JPH06150482A - Cartridge magnetic tape transfer mechanism - Google Patents

Abstract

PURPOSE:To prevent fall down in an advancing direction by a pair of upper and lower rack gears and pinion gears in a cartridge magnetic tape transfer mechanism used for an information processor, etc. CONSTITUTION:A drive shaft 16 rotatably attached to the lower base 2 and the top base 11 of a cartridge transfer mechanism placed on a lower rail 1 and a pair of drive gear (L) 7 and drive gear (U) 17 are engaged with a lower rail 1 and a top gear rail 15 machining a pair of rack gears fixed to the upper and lower parts of an automatic cartridge magnetic tape processor. Thus, the cartridge transfer mechanism is moved along the upper and lower rails. Then, the fall down of the cartridge transfer mechanism in the advanceing direction is eliminated, and positioning precision is improved, and a mechanism size is miniaturized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge magnetic tape transporting mechanism for transporting a cartridge magnetic tape vertically, horizontally, forward and backward in an automatic cartridge magnetic tape processing apparatus used in an information processing apparatus or the like.

[0002]

2. Description of the Related Art FIG. 3 is a three-sided view showing an example of a cartridge magnetic tape transport mechanism in a conventional cartridge magnetic tape automatic processing apparatus, (A) is a front view, (B) is a side view, and (C) is a top view. Is.

As shown in FIG. 3, as a lateral conveying means, a cartridge conveying mechanism having a self-propelling function is mounted on a lower rail 1 which is fixed to a lower portion of the apparatus and which has a rack gear processed. It's working.

The cartridge transport mechanism is mounted so that a base roller 4 rotatably fixed to a roller shaft 3 fixed to a lower base 2 rides on a lower rail 1. The base roller 4 has a V-shaped cut on the contact surface with the lower rail 1 according to the rail shape of the lower rail 1, and the base roller 4 is rotatably attached to an eccentric shaft 5 fixed to the lower base 2 in an adjustable manner.
By adjusting the gap between the lower rail 1 and the lower rail 1 by means of the eccentric shaft 5, the positions of the upper, lower, front and rear sides with respect to the lower rail 1 are provided. At the same time, a drive gear (L) 7 rotatably attached to a drive shaft 6 fixed to the lower base 2 meshes with a rack gear provided on the lower rail 1, and is driven by a drive motor 8 fixed to the lower base 2 via a belt 9. The gear (L) 7 is driven to move along the lower rail 1.

Further, the collapse of the cartridge transport mechanism in the front-rear direction becomes larger toward the upper part due to the large size of the apparatus, and the positioning accuracy is improved when the cartridge is taken out from the cartridge storage shelf or mounted on the magnetic recording / reproducing apparatus. Therefore, a top rail 10 fixed horizontally and in parallel with the lower rail 1 is also provided on the upper part of the device, and is freely rotatably attached to a guide shaft 12 positioned on a top base 11 integrated with the lower base 2. The eccentric shaft (U) of the guide roller 13 rotatably attached to the eccentric shaft (U) 14 which is adjustably fixed to the fixed guide roller 13 and the top base 11.
The position is adjusted by adjusting with 14, and the top rail 10 is aligned without any gap so that the conveyance function does not fall in the front-rear direction.

Further, there is the same problem with respect to the collapse in the left-right direction as with the collapse in the front-rear direction, but with respect to the base shaft 4 fixed rotatably to the roller shaft 3 fixed to the lower base 2 and the lower base 2. The eccentric shaft 5, which is fixed so that it can be adjusted, has two sets of base rollers 4, which are rotatably attached to the eccentric shaft, mounted in the left-right direction to prevent collapse.

[0007]

In this conventional cartridge magnetic tape automatic processing apparatus, as a measure for preventing the conveying mechanism from falling in the left-right direction, it is rotatably fixed to the roller shaft 3 fixed to the lower base 2. Two sets of the base roller 4 and the base roller 4 rotatably attached to the eccentric shaft 5 fixed to the lower base 2 are mounted in the left-right direction.

In this conventional cartridge magnetic tape automatic processing apparatus, the accuracy of the amount of tilting of the cartridge transport mechanism in the left-right direction is affected by the pitch of the two sets of base rollers 4 mounted, and the height direction becomes higher. At this time, in order to reduce the amount of tilting in the left-right direction as much as possible, it is necessary to lengthen the pitch of the two base rollers 4 so that the dimension of the lower base 2 in the left-right direction is increased. There was a problem that it could not be measured.

[0009]

A cartridge magnetic tape transporting mechanism of the present invention has a function of transporting a cartridge magnetic tape up and down, left and right, front and back among a cartridge storage shelf, a cartridge loading / unloading port, and a magnetic recording / reproducing apparatus. In a cartridge magnetic tape transport mechanism of an automatic processing device, a pair of fixed rack gears horizontally provided at the upper and lower parts of the cartridge magnetic tape automatic processing device as a means for moving in the left-right direction and a pinion gear meshing with them are coaxially rotated. A freely attached shaft and a drive motor for rotating the shaft,
It is characterized in that it is self-propelled along the rack gear.

Further, a backlash securing means for securing a backlash between the pair of upper and lower rack gears and the pinion gear is provided, and the backlash securing means is separate from the pinion gear for a rail in which the upper and lower rack gears are cut. A guide roller for guiding the guide roller is provided, and the guide roller is rotatably mounted on an eccentric shaft that is adjustably fixed to a top base and a lower base that run along the rack gear.

[0011]

The cartridge magnetic tape transport mechanism of the present invention is
A top gear rail and a lower rail are provided in parallel and horizontally in the upper and lower parts of the cartridge magnetic tape processing device, and both rails are processed with rack gears, and the cartridge transport mechanism with a self-propelled function is fixed to the lower base to the lower rail. It is mounted so that the base roller, which is rotatably fixed to the roller shaft, rides on it. At the same time, among the pair of upper and lower gears fixed to the drive shaft that is freely rotatably fixed to the lower base and the top base, the lower gear and the rack gear on the top gear rail are engaged with each other, and the belt is driven by the drive motor fixed to the lower base. By driving and moving the drive shaft via the, it is possible to prevent the drive shaft from falling in the left-right direction.

A guide roller for guiding a pair of upper and lower rack gears is rotatably attached to an eccentric shaft which is separately adjustable from a gear and is self-propelled along a rack gear. By implementing
Backlash can be evenly secured over the entire range of the rack gear.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a trihedral view of a cartridge magnetic tape automatic processing apparatus showing an embodiment of a cartridge magnetic tape feeding mechanism of the present invention, (A) is a front view, (B) is a side view, and (C) is a top view. . FIG. 2 is an enlarged three-view drawing of the cartridge transport mechanism in the embodiment shown in FIG. 1, (A) is a front view,
(B) is a side view and (C) is a top view.

In FIGS. 1 and 2, as a conveying means in the left-right direction of the front view, a lower rail 1 having a rack gear fixed horizontally to a lower portion of a cartridge magnetic tape automatic processor, and a lower rail 1 parallel to the lower rail 1 are provided. A top gear rail 15 having a rack gear processed similarly to the lower rail 1 is provided horizontally above the apparatus, and a cartridge transport mechanism having a self-propelled function is mounted and operated.

The cartridge transport mechanism is mounted so that a base roller 4 rotatably fixed to a roller shaft 3 fixed to a lower base 2 rides on a lower rail 1. The base roller 4 has a V-shaped cut on the contact surface with the lower rail 1 according to the rail shape of the lower rail 1, and the base roller 4 is rotatably attached to an eccentric shaft 5 fixed to the lower base 2 in an adjustable manner.
By adjusting the gap between the lower rail 1 and the lower rail 1 by means of the eccentric shaft 5, the positions of the upper, lower, front and rear sides with respect to the lower rail 1 are provided.

At the same time, of a pair of upper and lower gears fixed to a drive shaft 16 rotatably fixed to the lower base 2 and the top base 11, a drive gear (L) 7 is a rack gear provided on the lower rail 1, and The drive gear (U) 17 meshes with a rack gear provided on the top gear rail 15, and a drive motor 8 fixed to the lower base 2 drives a drive shaft 16 via a belt 9.
Is driven, the lower rail 1 and the top gear rail 15
Move along.

In the present embodiment, since the cartridge transport mechanism itself is positioned in the left-right direction by the upper and lower rack gears, the problem of falling in the same direction does not occur. Therefore, the positioning by the base roller 4 with respect to the lower rail 1 is illustrated. As described above, it is possible to reduce the dimension of the lower base 2 in the left-right direction by reducing the size of the cartridge carrying mechanism in one place.

Further, the collapse of the cartridge carrying mechanism in the front-rear direction becomes larger toward the upper part due to the large size of the apparatus, and the cartridge is taken out of the cartridge storage shelf, and is positioned in a magnetic recording / reproducing apparatus when it is mounted. Since there is a problem in that the accuracy is poor and it is difficult to secure backlash between the top gear rail 15 and the drive gear (U) 17, it is necessary to form the top gear rail 15 as shown in FIG. Top base 1 inside the letter shape
By means of a guide roller 13 rotatably attached to a guide shaft 12 fixed to 1 and a guide roller 13 rotatably attached to an eccentric shaft (U) 14 adjustably fixed to the top base 11. When the clearance is adjusted and the cartridge transport mechanism moves along the rack gear of the top gear rail 15, the backlash can be evenly secured in the entire range of the rack gear, and the collapse in the front-rear direction can be suppressed.

[0019]

As described above, according to the present invention, a pair of top gear rails and lower rails are provided in the upper and lower parts of the cartridge magnetic tape processing device in parallel and horizontally, and both rails are processed as rack gears to be self-propelled. The cartridge transport mechanism having the function is mounted on the lower rail so that the base roller fixed rotatably on the roller shaft fixed to the lower base rides on it. At the same time, among the pair of upper and lower gears fixed to the drive shaft that is freely rotatably fixed to the lower base and the top base, the lower gear and the rack gear on the top gear rail are engaged with each other, and the belt is driven by the drive motor fixed to the lower base. By driving and moving the drive shaft via, it is possible to prevent falling in the left-right direction.

The clearance is adjusted by a guide roller rotatably attached to a guide shaft fixed to the top base with respect to the top gear rail, and when the cartridge transport mechanism moves along the rack gear, the entire rack gear is moved. By ensuring uniform backlash in the range and suppressing the collapse in the front-rear direction, the base roller can be positioned with respect to the lower rail in one place, and the left-right dimension of the lower base can be shortened. It has the effect of being measurable.

[Brief description of drawings]

FIG. 1 is a trihedral view of a cartridge magnetic tape automatic processing apparatus showing an embodiment of a cartridge magnetic tape transporting mechanism of the present invention, (A) is a front view, (B) is a side view, and (C) is a top view. is there.

2A and 2B are enlarged three-view diagrams of the cartridge transport mechanism in the embodiment shown in FIG. 1, in which FIG. 2A is a front view, FIG. 2B is a side view, and FIG.

FIG. 3 is a trihedral view showing an example of a cartridge magnetic tape transport mechanism in a conventional cartridge magnetic tape automatic processing device, (A) is a front view, (B) is a side view, and (C) is a top view.

[Explanation of symbols]

 1 Lower Rail 2 Lower Base 3 Roller Shaft 4 Base Roller 5 Eccentric Shaft 6 Drive Shaft 7 Drive Gear (L) 8 Drive Motor 9 Belt 10 Top Rail 11 Top Base 12 Guide Shaft 13 Guide Roller 14 Eccentric Shaft (U) 15 Top Gear Rail 16 Drive shaft 17 Drive gear (U)

Claims (3)

[Claims] 1. A cartridge magnetic tape transport mechanism of a cartridge magnetic tape automatic processing device having a function of transporting a cartridge magnetic tape up, down, left, right, front and back among a cartridge storage shelf, a cartridge loading / unloading port, and a magnetic recording / reproducing device, in the left / right direction. A pair of fixed rack gears horizontally provided on the upper and lower parts of the cartridge magnetic tape automatic processing device as a moving means of the shaft, and a shaft on which a pinion gear meshing with these is coaxially and rotatably attached.
A cartridge magnetic tape transport mechanism comprising: a drive motor for rotating the shaft, and being self-propelled along the rack gear. 2. The cartridge magnetic tape transport mechanism according to claim 1, further comprising backlash securing means for securing backlash between the pair of upper and lower rack gears and the pinion gear. 3. The backlash securing means includes a guide roller that guides a rail, which is formed by cutting the upper and lower rack gears, separately from the pinion gear, and the guide rollers are self-propelled along the rack gear. The cartridge magnetic tape transport mechanism according to claim 2, wherein the cartridge magnetic tape transport mechanism is rotatably mounted on an eccentric shaft that is adjustably fixed.