JPH0446592Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a storage case that can automatically pull out a storage case for storing everyday items such as clothing, bedding, children's toys and equipment from a storage location. The present invention relates to a drawer device.

[Conventional technology and its issues]

This inventor first developed a device for manually pulling out this type of storage case in Japanese Patent Application No. 62-108171 (Japanese Unexamined Patent Publication No. 63
-272308)).

Since this device uses rolling rollers on the road surface of each rail, its movement (pulling out, pushing in) is possible with very light force. However, storing important items in a storage case requires a certain amount of force. A recent trend is for items that must be moved by human power to be as light as possible. Additionally, as we enter an aging society, it may be physically taxing for elderly people to move the devices by hand. Therefore, it is possible to make this work automatically, but it is not just a matter of making it automatic.
It must not be something that could cause harm to people when moved. It is also desirable to have something that can be moved by hand even during a power outage. Furthermore, it must be installed in a safe and secure mechanism within a limited space.

[Means to solve the problem]

Therefore, in this invention, a storage case placed on a movable rail is configured to be able to move forward and backward with respect to a fixed floor surface to which a fixed rail is fixed, and there is a The basic configuration is a drive mechanism consisting of a rod and a feed roller that forcibly feeds the feed rod.Furthermore, the feed rod is attached to the moving rail side, and the feed roller is attached to the fixed rail side. The feed rod is rotatably pivoted to the moving rail, and the feed roller consists of two rollers that pinch the feed rod, one of which is a forced drive roller and the other one is a forced drive roller. One is an idling roller that is urged toward the feed rod by a spring, the other is one in which the elastic force of the spring can be freely adjusted, and one in which an intermediate rail is interposed between the fixed rail and the movable rail. It is an arbitrary configuration of things.

[Effect]

By taking the above means, that is, if the feed rod provided on either the moving rail or the fixed rail is forcibly driven by the drive mechanism provided on the other rail, the moving rail will move relative to the fixed rail. From there, the storage case placed on the moving rail can be pulled out or pushed in.

〔Example〕

Hereinafter, embodiments of this invention will be described with reference to the drawings.

Figure 6 is a perspective view of a conventional manual storage case.
Figures 1 and 2 are partially sectional side views of this storage case equipped with a drawer device according to this invention, and Figure 5 is a plan view as well. 1 has a three-stage advancing/retracting mechanism 6 in which a fixed rail 2, an intermediate rail 3, and a movable rail 4 are assembled via rollers 5 so as to be freely advanced and retractable, and among these, the left and right fixed rails 2 and the left and right intermediate rails 3 are connected by a cross member (connecting member) 7, etc., to form one independent device.

In the advancing/retracting mechanism 6 shown in FIG. 2, etc., the intermediate rail 3 and the movable rail 4 are configured to be able to move forward and backward with respect to the lower fixed rail 2 by means of rolling wheels 5, respectively. First, regarding the structure of the unit, please refer to the previous patent application No. 62-108171 (Japanese Patent Application No. 63-272308).
Although it has been explained in detail in the previous section, for better understanding, the fixed rail 2 has a substantially U-shaped cross section, and the rolling wheels 5a are provided in the front part of the space. is located at the bottom. Next, the intermediate front bottom member 3a of the intermediate rail 3, which has a substantially W-shaped U-shape with an inverted cross section and has rolling wheels 5b and 5c in the front and rear upper and lower spaces, respectively, is attached to the fixed rail 2.
The fixed rail 2 is supported by the rolling wheels 5a, and the rear rolling wheels 5c are mounted on the bottom member 2a of the fixed rail 2. Furthermore, the moving rail 4 has a substantially U-shaped cross section and has rolling wheels 5d at the rear of the space,
The ceiling member 4a is supported by the rolling wheels 5b of the intermediate rail 3, and the rear rolling wheels 5d are assembled on the intermediate rear bottom member 3b of the intermediate rail 3. Here, two forward and backward movement mechanisms 6 having such a configuration are provided on the left and right, and at least the fixed rail 2 and intermediate rail 3 of these are connected by a connecting member 7 to complete one independent device. . Note that it is not only the fixed rail 2 and the intermediate rail 3 that are connected to the left and right sides by the connecting member 7, but also the movable rail 4 as in this embodiment (it is more convenient if it is removable). It becomes more rigid and strong.

The drawer device 1 with the above configuration is installed at a predetermined location, the fixed rail 2 (or the connecting member 7 provided thereon) is fixed to a fixed floor surface 8, etc., and the drawer device 1 is stored on the movable rail 4. If the case 9 is placed, the storage case 9 will come out to the front when pulled out, and retracted to the back when pushed in, according to the telescopic movement described below. That is, first, when the storage case 9 is pulled, only the moving rail 4 moves forward on the intermediate rail 3 due to the rolling of the rear roller 5d and the front roller 5b of the intermediate rail 3. At this time, since a stopper 10 that hits the roller 5b of the intermediate rail 3 is provided near the middle of the moving rail 4, when this stopper 10 hits the roller 5b, the two become one piece, and this time the moving rail 4 and the intermediate Together, the rails 3 move forward on the fixed rail 2 by the rolling of the rear rolling wheels 5c of the intermediate rail 3 and the rolling wheels 5a of the fixed rail 2. Furthermore, since a stopper 11 is also provided near the middle of the intermediate rail 3, this stopper 11 is attached to the roller 5 of the fixed rail 2.
It will move forward until it hits point a, and this state will be maintained. It should be noted that cushioning materials 12 and 13 made of rubber or the like are attached to the contact surfaces of these stoppers 10 and 11 in order to absorb the impact. On the other hand, when pushing in, the movement is opposite to this, and the moving rail 4 and the intermediate rail 3 are pulled in in that order, but at this time, the moving rail 4 is pulled in to the intermediate rail 3, and the intermediate rail 3 is pulled in to the fixed rail 2. Intermediate rail 3 and fixed rail 2 so that they hit each other and stop without impact.
Stoppers 14, 15 and cushioning materials 16, 17 are provided at the rear ends of the two, respectively. By the way, if you pull out the moving rail 4 and the storage case 9 placed on it forward in this way, the storage case 9
Both sides or one side are open, so you can take things in and out from here. Therefore, even if such moving devices are lined up in a corner of a room or close to a wall without gaps, items can be conveniently put in and taken out of the storage case 9 by performing this operation. Therefore, you can use the room more widely.

By the way, when the movable rail 4 etc. is pulled out forward, in order to prevent it from falling downward due to the weight of the storage case 9 placed on it, the fixed rail 2 is
It is preferable that the intermediate front bottom member 3b of the intermediate rail 3, which is supported by the rolling wheels 5a, has a higher slope toward the front. Furthermore, if the front part of the bottom member 2a of the fixed rail 2 is configured to be movable up and down and supported from below by the block 18 and the support metal fitting 19, the screw 20 inserted through the block 18 can be turned. Thus, the inclination of the fixed rail 2, that is, the storage case 9 in the front-rear direction can be adjusted.
Furthermore, a pole-shaped handle 2 is attached to the front of the moving rail 4.
If 1 is provided, it will serve as a handle when pulling out the case, and will also serve as a stopper to prevent the storage case 9 from slipping forward.

Next, in this invention, a drive mechanism 24 consisting of a movable feed rod 22 and a set of feed rollers 23 for forcibly feeding the feed rod 22 is installed between the fixed rail 2 and the movable rail 4 configured as described above. By providing the movable rail 4 with respect to the fixed rail 2,
It is designed to move automatically.

FIG. 3 is a longitudinal sectional view of the drive mechanism 24, and FIG. 4 is a sectional view taken from FIG. 3. In this embodiment,
The feed rod 22 is attached to the movable rail 4 side, and the feed roller 23 is attached to the fixed rail 2 side. That is, the bracket 2 is placed inside the tip of the moving rail 4.
5, and the bracket 25 and the tip of the feed rod 22 are pivotally connected by a pin 26 so as to be rotatable in a vertical plane. However, at this time, a play is provided in the fitting between the feed rod 22 and the pin 26, so that the feed rod 22 can rotate to some extent even within a horizontal plane. The reason why the feed rod 22 can freely rotate in the vertical plane is that it absorbs vertical displacement and moves the moving rail 4.
This is to move smoothly. That is,
Due to its weight, the vertical positional relationship of the moving rail 4 with the feed roller 23 changes depending on the advanced position.
By doing this, no bending load is applied to the feed rod 23. On the other hand, each rail 2,
This is to allow the feed rod 22 to rotate and move smoothly even if there is some error in the parallelism between 3 and 4. The feed roller 23 that forcibly feeds the feed rod 22 is installed on the fixed rail 2, but in this case, the feed roller 23 is installed between two rollers 23 that pinch the feed rod 22 from above and below.
a and 23b, one of them (lower side) is a forced drive roller 23a driven via a motor 27 and a speed reducer 28, and the other (upper side) is an idle roller 23b. show.
By doing so, the forced drive roller 23a of the feed roller 23 slips when an abnormal load is applied to the moving rail 4, etc., and serves as an overload safety device. In addition, in the event of a power outage, it can be returned to its original state by pushing it with your hand (it can be moved passively in reverse). To explain these configurations in more detail, the forced drive roller 23a
is firmly fitted to the output shaft 27a of the motor 27 via a key 29, and the idling roller 23b is loosely fitted to an idling shaft 30 installed parallel to the output shaft 27a. A set of idle rollers 23b is housed in a bracket 31, and this bracket 31
However, the inside of the box 32 that houses this and the forced drive roller 23a can be adjusted to move closer to or away from the forced drive roller 23a. That is, the shaft 33 of the bracket 31 is connected to the box 3.
The bracket 31 is slidably fitted into an adjustment screw 34 screwed into the top 32a of the bracket 31, and a spring 35 is interposed between the adjustment screw 34 and the bracket 31. As a result, if an overload is applied to the feed rod 22, the spring 35 is compressed and the feed rod 2
2 slips are allowed, and even if there is a power outage, the feed rod 22 can be moved forward and backward by being pushed and pulled by hand. Furthermore, by adjusting the amount of advance of the adjustment screw 34, this spring 3
The strength of 5 can also be adjusted. Note that the forced drive roller 2
Both rollers 3a and 23b are provided with grooves 36 corresponding to the circular cross-sectional shape of the feed rod 22 on their outer peripheries, so that the feed rod 22 is compressed when inserted into each groove 36. Further, in this embodiment, the groove 36 has a circular cross-section, but
It may have any shape (for example, V-shape) as long as it can compress the feed rod 22.

As described above, when the storage case 9 placed on the moving rail 4 is to be pulled out, the start switch (not shown) of the motor 27 is pressed to rotate the forced drive roller 23a and send the feed rod 22. Then, set the stroke end to switches 37 and 38.
is detected, the motor 27 stops operating (3
9 and 40 are sensing pieces attached to the feed rod 22 for this purpose). Note that the motor 27 used here
To give an example of the capacity, etc., in the case of a moving device for 100 kg, it is preferable to use a 100 V, 7.5 W motor with a speed reducer and to feed the feed rod 22 at a speed of 65 mm/sec.

By the way, in the above embodiment, the intermediate rail 3 was provided between the fixed rail 2 and the movable rail 4. However, this invention can also be applied even if the intermediate rail 3 is omitted. Of course.

[Effect of idea]

As mentioned above, this idea is as follows.
That is, a drive mechanism 2 consisting of a feed rod 22 and a feed roller 23 is placed between the moving rail 4 and the fixed rail 2.
4, the storage case 9 can be pulled out and pushed in automatically, saving labor. In addition, since the feed rod 22 is attached to the moving rail 4 side and the feed roller 23 is attached to the fixed rail 2 side, a support structure for both ends of the feed rod 22 is not required, and the length of the feed rod 22 can be reduced accordingly. It can be made shorter. Further, the feed rod 22 is rotatably pivotally connected to the moving rail 4, and the feed roller 23 consists of two rollers 23a and 23b that pinch the feed rod 22, one of which is a forced drive roller. 23a, and the other one is an idling roller 23b that is urged against the feed rod 22 by a spring 35 or the like, the support structure for the feed rod 22 only needs to be the pin 26 at the front end (the support structure at the other end is 23 parts of the feed roller also serve as
It also absorbs the falling of the feed rod 22 due to the movement of the moving rail 4. In addition, due to power outage, etc., moving rail 4
If the feed rod 22 stops in the middle, pull out (push in) the storage case 9 by hand.
can move and return to its original state. Also, feed roller 2
If the idling roller 23b of 3 is urged against the feed rod 22 by a spring 35 or the like, the movement will be stopped if the storage case 9 touches something while it is moving, so it can be used as an overload safety device. Furthermore, in this case, by operating the adjustment screw 34 to adjust the strength of the spring 35, the overload setting value can be adjusted.

[Brief explanation of the drawing]

Figures 1 and 2 are partially sectional side views of the drawer;
Fig. 3 is a vertical sectional view of the drive mechanism, Fig. 4 is a - sectional view of Fig. 3, Fig. 5 is a plan view of the drawing device, and Fig. 6 is a longitudinal sectional view of the drive mechanism.
The figure is a perspective view of the drawer device without the drive mechanism attached. Code, 2...Fixed rail, 3...Intermediate rail,
4... Moving rail, 8... Fixed floor surface, 9... Storage case, 22... Feed rod, 23... Feed roller, 23a... Forced drive roller, 23b... Idle roller, 24... Drive mechanism , 35...spring.

Claims (1)

[Claims for Utility Model Registration] A storage case 9 placed on a movable rail 4 is configured to be movable toward and away from a fixed floor surface 8 to which a fixed rail 2 is fixed, wherein the movable rail 4 and the fixed rail 2, a drive mechanism 24 consisting of a feed rod 22 and a feed roller 23 for forcibly feeding the feed rod 22 is provided. 2. A storage case pull-out device according to claim 1, wherein the feed rod 22 is attached to the movable rail 4 side, and the feed roller 23 is attached to the fixed rail 2 side. The feed rod 22 is rotatably pivoted to the moving rail 4, and the feed roller 23 is composed of two rollers 2 that pinch the feed rod 22.
3a and 23b, one of which is a forced drive roller 23a, and the other one is an idling roller 23b that is urged toward the feed rod 22 by a spring 35. A drawing device for a storage case according to claim 1, wherein the resilient force of the spring 35 is freely adjustable. A storage case drawer device according to claim 1, wherein an intermediate rail (3) is interposed between the fixed rail (2) and the movable rail (4).