JPS6217021Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a vacuum cleaner.

In recent years, the area occupied by carpets in general households has been increasing, and the number of upright type vacuum cleaners equipped with rotating brushes is increasing. This type has a bar handle that extends upward at the rear of the main body to allow the main body to travel and suck in dirt from a suction air passage formed on the bottom surface. Furthermore, a canister type vacuum cleaner is required in order to connect a suction port to the end of a suction hose and clean corners of the floor and areas other than the floor. For this reason, we formed a suction port to selectively connect the suction hose to the main body of the upright type vacuum cleaner, and made the bar handle hollow to function as an extension tube. Pull out the suction hose from the mouth and push the bar handle to run the main body.When using it as a canister type, connect the suction hose to the suction port, then pull out the bar handle and connect this as an extension pipe to the suction hose. The development of a vacuum cleaner in which a suction port body is further connected is progressing. The extension tube in this case is difficult to operate as a bar handle unless it has a grip at one end.
Because the extension tube is round and straight, and the grip must be installed without blocking the open end of the extension tube, many screws or screws are required to secure the axial and circumferential movement. Requires cumbersome gluing work. Forming an engaging part at the fitting part of the extension pipe and the grip, or making the fitting part partially polygonal, complicates the manufacturing process of the extension pipe, lacks smoothness in the air passage, and reduces intake noise. It can also be a cause of occurrence. Moreover, since the grip is shaped to surround the extension pipe, it is necessarily thick, and there is a problem in that it is difficult to achieve both ease of grip and obtaining the optimum cross-sectional area of the air passage of the extension pipe.

Furthermore, as described in Japanese Utility Model Publication No. 10454/1973, there is also a handle in which the extension tube is held between two split bodies from both sides, but in this case, However, since the handle is attached to the straight portion of the extension tube, it is impossible to prevent it from coming off in the axial direction or preventing rotation in the radial direction.

This idea was made in view of these points, and it makes it easy to use the extension tube used in the case of the canister type as a bar handle in the case of the upright type. It is an object of the present invention to provide a vacuum cleaner that can be attached to a handle body without coming off in the axial direction or rotating in the radial direction.

This idea includes a main body that has an electric blower and a dust collection part and runs on the floor, and a bent part is formed at one end of the extension pipe to which the suction hose, suction port body, etc. are connected.
A handle body having a gripping part is formed by a pair of divided bodies that sandwich this bent part from both sides and are connected to each other, and the handle body of the extension tube is directed upward to the main body, and the other end of the extension tube is attached to the main body. The device is characterized in that it is provided with a holding portion that detachably holds the device. Therefore, by attaching the extension tube used for the canister type to the holding part of the main body, it can be used as an upright type bar handle.In this case, the handle body can be attached to the bent part of the extension pipe from both sides. Since it is formed by a pair of divided bodies that are sandwiched and connected to each other, the attachment structure to the extension tube is simple, and since it is attached to the bent part, the cross section of the extension tube is circular throughout the entire area. It is constructed so that axial removal and radial rotation prevention can be achieved at the same time.

An embodiment of this invention will be explained based on the drawings.
Reference numeral 1 denotes a main body having wheels 2 and 3. In front of the main body 1, there is formed a suction air passage 5 with an opening at the bottom that houses a horizontally elongated rotating brush 4, and in the center is a dust collector in which a filter unit 6 is inserted. A dust collection case 7, which is a part, is detachably attached by a clamp 8, and an electric blower chamber 10 housing an electric blower 9 is installed at the rear of the dust collection case 7, and an exhaust hole 11 formed on the exhaust side of the dust collection case 7 and the rear surface of the main body 1. It is formed in communication with the Also,
Although not shown, a cord reel chamber for storing a cord reel is also formed at the rear of the main body 1. Furthermore, a suction port 13 that is opened and closed by a lid 12 is formed in the upper part of the suction air passage 5, and this suction port 13 is connected to the dust collection case 7 by a connecting pipe 14.
It is airtightly connected to the through hole 15 of. This connecting pipe 14 is formed with a through hole 17 that communicates with the suction air path 5 and is closed by an end of a suction hose 16 connected to the suction port 13.
Furthermore, a belt 1 is provided to apply rotational force to the front part of the main body 1.
A motor 19 for transmitting power to the rotating brush 4 by means of a motor 8 is built-in.

Next, an extension tube 20 is provided at the rear center of the main body 1.
The holding part 21 that removably holds the end of the pin 2
The holding portion 21 is provided with a locking pawl 23 that elastically engages with a locking hole formed in the extension tube 20.

A bent portion 24 is formed at one end of the extension tube 20, and a handle body 25 is fixed thereto. This handle body 25 is made up of a pair of left and right divided bodies 26 and 27 connected by a single screw so as to hold the bent part 24, and has a grip part 28 and a hook part 30 for holding a power cord 29. There is. As shown in FIG. 3, a boss 31 formed on the divided body 26 is used for screwing a screw when joining the divided bodies 26 and 27 together. A connecting pipe 32 is provided at the other end of the suction hose 16 and is inserted into the rear end of the handle body 25 and inserted externally into the end of the extension pipe 20. A plate spring 33 is inserted into the inner periphery of the extension tube 20, and the plate spring 33 protrudes from the outer surface of the extension tube 20 and elastically engages with a locking hole 34 formed in the connection tube 32. Locking protrusion 3
5 is fixed. And this locking protrusion 35
is a recess 36 formed on the side surface of the handle body 25.
By pressing the leaf spring 33 with a finger, the leaf spring 33 is deflected and retreated inward. 37 is a suction port body.

In such a configuration, when using it as an upright type for cleaning a carpet, as shown in FIG. are fitted, and the main body 1 is moved and cleaned by gripping the grip part 28 of the handle body 25. At this time, the suction port 13 is closed by the lid 12. Therefore, the dust is removed from the floor surface by the rotating brush 4 and collected in the dust collection case 7 through the suction air passage 5. At this time, extension tube 2
The rear part of the handle body 25 is oriented substantially horizontally due to the formation of the bent part 24, and the grip part 28 of the handle body 25 can be set to any thickness regardless of the thickness of the extension tube 20, making it easy to grip and extremely operable. good.

When used as a canister type, connect the suction hose 16 to the suction port 13 as shown in FIG. The suction port body 37 is connected to the extension pipe 20, and the grip part 28 is held for cleaning. At this time, the through hole 17 that communicates the suction air path 5 with the inside of the dust collection case 7 is closed by the suction hose 16, and dust is sucked in only from the suction port body 37. The extension pipe 20 also serves as a bar handle, but its cross-sectional shape is uniform over its entire length, and intake noise is extremely low.

When attaching the handle body 25 to the extension tube 20, since the bent portion 24 is sandwiched between the pair of divided bodies 26 and 27, the handle body 25 and the extension tube 20 can be assembled by simply connecting the divided bodies 26 and 27 with one screw. It is possible to fix the movement with.

Since this device is configured as described above, the extension tube used as a canister type can also be used as a bar handle when used as an upright type, and in this case, the end of the extension tube can be The shape allows it to be oriented horizontally, and by fixing a handle body with a gripping part of an arbitrary thickness to the bent part, it is easy to grip while maintaining the optimal air passage cross-sectional area of the extension pipe. In addition, by forming the handle body by sandwiching the bent part of the extension tube between a pair of divided bodies connected to each other, it is possible to easily connect the divided bodies with a single screw. In terms of structure, the extension tube and the handle body can be securely fixed, and the handle body can be manufactured very easily without changing the cross-sectional shape of a part of the extension tube in order to prevent the handle body from slipping out or rotating. It has the following effects.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a perspective view, the second figure is an enlarged vertical side view, and the third figure is a perspective view.
The figure is an enlarged longitudinal cross-sectional side view showing the state of connection between the extension pipe and the suction hose, and Figure 4 is A--A in Figure 3.
A cross-sectional view of the A line part, Figure 5 is B-B in Figure 3.
6 is a side view showing the state of use as an upright type, and FIG. 7 is a side view showing the state of use as a canister type. 1... Body, 5... Suction air path, 7... Dust collection case (dust collection part), 9... Electric blower, 13... Suction port, 16... Suction hose, 20... Extension pipe, 21
...Holding part, 24...Bending part, 25...Handle body, 26-27...Divided body, 28...Gripping part, 3
7...Suction port body.

Claims (1)

[Scope of utility model registration request] A main body that has an electric blower and a dust collection part and runs on the floor is provided, a bent part is formed at one end of an extension pipe to which a suction hose, a suction port body, etc. are connected, and this bent part is held from both sides. a handle body having a grip part is formed by a pair of divided bodies that are coupled to each other, and a holding part that removably holds the other end of the extension tube on the main body with the handle body of the extension tube facing upward; A vacuum cleaner characterized by being provided with.