JPH0737421Y2 - Fixing mechanism for accessories of electronic devices - Google Patents

Description

Detailed Description of the Invention [Outline] In an electronic device, particularly an electronic exchange, in order to perform a line tester, etc., an auxiliary device such as a test installed at a fixed position on the front surface of the cabinet of the exchange is always installed. Concerning the fixing mechanism that holds it safely and securely, the shelf is stored in the cabinet of the electronic exchange, etc., with the purpose of providing a secure and reliable fixing mechanism for the tester that is easy to attach and detach and does not come off even in an unexpected situation. A pair of left and right grips protruding from the front surface of the hook, and a hooking mechanism provided on the main body of an accessory device such as a tester to hold it detachably. Vertical axes are provided in the left and right areas of the attached device,
Arms are attached to the respective vertical shafts so that the free ends of the arms project toward the front of the accessory device so that they can be engaged with the handles of the Schulph, and the arms are pivoted in opposite directions with respect to the vertical shafts. A single horizontal shaft is provided for feeding, a handle for carrying the accessory is fixed to the horizontal shaft, and the horizontal shaft is rotated from a horizontal position to a vertical position so that the horizontal shaft is rotated by a predetermined angle. , The arms are turned away from each other to release the engagement with the handle of the shelf, and conversely, by laying the handle from the vertical position to the horizontal position, the horizontal axis is rotated by a predetermined angle in the opposite direction to the front. The respective arms are rotated so as to approach each other to engage with the handles of the shelves.

[Industrial application field]

The present invention is a fixed device that securely and securely holds an auxiliary device such as a test installed in a fixed position on the front surface of the cabinet of the exchange device at all times in order to perform a line test in an electronic device, particularly an electronic exchange device. Regarding the mechanism.

[Conventional technology]

The electronic exchange is configured by arranging a plurality of cabinets in which shelves accommodating a large number of electronic circuit packages are stacked and stored in multiple stages in parallel. In order to test this exchange machine in a timely manner, a test machine is installed at a predetermined position on the front surface of the cabinet. Since this tester needs to be removed from this fixed position as needed, conventionally, as shown in FIGS. 5 (a) and 5 (b), the left and right sides protruding from the front of each shelf 1 are fixed. The hooks 4 provided on the case 3 of the tester are engaged with the protrusions 2a on the upper ends of the pair of handles 2 for inserting and removing the shelf to hang them, and the lower front part of the case 3 is brought into contact with the front face of the handle 2 to stabilize the position. Have been converted.

[Problems to be solved by the device]

However, with this mounting method, the stability of the mounting depends exclusively on the weight of the tester itself, so if the vertical movement due to an earthquake increases beyond a specified range, the protrusion 2a and the hook 2 There is a risk of disengagement with 4 and dropping the tester.

It is conceivable to fix the tester to the handle by screwing in order to eliminate such a drawback, but this is not preferable because a tool is required for attachment and detachment, which complicates the work.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and to provide a safe and reliable fixing mechanism for a testing machine that is easily attached and detached and does not come off even in an unexpected situation.

[Means for Solving the Problems]

For this purpose, a hook provided on the main body of an accessory device separate from the electronic device is engaged with a pair of left and right handles provided on the front surface of a shelf stored in a cabinet of the electronic device. It is a fixed device for attaching and detachably holding it, and a vertical axis is provided in each of the left and right regions of the accessory, and an arm is attached to each of the vertical axes so that its free end projects in front of the accessory. Is provided with one horizontal shaft for rotating the arms in opposite directions with respect to the vertical shaft, and carries the accessory device on the horizontal shaft. A handle for fixing, and by raising the handle from a horizontal position to a vertical position, the horizontal axis is rotated by a predetermined angle,
The arms are turned away from each other to release the engagement with the handle of the shelf, and conversely, the handle is laid down from the vertical position to the horizontal position so that the horizontal axis has a predetermined angle in the opposite direction to the front. This is achieved by a fixing mechanism of an accessory device of an electronic device, characterized in that the respective arms are rotated so as to rotate in a direction in which they approach each other to engage with a handle of the shelf.

Hereinafter, the present invention will be described in more detail with reference to the preferred embodiments shown in the drawings.

〔Example〕

FIG. 1 is a perspective view showing the outer appearance of a fixing mechanism according to the first embodiment of the present invention, and FIG. 2 is a perspective view showing the inside thereof.

The testing machine 10 whose schematic form is shown by a chain line has a hook 2 provided at both left and right ends of its upper portion, and a projection 2a at an upper end of a pair of left and right vertically extending handles 2 which are fixed to the front of the shelf 1 by being fixed. It is held in a hanging state.

A vertical shaft 12 is rotatably attached via bearings 11 at appropriate places in the left and right regions of the tester 10. An arm 13 is loosely engaged with the vertical shaft 12 through a through hole formed in the base thereof, and a free end of the arm 13 projects toward the shelf 1 and extends. Further, each arm 13 is constantly urged by a spring 14 in a direction in which its free ends approach each other.
The free end of the arm bends inward to form the locking portion 13a,
As will be described later, when the tester 10 is attached at a predetermined position,
As shown by the solid line in the figure, the grip portion 2b of the handle 2 is contacted from the outer side surface.

The vertical shaft 12 is rotatable about the bearing 11, but the arm 13
The movement of the arm 13 is restricted by an appropriate stopper mechanism (not shown) so as not to rotate inward beyond the position where it should come into contact with the outer side surface of the handle 2, and the arm 13 also moves beyond this restricted position to the vertical axis 12. Pins 18 and 19 are provided on each of the vertical shaft 12 and the arm 13 so as not to rotate relative to each other.

A bevel gear 15a is fixed to the tip of the vertical shaft 12.

One horizontal shaft 16 is rotatably installed between the left and right vertical shafts 12, 12, and a pair of bevel gears 15b fixed to both ends of the horizontal shaft 16 mesh with the bevel gear 15a fixed to the vertical shaft 12. There is. Further, a handle 17 for carrying the tester 10 is fixed to the center of the horizontal shaft 16.

With such a configuration, the horizontal shaft 16 is rotated around the axis at a predetermined angle by the operation of lying the handle 17 or raising it. Then, by the meshing of the bevel gears 15a and 15b, the left and right vertical shafts 12 rotate in mutually opposite directions, and the ends of the arms 13 can be rotated about their axes so that the distances between the tips of the arms 13 increase or decrease. it can.

The present invention operates based on such a principle, and its operation will be described below. When mounting the tester 10 on the front of the shelf 1, the handle 17 of the tester is manually pulled up as shown by the solid line. Then, the horizontal shaft 16 rotates in the arrow P direction, and the vertical shaft 12 rotates in the arrow Q direction by a predetermined angle.

Due to the rotation of the vertical shaft 12, the free ends of the arms 13 move left and right in the directions away from each other through the contact of the pins 18 and 19.
The distance between the locking portions 13a is larger than the distance between the left and right handles 2 of the shelf 1. Hook 4 of tester 10 in this state
Is hooked on the protrusion 2a of the handle 2 to suspend the tester 10.

Then, when the hand is released from the handle 17, the horizontal axis 16 is moved by the arrow P by the weight of the handle 17 and the urging force of the spring 14.
The handle 17 returns to the horizontal position indicated by the dotted line. Then, the vertical axis 12 rotates in the direction opposite to the direction of the arrow Q following the path opposite to that described above, and the arm 13 is moved by the biasing force of the spring 14 in the direction in which both the locking portions 13a approach each other, and Firmly grip the second grip portion 2b. As a result, the testing machine 10 is maintained stable against lateral movement.

When the tester 10 is removed, when the handle 17 is manually pulled up, the horizontal shaft 16 rotates as described above, and as a result, the arm 13 is opened and the locking portion 13a is held by the grip 2b of the handle 2 of the shelf 1. Get away from. Therefore, handle as it is
Use 17 to pull up the testing machine 10 and project the hook 4
Remove from 2a.

As shown in FIG. 3, the engaging portion 13a of the arm 13 is
If the taper 20 is provided, when the tester 10 is attached to the handle 2, as long as the taper 20 comes into contact with the front surface of the handle 2, the arm 13 is urged by the spring 14 by the action of the component force of the pushing force. It will open naturally to the left and right against the and it will be easier to install.

FIG. 4 shows a second embodiment of the present invention.

In this example, instead of the motion transmitting mechanism by the bevel gears 15a and 15b of the first embodiment, surface cams 21 are fixed to both ends of the horizontal shaft 16 and are engaged with an operating portion 22 provided on the arm 13. The arm 13 is moved. Since other mechanisms are substantially the same as the former, detailed description will be omitted.

[Effect of device]

According to the present invention, the handle for transporting the tester is fixed to the horizontal axis, and the horizontal axis is rotated by the action of causing it to lie down, thereby moving the arms installed on the left and right to grasp the shelf handle. Since it can be turned on and off, the tester can be securely attached and removed by natural operation. As a result, even if a large earthquake or the like occurs, the risk of the installation being removed and the testing machine falling can be avoided.

[Brief description of drawings]

FIG. 1 is a perspective view showing the outer appearance of a first embodiment of the present invention, FIG. 2 is a perspective view showing the inside of the first embodiment, and FIG. 3 is a preferable shape of a locking portion of an arm used for the same. 4 is a perspective view of a second embodiment of the present invention, and FIGS. 5 (a) and 5 (b) are schematic diagrams showing a conventional tester mounting method. 1 ... Shelf, 2 ... Handle, 2a ... Protrusion, 2b ... Grip, 4 ... Hook, 10 ... Testing machine, 11 ... Bearing, 12 ...
Vertical axis, 13 ... arm, 14 ... spring, 15a, 15b ...
… Bevel gear, 16 …… horizontal axis, 17 …… handle, 18,19 ……
pin.

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right handles (2) projecting from the front of a shelf (1) housed in a cabinet of an electronic device, and an accessory device (10) separate from the electronic device. Is a fixing mechanism for engaging the hook (4) provided on the main body of the device and holding the hook (4) in a removable manner, wherein vertical axes (12) are provided in the left and right regions of the accessory device (10), respectively. The arm (13) is attached to the vertical shaft (12), and the free end of the arm (13) is projected toward the front of the accessory (10) so that it can be engaged with the handle (2) of the shelf (1). A horizontal shaft (16) for rotating the vertical shaft (12) in opposite directions with respect to each other, and for carrying the accessory device (10) on the horizontal shaft (16). By fixing the handle (17) of the and then raising the handle (17) from the horizontal position to the vertical position. The horizontal shaft (16) is rotated by a predetermined angle, and the arms (13) are rotated in directions away from each other to release the engagement with the handle (2) of the shelf (1), and conversely with the handle. By laying (17) from a vertical position to a horizontal position, the horizontal axis (16) is rotated by a predetermined angle in the opposite direction to the front direction, and each arm (13) is rotated.
A mechanism for fixing an accessory of an electronic device, characterized in that the two are rotated in a direction in which they approach each other to engage with a handle (2) of the shelf (1).