JPH0727657Y2 - Slide lock mechanism of rack mount device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a slide lock mechanism of a rack mount device that locks a rack mount device that is slidably (drawable) on a rack at a predetermined position of the rack. .

[Outline of the Invention] The present invention locks a rack mount device slidably mounted on a rack in a state where the rack mount device is completely accommodated in the rack, or a state where the rack mount device is pulled out from the rack by a certain amount. The present invention relates to a slide lock mechanism of a rack mount device, in particular, a stopper release lever is provided on the front side of a rack mount device housing slidably mounted on a rack, and when the stopper release lever is operated, a stopper is provided via a connecting means. As the lever moves, the stopper part provided on the stopper lever comes out of the stopper fitting part provided on the rack, and the rack mount device can be slid with respect to the rack. When moved, the device where the stopper is installed on the rack By making it possible to remove the rack mount device from the rack when it comes to a position where it does not engage with the stopper engagement projection for stopping, the rack mount device can be slid by stepwise operation of the stopper release lever. Alternatively, the rack mount device can be removed from the rack.

Further, according to the present invention, by providing a lock lever for restricting the movement amount of the stopper lever so that the stopper portion and the stopper engaging protrusion are not disengaged from each other, the lock lever can be operated to operate the stopper lever. Unless the restriction on the amount of movement is released, the stopper part and the stopper engagement projections will not be disengaged so that the rack mount device will not accidentally fall out of the rack when the rack mount device is pulled out to the front side. It is the one.

[Prior Art] A rack mount device literally means a device that is slidably mounted on a rack and that is used by pulling it out of the rack when it is in use and pushing it into the rack when not in use. Many of the devices such as the audio mixing amplifier for relay used in this are rack-mounted systems.

[Problems to be solved by the invention] By the way, most of the conventional rack-mount type devices are simply slidably (drawable) mounted on a rack, and therefore the following problems occur. There was a point.

(1) The rack mount device cannot be locked (fixed) in a state where it is pulled out from the rack by a necessary amount (required length) so that the rack mount device can be used conveniently. (If the rack mount device cannot be locked in use, the rack mount device may move back and forth during use, which may cause erroneous operation.) (2) When pulling the rack mount device into use There is a risk that the momentum will be exceeded and the rack mount device will fall out of the rack, damaging the rack mount device.

The present invention solves the above-mentioned conventional problems, and can fix the rack mount device at a predetermined position of the rack, and further reliably prevent the rack mount device from falling out of the rack when the rack mount device is pulled out. Is.

[Means for Solving the Problem] A slide lock mechanism of a rack mount device is provided with a stopper release lever provided on the front side of a rack mount device chassis slidably supported in a rack, and a side portion of the rack. A stopper fitting part provided on the rear side,
A stopper fitting portion provided on the front side of the side of the rack is fitted to the stopper fitting portion in a state where the rack mount device is housed in the rack, and the rack mount device is installed in a predetermined amount from the rack. Has a stopper portion that comes into contact with the stopper engaging projection in a state of being pulled out only, and the stopper portion is separated from the first position where the stopper portion fits into the stopper fitting portion and the stopper fitting portion. A stopper lever movably attached to the rack mount device so as to be selectively movable to a second position where it abuts the fitting protrusion and a third position where it disengages from the stopper engaging protrusion, and the stopper release lever. And connecting means for interlocking the stopper lever with the above.

Further, in the slide lock mechanism, the stopper portion of the stopper lever is provided at the first position and the second position.
The rack mount device is provided with a lock lever for restricting the movable range of the stopper release lever when moving only to the position (so as not to move to the third position).

[Operation] When the stopper release lever is not operated, the stopper portion is in the first position and fits into the stopper fitting portion to lock the rack mount device in the state housed in the rack. When the stopper release lever is operated to move the stopper portion to the second position, the stopper portion comes out of the stopper fitting portion and the rack mount device is unlocked, but the stopper lever is operated by the lock lever. The amount of movement is restricted, and the stopper is in a position where it can engage with the stopper engagement protrusion.

Therefore, although the rack mount device is unlocked and becomes slidable, the stopper portion engages with the stopper engagement protrusion, so that the rack mount device does not drop from the rack.

And when removing the rack mount device from the rack, further operate the stopper release lever under the condition that the stopper lever is unlocked by the lock lever,
When the stopper portion is moved to the third position, the stopper portion moves to the third position where it does not engage with the stopper engaging protrusion, and the rack mount device can be removed.

[Embodiment] Next, a slide lock mechanism of a rack mount device of the present invention will be described with reference to the drawings.

In FIG. 1, 1 is a rack, and 2 is a rack mount device slidably attached to the rack 1, and a stopper release lever 4 is provided on the front surface of a housing 3 of the rack mount device 2.

When the stopper release lever 4 is not operated, as shown by the solid line in FIG. 2, the stopper portion 7 provided on one end side of the stopper lever 6 is at the first position and is located at the rear side of the rack 1. The rack mount device 2 is fitted to the stopper fitting portion 8 provided on the side of the rack 1
It is locked when stored inside.

When the stopper release lever 4 is operated to move the stopper portion 7 provided on one end side of the stopper lever 6 to the second position shown by the one-dot chain line in FIG. 2 via the connecting means 5. The stopper portion 7 is pulled out from the stopper fitting portion 8 to make the rack mount device 2 slidable with respect to the rack 1.

A stopper engaging protrusion 9 is provided on the front side of the side portion of the rack 1.
Is provided.

The stopper engaging projection 9 is at a position where it comes into contact with the stopper portion 7 at the second position when the rack mount device 2 is pulled out from the rack 1 by a predetermined amount, as shown by a two-dot chain line in FIG. The rack mount device 2 cannot be pulled out from the rack 1 any more.

When the stopper release lever 4 is further operated to move the stopper portion 7 to a third position shown by a three-dot chain line in FIG. 2, the stopper portion 7 is disengaged from the stopper engaging protrusion 9. The rack mount device 2 can be pulled out from the rack 1.

A lock lever 10 is provided in the vicinity of the stopper release lever 4 for restricting the amount of movement of the stopper lever 6 and preventing the stopper portion 7 from moving to a third position where it is disengaged from the stopper engaging projection 9. There is.

As shown in FIG. 1, the rack 1 is formed in a rectangular parallelepiped shape having a predetermined width, depth, and height with four H frames 11 ... The slide rails 13, 13 are attached by a pair of left and right rail support plates 12, 12. And these slide rails 13,1
Rack mount device 2 is attached to 3.

The width of the housing 3 of the rack mount device 2 has a structure in which an upper half portion 3a and a lower half portion 3b have a difference. The upper half 3a is formed to have a width slightly smaller than the width of the rack 1, and the lower half 3b is formed to have a width slightly smaller than that of the upper half 3a. Rail brackets 14 are attached to the left and right sides of the lower half portion 3b so as not to project from both side surfaces of the upper half portion 3a. By tying the rail brackets 14 to the slide rails 13, the rack mount device 2 can be installed. It is slidably mounted on the rack 1.

Further, as shown in FIG. 3, the stopper release lever 4
Is composed of a release stay 15 and a pipe 16 for a hand grip supported by the release stay 15.

As shown in FIGS. 5 to 7, the upper release stay 15 includes a pair of left and right rotating arms 17 and 1 for supporting both ends of a pipe 16 for handholding.
8, a connecting rod 19 connecting one end sides of the pair of rotating arms 17 and 18, and one end side of one rotating arm 17 of the pair of left and right rotating arms 17 and 18 at a substantially right angle. The link rod connecting arm (20) is formed in a bent state.

The release stay 15 is configured such that one end side of the rotating arms 17 and 18 is protruded to the outside of the housing 3 from elongated holes 22 and 22 for leading out arms provided in the front plate 21 of the housing 3. The other end side of 17, 18 is pivotally supported by a release stay holder 23 provided on the inner surface side of the front plate 21 (inside the housing 3) so as to be rotatable by a shaft 24, and is attached to the release shaft 24. Lever return spring 25
In Fig. 3, clockwise power is applied, and the long holes 22,22
It is pushed down to the lower edge of the.

As shown in FIG. 2, the connecting means 5 includes a first link rod 26, one end of which is connected to the tip of the link rod connecting arm 20 of the release stay 15, and the other end of the first link rod 26. A pair of left and right second and third link rods 27, 28, one end of which is joined to
And a pair of left and right fourth and fifth link rods 29 and 30 connected to the other end sides of the second and third link rods 27 and 28 are formed in a flat T-shape.

The first link rod 26 is formed in a linear shape, one end side of which is pivotally attached to the tip of the link rod connecting arm 20 by a first shaft 31 and the first link rod 26 is also rotatable. 26
A second shaft 32 for pivotally attaching the second and third link rods 27, 28 is attached to the other end side of the.

Further, as shown in FIGS. 8 to 10, the second and third link rods 27, 2
Reference numeral 8 denotes a lower horizontal piece 33 and a vertical piece formed by bending one end of the lower horizontal piece 33 upward and at a substantially right angle.
34 and an upper horizontal piece 35 which is connected to the tip end of the vertical piece 34 so as to be substantially perpendicular to the lower horizontal piece 33, and is formed into a substantially right-angled isosceles plane.

The second and third link rods 27, 28 are rotatably supported by the housing 3 by a third shaft 36 at their central portions and are provided at the end portions of the lower horizontal piece 33. A second shaft 32 provided at one end portion of the first link rod 27 is fitted in the long hole so that the second link 32 is rotatably coupled to the first link rod 27.

The fourth and fifth link rods 29, 30 are rotatably attached to the other ends of the second and third link rods 27, 28 by fourth and fifth shafts 37, 38, respectively. Together with these 4th and 5th link rods 29,30
A pair of left and right stopper levers 6, 6 are rotatably attached to the other end of the shafts by sixth and seventh shafts 39, 40, respectively.

The pair of left and right stopper levers 6, 6 are formed in a J shape, and one side portion on one end side in the length direction is the fourth, fifth shaft 39, 40 by the sixth and seventh shafts 39, 40 as described above. The link rods 29, 30 are rotatably pivotally attached to each other, and the other ends thereof are pivotally attached to the housing 3 by eighth and ninth shafts 41, 42, respectively.

One side of the stopper levers 6, 6 on one end side (the sixth and seventh shafts 3
9 and 40), a stopper portion 7 is provided so as to project toward the side surface of the rack 3, and the stopper portion 7 is an index spring 43, which applies a turning force to the stopper levers 6, 6.
By the spring force of 43, it is positioned at a first position where it is fitted into a circular groove-shaped stopper fitting portion 8 provided on the side rear side of the rack 3.

When the stopper release lever 4 is rotated counterclockwise in FIG. 3 against the spring force of the release lever return spring 25, the stopper lever is connected by the connecting means 5 including the first to fifth link rods 26 to 30. 6 rotates against the spring force of the index spring 43, and the stopper portion 7 moves to the second position where it comes out of the stopper fitting portion 8 to make the rack mount device 2 slidable. However,
Even if the stopper release lever 4 is to be further rotated, the link rod coupling arm 20 contacts the protrusion 44 of the lock lever 10, and the stopper release lever 4 does not rotate any more. Therefore, the stopper portion 7 is used to prevent the device from coming off. Since it is in the second position where it engages with the stopper engaging projection 9 of the rack mount device 2, the rack mount device 2 has too much momentum when pulled out.
Even when the rack mount device 2 is fully pulled out, the stopper portion 7 engages with the stopper engagement protrusion 9 to prevent the rack mount device 2 from falling off the rack 1.

When the rack mount device 2 is to be removed from the rack 1, the lock lever 10 is slid against the spring force of the lock lever pressing spring 45.
The projection 44 of the link lever is disengaged from the position of the link rod coupling arm 20, and the stopper release lever 4 is released from the regulation of the rotation amount by the lock lever 10. Therefore, if the stopper release lever 4 is further operated, the stopper portion 7 becomes 9 to the third position that does not engage with the rack mount device 2
Is ready to be removed from the rack 1. Reference numeral 46 is a button for operating the lock lever 10.

The stopper fitting portion 8 connects the rack mount device 2 to the rack 1
It is provided at a position where the stopper portion 7 is fitted in a state where it is completely housed inside and a position where the stopper portion 7 is fitted when the rack mount device 2 is pulled out to a normal use state.

Further, the stopper engaging projection 9 is provided in the vicinity of the opening of the rack 1 so as to lock the rack mount device 2 in the state of being pulled out from the rack 1 to the maximum extent.
In the embodiment, the stopper lever 6 is rotated, but the stopper lever 6 may be linearly moved.

[Advantage of the Invention] Since the present invention is the slide lock mechanism of the rack mount device as described above, it has the following effects.

(1) The stopper portion can be fitted into the stopper fitting portion to lock the rack mount device at a predetermined position.

(2) By operating the stopper release lever, the stopper part is pulled out from the stopper fitting part and the rack mount device can be slid.

(3) The amount of movement of the stopper lever is regulated by the lock lever so that the stopper portion and the stopper engaging portion are not disengaged from each other, so that the rack mount device can be prevented from falling out of the rack.

[Brief description of drawings]

FIG. 1 is a perspective view of a rack mount device equipped with a slide lock mechanism according to the present invention in use, FIG. 2 is a plan view of essential portions, FIG. 3 is a perspective view of a stopper release lever portion, and FIG.
FIG. 5 is a plan view of the stopper release lever portion, FIG. 5 is a left side view of the release stay of the stopper release lever, FIG. 6 is a front view thereof, FIG. 7 is a right side view thereof, and FIG. 8 is a second link rod. FIG. 9 is a right side view of the same, and FIG. 10 is a front view of the same. 1 ... rack, 2 ... rack mount device, 3 ... casing,
4 ... Stopper release lever, 5 ... Connecting means, 6 ... Stopper lever, 7 ... Stopper part, 8 ... Stopper fitting part, 9 ... Stopper engaging protrusion, 10 ... Lock lever.

Claims (2)

[Scope of utility model registration request] 1. A stopper release lever provided on a front surface side of a casing of a rack mount device slidably supported on a rack, a stopper fitting portion provided on a side rear side of the rack, A stopper engaging protrusion provided on the front side of the side of the rack and the stopper fitting portion are fitted in a state where the rack mount device is housed in the rack, and the rack mount device is moved from the rack by a predetermined amount. Has a stopper portion that comes into contact with the stopper engaging protrusion in the pulled-out state,
A first position at which the stopper portion fits into the stopper fitting portion, a second position at which the stopper portion is disengaged from the stopper fitting portion and abuts the stopper engaging protrusion, and a third position where the stopper portion is disengaged from the stopper engaging protrusion. A stopper lever movably attached to the rack mount device so that the stopper release lever and the stopper lever are interlocked with each other. Slide lock mechanism for rack mount equipment. 2. The rack mount device comprising a lock lever for restricting a movable range of the stopper release lever when the stopper portion of the stopper lever is moved only between the first position and the second position. The slide lock mechanism of the rack mount device according to claim 1, characterized in that the slide lock mechanism is provided in the.