JP2591649Y2 - dispenser - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape dispenser, and more particularly, to a dispenser that can easily slide a torque of a revolving gear.

[0002]

2. Description of the Related Art In a conventional tape dispenser, as shown in FIG. 4, an outer bearing 8 in which a center portion of a running gear 14 has a cylindrical bearing 7 and claws 6a and 6b surrounding the bearing 7 at regular intervals. And they are integrally molded. Further, the nail 6b is provided with a projection 6c on the outside. Then, a tape core 10 having a partially tooth-shaped hollow portion 9 into which the outer bearing 8 is fitted is fitted to the outer bearing 8, a tape is wound around the outer periphery of the tape core 10, and is housed in a dispenser. The projection 6c plays a role of a slip clutch when fitted to the tape core 10. The tooth shape of the hollow portion 9 of the tape core 10 is provided at about one third above the hollow portion 9 of the tape core 10. This is because when the tape core is pulled out together with the slip prevention, the protrusion 6c is formed in the tooth shape. It is also prevented from slipping off. Take a tape dispenser,
When a line is drawn while lightly pressing down, the force causes the tape core to rotate, and the protrusion 6c protruding outside the claw 6b and the hollow tooth profile of the tape core 10 provided about 1/3 above the hollow portion 9 are formed. It becomes a slip clutch, and the feeding gear and the tape core rotate while sliding, and the clutch moves. Then, the tape core and the gear obtain the required torque by the slip clutch, rotate the unwind gear with the slip force, and transmit the unwind gear to the winding.

However, in the structure of the bearing portion, the slip is caused only by the surface pressure, so that the mechanism is immediately destroyed during repeated use and slips with a slight load, which is not preferable. In addition, variations in molding conditions cause dimensional hunting of the projections 6c, claws 6d, and the hollow portion 9, and at the same time, have the adverse effect of leading to torque hunting. The rotation did not move smoothly.

[0004]

There is a cartridge type tape dispenser using a coil spring 12 as shown in FIGS. 5 and 6. This is auxiliary gear 1
5 and a core 13, a coil spring 12, and a spring retainer 11 which are separate from the core 5. The tape core 13 has a comb-shaped claw and a recess into which the coil spring 12 can be inserted. However, this has a problem that the spring retainer 11 is very small, so that the spring retainer 11 comes off immediately when the cartridge is replaced. The core 13 is structurally meshed with the gear of the feeding core 17 provided in the replacement cartridge 16, and the core 13 is functionally provided.
The effect is completely different from what is intended by the present application, for example, when the gear 7 is engaged with the gear 7, the urging force of the spring is involved.

Therefore, in the structure of the present invention having only a tape feeding gear and a winding gear in a cartridge, a structure that functions to easily take a torque has been desired.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a structure of a feed-out gear bearing that improves rotation failure between a tape feed-out gear and a take-up gear.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, the present invention provides a tape feeding gear and a take-up gear in a cartridge, and a tape on the tape during the movement of the tape from the feeding gear to the winding gear. In a tape dispenser comprising a head for transferring and bonding a formed coating film or a double-sided adhesive tape to a transfer surface, an outer bearing surrounding a cylindrical bearing and a lower part of the bearing at a fixed interval in the center of a feeding gear and fitting to the outer bearing. The fitting core to be fitted further has a spring fitted between the two, and the bearing is provided with a slit in the axial direction and a projection serving as a stopper for the fitting core in order to have elasticity in the horizontal direction. The fitting core has a hollow portion through which the bearing penetrates and is fitted to the outer bearing. The annular protrusion reaching the only side provided, the annular protrusion is to the subject matter to be engaged with projections of the bearing.

[0008] The spring used between the bearing and the outer bearing is not limited thereto, but may be a coil spring,
A disc spring or the like may be used.

[0009]

According to the present invention, since the spring is used in the bearing, the upper and lower loads of the tape core and the feeding gear can be controlled uniformly, and the torque can be controlled by the load of the coil spring.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments. FIG. 1 is a plan view of a dispensing gear portion of the dispenser of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is an exploded perspective view of the same parts as in FIG. In the figure, 1 is a feeding gear, 2 is a fitting core, 3
Is a coil spring, and 4 is a bearing. The outer periphery of the feeding gear 1 has an involute tooth profile as shown in FIG. Further, a cylindrical bearing 4 is provided at the center of the feeding gear 1, and the bearing 4 is provided with two vertical slits 4a and 4b in order to provide a bending for inserting a coil spring and a fitting core. . Further, a projection 4c is provided at the upper end of the bearing 4 for engaging an annular projection described below. Further, an outer bearing 5 surrounding the lower outer peripheral surface of the bearing 4 at a constant interval is provided, and the coil spring 3 can be inserted into a space between them.

On the other hand, the fitting core 2 has a hollow portion 2a through which the bearing 4 can be inserted and which can be fitted into the outer bearing 5, and an annular projecting piece 2b is provided inside the upper portion of the hollow portion 2a. ing. This serves to hold down the mounted coil spring 3 and, at the same time, is engaged with the projection 4c provided on the bearing 4, so that each member is firmly and integrally fitted.

The usage state of the tape dispenser using such a member is as follows. First, in the case of a tape, for example, a correction tape, place the head of the tape dispenser of the present invention on a portion to be corrected, pull it while pressing, the tape is paid out, the tape core is rotated by the feeding, and the rotational force is fed out. And the tape is wound up. When the tape dispenser is pulled downward while pressing the tape dispenser slightly downward at the end of the correction, a torque difference occurs between the feeding side and the winding side, and a slip occurs between the projection 4c and the annular protruding piece 2b, and the peripheral speed and The speed difference is absorbed by the slip ratio. Then, at that time, the coil spring is tightly wound by the compressive force, and the diameter is reduced.
Then, in a state where the members are integrally fitted in contact with the outer bearing, the fitting core and the feeding gear slip due to the tightening of the winding. And since the action of such a spring does not easily decrease even if the number of times of use is repeated, even when near the end of the tape, its rotation operation and control operation are not disturbed and remain constant until the end. Can perform smooth movement.

[0013]

As described above, when the dispenser of the present invention is used, the tape can be fed and stopped by the movement of the spring, so that the tape can be operated smoothly with respect to the applied force. . As a result, the rotation operation of the tape is improved.

[0014]

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of a feeding gear portion of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an exploded perspective view of FIG. 1;

FIG. 4 is an exploded perspective view of a conventional feeding gear unit.

FIG. 5 is an exploded perspective view of a conventional feeding assist gear.

FIG. 6 is an internal explanatory view of a conventional dispenser having a feeding auxiliary gear.

[0015]

[Explanation of symbols]

 Reference Signs List 1 feeding gear 2 fitting core, 2a hollow portion, 2b annular protruding piece 3 coil spring 4 bearing, 4a / 4b slit, 4c protrusion 5 outer bearing

Claims (1)

(57) [Scope of request for utility model registration] 1. A tape feeding gear and a take-up gear in the cartridge, in the course tape movement from out repeated chainring to the winding gear, or the coating film formed on the tape, transferred to a transfer surface of the double-sided adhesive tape In a tape dispenser including a head to be bonded, a cylindrical bearing and an outer bearing surrounding the lower part of the bearing at a fixed interval in the center of the feeding gear, a fitting core fitted to them, and a spring fitted between them. And the bearing
In order to provide elasticity in the horizontal direction,
And a projection serving as a stopper for the fitting core is provided.
In the mating core, the bearing penetrates and fits into the outer bearing portion
A hollow portion, and a bearing is formed on the upper portion of the hollow portion so as to face inward.
An annular projecting piece that reaches a bearing side surface at the time of fitting;
Dispenser characterized in that it is locked to a projection of a receiver.
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