JP2542088Y2 - Refueling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Field of the Invention The present invention relates to a refueling device used for an oil burner such as an oil fan heater and receiving fuel supplied from a cartridge tank.

(B) Conventional technology A conventional oiling device of this type is disclosed, for example, in Japanese Utility Model Laid-Open No. 62-2953.
As disclosed in Japanese Unexamined Patent Publication No. 2 (1994), an oil receiving tray is provided in an oil tank to be supplied with petroleum fuel from a cartridge tank, and a filter is provided on an inner bottom surface thereof so as to cover an oil supply port provided in a bottom wall of the oil receiving tray. Have been placed. By the way, since this filter is usually fixed to the oil pan by bonding or welding, if the filter is damaged during cleaning, it is necessary to replace not only the filter but also the oil pan. It was very uneconomical.

Therefore, in recent years, a filter has been commercialized in which the filter is removably attached to the oil pan, and when the filter is damaged, only the filter needs to be replaced. Next, this conventional apparatus will be described with reference to FIGS. 5 and 6. FIG. That is, (a) is the bottom wall (b)
The oil receiving tray (a) is made of oil-resistant synthetic resin, and the oil receiving tray (a) has an outer peripheral edge of the oil receiving port (c). And a plurality of inverted L-shaped locking projections (d) and (d) project upward from the bottom wall (b). (E) is a filter in which a plurality of notches (f) and (f) are formed on the outer peripheral edge thereof.
The edges of the oil receiving tray (a) with the locking projections (d)
By being locked to (d), it can be detachably attached to the inner bottom of the oil receiving tray (a) so as to cover the oil filler port (c).

(C) Problems to be Solved by the Invention In the above-described conventional apparatus, when the filter is damaged, only the filter can be replaced. However, a part of small dust mixed in the petroleum fuel is notched ( F) There is a drawback that the electromagnetic pump or fuel supply passage that feeds fuel into the burner through the oil supply port (c) through the fuel supply port (c) passes through the fuel supply passage.

The present invention has been made in view of the above situation,
A refueling device that allows the filter to be replaced while preventing small dust mixed in petroleum fuel from leaking out of the oil pan, and also makes it easy to attach the filter to the oil pan and does not complicate filter molding. The purpose is to provide.

(D) Means for Solving the Problems The present invention comprises a bottomed cylindrical oil pan having an oil supply port on a bottom wall, and a filter removably attached to the inner bottom of the oil pan. A plurality of wedge-shaped locking projections are provided on the inner surface of the peripheral wall of the tray at a predetermined distance from the bottom wall, and the filter is made of an elastic material, and the inner bottom of the oil tray is provided. It is formed in a disk shape having an outer diameter larger than the diameter of the disk, and is further inserted into a position below the locking projection to lock an outer peripheral edge thereof to the plurality of locking projections. The configuration is such that the oil receiving tray is held in such a shape as to abut on both the inner surface of the bottom wall and the inner surface of the peripheral wall of the oil pan.

(E) Operation With this configuration, the filter can be detachably attached to the inner bottom of the oil pan, so that if the filter is damaged, only the filter needs to be replaced.

The filter is made of a material having elasticity, and is formed in a disk shape having an outer diameter larger than the diameter of the inner bottom of the oil receiving tray. By locking the outer peripheral edge of the filter to the plurality of locking projections, the filter is held in such a shape as to abut on both the inner surface of the bottom wall and the inner surface of the peripheral wall of the oil receiving tray. The inner surface of the peripheral wall can be elastically intimately contacted over both surfaces, so that a gap is prevented from being formed between the filter and the inner surface of the oil receiving tray. Therefore, even small dust can be reliably received by the filter.

Since a plurality of wedge-shaped locking projections are provided on the inner surface of the peripheral wall of the oil receiving tray at a predetermined interval from the bottom wall,
The filter is stably held on the inner bottom of the oil pan simply by climbing over the plurality of locking projections, so that the filter can be easily attached.

The filter does not need to be formed into a shape that abuts on both the inner surface of the bottom wall and the inner surface of the peripheral wall of the oil pan, and the shape before mounting on the oil pan can be a disk shape, which makes it difficult to form the filter. And never.

(F) Embodiment An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, (1) is an oil tank for storing petroleum fuel to be supplied to a burner (neither is shown) via an electromagnetic pump and a fuel supply pipe, and (2) is inverted on the oil tank (1). This is a detachable cartridge tank for replenishing fuel into the oil tank (1), and this cartridge tank (2) is provided with an oil filler cap (3) having a built-in on-off valve (not shown). An oil pan (4) is detachably mounted on an opening (5) above the oil tank (1). The oil pan (4) is made of oil-resistant synthetic resin and has a bottom wall (4A). ) Is the filler cap (3)
And a valve push-up pin (6) for opening / closing the on-off valve, and a plurality of refueling ports (7) (7) are opened in a bottom wall (4A) around the valve push-up pin (6). . Further, as shown in FIG. 4, the inner surface of the peripheral wall (4B) of the oil receiving tray (4) has a plurality (in the embodiment, a distance (S)) of about 5 to 8 mm from the upper surface of the bottom wall (4A). (4) downwardly extending wedge-shaped locking projections (8), (8).
(9) (9) is a plurality of vertical slit-shaped vents provided above the peripheral wall (4B), and (10) is an outwardly directed annular flange formed at the upper end of the peripheral wall (4B). Two outward protrusions (11) and (11) are formed on the upper part of the peripheral wall (4B) about 5 to 7 mm below the flange (10), and the outward protrusion (11) and the flange ( 10) sandwiches the periphery of the opening (5) of the oil tank (1).

An elastic spongy filter (12) is detachably attached to the inner bottom of the oil pan (4). This filter (12) is formed in a disk shape having a hole (13) in the substantially center, and its outer diameter (L) is set to the diameter (T) of the inner bottom of the oil receiving pan (4) as shown in FIG. It is set larger than. That is, the diameter (T) of the inner bottom of the oil receiving tray (4) is about 38 mm, while the outer diameter (L) of the filter (12) is about 43 mm.

In the above configuration, when the cartridge tank (2) is inverted on the oil tank (1), the valve push-up pin (6) opens the opening / closing valve of the filler cap (3), and the oil fuel in the cartridge tank (2) is opened. Escapes into the oil pan (4). After the fuel in the oil pan (4) passes through the filter (12), it is stored in the oil tank (1) through the refueling port (7) and then supplied to the burner.

Next, attachment of the filter (12) to the oil pan (4) will be described. First, insert the filter (12) into the oil pan (4) so that it is parallel to the bottom wall (4A) of the oil pan (4), and push the valve up into the center hole (13) of the filter (12). When the pin (6) is inserted, the entire periphery of the filter (12) is bent upward and pressed against the inner surface of the oil pan (4). In this state, when the filter (12) is further pushed into the bottom wall (4A) side of the oil pan (4), the periphery of the filter (12) spreads downward and gets over the wedge-shaped locking projection (8). In this state, as shown in FIG. 2, the upper edge of the outer periphery of the filter (12) is locked by the plurality of locking projections (8), (8), and the oil pan (4)
Of the bottom wall (4A) and the inner surface of the peripheral wall (4B).

According to this embodiment, since the filter (12) is detachably attached to the inner bottom of the oil pan (4),
If the filter (12) is damaged by mistake, the filter (12) can be removed from the oil pan (4) and replaced easily.

The filter (12) is made of a material having elasticity, and has a disk-like shape having an outer diameter (L) of about 43 mm, which is larger than the inner bottom diameter (T) of about 38 mm of the oil pan (4). And inserted into a position below the locking projection (8) to lock the outer peripheral edge thereof to the plurality of locking projections (8), (8), so that the oil receiving tray (4) Since the filter (12) is configured to be held in contact with both the inner surface of the bottom wall (4A) and the inner surface of the peripheral wall (4B), the filter (12) is connected to the inner surface of the bottom wall (4A) of the oil pan (4) and the peripheral wall ( 4B) It is possible to elastically close both sides of the inner surface, and there is no gap between the filter (12) and the upper surface of the bottom wall (4A) and the inner surface of the peripheral wall (4B) of the oil pan (12). , The small dust mixed in the fuel is reliably received by the filter (12), and the dust is trapped in the oil tank (1). Possible so as not et al.

A plurality of wedge-shaped locking projections (8) are formed on the inner surface of the peripheral wall (4B) of the oil receiving tray (4) at an interval (S) of about 5 to 8 mm from the inner surface of the bottom wall (4A). Since the filter (12) is provided, the filter (12) can be stably held on the inner bottom of the oil pan (4) only by climbing over a plurality of wedge-shaped locking projections (8) and (8). Therefore, the filter (12) can be easily attached.

The filter (12) is located on the bottom wall (4) of the oil pan (4).
A) The filter (12) does not need to be formed into a shape that abuts on both the inner surface and the inner surface of the peripheral wall (4B), and the shape before mounting on the oil pan (4) may be a disk shape.
Is not complicated.

(G) Effect of the Invention As is apparent from the above description, the oil supply device according to the present invention has a bottomed cylindrical oil pan having an oil supply port on the bottom wall, and is detachably attached to the inner bottom of the oil pan. A filter, and a plurality of wedge-shaped locking projections are provided on the inner surface of the peripheral wall of the oil receiving tray at a predetermined distance from the bottom wall, and the filter is made of an elastic material. The oil receiving tray is formed in a disk shape having an outer diameter larger than the diameter of the inner bottom of the oil receiving tray, and is further inserted at a position below the locking projection to fit an outer peripheral edge thereof to the plurality of locking projections. By locking, the oil receiving tray is held in such a shape that it is in contact with both the inner surface of the bottom wall and the inner surface of the peripheral wall, so that the following effects are obtained.

Since the filter can be removably attached to the inner bottom of the oil pan, if the filter is not damaged, only the filter needs to be replaced, which is economical.

It is possible to make the filter formed in a disk shape elastically close to both the inner surface of the bottom wall and the inner surface of the peripheral wall of the oil pan, and there is no gap between the filter and the inner surface of the oil pan. And the fuel pump and the fuel supply path can be prevented from clogging.

The filter can be stably held on the inner bottom of the oil pan simply by climbing over the plurality of wedge-shaped locking projections extending downward, so that the filter mounting workability can be improved.

The filter does not need to be formed into a shape that abuts on both the inner surface of the bottom wall and the inner surface of the peripheral wall of the oil pan, and the shape before mounting on the oil pan can be a disk shape. Never be.

[Brief description of the drawings]

1 to 4 show an embodiment of a fuel supply device according to the present invention. FIG. 1 is a sectional view of a main part when a cartridge tank is inverted on an oil tank, and FIG. FIG. 3 is a cross-sectional view of a portion along the line BB in FIG. 2, FIG. 4 is a cross-sectional view of the filter and the oil pan with the filter removed, FIG.
FIG. 6 is a cross-sectional view showing a conventional example, and FIG. 6 is a cross-sectional view of a portion along line AA in FIG. (4) Oil pan, (4A) Bottom wall, (4B) Peripheral wall, (7) Oil filler port, (8) Locking projection, (12)
… Filter, (L)… Filter outer diameter,
(T) ... The diameter of the inner bottom of the oil pan.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Takao Arai 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Masanobu Numa 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Yo-Eki Co., Ltd. (56) References Japanese Utility Model Sho-56-98306 (JP, U) Japanese Utility Model Utility Model No. 2-36736 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] A bottomed cylindrical oil receiving tray having an oil supply port on a bottom wall; and a filter removably attached to an inner bottom of the oil receiving tray. A bottom wall is formed on an inner surface of a peripheral wall of the oil receiving tray. A plurality of wedge-shaped locking projections extending downward at predetermined intervals are provided, and the filter is made of a material having elasticity, and has an outer diameter dimension larger than a diameter of an inner bottom portion of the oil pan. The bottom surface of the oil receiving tray and the inner surface of the peripheral wall of the oil receiving tray are formed by inserting into a position below the locking protrusion and locking the outer peripheral edge thereof to the plurality of locking protrusions. Characterized in that the lubrication device is held in a shape that abuts over both surfaces of the oil supply device.