JPS6329208Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a drawer-type instrument in which the instrument body is housed in a support part so that it can be pulled out, and more specifically, it relates to a stopper mechanism for the instrument body. .

(Prior Art) Conventionally, the stopper mechanism for this type of instrument has been
Various configurations are used, but generally, a number of steps are required for operation, and the number of parts is large, making the configuration complex.

For example, the stopper mechanism described in Japanese Utility Model Publication No. 35-14469 has a protrusion on the outer casing, and a key plate and two spring plates are attached to the inner unit, allowing the key plate to be pulled out and pushed in. By vertically displacing two spring plates, the inner device and the outer casing are engaged with and separated from each other.
That is, the first spring plate is attached so as to always face upward, and the tip thereof is provided with an inclined portion. The second spring plate is always mounted in a downward direction, but its force is selected to be much weaker than the upward force of the first spring plate. The second spring plate is provided with a protrusion. The key board is provided with grooves for slidingly attaching it to the inner device with studs, and is also provided with a notch. This notch is located inside the inclined part of the first spring plate when the key board is pushed in, and is located outside the inclined part of the first spring plate when the key board is pulled out. It is provided.

In such a configuration, when the internal device is housed in the outer casing and the key plate is pushed in, the notch of the key plate is located inside the inclined part of the first spring plate, so the first spring plate is pushed downward. be pushed down. As a result, the second
The second spring plate is displaced downward by itself, and the protrusion provided on the second spring plate hits the convex portion provided on the outer casing to prevent the inner device from coming out of the outer casing. become. When the key plate is pulled out with the inner device housed in the outer casing in this way, the notch of the key plate will be on the outside of the inclined part of the first spring plate.
The first spring plate is displaced upward by itself. As a result, the second spring plate, which is much weaker than the first spring plate, also displaces upward, causing the protrusions to be disengaged from each other, and by pulling the key plate outward, the inner instrument is removed. It can be pulled out from the outer casing.

(Problem to be solved by the invention) However, according to such a conventional structure, the strength of the inner instrument is different from that of the key plate, which has a notch at a predetermined position, and each has a predetermined processing. Therefore, the number of parts increases, the structure becomes complicated, and a considerable number of man-hours are required for assembly.

In addition, since the two spring plates are indirectly displaced by operating the key board when the inner unit and the outer casing are engaged and disengaged, the operator can check the state of displacement of the spring plates themselves. It cannot be confirmed directly.

The present invention focuses on these problems, and its purpose is to create an extremely simple structure using a single leaf spring, which allows the operator to check the operating status by directly displacing the leaf spring. The object of the present invention is to realize a drawer-type instrument equipped with a stopper mechanism.

(Means for Solving the Problems) The present invention solves these problems by providing a drawer-type meter in which the meter body is retractably housed in a support part, in which a protrusion is formed to protrude downward. , the other end is attached to the bottom of the instrument body so that one end is a vertically displaceable free end located near the drawer end of the instrument body, and the vicinity of the other end is bent so as to bias the one end downward. A stopper mechanism is provided, which includes: a stopper piece made of a single leaf spring, and a notch formed on the bottom surface of the supporting part near the insertion end so that a protrusion of the stopper piece fits therein. It is characterized by

(Example) Hereinafter, an example of the present invention will be described in detail using the drawings.

The drawing is a configuration explanatory diagram showing the main parts of an embodiment of the present invention, in which 10 is a support part, 20 is a meter body,
30 is a stopper piece.

The support portion 10 includes a bottom frame 11, a front frame 12, and the like. As the bottom frame 11, for example, a deformed aluminum member having a substantially U-shaped cross section is used. Both sides 11a and 11b of this bottom frame 11
Grooves 11c and 11d are formed in the upper part of the instrument body 20 along the direction in which the instrument body 20 is pulled out. The front frame 12 is formed by bending a sheet metal into a predetermined shape. At the bottom of this front frame 12, a bottom frame 11 is provided.
The bottom plate 12a is attached so as to be flush with the bottom surfaces of the grooves 11c and 11d. This bottom plate 1
Square holes 12b and 12c are provided on the surface of 2a as cutouts forming a stopper mechanism.
In addition, when attaching this front frame 12 to the bottom frame 11, for example, both sides of the bottom plate 12a are formed to extend along the direction in which the instrument body 20 is pulled out, and these both sides are attached to both sides of the bottom frame 11. Face 11
c and 11d and screw them against each other.

The instrument body 20 is accommodated in the support portion 10 so as to be drawable, and includes a base frame 21 and a front plate 22.
It consists of etc. As the base frame 21, for example, a deformed aluminum member integrally molded into a predetermined cross-sectional shape so as to fit into the support portion 10 is used. The bottom surface 21a of the base frame 21 has a plurality of grooves 21b, 21c, 21d, 21e, 21f along the drawing direction.
Grooves 21i and 21j that fit into the grooves 11c and 11d of the bottom frame 11 are formed on both side surfaces 21g and 21h, respectively, along the drawing direction. Like the front frame 12, the front plate 22 is formed by punching and bending a sheet metal into a predetermined shape.
A substantially rectangular window 22b corresponding to the cross-sectional shape of the base frame 21 is provided on the main plane 22a of the front plate 22, and both side surfaces 22c and 22d of the main plane 22a are bent in the same direction into an L-shape. Further, in the lower part 22e of the main plane 22a, there is a groove 21 of the base frame 21.
Mounting holes 22f, 22g (2) corresponding to b, 21f
2g (not shown), square holes 22h, 22i (22i not shown) corresponding to the grooves 21c, 21e, etc. are provided. This front plate 22 has mounting holes 2
2f and 22g are the groove portions 21b and 22g of the base frame 21, respectively.
It is superimposed on 21f and screwed down.

The stopper piece 30 is formed by bending a single leaf spring into a predetermined shape. In this example, it is punched out in an approximately U-shape and has two parallel separating sides 3.
1 and 32 and a connecting side 33 that connects one end of these separating sides 31 and 32. Separation side 31,
The connecting sides 33 of 32 are each bent in the same direction in a crank shape, and the other ends of the separating sides 31 and 32 are also connected to the connecting sides 3 in order to urge the connecting sides 33.
It is bent at a slight inclination angle in the same direction as 3. Furthermore, wedge-shaped protrusions 31a and 32a are stamped in the vicinity of the connecting side 33 of the separating sides 31 and 32 in the same direction as the bending direction of the connecting side 33, and near the other ends of these separating sides 31 and 32, respectively. Attachment holes 31b and 32b are provided. This stopper piece 30 is attached to the front plate 22 of the instrument body 20.
Insert the separation sides 31 and 32 into the square holes 22h and 22i as shown in the figure, and
The mounting hole (not shown) and the mounting holes 31b and 32b are overlapped and screwed together. As a result, the stopper piece 30 is attached to the bottom of the instrument body 20 so that the connecting side 33 is located near the pull-out end of the instrument body 20 as a vertically displaceable free end. Connecting side 3 which is the end
3 will be biased downward.

In such a configuration, by housing the meter body 20 along the grooves 11c and 11d of the support portion 10, the protrusions 31a and 32 of the stopper piece 30
a corresponds to the square hole 12 of the bottom plate 12a of the support part 10;
b and 12c fit together. Since a clicking sound is generated during this fitting, the fitting can also be confirmed audibly. Thereby, the meter body 20 and the support part 10 are locked, and the meter body 20 can be prevented from coming off from the support part 10.

On the other hand, when pulling out the instrument body 20 from the support part 10, the operator directly pushes up the connecting side 33 of the stopper piece 30 upwards with his or her fingers to open the square hole 12b.
12c and the projections 31a, 32a are disengaged from each other. This allows the operator to directly confirm the displacement of the stopper piece 30 as the fitting is released.

With this configuration, only one plate spring used as the stopper piece 30 is required to be installed in the instrument body 20 to configure the stopper mechanism, and the number of parts can be significantly reduced compared to the conventional structure. It is simple and the number of assembly steps can be significantly reduced. Further, when the instrument body 20 is housed in the support part 10, the fitting between the instrument body 20 and the support part 10 can be confirmed audibly, and the instrument body 2 from the support part 10 can be
When pulling out 0, the operator must use the stopper piece 3.
Since the stopper piece 30 is directly pushed upward, the displacement of the stopper piece 30 can be directly confirmed.

In the above embodiment, the wedge-shaped protrusions 31a, 32a are punched and formed on the stopper piece 30, but wedge-shaped tips may be welded to the stopper piece 30.

In addition, in the embodiment, a U-shaped plate spring punched and formed is used as the stopper piece 30, but depending on the shape of the bottom of the base frame 21 of the instrument body 20, a rectangular plate spring may be used. You may also use the

In addition, in the embodiment, the connecting side 3 of the stopper piece 30
3 has been shown to protrude from the front plate 22, it is sufficient that at least the free end serving as the operating section is located near the drawer end so that it can be operated.

(Effects of the invention) As explained above, the invention provides a stopper mechanism that has an extremely simple structure using one leaf spring and allows the operator to check the operating state by directly displacing the leaf spring. It is possible to realize a drawer-type instrument with a built-in device, which has great practical effects.

[Brief explanation of the drawing]

The drawing is an explanatory diagram showing the main part of an embodiment of the present invention. 10...Support part, 20...Measurement body, 30...
Stopper piece (leaf spring).

Claims (1)

[Claims for Utility Model Registration] A drawer-type meter in which the meter body is housed in a supporting part so that it can be pulled out, wherein a protrusion is formed so as to protrude downward, and one end is a free end that can be displaced in a vertical direction. a stopper piece made of a single leaf spring whose other end is attached to the bottom of the instrument body so as to be located near the drawer end of the main body, and whose other end is bent so as to bias the one end downward; A drawer-type instrument, characterized in that a stopper mechanism is provided on the bottom surface of the support portion near the insertion end thereof, the stopper mechanism comprising: a notch portion formed so that the protrusion portion of the stopper piece fits therein.