JPH0243232Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a slide rail device that is attached to the lower surface of an object to be stored, such as a developer storage tank, and which is attached to the case body of a copying machine or the like so that it can be taken in and out.

In this case, the developer storage tank is quite heavy, and it is necessary to always pull out the entire tank from the case body when replacing the developer, so in order to maintain its strength, the slide rail device is moved toward the case body side. a fixed rail to be fixed; an intermediate rail to be slidably attached to the fixed rail;
Generally, it consists of a movable rail that is fixed to the bottom surface of the operation panel and slidably attached to an intermediate rail.

By the way, if there are protrusions on the left and right sides of the part that accommodates the developer storage tank in the case body due to the design, and it is necessary to move the tank to avoid this, special It is not possible to smoothly take in and take out the developer storage tank without taking special measures.

This invention relates to a slide rail device used for such special purposes, and according to the drawing, the bottom plate 1 of the case body A is made of iron plate with reinforcing ribs 2a, 2a that rise low in the longitudinal direction on both sides. The fixed rail 2 has mounting pieces 2b, 2b provided at its front end and rear end fixed with screws 3, 3, and a pair of guide grooves 2c with one end bent in the longitudinal direction of the center. 2c is provided.
4 is a stud 5a, 5 in which a main rail 4a having a generally reverse convex cross section and a sub rail 4b having a roughly U-shaped cross section are placed back to back to each other.
This is an intermediate rail fixedly fixed to the fixed rail 2 by the studs 5a and 5b, and can slide freely on the fixed rail 2 while holding the fixed rail 2 by passing the studs 5a and 5b into the guide grooves 2c and 2c. Furthermore, the front end portions of each of the main rail 4a and the subordinate rail 4b are fixed by screws 6 with a gap corresponding to the thickness of the fixed rail 2.

A movable rail 7 having a substantially irregular C-shaped cross section is slidably fitted into guide portions 4c, 4c provided on both sides of the main rail 4a of the intermediate rail 4.
The moving rail 7 is fixed, for example, to the lower surface of a storage object B, which is a developer storage tank of a copying machine, with screws 8, 8, . . . . The movement control means includes a locking piece 10 pivotally attached to the rear end of the main rail 4a of the intermediate rail 4 by a spring 9, and a reinforcing rib 2 of the fixed rail 2.
a, 2a, an engagement recess 7a provided on one side of the rear end of the moving rail 7, and a protrusion 2d formed on the intermediate portion of one of the movable rails 7, and an engagement recess 7a provided on the rear end of the main rail 4a of the intermediate rail 4. a ball 12 held in the through hole 4d provided in the main rail 4a while being held down by the plate spring 11; It consists of a recessed portion 2e, a stopper piece 4e provided on the main rail 4a, and a stopper pin 13 attached to the moving rail 7.

Next, to explain the function and effect, when the object B is completely stored in the case body A, the moving rail 7 as shown in FIG.
Both the intermediate rail 4 and the intermediate rail 4 have moved to the rearmost part of the fixed rail 2, and the engaging recess 7a of the movable rail 7 is locked by the locking piece 10 attached to the intermediate rail 4, and the stopper pin 13 is locked by the locking piece 10 attached to the intermediate rail 4. It is brought into contact with the piece 4e.

When the stored object B is pulled out from this state toward the front side from the case body A, the moving rail 7 is pulled out together, and at the same time, the intermediate portion where the engaging recess 7a of the moving rail 7 is locked by the locking piece 10. The rail 4 is also pulled out together with the moving rail 7. At this time, since the guide grooves 2c and 2c into which the studs 5a and 5b are fitted are bent, the moving rail 7 and the intermediate rail 4 are guided by the bent portions and are pulled out while sliding slightly to the right. As a result, the object to be stored B
is prevented from hitting a protrusion (not shown) inside the case body A. When the intermediate rail 4 and the movable rail 7 are pulled out together with the stored object B and come to approximately the middle position of the fixed rail 2, the locking piece 10 comes into contact with the protrusion 2d provided on the reinforcing rib 2a of the fixed rail 2, and the spring 9 It is locked while being rotated slightly counterclockwise against the pulling force of. At the same time, the ball 12 falls into the recess 2a provided in the fixed rail 2, and its upper part is pressed down by the leaf spring 11. Therefore, when the stored object B is pulled out from the case body A, that is, on the outward journey, the intermediate rail 4 always moves together with the movable rail 7 to a substantially intermediate position of the fixed rail 2, that is, to a certain position. Click to stop. On the other hand, since the movable rail 7 is released from the engagement recess 7a by the engagement piece 10, it slides onto the main rail 4a of the intermediate rail 4 and is further pulled out toward the front side together with the stored object B, and the stopper pin 13 It stops at the position where it comes into contact with the locking piece 4f. As a result, the entire body B to be stored is pulled out from the case body A. FIG. 5 shows exactly this state. Then, even if the stored objects B are all pulled out, the intermediate rail 4 is only pulled out by approximately half, and half of the intermediate rail 4 is pulled out by the fixed rail 2.
Since it stays at the top, it can easily support the weight of the stored object B to a much greater extent than if it were all pulled out.

When storing the pulled-out storage object B into the case body A, when the storage object B is pushed into the case main body A, the ball 12 of the intermediate rail 4 fits into the recess 2e of the fixed rail 2. In addition, since its upper part is held down by the leaf spring 11, it cannot be moved only by the frictional force generated between it and the moving rail 7.
First, only the moving rail 7 moves together with the object to be stored B. Then, the stopper pin 13 provided at the tip of the moving rail 7 comes into contact with the stopper piece 4e provided on the main rail 4a of the intermediate rail 4.
When the stored object B is pressed even harder, the ball 1
2 escapes from the recess 2e, and at the same time, the locking piece 10 and the engagement recess 7a of the moving rail 7 become engaged, and the moving rail 7 and the intermediate rail 4 retreat as one. That is, the intermediate rail 4 always moves from a fixed position during the backward movement, that is, on the return trip, and moves together with the moving rail 7. Therefore, the object B to be stored is always stored in the case main body A while sliding sideways in the opposite direction to the previous one in a fixed position. The position at which the intermediate rail 4 is stopped can be arbitrarily changed by changing the position of the protrusion 2d and other mounting positions.

As explained in detail above, this invention consists of a fixed rail, an intermediate rail, and a movable rail, and when a stored object attached to the movable rail is taken in or out of the case body, it is necessary to slide it from side to side. Since the object to be stored can always be moved left and right at a fixed position, the object to be stored can be smoothly taken in and out of the case body without damaging the object.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, with Fig. 1 being a side sectional view, Fig. 2 being a plan view, Fig. 3 being a front view, Fig. 4 being an exploded perspective view, and Fig. 5 showing the state in use. FIG. A...Case body, B...Stored object, 2...Fixed rail, 2d...Protrusion, 4...Intermediate rail, 7
...Moving rail, 7a... Engaging recess, 9... Spring, 10... Locking piece, 11... Leaf spring, 12
...ball, 13...stopper pin.

Claims (1)

[Claims for Utility Model Registration] (1) A fixing device that is provided between a case body and the lower surface of a stored object that can be freely inserted into and taken out of the case body, and that is fixed to the case body side. A rail, an intermediate rail attached to the fixed rail so as to move in the longitudinal direction and laterally, and a movable rail attached to the intermediate rail while being fixed to the storage object and slidably attached to the intermediate rail. The slide is characterized in that the intermediate rail is provided with a movement control means that moves together with the moving rail up to a certain position on the outward journey and moves together with the moving rail from a certain position on the return journey. rail device. (2) a locking piece in which the movement control means locks the moving rail pivotally connected to an end of the intermediate rail;
Registered as a utility model, characterized in that the locking piece is comprised of a protrusion projecting from the fixed rail on the movement trajectory, and a click stop means provided between the intermediate rail and the fixed rail. A slide rail device according to claim 1.