JPS6133293Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a slide rail used for a document moving table of a copying machine, and particularly to a slide rail for preventing finger-picking accidents at a retainer stopper portion.

2. Description of the Related Art As a slide rail for a document moving table of a copying machine, etc., structures shown in FIGS. 1 to 4 are commonly used.

This slide rail has an outer rail 1 having a general cross-sectional shape with a ball guide 1a formed by raising both ears of a long thin strip plate, and a ball guide 2a similarly formed by raising both ears of a long thin strip plate. It consists of an inner rail 2, which has a general cross-sectional shape, and a ball retainer 3 that holds two rows of balls 3a on the left and right. and the left and right inner ball guides 2a are arranged in parallel inside and outside, and a ball retainer is inserted between both rails, and the two rows of balls 3a on the left and right are connected to each row of the left and right outer ball guides 1a.
and the left and right inner ball guides 2a, respectively, and both rails are assembled so as to be slidable relative to each other in the longitudinal direction.

For example, when the slide rail is used as a document moving table in a copying machine or the like, the inner rail 2 is fixed to the equipment side and the document moving table is mounted on the outer rail 1. And on the other end side are the front part 4 and rear part 5 of the normal ball retainer 3.
is formed to protrude toward the inner rail 2 side, and when the outer rail 1 slides toward one end of the inner rail together with the document moving table, one end of the ball retainer 3 that has slid in the same direction hits the front pad 4. conversely, when the outer rail 1 slides toward the other end of the inner rail together with the document moving table, the other end of the ball retainer 3, which has been sliding in the same direction, hits the rear support 5. In addition, for example, ball retainer 3
When one end of the ball retainer 3 hits the front pad 4 or the rear pad 5 (in the illustrated example, one end of the ball retainer 3 hits the front pad 4), the end of the retainer 3 is simultaneously pressed against the inner rail. It is used in such a way that the movement of the outer rail 1 and the original moving table is stopped by hitting a raised piece (retainer stopper 6) cut and raised on the inner surface of the outer rail 1.

Therefore, if there is a retainer stopper 6 raised from the inner rail 2 as described above, the outer rail 1
It has been pointed out that when a finger passes over the retainer stopper 6, there is a risk of a finger being accidentally caught between the end of the outer rail 1 and the stopper 6, causing a so-called finger-jamming accident. It is desired to provide preventive measures.

For example, Utility Model Application No. 58-59054 was proposed with the intention of preventing this.

As shown in FIGS. 5 and 6, in this known example, a flat part made of a synthetic resin molded product called a finger jam prevention member 7 with an inclined upper surface is prepared, and this is attached to the retainer stopper 6. The retainer 3 is arranged on the retainer abutting side, and after passing through the slope of the finger jam prevention member 7, the end face of the retainer 3 collides with the tip of the retainer stopper 6 above the slope. The aim is to reduce the finger pinching margin as much as possible to prevent the above-mentioned finger jamming accidents.

Although the finger jamming prevention member 7 reduces the finger jamming margin of the retainer stopper 6 as much as possible, in the end the tip of the stopper 6 is attached to the retainer 3.
The problem that the prevention member 7 has to be placed in a state where it protrudes from the upper surface by a height sufficient for it to come into contact with the prevention member 7 leaves an opportunity for fingers to be caught or caught, and a dangerous situation still remains.

Therefore, the present invention fundamentally solves these problems and provides a slide rail equipped with an improved finger jam prevention means that can provide a substantially complete finger jam prevention effect.

7 to 10 show a first embodiment formed according to the gist of the present invention, and FIGS. 11 and 12 show a second embodiment, respectively.

Since the basic shape of the slide rail in both embodiments is the same as that shown in FIGS. 1 to 6, the same parts are designated by the same reference numerals and detailed explanation thereof will be omitted.

Both embodiments use a slide rail as a base body, which is made up of an outer rail 1 and an inner rail 2 made of the aforementioned elongated strip plates, which are coupled to each other so as to be slidable relative to each other in the longitudinal direction of the rails with a ball retainer 3 interposed therebetween.

In the first embodiment, a retainer stopper 6 is raised from the inner surface of the inner rail 2 of the slide rail in the same manner as described above, and the end face of the ball retainer 3 is brought into contact with this retainer stopper 6 to prevent its movement in one direction. In addition, an elastic inclined plate 8A for preventing finger jamming is arranged on the ball retainer abutting side of the retainer stopper 6, and is higher on the side closer to the retainer stopper 6 and lower on the side away from the retainer stopper. . The inclined plate 8A has a lower side of the inclined piece 8a fixed to the inner surface of the inner rail 2 with a mounting piece 8c connected to the lower end, and the higher side is a free end, and the inner rail 2 is attached from the free end.
It has a descending prevention piece 8b bent downward toward the inner surface.

The finger jam prevention elastic inclined plate 8A is provided so as to be elastically movable about the lower fixed part as a fulcrum, as described above.
A downward force applied to the inclined piece 8a causes an elastic displacement in the sinking direction, and when the downward force is released, the inclined piece 8a returns to the floating direction. The above-mentioned downward force is applied by the retainer 3 riding on the inclined piece 8a as it moves in one direction, and the downward pressing that accompanies the riding.

Preferably, the finger jam prevention elastic inclined plate 8A is set such that the height of its higher side end exceeds the height of the retainer stopper 6 (therefore, the position in contact with the retainer 3), as shown in the figure. It is always kept in the same state, and when a downward pressing force is applied due to contact with the end of the retainer 3, the higher side sinks below the stopper 6, and the lowering prevention piece 8b moves against the inner rail 2.
At the position where it hits the inner surface, the end of the stopper 6 is relatively projected upwards of the inclined plate 8A, and the retainer 3
contact is possible.

As can be understood from the above, the elastic inclined plate 8A for preventing finger jamming can float and sink on the side of the stopper 6, and by utilizing this, the higher part of the inclined plate 8A can be made to match the upper limit of the stopper 6, or the upper limit is infinite. This eliminates the necessity of projecting the end of the stopper 6 to the upper side of the inclined plate 8A in advance as in the conventional case, and the above-mentioned problems (finger catching, finger jamming) caused by this.

To attach the finger jam prevention elastic inclined plate 8A and the later-described inclined plate 8B to the inner rail 3, for example, as shown in the figure, insert the mounting piece 8c under the tongue piece 10 cut and raised toward the inner surface of the inner rail. are integrated by caulking or welding to the tongue piece 10, and furthermore, a handle hole 8d is made in the center of the mounting piece 8c,
Align the handle hole 9 drilled in the inner rail 2 with both holes 8.
Press the handle 11 into the holes d and 9 to determine the position. The handle 11 may be formed by protruding the inner rail 2 forming plate material to the inner surface.

As mentioned above, the elastic inclined plate 8A for preventing finger jamming according to the first embodiment is configured such that its high free end is disposed close to (or in contact with) one side of the upper end of the retainer stopper 6. The elastic inclined plate 8B for preventing finger jamming shown in FIGS. 11 and 12 extends the inclined piece 8a disposed on one side of the retainer stopper 6 beyond the upper part of the retainer stopper 6 to the other side of the same stopper. , the whole is made into a curved shape, and a seat piece 8b' is connected to the free end thereof, and this is connected to the inner rail 2.
In addition to contacting the inner surface, a window 8 is provided in a high portion of the inclined piece 8a, that is, in the inclined plate portion directly above the stopper 6.
This figure shows a case in which the stopper 6 is allowed to protrude and retract from the window 8e.

When the retainer 3 moves in the same direction in conjunction with the one-way slide of the outer rail 1, the ends of the finger jam prevention elastic inclined plates 8A and 8B abut against the inclined piece 8a, The upper end of the stopper 6 is passed through the window 8e by moving forward while sliding on its upper surface and pressing it downward (toward the inner surface of the inner rail) to bend it in the same direction. ) Protrude upward from the inclined plates 8A and 8B,
The retainer 3 comes into contact with the upper end of the protruding stopper while riding on the inclined piece 8a, and comes to a stop. At the same time, the front stopper 4 comes into contact with the other end of the retainer 3 and stops the movement of the outer rail 1.

In the above condition, the stopper 8
Even if a finger is placed near b, in the present invention, the elastic inclined plates 8A and 8B for preventing finger jamming are arranged so that they can float and sink, and by utilizing the floating and sinking action, the stopper 6 is moved in and out to prevent collision with the retainer 3. Since it is configured to allow contact with the stopper 6, the elastic inclined plates 8A and 8B for preventing finger jamming are used.
When viewed from the retainer 3 side, it is possible to place the upper end in a completely concealed or almost concealed state, that is, in a state in which the fingers do not get caught, and the fingers can be placed in a state where the fingers are not caught in the stopper 6.
It is possible to completely prevent the previous situation where the retainer gets caught in the side position and causes the retainer to become jammed, and while achieving the same preventive effect, the retainer stopper function can be fully exerted without any hindrance.

FIGS. 13 to 16 show other embodiments constructed according to the spirit of the present invention described above.

The elastic inclined plate 8C is formed into a dogleg shape when viewed from the side, one piece of which is used as the inclined piece 8a, the other piece is used as the mounting piece 8c, and the bent part is used as the elastic hinge 8f.
The mounting piece 8c is fixed to the inner surface of the inner rail 2, and the protrusion 8g formed on the lower surface of the end of the mounting piece 8c is connected to the retainer stopper 6 so that it can rise and fall. Hole 6
a, and then make the mounting piece 8C wider than the inclined piece 8a so that both ears of the mounting piece 8c protrude from both ears of the inclined piece 8a. Pressure-fit into the corner groove 2b (groove formed on the inner surface of the bent part of the ball guide 2a) in the left and right longitudinal direction of the ball guide 2a,
The elastic inclined plate 8C, which is a finger jam prevention member, is attached to the inner rail 2.
It is fixed to.

Of course, it is also possible to independently use only the press-fit fixation that utilizes the corner groove 2b of the inner rail 2.

[Brief explanation of the drawing]

Figures 1 to 6 show conventional examples, Figure 1 is an exploded perspective view of the slide rail, Figure 2 is a sectional view of the slide rail, Figure 3 is a rear view of the rail,
Fig. 4 is a rear view of the rail showing a state in which it has slid in one direction, Fig. 5 is a perspective view showing the main parts of the slide rail shown in Figs. Fig. 6 is a perspective view of a finger jam prevention member used in the same rail, Figs. 7 to 10 show a first embodiment of the slide rail of the present invention, and Figs. 11 and 12 show a second embodiment of the same. , Fig. 7 is an exploded perspective view of the slide rail according to the first embodiment, Fig. 8 is a perspective view showing the main parts of the rail in the same assembled state, and Fig. 9 is a cross section taken along the line A-A in Fig. 8. Fig. 10 is a sectional view of the main part of the rail showing the state of collision with the retainer stopper, Fig. 11 is a perspective view showing the main part of the slide rail of the second embodiment, and Fig. 12 is the main part of the slide rail as shown in Fig. A sectional view taken along the line B-B, FIG. 13 is a perspective view of a third embodiment of an elastic sloped plate for preventing finger jamming, and FIG. 14 is a perspective view of the main parts of a slide rail in which the same sloped plate can be implemented.
Fig. 15 is a sectional view taken along the line C-C, and Fig. 16 is a sectional view taken along the line D-
It is a sectional view taken along the D line. 1... Outer rail, 2... Inner rail, 3... Ball retainer, 6... Retainer stopper, 8
A, 8B, 8C...Elastic inclined plate for preventing finger jamming that can float and sink, 8a... Inclined piece for preventing finger jamming.

Claims (1)

[Scope of utility model registration request] In a slide rail in which an outer rail and an inner rail made of elongated strips are joined to each other so as to be slidable relative to each other in the longitudinal direction of the rail with a ball retainer interposed therebetween, the inner surface of the inner rail abuts against the end surface of the ball retainer so that one A retainer stopper that prevents directional movement is raised, and the retainer stopper is located on the ball retainer abutting side, and is in a higher position on the side closer to the retainer stopper and lower on the side away from the retainer stopper to prevent finger jamming. 1. A slide rail characterized in that an elastic inclined plate is arranged, and the inclined plate is attached to the inner surface of the inner rail so that it can float up and down by elastic displacement.