JPS644767B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vacuum cleaner.

In recent years, the area occupied by carpets in general households has increased, and the prevalence of vacuum cleaners equipped with rotating brushes has rapidly increased. There are two ways to clean a carpet with a rotating brush: a canister type vacuum cleaner with a suction port that has an electric motor and a rotating brush, and an upright type vacuum cleaner that has an electric rotating brush and a dust collector. A vacuum cleaner may be used. When using a canister type vacuum cleaner and a suction body, not only must the vacuum cleaner be connected to a power source, but the electric motor inside the suction body must also be connected to a power source, and the cord can get in the way. The operability is poor. The upright type is convenient for cleaning carpets, but it is not suitable for cleaning hard floors or high places other than floors without driving a rotating brush.

For this reason, an upright type vacuum cleaner has been developed with a hose connection port for connecting a suction hose formed in the main body case so that it can be used as an upright type or a canister type. It's coming. However, when used as an upright type, a manual bar handle is required, but when used as a canister type, the upwardly extending bar handle gets in the way and a handle is provided to hang the main case. It's better to use. If the bar handle is removed, there is the inconvenience of losing or locating it and having to search for it later.

This invention was made in view of these points, and is a convenient part that allows the extension pipe connected to the suction hose when used as a canister type to be used as a bar handle when used as an upright type. The purpose is to provide a vacuum cleaner that can reduce the number of points.

When this invention is used as a canister type, the extension tube removed from the hanging handle is connected to the hose connection port via the suction hose, and if necessary, the hanging handle is grasped and the main case is hung. When used as an upright type, the extension tube connected to the hanging handle can be used as a bar handle. Therefore, operability can be improved in any usage type, and the extension tube can also be used as a bar handle. This reduces the number of parts and eliminates the hassle of searching for items by always clarifying their location.In addition, by providing a pair of handle support protrusions on the hanging handle or by forming a circumferential groove, it can be extended. The tube is held as a bar handle, but by supporting the handle support protrusions in conjunction with each other so that they can protrude and sink freely from the upper surface of the hanging handle, when the extension tube is removed, the handle support protrusions can be folded down and suspended. Improved usability and appearance of the lower handle, and even when a circumferential groove is formed, the circumferential groove has no protrusions and has a small concave area, so it can improve the usability and appearance as a hanging handle. It is composed of

A first embodiment of this invention will be described based on FIGS. 1 to 7. Reference numeral 1 denotes a main body case including a front wheel 2 and a rear wheel 3, and bumpers 4 are provided on the front and both sides of the main case 1. Moreover, this main body case 1 is divided into left and right halves, and inside there is formed a brush chamber 7 in which a motor 5 and a rotating brush 6 are connected and housed, and an electric blower chamber 9 in which an electric blower 8 is housed. At the same time, a dust collection case 10, which is a dust collection section, is housed in a removable manner from above. This dust collection case 10 is the main case 1
It has a clamp 11 that engages with a part of the body, and a breathable dust collection bag 12 is removably attached to the inside. The brush chamber 7 has a horizontally long suction opening 13 that opens toward the floor and a cylindrical hose connection port 1.
4 are connected to the dust collecting case 10 while being sealed by a packing 15. A communication hole 16 that communicates between the hose connection port 14 and the brush chamber 7 is closed by a suction hose 17 inserted into the hose connection port 14. Also,
An on-off valve 18 is provided at the open end of the hose connection port 14.

U-shaped hanging handles 19 are attached to both sides of the main body case 1 so as to be rotatable in the front and rear directions. The hanging handle 19 has a grip portion 20 in the center thereof, and a pair of handle support protrusions 21 are held in the grip portion 20 so as to be rotatable in the left-right direction. These handle support protrusions 21 have gears 22 that mesh with each other at their bases, and the upward protruding position is determined by a stopper 23 formed in the grip part 20, and when tilted to the left or right, the handle support protrusions 21 are located in the recessed part of the grip part 20. 2
It is buried in 4. Further, the handle support protrusions 21 have a back shape that forms part of the circumference of a circle when they are opposed to each other in a protruding state, and are slightly tapered in the axial direction. Further, a pin 27 that engages with a locking hole 26 formed on the circumferential surface of the extension tube 25 is provided on the back surface of the handle support protrusion 21 and is supported by a plate spring 28 . A grip 29 is fitted onto the outer periphery of one end of the extension tube 25.

In such a configuration, when used as an upright type, the on-off valve 18 is closed. Further, one handle support protrusion 21 is raised to a protruding state. At this time, since the handle support protrusions 21 are interlocked and connected by the meshing of the gear 22, the other handle support protrusion 21 also rises. If the finger rest part 30 is formed on the grip part 20, the handle support protrusion 21 can be raised even more easily. Next, one end of the extension tube 25 is fitted into the raised handle support protrusion 21 in a tapered manner, and the extension tube 25 is prevented from coming off by engagement with the locking hole 26 and the pin 27. However, grip 29
Since the extension tube 25 can be operated as a bar handle by grasping the handle, it has good operability as an upright type.

Next, when using it as a canister type, the pin 27 is pushed, the extension tube 25 is pulled out, and the handle support protrusion 21 is buried in the recess 24. Then, one end of the extension pipe 25 on the grip 29 side is connected to the suction hose 17 inserted into the opened hose connection port 14, and the other end is connected to the suction port body 31. When lifting the main case 1, use the short hanging handle 19
Use. At this time, since the handle support protrusion 21 is buried in the recess 24, the grip portion 20
The usability and appearance are good.

Next, a second embodiment of the present invention will be shown based on FIGS. 8 to 11. The same parts as in the previous embodiment are designated by the same reference numerals, and the description thereof will be omitted. Hanging handle 3
A deep circumferential groove 34 is formed in the grip portion 33 of No. 2. The outer periphery of the boss 35 resulting from the formation of the circumferential groove 34 is slightly tapered. A retaining member 36 that engages with the retaining hole 26 at the end of the extension tube 25 from the inside to the outside is held in the boss 35 so as to be slidable while being biased in the outer circumferential direction by a spring 37. Further, a slide lever 38 is provided on the grip portion 33 and is slidably biased toward one side by a spring 39, and comes into contact with the center of the tip of the stopper 36.

In this configuration, when the extension tube 25 is fitted into the circumferential groove 34, the slide lever 38 is used to push the locking body 36 inward as shown in FIG. As a result, the extension tube 25 is held in the circumferential groove 34 on both the inner and outer peripheries, and is prevented from slipping out by the slip-off locking body 36. When the extension tube 25 is to be pulled out, the slide lever 38 is used to push the locking body 36 inward as shown in FIG. in this way,
The circumferential groove 34 holds the extension tube 25, but the grip 3
There is nothing protruding from the top surface of 3, making it easy to grip. Furthermore, the area of the circumferential groove 34 as a recess is small and does not impair the appearance.

Since this invention is configured as described above, it can be cleaned in the most convenient state as both an upright type and a canister type, and an extension tube used as a canister type can also be used as an upright type. By using it as a bar handle, you can reduce the number of parts and clarify the location of the extension tube used as a bar handle, eliminating the hassle of searching for something. By interlocking the handle support protrusions and attaching them so that they can protrude and sink freely, it is possible to facilitate the operation of holding the extension tube and to improve the usability and appearance of the hanging handle when the extension tube is removed. ,
Alternatively, by forming a circumferential groove on the hanging handle and providing a retaining body in this circumferential groove, the inner and outer circumferences of the extension tube are fitted and held, and the extension tube is prevented from coming off in the axial direction.
This increases the support strength of the extension tube, and since the circumferential groove does not protrude from the top surface of the hanging handle and the area of the recess is small, it improves the usability and appearance when the extension tube is removed. It has the following effects:

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a first embodiment of the present invention, Fig. 2 is a longitudinal side view thereof, Fig. 3 is an enlarged longitudinal sectional front view of the hanging handle, and Fig. 4 is an enlarged longitudinal sectional view of the hanging handle. Fig. 5 is an enlarged perspective view, and Fig. 6 is an enlarged perspective view showing the connection structure between the hanging handle and the extension pipe.
The figure is a side view showing how it is used as an upright type, FIG. 7 is a side view showing how it is used as a canister type, and FIG. 8 is a side view showing a second embodiment of this invention. FIG. 9 is an enlarged vertical cross-sectional view of the lower handle, FIG. 9 is an enlarged perspective view of the suspension handle, and FIG. 10 is a partially enlarged longitudinal cross-sectional view of the state in which the extension pipe begins to fit into the suspension handle. Front view,
FIG. 11 is a partially enlarged longitudinal sectional front view showing a state in which the extension tube begins to be pulled out from the hanging handle. DESCRIPTION OF SYMBOLS 1... Main body case, 8... Electric blower, 10... Dust collection case (dust collection part), 13... Suction opening, 14... Hose connection port, 17... Suction hose, 19... Hanging handle,
21... Handle support protrusion, 25... Extension pipe, 26...
Locking hole, 29...Grip, 32...Suspension handle, 34
...Circumferential groove, 36...Ejection prevention locking body.

Claims (1)

[Scope of Claims] 1. A main body case that has a vacuum cleaner and a dust collection part and runs on the floor, has a suction opening that opens toward the floor, and a hose connection port that opens toward the side or above. and are alternately connectable to the dust collecting section, a hanging handle is provided on the main body case, a grip is provided on the outer periphery of one end of an extension tube connected to the hose connection port via a suction hose, and A pair of handle support protrusions inserted into the other end of the extension tube in a protruding state opposite to the hanging handle are interlocked and connected to each other so that they can be protruded from and recessed from the upper surface of the handle. Vacuum cleaner. 2. A main body case that has a vacuum cleaner and a dust collection section and runs on the floor is provided with a suction opening that opens toward the floor and a hose connection port that opens toward the side or top of the dust collection section. A suspension handle is provided on the main body case, a grip is provided on the outer periphery of one end of an extension tube connected to the hose connection port via a suction hose, and the extension pipe is provided on the suspension handle with a A circumferential groove is formed to fit and hold the inner and outer peripheries of the other end of the tube, and a retainer is provided in the circumferential groove to elastically protrude from the inside to the outside into the locking hole formed on the outer periphery of the extension tube. A vacuum cleaner characterized by having a stopper that can be slid freely.