 and below the filter box 5,
A dust collection box 9 for collecting dust swept by the main brush 8 is provided. Dust collection box 9
Has a dust collecting port 9a with a rubber lip 9b on the rear surface facing the main brush 8, and has an opening communicating with the opening 5c on an upper wall surface of the filter box 5 facing the filter receiving plate 5a. Is attached to the front end of the side member 2 by a pin 10 so as to be vertically rotatable. The dust collecting box 9 is always pushed up to a dust collecting position indicated by a solid line in the figure by a caster 11 abutting on the floor surface, and is held by a box support (not shown). When the holding by the box support is released, the dust collection port is rotated by its own weight to the dust disposal position indicated by the imaginary line in the drawing, and the dust is discharged.

In addition, a side brush 12 is provided in front of the right side of the cleaning vehicle for bringing dust in the traveling direction to the center. The side brush 12 is the right side member 1
Support arm 1 rotatably attached to the front end of the brush
3 is rotatably mounted via a vertically extending rotary shaft 14 and is always in contact with the floor surface, but when not in use, the brush support arm 13 is manually operated.
It is configured to be able to jump up together. In the present embodiment, although not shown, the rotational force of the rear wheel 7 that is driven and rotated when the forklift is pushed by a forklift in a state where the forklift is lowered on the floor is a chain type or belt type. By transmitting to the main brush 8 and the side brush 12 via a power transmission means such as a power transmission mechanism or a gear type increase / decrease gear, these are rotationally driven,
Further, a dust suction blower for sucking dust is driven by a similar driving method.

A main cover 15 is provided on the upper surface of the frame 1 so as to be detachable or openable. The power transmission means, the dust-blowing blower and the filter box 5 are mounted on the upper surface of the frame 1 by the main cover 15. Is covered. In addition, of the main cover 15,
At least the surface of the front part covering the upper surface of the filter box 5 and the contact surface with the frame 1, that is, the surface of the front and rear plates 5b and the contact surfaces with the front upper surfaces of the left and right side members 2 contain dirt including dust in the filter box 5. Seals are provided to prevent leaked air.

As shown in FIG. 3, the cleaning truck constructed as described above inserts a fork 22 of a forklift into the left and right side members 2 of the frame 1 and prevents the forklift from being pulled out via a suitable hook (not shown). It is used in a state where it is mounted, that is, mounted on a forklift. When the cleaning wheel is pushed by a forklift in a state where the rear wheel 7 and the casters 11 are in contact with the floor, the rotation of the rear wheel 7 is transmitted to the main brush 8 and the side brush 12 via the power transmission means. . That is, the floor brush can be cleaned by rotating the main brush 8 and the side brushes 12 using the rotational force of the rear wheel 7. In this case, the dust suction blower is also driven to rotate in the same manner, and the air containing fine dust in the dust collection box 9 swept up by the sweeping of the main brush 8 is sucked and filtered through the filter unit.

In the present embodiment, the frame 1 of the cleaning car is constituted entirely by a combination of functional members. That is, the side members 2 constituting the fork pocket into which the fork 22 is inserted are used as main strength members, and the two side members 2 are connected to each other by three types of functional members of the axle beam 3, the brush box 4, and the filter box 5. By doing frame 1
In the structure of the frame 1, there is no dedicated member, so that a lightweight and compact frame structure can be achieved. Structure can be provided.

Further, in the present embodiment, the axle beam 3 is formed of a bar-shaped member having a U-shaped cross section, and both ends in the axial direction are bent downward to form the wheel support legs 3a. Then, it is possible to easily secure necessary strength against the lateral load and the vehicle weight acting on the frame 1. Further, in the present embodiment, the filter receiving plate 5a is coupled between the lower surfaces of the left and right side members 2 and the upper surface of the front and rear end portions of the filter receiving plate 5a extends over the inner surfaces of the left and right side members 2 respectively. By arranging the plate 5b, the left and right side walls of the filter box 5 are also used by the side members 2, so that the filter box 5 can be configured with a small amount of material.

Further, in this embodiment, the upper surfaces of the left and right side members 2 constituting the fork pocket and the axle beam 3 for connecting the both side members 2 to each other.
And on the upper surface of the brush box 4, equipment necessary for a cleaning car,
Since the devices are mounted and covered by the main cover 15, it is possible to perform maintenance work with the devices and devices exposed by removing or opening the main cover 15, thereby improving serviceability. Is improved, and the appearance is also improved.

In this embodiment, the axle beam 3, the brush box 4, and the filter box 5 are joined to the side member 2 by welding. However, the joining means is not limited to welding. Other means such as rivets may be used. Also, side member 2
Is constituted by a hollow member having a U-shaped cross section, but a hollow member having a rectangular cross section may be used. In short, any hollow member into which the fork 22 can be inserted may be used. Further, the main cover 15 may be configured such that a portion covering the filter box 5 is formed separately. Further, in the present embodiment, the case where the main brush 8, the side brush 12, and the dust-absorbing brush are driven by using the rotational force of the rear wheel 7 has been described as an example. The present invention may be applied to a cleaning device equipped with a power unit in which wheels are driven by an engine and a brush is driven.

[0020]

As described in detail above, according to the present invention,
Attachment type cleaning trucks that are mounted on forklifts and used, all components of the frame are composed of functional components, and there is no dedicated member for frame configuration. Achieved, and a structure with no waste of material can be provided, and an inexpensive frame structure can be provided.

[Brief description of the drawings]

FIG. 1 is a side view showing the appearance of an attachment type cleaning car.

FIG. 2 is a plan view showing a frame structure of the cleaning car.

FIG. 3 is a side sectional view of the same.

FIG. 4 is a rear view of the same.

[Explanation of symbols]

 1. Frame 2. Side member 3. Axle beam 4. Brush box 5. Filter box

Claims (3)

[Claims] Claims: 1
The forklift is provided with left and right side members made of hollow members into which forks can be inserted, and the left and right side members are mutually separated by an axle beam supporting wheels, a brush box covering a main brush, and a filter box containing a filter unit. The frame structure of the cleaning car constructed by combining. 2. A filter box disposed between the lower surfaces of left and right side members, and a filter box standing upright on front and rear upper surfaces of the filter plate and extending between inner surfaces of the left and right side members. The frame structure of a cleaning car according to claim 1, wherein the frame is formed in a rectangular box shape whose upper part is opened by the plate and the inner surfaces of the left and right side members. 3. The cleaning according to claim 1, wherein the axle beam is formed in a substantially gate shape in which both sides in the axial direction of a rod-shaped member having a U-shaped cross section are bent downward, and the downward bent portion is a wheel support leg. Car frame structure.