JP2600623Y2 - Oil filler cap - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an oil filler cap screwed into an oil supply port of engine oil.

[0002]

2. Description of the Related Art Conventionally, an oil filler cap 1 which is detachably attached to an oil supply port for supplying engine oil has a structure as shown in FIG. The cap body 2 has a screw portion 4 to be screwed into an oil filler port, and a flange portion 5 which is expanded at the upper end of the screw portion 4 to be integrally formed. At the center, an insertion hole 6 which is open at the top and is depressed toward the screw portion 4 is formed.
A plurality of spline grooves 7 are formed in the inner peripheral surface in the vertical direction. On the other hand, the lid 3 has a disk portion 8 which is provided so as to abut on the upper surface of the flange portion 5 of the cap main body 2.
A plurality of elastic claws 9, 9, 9 are suspended, and each elastic claw 9,
Notches 10, 10, 10 are formed between 9, 9 like gaps. A ridge 11 is integrally formed in the center of the outer surface of each elastic claw 9 in the vertical direction. Further, outer peripheral claws 12 are formed integrally with the outer periphery of the disk portion 8 in a hanging manner at predetermined intervals.

[0003] In such an oil filler cap 1, elastic claws 9, 9, 9, 9
9, the protrusion 11 is engaged in the spline groove 7, the disk portion 8 is covered on the upper surface of the flange portion 5 of the cap body 2, and the cap body 2 and the lid 3 are integrated, By turning a knob formed on the upper surface of the lid 3, the ridge 11 is formed.
Is engaged in the spline groove 7, the turning force is transmitted to the cap body 2, and the screw portion 4 of the cap body 2 is
Can be screwed into the filler port, and when the cap body 2 is to be detached, the cap body 2 can be detached by turning the lid 3 in the opposite direction. If the tightening force is excessive, the elasticity of the elastic claw 9 causes the ridge 11 to be disengaged from the spline groove 7 so that the lid 3 does not rotate with respect to the cap body 2 to prevent excessive tightening force. Is configured.

In such a conventional structure, when an excessive tightening force or the like is applied many times or the like, the ridge 1
1, 11, 11 are often damaged, and when the ridge 11 is damaged, even if the cover 3 is integrated with the cap body 2 and the cover 3 is turned, the rotational force is transmitted to the cap body 2. However, there is a problem that the cap body 2 cannot be attached or detached simply because the lid body 3 rotates idly.

[0005]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned conventional problems, and enables the cap body to be attached and detached satisfactorily even when the ridge of the lid is broken. The first gist of the present invention is to provide an oil filler cap having an enlarged diameter flange at the upper end of a screw portion and a centrally formed insertion hole having an open upper surface. A cap body in which a plurality of spline grooves are formed at a predetermined angle on the inner periphery of the insertion hole, and a cap that can be inserted into the insertion hole at the center of a disc portion covered on the upper surface of the flange portion of the cap body. In an oil filler cap comprising an elastic claw vertically provided and a lid formed with a ridge engaged with the spline groove on the outside of the elastic claw, a disk portion of the lid includes: A through hole through which a thinner bar material can be inserted is formed, and the key The flange portion upper surface of the-up body, a lower end portion of the bar that is suspended through the through-hole is that the formation of the lockable recessed hole or protrusion. A second gist is that a threaded portion has a flange portion with an enlarged diameter at an upper end thereof, an insertion hole having an open upper surface is formed at a center portion, and a plurality of holes are formed at a predetermined angle on an inner periphery of the insertion hole. A cap body having a spline groove formed therein, and an elastic claw suspended from the center of a disc portion covered on the upper surface of the flange portion of the cap body so as to be able to be inserted into the insertion hole. And a lid formed with a ridge engaged with the spline groove, a tool inserted from above into the insertion hole at the bottom surface of the insertion hole of the cap body. Has formed a tool hook that can be engaged.

[0006]

In the first aspect, a through hole is formed in the lid, and a concave hole or a projection is formed in the cap body, so that when the ridge of the lid is damaged, etc. When the lid body idles with respect to the cap body, a thinner bar member is inserted into the through hole from above, and the lower end of the bar material is engaged with the recessed hole or the projection, so that the lid member is interposed between the lid member and the through hole. Can be forcibly connected to the cap body, and by turning the lid in this state, the cap body can be satisfactorily turned. In the second aspect, since the tool hook is formed on the bottom surface of the insertion hole of the cap main body, when the lid body idles, for example,
Remove the lid from the cap body, insert a tool from above into the insertion hole of the cap body, engage the tool with the tool hook on the bottom of the insertion hole, turn the cap body via the tool, the cap The main body can be attached and detached.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a cap main body and a lid according to the first embodiment. The same components as those of the conventional structure shown in FIG. In this example, a through hole 13 is formed in the disk portion 8 of the lid 3 so as to penetrate vertically and the through hole 13 is formed at a position between the outer periphery of the disk portion 8 and the elastic claw 9. It can be formed individually. On the other hand, on the upper surface of the flange 5 of the cap body 2, a concave recess 14 or a projection 15 projecting upward from the flange 5 can be formed.

When the ridge 11 of the lid 3 is not damaged, the ridge 11 is engaged in the spline groove 7 and
When the lid 3 is rotated, the cap body 2 is also rotated through the ridges 11 and the spline grooves 7, so that the cap body 2 can be attached to and removed from the filler port satisfactorily, but the ridges 11 are damaged. In such a case, since the lid 3 rotates idly, in this case, a thinner rod is inserted into the through hole 13 and the lower end of the rod is inserted into the concave hole 14 on the cap body 2 side. Or, it is engaged with the projection 15. If the cover 3 is turned in this state, the rotational force is forcibly transmitted to the cap body 2 via the bar, so that
The cap body 2 can be attached and detached satisfactorily.

The number of the through holes 13 may be two or more, and the number of the concave holes 14 and the projections 15 may be two or more. As described above, in this example, when the protrusion 11 of the lid 3 is damaged and a state in which the rotational force is not transmitted to the cap body 2 occurs, the rod is inserted into the through hole 13 using the rod. With the lid 3 and the cap main body 2 being forcibly connected to each other, the cap main body 2 can be attached and detached by rotating the cap main body 2 through a bar.

Next, FIG. 2 shows a second embodiment, and FIG. 2 shows a partially cutaway perspective view of only the cap body 2. The lid 3 having the same structure as the conventional one shown in FIG. 3 is connected to the cap body shown in FIG. In the center of the bottom surface of the insertion hole 6 of the cap body 2 in this example, a bolt-shaped tool hook 16 is formed to protrude upward, and the ridge 11 of the lid 3 is damaged and the lid 3 is damaged. Is idle, the lid 3 is removed from the cap body 2 and a tool is inserted into the tool insertion hole 6 in that state.
The cap main body 2 is engaged with the tool
Can be turned, and even when the ridge 11 of the lid 3 is broken, the cap body 2 can be satisfactorily rotated via a tool to be attached and detached. In this example, the tool hook 16 is formed to project like a bolt head.
May be formed in a concave shape on the bottom surface of the insertion hole 6 and may be not only hexagonal but also rectangular, cross-shaped or the like.

[0011]

[Effect of the Invention] The present invention has a flange portion having an enlarged diameter at the upper end of the screw portion, and an insertion hole having an upper surface opened at the center portion.
A cap body having a plurality of spline grooves formed at a predetermined angle on an inner periphery of the insertion hole; and a cap body inserted into the insertion hole at a center of a disk portion covered on an upper surface of a flange portion of the cap body. An oil filler cap, comprising: an elastic claw suspended vertically; and a lid formed with a ridge engaged with the spline groove on the outside of the elastic claw. Is formed with a through-hole into which a thinner bar material can be inserted from above, and a concave hole or projection on the upper surface of the flange portion of the cap body which can lock the lower end portion of the bar material hanging down through the through-hole. In the case where the ridges of the lid are broken and the lid idles with respect to the cap body due to the formation of the cap body, a thinner bar is inserted into the through hole of the lid from above, and the bar is inserted into the cap body. Engages with the recess or projection formed on the side And a forcibly connecting state of the cap body, the cap body is rotated together with the lid has the effect of making it possible to perform the mounting and removal.
In addition, by forming a tool engaging portion on the bottom surface of the insertion hole of the cap body with which a tool inserted into the insertion hole from above can be engaged, the ridge of the lid is damaged, and the lid rotates idly. Occurs, remove the lid from the cap body, insert a tool into the insertion hole of the cap body in this state, engage the tool with the tool hook on the bottom of the insertion hole, and By rotating the cap main body, there is an effect that the cap main body can be attached and detached.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an oil filler cap according to a first embodiment.

FIG. 2 is a partially cutaway perspective view of a cap body constituting an oil filler cap according to a second embodiment.

FIG. 3 is an exploded perspective view of a conventional oil filler cap.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oil filler cap 2 Cap main body 3 Lid 4 Screw part 5 Flange part 6 Insertion hole 7 Spline groove 8 Disk part 9 Elastic claw 10 Notch part 11 Protrusion 13 Through hole 14 Depression hole 15 Projection 16 Tool holder

Claims (2)

(57) [Scope of request for utility model registration] An insertion hole having an enlarged diameter is formed at an upper end of a screw portion, and an insertion hole having an open upper surface is formed at a center portion. A cap main body 2 in which a plurality of spline grooves 7 are formed, and an elastic claw 9 that can be inserted into the insertion hole 6 at the center of a disc portion 8 that is covered on the upper surface of the flange portion 5 of the cap main body 2. A disk portion of the lid body 3, wherein the oil filler cap 1 comprises a lid body 3, which is vertically provided and has a ridge 11 engaged with the spline groove 7 outside the elastic claw 9. 8, a through hole 13 into which a thinner bar material can be inserted from above is formed, and a lower end portion of a bar material hanging down through the through hole 13 is locked on the upper surface of the flange portion 5 of the cap body 2. An oil filler cap, wherein a possible concave hole 14 or projection 15 is formed. 2. An insertion hole 6 having an enlarged diameter at an upper end of the screw portion 4 and having an upper surface opened at a center portion, and an inner periphery of the insertion hole 6 is formed at a predetermined angle. A cap main body 2 in which a plurality of spline grooves 7 are formed, and an elastic claw 9 that can be inserted into the insertion hole 6 at the center of a disc portion 8 that is covered on the upper surface of the flange portion 5 of the cap main body 2. The oil filler cap 1 comprising a vertically extending lid 3 formed with a ridge 11 engaged with the spline groove 7 outside the elastic claw 9. 6. An oil filler cap, wherein a tool hook 16 is formed on the bottom surface of the insertion hole 6 so that a tool inserted into the insertion hole 6 from above can be engaged.