JP2008237461A - Suction tool for electric vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a disconnection by biting, damaging and so on from happening when a conductor wiring connecting from a rotary arm to a motor and so on of a suction tool because an electric vacuum cleaner does not return to the normal position but is assembled as it is. <P>SOLUTION: An arm 13 that links a pipe 6 and a suction chamber and rotates vertically, a conductor 17 that transmits the electric power from the electric vacuum cleaner body to a motor for brush rotation and so on through a hole part inside the arm 13, a rib A21 which is provided in the vicinity of an outlet of the hole part of the arm 13 and which has a ditch part 50 into which the conductor 17 which pops of the hole part of the arm 13 is inserted, and a rib B20 which is provided perpendicularly adjacent to the rib A21 are provided. In this structure, the position of the conductor 17 is controlled by the rib A21 and the rib B20 irrespective of the rotation position of the arm 13, so that there is no fear of biting the conductor 17 caused by a deficiency in assembly work, and the security problem of disconnection, damaging and so on can be solved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner suction tool.

A conventional suction tool for a vacuum cleaner of this type is generally as shown below (see, for example, Patent Document 1). That is, as shown in FIGS. 9 to 12, a suction chamber 39 that opens downward on the bottom surface of the suction tool 31, and an opening portion of the suction chamber 39 serves as a suction port 38, and the suction port 38 is rotatably provided. The rotary brush 40, the suction chamber 39 has a drive source 37 (motor) for driving the rotary brush 40, a pipe 36 provided at the rear portion of the suction tool 31 and substantially in the middle of the longitudinal direction, In a vacuum cleaner suction tool having an arm 41 for connecting the suction chamber 39 and a lead wire 35 for transmitting electric power from the main body of the vacuum cleaner to the motor, the lead wire 35 is a rib provided at a random position only in the suction chamber 39. By A33 and the rib C34, it is comprised so that it may be bent and bent. The arm 41 is sandwiched between bearing portions provided on the upper member 43 and the lower member 42 of the suction tool 31, and the arm 41 is configured to be pivotable back and forth around the arm rotation shaft 45.
JP-A-9-56646

  However, in the above conventional vacuum cleaner suction tool, the wiring process of the conductive wire depends on the work attention of the assembly operator, and the conductive wire 35 is wired between the ribs A33 as shown in FIG. Therefore, due to carelessness in the work or incomplete work by the assembling worker, the lead wire 35 is not wired at the normal position between the ribs A33 as shown in FIG. As a result of the wire 43 being assembled, the wire was broken or damaged. From the above, there are safety problems due to broken wires or damage, increased loss costs due to reassembly or replacement of other components due to broken wires, additional parts to prevent biting in and additional wires There was a problem of an increase in assembly cost and an increase in man-hours due to a routing work or a work check for checking the presence or absence of a lead wire.

  In order to solve the above-mentioned problems, the present invention provides a suction chamber that is composed of an upper member and a lower member and has a bottom surface that opens downward, and an opening portion of the suction chamber that serves as a suction port. A rotary brush, a motor provided in the suction chamber for driving the rotary brush, a pipe provided in the vicinity of the middle of the suction tool at the rear part of the suction tool, the pipe and the suction chamber And an arm that pivots in the vertical direction by being sandwiched between the upper member and the lower member, a conductor that transmits electric power from a vacuum cleaner body to the motor through the pivoting arm, and A hole provided in the arm through which the conducting wire passes, and a groove provided in the vicinity of the suction tool side outlet of the hole of the arm in the upper member or the lower member, into which the conductor protruding from the hole of the arm is inserted. Rib A and the And a rib B provided adjacent to the rib A in a direction perpendicular to the rib A, and the rib A and the rib B allow the hole portion of the arm to be used regardless of the rotation position of the arm. In the configuration that regulates the position of the conducting wire in the vicinity of the outlet, as shown in FIGS. 6 and 7, the rib can be regulated so that the conducting wire does not go to a place other than the normal position within the range in which the arm rotates. There is no risk of biting of the conductor due to problems in assembly work, there is no safety problem due to disconnection or damage of the conductor, there is no loss cost caused by reassembly or replacement of other parts due to disconnection of the conductor, and As a result, additional parts are added to prevent the lead wire from getting caught, the lead wire is routed, or the work check is performed to check whether the lead wire is caught. Succoth is possible.

  The vacuum cleaner suction tool of the present invention can regulate the position of the lead wire protruding from the end surface of the arm regardless of the rotation of the arm, can prevent setting at a position other than the normal position, and can bite the lead wire due to problems in assembly work. There are no safety problems due to wire breakage or damage, there is no loss cost due to reassembly due to wire failure or replacement of other parts due to wire breakage, and another measure for preventing wire jamming It is possible to eliminate an increase in assembly cost and an increase in man-hours by adding parts, routing the conductor, or checking the work for checking whether the conductor is caught.

  A first invention includes a suction chamber composed of an upper member and a lower member and having a bottom surface opened downward, and a rotary brush rotatably supported by the suction port with the opening of the suction chamber as a suction port. A motor that is provided in the suction chamber and drives the rotary brush, a pipe that is provided near the middle of the suction tool at a rear portion of the suction tool, the pipe and the suction chamber, An arm that rotates in the vertical direction by being sandwiched between the upper member and the lower member, a conductive wire that transmits electric power from a vacuum cleaner body to the motor through the rotating arm, and provided in the arm. A hole A through which the conducting wire passes, and a rib A having a groove for inserting a conducting wire protruding from the hole of the arm, provided in the vicinity of a suction tool side outlet of the hole of the arm in the upper member or the lower member; In the rotating arm A rib B provided adjacent to the rib A and in a direction perpendicular to the rib A, and the rib A and the rib B allow the vicinity of the hole exit of the arm regardless of the rotation position of the arm. Constructed to regulate the position of the lead wire, there is no risk of biting of the lead wire due to trouble in assembly work, there is no safety problem due to lead wire breakage or scratching, due to reassembly or lead wire breakage due to lead wire failure There is no loss cost due to replacement of other parts. In addition, it eliminates the increase in assembly cost and the number of man-hours due to the addition of other parts to prevent the lead-in and the lead-out work, or the work check for checking the presence or absence of the lead-in. It becomes possible.

  In the second invention, the rib B of the first invention is configured to be adjacent to the end face of the groove portion of the rib A, and a conducting wire can be easily wired to the rib A and the rib B. This eliminates the risk of the lead wires being bitten by the above-mentioned problem, and in addition to the effects of the first invention, the assemblability is further improved.

  The third invention is a straight line or a curved line so that the rib B of the first or second invention does not compress the cross-sectional shape of the conducting wire inserted into the groove portion of the rib A when the arm rotates. The wall surface of the rib B provided on the arm and the rib A provided on the upper member or the lower member can be made substantially flush with each other at all rotational positions of the arm. In addition to the effect of the invention of 2, the lead wire inserted into the groove portion of the rib A during arm rotation can be prevented from being pressed by the rib B to protect the lead wire, and the quality can be further improved.

(Embodiment 1)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. 1 is a plan view with the upper member of the suction tool of the present invention removed, FIG. 2 is an enlarged plan view of a conductor wiring portion of the suction tool of FIG. 1, FIG. 3 is a sectional view of the suction tool, and FIG. FIG. 5 is a plan view of a state in which the pipe and the arm part are connected, and FIG. 6 is a view of the suction tool. FIG. 7 is a perspective view of the arm in a normal position with the upper member B removed, FIG. 7 is a perspective view when the arm is turned upward by θ degrees from the state of FIG. 6, and FIG. It is a whole perspective view of a vacuum cleaner.

  1 to 8, reference numeral 1 denotes a suction tool, and the vacuum cleaner suction tool 1 is connected to the vacuum cleaner 2 through a hose 3 and an extension pipe 4. The inside of the hose 3 and the extension pipe 4 is hollow, and the internal air is sucked and discharged by the electric blower 5 arranged behind the vacuum cleaner 2 to be in a vacuum state and negative pressure is applied. A suction wind is generated.

  A pipe 6 that is rotatably held in the front-rear direction or the left-right direction is installed in the rear portion of the vacuum cleaner suction tool 1 in the front-rear direction, and in the vicinity of the approximate center. The pipe 6 includes a hollow pipe portion 6 a and an upper member B 6 b, and one of the pipes 6 is connected to the electric cleaner 5 through the extension pipe 4 or the hose 3. The other is connected to the arm 13 by a stopper 14, and the opening of the arm opposite to the pipe 6 and the connection side is used as the suction port 7. The pipe 6 is configured to be rotatable about 180 degrees to the left and right with respect to the central axis of the arm 13. The arm 13 is sandwiched between bearings provided on the upper member 15 and the lower member 16 of the suction tool 1, and the arm 13 is configured to be pivotable back and forth.

  On the other hand, the bottom surface of the vacuum cleaner suction tool 1 has a suction port 8 that opens downward, connects the suction port 8 and the suction port 7, and the space formed inside the vacuum cleaner suction tool 1 serves as a suction chamber. 9 is configured.

  Inside the suction chamber 9, there is provided a rotating brush 10 that faces the suction port 8 and is rotatably supported at a position reaching the front wall inside the suction chamber 9. The rotating brush 10 is configured so as to be rotated by being transmitted with power by a drive source 11 configured on the left or right side where the pipe 6 is installed or coaxially. In general, when the drive source 11 is arranged on either the left or right side of the pipe 6, the rotary brush 10 and the drive source 11 are stretched by a belt 12. In general, an electric motor (motor), a turbine, or the like is used as the drive source 11, and a motor is used in the present invention. The electric power for driving the drive source 11 passes from the vacuum cleaner 2 through the hose 3 and the lead wire (not shown) in the extension pipe 4, the lead wire 17 in the vacuum cleaner suction tool 1, the control board 18, and the lead wire B19. Supplied. Here, the conducting wire 17 is configured to be wired inside the pipe 6, the arm 13, and the lower member 16 and reach the control board 18. In order to regulate the position of the conducting wire 17, the arm 13 is provided with a hole 24 on the side through which the conducting wire 17 passes, and the rib B 20 and the lower member 16 are provided with ribs A 21, ribs C 22, Ribs D23 are provided. The wall surfaces of the rib B20, the rib A21, the rib C22, and the rib D23 are arranged to be the same surface. In particular, the rib B20 is composed of a plurality of straight lines and curves so as to be flush with the wall surface of the groove A21 at all the pivot positions of the arm 13. Further, the rib B20 has a stepped shape with respect to the appearance surface of the arm 13. The rib A21 includes a substantially U-shaped groove portion 50 into which the conducting wire 17 is inserted.

  When the electric vacuum cleaner 2 is operated, the electric blower 5 moves, sucks in air in front of the electric blower 5, and discharges backward to generate a vacuum and generate a suction air by applying negative pressure. This negative pressure is transmitted to the vacuum cleaner suction tool 1 through the hose 3 and the extension pipe 4. The generated negative pressure becomes suction air in the vacuum cleaner suction tool 1 and can suck dust on the surface to be cleaned.

  The negative pressure is first transmitted through the pipe 6 to the suction port 7 through the suction port 8. Mainly dust is collected from the suction port 7.

  When the drive source 11 is an electric motor, the rotary brush 10 can be rotated by receiving power from the vacuum cleaner 2. In the case of a turbine, the turbine is driven by suction air generated by negative pressure, and the power is transmitted. The rotating brush 10 rotates to scrape the surface to be cleaned by mechanical force and apply a polishing operation to collect dust. Dust collected by the rotating brush 10 is sucked through the suction chamber 9.

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

  The vacuum cleaner suction tool 1 has a suction chamber 9 having a bottom surface formed by an upper member 15 or a lower member 16 opened downward, and an opening portion of the suction chamber 9 as a suction port 8. The suction port 8 is rotatable. The rotary brush 10 supported by the shaft, the motor serving as the drive source 11 for driving the rotary brush 10 in the suction chamber 9, and the rear portion of the vacuum cleaner suction tool 1 are provided in the vicinity of approximately the center in the longitudinal direction. The pipe 6, the pipe 6 and the suction chamber 9 are connected to each other, the arm 13 that rotates in the vertical direction by being sandwiched between the upper member 15 and the lower member 16, and the electric power from the main body of the vacuum cleaner 2 is the drive source 11. A rib A21 having a conducting wire 17 to be transmitted to the motor and wiring the conducting wire 17 to the upper member 15 or the lower member 16, a hole 24 through which the conducting wire 17 passes through the arm 13, and a rib A21 near the outlet of the hole 24 Providing rib B20 on the arm 13 near Thus, the position of the conductor 17 from the arm 13 portion is regulated at all the rotational positions of the arm 13. When assembling a unit component in which the pipe 6, the arm 13, and the conductor 17 are assembled to the lower member 16, the conductor Since the position of 17 is regulated by the rib B20, the conducting wire 17 does not move to the position as shown in FIG. 12, but can enter the normal position between the ribs A21. Therefore, there is no risk of the lead wire 17 being caught due to a trouble in assembly work, there is no safety problem due to the lead wire 17 breakage or scratching, and reassembly due to the lead wire 17 failure or other part replacement due to the lead wire 17 breakage occurs. In addition, there is no loss cost, and it is possible to eliminate an increase in assembly costs and man-hours by adding another part to prevent the lead 17 from being caught, routing the lead 17 or checking the presence of the lead 17 being checked. It becomes possible.

  The rib B20 provided on the arm 13 has a parallel positional relationship with respect to the rib A21 conductor wiring surface, and a unit component in which the pipe 6, the arm 13, and the conductor 17 are combined with the lower member 16 is inserted from above. Since the rib B20 and the rib A21 conductor wiring surface are parallel when assembled, the rib B20 serves as a guide for the conductor 17 wiring, and the conductor 17 does not move to the position as shown in FIG. It is possible to easily wire to the normal position. Furthermore, the position of the conductor 17 on the opposite side can be restricted by the rib C22 and the rib D23, and the conductor 17 can be more easily wired at the normal position. Therefore, there is no risk of the lead wire 17 being caught due to a trouble in assembly work, there is no safety problem due to the lead wire 17 breakage or scratching, and reassembly due to the lead wire 17 failure or other part replacement due to the lead wire 17 breakage occurs. In addition, there is no loss cost, and it is possible to eliminate an increase in assembly cost and man-hours by adding another part to prevent the lead 17 from being caught, routing the lead 17 or checking the lead 17 to check whether the lead 17 is caught. It becomes possible.

  Further, the rib B20 provided on the arm 13 has a plurality of straight lines such that the wall surface of the rib B20 provided on the arm 13 and the wall surface of the rib A21 provided on the upper member 15 or the lower member 16 are flush with each other at all rotational positions of the arm 13. The rib B20 is formed even if the unit part is inclined to some extent when the unit part in which the pipe 6, the arm 13 and the conductive wire 17 are combined into the lower member 16 is assembled from the upper direction. The conductor 17 can serve as a guide for wiring the conductor 17, and there is no risk of the rib B 20 being damaged or pinched by the rib B 20 when the arm is fully rotated. Therefore, there is no risk of the lead wire 17 being caught due to a failure in normal use in assembly work, there is no safety problem due to the wire 17 breakage or scratching, and reassembly due to a failure of the wire 17 or wire breakage of the lead wire 17 is caused by other factors. There is no loss cost due to parts replacement. Furthermore, additional parts are added to prevent the lead 17 from being caught, the lead 17 is routed, or an assembly cost is increased due to a work check for checking whether the lead 17 is caught. Can be eliminated.

  The rib B20 provided on the arm 13 has a stepped shape with respect to the external surface of the arm 13, and a gap is provided between the rib B20 and the lower member 16 constituting the suction chamber 9 in the stepped shape. Thus, it is possible to prevent an increase in sliding resistance due to foreign matter adhesion and intrusion. Therefore, it is possible to prevent an increase in the rotational force of the pipe 6 and the arm 13 due to foreign matter adhesion and intrusion.

  As described above, the vacuum cleaner suction tool according to the present invention eliminates the risk of the biting of the lead wire due to problems in assembly work, can solve the safety problem due to the wire breakage, scratching, etc., and is also rotatable. It can be widely applied to electrical equipment products that have pipes and arms and wire conductors inside.

The top view of the state which removed the upper member of the suction tool for vacuum cleaners in Embodiment 1 of this invention The top view of the state which expanded the lead-wire wiring location of the suction tool for vacuum cleaners of FIG. Cross-sectional view of the vacuum cleaner suction tool Side view of a state in which the pipe and the arm constituting the vacuum cleaner suction tool are connected The top view of the state which removed the upper member B which comprises the suction tool for vacuum cleaners, and the pipe and the arm part connected The perspective view of the arm normal position in the state which removed the upper member which constitutes the suction tool for electric vacuum cleaners FIG. 6 is a perspective view showing a state in which the arm is turned upward by θ degrees from the state shown in FIG. Whole perspective view of the vacuum cleaner equipped with the vacuum cleaner suction tool Side view of a state in which the pipe and the arm constituting the conventional vacuum cleaner suction tool are connected The top view of the state which removed the upper member of the suction tool for conventional vacuum cleaners In the conventional vacuum cleaner suction tool, the arm in a state where the conductor is wired at a normal position is a cross-sectional perspective view of the main part of the normal position In the conventional vacuum cleaner suction tool, the arm in a state where the conductor is wired at an irregular position is a cross-sectional perspective view of the main part of the normal position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner suction tool 6 Pipe 8 Suction port 9 Suction chamber 13 Arm 16 Lower member 17 Conductor 20 Rib B
21 Rib A
24 holes

Claims (3)

A suction chamber composed of an upper member and a lower member and having a bottom surface opened downward; a rotary brush rotatably supported by the suction port with the opening of the suction chamber as a suction port; and provided in the suction chamber A motor that drives the rotating brush, a pipe provided in the vicinity of the middle of the suction tool at the rear part of the suction tool, the pipe and the suction chamber, and the upper member and the lower member. An arm that pivots in the vertical direction by being sandwiched between, a conductor that transmits electric power from a vacuum cleaner body to the motor through the pivoting arm, and a hole that is provided in the arm and passes the conductor And a rib A having a groove for inserting a lead wire protruding from the hole of the arm, provided in the vicinity of the suction tool side outlet of the hole of the arm in the upper member or the lower member, and the rotating arm Next to rib A A rib B provided in a direction orthogonal to the rib A, and the rib A and the rib B regulate the position of the conductor near the hole outlet of the arm regardless of the rotation position of the arm. A vacuum cleaner suction tool. The vacuum cleaner suction tool according to claim 1, wherein the rib B is configured to be adjacent to the end face of the groove portion of the rib A. The electric cleaning according to claim 1 or 2, wherein the rib B has a cross-sectional shape that is a combination of straight lines or curves so that the conductor inserted into the groove portion of the rib A is not pressed when the arm rotates. Air suction tool.

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