JPS6036210Y2 - vacuum cleaner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vacuum cleaner in which a grip switch is provided as a remote control switch on a grip portion at the end of the hose, thereby improving usability.

Conventional remote control switches are mainly composed of slide switches1. Therefore, when controlling the drive of the electric blower installed in the vacuum cleaner body, the grip operation and the on/off operation of the switch are completely separate. This has the drawback that the operation is very cumbersome.

The present invention has been devised in view of the above points, and aims to provide a vacuum cleaner equipped with an easy-to-operate grip switch.An embodiment of the present invention will be described below with reference to the drawings. Explain in detail.

Figure 1 is an external view of the vacuum cleaner of the present invention, where 1 is a vacuum cleaner body with an electric blower, 2 is a hose whose one end is connected to the suction port of the vacuum cleaner body 1, and the other end is a hose with a grip 3. A bent pipe 4 having the same structure is connected thereto.

An extension pipe 5 and a floor suction port 6 are sequentially connected to this bent pipe.

A pair of fixed metal contacts 8, 8 are fixed at a predetermined interval on the lower side of the outer peripheral surface of the grip portion 3.

These fixed contacts 8, 8 are connected to core wires 9, 9 inside the hose 2, respectively.
It is electrically connected to the electric blower inside the vacuum cleaner main body 1 via.

Reference numeral 10 denotes a movable contact placed opposite the fixed contact 8.8 at a predetermined distance, and is fixed to the inner surface of a grip lever 11 disposed so as to cover the mounting portions of the fixed contacts 8,8.

The grip lever 11 is made of an elastic body 12.12 such as a coil spring.
The movable contact 10 is urged in a direction to move away from the fixed contacts 8, 8, and the tip claw portion 13 is locked to a locking portion 14 formed on one side of the grip portion 3, and the rear end portion 15 is rotated. It is held by a freely movable switching ring 16.

The switching ring 16 has a recess 20 having the same curvature as the rear end 15 of the grip lever 11. It is formed in one piece.

Further, the rib 1 has elasticity at a position facing the recess 20.
A stopper 21 that engages with the notch 17 of 8 is integrally formed.

Further, the inner diameter of the rib 19.degree. 19 is smaller than the maximum outer diameter of the bent pipe 4.

The fixed contact 8°8, the movable contact 10, the grip lever 11. The grip switch 7 is constituted by the elastic body 12.12.

22 is a connecting pipe that connects the bent pipe 4 and the hose 2; 23 is a protective cover that covers the connection between the core wires 9, 9 of the hose 2 and the fixed contacts 8; 24 is formed on the connecting pipe 22. The switching ring 16 is fitted with the ribs so as not to rattle.

In the vacuum cleaner constructed as described above, at the position of the switching ring 16 shown in FIG. 15 engages with the recess 20 and the movable contact 1
0 is always away from fixed contacts 8 and 8, and the switch is 0.
Become FF.

In this state, when the user grasps the grip part 3 for cleaning,
The grip lever 11 is pressed against the biasing force of the elastic body 12.12, and the movable contact 10 comes into contact with the fixed contacts 8, 8, short-circuiting the fixed contacts 8, 8, and the electric blower inside the vacuum cleaner body 1 is activated. drive.

Then, when you loosen your fingers gripping the grip part 3, the grip lever 1
1 is separated by the biasing force of the elastic bodies 12 and 12, and the time becomes 434 FF, and the drive of the electric blower is stopped.

Next, while holding the grip lever 11, rotate the switching ring 16 left or right to the state shown in FIG.
The rear end 15 of the grip lever 11 is pressed inward,
The movable contact 10 short-circuits between the fixed contacts 8, 8, and the grip switch 7 is always on, allowing continuous operation of the electric blower.

Also, rib 19. ! Since an inclined surface is formed at the end of the grip lever 9, even if the switching ring 16 is rotated without gripping the grip l/bar 11, the rear end of the grip lever is pressed inward by the inclined surface. Finally, the rib 19°19 becomes pressed and the electric blower can be operated continuously in the same manner as described above.

When the position is restricted as shown in FIGS. 7 and 8, the switching ring 16
The stopper 21 formed integrally with the rib 18 of the bent pipe 4
Since the switching ring 16 is configured to engage with three notches 17 formed on the outer circumferential surface of the switching ring 16, the switching ring 16 does not rotate inadvertently during each use, thereby preventing malfunction.

Also, when the switching ring 16 rotates, the rib 19 moves on the rib 18.
．． 19 rotates, there is less frictional force than when rotating with the entire surface in sliding contact, and the user can operate it without having to apply force.

Furthermore, the grip lever 11 has its tip claw portion 13 locked in the locking portion 14 of the bent tube 4, and its rear end portion 15 is held by the switching ring 16, so that the force of the switching ring 16 is directly applied to the grip lever 11. In addition, since the switching ring 16 has both the holding function and the switching function, the number of components can be reduced and manufacturing can be done at low cost.

Further, the grip lever 11 can be easily removed simply by removing the switching ring 16, and inspection and repair can be performed very easily.

As described above, according to the present invention, the electric blower can be operated by simply grasping the grip, which not only simplifies the work and eliminates the hassle, but also has the effect of saving electricity during use. be.

[Brief explanation of the drawing]

FIG. 1 is an external view of a vacuum cleaner that is an embodiment of the present invention.
Figure 2 is a sectional view of the end of the hose, Figure 3 is a bottom view of the hose end with the grip lever and switching ring removed, Figure 4 is a sectional view taken along line X-X in Figure 2, and Figure 5 is a sectional view of the hose end. 6 is a perspective view of the grip lever, and FIGS. 7 and 8 are sectional views taken along the line XX in FIG. 2, showing the operation of the switching ring. 1 is the vacuum cleaner body, 2 is a hose, 3 is a grip portion, 7 is a grip switch, 11 is a grip lever, 13 is a claw portion, 14 is a locking portion, 15 is a rear end portion, 16 is a switching ring, and 20 is a recessed portion. be.

Claims (1)

[Scope of utility model registration request] A vacuum cleaner having a grip switch for controlling the drive of the electric blower is provided in a grip at the end of a hose connected to a vacuum cleaner body having an electric blower, and a switching ring that rotates around the grip is provided, The grip switch includes a grip lever, an opening/closing contact provided between the grip lever and the grip part, and an urging means for applying an urging force between the grip lever and the grip part, and One end of the lever is locked to a locking part formed on one side of the grip part, and the other end of the grip lever is engaged with the switching ring, so that the other end of the grip lever and the switching ring are connected. A vacuum cleaner characterized in that the contact surface is formed by arcs of the same curvature.