JPS6222715Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grease nipple in which the direction of the nipple body can be freely changed.

When a grease gun is applied to a grease nipple to supply grease, it may be inconvenient to operate the grease gun depending on the direction of the grease nipple. For example, it would be very easy to work with a grease nipple on a vehicle's propeller shaft if the direction of the grease nipple could be changed depending on the position of the operator.

The grease nipple of the present invention was developed to solve this problem.By slightly pushing in the nipple body, the direction of the nipple can be freely changed, and by pulling out the nipple body again, the position can be changed. The nipple is fixed in place, and the direction of the nipple body can be changed with a very simple operation.

In addition, the nipple body is inexpensive because a commercially available nipple can be used, and the grease nipple can be significantly improved by adding simple parts, and it is also suitable for mass production.

The invention will be explained with reference to the drawings.

1 to 3 show preferred embodiments of the grease nipple of the present invention. This grease nipple is the grease supply port 2 of the machine body 1 where grease is to be supplied.
A bushing 3 that is fitted and fixed by screws or other suitable method, a nipple receiver 4 that can slide and rotate in the axial direction within this bushing, a nipple body 5 which may be a commercially available grease nipple, and this nipple body 5. A spring 6 is inserted between the bush 3 and the bush 3.

The bush 3 is fixed to the grease supply port 2 of the machine body 1 as shown in Figs. 4 and 5, but it may be screwed on as shown in the figure, or it may be press-fitted with a tightening margin. It's fine, and you can caulk it. A plurality of blind holes 7 for accommodating projections of a nipple receiver 4, which will be described later, are arranged on a circle concentric with a center hole 8 of the bushing 3. In the illustrated example, eight blind holes 7 are provided, but
The number of holes is not limited to blind holes, but may be at least eight.

The nipple receiver 4 is shown in FIGS. 6 and 7. This nipple receiver has an outer diameter that allows it to slide within the central bore 8 of the bushing 3 and forms a groove 9 for receiving a seal such as an O-ring 10. A flange 11 is provided at the lower end of the nipple receiver 4, and one projection 12 facing the blind hole 7 of the bush 3 is provided. As will be explained later, the blind hole 7 and the projection 12 form a rotation stopper that prevents relative rotation between the bush 3 and the nipple receiver 4. A female thread 14 into which the nipple body is screwed is formed in the upper part of the center hole 13 of the nipple receiver 4.

A spring 6 interposed between the nipple body 5 and the bush 3 presses the nipple receiver 4 onto which the nipple body is screwed toward the bush 3.

The nipple body 5 may be a specially manufactured one, or a commercially available one.

The function of this grease nipple will be explained. When it is desired to change the direction of the grease nipple, the grease nipple body 5 is pressed inward against the force of the spring 6 to bring it into the state shown in FIG. In this state, the projection 12 of the nipple receiver 4 has come out of the blind hole 7 of the bush 3, so the nipple receiver 4 can freely rotate within the bush 3.

In this state, for example, 90° or 45° nipple body 5
After rotating the nipple receiver 4 at the same time, the nipple receiver 4 is pulled out. The projection 12 of the nipple receiver 4 engages in another blind hole 7 in the bushing 3, and by the action of the spring 6 the nipple receiver is pressed against the bush, so that the nipple body is held in this position. Figure 3 shows the nipple body rotated 90 degrees from the position shown in Figure 1.

The blind holes 7 of the bush 3 can be spaced apart at arbitrary intervals depending on the necessary angle for rotating the nipple body, and the number of blind holes 7 can be any number as long as they are plural. In the illustrated embodiment, the protrusion 12 is connected to the nipple receiver 4.
Although the bushing 3 is provided with a blind hole, a protrusion may be provided on the bushing and a blind hole may be provided on the nipple receiver.

Note that it is advantageous for mass production if the bushing and nipple receiver are manufactured by cold forging.

Since the present invention has the above-described configuration, the direction of the nipple body can be changed with a simple operation. The grease nipple of the present invention has a simple structure, is inexpensive, and is suitable for mass production, making a great contribution to industry.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view showing the grease nipple of the present invention in a state in which it is pressed inward to rotate it;
The figure is a plan view of the grease nipple shown in Fig. 1, Fig. 3 is a partial sectional view of the grease nipple shown in Fig. 1 rotated by 90 degrees, and Figs. 4 and 5 are used for the grease nipple of the present invention. FIGS. 6 and 7 are a side view and a plan view of the bushing as seen from below, and FIGS. 6 and 7 are a plan view and a side view of a nipple receiver used in the grease nipple of the present invention. 1...Machine body, 2...Grease filler port, 3...
...Bushing, 4...Nipple receiver, 5...Nipple body, 6...Spring, 7...Blind hole, 8...Bushing center hole, 9...Groove, 10...O-ring, 11...
Flange, 12...Protrusion, 13...Nipple receiver center hole, 14...Female thread.

Claims (1)

[Claims for Utility Model Registration] 1. A bushing 3 fixed to the grease filler port 2 of the machine body 1, and a nipple receiver 4 that can slide in the axial direction and rotate around the axis within the bushing 3 and has a center hole 13. And this nipple receiver 4
A nipple body 5 that can be screwed into the center hole 13 of
and a rotation stopper 12, 7 which is interposed between the bush 3 and the nipple receiver 4 and prevents relative rotation between the bush 3 and the nipple receiver 4, and which is inserted between the nipple main body 5 and the bush 3. A grease nipple comprising a spring 6 that constantly presses the nipple receiver 4 against the bush 3. 2. The grease unit according to claim 1, wherein the rotation stopper is constituted by a plurality of holes 7 and at least one protrusion 12 provided in the bush 3 and the nipple receiver 4, respectively. pull.