JP2008295783A - Attachment/detachment device of recovery tank in vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To constantly provide a substantially uniform airtightness by preventing the weight of collected objects from causing inferior airtightness in a vacuum cleaner. <P>SOLUTION: This vacuum cleaner has such a constitution as having a carrier part in a body lower part, and a suction machine part in a body upper part, and being detachably installed with a collection tank for storing the collected objects in the lower part of the suction machine part; wherein the suction machine part 14 is vertically movably formed along a vertical frame 16 constituting a body at a part of a guide member 19 provided in the suction machine part 14, so that the suction machine part 14 is provided to approach/separate relative to the collection tank 15; the suction machine part is configured to apply its load to a mounting part of the collection tank, a stretchable pressurization means 20 is prepared for assisting approaching/separating movement of the suction machine part relative to the collection tank, one end and the other end of the pressurization means are rotationally journaled at the body and the guide member respectively to connect the body to the guide member, and an operation handle for vertically moving the guide member is attached to the pressurization means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention provides a detachable recovery tank in a vacuum cleaner having a structure in which a carriage unit is provided at the lower part of the main body and a suction unit is provided at the upper part of the main body, and a recovery tank for storing collected material is detachably attached to the lower part of the suction unit. It relates to the device.

  Industrial vacuum cleaners have a very wide range of objects to be collected corresponding to so-called garbage, and need to cope with various usage environments. Furthermore, it has a recovery tank with a structure that is exposed to the outside, and uses a material that is made of a transparent material so that the recovered material can be seen from the outside. Many are equipped. For example, Japanese Patent Application Laid-Open No. 2005-211350 discloses a high-performance vacuum cleaner equipped with a multi-cyclone suction mechanism, and the same device is equipped with a suspension-type recovery tank. The main body of the cleaner can be moved with respect to the tank, and there is an advantage that it is possible to use it without having to move the collection tank.

  However, in the vacuum cleaner having the above-described structure, when the collection tank is mounted, it must be pulled up or pushed up. In addition, when removing, it is greatly affected by the weight of the collected material in the collection tank, and in the case of a heavy weight, it is necessary to prepare to support it. The detachable mechanism that secures the collection tank to the vacuum cleaner body has been strengthened assuming that it must withstand heavy weight, which tends to increase in size, avoids complications, and considers durability issues. I must. This is because the attachment / detachment mechanism must be designed, including the specific gravity of the garbage and the amount collected. In addition, there is a problem that the load of the collection tank has an influence on the airtightness because it needs to withstand the load of the collection tank, and the heavier it becomes, the poorer the airtightness and the lower the suction force. There will be no.

JP-A-2005-211350

  The present invention has been made by paying attention to the above points, and the problem is that the weight of the recovered material does not cause a poor airtightness in the vacuum cleaner, and an almost constant airtightness is always obtained. It is. Another object of the present invention is to facilitate the attachment and detachment of the collection tank and to reduce the burden on the operator. Another object of the present invention is to make it possible to simplify the structural design by not having to consider the load of the collected material.

  In order to solve the above-mentioned problems, the present invention has a carriage part at the lower part of the main body and a suction machine part at the upper part of the main body, and a detachable mounting of a recovery tank for storing the collected material at the lower part of the suction machine part In the vacuum cleaner having the suction unit, the guide member provided in the suction unit is formed so as to be movable up and down along the vertical frame constituting the main body. An expansion / contraction type pressurizing means is prepared to assist the moving of the suction unit with respect to the recovery tank in a state where the load of the suction unit is applied to the mounting portion of the recovery tank. The other end is rotatably supported by the main body and the other end is rotatably supported by the guide member, thereby coupling the main body and the guide member and adding the handle for the operation of moving the guide member in either the up or down direction. Mounting on pressure means In which it took measures that shall have a configuration (first aspect of the present invention).

  The vacuum cleaner that is the subject of the present invention has a structure in which a trolley part is provided at the lower part of the main body, a suction machine part is provided at the upper part of the main body, and a recovery tank for storing collected materials is detachably attached to the lower part of the suction machine part. belongs to. In such a type of vacuum cleaner, the suction port faces downward, and the recovery tank to be used is a bucket type whose upper surface is open.

  In the present invention, the suction unit is provided with a guide member, the main body has a vertical frame as a constituent member, and the guide member is formed on the frame so as to be movable up and down along the frame. The suction unit is provided to be movable toward and away from the collection tank by moving up and down. Since the main body attaches the suction unit to the frame via a guide member, it needs to have sufficient strength to stably support the suction unit, but it hangs the collection tank. Since it is not necessary to lower it, it is not necessary to consider the load of the collected material unlike the structural design in the conventional machine, and the structural design can be simplified. The guide member moves along the frame as a guide rail, for example.

  In order to assist the contact and separation of the suction unit with respect to the recovery tank, that is, the contact of the suction unit with the recovery tank and the separation from the recovery tank, a telescopic pressurizing means is prepared, and one end thereof is attached to the main body. The other end is rotatably supported on the guide member. Therefore, the pressurizing means couples the main body and the guide member. The telescopic pressurizing means bears the load of the suction unit and assists the force that pushes it up or down, and provides a biasing means such as a spring having a biasing force in the extension direction. I have.

  The pressurizing means has a configuration in which the suction unit is pushed up and separated from the recovery tank by extension obliquely upward, and is attached in contact with the collection tank by pushing down the suction unit by extension obliquely downward. It is desirable that it exists (the invention according to claim 2). Such pressurizing means pushes up the guide member with its vertical component force when facing diagonally upward, and pushes down the guide member with a reverse vertical component force when facing diagonally downward. Act on. If the load on the suction unit applied to the collection tank mounting portion is sufficiently large, there is no need to depress it, and the effect of pushing up may be zero.

  As a telescopic pressurizing means, one end is pivotally supported on the main body and the guide member's support shaft is slidably disposed in the guide groove on the other end. It is desirable to have a pressurizing device that is biased (the invention according to claim 3). The link member mainly bears the bonding strength between the main body and the suction unit, and the pressurizing device provides power for moving the suction unit upward or downward. As a pressurizing device, it is desirable to use a piston-cylinder device called a so-called gas spring, or a similar device containing a spring means other than gas.

  A handle for operating the guide member to move in either the up or down direction is attached to the pressurizing means. When the pressurizing means includes the link member as described above, the handle is attached to the link member that can bear the strength. Although not shown in the drawings, a handle can be attached to the pressurizing device when the pressurizing means is composed of only the pressurizing device.

  Since the present invention is configured and operates as described above, the suction unit is provided so as to be able to contact and separate from the recovery tank in a state where the load of the suction unit is applied to the mounting portion of the recovery tank. The weight of the collected material does not cause poor airtightness in the vacuum cleaner, and almost constant airtightness is always obtained. Further, according to the present invention, the recovery tank can be lifted or removed without considering the load of the recovered material, so that the recovery tank can be easily attached and detached, and the burden on the operator can be reduced. In addition, according to the present invention, it is not necessary to consider the load of the collected material, thereby simplifying the structural design.

  Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. FIG. 1 shows a vacuum cleaner 10 to which a recovery tank attaching / detaching device according to the present invention is applied. The vacuum cleaner 10 is provided at the lower part of a main body 11 at a lower part of a main body 11 and a carriage unit comprising front and rear wheels 12, 13. The suction unit 14 has a configuration in which a collection tank 15 for storing the collected material is detachably attached to the lower part of the suction unit 14.

  The illustrated main body 11 has a frame-like structure that substantially surrounds the left and right sides, the back surface, and the bottom of the suction unit 14 and the recovery tank 15, and includes substantially vertical frames 16 that are positioned on the left and right sides of the suction unit 14 and the recovery tank 15. Have. The illustrated main body 11 includes a mounting plate 17 on which a recovery tank is mounted at the bottom, and when the recovery tank 15 is pushed into the mounting plate 17 from the opened front portion 17a, Standing portions 17b, 17c and 17d are provided as positioning means for receiving the collection tank 15 at the rear three sides and arranged at a fixed position below the suction unit 14 (see FIGS. 2 and 4).

  The suction unit 14 has support portions 18 on both the left and right sides, and guide members 19 are provided on the support portions 18 respectively. The guide member 19 has a substantially U-shaped cross-sectional shape that surrounds the outside of the frame 16, holds the frame 16 in the vertical direction between the guide member 19, and moves up and down along the frame 16. It is possible to form. By this vertical movement, the suction unit 14 is provided so as to be able to contact and separate from the collection tank 15 (see FIGS. 3 and 4). In addition, since the main body 11 should just be designed so that it may have the intensity | strength which can support the suction machine part 14 stably, structural design is simplified.

  The suction unit 14 is moved downward to come into contact with the opening edge of the recovery tank 15 and the movement of the suction unit from the recovery tank 15 upward and away from the opening edge is assisted. For this purpose, a telescopic pressurizing means 20 is prepared. The illustrated pressurizing means 20 pushes up the suction unit 14 by being extended obliquely upward to be separated from the collection tank 15, and pushes down the suction unit 14 by being extended obliquely downward to contact the edge of the collection tank 15. It is attached to become.

  The illustrated telescopic pressurizing means 20 is rotatably supported on the main body side mounting plate 11a by a shaft 21a on one end side, and the connecting support shaft 23 with the guide member 19 is slid on the guide groove 22 on the other end. A link member 24 that is movably arranged and mainly bears the coupling strength between the main body and the suction unit, and a pressurizing device 25 that couples the main body 11 and the guide member 19 and is constantly urged in the pressurizing / extending direction. It is configured. The pressurizing device 25 provides power to push the suction unit 14 upward or downward, and in the illustrated case, a piston-cylinder device called a gas spring is used. The pressurizing device 25 is rotatably supported on the main body 11 by a shaft 21b at one end.

  A handle 26 is attached to the link member 24 of the pressurizing means 20 for the operation of moving the guide member 19 in both the up and down directions. In the illustrated example, the handle 26 is designed to approach the upper frame 27 of the main body when attached to the connecting support in front of the link member 24 and to move downward in the rear part when the suction unit 14 is separated from the collection tank 15. ing. In each figure, 28 indicates a handle of the recovery tank, 29 indicates a connection port of the suction nozzle, and the illustrated suction unit 14 is provided with a multiple cyclone suction mechanism.

  In the apparatus 10 of the present invention having such a configuration, in the state where the suction unit 14 shown in FIG. 6A is connected to the recovery tank 15, the rim portion 15 a where the load of the suction unit 14 opens above the recovery tank 15. As shown in FIG. 5, the sealing member 31 provided at the edge of the cyclone 30 obtains airtightness at the connection portion. That is, in the case of the present invention, the airtightness is maintained by the load by the suction unit 14, the reverse vertical component force by the pressurizing device 25 facing obliquely downward, and the internal negative pressure that pushes down the guide member 19. Be drunk. Therefore, it is not necessary to couple the suction unit 14 and the collection tank 15 with a buckle or the like.

  On the other hand, when the recovery tank 15 is taken out, as shown in FIG. 6B, the pressing means 20 is extended and rotated and rotated obliquely upward by pushing down the handle 26, and the guide member 19 is driven by the vertical component force of the pressurizing device 25. Therefore, the suction unit 14 can be raised with a light operating force. Thus, the suction unit 14 is sufficiently separated from the collection tank 15, and the collection tank 15 can be easily pulled out from the mounting plate 17 to the front.

The side view which shows an example of the attachment or detachment apparatus of the collection tank in the vacuum cleaner which concerns on this invention. The top view which shows an apparatus same as the above. Similarly the principal part enlarged view. Similarly, an enlarged plan view. Similarly side enlarged view. The operation | movement of this invention apparatus is shown, A is a connection state of a suction unit and a collection tank, B is explanatory drawing which shows the separation state of a suction unit and a collection tank.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vacuum cleaner 11 Main body 12, 13 Wheel 14 Suction machine part 15 Recovery tank 16 Frame 17 Mounting plate 18 Support part 19 Guide member 20 Pressurizing means 21a, 21b Shaft 22 Guide groove 23 Connection support shaft 24 Link member 25 Pressurization Instrument 26 Handle 27 Main frame upper part 28 Handle 29 Nozzle connection port 30 Cyclone

Claims (3)

In a vacuum cleaner having a structure in which a carriage unit is provided at the lower part of the main body, a suction machine part is provided at the upper part of the main body, and a collection tank for storing the collected material is detachably attached to the lower part of the suction unit.
A suction unit is provided so as to be able to move up and down along a vertical frame constituting the main body at a guide member portion provided in the suction unit, so that the suction unit can be brought into and out of contact with the recovery tank. As a state in which the load of the part is applied to the mounting part of the recovery tank, an expansion / contraction type pressurizing means is prepared to assist the contact / separation movement of the suction unit with respect to the recovery tank. A structure in which the main body and the guide member are coupled to each other by pivotally supporting the end on the guide member, and a handle for operating the guide member to move in either the up or down direction is attached to the pressurizing unit. A collection tank attachment / detachment device. The pressurizing means has a configuration in which the suction unit is pushed up and separated from the collection tank by extending obliquely upward, and attached so as to contact the collection tank by pushing down the suction unit and extending obliquely downward. 2. A recovery tank attachment / detachment device in the vacuum cleaner according to 1. The telescoping pressurizing means combines one end with a main body and a guide member, and pressurizes the main body and the guide member, with one end pivotally supported on the main body and the guide shaft at the other end slidably disposed. The apparatus for attaching and detaching a recovery tank in a vacuum cleaner according to claim 1, further comprising a pressurizing device that is constantly biased in the direction.

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