JPH0548856U - Mounting structure of flexible intermediate wall in floor cleaning machine - Google Patents

Abstract

(57) [Summary] [Purpose] The flexible intermediate wall that divides the wash water tank of the floor washer into the clean room and the dirty room is protected from being damaged by repeated bending. [Structure] An outer edge 7a of a flexible intermediate wall 7 that divides the inside of a wash water tank 5 mounted on a machine body into two chambers, a clean liquid chamber 5a and a dirty water chamber 5b, is provided with two holders 6b having front and back sides having different widths. 6c
Then, it is picked up from the front and back and fixed to a support frame 6 provided in the wash water tank 5 with a bolt 6d.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention cleans the floor surface by supplying clean water or detergent solution (hereinafter simply referred to as clean solution) to a cleaning brush rotated by a motor, and cleans the dirty water with a squeegee by the suction force of a blower. It is used in the technical field of a floor washer configured to suck up and collect it. Specifically, the inside of a wash water tank installed in the machine is a clean room containing the above clean solution. And a mounting structure of a flexible intermediate wall that divides the collected waste water into two waste water chambers.

[0002]

[Prior Art]

 A conventional floor cleaning machine (scrubber) is equipped with both a clean liquid tank containing clean liquid and a sewage tank containing sewage inside the machine body, for example, as disclosed in Japanese Utility Model Laid-Open No. 63-18966. Therefore, both tanks cannot be built too large due to space constraints.Therefore, when cleaning a large floor area such as a supermarket or factory, clean liquid is replenished during the cleaning process. It was very inconvenient because it was necessary to drain the sewage.

Therefore, as shown in, for example, JP-A-63-242213 and JP-A-63-2424214, the interior of the wash water tank mounted inside the machine body is divided into two rooms by a flexible intermediate wall. By partitioning one room into a clean room containing fresh liquid and the other room into a clean room containing dirty water, one tank can be used as two rooms to separate clean room and clean room. A floor washer has been developed that has substantially double the volume.

[0004]

[Problems to be solved by the device]

 According to the floor washing machine described above, the flexible intermediate wall relatively increases or decreases the volumes of the cleansing liquid chamber and the dirty water chamber according to the amounts of the cleansing liquid and the dirty water, so that the size of the tank or the entire machine is not increased. Even though the volume of the clean room and the dirty room is substantially increased, the cleaning time can be lengthened. On the other hand, as shown in FIG. 6, the flexible intermediate wall E has the outer edge thereof. Since Ea is clamped from both sides with two front and back holders C and D, and is fixed to the support frame A provided at the center of the wash water tank (not shown) using bolts B, The flexion EH of the flexible intermediate wall E, which repeatedly swells (withdraws) every time it is supplied and drains sewage, that is, fatigue occurs in the peripheral portion of the attachment portion of the intermediate wall, which accelerates aging and lengthens the aging. When used for a period of time, there was a risk of breaking the bent portion EH and causing water leakage.

Therefore, the technical problem of the present invention is to install the flexible intermediate wall in a floor washing machine which is devised so that the flexible intermediate wall does not break at the bent portion even after repeated use for a long period of time. It is to provide the structure.

[0006]

[Means for Solving the Problems]

 Means taken in the present invention to solve the above technical problems are as follows. A flexible middle wall divides the center of the wash water tank mounted on the machine into two rooms, one room is used as the clean room for supplying clean water or detergent solution to the cleaning brush, and the other room is sucked up by the squeegee. In the floor washer that was used as a sewage chamber to store the sewage after cleaning,

(1) The outer edge of the flexible intermediate wall is attached to the center of the wash water tank to form a rectangular window frame as a whole, and the width of the window frame is wide and narrow. Hold it between the two holders.

(2) The inside corners of the front and back holders, which are formed in a rectangular window frame shape as a whole, are formed in rounded surfaces, respectively.

[0009]

[Action]

 The above means operate as follows. The element of (1) above is that the flexible intermediate wall bulges toward the waste water chamber side by the clean liquid contained in the clean liquid chamber at the start of operation to substantially increase the volume of the clean liquid chamber. The amount of clean liquid stored in the clean liquid chamber can be increased by that amount, and when the amount of collected wastewater increases due to the progress of the cleaning operation, the flexible intermediate wall gradually expands to the clean liquid chamber side. Since the volume of the sewage chamber is increased by taking it out, it is possible to substantially increase the volumes of the sterilization chamber and the sewage chamber without increasing the size of the entire tank. The flexible intermediate wall that swells by alternately switching to the sewage chamber side and the cleansing chamber side by swelling when swelling to the sewage chamber side by the two holders configured with different widths of the window frame. Since the bending point can be shifted compared with the case of bulging to the clean fluid chamber side, the bending of the flexible intermediate wall It reduces the labor slow aging, to allow longer be Rukoto life of the flexible intermediate wall.

The element of the above (2) solves the problem that the flexible intermediate wall that swells relatively to the waste water chamber side and the clean water chamber side is caught in the inner corners of the front and back holders and is torn. The rounded surfaces formed on these corners act as guide surfaces to allow the flexible intermediate wall to swell smoothly toward the dirty water chamber or the cleansing liquid chamber. As described above, the technical problems described above can be solved by the above means, and the problems of the conventional technology can be solved.

[0011]

【Example】

 Hereinafter, a preferred embodiment of the mounting structure of the flexible intermediate wall in the floor cleaning machine according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing the internal structure of a floor washer equipped with the present invention, and FIG. 2 is a plan view showing the floor cleaner with the upper case removed. 1, 1 is a floor cleaning machine body, 1a is a steering wheel for driving, 2 is a driving wheel for traveling, 3 is a front wheel, 4 is a cleaning brush rotated by a motor 4M, and 5 is a case on the body 1. Shows the wash water tank installed in.

Inside the washing water tank 5, a mounting frame 6 which is formed into a substantially rectangular window frame is attached to the central portion thereof, and the mounting frame 6 is called vinyl cloth, rubber or canvas cloth. By attaching a flexible intermediate wall 7 made of a substantially trapezoidal bag shape (bucket shape) using a flexible material, the clean liquid chamber 5a containing the clean liquid CW and the waste water DW can be separated. The sewage chamber 5b for accommodating is divided into two rooms, and the water supply pump 8 for supplying the cleaning brush 4 with the fresh liquid C W through the water supply hose 8a is attached to the inside of the fresh water chamber 5a. The suction force of the blower 9a acts through the suction pipe 9, and in response to this suction action, the squeegee 10 and the vacuum hose 11 are passed through the squeegee 10 to wash and collect the dirty water DW from the floor surface. There is. In the figure, 9c indicates an opening / closing valve of the suction pipe 9 provided with a float 9b. Although not shown, the waste water chamber 5b is provided with a drain valve for discharging the waste water DW.

According to the present invention, in the floor washing machine having the above-described structure, the bent portion of the flexible intermediate wall 7 is not easily broken by the relative swelling into the clean liquid chamber 5a and the dirty water chamber 5b. The present invention is characterized in that point, and a specific configuration thereof will be described below based on the description of FIGS. 3 to 5.

FIG. 3 is a plan sectional view showing the whole of the present invention, FIG. 4 is a front view showing a structure of a holder, and FIG. 5 is a plan sectional view showing an enlarged main part of the present invention. In these drawings, 5T and 5T are support angles vertically installed in the front and rear central portions of the wash water tank 5, and the support frame 6 has the angle portions 6a and 6a formed at both front and rear ends thereof. Equi-supporting By attaching to the angles 5T, 5T, it is provided in the center of the wash water tank 5 so as to divide the right and left into two.

Reference numerals 6b and 6c denote two front and back holders, each of which is formed into a rectangular window frame shape like the support frame 6 as a whole, and the flexible intermediate wall 7 described above has an outer edge 7a thereof. By holding the two holders 6b and 6c from both the front and back sides and fixing the two holders 6b and 6c that are held by the multiple bolts 6d to the supporting frame 6 side, the washing water tank The cleaning water tank 5 is mounted inside the water tank 5 and is divided into two chambers, a clean liquid chamber 5a and a dirty water chamber 5b.

Further, in the present invention, the widths of the above-mentioned two holders 6b and 6c are different from each other as shown in the drawing, and further, the inner corner portions of these two holders 6b and 6c are rounded. By forming 6b1 ..., 6c1 ..., the flexible intermediate wall 7 is prevented from being damaged by bending, and at the same time, the flexible intermediate wall 7 is swollen smoothly with respect to the clean fluid chamber 5a or the dirty water chamber 5b. It is structured.

That is, according to the mounting structure of the flexible intermediate wall in the floor washer having the above-described configuration, the supply and water supply of the clean liquid CW to the clean liquid chamber 5a and the waste water chamber 5b. The flexible intermediate wall 7 that repeatedly swells relative to the clean liquid chamber 5a and the dirty water chamber 5b in accordance with the collection and drainage of the dirty water DW has a width of the holder 6b on the front surface side as shown in the drawing. When it is made wider than the width of 6c, when it bulges toward the clean liquid chamber 5a side, the portion indicated by reference numeral 7S in FIG. 5 becomes a bent portion, and it bulges toward the dirty water chamber 5b side. At the same time, the portion indicated by reference numeral 7T in FIG. 5 is a bent portion, and the bending points are different from each other. Therefore, as shown in the conventional example shown in FIG. 6, the bending to both sides is repeated at the same point EH. The life of the flexible intermediate wall 7 is made 5 to 7 times longer than that of the conventional device. And made possible.

Further, according to the present invention, the flexible intermediate wall 7 is formed in such a manner that the inner corner portions of the front and back holders 6b and 6c formed in a rectangular window frame shape are formed on the rounded surfaces 6b1 ..., 6c1. When the liquid swells toward the clean liquid chamber 5a or the dirty water chamber 5b, the flexible intermediate wall 7 is sandwiched between the inner corners formed at right angles to give resistance to the swelling, or the flexible intermediate wall 7 The curved surfaces 6b1 ..., 6c1 .. smoothly guide the swelling to both chambers 5a, 5b without the risk of being caught and hurt, and the volumes of both chambers 5a, 5b can be smoothly changed. ..

[0019]

[Effect of the device]

 As described above, according to the structure for mounting the flexible intermediate wall in the floor cleaning machine according to the present invention, the flexible intermediate wall that divides the inside of the wash water tank into the clean liquid chamber and the dirty water chamber is divided. Since the product life can be extended by protecting it from aging due to bending fatigue, it is possible to solve the problem that clean liquid and sewage mix during use, and the wash water tank was partitioned by a flexible intermediate wall. When applied to a floor cleaning machine, its practical effect is extremely high.

[Brief description of drawings]

FIG. 1 is a perspective view showing the inside of a floor washer having a flexible intermediate wall mounting structure according to the present invention.

FIG. 2 is a plan view showing a floor cleaning machine embodying the present invention with the upper case removed.

FIG. 3 is a plan sectional view showing the overall structure of the present invention.

FIG. 4 is a front view showing a holder constituting the present invention.

FIG. 5 is an enlarged plan sectional view showing a main part of the present invention.

FIG. 6 is an enlarged plan sectional view showing a main part of a conventional example.

[Explanation of symbols]

 1 Body of floor cleaning machine 4 Cleaning brush 5 Cleaning water tank 5a Clean liquid chamber 5b Sewage chamber CW Clean liquid DW Sewage 6 Support frame 6b, 6c Holder 6d Bolt 6b1, 6c 1 Corner surface 7 Flexible middle wall 7a Outside Edge 8 Water supply pump 9a Blower 10 Squeegee

Claims (2)

[Scope of utility model registration request] 1. A washing water tank mounted on a machine body is divided into two chambers by a flexible intermediate wall, and one of the chambers serves as a fresh water chamber for supplying fresh water or detergent liquid to a cleaning brush, and the other chamber. In a floor washer that was used as a sewage chamber for storing the squeegee sucked up by a squeegee, the outer edge of the flexible intermediate wall was attached to the center of the wash water tank to form a rectangular window frame. A flexible intermediate wall mounting structure in a floor cleaning machine, characterized in that it is sandwiched and fixed between two front and back holders which are shaped like a window frame and have different widths. 2. The flexibility of the floor cleaning machine according to claim 1, wherein the inside corners of the front and back holders, which are entirely formed in a rectangular window frame shape, are formed in rounded surfaces. Intermediate wall mounting structure.