JPH11244204A - Suction tool for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve usability, and improve mobility of a suction tool main body by providing a suction tool with a main body having a suction opening in the under surface, a rotary pipe rotatably disposed in the main body rear part and caster rollers arranged on both sides of the rotary pipe of the main body. SOLUTION: A suction port 7 is formed in the bottom surface of a suction tool main body 1, a rotary brush housing chamber is formed in the main body 1, and a rotary brush 9 is rotatably housed in a rotary brush chamber in a state of facing to the suction port 7. Caster rollers 27 are composed of a cross- sectional U-shaped receiving plate rotatably installed on a shaft inserted into the bearing part formed in the swelling part 36 and a support member which is installed on the shaft in a state of being opposed to the receiving plate and rotatably journals wheels. The caster rollers 27 are arranged on the approx. axis of a rotary shaft of a rotary pipe 5, that is, on both sides of a position of applying force most at forward moving time of the suction tool main body 1 so that force is easily applied to the caster rollers 27 at moving time to further improve mobility.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor suction tool used in connection with a vacuum cleaner or the like.

[0002]

2. Description of the Related Art Conventionally, a floor suction device is connected to a vacuum cleaner through a hose or an extension pipe, and a user grips an operation handle formed at an end of the hose, and moves the floor suction device forward and backward. In order to improve the mobility of the floor suction device, it is common to arrange wheels that are rotatable in the front-rear direction on the bottom surface of the floor suction device. .

[0003] However, when the floor suction tool is moved in the left and right direction along the wall or furniture during cleaning, for example, when cleaning around a wall or around furniture, the mobility of the floor suction tool is poor. was there.

In view of this drawback, Japanese Patent Application Laid-Open No. H4-117932 (A
As shown in 47L 9/02) and the like, a device in which a caster is arranged on the bottom surface of a suction tool body has been proposed.

However, normally, when cleaning is performed, the dust in front of the suction tool body is sucked while moving the suction tool body forward, so that when the suction tool body is moved forward, the front of the suction tool body becomes dusty. Although it comes into contact, the caster roller is located on the front bottom surface of the suction tool body, and when the suction tool body moves forward, dust directly hits the caster roller. There is a possibility that the rotation property is deteriorated and the mobility of the suction tool main body is reduced.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a floor suction tool capable of improving mobility.

[0007]

A first means of the present invention is as follows.
A suction tool main body having a suction opening on a lower surface, a rotary pipe rotatably disposed at a rear portion of the suction tool main body, and caster rollers disposed on both sides of the rotary pipe of the suction tool main body. It is characterized by.

[0008] A second means of the present invention comprises a suction device main body having a suction opening on a lower surface, a rotary tube rotatably disposed at a rear portion of the suction device main body, and a rotary tube of the suction device main body. On both sides, a caster roller is provided which is disposed substantially on the axis of the rotation axis of the rotation tube.

According to a third aspect of the present invention, there is provided a suction tool main body having a suction opening on a lower surface, a rotary pipe rotatably disposed at a rear portion of the suction tool main body, and a rotary pipe of the suction tool main body. A bulge formed on both sides and a caster roller disposed on the lower surface of the bulge are provided.

According to a fourth aspect of the present invention, there is provided a suction tool main body having a suction opening on a lower surface, a rotary pipe rotatably disposed at a rear portion of the suction tool main body, and a suction pipe disposed at a rear portion of the suction tool main body. A caster roller, wherein the caster roller has a shaft supported by the suction tool body, a receiving plate disposed on the shaft, and a support member rotatably disposed on the shaft and supporting wheels. It is composed of a ball sandwiched between the receiving plate and a supporting member, and the supporting member or the receiving plate is formed with a ring-shaped concave portion for arranging the ball,
The ball is arranged on the entire circumference of the recess.

According to a fifth aspect of the present invention, there is provided a suction tool main body having a suction opening on a lower surface, a rotary pipe rotatably disposed at a rear portion of the suction tool main body, and a suction pipe disposed at a rear portion of the suction tool main body. A caster roller, the caster roller having a shaft supported by the suction tool main body, a receiving plate rotatably disposed on the shaft, and a support rotatably disposed on the shaft and supporting wheels. And a ball sandwiched between the receiving plate and the supporting member. The supporting member or the receiving plate has a ring-shaped recess for arranging the ball, and supports the receiving plate. It is characterized in that it has a larger diameter than the member.

A sixth aspect of the present invention is a suction tool main body having a suction opening on a lower surface, a rotary pipe rotatably disposed at a rear portion of the suction tool main body, and a rotary pipe of the suction tool book. A caster roller disposed on both sides, the caster roller having a shaft supported by the suction tool body, a receiving plate rotatably disposed on the shaft, and a wheel rotatably disposed on the shaft. And a ball sandwiched between the receiving plate and the supporting member, and the supporting member or the receiving plate is formed with a ring-shaped recess for disposing the ball, The receiving plate is formed larger in diameter than the supporting member.

It is desirable that at least one of the receiving plate and the supporting member is formed of a low friction resistance material.

[0014]

Embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a suction tool main body, an upper case 2, a lower case 3, a lid 4 removably engaged with the upper case 2 and the lower case 3, and a vertically movable member between the upper and lower cases 2, 3. It is composed of a rotating pipe 5 supported and a joint pipe 6 rotatably supported by the rotating pipe 5.

Reference numeral 7 denotes a suction port formed in the bottom surface of the suction tool main body 1, and reference numeral 8 denotes a rotary brush storage chamber formed in the suction tool main body 1.

Reference numeral 9 denotes a rotary brush rotatably stored in the rotary brush storage chamber 8 in a state facing the suction port 7,
The rotating brush 9 includes a core body 10 and a pair of brush bodies inserted and mounted on a base 12 in a spiral groove 11 formed in the core body 10.
13, and a pair of blades 15 that are mounted by inserting a base 14 into the spiral groove 11 of the core body 10.

The blade 15 comprises a cloth 16 and the cloth
Base made of synthetic resin molded at 16 ends
14 and a brush-like body 17 sewn to an end of the cloth-like body 16
By forming the base 14 on the cloth-like body 16, the end of the cloth-like body 16 is deformed so as to be wavy, and further, the brush-like body 17 is sewn to the end of the cloth-like body 16. As a result, the cloth 16 is bent as if pulled.

Reference numeral 18 denotes a guide port formed on the upper surface of the lid 4 and is formed over substantially the entire width of the brush body 13 and the blade 15 of the rotary brush 9. Reference numeral 19 denotes a first rib formed on the front side of the guide port 18, and constitutes a guide for guiding outside air sucked from the guide port 18 to the brush body 13 and the blade 15 of the rotating brush 9. The first rib 19 is formed so as to hang down from the rear surface of the lid 4 at a position closer to the rotation center of the rotating brush 9 than the foremost position of the rotation trajectory of the blade 15 and is located within the projection range of the rotation trajectory. It extends below the highest position of the 13 rotation trajectories.

Reference numeral 20 denotes a second rib formed on the rear side of the guide port 18 and serves to rotate the outside air sucked from the guide port 18 to the rotating brush 9.
Of the brush body 13 and the blade 15 are formed. The second rib 20 extends forward from the center of rotation of the rotating brush 9, and a discharge port 21 is formed between the tip of the first rib 19 and the second rib 20.

The first rib 19 is formed so as to hang down from the foremost position of the rotation trajectory of the blade 15 to a position on the rotation center side of the rotating brush 9 and extend below the highest position of the rotation trajectory of the brush body 13. Therefore, the outside air sucked from the discharge port 21 does not collide with the brush
Of the rotating brush 9 can be efficiently driven by rotating the rotating brush 9 efficiently.

The second rib 20 extends forward from the rotation center of the rotating brush 9 toward the brush body 13 and the blade 15, so that the outside air sucked from the discharge port 21 can remove the outside air from the brush body 13 and the blade 15. The rotation brush 9 can be prevented from being directly sucked into the rotating pipe 5 by passing over the rotary brush 9 without contacting the blade 15, and can be reliably guided to the brush body 13 and the blade 15. It can be driven to rotate efficiently.

As shown in FIG. 12, the blade 15 is curved rearward in the rotation direction of the rotating brush 9 when the rotation of the rotating brush 9 is stopped or in a low-speed rotation state. When rotated, the blade 15 is erected by the centrifugal force as shown in FIGS.

Reference numeral 22 denotes a cover attached to the lid 4 by a locking claw 23, which covers the upper portion of the discharge port 21 so that the discharge port 21 is not directly visible from outside. The first rib 19,
An intake path 24 is formed between the second rib 20 and the cover body 22, and the intake path 24 is configured to gradually narrow in width from the guide port 18 toward the discharge port 21.

Reference numeral 25 denotes a front wheel mounted on a shaft support (not shown) formed on both sides of the suction tool main body 1, and has a diameter substantially equal to the outer diameter of the suction tool main body 1. Reference numeral 26 denotes a suction keeper disposed before and after the suction port 7, which is made of a flexible material such as soft rubber, and the suction keeper 26 improves the deep suction force.

Reference numeral 36 denotes a bulge formed on both sides of the rotary pipe 5 at the rear of the suction tool main body 1. A caster roller 27 is rotatably supported on the lower surface of the bulge 36. The caster roller 27 is disposed substantially on the axis of the rotation axis of the rotation pipe 5.

The caster roller 27 is provided at the bulging portion.
A shaft 29 inserted into a bearing portion 28 formed in 36, a substantially U-shaped receiving plate rotatably mounted on the shaft 29, and mounted on the shaft 29 in a state facing the receiving plate 30; And a support member 32 that rotatably supports the wheel 31.

Reference numeral 33 denotes a ring-shaped concave portion formed on the outer peripheral portion of the upper surface of the support member 32. A ball 34 is arranged over the entire circumference of the concave portion 33, and the ball 34 is placed between the concave portion 33 and the receiving plate 30. It is pinched by.

The receiving plate 30 is provided with a washer provided on the shaft 29.
It is positioned at 35, and is formed in a substantially U-shaped cross section, and covers the upper outer periphery of the support member 32 with the flange portion 30a, so that dust and the like enter between the receiving plate 30 and the support member 32. To prevent the rotation of the ball 34 and maintain the support plate of the support member 32.
It is designed to prevent a decrease in the rotation performance with respect to 30.

The receiving plate 30 and the supporting member 32 are made of a resin such as nylon having a relatively low frictional resistance, and the ball 34 is made of a resin such as nylon or a metal such as iron. By using a resin such as nylon having a relatively low frictional resistance, the receiving plate 30 and the support member 32 can be formed.
Can be further improved.

According to the above configuration, when the suction tool main body 1 is moved, the support member 32 rotates with respect to the receiving plate 30 via the ball 34 by the contact of the wheels 31 with the floor surface, and the suction tool main body 1 is moved. In either direction, the support member 32 easily rotates, the direction of the rotation axis of the wheel 31 changes, and the rotation of the wheel 31 can improve the mobility of the suction tool main body 1, so that it can be used near a wall or furniture. When cleaning, the suction tool main body 1 extends along the contact surface of the suction tool main body 1.
Can be easily moved and usability can be improved.

Since the caster roller 27 is disposed at the rear of the suction tool main body 1, dust and the like do not directly contact the caster roller 27 when the suction tool main body 1 is moved forward. Inconveniences such as dust entering between the wheel 31 and the support member 32 can be prevented.

When the suction tool main body 1 is pulled, the rear part of the suction tool main body 1 is slightly lifted up, and the rotating pipe 5 of the suction tool main body 1 is lifted.
The caster rollers 27 provided on both sides slightly float from the floor surface, making it difficult for the caster rollers 27 to directly touch the dust, thereby preventing a decrease in rotation due to the dust being caught in the caster rollers 27.

The caster roller 27 is connected to the rotating pipe 5
Are arranged substantially on the axis of the rotating shaft of the suction tool main body 1, that is, on both sides of the position where the force is most applied when the suction tool main body 1 moves forward. Can be improved.

Further, the caster roller 27 is disposed on the lower surface of the bulging portion 36 formed at the rear of the suction tool main body 1, and when the suction tool main body 1 is pulled out during cleaning, the swelling portion 36 is formed. The impact on the caster roller 27 due to contact with furniture or the like is reduced, and damage to the caster roller 27 can be prevented.

A ring-shaped concave portion 33 is formed on the upper surface of the support member 32, and a ball 34 is disposed around the entire circumference of the concave portion 33. Thus, the support member 32 and the receiving plate 30 come into contact with each other in a ring shape. The backlash of the member 32 can be prevented, and the support member 32
, And can be used smoothly.

The receiving plate 30 is rotatably attached to the shaft 29, and the outermost diameter of the receiving plate 30, that is, the outer diameter of the flange portion 30a is formed larger than that of the support member 32. When the caster roller 27 disposed at the rear of the suction tool body 1 comes into contact with a corner of furniture, for example, when the suction tool body 1 is pulled,
Since the receiving plate 30 is rotated to avoid the suction tool main body 1 against furniture or the like, the mobility of the suction tool main body 1 can be further improved.

[0038]

According to the first aspect of the present invention, by disposing the caster rollers on both sides of the rotating pipe at the rear part of the suction device main body, the mobility of the suction device main body can be changed in any direction. When it is easy to move the suction tool body along the contact surface of the suction tool body, such as when cleaning the wall or furniture, the usability can be improved, and the suction tool body is moved forward In addition, since dust does not directly contact the caster rollers, it is possible to prevent inconveniences such as dust from biting into the caster rollers and to improve the mobility of the suction tool body.

Further, since the caster rollers are arranged on both sides of the rotary pipe of the suction device main body, that is, on both sides of the position where the force is most applied when the suction device main body is moved forward, the caster rollers are attached to the caster roller when the suction device main body is moved. The force is easily applied, and the mobility can be further improved.

According to the second aspect of the present invention, by disposing the caster rollers on both sides of the rotating pipe at the rear part of the suction device main body, the mobility of the suction device main body can be improved regardless of the direction in which the suction device main body is moved. It is easy to move the suction tool body along the contact surface of the suction tool body, such as when cleaning the wall or furniture, and it is possible to improve the usability, and when the suction tool body is moved forward, Since dust and the like do not directly contact the caster roller, it is possible to prevent inconvenience such as dust from biting into the caster roller and to improve the mobility of the suction tool body.

In addition, the caster rollers are disposed substantially on the axis of the rotation axis of the rotary pipe on both sides of the rotary pipe of the suction tool main body, that is, on both sides of the position where the most force is applied when the suction tool main body moves forward. As a result, the force is easily applied by the caster roller when the suction tool body moves, and the mobility can be further improved.

According to the third aspect of the present invention, by arranging the caster rollers on the suction tool main body, the mobility of the suction tool main body can be improved regardless of the direction of movement of the suction tool main body, and the wall and furniture can be improved. When cleaning the case, it is easy to move the suction tool main body along the contact surface of the suction tool main body, and the usability can be improved, and the caster rollers are formed on both sides of the rotating pipe at the rear part of the suction tool main body. Because it is located on the bottom of the bulging part, when the suction tool body is moved forward,
Since dust does not directly contact the caster roller, it is possible to prevent inconvenience such as dust from being caught in the caster roller, to improve the mobility of the suction tool body, and to pull the suction tool body during cleaning, etc. In addition, the inconvenience such that the caster roller is damaged due to the bulging portion abutting on a corner of furniture or the like can be solved.

Further, since the caster rollers are disposed on both sides of the rotary pipe of the suction device main body, that is, on both sides of the position where the force is most applied when the suction device main body is moved forward, the caster rollers are disposed on the caster roller when the suction device main body is moved. The force is easily applied, and the mobility can be further improved.

According to the fourth aspect of the present invention, by disposing the caster rollers at the rear portion of the suction tool main body, the mobility of the suction tool main body can be improved regardless of the direction in which the suction tool main body is moved, and the wall or furniture can be improved. It is easy to move the suction tool body along the contact surface of the suction tool body when cleaning, etc., and it is possible to improve usability, and when the suction tool body is moved forward, dust etc. are directly caster Since it does not come into contact with the roller, it is possible to prevent inconvenience such as dust from biting into the caster roller and to improve the mobility of the suction tool main body.

Further, in the caster roller, since the balls are arranged in a ring shape between the receiving plate and the supporting member, the receiving plate and the supporting member come into contact with each other in a ring shape, so that it is possible to prevent the supporting member from rattling. The member rotates smoothly with respect to the receiving plate, and usability can be further improved.

According to the fifth aspect of the present invention, by disposing the caster rollers at the rear portion of the suction tool main body, the mobility of the suction tool main body can be improved regardless of the direction in which the suction tool main body is moved, and the wall or furniture can be improved. It is easy to move the suction tool body along the contact surface of the suction tool body when cleaning, etc., and it is possible to improve usability, and when the suction tool body is moved forward, dust etc. are directly caster Since it does not come into contact with the roller, it is possible to prevent inconvenience such as dust from biting into the caster roller and to improve the mobility of the suction tool main body.

Further, the receiving plate is disposed rotatably with respect to the shaft, and the receiving plate is formed to have a diameter larger than that of the supporting member so that the suction device can be sucked when the suction tool main body is pulled during cleaning. When the caster roller arranged at the rear of the tool body comes into contact with a corner of furniture or the like, the receiving plate rotates to avoid the suction tool body with respect to furniture or the like, so that the mobility of the suction tool body can be further improved.

According to the sixth aspect of the present invention, by disposing the caster rollers on the suction tool main body, the mobility of the suction tool main body can be improved regardless of the direction in which the suction tool main body is moved. When cleaning, for example, the suction tool main body is easily moved along the contact surface of the suction tool main body, and usability can be improved.

Further, since the caster rollers are disposed on both sides of the rotating pipe provided at the rear of the suction device main body, when the suction device main body is moved forward, dust and the like directly contact the caster rollers. Since there is no such problem, it is possible to prevent inconvenience such as dust from being caught between the wheel and the support member, and to prevent a decrease in the mobility of the suction tool main body.

Further, since the caster rollers are arranged on both sides of the rotary pipe on the bottom surface of the suction device main body, that is, on both sides of the position where the force is most applied when the suction device main body moves forward, the caster rollers are moved when the suction device main body moves. The force is easily applied to, and the mobility can be further improved.

The receiving plate is disposed rotatably with respect to the shaft, and the receiving plate is formed to have a diameter larger than that of the supporting member, so that when the suction tool main body is pulled during cleaning or the like, the suction plate is sucked. When the caster roller arranged at the rear of the tool body comes into contact with a corner of furniture or the like, the receiving plate rotates to avoid the suction tool body with respect to furniture or the like, so that the mobility of the suction tool body can be further improved.

According to the seventh aspect of the present invention, at least one of the receiving plate and the supporting member is formed of a low friction resistance material, so that the rotation of the supporting member with respect to the receiving plate can be further improved and the usability can be improved. Can be improved.

[Brief description of the drawings]

FIG. 1 is a bottom view of a suction tool main body showing an embodiment of the present invention.

FIG. 2 is a top view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a sectional view of the same.

FIG. 5 is a sectional view of the main part.

FIG. 6 is a side view of the caster roller.

FIG. 7 is a sectional view of the same.

FIG. 8 is a side view of a state where the caster roller is rotated 90 degrees from the state of FIG.

FIG. 9 is a sectional view of the same.

FIG. 10 is a bottom view of the caster roller.

FIG. 11 is a top view of the caster roller with a receiving plate removed.

FIG. 12 is a cross-sectional view showing a state in which the rotary brush stops rotating.

FIG. 13 is a sectional view showing a rotating state of the rotating brush.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction tool main body 5 Rotating pipe 7 Suction port (suction opening) 27 Caster roller 29 Axis 30 Receiving plate 31 Wheel 32 Support member 34 Ball 36 Swelling part

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Akihiko Shirota 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (7)

[Claims] 1. A suction tool main body having a suction opening on a lower surface,
A floor suction tool comprising: a rotary pipe rotatably disposed at a rear portion of the suction tool main body; and caster rollers disposed on both sides of the rotary pipe of the suction tool main body. 2. A suction tool main body having a suction opening on a lower surface,
A rotating pipe disposed rotatably at a rear portion of the suction tool main body, and caster rollers disposed on substantially both sides of the rotation pipe of the suction tool main body and substantially on an axis of a rotation axis of the rotation pipe. A floor suction tool. 3. A suction tool main body having a suction opening on a lower surface,
A rotating pipe rotatably disposed at the rear of the suction tool main body, bulging portions formed on both sides of the rotating pipe of the suction tool main body, and caster rollers disposed on the lower surface of the bulging portion. A floor suction tool comprising: 4. A suction tool main body having a suction opening on a lower surface,
A rotating pipe rotatably disposed at a rear portion of the suction device main body, and a caster roller disposed at the rear portion of the suction device main body, wherein the caster roller includes a shaft supported by the suction device main body; A receiving plate disposed on a shaft, a supporting member rotatably disposed on the shaft and supporting wheels, and a ball sandwiched between the receiving plate and the supporting member, wherein the supporting member or A floor suction device, wherein a ring-shaped recess for arranging the ball is formed in the receiving plate, and the ball is arranged on the entire circumference of the recess. 5. A suction tool main body having a suction opening on a lower surface,
A rotating pipe rotatably disposed at a rear portion of the suction device main body, and a caster roller disposed at a rear portion of the suction device main body, wherein the caster roller includes a shaft supported by the suction device main body; A receiving plate rotatably disposed on the shaft, a supporting member rotatably disposed on the shaft and supporting wheels, and a ball sandwiched between the receiving plate and the supporting member; A floor suction tool, wherein a ring-shaped concave portion in which the ball is arranged is formed in the support member or the receiving plate, and the receiving plate is formed to have a larger diameter than the supporting member. 6. A suction tool main body having a suction opening on a lower surface,
The suction device includes a rotating pipe rotatably disposed at a rear portion of the suction tool main body, and caster rollers disposed on both sides of the suction pipe of the suction tool main body. The caster roller is supported by the suction tool main body. A shaft, a receiving plate rotatably disposed on the shaft,
A support member rotatably mounted on the shaft and supporting a wheel; and a ball sandwiched between the receiving plate and the supporting member. The ball is disposed on the supporting member or the receiving plate. A floor suction tool, wherein a ring-shaped recess is formed, and the receiving plate is formed to have a larger diameter than a support member. 7. The floor suction tool according to claim 4, wherein at least one of the receiving plate and the support member is formed of a low friction resistance material.