JP4040289B2 - Suction port body for electric vacuum cleaner and electric vacuum cleaner using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a suction mouth for a vacuum cleaner and a vacuum cleaner using the same.
[0002]
[Prior art]
The structure of the conventional suction inlet for vacuum cleaners and a vacuum cleaner using the same is demonstrated using FIGS. 8-12.
[0003]
First, the overall configuration of the vacuum cleaner will be described with reference to FIG. 8. An extension pipe 33 is connected to the suction port body 31 via a connection pipe 32, and a hand operation unit 34 is connected to the other end of the extension pipe 33. A hose 35 is connected to the rear of the hand operation unit 34, and the other end of the hose 35 is connected to the connection port 36b of the cleaner body 36, and generates electric suction air provided in the cleaner body 36. Dust passages (not shown) communicating with the blower 36a are respectively formed inside.
[0004]
Next, the structure of the suction port body 31 will be described with reference to FIGS. 9 to 12. The suction port body 31 communicates with a dust collection chamber 37 a having an opening 37 for sucking dust, and the suction port body 31 is connected to the suction port body 31. A held connection pipe 32 is arranged. In addition, a rotating brush 39 having a plurality of brushes 38 is disposed in the dust collecting chamber 37a as a dust collecting body, and the rotating brush 39 is driven from a motor (not shown) via a belt (not shown). The rotational force is transmitted and the structure rotates. Further, as a support for the suction port body 31, a pair of left and right fixed raised cloths 40 fixed to the suction port body 31 are provided in front of the opening 37, and a suction port body 31 is disposed at the rear end of the suction port body 31. A rotating roller 41 that is fixed so as to be freely rotatable is arranged. Further, the front wall 42, which is one of the walls of the suction port body constituting the dust collection chamber 37a, rises in a substantially vertical direction, and the lower end of the front wall 42 curves backward to form the opening 37. is doing. Here, the front wall 42 is formed with a concave portion 43 that is concave and convex when the suction port 31 is viewed from the front-rear direction, and the lower end of the front wall 42 is substantially the same as the lower end 44 of the fixed raised fabric attachment portion. It is formed to the height. Further, a shock absorber 45 made of an elastomer for protecting the wall surface is disposed above the front wall 42, and the foremost portion of the shock absorber 45 is disposed in front of the foremost portion of the front wall 42.
[0005]
With the above configuration, the suction port 31 is supported by a pair of left and right fixed raised cloths 40 and a rotating roller 41, and when suction is applied from the cleaner body 36, dust on the surface to be cleaned is scraped by rotation of the rotating brush 39. Then, the vacuum cleaner body 36 sucks the air through the connection pipe 32, the extension pipe 33, and the hose 35.
[0006]
[Problems to be solved by the invention]
In such a conventional vacuum cleaner suction port body and a vacuum cleaner using the same, since the recess 43 is formed, dust on the wall can be removed to some extent. Since the front wall 42 forming the dust chamber 37a is configured such that the lower end of the front wall 42 is curved toward the opening 37, it is necessary to make the front wall 42 to the opening 37 relatively wide. As a result, the area from the foremost part of the buffer body 45 to the opening 37 is widened, and the dust at the wall cannot be clearly removed. In the conventional example, the front wall 42 is described. However, the wall forming the side and the rear is also curved toward the opening 37 in the same manner as the front wall 42. It could not be removed clearly.
[0007]
The present invention is intended to solve the above-described conventional problems, and an object thereof is to provide a vacuum cleaner suction port body having a good dust collecting property near a wall and a vacuum cleaner using the same. Yes.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention comprises a dust collection chamber having a lower opening for sucking dust, and a dust passage that communicates with the dust collection chamber and serves as a flow path for the dust. with the lower end of the front wall forming the chamber to be substantially L-shaped portion projecting forwardly from the front wall, the foremost portion of the generally L-shaped portion is located within front of the suction inlet main body When the suction port is viewed from the front-rear direction, the L-shaped portion is concave and convex so that the L-shaped portion is concave and convex, and the suction port is viewed from the vertical direction. A vacuum cleaner suction port body in which the hollow portion B is formed in the same position, and the lower end of the front wall forming the dust collection chamber is directed forward from the front wall. with the configuration as substantially L-shaped portion projecting Te, when cleaning the the wall, bringing the outer wall and the opening of the suction mouth Can therefore, with the wall of the dust collection is improved, prior to the lower end of the wall that has an L-shaped portion projecting forward, ensuring contact surface with the suction port body and the surface to be cleaned around the opening It is also possible to form an R-shaped portion for reducing friction with the surface to be cleaned, particularly the carpet surface, and maintain the operability of the suction port body.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
According to a first aspect of the present invention, there is provided a dust collection chamber having a lower opening that sucks dust, and a dust passage that communicates with the dust collection chamber and serves as a flow path for the dust. with the lower end of the front wall forming the chamber to be substantially L-shaped portion projecting forwardly from the front wall, the foremost portion of the generally L-shaped portion is located within front of the suction inlet main body When the suction port is viewed from the front-rear direction, the L-shaped portion is concave and convex so that the L-shaped portion is concave and convex, and the suction port is viewed from the vertical direction. A vacuum cleaner suction port body in which the hollow portion B is formed in the same position, and the lower end of the front wall forming the dust collection chamber is directed forward from the front wall. with the configuration as substantially L-shaped portion projecting Te, when cleaning the the wall and bringing the outer wall and the opening of the suction mouth Securing order, together with the wall of the dust collection is improved, that the lower end of the front wall is L-shaped portion projecting toward the front, the contact surface with the suction port body and the surface to be cleaned around the opening It is also possible to form an R-shaped portion for reducing friction with the surface to be cleaned, particularly the carpet surface, and maintain the operability of the suction port body.
[0010]
Invention of Claim 2 of this invention has an electric blower for dust suction, and the vacuum cleaner provided with the connection port connected so that it may connect with the suction inlet body for vacuum cleaners of Claim 1 Therefore, cleaning workability can be improved by using a suction port body with good dust collecting properties at the wall while preventing damage to the surface to be cleaned and operability.
[0011]
【Example】
Example 1
A first embodiment of the present invention will be described below with reference to FIGS.
[0012]
First, the overall configuration of the vacuum cleaner will be described with reference to FIG. 1. An extension pipe 3 is connected to the suction port body 1 via a connection pipe 2, and a hand operating section 4 is connected to the other end of the extension pipe 3. A hose 5 is connected to the rear of the hand operation unit 4, and the other end of the hose 5 is connected to the connection port 6 b of the cleaner body 6, and generates electric suction air provided in the cleaner body 6. Dust passages (not shown) communicating with the blower 6a are respectively formed inside.
[0013]
Next, the structure of the suction port body 1 will be described. The main body 1b of the suction port body 1 forming the dust collection chamber 7a having the opening 7 for sucking dust and the dust collection chamber 7a communicate with the suction port body. The suction port body 1 is composed of a connection pipe 2 which is held by a main body 1b and has a dust passage 2a therein. Here, the connection pipe 2 is attached to the front wall 8 which is a wall portion forming the dust collection chamber 7a of the main body 1b of the suction port body 1 so that the main body 1b of the suction port body 1 can be easily moved along the wall. It has a krut mechanism that rotates until it is substantially parallel to the surface. In addition, a rotating brush 10 having a plurality of brushes 9 is disposed in the dust collecting chamber 7a as a dust scooping body, and the rotating brush 10 is connected to a motor (not shown) via a belt (not shown). The rotational force is transmitted and the structure rotates. In addition, a pair of left and right fixed raised cloths 11 fixed to the suction port body 1 in front of the opening 7, and a pair of left and right fixed raised cloths A12 fixed to the suction port body 1 in the rear of the opening 7. A brushed cloth roller 13 that is rotatably fixed to the suction port body 1 is disposed behind the main body 1b of the suction port body 1. Here, the fixed raising cloth 11 is curved in a substantially L shape from the front wall 8 to the lower surface 15 of the suction port body 1, and the fixed raising cloth 11 coincides with the front-rear direction of the suction opening body 1, The lodging process is given in the direction that falls from the front to the back.
[0014]
Moreover, the lower end 16 of the fixed raising cloth 11 is arranged above the ridge line connecting the lower end 17 of the fixed raising cloth A12 and the lower end 18 of the raising cloth roller 13. Moreover, the opening part 7 is formed in the lower end of the front wall 8 of the lower frame 1a which forms the lower surface of the main body 1b of the suction inlet body 1 by the L-shaped part 19 which curves in a substantially L shape toward the front. is doing. In addition, the L-shaped portion 19 is formed with a concave portion A20 that is concave and convex when the suction port body 1 is viewed from the front-rear direction and a concave portion B21 that is concave and convex when the suction port body 1 is viewed from the vertical direction at the same position. Yes. Here, the size of the hollow portion A20 is set to a width of 10 mm or less and a depth of 1 mm or more, and both the hollow portion A20 and the hollow portion B21 are gently curved.
[0015]
In addition, the lower end of the L-shaped portion 19 is disposed above the lower end 22 of the attachment portion of the fixed raised fabric 11, and the L-shaped portion 19 is formed to have substantially the same width as the brush 9. Further, a buffer body 23 made of an elastomer for protecting the wall surface is disposed above the front wall 8 to form the main body 1b of the suction port body 1, and the frontmost portion of the L-shaped portion 19 is the buffer body 23. The same as the foremost part of is arranged behind it. Further, a protrusion 24 is formed on the front surface of the buffer body 23.
[0016]
With the above configuration, the suction port 1 is supported by a pair of left and right fixed raised cloths A11 and raised cloth rollers 13, and when suction is applied from the cleaner body 6, the dust on the surface to be cleaned is rotated by the rotating brush 10. Scooped up and sucked into the cleaner body 6 through the connecting pipe 2, the extension pipe 3 and the hose 5.
[0017]
Thus, by forming the L-shaped portion 19, the front-rear width of the lower end of the front wall 8 of the suction port body 1 can be secured, and the R-shaped portion 30 for reducing friction with the surface to be cleaned, in particular, the carpet surface. It can also be formed, and the operability of the suction port 1 can also be maintained. Further, when cleaning the wall, the inflow airflow into the front wall 8 increased by forming the recess B21 directly flows into the recess A20, and the dust collecting property of the surface to be cleaned near the recess A20 can be improved. . Further, the size of the depression A20 is set to be 10 mm or less in width and 1 mm or more in depth, and when cleaning in the order of the tatami mat, the lift due to the adsorption of the tatami in the depression A20 is about 0.5 mm. Therefore, if a depth of 1 mm or more is ensured, there is always a space between the tatami and the depression A20, so that dust collection can be improved without impairing operability, while in the reverse direction of the tatami When cleaning, the folding pitch of the tatami mat is about 12 mm. Therefore, if the width is 10 mm or less, the tatami mat can be prevented from entering due to adsorption to the recess A20, and the operability is not impaired. Can be improved. Moreover, the surface to be cleaned and the wall surface can be prevented from being damaged by making the indented portion A20 and the indented portion B21 gently curved. Further, by arranging the lower end of the L-shaped portion 19 above the lower end 22 of the attachment portion of the fixed raising cloth 11, not only the recess portion A20 of the front wall 8 of the suction port body 1 but also the portions other than the recess portion A20. The ventilation area with the surface to be cleaned is increased, and as a result, the airflow passing through the front wall 8 of the suction port body 1 in the front-rear direction is increased, and also the cleaning to be formed at the lower end of the front wall 8 of the suction port body 1 By making it possible to reduce the bottom R30 for reducing friction with the surface, particularly with respect to the carpet surface, the wall surface and the opening 7 can be brought closer as a result, and the dust collecting property at the wall can be improved, and the front wall It is possible to prevent the surface to be cleaned from being damaged by the lower end of 8. Further, by making the L-shaped portion 19 substantially the same width as the brush 9, it becomes possible to remove the dust in the opening 7 to the vicinity of the L-shaped portion 19 by the brush 9, and the overall dust collecting property. You can get a clear feeling. In addition, by arranging the foremost part of the L-shaped part 19 the same as the foremost part of the buffer body 23 behind, the wall surface comes into contact with the buffer body 23 when cleaning the wall surface, and the wall surface is damaged. It can prevent and the wall surface and the opening part 7 approached, and can improve the dust collecting property near a wall. Further, by forming the protruding portion 29 on the front surface of the buffer body 23, it becomes possible for airflow to flow from above the front wall 8 and improve the dust collecting property at the wall. Further, by supporting the suction port body 1 with the fixed raised cloth A12 and the raised cloth roller 13 disposed behind the opening 7, the fixed raised cloth 11 that requires a relatively large installation area in front of the opening 7 is attached. It is not necessary to form the portion, and the L-shaped portion 19 can be formed widely, and the dust collecting property at the wall can be improved.
[0018]
In the above embodiment, the L-shaped portion 19 is formed of a soft material by two-material molding or the like, and the foremost portion of the L-shaped portion 19 is arranged at substantially the same position as the foremost portion of the buffer body 23. It is possible to prevent the surface to be cleaned from being damaged by the lower end of the wall 8, and as a result, the wall surface and the opening 7 can be brought close to each other, and it is clear that the dust collecting property at the wall can be improved.
[0019]
(Example 2)
A second embodiment of the present invention will be described below with reference to FIG.
[0020]
The same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0021]
At the lower end of the side wall 8 of the lower frame 1a that forms the lower surface of the main body 1b of the suction port body 1, an L-shaped portion 46 that is curved in an approximately L shape toward the side is formed, and the opening 7 Is configured to communicate with each other through a recess 47 formed in the lower frame 1a even when the suction port body 1 is in contact with the surface to be cleaned.
[0022]
Further, a buffer body 23 made of an elastomer for protecting the wall surface is disposed to form the main body 1b of the suction port body 1, and the most protruding portion of the L-shaped portion 46 is disposed within the most protruding portion of the buffer body 23. ing. Further, a protrusion 24 is formed on the front surface of the buffer body 23.
[0023]
For this reason, by arranging the most protruding part of the L-shaped part 46 in the same direction as the most protruding part of the buffer body 23, the wall surface comes into contact with the buffer body 23 when cleaning the wall surface. Since the wall surface can be prevented from being scratched and the wall surface and the opening 7 are close to each other, the dust collecting property at the wall side can be improved.
[0024]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the suction inlet for vacuum cleaners with the good dust collection property by the wall, and a vacuum cleaner using the same can be provided.
[Brief description of the drawings]
FIG. 1 is a general view of a vacuum cleaner according to a first embodiment of the present invention. FIG. 2 is a front view of the suction port. FIG. 3 is a bottom view of the suction port. FIG. 5 is a sectional view taken along the line AA in FIG. 2. FIG. 6 is a sectional view taken along the line BB in FIG. 2. FIG. 7 is a bottom view of the suction port body according to the second embodiment of the present invention. ] General view of a conventional vacuum cleaner [FIG. 9] Front view of the suction port body [FIG. 10] Bottom view of the suction port body [FIG. 11] Side view of the suction port body [FIG. CC cross section [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Suction port body 1a Lower frame 1b Suction port body 2a Dust passage 7 Opening part 7a Dust collection chamber 8 Front wall (wall part)
19 L-shaped part 20 Indented part A
21 Indentation B
30 R shape part

Claims (2)

A dust collection chamber having a lower opening for sucking dust, and a dust passage that communicates with the dust collection chamber and serves as a flow path for the dust, and a lower end of a front wall forming the dust collection chamber is the front with a substantially L-shaped portion projecting forward from the wall, the foremost portion of the generally L-shaped section, a structure located within front of the suction inlet main body, viewed suction port body from the front-rear direction The recess A is formed so that the L-shaped portion has an uneven shape, and the recess B is formed so that the L-shaped portion has an uneven shape when the suction port is viewed from above and below. The suction inlet for vacuum cleaners which formed the part A and the hollow part B in the same position.   An electric vacuum cleaner comprising an electric blower for sucking dust and having a connection port connected to communicate with the vacuum cleaner suction port body according to claim 1.

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