JPH02173436A - Universal belt - Google Patents

Abstract

PURPOSE:To enable common use to be attained even with a difference in a pulley tooth profile and pitch, only when the peripheral diameter of a belt is studied, by pressing to the pulley tooth profile a flat belt-shaped tooth profile corresponding part, having no fixed tooth profile, forming the tooth profile. CONSTITUTION:A universal belt 23 is formed by a rubber base 11 determining a belt basic length L, core wire 12 of fiber or the like increasing strength for preventing elongation by tension and a tooth profile corresponding part 13 holding a flat condition before engagement with a drive pulley 22. And the belt 23 transcribes a belt by a tension roller 21 guiding the belt in its running while loading a pressure for transcribing a pulley tooth profile to the belt. While rotary power of a motor is transmitted to the belt by the pulley 22 performing necessary pitch running, when it drives the belt running in a direction of rotation A, the belt 23 forms a tooth profile between the pulley 22 and the roller 21, causing a setting amount to be moved, and the belt, when it is detached from the pulley 22, is gradually restored.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a universal belt, and particularly to a universal belt used as a timing belt for power transmission used in precision equipment such as printing devices.

[Conventional technology]

Conventional power transmission timing belts used in precision equipment such as printing devices use a combination of pulleys and timing belts that match the required feed pitch.
There are also differences in the tooth profile between belt manufacturers, and it is necessary to select a belt according to the usage conditions, and the pulley and timing belt basically have to be used as a set.

[Problem to be solved by the invention]

In other words, with the conventional timing belt mentioned above, it is necessary to select a belt that matches the pulley tooth profile, and the feed pitch and amount of backlash are restricted, making it difficult to easily change the belt. The drawback was that it was an absolute requirement to change not only the belt but also the pulleys.

[Means to solve the problem]

The universal belt of the present invention is a belt that can form a tooth profile on the tooth profile corresponding part by pressing the tooth profile of a pulley with the tooth profile corresponding part of a flat belt without a fixed tooth profile. If the total belt length (circumferential diameter) is designed and considered, the belt can be configured so that it can be used in common even if the tooth profile and pitch of the pulleys are different.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
FIG. 3 is a perspective view showing an example of use of the embodiment shown in the figures.

The universal belt shown in Fig. 1 consists of a rubber base 11 that determines the basic length of the belt, a core wire 12 made of glass fiber or the like that is used to increase strength in order to prevent elongation due to tension applied to the belt, and a drive pulley and a core wire 12 that is connected to the drive pulley. It is configured to include a tooth profile corresponding portion 13 that maintains a flat state until they are aligned.

As shown in FIG. 2, this universal belt 23 is
A drive pulley 22 guides the running of the belt and applies pressure to transfer the pulley tooth profile onto the belt.The belt is transferred by a tension roller 21, and a drive pulley 22 transmits the rotational power of the motor to the belt to make it run at the required pitch. When the belt travels in the rotational direction A, a tooth profile is formed on the universal belt 23 between the drive pulley 22 and the tension roller 21, which causes the belt to move a set amount, and when it leaves the drive pulley 22, it gradually returns to its original position.

〔Effect of the invention〕

In the universal belt of the present invention, the tooth profile corresponding portion forms a tooth profile in accordance with the tooth profile and pitch of the other drive pulley, etc., so even if the type of pulley is different, the belt length (circumference)
By managing the combination of belts and pulleys, you can use them all in common.

This has the effect of solving problems such as compatibility.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
FIG. 3 is a perspective view showing an example of use of the embodiment shown in the figures. 11...Rubber base, 12...Core wire,
13...Tooth profile corresponding portion, 21...Tension roller, 22...Drive pulley, 23...
...Universal belt, 24...Tooth profile, A...Rotation direction. Agent Patent Attorney Oto Uchihara

Claims (1)

[Claims] The rubber base includes an endless rubber base, a core wire bonded to the inner periphery of the rubber base, and a tooth shape corresponding portion that is bonded to the inner periphery of the core wire and is pressed against a drive pulley by a tension roller to form a tooth shape. A universal belt featuring: