JPS593715Y2 - Buffer for nipple cut liner - Google Patents

Description

[Detailed description of the invention] This invention is based on the tube end of the nipple cup liner of the breast pump.
This invention relates to a buffer at the end of a tube that is press-fitted into a pipe nipple.

In instruments conventionally used for milking dairy cows, the teat cup liner of the milking machine is connected to a so-called hole kneading tool by slip-fitting the tube end of the teat cup liner into a pipe nipple.

The end of this tube is cut diagonally and attached to a breast massager.

The milk is conveyed through a joint configured to be maintained under vacuum within the milking device.

The connection between the teat cup liner and said pipe nipple can be closed by placing the breast pump in a hanging position.

This is distantly related in such a way that a portion of the tube wall has an upwardly facing sloping nipple end.

This known device has the disadvantage that the tube end of the teat cup liner, which is unavoidably subjected to shock during the milking operation, is damaged by the sloping nipple end and even leaks occur.

In order to eliminate this drawback, the tube is integrated with the end of the tube.
Attempts have been made to address this by forming the tube end of the nipple cup liner into a thickened sleeve made from rubber.

However, apparently such devices did not solve this problem.

Additionally, making breast massager connections for nipple cup liners with beveled ends is quite expensive.

The purpose of the present invention is to eliminate the above-mentioned drawbacks, by being able to close the nipple cup liner from the breast massager, regardless of the design of the coupling pipe nipple, and at the same time eliminating the risk of damage due to impact. An object of the present invention is to provide a cushioning device for a nipple cup liner as described above.

As well as conventionally slanting the above-mentioned coupling pipe nipples, the ends can also simply be formed with a right-angled cross-section.

According to the present invention, on the outside of the tube end of the nipple cup liner buffer described at the beginning, elongated protrusions made of an elastic material and extending in the axial direction are arranged approximately evenly around the tube end. is provided.

By forming the buffer in this way, these protrusions absorb impact energy, thereby effectively protecting the nipple cup liner from damage caused by impact.

Further, since these protrusions extend in the axial direction, the nipple cup liner has the advantage that it is difficult to be cut no matter how many times it is bent.

The thickened wall at the tube end of the teat cup liner does not contribute to this protective effect, but, without absorbing any energy, transmits shocks which have the effect of wearing the tube end to the contact area between the tube end and the pipe nipple.

According to the proposed design, the tube ends are protected in all possible positions when the tube is held straight or at an angle.

Furthermore, regardless of whether the pipe nipple design is an inclined type or a right-angled cross-section type, as will be clear from the following description, the nipple cup liner can be connected to a breast-massage device by simply hanging the breast pump down. It can be closed from

In a preferred embodiment of the damper, the projection is substantially ridge-shaped, the plane of symmetry extending radially from the longitudinal axis of the tube end.

In one particularly preferred embodiment, the axial length of the projection is at least l+ times the diameter of the tube end.

For best results, the height of the protrusion measured from the outside surface of the tube end should be about 20 to 3 times the outside diameter of the tube.
Must be 0%.

In one particularly preferred embodiment, the bumper has 12 to 20 projections.

From a manufacturing standpoint, the protrusion is integrated with the nipple cup liner,
Thus, it is particularly advantageous to provide the nipple cup liner and its cushion with projections made of a single rubber component.

Hereinafter, the nipple cup liner cushioning device according to the present invention will be described in detail with reference to the drawings of embodiments.

FIG. 1 is a side view of a cushioning device for a nipple cup liner according to the present invention, and FIG. 2 is a sectional view taken along line II--II in FIG.

FIG. 3 is a side view, partially in section, of a breast pump with the tube end of a teat cup liner snugly fitted to a sloped pipe nipple of a breast massager.

Figure 4 is a sectional view similar to Figure 3 in the closed position;
The figure shows the shock absorber according to the invention installed on a pipe nipple, where the pipe nipple is cut at right angles and the tube end is in the closed position.

In Figure 3, 1 is a breast pump, 2 is a breast massager, and 3 is a breast pump.
indicates the wide end of the nipple cup liner.

4 is the other end of the teat cup liner, which is screw-fitted into the inclined pipe nipple 5.

A buffer 6 is provided at the other end 4.

As is not clear from FIGS. 1 and 2, this buffer 6
It is formed from a large number of protrusions 7 in the shape of ridges.

As shown in FIG. 4, the connection of the teat cup liner 9 to the inclined pipe nipple 5 is closed by bending the teat cup liner 9 downward, and the inclined opening is closed by the teat cup liner 9. .

In FIG. 5, if the nipple cup liner 9 is equipped with the shock absorber 6 according to the present invention, it can be closed by bending downward even when the nipple cup liner 9 is press-fitted into the right-angled cross-section pipe nipple 8. will be understandable.

In this case, the nipple cup liner 9 is folded back onto the remaining portion of the nipple cup liner 9 from the end where the stiffness is increased by the shock absorber 6 and is tightened.

[Brief explanation of drawings]

Fig. 1 is a side view of a cushioning device for a nipple cup liner according to the present invention, Fig. 2 is a sectional view taken along line II-II in Fig. 1, and Fig. 3 is a slanted pipe nipple of a breast massager. FIG. 4 is a side view, partially in section, of a breast pump with the tubular end of the teat cup liner screw-fitted; FIG.
A cross-sectional view similar to that shown in FIG. 5 shows the shock absorber according to the invention installed on a pipe nipple, the pipe nipple having a right-angled cross-section and the tube end in the closed position. 1... Breast pump, 2... Breast massaging tool, 3.
...One end of the nipple cup liner, 4...The other end of the nipple cup liner, 5...Slanted pipe nipple, 6...Buffer, 7... ····protrusion,
8...Right-angle section type pipe nipple, 9...
...Nipple cup liner.

Claims (1)

[Scope of utility model registration request] 1. A cushioning device for a nipple cup liner of a breast pump having a tube end that is press-fitted into a pipe nipple, the cushioning device being made of an elastic material and arranged approximately uniformly around the outer periphery of the tube end in the outer, approximately axial direction. A cushioning device for a nipple cup liner, characterized in that it is provided with an elongated projection. 2. The shock absorber for a nipple cup liner according to claim 1, wherein the projections are formed in a substantially ridge shape, and the plane of symmetry extends radially from the longitudinal axis of the tube end. 3. The axial length of the protrusion is at least 1 the outer diameter of the tube end.
+ times the cushioning device for a nipple cup liner according to claim 1 or 2 of the utility model registration claim. 4. The nipple cup according to any one of claims 1 to 3, wherein the height of the protrusion determined from the outer surface of the tube end is about 20 to 30% of the outer diameter of the tube end. Buffer for liner. 5. The cushioning device for a nipple cup liner according to any one of claims 1 to 4 of the utility model registration claim, which has 12 to 20 protrusions. 6. A cushioning device for a nipple cup liner according to any one of claims 1 to 5 of the registered utility model, wherein the protrusion is integral with the nipple cup liner.