JP6074598B2 - Vacuum cleaner suction tool - Google Patents

Description

  The present invention relates to a vacuum cleaner suction tool and a vacuum cleaner using the same.

Conventionally, in order for this type of vacuum cleaner suction tool to prevent the floor surface from being damaged, a roller is provided so that the floor under the suction port does not contact the floor surface. Alternatively, a lip body composed of a brush or a rubber body is provided after the suction port so that the floor below is not installed on the floor surface (see, for example, Patent Document 1). In addition, there is a structure in which a lip body composed of a brush or a rubber body is formed before and after the suction port. (For example, see Patent Document 2)
FIG. 7 shows a conventional suction tool described in Patent Document 1. As shown in FIG. As shown in FIG. 7, the suction tool 101 includes a suction port 102, a moving roller 103, a movable brush 104 behind the suction port 102, an underfloor 106 having a fixed lip 105, and a floor covering the underfloor 106. 107, and a pipe 108 rotatably held by an underfloor 106 and an upper floor 107.

  FIG. 8 shows a conventional suction tool described in Patent Document 2. As shown in FIG. As shown in FIG. 8, brushes 104 are formed before and after the suction port 102.

Japanese Utility Model Publication No. 63-048550 JP 60-122530 A

  However, in the above-described conventional configuration, the suction tool 101 can be operated back and forth without the bottom surface of the floor 106 being in contact with the floor surface by the moving roller 103, but the bottom surface of the floor floor 106 is at a certain distance from the floor surface. It is configured to keep. The suction tool 101 sucks dust on the floor surface from the suction port 102. In order to suck the dust, it is more efficient to increase the negative pressure generated by the cleaner body near the suction port 102. Although suction can be performed, providing a gap between the floor and the floor as described above has a problem that the pressure in the vicinity of the suction port 102 drops, and as a result, dust cannot be efficiently sucked.

  In addition, some have a lip 105 such as a brush 104 or a rubber body in front and rear of the suction port, and there is an effect of increasing the pressure of the suction port 102 by bringing the brush 104 and lip 105 into contact with the floor surface. However, when the brush 104 and the lip 105 are disposed behind the suction port 102, when the suction tool 101 is operated rearward, the dust on the floor surface is pushed by the brush 104, the lip 105, etc. There was also a problem that could not be sucked from 102.

  The present invention solves the above-mentioned conventional problems, prevents the floor surface from being damaged by the bottom surface under the floor, prevents the dust from being pushed and sucked by the brush, lip, etc. provided under the floor, and is more efficient. An object of the present invention is to provide a vacuum cleaner suction tool that can suck dust on the floor surface and has improved performance and usability.

In order to solve the above-described conventional problems, the suction tool of the vacuum cleaner of the present invention is rotatably held by the floor under the floor having a suction port for sucking dust, the floor covering the floor, and the floor and floor. In the suction tool having a pipe, the suction tool can be moved up and down in accordance with the detection of the detection body that detects the forward and backward movement of the suction tool, and is disposed at the front and rear of the suction port, respectively. The moving body is provided in front of and behind the moving body, and the detecting body is composed of a detecting portion whose one end is in contact with the floor and an operating portion at one end, and has a rotating shaft between the detecting portion and the operating portion. Is configured to move up and down in front of and after the moving body, respectively, and a floor grounding portion that can move up and down before and after the moving body, a rotatable center axis, and a center axis extending from the center axis. Arm part connected to the floor grounding part, almost opposite to the arm part from the central axis The connecting body is composed of a rib body extending in the direction, and either the floor grounding portion or the connecting body is configured by urging the moving body before and after the moving body upward by a spring body or the like. Therefore, by moving the rib body of the connecting body by the operation unit of the detection body, the structure is configured to move the moving body before and after the moving body in the floor surface direction, and before the moving body and after the moving body, The forward and backward movements are detected by the detector, and when the suction tool moves forward, the moving body moves upward, after the moving body moves downward, and when the suction tool moves backward, the moving body moves downward. It is configured to move upward after the moving body and when the moving body moves downward before and after the moving body, the bottom surface before the moving body or the bottom surface of the floor grounding part after the moving body is the floor. It is configured to contact the surface.

As a result, either the front or rear of the suction port is always in contact with the floor surface, so that the pressure around the suction port can be increased and more dust on the floor surface can be sucked. Can be sucked more effectively and the performance can be improved. In addition, when the suction tool moves forward, the moving body behind the suction port comes into contact with the floor surface, so that it is possible to prevent the moving body from pushing dust and not being sucked from the suction port, thereby improving usability. Moreover, the suction tool of the vacuum cleaner which can become the reverse of the movement to the front at the time of a back movement, and can perform the same usability improvement can be provided.
In addition, the rib body of the connecting body is moved by the operation unit of the detection body, so that the front of the moving body and the back of the moving body are moved in the floor surface direction. Operation can be provided at low cost.

  The suction tool of the present invention can improve the performance by preventing the floor surface from being damaged and improving the usability and more efficiently sucking the dust on the floor surface.

Overview of the electric vacuum cleaner according to Embodiment 1 of the present invention The perspective view of the suction tool in Embodiment 1 of this invention Overview of the bottom surface of the suction tool according to Embodiment 1 of the present invention Sectional drawing of the suction tool in Embodiment 1 of this invention (A) in Embodiment 1 of this invention is sectional drawing at the time of the movement of a suction tool ahead, (b) is sectional drawing at the time of the movement of a suction tool to the back (A) in Embodiment 2 of this invention is sectional drawing at the time of the movement of a suction tool forward, (b) is sectional drawing at the time of the movement of a suction tool to the back Cross-sectional view of a conventional suction tool Overview of conventional suction tool bottom

According to a first aspect of the present invention, in order to solve the above-described conventional problems, the suction tool of the vacuum cleaner of the present invention is rotated under the floor having a suction port for sucking dust, the floor covering the floor, the floor and the floor. In a suction tool having a pipe that is movably held, the suction tool can be moved up and down in accordance with detection of the detection body that detects the movement of the front and rear of the suction tool, and in front of the suction port. And the rear of the moving body respectively disposed on the rear side, and the detecting body is composed of a detecting portion whose one end is in contact with the floor and an operating portion at one end, and a rotating shaft is provided between the detecting portion and the operating portion. It is configured to move up and down in front of and after the moving body by the operation unit, and a floor grounding portion that can move up and down before and after the moving body, and a rotatable central shaft And an arm portion extending from the central axis and connected to the floor grounding portion, and an arm portion extending from the central axis. The connecting body is composed of a rib body extending in a direction substantially opposite to the center portion, and either the floor grounding section or the connecting body is moved upwardly by the spring body etc. before the moving body and after the moving body. It is configured to be biased, and it is configured to move the moving body before and after the moving body in the floor surface direction by moving the rib body of the connecting body by the operation unit of the detecting body, and before the moving body and after the moving body Detects the forward and backward movement of the suction tool by the detector, and moves forward when the suction tool moves forward, moves downward after the moving body, and moves when the suction tool moves backward. It is configured to move downward in front of the body and upward after the moving body. When the front of the moving body and the back of the moving body move downward, respectively, the bottom surface before the moving body or the floor surface after the moving body is grounded. It is comprised so that the bottom face of a part may contact | connect a floor surface.

When either the front or rear of the suction port is always in contact with the floor surface, it is possible to increase the pressure around the suction port and suck more dust on the floor surface. Can be suctioned and performance can be improved. In addition, when the suction tool moves forward, the moving body behind the suction port comes into contact with the floor surface, so that it is possible to prevent the moving body from pushing dust and not being sucked from the suction port, thereby improving usability. Further, when moving backward, it becomes the reverse of the forward movement and the same usability improvement can be achieved.
In addition, the rib body of the connecting body is moved by the operation unit of the detection body, so that the front of the moving body and the back of the moving body are moved in the floor surface direction. Operation can be provided at low cost.

Further, the second invention of the present invention is the first invention in particular, wherein the bottom surface of the floor grounding portion before the moving body and after the moving body is composed of a rubber body, a brush, a cloth-like soft body, etc. By constituting the bottom surface in contact with the floor surface with a soft body, it is possible to prevent the floor surface from being damaged while increasing the pressure of the suction port, and further improve the usability.

The third aspect of the present invention is the first or second aspect of the invention, in which the detection part of the detection body is composed of a rubber body, a brush, a cloth-like soft body, etc. By constructing the detection unit for detecting the movement of the implement with a soft body, it is possible to prevent the floor surface from being damaged and to further improve the usability.

Further, the fourth invention of the present invention, in the first to third inventions, is preferably configured so that the front of the moving body and the rear of the moving body are substantially the same as the width of the suction port, and the pressure at both ends of the suction port. It is possible to increase the pressure even in a portion where it is difficult to add, so that more dust can be sucked and the performance can be further improved.

Further, the fifth invention of the present invention is the first to fourth inventions, in particular, the floor grounding portion bottom surface is configured to be close to the floor surface when moving downward before the moving body and after the moving body, and The distance from the floor is set to 1 mm or less, and even when the moving body moves downward before and after the moving body, the bottom surface of the moving body and the floor surface are not brought into contact with each other with a gap of 1 mm or less. Since the pressure in the vicinity of the suction port is increased and the flow of wind is not blocked, dust can be sucked more effectively.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a schematic view of a vacuum cleaner according to a first embodiment of the present invention, FIG. 2 is a perspective view of a suction tool, FIG. 3 is a cross-sectional view of the bottom of the suction tool, FIG. 4 is a cross-sectional view of the suction tool, and FIG. 5 (a) is a sectional view when the suction tool is moved forward, and (b) is a sectional view when the suction tool is moved backward.

  In FIG. 1, 1 is an electric vacuum cleaner main body incorporating an electric blower (not shown) for generating suction air, and is connected to the electric vacuum cleaner main body 1 and has a hose 3 having a handle 2 operated by a user, The extension pipe 4 connected to the handle 2 and the suction tool 5 are connected to the opposite side of the extension pipe 4 to which the handle 2 is connected.

  2, 3, and 4, the suction tool 5 includes a floor 7 that forms the suction port 6, a floor 8 that covers the floor 7 from above, a pipe 9 that is rotatably held by the floor 7 and the floor 8, and is rotatable. The moving roller 10 held in the upper part is constituted.

  Next, the movable body 11 that is movable up and down to the floor 7 and configured in front of the suction port 6, and the movable body that is movable up and down to the floor 7 and configured in front of the suction port 6 The rear 12 and the detector 13 that is rotatably attached are configured.

  In addition, for example, a brush may be used for the movable bodies 11 and 12, or an elastic body such as a cloth member or rubber may be used. It is preferable that the moving body front 11 and the moving body rear 12 are constituted by brushes because they have an effect of collecting dust or the like when moving the suction tool 5 and an effect of not damaging the floor surface at that time.

  Next, in FIG. 5, the detection body 13 includes a detection unit 14 having one end in contact with the floor, an operation unit 15 having one end and a rotation unit 16 between the detection unit 14 and the operation unit 15. Further, the front 11 of the moving body and the rear 12 of the moving body extend from the floor grounding body 17 which can move up and down, the rotatable central shaft 18 and the central shaft 18, and the arm 19 and the center connected to the floor grounding body 17. It is comprised from the connection body comprised from the rib body 20 extended in the direction substantially opposite to the arm part 19 from the axis | shaft 18, and the moving body front 11 of the arm part 19 of a connection body, and 12 parts after moving body by the spring body Is biased upward.

  About the suction tool of the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, as shown in FIG. 4, the suction port 6 is connected to a suction passage 22 constituted by a floor 7, a floor 8, and a pipe. The suction passage 22 passes through the extension pipe 4, the handle 2, and the hose 3 shown in FIG. 1 connected. Thereby, the suction air generated by the electric blower is transmitted to the suction port 6 of the suction tool 5. The dust on the floor surface is sucked up to the suction port 6 by the force of this suction air and the negative pressure generated by the suction air passing between the under floor 7 and the floor surface.

  Next, as shown in FIG. 5, FIG. 5A is a diagram when the suction tool 5 is moved forward, and FIG. 5B is a diagram when the suction tool 5 is moved backward. The operation will be described with reference to FIG. 5A. When the suction tool 5 moves forward, the detection unit 14 that is in contact with the floor becomes a resistance and rotates backward about the rotation unit 16. As a result, the operation unit 15 is rotated forward to push up the rib body 20 of the connecting body. When the rib body 20 is pushed up by the operation portion 15, the arm portion 19 of the coupling body rotates about the central axis 18 and rotates downward. By the downward movement of the arm part 19, the floor grounding body 17 after the moving body connected to the arm part 19 moves downward, and the bottom surface of the floor grounding body 17 is grounded to the floor surface.

FIG. 5B is a diagram when the suction tool has moved rearward, and the interlocking of the operation of each part is the same as the operation of moving to the front described above, but the floor grounding body in front of the moving body 11 The bottom surface of 17 is grounded to the floor surface. With this configuration, in FIG. 5 (a), when the suction tool 5 moves forward, the rear 12 of the moving body behind the suction port 6 is grounded to the floor surface, so that the underfloor 7 and the floor around the suction port 6 are grounded. The passage of the suction air passing between the surfaces will be reduced. This produces the effect of increasing the negative pressure around the suction port 6 by passing the same air volume through a smaller passage, and as a result, increasing the pressure around the suction port 6 to suck up more dust from the floor surface. Is possible. Further, since the front of the moving body 11 in front of the suction port 6 secures a space with the floor surface, when the suction tool 5 is moved forward, there is nothing in contact with the floor surface in front of the suction port 6. It is possible to prevent the dust from being sucked from the suction port 6 as a result of pushing the dust on the surface.

  Next, as shown in FIGS. 4 and 5, the bottom surface of the floor grounding body 17 at the front of the moving body 11 and the rear 12 of the moving body and the detecting portion 14 of the detecting body 13 are made of rubber, brush, cloth-like soft body, etc. By comprising by this, the damage to a floor surface can be prevented by comprising the part which touches a floor surface with a soft body etc.

  Next, as shown in FIG. 3, the moving body front 11 and the moving body rear 12 are configured with substantially the same width as the suction port 6, and the pipe 9 for transmitting the suction air is near the center of the suction tool 5. The pressure at both ends of the suction port 6 moving away from the pipe 9 decreases. Therefore, by setting the front 11 of the moving body and the rear 12 of the moving body to substantially the same width as the suction port 6, the pressure at both ends of the suction port 6 can be increased, dust can be sucked in and the performance can be further improved. be able to.

  Moreover, although it was set as the vacuum cleaner which has the handle | steering-wheel 2, the hose 3, and the extension pipe | tube 4 in this invention, the vacuum cleaner which has the suction tool formed under the cleaner main body, the pipe extended from the main body upper part, and the handle | steering-wheel part. . The same effect can be obtained with a suction tool of a hand-held vacuum cleaner.

  In the present invention, the suction tool has two moving rollers in the front and two in the rear. However, the same effect can be obtained even if the suction tool has no moving roller, only the front or only the rear. It is done.

(Embodiment 2)
FIG. 6 is a diagram for explaining a second embodiment of the present invention. Fig.6 (a) is sectional drawing at the time of moving a suction tool ahead, FIG.6 (b) is sectional drawing at the time of moving a suction tool back.

  Next, as shown in FIG. 6, FIG. 6 (a) is a view when the suction tool 5 is moved forward, and FIG. 6 (b) is a view when the suction tool 5 is moved backward.

  The operation in FIG. 6A will be described. The operation of each part is the same as that shown in the first embodiment, and when the suction tool 5 is moved forward, the moving body rear 12 moves downward. . At that time, the bottom surface of the floor grounding body 17 12 after the moving body is not brought into contact with the floor surface and is brought close to each other with a gap of 1 mm or less. When the suction tool 5 in FIG. 6B is moved backward, the moving body front 11 is moved downward. At this time, the bottom surface of the floor grounding body 17 in front of the moving body 11 is configured not to contact the floor surface but to be close to each other with a gap of 1 mm or less.

About the suction tool of the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.
As shown in FIGS. 6 (a) and 6 (b), the bottom surface of the floor grounding body 17 is not brought into contact with the floor surface, but is brought close to the floor surface with a gap of 1 mm or less, so that the space between the lower floor 7 and the floor surface around the suction port 6 Not only can the passage of the suction air flow be reduced and the negative pressure around the suction port 6 be increased, but a minute gap of 1 mm or less is provided so as not to block the suction air flow. The suction effect can be obtained, and dust can be sucked more effectively.

As described above, the suction tool of the vacuum cleaner according to the present invention can be used by providing the front and rear of the suction port, before and after the moving body that detects the movement of the suction tool and moves up and down. Therefore, it can be suitably used in the field and application of household vacuum cleaners and industrial vacuum cleaners that use an electric vacuum cleaner suction tool.

DESCRIPTION OF SYMBOLS 5 Suction tool 6 Suction port 7 Under floor 11 Before moving body 12 After moving body 13 Detection body 14 Detection part 15 Operation part 16 Rotation part 17 Floor surface grounding body 18 Central axis 19 Arm part 20 Rib body

Claims (5)

In a suction tool having a floor under a suction port for sucking dust, a floor covering the floor, and a pipe rotatably held by the floor and the floor,
The suction tool is a detection body that detects the movement of the front and rear of the suction tool, and is movable up and down in accordance with the detection of the detection body, and the front and rear of the moving body respectively disposed at the front and rear of the suction port. The detection body comprises a detection portion whose one end is in contact with the floor and an operation portion at one end, and has a rotation shaft between the detection portion and the operation portion. Are configured to move each up and down,
Before and after the moving body, the floor grounding part that can move up and down, a rotatable central axis, an arm part that extends from the central axis and is connected to the floor grounding part, and an arm part substantially from the central axis It has a connecting body composed of rib bodies extending in the opposite direction, and either the ground contact part of the floor or the connecting body is configured by urging the moving body before and after the moving body upward by a spring body etc. The moving body is moved in the direction of the floor by moving the rib body of the connecting body by the operation portion of the detecting body , and the suction tool is provided before and after the moving body. When the suction tool moves forward, the front of the moving body moves upward, and after the moving body moves downward,
When the suction tool moves backward, it is configured to move downward before the moving body and move upward after the moving body.When the suction body moves downward before and after the moving body, The suction tool of the vacuum cleaner comprised so that the bottom face of the floor grounding part after the said mobile body might contact | connect a floor surface. The suction tool for a vacuum cleaner according to claim 1, wherein the bottom surface of the floor grounding portion before the moving body and after the moving body is formed of a rubber body, a brush, a cloth-like soft body, or the like. The suction tool of the vacuum cleaner of Claim 1 or 2 which comprised the detection part of the detection body with the rubber body, the brush, the cloth-like soft body, etc. The suction tool of the vacuum cleaner of any one of Claims 1-3 which comprised the moving body before and after the moving body by the width | variety substantially the same as the width | variety of the suction inlet. Before moving body, the floor surface ground portion bottom surface during the downward movement of the moved body configured to close the floor surface, and any of claims 1-4 in which the distance between the floor surface is constructed as 1mm or less 1 The vacuum cleaner suction tool described in the paragraph.

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