KR102599780B1 - Transfer Car for cleaning - Google Patents

Abstract

This embodiment is a transfer truck for collecting foreign substances accumulated on the floor of a clean room, including a truck having wheels; collection unit; and a close contact part disposed between the cart and the collection unit to bring the collection unit into close contact with the floor of the clean room, wherein the collection unit adheres to and collects the foreign matter. Accordingly, foreign substances accumulated on the clean room floor can be collected while transporting raw materials, materials, or parts.

Description

Transfer Car {Transfer Car for cleaning}

The embodiment relates to a transfer truck used in a clean room.

In general, a clean room is a room where airborne particles, air temperature and humidity, and indoor pressure are controlled to remain constant. Here, clean rooms are divided into industrial and medical (bio-clean rooms). The industrial room is mainly used for manufacturing electronic and precision equipment, and the medical room is used in operating rooms, etc., where control of biological particles is regulated in addition to control conditions.

Accordingly, clean rooms have very little fine floating dust and require high level of management because the cleanliness required for the room must be maintained at all times.

Accordingly, a vacuum cleaner can be used as a cleaner to collect foreign substances (dust, etc.) in a clean room. However, since these vacuum cleaners use a HEPA filter with a high filtration rate, they have poor ventilation and the motor easily heats up even when operated for only a short period of time, making it impossible to operate in places with a lot of dust or for long periods of time.

Moreover, since the vacuum cleaner used in clean rooms is often used as a vacuum suction source, there is a problem of forming air flow and generating floating dust. As a result, the defect rate of the product increases.

Furthermore, since it uses a motor as a power source, noise is generated, and as a result, there is a problem that the clean room site is exposed to noise.

Therefore, as the number of clean room sites increases due to the diversification of the industry, there is a demand for clean room cleaners that can operate for a long time without floating dust.

We provide a transport truck that collects foreign substances accumulated on the clean room floor while transporting raw materials, materials, or parts.

In addition, a transfer truck is provided that collects foreign substances accumulated on the clean room floor by sticking them only by moving the truck without any separate driving power.

The problems to be solved by the embodiment are not limited to the problems mentioned above, and other problems not mentioned here will be clearly understood by those skilled in the art from the description below.

According to an embodiment of the present invention, the above problem includes: a transport cart for collecting foreign substances accumulated on the floor of a clean room; a cart having wheels; collection unit; and a close contact part disposed between the cart and the collection unit to bring the collection unit into close contact with the floor of the clean room, wherein the collection unit is achieved by a transfer cart that collects the foreign matter by adhering to it.

Preferably, the transport cart is provided with at least two collecting units, and one of the collecting units may be disposed in front of the wheel based on the moving direction of the cart.

Here, the collecting part includes a bracket disposed on one side of the close contact part; A roller detachably disposed on the bracket; An adhesive member disposed on the outer peripheral surface of the roller; And it may include a detachable part disposed on the bracket and supporting one side of the roller.

And, the detachable part includes a frame disposed through one side of the bracket; Flanges disposed at both ends of the frame; and an elastic member disposed on the outer peripheral surface of the frame, where one side of the elastic member may be supported by the bracket and the other side may be supported by the flange.

Additionally, the adhesive member may be provided as an adhesive tape.

In addition, the adhesive tape's ground pressing force due to the close contact portion may be 700 to 1500 g.

Additionally, the close contact portion includes a close contact plate; a first coupling plate extending on one side of the contact plate; and a second coupling plate extending from the other side of the contact plate, wherein the contact plate may be provided as a plate-shaped member having a predetermined curvature.

And, it further includes a guide disposed between the cart and the close contact portion, and the close contact portion may be disposed on the guide to be movable along the longitudinal direction of the guide.

And, the guide includes: a guide body detachably disposed on the bogie; a guide groove formed in the guide body in the longitudinal direction of the guide body; And it may include a guide plate movably disposed in the guide groove.

In addition, the guide may further include a first fixing member for fixing the guide plate to the guide body after the guide plate is moved.

Additionally, the first coupling plate of the close contact portion may be detachably disposed on the guide plate.

Meanwhile, the second coupling plate of the close contact part may be detachably disposed in the collection part.

The transfer truck according to an embodiment of the present invention having the above configuration can collect foreign substances accumulated on the clean room floor while transferring raw materials, materials, or parts.

In other words, since foreign substances are removed in real time along with the transfer of parts, etc., it is easy to manage foreign substances on site. Accordingly, labor costs according to the allocation of floor cleaning personnel can be reduced.

In addition, since the transfer cart is equipped with an adhesive roller to collect foreign substances, it is possible to remove foreign substances accumulated on the floor without forming floating foreign substances.

In addition, the transfer cart is equipped with an adhesive roller to prevent foreign substances from attaching to the wheels and at the same time remove them immediately to prevent foreign substances from being transferred to other areas through the wheels.

1 is a perspective view showing a transfer truck according to an embodiment,
Figure 2 is a diagram showing a collection part, a close contact part, and a guide of a transfer cart according to an embodiment;
Figure 3 is an exploded perspective view of the collection unit, adhesion unit, and guide provided on the transfer cart according to the embodiment;
Figure 4 is a side view showing the collection part, contact part, and guide of the transfer cart according to the embodiment;
Figure 5 is a diagram showing the attachment and detachment of the roller of the transfer cart according to the embodiment;
Figure 6 is a diagram showing a process of removing an adhesive tape with foreign substances attached to it on a transfer truck according to an embodiment.

Since the present invention can be subject to various changes and can have various embodiments, specific embodiments will be illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms containing ordinal numbers, such as second, first, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, the second component may be referred to as the first component without departing from the scope of the present invention, and similarly, the first component may also be referred to as the second component. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

In the description of the embodiment, in the case where one component is described as being formed “on or under” another component, (on or under) includes both components that are in direct contact with each other or one or more other components that are formed (indirectly) between the two components. Additionally, when expressed as 'on or under', it can include not only the upward direction but also the downward direction based on one component.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Hereinafter, embodiments will be described in detail with reference to the attached drawings, but identical or corresponding components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted.

The transfer truck 1 according to the embodiment can collect foreign substances accumulated on the clean room floor while transferring raw materials, materials, or parts.

1 to 6, the transfer cart 1 according to the embodiment is disposed on one side of the cart 100, the guide 200, the close contact portion 300, and the close contact portion 300 to collect foreign substances. It may include a collection unit 400.

The cart 100 can form the outer shape of the transfer cart 1. Additionally, wheels 110 may be placed on the lower side of the bogie 100 for movement. And, the wheels 110 can be divided into front wheels 111 and rear wheels 112 based on the moving direction of the bogie 100.

Additionally, a shelf 120 may be placed on the cart 100 to transport raw materials, materials, or parts.

The guide 200 may be detachably disposed on the bogie 100. And, as shown in FIG. 2, a close contact portion 300 may be placed on the guide 200 to be movable along the longitudinal direction of the guide 200.

The guide 200 may include a guide body 210, a guide groove 220 formed in the longitudinal direction of the guide body 210, and a guide plate 230.

The guide body 210 may be formed in a rod shape with a predetermined length. Additionally, the guide body 210 may be detachably disposed on the bogie 100.

The guide groove 220 may be formed in the guide body 210 along the longitudinal direction of the guide body 210. Additionally, the guide plate 230 may be movably disposed in the guide groove 220. Accordingly, as shown in FIG. 2, the guide plate 230 may be guided by the guide groove 220 and then fixed to the guide body 210 by the first fixing member 10 such as a bolt.

Additionally, a close contact portion 300 may be detachably disposed on the guide plate 230.

Meanwhile, the guide 200 is disposed between the cart 100 and the close contact portion 300 as an example, but is not necessarily limited thereto. For example, in the transfer cart 1, the close contact portion 300 may be directly attached to and detachable from the cart 100 without the guide 200.

The close contact part 300 is disposed between the guide plate 230 and the collecting part 400 to bring the collecting part 400 into close contact with the floor. Additionally, one side of the close contact portion 300 may be detachably disposed on the guide plate 230 by a second fixing member 20 such as a bolt. Additionally, the other side of the close contact portion 300 may be detachably disposed on the collection portion 400.

If the transfer cart 1 does not have a guide 200, the close contact part 300 may be detachably disposed between the cart 100 and the collection unit 400.

The close contact portion 300 may be provided as a plate-shaped member, as shown in FIGS. 2 to 4 .

The close contact portion 300 may include a close contact plate 310, a first coupling plate 320, and a second coupling plate 330. Here, the contact plate 310, the first coupling plate 320, and the second coupling plate 330 may be formed as one body.

As shown in FIG. 4, the angle θ formed by the contact plate 310 with the ground may be within 45 degrees. The angle θ determines the ground pressing force of the collection unit 400 by the close contact part 300, and the close contact plate 310 can be formed with the angle θ within 45 degrees. At this time, the angle θ may be 30 to 45 degrees.

For example, if the angle θ exceeds 45 degrees, the adhesion to the ground decreases, and thus the efficiency of removing foreign substances decreases. In addition, when the angle θ is less than 30 degrees, the adhesion to the ground increases, causing interference in changing the direction of the transfer truck 1.

The contact plate 310 may be provided as a plate-shaped member having a predetermined curvature (r) based on the virtual point (C).

Accordingly, the contact plate 310 may function as a leaf spring in which the contact portion 300 brings the collection unit 400 into close contact with the floor. Accordingly, the close contact part 300 can minimize the shaking of the cart 100 by mitigating the impact when bulky foreign substances are attached to the collection part 400.

The first coupling plate 320 is disposed on one side of the contact plate 310 and can be detachably disposed on the guide plate 230 by a second fixing member 20 such as a bolt. At this time, the first coupling plate 320 may extend from one side of the contact plate 310.

The second coupling plate 330 is disposed on the other side of the contact plate 310, and can be detachably disposed on the collection unit 400 by a third fixing member 30 such as a bolt. At this time, the second coupling plate 330 may extend from the other side of the contact plate 310.

The collection unit 400 is in close contact with the floor by the adhesion unit 300 and can collect foreign substances accumulated on the clean room floor by adhering to them.

At least two collection units 400 may be disposed on the cart 100. And, the collection unit may be disposed at the front and rear of the bogie 100.

For example, the collection unit 400 disposed in front of the front wheel 111 can prevent the front wheel 111 from being contaminated by collecting foreign substances located in the front of the bogie 100 in advance. Accordingly, it is possible to prevent foreign substances from sticking to the wheel 110 and being transferred to other areas.

In addition, the collection unit 400 disposed behind the rear wheel 112 can immediately remove foreign substances falling from the bogie 100 when transferring raw materials, etc.

2 and 3, the collection unit 400 includes a bracket 410 connected to the close contact unit 300, a roller 420 detachably disposed on the bracket 410, and an outer peripheral surface of the roller 420. It may include an adhesive member 430 disposed in and a detachable part 440 supporting one side of the roller 420.

The bracket 410 may be formed in a U-shape, as shown in FIG. 3 . In addition, the second coupling plate 330 of the close contact portion 300 may be detachably disposed on one side of the bracket 410.

Here, the width and length (d1) of the bracket 410 may be formed to be 1.5 times the length (d2) of the close contact portion 300. Accordingly, shaking of the cart 100 due to rattling when a bulky foreign substance is attached to the roller 420 can be minimized.

The roller 420 may be detachably disposed on the bracket 410. Additionally, the roller 420 may be rotatably disposed on the bracket 410. Therefore, as the cart 100 moves, the roller 420 rotates. Additionally, the adhesive member 430 disposed on the outer peripheral surface of the roller 420 adheres and collects foreign substances on the floor.

Figure 5 is a diagram showing the installation process of the roller of the transfer cart according to the embodiment. Figure 5 (a) is a diagram showing the roller supported by the detachable part and installed on the bracket, and Figure 5 (b) is a diagram showing the detachment This is a diagram showing the roller being removed from the bracket as the unit is spaced apart.

As shown in (a) of FIG. 5, the roller 420 may be placed on the bracket 410 by the elastic force of the detachable part 440. And, as shown in (a) of FIG. 5, the roller 420 can be easily removed as the detachable part 440 releases support.

The adhesive member 430 may be disposed on the outer peripheral surface of the roller 420. And, as the roller 420 rotates due to the movement of the cart 100, foreign substances on the floor can be adhered.

Here, an adhesive tape may be provided as the adhesive member 430. At this time, the pressure of the adhesive tape on the ground by the close contact portion 300 may be 700 to 1500 g.

For example, when the adhesive tape has a pressing force against the ground of less than 700 g, the adhesion to the ground decreases, and thus the efficiency of removing foreign substances by the adhesive member 430 decreases. In addition, when the adhesive tape's pressing force against the ground exceeds 1500 g, the adhesion to the ground increases, so the adhesive tape interferes with the change of direction of the transfer truck 1.

When foreign substances no longer adhere to the adhesive tape, the adhesive tape can be removed from the roller 420. For example, as shown in FIG. 6, the transfer truck 1 can continuously collect foreign substances by removing a part of the adhesive tape to which foreign substances are adhered along the cut line or groove formed in the adhesive tape.

The detachable portion 440 elastically supports one side of the roller 420 to facilitate detachment of the roller 420.

Referring to FIG. 3, the detachable portion 440 includes a frame 441 disposed through one side of the bracket 410, a flange 442 disposed at both ends of the frame 441, and an outer peripheral surface of the frame 441. It may include an elastic member 443 disposed in.

The frame 441 may be formed in a cylindrical shape. And, the frame 441 may be disposed to penetrate one side of the bracket 410, as shown in FIGS. 3 and 4 .

Flanges 442 may be disposed at both ends of the frame 441, respectively. Also, since the diameter of the flange 442 is formed to be larger than the diameter of the frame 441, the flange 442 can support the elastic member 443.

The elastic member 443 allows one side of the flange 442 to come into close contact with one side of the roller 420, as shown in (a) of FIG. 5.

The elastic member 443 may be provided as a spring and may be disposed on the outer peripheral surface of the frame 441.

Therefore, as shown in FIG. 5, one side of the elastic member 443 may be supported by the bracket 410 and the other side may be supported by the flange 442. Accordingly, the elastic member 443 allows the flange 442 to elastically support one side of the roller 420.

Meanwhile, the transfer cart 1 may be arranged so that the collection part 400 protrudes beyond the width of the cart 100. However, since the close contact portion 300 is installed to be movable in the width direction of the cart 100 when moving in a narrow passage, the arrangement position of the collection portion 400 can be adjusted to facilitate movement of the cart 100.

In addition, when moving in a curved section, it may be difficult to adjust the direction of the cart 100 due to the roller 420 of the collection unit 400, and the transfer cart 1 attaches the close contact portion 300 to the cart 100. By moving it toward the center of the width, it is possible to advantageously change the direction of the cart 100 according to the close contact of the collection unit 400.

That is, since the transfer truck 1 is installed to be movable in the width direction, it is advantageous for driving interference and direction changes.

Although the present invention has been described above with reference to embodiments, those skilled in the art can make various modifications and modifications to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that you can change it. And, the differences related to these modifications and changes should be construed as being included in the scope of the present invention as defined in the appended claims.

1: Transfer truck
100: bogie 110: wheel
200: Guide 210: Guide body
220: guide phone 230: guide plate
300: Close contact part 310: Close contact plate
320: first coupling plate 330: second coupling plate
400: collection unit 410: bracket
420: Roller 430: Adhesive member
440: Removable part 443: Elastic member

Claims (12)

In the transfer truck that collects foreign substances accumulated on the floor of the clean room,
A bogie having wheels;
collection unit; and
It includes a close contact part disposed between the cart and the collecting part to bring the collecting part into close contact with the floor of the clean room,
The collection unit adheres and collects the foreign matter,
The close contact part,
contact plate;
a first coupling plate extending on one side of the contact plate; and
It includes a second coupling plate extending from the other side of the contact plate,
The contact plate is a transfer cart provided as a plate-shaped member with a predetermined curvature. According to paragraph 1,
A transfer cart having at least two collection units, wherein one of the collection units is disposed in front of the wheels based on the moving direction of the trolley. According to paragraph 2,
The collection unit,
a bracket disposed on one side of the close contact portion;
A roller detachably disposed on the bracket;
An adhesive member disposed on the outer peripheral surface of the roller; and
A transfer truck including a detachable part disposed on the bracket and supporting one side of the roller. According to paragraph 3,
The detachable part,
A frame disposed through one side of the bracket;
Flanges disposed at both ends of the frame; and
It includes an elastic member disposed on the outer peripheral surface of the frame,
A transfer cart in which one side of the elastic member is supported by the bracket and the other side is supported by the flange. According to paragraph 3,
The adhesive member is a transfer truck provided with adhesive tape. According to clause 5,
The transfer truck has a ground pressing force of the adhesive tape due to the close contact portion of 700 to 1500 g. delete According to paragraph 1,
Further comprising a guide disposed between the bogie and the close contact portion,
The close contact portion is a transfer cart disposed on the guide to be movable along the longitudinal direction of the guide. According to clause 8,
The guide is:
a guide body detachably disposed on the bogie;
a guide groove formed in the guide body in the longitudinal direction of the guide body; and
A transfer truck including a guide plate movably disposed in the guide groove. According to clause 9,
The guide further includes a first fixing member for fixing the guide plate to the guide body after movement of the guide plate. According to clause 10,
The first coupling plate of the close contact portion is a transfer trolley in which the first coupling plate is detachably disposed on the guide plate. According to paragraph 1,
The second coupling plate of the close contact portion is a transfer cart in which the second coupling plate is detachably disposed on the collection portion.

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