JPS6182724A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vacuum cleaner, and particularly to a bearing portion of a lid provided in a main body case of a vacuum cleaner.

[Conventional technology]

A dust collection chamber, a parts storage chamber, etc. are formed in the main body case of a vacuum cleaner, and a cover body that can be opened and closed is attached to the main body case corresponding to the dust collection chamber, parts storage chamber, etc.

These lids have one hinge fitting 2 attached to the lid 1 side, and a main body, for example, as shown in FIGS. The other hinge metal fitting 4 attached to the case 3 side is rotatably supported at @5.

This @5 is supported by being inserted into a bearing hole 7 formed oppositely to a pair of bearings 6 protruding from the main body case 3, and is supported by being inserted into one end. The stopper ring 8 is fitted.

[Problem that the invention seeks to solve]

However, in such a structure, the stopper ring 8 is
If the stopper ring 8 is not fitted, the shaft 5 will fall out of the bearing hole 7 and fitting the stopper ring 8 is troublesome. In this case, since the direction of the bearing hole 7 is perpendicular to the handling direction of the mold for forming the bearing 6, the mold for forming the bearing hole 7 must be a sliding type, which is difficult to manufacture. Not only that, but the cost of molds etc. also increases, resulting in high costs.

The present invention was developed in view of these problems, and it is easy to manufacture, can reduce costs, can prevent the shaft from falling off without attaching a stopper ring or the like to the shaft, and can easily attach the shaft. The purpose of this invention is to provide a vacuum cleaner having a bearing.

[Means for resolving issues]

In order to solve the above-mentioned problems, the present invention provides a vacuum cleaner in which a lid body is attached to a main body case made of synthetic resin so as to be rotatably opened and closed around a shaft. A bearing body that is integrally made of synthetic resin and has a vertically elongated bearing hole that supports the shaft, and also has a shaft insertion part that is formed by cutting out at least a lower part of the side of the bearing hole than the middle part. is elastically formed by integrally protruding from synthetic resin on the main body case in front of the bearing hole, and has a height at least as long as the diameter of the shaft than the height of the bearing hole. a shaft support that is formed very low and supports the shaft supported in the bearing hole from below at the tip; A sloped surface is formed on the main body case on the side of the shaft insertion portion, which is a side of the shaft support, and is formed to be lower than the height of the shaft insertion portion by at least the length of the diameter of the shaft. thirdly, the bearing is covered with a bearing cover having a side wall formed with an inverted U-shaped slit into which the shaft support is inserted; The edge of the slit prevents the shaft support from bending toward the shaft insertion portion, thereby serving as a stopper.

[Effect]

In the present invention, when the shaft supporting the lid body is inserted from the shaft insertion part into the bearing hole while pressing and bending the elastic shaft support, the shaft is supported in the bearing hole and the elastic force is applied. It is supported from below by the tip of the shaft support that has returned to its original state. Also, an inclined surface is formed at the tip of the shaft support that slopes toward the opposite side of the shaft insertion part, so that the shaft inside the bearing hole can be inserted easily. In addition to reliably preventing the shaft support from shifting toward the shaft insertion part and coming off the bearing, in this case, the shaft support that is pushed and bent toward the shaft insertion part is held down with a stopper, or the shaft support located in the slit in the side wall of the bearing cover is The support post is restricted by the outer edge of this slit and is prevented from bending.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 4 and FIG. 9.

First, as shown in FIG. 9, this vacuum cleaner has a built-in electric blower (not shown) in the rear part of the main body case 11 made of synthetic resin, and the inside of the main body case 11, which is the suction side of this electric blower, A dust collection chamber is provided in the front half of the dust collection chamber.
A dust collection bag is attached to the dust collection chamber so that it can be rotated to open and close.

Further, a suction port 14 communicating with the dust collection bag in the dust collection chamber is formed on the front side of the main body case 11, and a frame-shaped handle 15 is provided above the suction port 14.

Further, rotatable rear wheels 1 are provided on both rear sides of the main body case 11.
6 is provided, and a rotatable front wheel (not shown) is provided at the center of the bottom front part of the main body case 11.

A storage recess 1γ is formed across the lid 12 side and the main case 11 side, and a frame rotatably supported within the storage recess 17 by a shaft 13 that pivotally supports the lid 12. A shaped handle 18 is provided.

Furthermore, an indicator 19 is provided on the lid 12 to indicate the state of negative pressure in the dust collection chamber caused by the electric blower.

Next, the bearing 21 of the shaft 13 that pivotally supports the lid 12 will be explained with reference to FIGS. 1 to 4.

Both side edges of the rear half of the upper surface of the main body case 11 are raised,
A recess 22 is formed therebetween, and a pair of bearings 21 are formed on both sides of this recess 22. A spring locking recess 2 is provided at the bottom of the recess 22 between the pair of bearings 21.
3 are formed, and are wound around the shaft 13 which is supported between the pair of bearings 21 in the spring locking recess 23, and bias the lid body 12 to the open state.
One end of each of 4 is inserted.

Each of the bearings 21 is made of synthetic resin and is integrally formed with the main body case 11, and has vertically long bearing holes 31 that support the jql 113 facing each other, and the side of the bearing hole 31 is formed so as to face each other. A shaft insertion hole 32, which serves as a shaft insertion portion for inserting the shaft 13 into the bearing hole 31, is formed by cutting out the lower part of the side portion that is on the opening side of the dust collection chamber, and forming a shaft insertion portion for inserting the shaft 13 into the bearing hole 31. A bearing body 33 is provided to protrude from the body case 11.

Then, on the main body case 11 which is the lower side of the bearing main body 33, a type 1 hole is written, which corresponds to the bearing hole 31 and the shaft insertion hole 32, and which communicates with the bearing hole 31 and the shaft insertion hole 32. A hole 34 is bored.

In addition, a shaft support 35 is provided on the main body case 11 in front of the bearing hole 31 and is integrally formed with the main body case 11 from synthetic resin so as to have elasticity.

This shaft support 35 has a height of the vertically long ll1Il receiving hole 31.
The shaft 13 is lower than the height of the shaft 13 by the length of the diameter of the shaft 13, and its tip abuts against the lower side of the shaft 13 supported within the shaft support 35 to support it from below.

Then, both ends of the lN 113, which have passed through one side edge of the lid 12 and the base end of the handle 18, are inserted into the shaft insertion holes 32 of the pair of bearings 21, as shown in FIG. Then, as shown in FIG. 3, the end of the shaft 13 first contacts the shaft support 35 from the side and bends the shaft support 35, so that the shaft 13 remains in the bearing hole 31 as shown in FIG.
Since the shaft support 35 is inserted and supported inside the shaft support 35, the shaft support 35 returns to its original state due to its elastic force, and its tip abuts the lower part of the shaft 13 within the bearing hole 31 to support the IN 113 from below.

The shaft 13 supported in the bearing hole 31 has the shaft insertion hole 32 formed only downward from the middle part of the side of the bearing hole 31, and the upper part of the side of the bearing hole 31 remains to support @13. The shaft 13 is reliably supported within the bearing hole 31 because the shaft 13 is blocked by the shaft support 35 even if it attempts to slip downward from the bearing hole 31 and exit from the shaft insertion hole 32 .

By the way, the above structure is sufficient to perform the function of the bearing 21, but in order to make the vacuum cleaner look beautiful, the upper surface of the main body case 11 is modified as shown in FIGS. 7 and 9. A main body cover 41 is fitted into the recess 22.

This main body cover 41 covers the recess 22 and also covers one side edge of the lid 12 passing through the shaft 13 and the handle 18.
The housing recess 11 is formed as shown in FIG. ing.

The bearing cover 42 includes a side wall 43 forming a peripheral wall of the storage recess 17 and a top plate 44 that covers the upper side of the bearing 21.
and a front side wall 45 that covers the front of the bearing 21.

The side wall 43 has an inverted U-shape in which the shaft support 35 is inserted into a portion corresponding to the shaft support 35 to avoid contact with the shaft support 35, and the shaft 13 supported by the bearing 21 is inserted. A slit 46 is formed.

When an external force is applied to the shaft 13 and the shaft 13 is pushed downward and tries to come out from the shaft insertion hole 32, the shaft support 35 that prevents this tends to bend toward the shaft insertion hole 32. Since the outer edge of the slit 46 contacts and supports the shaft support 35, the shaft support 35 is prevented from being bent any further, and there is no fear that the shaft 13 will come off from the bearing 21.

Next, another embodiment will be described based on FIGS. 5 and 6.

Note that the same parts as in the previous embodiment are given the same reference numerals, and the explanation thereof will be omitted.

In the bearing 21 of this embodiment, an inclined surface 51 is formed at the tip of the shaft support 35 on the side opposite to the shaft insertion hole 32, and an inclined surface 51 is formed on the main body case 11 on the shaft insertion hole 32 side of the shaft support 35. A stopper 52 made of synthetic resin is integrally provided on the shaft, and the height of this stopper 52 is equal to the height of the shaft insertion hole 32.
The height of the shaft 13 is lower than the height of the shaft 13 by the length of the diameter of the shaft 13.

When formed in this way, the shaft 1 supported within the bearing hole 31
3 is regulated by the inclined surface 51 of the shaft support 35, and the shaft insertion hole 3
There is no handling on the second side, but on the contrary, the shaft support 35 is attached to the inclined surface 51.
However, since the stopper 52 contacts and supports the shaft support 35 that is about to bend, there is no risk that the shaft support 35 will bend too much and break. .

The bearing 21 in each of the above embodiments is integrally formed with the main body case 11 by injection molding, but the molding die in this case can be formed by cutting out the upper and lower parts through the torch hole 34.
The structure of the mold is simple and inexpensive, the cost can be reduced, and molding is also easy.

〔Effect of the invention〕

According to the present invention, the shaft can be easily and reliably supported simply by inserting the shaft through the shaft insertion hole, and the shaft does not come off even if other locking members such as a stopper ring are fitted onto the shaft, so the shaft installation process is easy. In addition, since there is no need to use separate parts to lock the shaft to the bearing, the cost can be reduced.

In addition, if the tip of the shaft support is provided with a sloped surface that slopes toward the opposite side of the shaft insertion part, the shaft inside the bearing hole is restricted by this slope and does not try to come out of the shaft insertion part. Moreover, even if the inclined surface is pushed by the shaft and the shaft support jumps toward the shaft insertion part, the shaft support is supported by the stopper and will not break.

In addition, since the bearing is covered with a bearing cover, the appearance is excellent, and the shaft support is bent by external force from the shaft when the shaft is inserted into the bearing hole or when the lid is opened and closed.

An inverted U-shaped slit into which the shaft support is inserted is formed in the side wall of the bearing cover, and the shaft support is regulated by the periphery of the slit to suppress the deflection of the shaft support, so that the shaft support does not bend too much and break.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a part of the main body case and lid body for electric cleaning according to one embodiment of the present invention, Figs. 2 to 4 are perspective views of the bearing thereof, and Fig. 5 is another embodiment of the present invention. Fig. 6 is a front view of the bearing, Fig. 7 is a perspective view of the bearing covered with a bearing cover, Fig. 8 is a vertical sectional view of the bearing portion, Fig. 9 is a perspective view of the bearing.
1 is a perspective view of a vacuum cleaner, and FIGS. 10 and 11 are longitudinal sectional views showing a bearing portion in a conventional vacuum cleaner. 11...Body case, 12...Lid, 13...Shaft, 21
・・1 sleeve support, 31・・bearing hole, 32・・shaft insertion hole that becomes the shaft insertion part, 33・・bearing body, 35・・shaft support, 42・・
・Bearing cover, 43...Side wall, 46...Slit, 51
...Slope, 52...Stopper. September 28, 1982

Claims (3)

[Claims] (1) In a vacuum cleaner in which a lid body is attached to a main body case made of synthetic resin so that it can be rotated to open and close on a shaft, a bearing that supports the shaft is integrally protruded from the main body case with synthetic resin and supports the shaft. a bearing body having a supporting vertically elongated bearing hole and a shaft insertion part formed by cutting out at least a lower part of the side of the bearing hole; and a main body case mounted on the main body case in front of the bearing hole. a shaft support that is integrally protruded from a synthetic resin and whose height is lower than the height of the bearing hole by at least the length of the diameter of the shaft, and supports the shaft supported in the bearing hole from below at its tip; A vacuum cleaner characterized by comprising: (2) In a vacuum cleaner in which a lid body is attached to a main body case made of synthetic resin so that it can be rotated to open and close around a shaft, a bearing that supports the shaft is integrally protruded from the main body case with synthetic resin and supports the shaft. a bearing body having a supporting vertically elongated bearing hole and a shaft insertion part formed by cutting out at least a lower part of the side of the bearing hole; and a main body case mounted on the main body case in front of the bearing hole. The shaft is formed integrally with a synthetic resin and has a height lower than the height of the bearing hole by at least the length of the diameter of the shaft, and has an inclined surface at the tip thereof inclined toward the side opposite to the shaft insertion portion. and a shaft support that supports the shaft supported in the bearing hole from below on this inclined surface, and a shaft support that protrudes on the main body case on the shaft insertion portion side that is on the side of the shaft support and that is connected to the shaft insertion portion. and a stopper formed lower than the height by at least the length of the diameter of the shaft. (3) In a vacuum cleaner in which a lid body is attached to a main body case made of synthetic resin so that it can be rotated to open and close on a shaft, a bearing that supports the shaft is integrally protruded from the main body case made of synthetic resin and supports the shaft. a bearing body having a supporting vertically elongated bearing hole and a shaft insertion part formed by cutting out at least a lower part of the side of the bearing hole; and a main body case mounted on the main body case in front of the bearing hole. a shaft support that is integrally protruded from a synthetic resin and whose height is lower than the height of the bearing hole by at least the length of the diameter of the shaft, and supports the shaft supported in the bearing hole from below at its tip; What is claimed is: 1. A vacuum cleaner comprising: a bearing cover having a side wall having an inverted U-shaped slit into which the shaft support is inserted;