JPH0349531Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of the Invention This invention relates to a water bottle tip in which a metal cover is fitted onto the outer surface of a synthetic resin tip body.

(b) Background of the invention Conventionally, the above-mentioned water bottle tip (1983-
26568), but this water bottle tip is
A thin metal cover of approximately the same shape as the top body is fitted onto the outer surface of the synthetic resin top body that is attached to the mouth of the water bottle, and the through hole is inserted through the through hole formed at the bottom of the cover. A portion of the larger-diameter mounting member is welded to the bottom of the tip body to secure the cover to the outer surface of the tip body.

However, in the case of the above-mentioned tip, it has a complicated structure in which the mounting member is welded to the tip body and the cover is fixed, so it takes time to assemble, and the number of parts and assembly man-hours increase, resulting in high costs. It had some problems.

Also, if an adhesive sheet is interposed between the tip body and the cover, and the two are bonded together,
As described above, since the process of heating and melting this adhesive sheet is required, the cost remains high.

(c) Purpose of the invention This invention forcibly fits the through hole of the cover into the locking protrusion of the fitting part of the tip body, and the cover is inserted into the U-shaped locking groove on the outside of the periphery of the opening of the tip body. To provide a beautiful and inexpensive water bottle tip, by which a cover is integrally fixed to a tip body by simply inserting the peripheral edge of the opening and fitting a notch into a locking protrusion.

(d) Summary of the invention This invention provides a convex fitting part at the center of the bottom of the tip body, and forms the outer peripheral edge of the opening into a substantially U-shaped cross section, with a locking protrusion inside. A locking groove is formed in the cover, a through hole having a shape corresponding to the fitting portion is formed at a bottom position corresponding to the fitting portion of the cover, and the tip is inserted into the locking groove of the tip body. A notch that engages with the locking protrusion is provided on the peripheral edge of the opening, and a locking protrusion that engages with the through-hole is provided on the outer peripheral surface of the tip body fitting portion that contacts the through-hole of the cover. The present invention is characterized in that it is a water bottle top in which a cover is forcibly fitted to the top body.

(e) Effect of the invention According to this invention, the through hole of the cover is forcedly fitted into the locking protrusion of the fitting part of the tip body, and the U-shaped locking groove on the outer side of the periphery of the opening of the tip body is formed. Simply insert the opening periphery of the cover into the cover and fit the notch of the cover into the locking protrusion provided in the locking groove, and the top and bottom of the two will fit together and be completely integrated, making them durable even after many years of use. They can be firmly fixed without rotating relative to each other.

In addition, the fitting structure is extremely simple and has a beautiful appearance, and other members such as conventional mounting members and adhesive members are not required, thus reducing the number of parts and assembly man-hours, and making it extremely inexpensive. I can do it.

(F) Embodiment of the invention An embodiment of the invention will be described below in detail based on the drawings.

The drawings show a water bottle top, and in FIGS. 1 and 2, the water bottle top 1 includes a synthetic resin top body 3 that is attached to the mouth 2a of the water bottle 2, and a top that is fitted onto the outer surface 3a of the top body 3. The cover 4 is made of thin metal.

The above-mentioned tip main body 3 has a cylindrical fitting portion 6 formed in the bottom portion 5 in a convex shape toward the outer surface 3a. Further, a cover 4, which will be described later, is provided on the circumferential surface 6a of the fitting portion 6.
An annular locking protrusion 6b for locking the through hole 11a is provided at a position on the circumferential surface that abuts the through hole 11a, and the thickness of the cover 4 is measured from the bottom to the upper side of the fitting part 6. is formed.

Note that the locking protrusion 6b may include a plurality of protrusions arranged in a ring shape.

Furthermore, a female thread 8 is threaded on the inner peripheral surface of the opening 7 of the top body 1, and this female thread 8 is screwed into a male thread 2b threaded on the outer peripheral surface of the mouth 2a of the water bottle 2. 1 can be attached to the opening 2a of a water bottle 2.

As shown in FIGS. 4 and 5, a locking flange 10 is formed on the outer peripheral surface of the opening 7, as shown in FIGS. 4 and 5. This locking collar 10 has
A locking groove 10a having a U-shaped cross section is formed on the back side, and a locking protrusion 10b is formed inside the locking groove 10a.

The aforementioned cover 4 is formed into a cylindrical shape that roughly follows the outer surface 3a of the tip body 3, as shown in FIG. A through hole 11a having substantially the same diameter as the fitting portion 6 formed in the above-mentioned tip body 3 is formed in the bottom portion 11 of the cover 4.

The through hole 11a is formed to have a slightly larger diameter than the upper part of the fitting part 6 and a slightly smaller diameter than the lower part.

Further, the peripheral edge portion 11b of the through hole 11a forms a taper that curves outward.

Furthermore, the peripheral edge 12a of the cover 4 on the opening 12 side
The end portion 12b is bent toward the outer circumferential surface so that it can be engaged with the locking groove 10a of the locking collar 10 described above. Further, the end portion 12b is formed with a notch 12c having a size to engage with the locking protrusion 10b of the locking groove 10a.

The above-mentioned cover 4 is manufactured by cutting a thin-walled metal cylinder 13 formed into a cylindrical shape to a predetermined size (indicated by a dotted line in the figure) to form a small cylinder 13a as shown in FIG.
After that, one end of the small cylindrical body 13a is bent inward to form a through hole 11a, and the other end is folded toward the outer circumferential surface to form an opening 12, which is approximately the same shape as the tip body 1. It is formed in a size that can be fitted onto the outer surface 3a.

Note that this processing is performed by press processing.

When fitting the cover 4 to the tip main body 3 constructed as described above, insert the bottom 5 side of the tip main body 3 through the opening 12 of the cover 4, and insert the fitting part 6 of the bottom 5 into the cover 4. It fits into the through hole 11a of.

At this time, the through hole 11a is connected to the locking protrusion 6 of the fitting part 6.
b, and insert the through hole 11a into the fitting part 6.
By fitting into the lower part of the through hole 11a, the inner end 1 of the through hole 11a
1c is locked to the locking protrusion 6b, and the through hole 11a
can be held in a fixed state.

At the same time, the peripheral edge 12a of the cover 4 on the opening 12 side
is engaged with the locking groove 10a of the locking collar 10 of the tip main body 3. At this time, the notch 12c of the cover 4
By matching the locking protrusion 10b of the locking groove 10a, rotation of the cover 4 in the circumferential direction can be completely prevented. Further, the end 12b of the peripheral edge 12a on the side of the opening 12 slightly bites into the inner wall 10c of the locking groove 10a to prevent the cover from coming off.
can be firmly fixed.

In this manner, the water bottle tip 1 in which the cover 4 is fitted onto the tip body 3 is forcibly fitted with the through hole 11a into the locking protrusion 6b of the fitting part 6, and the U
The opening periphery 12a of the cover 4 is located inside the letter-shaped locking groove 10a.
A locking protrusion 10b provided in the locking groove 10a by inserting the
By simply fitting the notch 12c of the cover into the cover, the top body 3 and the cover 4 can be completely integrated and fixed firmly and beautifully, and the water bottle top 1 can be constructed only by the top body 3 and the cover 4. Because of this, the number of parts is small and assembly is easy.

Moreover, since the cover 4 is made of a cylindrical metal material, mass production is easy, yields are high, and it can be manufactured at extremely low cost.

FIG. 7 shows the locking protrusion 6b formed on the fitting part 6.
Another example is shown in which the locking protrusion 6b is formed at a position where it contacts the through hole 11a when it is fitted, and in this case, when fitting the through hole 11a to the fitting part 6, the head of the locking protrusion 6b is Press and force fit.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a perspective view of a water bottle tip, Fig. 2 is a vertical sectional view of the water bottle tip, and Fig. 3 shows the fitted state of the fitting part and the through hole. An enlarged sectional view, FIG. 4 is an enlarged sectional view of the main part of the water bottle tip, and FIG. 5 is an A-A sectional view of the water bottle tip.
FIG. 6 is a perspective view showing the manufacturing stage of the cover, and FIG. 7 is an enlarged sectional view showing another example of the locking protrusion formed on the fitting portion. 1... Water bottle tip, 2... Water bottle, 3... Tip body, 3a... Outer surface, 4... Cover, 6... Fitting portion, 6a... Locking protrusion, 7... Tip body opening , 10a...Latching groove, 10b...Latching protrusion, 1
1a...through hole, 12c...notch.

Claims (1)

[Scope of Claim for Utility Model Registration] A pot for a water bottle in which a thin metal cover 4 having substantially the same shape as the cup body is fitted onto the outer surface of a cup body 1 made of synthetic resin, the center portion of the bottom of the cup body. Convex fitting part 6
A locking groove 1 is provided, and the outer peripheral edge of the opening 7 is formed into a substantially U-shaped cross section, and a locking protrusion 10b is provided inside.
0a, and a through hole 11a having a shape corresponding to the fitting part 6 is formed at a bottom position of the cover 4 corresponding to the fitting part 6, and is inserted into the locking groove 10a of the tip main body. The locking protrusion 10 is provided on the opening peripheral portion 12a.
A notch 12c that engages with b is provided, and a locking protrusion 6 that engages with the through hole is provided on the outer peripheral surface of the tip main body fitting portion 6 that comes into contact with the through hole of the cover.
A water bottle tip with a cover 4 forcefully fitted onto a tip main body 1.