JP2528136Y2 - Hose mounting structure for air pump - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to a hose mounting structure for an air pump, more specifically, a hose connected to a tire tube in an air pump for injecting air into a tire tube of a bicycle or the like. To an air pump body.

<Prior Art> A conventional air pump hose mounting structure is generally configured such that a hose rear end in which a sleeve is previously fitted is removed from the outside of the pump housing to a nipple protruding from the outer periphery of the pump housing of the air pump body. The hose was fitted, the sleeve was crimped, and the rear end of the hose was attached to the air pump body.

<Problem to be Solved by the Invention> However, in such an air pump, the swaged sleeve is exposed to the outside, so that the design property is likely to be impaired. There was a problem that the work was complicated.

This invention pays attention to the above problems, and an object of the present invention is to provide a hose mounting structure for an air pump which is excellent in design and easy in hose mounting work.

<Means for Solving the Problems> In order to solve this problem, the hose mounting structure for an air pump of the present invention is a structure for mounting a hose connected to a tire tube or the like to an air pump main body, and is provided after the hose. A nipple member fitted into the end,
The rear end of the hose formed in the pump housing and into which the nipple member is fitted includes a locking hole press-fitted from inside the pump housing.

<Effects of the Invention> In this invention, the rear end of the hose in which the nipple member is fitted is locked by a locking hole formed in the pump housing, and the hose is attached to the air pump body. Therefore, there is no need to provide a sleeve as described above, and therefore, the design is excellent, and the hose mounting operation is facilitated without caulking.

An embodiment of the present invention will be described below with reference to the drawings.

The hose mounting structure for the air pump according to this embodiment is:
It is applied to an air pump with an auxiliary tank.

As shown in FIGS. 1 and 2, this hose mounting structure for an air pump has a nipple member 2 fitted into a rear end 1a of a hose 1 connected to a tire tube (not shown) or the like.
And formed in the auxiliary tank part (pump housing) 3.
A rear end portion 1a of the hose into which the nipple member 2 is fitted includes an engaging hole 4 which is press-fitted from inside the auxiliary tank portion 3. Here, the outer diameter of the hose 1 is set substantially equal to the inner diameter of the locking hole 4, and the inner diameter of the hose 1 is set to be equal to or larger than the minimum outer diameter of the tip 2a of the nipple member 2, Further, the maximum outer diameter of the rear end portion 2b of the nipple member 2
It is set smaller than the inner diameter of. The nipple member 2 has a projection 5 formed on the outer peripheral side surface.

To realize the air pump hose mounting structure having the above configuration, first, a nipple member 2 is attached to the hose rear end 1a.
And the hose 1 is inserted from the inside of the auxiliary tank portion 3 into the locking hole 4 with the hose end portion 1b at the top, and the auxiliary tank portion 3 is inserted.
Take it outside and pull the hose 1 from outside the auxiliary tank 3. Then, since the hose 1, the nipple member 2 and the locking hole 4 are set as described above, the hose rear end 1a is pressed into the locking hole 4 by elastic deformation of the hose rear end 1a. Is stopped.

In addition, the code | symbol 6 in a figure is a hollow piston part, 7 is a check valve,
8 is a valve base, 9 is a cylinder portion, 10 is an annular seal member, 11 is a spring, 12 is a valve, 13 is a stopper member, 14 is a handle portion, 15 is a cushion member, 16 is an annular cushion member, 17 is an O-ring, 18 indicates a base.

As described above, in the hose mounting structure for an air pump according to this embodiment, the rear end portion 1a of the hose into which the nipple member 2 is fitted is formed by the locking hole 4 formed in the pump housing (auxiliary pump portion) 3. Since the hose 1 is attached to the air pump body by being locked, there is no need to provide any sleeve as in the above-described conventional example, and therefore,
The hose is excellent in design, and does not require caulking, so that the hose mounting work becomes easy.

In addition, although the said Example applied this invention to the air pump with an auxiliary tank, this invention is not limited only to this kind of air pump with an auxiliary tank,
It goes without saying that the present invention can be applied to a normal air pump having no auxiliary tank.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an air pump with an auxiliary tank to which an air pump hose mounting structure according to one embodiment of the present invention is applied, and FIG. 2 is an enlarged partial sectional view showing the air pump hose mounting structure. . 1 ... Hose, 1a ... Hose rear end, 2 ... Nipple member, 3
... pump housing (auxiliary tank), 4 ... locking holes.

Claims (1)

(57) [Scope of request for utility model registration] 1. A mounting structure of a hose connected to a tire tube or the like to an air pump main body, the nipple member being fitted into a rear end of the hose, and a nipple member being formed in a pump housing and having the nipple member fitted therein. The hose mounting structure for an air pump, wherein the rear end of the hose comprises a locking hole press-fitted from inside the pump housing.