JP2016106712A - Suction head for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction head for vacuum cleaners capable of applying substantial beating force to bedding without causing lowering of dust-sucking force from a suction port.SOLUTION: The suction head for vacuum cleaners includes: a suction head body 2 having a suction port 4 formed on a bottom; a roller 5 projectingly disposed from the bottom so as to rotate on a cleaning object with the movement of the suction head body in the longitudinal direction; a beater 6 for beating the cleaning object; and a drive force transmission member 7 for driving the beater 6 such that the beater is interlocked with the rotation of the roller 5 to beat the cleaning object. The roller 5 includes: a rotating body 5A; a plurality of main ribs 5B radially extendingly formed along the axial direction of the rotating body; and reinforcement ribs 5C for connecting between the plurality of main ribs 5B along the circumferential direction of the rotating body.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a suction head for a vacuum cleaner, and more particularly, a suction head main body having a suction port formed in a bottom portion thereof, and the suction head main body so as to rotate on an object to be cleaned as the suction head main body moves in the front-rear direction. A roller protruding from the bottom; a beater that strikes the object to be cleaned; and a driving force transmission member that drives the beater to strike the object to be cleaned in conjunction with rotation of the roller. The present invention relates to a suction head for a vacuum cleaner.

  Patent Document 1 discloses a suction head of a vacuum cleaner having a hitting function of hitting bedding and hitting dust and the like, and a function of a general cleaner capable of cleaning a hard place such as a floor.

  As shown in FIG. 6A, the suction head includes upper and lower cases 21 and 22, a connecting member 430 communicating with the cleaner body, an air inlet 122 with an adjustable opening area, and an air inlet. And a plurality of striking members 40 that move up and down by a cam 131 that rotates in conjunction with the rotation of the turbine 30.

  The rotation area of the turbine 30 can be adjusted by adjusting the opening area of the air inlet with the inflow air adjusting knob 125, or the rotation of the turbine 30 can be stopped to stop the function of the striking member 40.

  As shown in FIG. 6 (b), in Patent Document 2, a rotation roller 12 is provided on the side outer side of the suction tool body, and a suction groove 13 is formed in the front and back of the bottom surface portion of the suction tool body. A rotating cam 15 interlocked with the roller 12 is formed in the portion, and a diaphragm 14 that gives vertical vibrations by the rotating cam 15 rotating in synchronization with the rotation of the rotating roller 12 at an intermediate portion sandwiched between the suction grooves 13. The suction tool for bedding of the vacuum cleaner comprised as follows is disclosed. 6 (a) and 6 (b) are reference numerals of the drawings shown in the respective patent documents, and are not related to the reference numerals used in the column of the embodiment for carrying out the invention described below. is there.

JP 2005-177485 A Japanese Utility Model Publication No. 01-79447

  However, in the suction head disclosed in Patent Document 1, since a plurality of striking members move up and down by the rotation of the turbine, it is necessary to rotate the turbine at a certain number of revolutions in order to give a sufficient hit to the bedding. Therefore, if the opening area of the air inlet is increased, there is a risk that the dust suction force from the cleaning object suction port formed in the lower case may be reduced, and if the dust suction force from the cleaning object suction port is ensured, the rotational speed of the turbine is reduced. There has been a problem that the torque is lowered or the rotational speed becomes unstable, and a sufficient torque for moving the plurality of striking members up and down cannot be obtained.

  Further, the bedding suction tool disclosed in Patent Document 2 is such that the vibration plate moves up and down in accordance with the rotation of the rotating cam, and the bedding is formed only at the front end portion of the vibration plate located at the left and right lateral width direction center portions of the bedding suction tool. There was a problem that sufficient striking force could not be secured.

  An object of the present invention is to provide a suction head for a vacuum cleaner capable of imparting a sufficient striking force to bedding without causing a decrease in the dust suction force from the suction port in view of the above-described conventional problems. In the point.

  In order to achieve the above-mentioned object, the first characteristic configuration of the suction head for a vacuum cleaner according to the present invention is the suction head having a suction port formed in the bottom as described in claim 1 of the claims. A main body, a roller protruding from the bottom so as to rotate on the object to be cleaned as the suction head body moves in the front-rear direction, a beater that strikes the object to be cleaned, and a rotation of the roller And a driving force transmission member that drives the beater so as to strike the object to be cleaned, and a vacuum cleaner suction head, wherein the roller includes a rotating body, and the rotating body A plurality of main ribs extending in the radial direction along the axial direction and reinforcing ribs connecting the plurality of main ribs along the circumferential direction of the rotating body are provided.

  When the suction head body is moved in the front-rear direction along the surface of the object to be cleaned such as bedding, the roller that protrudes from the bottom of the suction head body rotates in the forward or reverse direction due to friction with the surface of the object to be cleaned. Then, the beater is driven by the driving force transmission member interlocked with the rotation of the roller, and the object to be cleaned is beaten. When the suction head main body moves along the surface of the object to be cleaned, the main rib formed to extend in the radial direction along the axial direction of the rotating body comes into contact with the surface of the object to be cleaned in a line shape instead of a point. Therefore, a sufficient frictional force for rotating the roller is generated, and the roller does not slide without rotating. Further, in a posture in which the intermediate portion between the main ribs adjacent to each other in the circumferential direction of the rotating body faces the surface of the object to be cleaned, the frictional force between the main rib and the object to be cleaned becomes insufficient, and the rotational force may decrease. However, since the rotational force is supplemented by the frictional force between the reinforcing ribs connecting the plurality of main ribs and the object to be cleaned, stable rotation of the roller can be realized. Since the roller rotates due to the frictional force with the object to be cleaned, the suction force from the vacuum cleaner main body can be used exclusively for dust absorption, so a stable dust absorption force can also be realized.

  In the second characteristic configuration, as described in claim 2, in addition to the first characteristic configuration described above, a plurality of the reinforcing ribs are provided at predetermined intervals in the axial direction of the rotating body. In the point.

  Since a large frictional force acts between the reinforcing ribs and the object to be cleaned, the roller can be rotated more stably.

  In the third characteristic configuration, as described in the third aspect, in addition to the first or second characteristic configuration described above, the reinforcing rib is formed in a fan shape in a side view, and is formed on a fan-shaped arc edge. The convex portion is formed outward in the radial direction.

  Since the reinforcing rib formed in a fan shape in a side view is formed in a fan shape in a side view, its tip side easily comes into contact with the surface of the object to be cleaned, and further toward the arcuate edge radially outward A grip force is generated on the surface of the object to be cleaned by the formed convex portion, and a larger rotational force can be obtained.

  In the fourth feature configuration, as described in claim 4, in addition to any one of the first to third feature configurations described above, the driving force transmission member is provided with the main rib as the rotating body rotates. And a linking piece that oscillates by repeatedly engaging and disengaging between them, and a linkage member that moves the beater up and down linked to the oscillation of the oscillating piece.

  As the rotating body rotates, the base end side of the swinging piece engages with the main rib, and then the swinging piece swings around the swinging shaft by releasing. When shifting from the engaged state with the main rib to the disengaged state, the swing piece is largely repelled, and the energy at that time is transmitted as a force for hitting the beater against the surface of the object to be cleaned via the linkage member.

  In the fifth feature configuration, in addition to the fourth feature configuration described above, the suction port is formed so as to be positioned between the beater and the roller. The moving piece is located above the suction port and has a notch portion so as not to hinder the suction flow of the suction head.

  Dust sucked from the suction port located between the beater and the roller is sucked into the vacuum cleaner body along the suction airflow passing through the notch of the swinging piece located at the top of the suction port. Therefore, the dust is smoothly absorbed without causing pressure loss.

  As described above, according to the present invention, it is possible to provide a suction head for a vacuum cleaner capable of imparting a sufficient striking force to bedding without causing a decrease in the dust suction force from the suction port.

(A) is a perspective view of the suction head for a vacuum cleaner, (b) is the bottom view. (A) is an exploded perspective view of a suction head for a vacuum cleaner, and (b) is a perspective view of a roller. (A) is a component assembly explanatory diagram of the main part of the suction head for a vacuum cleaner, (b) is an explanatory diagram of a beater and a driving force transmission member (A) is a partially cutaway perspective view of a suction head for a vacuum cleaner, (b) is a cross-sectional side view of the same. (A), (b), (c) is operation explanatory drawing of a beater and a driving force transmission member. (A) is explanatory drawing of the conventional suction head, (b) is explanatory drawing of the conventional suction tool for bedding.

Below, the suction head for vacuum cleaners by this invention is demonstrated based on drawing.
1 (a) and 1 (b) show the appearance of a vacuum cleaner suction head (hereinafter simply referred to as "suction head") according to the present invention. The suction head 1 has a suction port 4 (4a, 4a, 4b, 4c), and a joint portion 3 that is rotatably attached to the proximal end side of the suction head body 2 and is connected to the suction pipe of the vacuum cleaner body.

  The suction head body 2 is composed of an upper cover body 2A and a lower cover body 2B, and the lower cover body 2B frictionally rotates on an object to be cleaned such as bedding as the suction head body 2 moves in the front-rear direction. As described above, the main roller 5 arranged so that a part of the peripheral surface protrudes from the bottom portion, the rectangular protrusion 6A on which the minute projections 6A are arranged and formed to strike the object to be cleaned, and the main roller 5 The driving force transmission member 7 (see FIGS. 3A and 3B) that drives the beater 6 in the vertical direction so as to strike the object to be cleaned in conjunction with the rotation of the rotation is configured. The main roller 5 described above serves as a roller of the present invention.

  On the front end side of the lower cover body 2B, the sub-rollers 8a and 8b are arranged on the left and right side parts with the rectangular beater 6 arranged in the center part therebetween so that a part of the circumferential surface protrudes from the bottom part, Three suction ports 4a, 4b, 4c are formed between the main roller 5 and the base roller 5 disposed on the base end side of the lower cover body 2B.

  More specifically, as shown in FIG. 2A, a recess 50 extending in the left-right width direction is formed on the base end side of the lower cover body 2B, and recesses 80a and 80b are respectively formed on the left and right end portions on the distal end side. Is formed. The main roller 5 is inserted into the concave portion 50 from below and is rotatably supported at the left and right ends, and the sub rollers 8a and 8b are inserted into the concave portions 80a and 80b from below and rotatably supported at the left and right ends. Yes.

  The recess 50 and the recesses 80a and 80b are formed in a semicircular curved shape with a cut surface orthogonal to the longitudinal direction, and a rectangular suction port 4 (4d, 4e, 4f, 4g) is formed at the top.

  A beater 6 is disposed in the middle between the recesses 80a and 80b. The left and right rising portions 6 a and 6 b formed on the beater 6 are inserted upward from the minute openings of the lower cover body 2 B, and the engaging protrusions 6 c and 6 d formed on the rising portions 6 a and 6 b are the driving force transmission member 7. It is comprised so that it may engage with the engagement holes 7a and 7b of the rocking | fluctuation piece 7A which comprises a part. The engagement holes 7a and 7b are formed as long holes so that the swing piece 7A can move up and down while the engagement protrusions 6c and 6d are engaged.

  The lower cover body 2B and the upper cover body 2A are joined, screws 9a and 9b are inserted through screw holes 10a and 10b formed in the lower cover body 2B, and are fastened and fixed to the upper cover body 2A. A joint portion 3 is joined to a dust suction tube 2C constituted by 2B and the upper cover body 2A via a fixing member 3a.

  As shown in FIG. 2B, the main roller 5 includes a rotating body 5A, a plurality of main ribs 5B formed to extend in the radial direction along the axial direction of the rotating body 5A, and the circumferential direction of the rotating body 5A. A reinforcing rib 5C for connecting the plurality of main ribs 5B is provided. The rotating body 5A, the main rib 5B, and the reinforcing rib 5C are integrally formed using a resin material, but individual parts may be bonded together by bonding or the like.

  The reinforcing ribs 5C are formed in a fan shape in a side view, and a plurality of reinforcing ribs 5C are provided at a predetermined interval in the axial direction of the rotating body 5A. And the convex part 5E is formed toward the radial direction outward in 5 A of fan-shaped arc-shaped edge parts. In the present embodiment, four main ribs 5B are provided at an angle of 90 degrees as viewed in the axial direction of the rotating body 5A, and the main ribs 5B are connected to positions that are divided into four in the axial direction of the rotating body 5A. Reinforcing ribs 5C are provided. The sub-rollers 8a and 8b are also provided with main ribs and reinforcing ribs, similarly to the main roller 5.

  As shown in FIGS. 3A and 3B, the driving force transmission member 7 includes a swing piece 7A, a support portion 7B, and an elastic member 7C. The projections 7c and 7d formed on the swing piece 7A are inserted into the support holes formed on the support portion 7B, so that the swing piece 7A can swing with the projections 7c and 7d serving as a swing shaft. Is done.

  A pair of engagement portions 70 are formed at both ends on the proximal end side of the swing piece 7A, and the engagement portions 70 are repeatedly engaged and disengaged with the main rib 5B as the rotating body 5A rotates. The moving piece 7A is driven to swing. Three elastic body seats 71 are formed on the upper surface of the plate-like portion of the swing piece 7A, and one elastic body seat is formed on the lower surface.

  Three coil springs as the elastic member 7C are arranged on the elastic body seat 71 on the upper surface of the plate-like part, and one coil spring as an elastic member 7C is arranged on the elastic body seat on the lower surface of the plate-like part. . The other end of the coil spring on the upper surface of the plate-like portion is received by a seat formed on the upper cover body 2A, and the other end of the coil spring on the lower surface of the plate-like portion is received by a seat 73 formed on the lower cover body 2B. ing. The elastic member 7C serves as a linkage member that moves the beater 6 up and down in linkage with the swing of the swing piece 7A.

  As shown in FIGS. 4A and 4B, when the roller 5 rotates, the engaging portion 70 formed at the base end portion of the swinging piece 7A engages with the main rib 5B and engages in the rotation direction of the roller 5. When the joint portion 70 is pressed and the swing piece 7A swings around the swing shaft 7c (see FIG. 3B), elastic energy is accumulated in the elastic member 7C.

  When the roller 5 further rotates, the engaging portion 70 is detached from the main rib 5B, and when the elastic energy accumulated in the elastic member 7C is released at that time, the beater 6 vibrates up and down and the object to be cleaned such as bedding is removed. The surface is beaten. By adjusting the number of coil springs and the elastic constants of the coil springs so that the beater 6 is effectively urged downward, the elastic stress of the elastic member 7C on the upper surface of the plate-like portion is reduced by the elastic member 7C on the lower surface of the plate-like portion. It is preferable to set it larger than the elastic stress.

  FIG. 5A shows an initial state in which the suction head 1 is moved to the base end side on the surface of the object to be cleaned. The main roller 5 rotates counterclockwise by the frictional force generated when the main rib 5B and / or the reinforcing rib 5C come into contact with the surface of the object to be cleaned.

  As shown in FIG. 5 (b), when the main roller 5 further rotates, the engaging portion 70 of the main rib 5B and the swinging piece 7A is engaged, the engaging portion 70 is pressed downward, and the swing axis ( The swing piece 7A swings around (see reference numeral 7c in FIG. 3B). At this time, the three elastic members 7C on the upper surface side of the plate-like portion of the swing piece 7A are compressed to accumulate elastic energy.

  As shown in FIG. 5C, when the main roller 5 further rotates and the engaging portion 70 of the swing piece 7A is detached from the main rib 5B, the elastic member 7C is extended and the swing axis (FIG. )), The swing piece 7A swings in the reverse direction, and the beater 6 is urged downward. Further, the beater 6 vibrates up and down in the process of elastic energy attenuation, and the surface of the object to be cleaned is beaten.

  When the suction head 1 is moved to the tip side on the surface of the object to be cleaned, the rotation direction of the main roller 5 is clockwise, the engagement portion 70 is pressed upward, and the swing axis (FIG. 3 ( When the swing piece 7A swings around and the engagement portion 70 is subsequently released, the elastic member 7C on the lower surface side of the plate-like portion of the swing piece 7A expands and the swing shaft is centered. (Refer to reference numeral 7c in FIG. 3B) The swing piece 7A swings around the same, and in this case as well, the beater 6 vibrates up and down while the elastic energy attenuates, and the surface of the object to be cleaned. Is beaten.

  According to such a configuration, when the suction head main body 2 moves along the surface of the object to be cleaned, the main rib 5B formed to extend in the radial direction along the axial direction of the rotating body 5A is the object to be cleaned. Since the surface of the roller contacts linearly instead of a point, a sufficient frictional force for rotating the roller 5 is generated, and the roller 5 does not slide without rotating.

  Further, in a posture in which the intermediate portion between the main ribs 5B adjacent to each other in the circumferential direction of the rotating body 5A faces the surface of the object to be cleaned, the frictional force between the main rib 5B and the object to be cleaned becomes insufficient and the rotational force is increased. Although there is a risk of lowering, since the rotational force is compensated by the frictional force between the reinforcing rib 5C connecting the plurality of main ribs 5B and the object to be cleaned, stable rotation of the roller 5 can be realized.

  Since a large frictional force acts on the object to be cleaned by the plurality of reinforcing ribs 5C, the roller 5 can be rotated more stably, and the reinforcing ribs 5C are formed in a fan shape in a side view. The tip side easily comes into contact with the surface of the object to be cleaned, and the gripping force to the surface of the object to be cleaned is generated by the convex part 5E formed radially outward on the arcuate edge 5D, and the rotation is further increased. Power can be gained.

  Further, as shown in FIG. 3A, a suction port 4b is formed so as to be positioned between the beater 6 and the roller 5, and an oscillating piece 7A is positioned above the suction port 4b. A notch 7e is formed in the swing piece 7A so as not to hinder the flow of the.

  Dust sucked from the suction port 4b located between the beater 6 and the roller 5 passes through the notch 7e formed between the pair of engaging portions 70 of the swing piece 7A located at the upper part of the suction port 4b. Since the dust is sucked into the main body side of the vacuum cleaner along the passing air flow for suction, the dust is smoothly sucked without causing pressure loss.

  In the above-described embodiment, the roller having a plurality of main ribs extending in parallel to the axial direction of the rotating body has been described. However, the main rib may be formed so as to be along the axial direction of the rotating body and rotate. It may be formed in a spiral shape so as to be wound in the radial direction of the body.

  In the embodiment described above, the example in which the reinforcing rib is configured to continuously connect the plurality of main ribs along the circumferential direction of the rotating body has been described. However, each reinforcing rib that connects the main ribs rotates. The positions may be shifted in the axial direction of the body.

  Needless to say, the specific shape, size, material, and the like of each part of the suction head for a vacuum cleaner described in the above-described embodiment can be changed as appropriate within the scope of the effects of the present invention.

1: Suction head 2: Suction head body 2A: Upper cover body 2B: Lower cover body 3: Fittings 4, 4a, 4b, 4c, 4d, 4e: Suction port 5: Main roller (roller)
5A: Rotating body 5B: Main rib 5C: Reinforcement rib 5D: Fan-shaped arc edge 5E: Convex part 6: Beater 7: Driving force transmission member 7A: Swing piece 7B: Support part 7C: Elastic member 7c, 7d: Convex part (Oscillating shaft)

Claims (5)

A suction head body having a suction port formed at the bottom, a roller projecting from the bottom so as to rotate on the object to be cleaned as the suction head body moves in the front-rear direction, and the object to be cleaned A suction head for a vacuum cleaner configured to include a beater to be driven, and a driving force transmission member that drives the beater to strike the object to be cleaned in conjunction with rotation of the roller,
The roller includes a rotating body, a plurality of main ribs extending in the radial direction along the axial direction of the rotating body, and a reinforcement that connects the plurality of main ribs along the circumferential direction of the rotating body. A suction head for a vacuum cleaner, characterized by comprising a rib.   The suction head for a vacuum cleaner according to claim 1, wherein a plurality of the reinforcing ribs are provided at predetermined intervals in the axial direction of the rotating body.   The vacuum cleaner suction according to claim 1 or 2, wherein the reinforcing rib is formed in a fan shape in a side view, and a convex portion is formed radially outward at a fan-shaped arc-shaped edge portion. head.   The driving force transmission member includes an oscillating piece that oscillates by repeatedly engaging and disengaging with the main rib as the rotating body rotates, and the beater that is linked to the oscillation of the oscillating piece. The suction head for a vacuum cleaner according to any one of claims 1 to 3, wherein the suction head is composed of a linkage member that moves up and down. The suction port is formed so as to be positioned between the beater and the roller, and the swinging piece is located at an upper portion of the suction port, and is notched so as not to hinder the suction flow of the suction head. The suction head for a vacuum cleaner according to claim 4, wherein the suction head is formed.

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