JPH0228863Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an upright cleaner in which a dust bag is suspended from the back side of an arm protruding from the rear of the cleaner body.

(B) Prior Art In the conventional technology described in U.S. Pat. No. 4,006,512, which precedes the present invention, a connecting pipe is fixed to an arm protruding from the rear of the cleaner body with a fixing screw, and the arm is A dust bag is hung on the back side.

However, in this type of prior art, the fixing screw protrudes toward the back side of the arm, and the fixing screw and the dust bag rub against each other, resulting in the dust bag being torn when used over time.

(c) Problems to be Solved by the Invention The present invention solves the above-mentioned drawbacks and prevents the dust bag from being damaged due to frictional contact with the fixing screw.

(d) Means for solving the problem The present invention fixes the connecting pipe to the arm protruding from the rear of the cleaner body with a fixing screw, and also fixes the connecting pipe between the cleaner body and the connecting pipe on the back side of the arm. In the suspended dust bag, the operation part of the fixing screw is made to protrude to the back side of the arm, and an arc-shaped rib is provided that extends parallel to the connection pipe and protrudes outward from the operation part. It is something that

(E) Effect According to the present invention, the fixing screw can be easily operated from the back side of the arm. The dust bag is blocked by arcuate ribs and does not come into frictional contact with the fixing screw, so it will not break.

(f) Examples Next, one embodiment of the present invention will be described.

In FIGS. 1 and 2, 1 is a cleaner body, which is movably supported by front wheels 2 and rear wheels 3, and has a built-in electric blower (not shown).
The blowing pressure of this blower sucks dust from the suction part 4, discharges the dust from the rear part of the suction part 4, and sends the dust to the dust bag 5. Reference numeral 6 denotes an arm protruding from the rear of the cleaner main body 1. As shown in FIG. , reinforcing ribs 8, 8... are stretched. 9 is a cord reel case attached to an arm 6 and a connecting pipe 11 fixed to the arm with a fixing screw 10; a locking tool 12 is provided at the top of the connecting pipe 11; Dust bag 6 is hanging. The suspended dust bag 5 is located on the back side of the arm 6. The arm 6 is configured to be rotatable relative to the cleaner body 1 between an upright position when not in use and a rearward tilted position when in use, as shown in FIG.

As shown in FIGS. 4 and 5, the fixing screw 10 has a bag-like wing nut portion 1 as its operating portion.
3 protrudes from the rear side of the arm 6 via the contact plate 13a to improve its tightening operability and aesthetic appearance from the front side. In this fixing screw 10, the head of the bolt portion 14 inserted from the front side of the arm 6 has a simplified shape so as not to be visually noticeable, and is not rotated. Further, the arm 6 has bag-shaped wing nut parts 1 on both sides of the bag-shaped wing nut part 13.
Arcuate ribs 15, 15 which protrude outward from 3 are integrally molded. These arcuate ribs 15, 15 extend parallel to the connecting pipe 11, and abut on the dust bag 5 with their arcuate surfaces. The dust bag 5 approaches and separates from the fixing screw operation part 13 every time the connecting pipe 11 is rotated dozens or hundreds of times during cleaning, but the dust bag 5 is prevented by the arcuate rib 15. Since it is guided smoothly in the sliding direction, it is prevented from being pinched by the operating section 13 and torn.

(g) Effects of the invention Since the invention is constructed as described above, the fixing screw of the connecting pipe can be easily tightened from the back side of the arm, and the dust bag is blocked by the arcuate rib and can be smoothly slid in the direction of sliding. Since it is guided, it is prevented from being pinched by the operating part of the fixing screw and being torn.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention,
Figure 1 is a front view, Figure 2 is a side view, Figure 3 is a rear view of the arm, Figure 4 is a sectional view taken along line A-A in Figure 3, and Figure 5 is an enlarged view of the main parts. It is. 1...Cleaner body, 5...Dust bag,
6...Arm, 10...Fixing screw, 11...Connection pipe, 13...Operation section, 15...Rib.

Claims (1)

[Claims for Utility Model Registration] 1. A connecting pipe is fixed to an arm protruding from the rear of the cleaner body with a fixing screw, and a dust bag is suspended between the cleaner body and the connecting pipe on the back side of the arm. The operating part of the fixing screw projects toward the rear side of the arm, and an arcuate rib is provided that extends parallel to the connecting pipe and projects further outward than the operating part. light cleaner. 2. The upright cleaner according to claim 1, wherein the arcuate rib is integrally formed with the arm.