JPH0319777Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a drawer device used for, for example, sliding a housing of an electronic device in and out of a storage case.

[Prior Art] As a mechanism for sliding a housing stored in a case in and out, for example,
A drawer device having a structure shown in FIGS. 3 to 6 is known.

FIG. 3 is a cross-sectional view showing an example of a conventional drawer device. In FIG. 3, 1 is a housing housing, for example, an electronic device.

A tip rail 2 having a substantially U-shaped cross section is attached to the side surface 1a of the housing 1, and as shown in FIG. It is slidably engaged. The intermediate rail 4 is a rail material on which a pair of protruding edge pieces 4a for holding the ball bearing 3 are formed, and a convex shape is formed in the center toward the end rail 2 side along the longitudinal direction. A striped portion 4b is provided. A fixed rail 6 is engaged with the outer side of the projecting edge piece 4a of the intermediate rail 4 via a ball bearing 5.
is the inner surface 7a of the case 7 that houses the housing 1.
is fixed. Therefore, the housing 1 is slidably attached to the case 7 via the intermediate rail 4 supported by ball bearings 3 and 5.

Next, as shown in FIGS. 3 and 5, a leaf spring 8 biased toward the intermediate rail 4 is provided at the rear half of the tip rail 2. As shown in FIGS. An engagement hole 8a is formed near the tip of the leaf spring 8,
When the housing 1 is pulled out to a certain extent, the intermediate rail 4
The structure is such that the positional relationship between the housing 1 and the intermediate rail 4 is fixed when the engagement hole 8a of the leaf spring 8 is engaged with the stopper member 9 provided on the protruding strip 4b. When it is desired to release the fixation, the tip of the leaf spring 8 can be pushed inward (toward the tip rail 2 side) with a finger or the like, and at the same time, the housing 1 can be pushed in the direction of the case 7.

Further, as shown in FIGS. 3 and 6, a notch hole 4c is formed in the rear end of the intermediate rail 4, and a stopper metal fitting 10 is formed in the protruding strip 4b near the notch hole 4c. It is pivoted so that it can swing freely. A locking portion 10a having a substantially U-shaped cross section and provided at the swinging end of the stopper fitting 10 is locked to a stopper convex portion 6a provided at the center of the fixed rail 6 inside the notch hole 4c. , the movement of the intermediate rail 4 in the storage direction is fixed. And intermediate rail 4
When the housing 1 moves to a certain extent in the storage direction along the groove 2a formed at the rear end of the tip rail 2
is engaged with the protruding piece 10b of the stopper fitting 10. At this time, the stopper fitting 10 is attached to each rail 2,
4 and 6, and the stopper convex portion 6
a is inserted into the notch hole 4 without being caught by the locking part 10a.
You will be able to pass c. Therefore, the fixed state is released, and the intermediate rail 4, together with the housing 1 and the tip rail 2, moves along the fixed rail 6 to the case 7.
You can slide inside.

Further, at the rear end of the intermediate rail 4 and the tip of the fixed rail 6, flange portions 4 for holding strainers (not shown) of the ball bearings 5 are respectively provided.
d and 6d are provided so that the intermediate rail 4 is not pulled out in the drawing direction.

[Problems to be solved by the invention] According to the conventional drawer device described above, the housing 1
Rails are provided on both the housing 1 and the case 7, and an intermediate rail 4 is slidably interposed between the two to support the housing 1. Therefore, the device as a whole has a relatively large number of parts, and the manufacturing cost is high, making it uneconomical. Further, the intermediate rail 4 must have a shape that can hold the ball bearings 3 and 5 used in the slide mechanism, but this shape cannot be said to have sufficient strength against bending, and the number of parts is limited. The problem was that the weight of the casing that could be supported was small considering its complex structure.

[Purpose of the invention] The present invention was devised to solve the above-mentioned problems. It has a simple structure with a small number of parts, and has a drawer body (casing) that weighs at least the same as the conventional device. The object of the present invention is to provide a drawer device that can be put in and taken out.

[Means for solving the problems] In order to achieve the above object, the present invention has a main body 11.
a plurality of rollers 12 rotatably fixed to the outside side 11a of the main body 11; a plurality of rollers 16 rotatably fixed to the inside side 15a of the case 15 housing the main body 11; two upper and lower guide grooves 23 and 24 for engaging the roller 12 of the main body 11 and the roller 16 of the case 15 in different grooves from opposite sides;
a guide rail 19 slidably interposed between the main body 11 and the case 15;
The main body 11 and the case 15 are provided with a main body side lock cam 13 and a case side lock cam 17 having locking pieces 13a and 17a, respectively, and the guide grooves 23 and 24 of the guide rail 19 are provided with the locking pieces 13a and 17a, respectively. Notch groove 29 in which 17a is locked,
30, and when the main body 11 is pulled out, the locking pieces 13a and 17a are locked in the notch grooves 29 and 30, respectively, and the pulled out state is fixed.

[Function] When the main body 11 is pulled out, both sides 1 of the main body 11
The roller 12 directly attached to 1a rolls along one guide groove 24 of the guide rail 19, allowing the main body 11 to move smoothly in the drawing direction.

When the guide rail 19 is pulled out together with the main body 11, the rollers 16 directly attached to both inner sides 15a of the case 15 that houses the main body 11 move.
Since the main body 11 rotates along the movement of the other guide groove 23 of the guide rail 19, the main body 11 moves to a position completely away from the case 15.

Also, when pulling out the main body 11,
The locking piece 13 of the main body side lock cam 13 provided in
a is locked in a notch groove 29 provided in the guide groove 24 of the guide rail 19, and the locking piece 17a of the case side lock cam 17 provided in the case 15 is locked in the notch groove 29 provided in the guide groove 23 of the guide rail 19. Groove 30
The main body 11 is locked in the drawn-out state.

[Example] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention. 11 in the figure is a box-shaped main body that is pulled out by a drawer device, and depending on the purpose of use, for example, electronic equipment etc. can be stored inside, or it can be left hollow as a simple drawer box. .

On the outer sides 11a, 11a of both side surfaces of the main body 11, two rollers 12, 12 are respectively attached to corresponding positions near the rear end so as to be rotatable in parallel to the in/out direction A of the main body 11. ing.

Further, a plate-shaped main body side lock cam 13 is provided between each of the two rollers 12, 12. One end of the lock cam 13 on the main body side is
The main body 11 is pivotally supported in a swingable manner on a side surface 11a, and a locking piece 13a is provided at the other end of the main body 11 facing downward.

Also, below the roller 12 near the rear end of the main body 11 among the two rollers 12, 12,
A cylindrical main body side stopper member 14 is fixed to each side surface 11a of the main body 11.

Next, in FIG. 1, 15 is a case that houses the main body 11. The case 15 has a box shape with an open front end, and the inner sides 15 on both sides are open.
Two rollers 16, 16 are respectively mounted at opposing positions of a, 15a so as to be rotatable along the in/out direction of the main body 11 indicated by arrow B in FIG.

Further, a plate-shaped case-side lock cam 17 is provided between each of the two rollers 16, 16. One end of the case-side lock cam 17 is rotatably supported on the inner surface 15a of the case 15, and the other end facing the front end of the case 15 has a locking piece 17a extending downward. is provided.

Further, a cylindrical case-side stopper member 18 is provided above the roller 16 near the rear end of the case 15 among the two rollers 16, 16.
It is fixedly installed on the inner surface 15a of.

Next, a pair of guide rails 19, 19 which are interposed between the main body 11 and the case 15 and support the main body 11 so as to be slidable with respect to the case 15 will be explained.

As shown in FIG. 1, the guide rail 19 has a straight S-shaped cross section. Both upper and lower edges of the step-shaped web 20 are bent outward and inward, respectively, to form upper and lower flanges 21a, 21.
b and upper and lower lips 22a, 22b, and the inside of the upper flange 21a is an upper guide groove 23 that opens outward, and the inside of the lower flange 21b is an upper guide groove 24 that opens inward.

The roller 12 of the main body 11 and the main body side lock cam 13 are engaged with the lower guide grooves 24, 24 of the guide rails 19, 19 from the inside. Also,
The roller 16 of the case 15 and the case side lock cam 17 are engaged with the upper guide grooves 23, 23 of the guide rails 19, 19 from the outside.
The guide rails 19, 19 to which the guide rails 19 are attached are configured to be slidable with respect to the case 15 together with the main body 11.

Next, as shown in FIGS. 1 and 2 a to c,
At the front and rear ends of the guide rail 19, there are a total of four stopper angles 25, 26, 27, 28, one each on the outer surface of the upper and lower flanges 21a and 21b.
is provided. When the main body 11 is stored, the main body-side stopper member 14 is engaged with the stopper angle 28, and the stopper angle 25 is engaged with the case-side stopper member 18, so that the main body 11 and the case 15 are positioned. It is configured. Furthermore, when the main body 11 is pulled out, the stopper angle 27 is engaged with the case-side stopper member 18 to prevent the guide rail 19 from falling off, and the main-body-side stopper member 14 is engaged with the stopper angle 26 to prevent the guide rail 19 from falling off. 11 is designed to prevent it from coming off the guide rail 19.

Next, a notch groove 29 for locking is formed at a key point of the lower flange 21b near the front end of the guide rail 19, and when the main body 11 is pulled out, the locking piece 13a of the main body side lock cam 13 is inserted into the notch. It is configured to sink into the groove 29 and fix the main body 11 in position relative to the guide rail 19. Furthermore, a notch groove 30 for locking is formed at a key point in the center of the web 20 near the rear end of the guide rail 19, so that when the guide rail 19 is pulled out from the case 15 by a predetermined length, The locking piece 17a of the side lock cam 17 is configured to fall into the notch groove 30 to fix the guide rail 19 in position with respect to the case 15.

Although not shown, in this embodiment, the main body 11
A locking device is provided to fix the main body 11 in the stored state, and the main body 11 is configured not to be pulled out except when necessary.

Next, the operation of the configuration described above will be explained.

In the stored state shown in FIG. 2a, a locking device (not shown) is released and the main body 11 is pulled out forward (to the right in FIG. 2).

Two rollers 12, 12 provided on both sides 11a, 11a of the main body 11 roll along the lower guide groove 24 of the guide rail 19, and the main body 11 moves smoothly in the drawing direction.

The main body side stopper member 14 is engaged with the stopper angle 26 of the guide rail 19, and the guide rail 1
9 starts to be pulled out as the main body 11 moves, the locking piece 13a of the main body side lock cam 13
falls into the notched groove 29, and the positional relationship between the main body 11 and the guide rail 19 is fixed.

Continuing to pull out the main body 11 forward,
The guide rail 19 fixed to the main body 11 slides forward while rotating the two rollers 16, 16 provided on both inner surfaces 15a, 15a of the case 15 in the upper guide groove 23. To go.

Then, as shown in FIG. 2b, the guide rail 1
The stopper angle 27 of 9 is engaged with the case-side stopper member 18, and movement of the guide rail 19 and the main body 11 in the drawing direction is restricted. At the same time, the locking piece 17a of the case side lock cam 17
falls into the notched groove 30, the movement of the guide rail 19 and the main body 11 fixed to the guide rail 19 in the storage direction (leftward in FIG. 2) is also restricted. When the main body 11 is pulled out, the guide rail 19 receives a bending load in the vertical direction depending on the weight of the main body 11.
24 are arranged in parallel and have a cross-sectional shape that is strong against bending in the vertical direction, so there is no problem in terms of safety.

From the pulled out state, move the main body 11 to the case 15.
To store it inside, first use your fingers etc. to press the notch groove 29.
The locking piece 13 of the main body side lock cam 13 has fallen into the
a to release the fixed relationship between the main body 11 and the guide rail 19. If the main body 11 is subsequently pushed in the storing direction, the main body 11 moves in the storing direction along the guide rail 19. In this state, case 1
5 and the guide rail 19 are the lock cam 1 on the case side.
Since the positional relationship is fixed by 7, it will not move. Furthermore, if you accidentally try to pull out the main body 11 forward after releasing the main body side lock cam 13, the main body side stopper member 14 will be locked by the stopper angle 26, so that the main body 11 will be removed from the guide rail 19. It is safe and will not fall off.

Next, when the main body 11 is housed in the case 15 along the guide rail 19, the roller 12 of the main body 11 moves to the locking piece of the case side lock cam 17 that protrudes from the notch groove 30 into the lower guide groove 24. Since it contacts 17a and pushes it up, the fixed relationship between the case 15 and the guide rail 19 is released. Then, when the main body 11 is pushed further, the main body side stopper member 14 hits the stopper angle 28,
The main body 11 and the guide rail 19 move together in the storage direction, and the main body 11 and the drawer device move together in the storage direction.
It will return to the storage state shown in Figure a.

In this way, when storing the main body 11, the case side lock cam 1 provided on the back side can be locked by simply releasing the lock of the main body side lock cam 13 provided on the front side.
7 is automatically released.

[Effects of the Invention] According to the drawer device of the present invention, the structure is simple and the manufacturing cost can be reduced.

In addition, the main body can be moved to a position completely away from the case, and it can be locked and fixed in this drawn state, so even if the main body is carelessly pushed after being pulled out, this locking will not be released. It is possible to obtain safety that can avoid dangerous situations such as being caught in a finger.

Furthermore, this locked state can be released with a simple operation, improving operability.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, FIG. 2a is a sectional view showing the embodiment in a stored state, and FIG. 2b is a sectional view showing the same in a pulled out state. Fig. 2c is a cross-sectional view showing the state in the middle of storage, Fig. 3 is a cross-sectional view showing an example of a conventional drawer device, and Fig. 4 is a view taken along the line A-A in Fig. 3; 5 is an enlarged perspective view of the section in FIG. 3, and FIG. 6 is an enlarged perspective view of the section in FIG. 3. DESCRIPTION OF SYMBOLS 11... Main body, 11a... Side surface, 12... Roller of main body 11, 15... Case, 15a... Inner surface, 16... Roller of case 15, 19... Guide rail, 23... Upper guide groove, 24...Lower guide groove.

Claims (1)

[Claims for Utility Model Registration] A plurality of rollers 12 rotatably fixed to the outer side 11a of the main body 11, and a plurality of rollers 12 rotatably fixed to the inner side 15a of the side surface of a case 15 that houses the main body. and two upper and lower guide grooves 23 and 24 for engaging the rollers of the main body and the rollers of the case in different grooves from opposite sides, and the rollers 16 of the main body and the case a guide rail 19 slidably interposed between the main body and the case; and locking pieces 13a on the main body and the case, respectively.
A main body side lock cam 13 and a case side lock cam 17 are provided, and the guide grooves of the guide rail are provided with notch grooves 29 and 30 in which the locking pieces are respectively locked, so that the locking pieces can be locked when the main body is pulled out. A drawer device characterized in that the two are respectively locked in the notched grooves and the drawn state is fixed.