JPH0242671A - Cartridge holder - Google Patents

Abstract

PURPOSE:To obtain a device to be small-sized, light-weight and inexpensive by executing opening and closing actions at the same time as the up and down movements of a hand with the cooperation work of a pin fixed to the hand and a cam groove provided to a plate cam. CONSTITUTION:A hand 1 to be horizontally moved in the inserting and removing directions of a cartridge 6 is turnably fitted in making a supporting shaft 2 into a center, a tension coil spring 5 is fitted to the hand 5, and the hand 1 is tensed in an arrow A direction. A pin 3 is fixed and projected on the back surface of the lower edge of the hand 1, and a plate cam 4 having a cam groove 4a, in which the pin 3 is moved in contact with the side surface, is fixed at the lower side of the hand 1. Components combined in such a way are provided symmetrically at right and left, and the cartridge 6 is simultaneously held from the right and left. Thus, a demerit to cause an expensiveness can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cartridge gripping device used for gripping a rectangular parallelepiped-shaped cartridge containing an information recording medium such as a magnetic tape or an optical disk.

[Conventional technology]

Conventional cartridge gripping devices used to grip rectangular parallelepiped-shaped cartridges that store information recording media such as magnetic tapes and optical disks are connected to drive sources such as rotary solenoids, motors, and air cylinders.
The opening/closing operation is configured to be performed by the power of the drive source.

[Problem to be solved by the invention]

As mentioned above, the conventional information recording medium cartridge gripping device has a driving source and performs horizontal movement together with this driving source, so the entire device is relatively large and heavy. Since a lead wire is required for the drive source, the wiring of this lead wire is complicated and expensive.

[Means to solve the problem]

The cartridge gripping device of the present invention has a gripping part that contacts and grips the cartridge on the side surface of the upper end, a pin protruding from the back surface of the lower end, and a support shaft between the gripping part and the pin. A hand that is movable up and down, and a hand that is attached near the spindle of the hand so that the hand is in the lowest position means that a clockwise rotational moment is applied to the hand about the spindle, and the hand When the hand is in the uppermost position, it has a tension coil spring that applies a counterclockwise moment of rotation about the support shaft to the hand, and a cam groove that contacts the pin on the side surface, and is fixedly attached. The left side surface of the cam groove has a vertical portion sandwiching a vertical portion and slope portions above and below the vertical portion.

〔Example〕

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

FIG. 1 is a partially cross-sectional side view showing one embodiment of the present invention, showing only the left member of a pair of left and right members. 2A, 2B, and 2C are front views showing different operating states of the embodiment of FIG. 1.6 In FIG. is mounted rotatably around a support shaft 2. A tension coil spring 5 is attached to the hand 1, and pulls the hand 1 in the direction of arrow A in FIG. 2(a).

A pin 3 is fixed and protrudes from the back surface of the lower end of the hand. A plate cam 4 having a cam groove (groove>4a) in which the pin 3 moves while contacting its side surface is fixed below the hand 1.

In this embodiment, such a combination of structural members is provided symmetrically in the left and right directions, and the cartridge is gripped from the left and right sides at the same time.

2(a), (b), and (c) are front views showing different operating states of the embodiment of FIG. FIG. 4 is a drawing in which the cam 4 is placed in a position separated from the hand 1.

The operation of the embodiment shown in FIG. 1 will be explained below with reference to FIG.

In a normal state, the pin 3 of the hand 1 as shown in FIG. 2(b) is in contact with the upper vertical portion 4a-1 of the side surface of the cam groove 4a of the plate cam 4 (reference numeral 3a). Therefore, even if the tension coil spring 5 pulls the hand 1 in the direction of arrow B, the hand 1 maintains the angle of θ° and remains stable. When the support shaft 2 is moved downward from the state shown in FIG. 2(b), the pin 3 moves along the lower slope 4a-2 of the cam groove 4a.
As shown in FIG. 2(a), the grip part 1 at the tip of the hand 1
Grip the cartridge 6 with a.

When the support shaft 2 is further moved downward, the hand 1 moves downward while gripping the cartridge 6, so that the cartridge 6 is pulled out.

When inserting the cartridge 6, the support shaft 2 moves upward, and the insertion is completed in the state shown in FIG. 2(a). When the support shaft 2 further moves upward, the pin 3 moves to the slope 4a of the cam groove 4a.
-2, and the grip on the cartridge 6 is released in the state shown in FIG. 2(b). When the support shaft 2 moves further upward, the cam groove 4 becomes in the state shown in FIG. 2(c).
The tension coil spring 5 reaches the upper end surface 4a-4 through the slope 4a-3 above a, and at this time the tension coil spring 5 is located below the center of the support shaft 2. Therefore, hand 1 is arrow C.
The pin 3 contacts the right inclined surface of the cam groove 4a, and the hand 1 becomes stable while maintaining the angle (θ+α)°. If the support shaft 2 is further moved upward in this state, the hand 1 can be moved without contacting the cartridge 6.

〔Effect of the invention〕

As explained above, the cartridge gripping mechanism of the present invention can open and close at the same time as the vertical movement of the hand through the cooperation of the pin fixed to the hand and the cam groove provided in the plate cam. This has the advantage that a special drive source such as a solenoid is not required, and therefore a small, lightweight, and inexpensive cartridge gripping device can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of an embodiment of the present invention, and FIGS. 2(a) and (b) and (c) are front views showing different operating states of the embodiment of FIG. It is a diagram. 1...Hand, 2...Spindle, 3...Pin, 4...
・Plate cam, 5...Tension coil spring, 6...Cartridge, 7/8...Sprinkler/V-ri.

Claims (1)

[Claims] a hand that has a gripping part that contacts and grips the cartridge on a side surface of an upper end part, a pin protruding from the back surface of the lower end part, a support shaft between the gripping part and the pin, and is movable up and down; When the hand is attached near the spindle of the hand and is in the lowest position, a clockwise rotational moment is applied to the hand about the spindle, and the hand is in the top position. includes a tension coil spring that applies a counterclockwise rotational moment to the hand about the support shaft, and a plate cam that is fixedly attached and has a cam groove that contacts the pin on the side surface, and the plate cam is fixedly attached. 1. A cartridge gripping device characterized in that a left side surface of a cam groove has a vertical portion and sloped portions above and below the vertical portion.