JPS642676Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a suction port body for a vacuum cleaner.

[Conventional technology]

BACKGROUND ART Conventionally, there is a suction port body in which the length of the bristles of brush bristles installed on a brush stand can be adjusted to be long or short depending on the condition of the floor surface. Therefore, if the floor surface is hard such as tatami mats or wooden boards, if you switch the knob of the switching lever protruding from the upper holder of the suction port body to the tatami side, the brush stand protruding from the top surface can be removed. The protrusion and the rib provided on the switching lever come into contact with each other, pressing the brush stand toward the floor surface and fixing the brush bristles in a protruding state. On the other hand, if the floor surface is soft, such as a carpet, by switching the knob of the switching lever to the carpet side, the protrusion of the brush stand and the rib of the switching lever will be separated. At this time, the brush stand is urged toward the floor by the spring coil and the bristles remain in a protruding state, so when the suction port body is pressed against the floor, the spring coil is compressed by this pressing force. The brush stand enters the brush housing provided in the suction port body, and the brush bristles are slightly protruded.

[Problem that the invention attempts to solve]

When the brush bristles are slightly protruding, the brush stand is not fixed and is always biased toward the floor by the spring coil.
Not only does the bristles of the brush bristles intersect with the bristles of the carpet, resulting in very poor running performance, but also the rattling between the brush stand and the interior of the brush storage compartment causes noise as the brush stand moves up and down. becomes large.
Furthermore, since a spring coil is required to urge the brush stand toward the floor surface, there is a problem that the number of parts increases accordingly.

[Means for solving problems]

This idea includes a brush storage section provided along the longitudinal direction of the lower holder, an opening through which brush bristles enter and exit, and a brush stand provided at the edge of this opening toward the floor. A locking part to prevent the brush from falling off, and an engaging part that is above the locking part and protruding from the inner wall of the brush storage part. A projecting portion is provided on the upper surface of both ends, and an engaged portion that engages with an engaging portion protruding from the inner wall of the brush storage portion is provided on both sides. are formed to such an extent that the brush bristles can cross over the tops of each other due to the pressing force of the brush bristles against the floor surface, and the switching lever is slidably disposed in an upper holder located above the brush stand and facing the brush storage section; The switching lever should be provided with a contact part that comes into contact with the top of the convex part and presses the brush stand toward the floor, and a base part that prevents the brush stand from slipping upward, on the surface facing the brush stand. The brush stand is positioned between the engaging part and the engaged part and the locking part, the brush bristles are fixed in a protruding state, and the switching lever is slid to come into contact with the convex part. At the same time as releasing the engagement with the part, the brush holder is positioned between the base part and the part where the engaging part and the engaged part cross over the tops of each other and engage by pressing the brush bristles against the floor surface. By fixing the brush bristles in a slightly protruding state, the running performance of the suction port body is improved and the number of parts is reduced.

[Effect]

When the switching lever is slid toward the tatami/board side, the locking part and the abutting part each come into contact with the top of the convex part of the brush stand and ride on it, pushing the brush stand towards the floor surface. , the brush stand is positioned between the engaging portion of the engaging portion and the engaged portion and the locking portion;
The brush bristles are fixed in a protruding state.

Next, when the switching lever is slid toward the soft carpet side of the floor surface, the locking part and the abutting part of the switching lever are separated from the top of the convex part of the brush stand, and the brush stand is released. In this state, the brush bristles maintain their original long protruding state, so when the suction port body is pressed against the floor surface, the brush bristles receive pressing force from the floor surface, so that the engaging portion of the brush storage section The brush stand is positioned between the engaged portion of the brush stand and the base portion, and the engaged portion of the brush stand passes over the top of each other, and the brush bristles are fixed in a slightly protruding state.

[Example of idea]

An embodiment of this invention will be described in detail based on the drawings.

In FIGS. 1 to 6, the suction port body is connected to the suction port (not shown) of the vacuum cleaner body (not shown) via a rotary tube 1 and a hose (not shown), As shown in FIGS. 2a to 2d, it is comprised of a lower holder 2 facing the floor, an upper holder 3 that engages with the lower holder 2, a switching lever 4, and a brush stand 5.

At the center of the lower holder 2, there is provided an air passage section 6 that opens toward the floor, and a semicircular holding section 7 that communicates with the air passage section 6 and holds the rotating tube 1. It is being Further, a front sled portion 8 and a rear sled portion 9 are formed at the front and rear ends of the lower holder 2 in the width direction, respectively, to block air flow to some extent. Rollers 10 are attached to both ends of the front sled section 8 in the longitudinal direction to reduce friction with the floor surface. A brush storage part 11 is formed in the rear sled part 9, passing through the support part 7 along the longitudinal direction and opening toward the floor surface.

As shown in FIGS. 5a and 5b, the brush storage section 11
is the opening 1 through which the brush bristles 16 enter and exit toward the floor surface.
2 and a side wall 1 that guides the brush stand 5 in a vertically movable manner.
3 and 13.

At the edge of the opening 12 of the brush storage section 11 in the floor direction, that is, on the lower end inner wall (floor side) of the side walls 13, 13, locking parts 14, 14 are provided to prevent the brush stand 5 from falling off. A plurality of engaging portions 15, 15 are protruded from the inner wall of the locking portions 14, 14 at substantially central portions in the depth direction, facing each other at a plurality of locations. Brush bristles 16 are planted on the lower surface (floor surface side) of the brush stand 5, protrusions 17, 17 are provided on the upper surface of both ends, and on both sides there are provided brush bristles 16 on the inner wall of the brush storage section 11. Engaged parts 18, 18, . . . that engage with the protruding engaging parts 15 are provided at locations corresponding to the protruding engaging parts 15, respectively. As shown in FIG. 5, the engaged parts 18, 18, . . . are formed by recessing the side surface of the brush stand 5 and cutting out the corners.
The engagement state between the engaging parts 15, 15... and the engaged parts 18, 18... is determined by the pressing force of the brush bristles 16 against the floor surface.
They are formed to such an extent that they can climb over each other's tops.

The switching lever 4 is used to adjust the length of the brush bristles 16, and as shown in FIG.
A locking portion 20 is formed at one end of the connecting rod 20a, and the tip of this locking portion 20 is formed into a slope so that it can easily ride on the top while abutting the convex portion 17 of the brush stand 5. ing. A base portion 21 is formed at the other end. A knob 22 is protruded from the surface of the base portion 21, and a contact portion 23 is formed on the back surface of the base portion 21, which contacts the top of the convex portion 17 of the brush stand 5 when the brush bristles 16 are in a protruding state. .

As shown in FIG. 2d, the upper holder 3 has a cover part 24 in the center thereof that comes into contact with the upper edge of the air passage part 6;
A semicircular holding portion 25 corresponding to the holding portion 7 is formed. Further, one end of the upper holder 3 is provided with a rib 26 for slidably holding the locking part 20 of the switching lever 4 in the longitudinal direction, and the other end is provided with a rib 26 for holding the locking part 20 of the switching lever 4 so as to be slidable in the longitudinal direction. A window frame body 27 is formed which comes into contact with the front surface side of the window frame body 27. rib 2
6 is formed with a recess 26a that slidably engages with the connecting rod 20a of the switching lever 4. A window 28 for projecting the knob 22 to the outside is provided in the center of the window frame body 27, and ribs 29, 29 for guiding the base portion 21 of the switching lever 4 are provided at both ends. ing.

Therefore, the switching lever 4 is positioned above the brush stand 5 and positioned on the upper holder 3 facing the brush storage section 11, and the rib 26 of the upper holder 3 is positioned above the brush stand 5.
A knob 22 is arranged between the window frame body 27 and the window frame body 27 so as to protrude from the window 28, and by operating the knob 22, the fifth brush upper surface is slidably disposed in the longitudinal direction within the window 28. ing.

On the other hand, a brush stand 5 is arranged in a brush storage section 11 formed in the lower holder 2 so that the brush bristles 16 protrude from an opening 12. The lower holder 2 and the upper holder 3 are connected to the holding part 7 and the holding part 2.
The rotary tube 1 is communicated with the air passage section 6 and held rotatably between the upper holder 3 and the lower holder 2, and a band-shaped buffer (not shown) is sandwiched between the upper holder 3 and the lower holder 2. They are connected by screwing through screw holes 30.

Next, the operation will be explained.

First, when the knob 22 is moved to the hard tatami side of the floor, the switching lever 4 slides on the top surface of the brush stand 5,
As shown in FIG. 7b, the locking part 20 and the contact part 23 of the switching lever 4 are in a state of contacting and riding on the top of the convex part 17 of the brush stand 5, respectively.
Since the brush stand 5 is pressed toward the floor surface, as shown in FIG.
As shown in FIG. 2, the brush stand 5 is positioned between the engagement portion between the engaging portion 15 and the engaged portion 18 and the locking portion 14, and the brush bristles 16 are fixed in a protruding state.

The protruding state of the brush bristles 16 is fixed by the engagement between the engaging part 15 and the engaged part 18, and the locking part 14 is fixed when the brush stand 5 is in the brush storage part 1.
This prevents it from falling out of the opening 12 of 1.

Next, when the knob 22 is moved to the soft carpet side of the floor surface, the locking part 20 and the abutting part 23 of the switching lever 4 are respectively connected to the convex part 17 of the brush stand 5, as shown in FIG. 7a. Brush stand 5 away from the top
will be canceled. However, in this state, the brush bristles 16 maintain their original protruding state.
Therefore, when the suction port body is pressed against the floor surface when starting to use the vacuum cleaner, the brush bristles 16 receive a pressing force from the floor surface, so that the brush storage portion 11 as shown in FIG. The engaging part 15 and the brush stand 5
The engaged portion 18 means that the brush stand 5
are positioned, and the brush bristles 16 are fixed in a slightly protruding state. At this time, the brush stand 5 is restricted from escaping upward by the base portion 21. Therefore, even if the brush bristles 16 are entangled with the bristles of the carpet and pulled, they do not extend any further toward the floor surface, and the length of the bristles of the brush bristles 16 can be fixed at a constant value.

FIG. 8 shows another embodiment of this invention, in which an engaging portion 115 is provided on the inner wall of the brush storage portion 111.
A plurality of elastic bodies 31 are provided so as to protrude inwardly from each other. The tip of the elastic body 31 is in contact with the inner wall of the brush storage section 111. Therefore, by setting the knob 22 to the carpet side and pressing the suction port body against the floor surface, the brush bristles 1
A pressing force from the floor is applied to 16. Therefore, the engaged portion 118 of the brush stand 105 is connected to the elastic body 3.
After overcoming this while elastically pressing the brush bristles 116, the brush bristles 116 are again engaged with the elastic body 31, and the brush bristles 116 are fixed in a slightly protruding state. At this time, since the engaging portion is the elastic body 31, the pressing force applied to the brush bristles 116 may be relatively small, and moreover, the bristles 116 can smoothly pass over each other's tops.

Note that this invention is not limited to the above example, and the same effect can be obtained even if the engaged portion 218 of the brush stand 205 is formed of an elastic body 231, as shown in FIG.

[Effect of idea]

This idea includes a brush storage section provided along the longitudinal direction of the lower holder, an opening through which brush bristles enter and exit, and a brush stand provided at the edge of this opening toward the floor surface. A locking part to prevent the brush from falling off, and an engaging part that is above the locking part and protruding from the inner wall of the brush storage part. A convex portion is provided on the upper surface of both ends, and an engaged portion is provided on both sides to engage with an engaging portion protruding from the inner wall of the brush storage portion. The switching lever is located above the brush stand and is slidably arranged in the upper holder facing the brush housing, and the switching lever is The surface facing the brush stand is provided with a contact part that comes into contact with the top of the convex part and presses the brush stand toward the floor, and a base part that prevents the brush stand from slipping upward. The brush stand is positioned between the engagement part and the engaged part and the locking part, the brush bristles are fixed in a protruding state, and the switching lever is slid to engage the convex part and the abutting part. At the same time, press the brush bristles against the floor surface and position the brush stand between the base part and the part where the engaging part and the engaged part cross over the tops of each other and engage, and remove the brush bristles. Since the bristles are fixed in a slightly protruding state, especially when running on soft floors such as carpets, there is no need to apply pressure to the bristles from spring coils, etc., as with conventional brushes. Therefore, the brush bristles and the bristles of the carpet do not cross each other, improving running performance and eliminating noise caused by rattling between the brush stand and the brush storage section.

Furthermore, since the conventionally used spring coil is no longer necessary, the number of parts is reduced and the cost is reduced.

[Brief explanation of drawings]

The drawings show an embodiment of this invention.
The figure is a perspective view, Figures 2 a to d are exploded perspective views, Figure 3 is a cross-sectional view taken along line A-A in Figure 1, and Figure 4 is Figure 1 B-B.
5a-b are cross-sectional views of main parts taken along line A-A in Fig. 1, Fig. 6 is a perspective view of main parts of the brush stand 5, and Figs. 7 a-b are cross-sectional views of the main parts of the brush stand 5 and the switching lever 4. FIGS. 8 and 9 are sectional views of main parts showing other embodiments, respectively. 2... Lower holder, 3... Upper holder, 4... Switching lever, 5... Brush stand, 11... Brush storage section, 12... Opening, 14... Locking part, 15...
Engaging portion, 16... Brush bristles, 17... Convex portion, 18
...Engaged part, 21...Base part, 23...Abutment part.

Claims (1)

[Claims for Utility Model Registration] (1) A brush that is connected to the suction port of a vacuum cleaner and consists of an upper holder and a lower holder that engages with the upper holder, and that stores a brush stand therein so as to be able to move up and down. In a suction mouth body of a vacuum cleaner having a storage portion and a switching lever for adjusting the length of brush bristles installed in the brush stand, the brush A storage section is provided, and the brush storage section includes an opening through which the brush bristles enter and exit, a locking section for preventing the brush stand from falling off, provided at the edge of the opening in the floor direction, and the brush holder. An engaging part is provided above the locking part and protrudes from the inner wall of the brush storage part, and the brush stand has the brush bristles that enter and exit from the opening part on the lower surface, and the brush bristle is implanted on the lower surface of the brush stand, and A convex portion is provided protrudingly on the brush bristle, and engaged portions are provided on both sides to engage with the engaging portions protruding from the inner wall of the brush storage portion. The switching lever is slidably disposed on the upper holder located above the brush stand and facing the brush storage section, and the switching lever The lever includes a contact part that abuts the top of the convex part on a surface facing the brush stand and presses the brush stand toward the floor, and a base part that prevents the brush stand from slipping upward. By providing the above, the brush stand is positioned between the engaging part of the engaging part and the engaged part and the locking part, and the brush bristles are fixed in a protruding state, and the switching lever to release the engagement between the convex part and the abutting part, and press the brush bristles against the floor surface so that the engaging part and the engaged part cross over the top of each other and engage. A suction mouth body for a vacuum cleaner, characterized in that the brush stand is positioned between the combined part and the base part, and is fixed in a state in which the brush bristles slightly protrude. (2) A suction mouth body for a vacuum cleaner according to claim 1 of the utility model registration claim, characterized in that either the engaging part or the engaged part is made of an elastic body.