JPH0430166Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a waste bin having a rotating lid supported on a balance.

[Conventional technology]

As this type of waste container, a lid frame is attached to the upper end opening of the low cylindrical body, a rotating lid is disposed inside the lid frame so as to be rotatable in a balance shape, and the central part of the rotating lid is It is known to have a hanging U-shaped weight fitting for stably holding the rotary lid in a horizontal closed position. Therefore, the supporting structure of the rotary lid in this type of waste bin is, for example, as shown in FIG. 5, by drilling a circular bearing hole c in the center of the inner wall b of the lid frame a, A stepped support shaft e is fixed to the upper end of the weight fitting d, and the support shaft e is inserted through the side wall g of the rotary lid f and rotatably inserted into the bearing hole c of the lid frame a. It has been known.

[Problem that the invention attempts to solve]

However, with such a structure, it is necessary to attach a special support shaft e to the weight metal fitting d, so there is a problem that the number of parts increases and it takes time and effort to manufacture.

Therefore, as shown in FIG. 6, a cut-and-raised piece E similar to the vertical cross-sectional shape of the support shaft e is integrally provided on the upper end of the weight fitting D, and the cut-and-raised piece E is attached to the rotary lid F. A device has been developed that is rotatably inserted into a circular bearing hole C that is bored through the side wall G and bored in the inner wall B of the lid frame A.

However, when the cut-and-raised piece E having the same thickness as the weight fitting D is repeatedly rotated in the bearing hole C bored in the inner wall B of the cover frame A made of sheet metal, the bearing hole of the cut-and-raised piece E There is a problem in that the portion that makes sliding contact with C is partially shaved off and easily wears out. Such a cutting phenomenon with respect to the cut and raised piece E becomes more remarkable as the plate thickness of the cover frame A in which the bearing hole C is provided becomes smaller. In addition, since this type of product is used for a long period of time without any supply of lubricating oil, there may be problems caused by friction at the sliding portion between the cut and raised piece E and the bearing hole C. There is a problem that noise is easily generated.

The present invention aims to solve these problems.

[Means for solving problems]

In order to achieve the above objects, the present invention employs the following configuration.

That is, the waste bin according to the present invention includes a lid frame that is attached to the upper end of the main body and has a fan-shaped bearing hole that expands upward in the center of the inner wall, and a side wall on the inner wall. a rotary lid disposed inside the lid frame in close proximity to each other, and a weight fitting whose upper end is positioned on the inner side of the side wall of the rotary lid and is suspended from the rotary lid; Only the part with the lower edge on the distal side of the cut and raised piece is formed so that the lower edge on the proximal side gradually rises outward and the lower edge on the distal side becomes horizontal. , the rotary lid is inserted into the bearing hole of the lid frame by penetrating the side wall thereof, and the lower edge of the tip side of the cut-and-raised piece is tiltably engaged with the latch of the lower end of the bearing hole. do.

[Effect]

With such a configuration, when an external force is applied to the end of the rotary lid due to a waste input operation, etc., the cutting piece will tilt with its lower edge in contact with the lower end latch of the bearing hole. In this case, the lower edge of the proximal end of the cut-and-raised piece is not inserted into the bearing hole of the lid frame, so it does not contact the lid frame and As a result, the rotary lid can be opened and closed smoothly without producing any abnormal noise due to friction between the rotary lid and the lid frame. Moreover, even if the rotating lid rotates,
The cutting piece does not slide against the opening edge of the bearing hole. Therefore, the degree to which the cut and raised pieces are abraded by the opening edge of the bearing hole is significantly reduced, and the generation of friction noise is prevented.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

As shown in Figs. 1 and 2, this waste container includes a low cylindrical main body 1, a lid frame 2 attached to the upper opening of the main body 1, and a lid frame 2 arranged inside the lid frame 2. The rotary lid 3 is provided with a rotary lid 3, and a weight fitting 4 hanging down from the center of the rotary lid 3.

The lid frame 2 is made of sheet metal and has a top wall 21, an outer wall 22, and an inner wall 23, and the outer wall 22 is fitted onto the outside of the open end 11 of the main body 1. There is. A bearing hole 24 is bored in the center of the inner wall 23 in the longitudinal direction. Bearing hole 24
has a fan shape that expands upward from the lower end latch 24a.

The rotary lid 3 is made of sheet metal and has a top wall 31 and a side wall 32 formed around the periphery of the top wall 31. A vertically elongated through hole 33 is formed in the side wall 32 at a portion corresponding to the bearing hole 24. We are prepared.

The weight fitting 4 is formed by bending a band plate into a U-shape, and has cut and raised pieces 42 protruding outward at both upper ends 41 thereof. The cut and raised piece 42 is a part of the weight fitting 4 cut and raised by a press or the like, and the lower edge 42a on the proximal end is inclined outward and gradually rises, and the lower edge 42b on the distal end is horizontal. It is set in a shape that looks like this. Then, by making use of the elastic deformation of the weight metal fitting 4, both cut and raised pieces 42 are passed through the through hole 33 of the rotary lid 3 from the inside, and their tip portions 42c are inserted into the bearing hole 24 of the lid frame 2. There is. In the assembled state, as shown in FIGS. 3 and 4, the weight fitting 4 is attached to the inner surface of the side wall 32 of the rotary lid 3.
2a, and a horizontal lower edge 42b on the distal end side of the cut and raised piece 42 engages with the lower end latch 24a of the bearing hole 24. Note that the inclined lower edge 42b located on the base end side of the cut and raised piece 42 extends outward through the side wall 32 of the rotary lid 3, and the side wall 32 of the rotary lid 3 and the lid It plays the role of forming a required gap L between the inner wall 23 of the frame 2 and the inner wall 23 of the frame 2.

With such a configuration, when a downward external force is applied to either end of the rotary lid 3 due to a waste insertion operation, etc., the cut and raised pieces 4 will be removed as shown in FIG.
2 is tilted with its lower edge 42b in contact with the lower end latch 24a of the bearing hole 24,
Accordingly, the rotary lid 3 rotates as shown by the imaginary line in FIG. Therefore, even if the rotary lid 3 rotates in such a normal usage mode, the cut and raised pieces 42
does not slide against the opening edge of the bearing hole 24. When a continuous rotational biasing force acts on the rotary lid 3, the cut and raised piece 42 rotates within the bearing hole 24, and in this case, the cut and raised piece 42 and the bearing hole 24 rotate. Although the same type of sliding as before occurs between the two, this situation is extremely rare. Therefore, with this configuration, the degree to which the cut and raised piece 42 is partially abraded by being cut by the opening edge of the bearing hole 24 is significantly reduced. Therefore, the durability can be improved, and the problem of abnormal friction noise occurring during use can be easily solved. Since the above-mentioned cutting phenomenon can be significantly suppressed, it is also possible to make the lid frame 2 that forms the bearing hole 24 thinner, and the overall weight can also be reduced.

Note that the shape of the cut-and-raised piece is, of course, not limited to that of the illustrated embodiment, and in short, any shape that can be tilted by engaging the lower edge with the lower end latch of the fan-shaped bearing hole can be used. Bye.

[Effect of idea]

As described in detail above, according to the present invention, the cut and raised piece is formed so that the lower edge on the proximal end is inclined outwardly and gradually rises, and the lower edge on the distal end is horizontal. Since the rotary lid is supported by the rotary lid, it is easier to manufacture than the one that attaches a special support shaft to the weight metal fitting, and the lid can be easily assembled when attaching the rotary lid to the lid frame. A gap can be reliably formed between the frame and the rotating lid. In other words, if the lower edge of the proximal end of the cut-and-raised piece is inclined as described above, even if the rotary cover is installed on one side, the rotary cover can be fixed by rotating it several times. is automatically centered by gravity, and an even gap is formed on both sides between the lid frame and the rotating lid. Therefore, there is no friction between the lid frame and the rotating lid, so there is no abnormal noise caused by friction.
Durability is improved, and since the cut and raised piece is inserted into the fan-shaped bearing hole and its lower edge on the tip side is tiltably engaged with the latch at the lower end of the bearing hole, the weight bracket Despite using cut-and-raised pieces, we have developed a waste container that can significantly reduce the degree of wear and effectively suppress the generation of abnormal friction noise from the cut-and-raised pieces. This is something that can be provided.

[Brief explanation of the drawing]

1 to 4 show one embodiment of the present invention, FIG. 1 is an exploded perspective view showing the main parts, FIG. 2 is a perspective view showing the whole, and FIG. 3 is a cross section taken along the line - in FIG. FIG. 4 is an enlarged sectional view taken along the - line in FIG. 3. FIGS. 5 and 6 are partial sectional views showing conventional examples, respectively. 1... Main body, 2... Lid frame, 3... Rotating lid, 4...
... Weight fitting, 23 ... Inner wall, 24 ... Bearing hole, 24a ... Lower end latch, 32 ... Side wall, 4
2... cut and raised piece, 42a... lower edge on proximal side, 42b
...lower edge on the tip side.

Claims (1)

[Scope of utility model registration request] A lid frame that is attached to the upper end of the main body and has a fan-shaped bearing hole that expands upward in the center of the inner wall thereof; a rotary lid disposed thereon; and a weight fitting whose upper end is positioned on the inner surface side of the side wall of the rotary lid and is suspended from the rotary lid; The side wall of the rotary lid is penetrated only by a portion of the lower edge of the cut-and-raised piece formed so that the lower edge of the cut-and-raised piece is formed so as to gradually rise outward and the lower edge of the tip side is horizontal. The waste container is inserted into the bearing hole of the lid frame, and the lower edge of the tip side of the cut-and-raised piece is tiltably engaged with the latch at the lower end of the bearing hole.