JPH05632Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a lubricating device for applying lubricating oil to the pin shaft of a tape feeding roller disposed inside a cassette of a cassette tape for audio and video recording. It is.

[Conventional technology]

Audio and video cassette tapes include
As shown in the plan view of the cassette tape with the upper case removed in FIG. 5, the pin shaft 9 of the feeding roller 16 is coated with lubricating oil for smooth feeding of the leader tape 17. 8 is the lower case.

FIG. 6 is an explanatory diagram showing a first example of a conventional method of applying silicone oil to a pin shaft.

As shown in FIG. 6, oil pots 18 are provided on the axis of a pin shaft 9 that is vertically provided on the lower case 8 of the cassette tape placed on a flat surface. The oil bottle 18 consists of a transparent acrylic tube 20 filled with a filler 19 made of sponge and lint and impregnated with silicone oil, and a flat tip attached to the lower end of the acrylic tube 20 and a cross-shaped tip. It consists of a rubber chuck 21 having a cut end.

The oil pot 18 is lowered, the center of the cross cut of the rubber chuck 21 is sandwiched between the pin shafts 9 and silicone oil is applied, and then raised again.

FIG. 7 is an explanatory diagram showing a second example of a conventional method of applying silicone oil to a pin shaft.

The oil pot 18 is provided at a predetermined position away from the axis of the pin shaft 9. Oil pot 18 is lower case 8 from there.
horizontally move to the axis of the pin shaft 9 as shown by the arrow, then descend from that position, apply silicone oil to the pin shaft 9 with the rubber chuck 21,
rise again. After this, the oil pot 18 is horizontally moved to the original position. A sponge roll 22 is provided during this movement, and this sponge roll 22 wipes off the rubber chuck 21 of the oil bottle 18 passing through and removes oil droplets.

[Problem that the invention attempts to solve]

However, the first conventional method has the following problems.

It is impossible to adjust the amount of oil applied to the pin shaft.

Oil droplets naturally fall from the tip of the oil pot all the time, and the fallen oil droplets adhere to leader tapes, etc., resulting in product defects.

The oil bottle's rubber chuck was cut into a cross, so the pin shaft was stuck in, causing the rubber chuck to grip the pin shaft, lifting the lower case as the oil bottle rose, leading to an accident.

Furthermore, the above-mentioned problems are not solved in the second conventional method.

[Means for solving problems]

This invention includes a container in which silicone oil is stored, and an oil supply needle provided at the tip of the container that vertically penetrates the bottom of the container and protrudes vertically into the container. a cylinder provided below the container for vertically moving the rod; a stand provided close to the container on which the cassette tape is placed; and a cylinder provided above the container. The needle of the rod protruding into the container is provided to be horizontally movable above the placing stand, and the needle is vertically movable toward the roller pin axis of the cassette tape on the placing stand. It is characterized in that it consists of an oil applicator having a rubber chuck for applying oil at the bottom thereof.

Next, the device of this invention will be explained with reference to the drawings.

FIG. 1 is a side view showing one embodiment of this invention;
FIG. 2 is a front view, and FIG. 3 is a diagram showing the principle of this invention.

As shown in FIGS. 1 to 3, this invention includes oil containers 1 and 1 containing silicone oil 2.
and vertically movable rods 4, 4 which vertically penetrate the bottom of the container 1 below the container 1 and have a needle 3 for supplying oil at the tip thereof;
A cylinder 5 provided below the rods 4, 4 for vertically moving the container 1, a cassette tape mounting stand 15 provided close to the container 1, and a rubber chuck 6 for applying silicone oil at the bottom. It consists of a coating machine 7.

As shown in FIG. 3, the through hole 1a of the rod 4 bored in the bottom of the container 1 is sealed by an oil seal 10 to prevent oil leakage.

As shown in FIG. 2, the containers 1, 1 and the rods 4, 4 are provided at a predetermined distance from each other. The distance between the needles 3, 3 is equal to the distance between the pin axes 9, 9 of the cassette tape placed on the mounting table 15.

The needle 3 is located within the oil 2 in the container 1 when the rod 4 is lowered, and protrudes from the level of the oil 2 when the rod 4 is raised.

The coating machine 7 has a support 1 hanging vertically from the base of the coating machine.
Rubber chucks 6, 6 provided at the lower ends of 1, 11
It consists of cassette holders 12, 12, which are similarly suspended from the base of the coating machine, and a moving mechanism (not shown).

As shown in FIGS. 1 and 3, the coating machine 7
It is horizontally movable between the upper part of the container 1 and the upper part of the stand 15 as shown by the arrow.

When the applicator 7 moves above the container 1, the rubber chuck 6 is located on the axis of the needle 3.

When the coating machine 7 moves above the stand 15,
The rubber chuck 6 is located on the axis of the pin shaft 9.

The applicator 7 on the container 1 is vertically movable toward the needle 3.

The coating machine 7 on the stand 15 is vertically movable toward the pin shaft 9.

As shown in FIG.
It consists of an inner cylinder 12b that can freely slide up and down within the inner cylinder 12b.

The lower end of the inner cylinder 12b protrudes from the lower end of the outer cylinder 12a, and its upper end abuts against the spring 13.

When the coating machine 7 on the stand 15 is lowered, the cassette holder 12 presses down the upper surface of the lower case 8 by the spring pressure of the spring 13.

Reference numeral 14 shown in FIG. 1 is a bracket that supports the mounting table 15.

As shown in FIG. 3, the rubber chuck 6 includes a holder 6a and a rubber 6a embedded in the holder 6a.
It consists of b. The bottom surface 6c of the rubber 6b has a flat shape.

When the tip 3a of the needle 3 protruding from the liquid level of the oil 2 in the container 1 comes into contact with the bottom surface 6c of the rubber chuck 6 at the tip of the applicator 7 that has descended from above the needle 3, it adheres to the tip 3a of the needle 3. The oil 2 attached to the bottom surface 6c.

The tip 9a of the pin shaft 9 and the bottom surface 6 of the rubber chuck 6 at the tip of the applicator 7 descended from above the pin shaft 9.
When it comes into contact with c, the oil 2 adhering to the bottom surface 6c
is applied to the pin shaft 9.

[Effect]

Next, the operation of this invention will be explained step by step.

The lower case 8 is placed at a predetermined position on the stand 15. At this time, the coating machine 7 is located above the container 1.

The needle 3 in the oil 2 rises and protrudes above the liquid level.

The applicator 7 descends and comes into contact with the needle 3,
Oil 2 adheres to the bottom surface 6c of the rubber chuck 6.

The applicator 7 is raised and at the same time the needles 3 are lowered and returned to their original positions.

The coating machine 7 moves to above the pin shaft 9, as shown in FIGS. 1 and 3.

The applicator 7 descends, the cassette presser 12 presses the lower case 8, and then the rubber chuck 6 and pin shaft 9 come into contact, removing the oil 2 adhering to the bottom surface 6c.
is applied to the pin shaft 9.

While holding down the lower case 8 with the cassette presser 12, the coating machine 7 rises. Cassette presser 12
rises after the rubber chuck 6 and pin shaft 9 are separated.

The applicator 7 moves to its original position above the container 1.

The amount of oil supplied can be varied by changing the diameter of the needle.

The needle can be easily replaced by either a plug-in type or a clamp type.

FIG. 4 is a sectional view showing another example of the rubber chuck. As shown in FIG. 4, the rubber chuck of this invention may have a shape that has a recess inside as the rubber embedded in the holder 11. 2
3 is rubber, and 23a is a recess.

When the needle 3 fits into the recess 23a, the oil 2 is supplied into the recess 23a.

When the pin shaft 9 is fitted into the recess 23a, the oil 2 within the recess 23a is applied to the pin shaft 9.

At this time, the pin shaft 9 may be caught in the recess 23a, but when the applicator 7 is raised, the cassette holder 12
holds down the lower case 8, so the lower case 8 will not be lifted up.

[Effect of idea]

As explained above, according to this invention, the following useful effects can be obtained.

A small and appropriate amount of silicone oil can be applied to the pin shaft.

Oil amount can be easily adjusted by changing the needle diameter.

Product defects due to falling oil droplets can be prevented.

The same amount of oil is always supplied evenly, and product defects due to insufficient oil amount do not occur.

The lower case is not lifted up by the action of the cassette holder.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of this invention;
Figure 2 is a front view, Figure 3 is a diagram showing the principle of this invention, Figure 4 is a sectional view showing another example of the rubber chuck of this invention, and Figure 5 is a recording cassette tape with the upper case removed. FIG. 6 is an explanatory diagram showing a first example of a conventional pin shaft lubricating method, and FIG. 7 is an explanatory diagram showing a second example. In the drawings, 1... oil container, 1a... through hole, 2... silicone oil, 3... needle,
3a... Tip, 4... Rod, 5... Cylinder,
6...Rubber chuck, 6a...Holder, 6b...
...Rubber, 6c...Bottom, 7...Oil applicator, 8
...Lower case, 9...Pin shaft, 9a...Top end, 1
0...Oil seal, 11...Support, 12...
Cassette holder, 12a...outer cylinder, 12b...inner cylinder, 13...spring, 14...bracket,
15... Placement stand, 16... Roller, 17... Leader tape, 18... Oil pot, 19... Filling, 20...
Acrylic tube, 21... rubber chuck, 22... sponge roll, 23... rubber, 23a... dent.

Claims (1)

[Scope of utility model registration request] a container containing silicone oil; a rod below the container that vertically penetrates the bottom of the container and has an oil supply needle provided at its tip that protrudes vertically into the container; A cylinder provided below the container for vertically moving the rod, a stand provided close to the container on which the cassette tape is placed, and a stand above the container. The needle of the rod protruding into the container is provided so as to be horizontally movable between the needle and the needle, and the needle of the rod protrudes into the container, and the lower part of the needle is movable vertically toward the roller pin axis of the cassette tape on the stand. An oil supply device for a roller pin shaft of a cassette tape, comprising an oil applicator having a rubber chuck for application.