JP3517497B2 - Elevator display device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator display device installed in a car of an elevator and around a hall entrance / exit to display the position and direction of the elevator.

[0002]

2. Description of the Related Art An elevator display device is installed in an elevator car and around a landing entrance / exit to display the position and direction of the elevator. The display device of this elevator is configured by attaching a surface plate to a box.

FIG. 9 shows a longitudinal sectional view of such an elevator display device, and FIG. 10 shows a transverse sectional view thereof. A leaf spring 3 and a support plate 4 are provided at the upper end and the lower end on the back surface side of the front plate 1.
Are attached with bolts 5 and nuts 6. Support plate 4
Although not shown in the figure, a display unit for displaying the position and direction of the elevator, a call button, and the like are attached.

Then, the front plate 1 is attached to the box 2 by inserting the leaf spring 3 on the back side thereof into the box 2. That is, the leaf spring 2 is provided with the bent portion 7, and the bent portion 7 presses the side plate of the box 2 to hold the display plate 1 in the box 2 and
Attached to.

In such an elevator display device, since the surface plate 1 can be attached and detached with a constant weight, it can be stolen by mischief or the like, or it can fall by its own weight. Therefore, as disclosed in Japanese Utility Model Laid-Open No. 61-10566, a device devised to maintain the frictional force for attaching the surface plate 1 to the box 2 to a desired design value, and Japanese Utility Model Laid-Open No. 62-189359. As shown in Fig. 1, there are some which are designed to prevent their own weight from falling.

In Japanese Utility Model Laid-Open No. 61-10566, a leaf spring is attached to the box side, and an insertion plate engaging with the leaf spring is provided on the front plate, and the upper end and the lower end on the back side of the front plate. The insertion plate of either one of the parts can be slid without being fixed, so that it can be pressed against the surface plate without any gaps, thus ensuring the initial clearance force.

In Japanese Utility Model Laid-Open No. 189359/1987, the leaf spring attached to the box side is divided into three parts, and the insertion plate provided on the surface plate is provided with a corrugated corrugation. The error of embedding the leaf spring in 2 is absorbed to prevent the weight from falling.

[0008]

However, the above-mentioned Japanese Utility Model Publication No. 61-10566 and Japanese Utility Model Publication No. 62-1893.
In the one disclosed in Japanese Patent No. 59, since the frictional force when inserting the leaf spring into the box and the frictional force when pulling out the leaf spring from the box are the same, The removal weight is the same constant weight. Therefore, it may still be stolen due to mischief or the like, and may be dropped due to excessive vibration due to an earthquake or the like.
Therefore, it is required to improve safety.

An object of the present invention is to provide a display device for an elevator which prevents the surface plate from coming off under a constant load, prevents theft due to mischief, and does not easily fall due to an earthquake or the like. .

[0010]

According to a first aspect of the present invention, there is provided a leaf spring which is provided on the back surface of the display plate and is inserted into the box when the display plate is attached to the box, and a bent portion provided on the leaf spring. , Engagement in the box for fitting with the bent part of the leaf spring, and engagement so that the frictional force when pulling out the display plate, which is provided on the bent part or the protrusion, is larger than the frictional force during insertion And a locking portion for locking.

As a result, when the bent portion and the protruding portion are fitted together, the bent portion or the locking portion provided on the protruding portion engages with the protruding portion or the bent portion, and the weight when removed becomes large. Makes it difficult to remove the face plate.

According to a second aspect of the present invention, in the first aspect of the invention, it is easy to fit the bent portion into the protrusion when the display plate is inserted, and it is difficult to separate the bent portion from the protrusion when the display plate is pulled out. As described above, the projection has a directivity. This makes it easy to attach the surface plate and makes it more difficult to remove it.

The invention of claim 3 is the invention of claim 1 or claim 2.
In the above invention, a plurality of protrusions are provided in the box. As a result, the bent portion is fitted with an appropriate protrusion to reduce the play between the face plate and the box.

The invention of claim 4 is the first to third aspects of the invention.
In the invention, the leaf springs are attached to the lower end portion of the back surface of the display plate and a predetermined lower position from the upper end portion of the back surface of the display plate, and the bent portion and the protruding portion of the leaf spring are disengaged from each other in the vertical direction. It is done by lifting it up and pulling it out.

As a result, the fitting between the bent portion provided on the leaf spring and the protruding portion provided inside the box is lifted up in the vertical direction and then removed to release the frictional force at the engaging portion at the time of removal. To do.

The invention of claim 5 is the first to fourth aspects of the invention.
In the invention described above, the protrusion is provided on the adjustment plate in the box. Thus, the protrusion provided inside the box is installed on the adjusting plate that is another element, and the position of the protrusion is adjusted by adjusting the mounting position of the adjusting plate to the box.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. 1 to 4 show a first embodiment of the present invention. FIG. 1 is a vertical sectional view of an elevator display device according to the first embodiment, and FIG. 2 is a horizontal sectional view thereof. In the first embodiment, as shown in FIG. 1, the bent portion 7 of the leaf spring 3 is provided with a locking portion 9, and as seen from FIG. 2, the bent portion of the leaf spring 3 is provided inside the box 2. 7 is provided with a protruding portion 8 that fits with 7.

As a result, when the bent portion 7 of the leaf spring 3 and the protruding portion 8 in the box 2 are fitted to each other, the engaging portion 9 provided on the bent portion 7 engages with the protruding portion 8 and the surface plate The weight at the time of removing 1 increases and makes it difficult to remove the surface plate 1.

FIG. 3 is a perspective view of the leaf spring 3 according to the first embodiment of the present invention. As can be seen from FIG. 3, the bent portion 7 of the leaf spring 3 is provided with a locking portion 9. The engaging portion 9 engages with the bent portion 8 so that the frictional force when the display plate 1 is pulled out is larger than the frictional force when the display plate 1 is inserted.
The locking portion 9 is formed as a hole or a notch groove, and FIG. 3 shows a case where a hole is used as the locking portion 9.

FIG. 4 is a partially cutaway sectional view of a portion where the bent portion 7 and the protruding portion 8 of the leaf spring 3 are fitted together. As can be seen from FIG. 4, when the front plate 1 is inserted into the box 2, the bent portion 7 of the leaf spring 3 and the protruding portion 8 are fitted to each other, and the locking portion provided in the bent portion 7 at that time. 9 is adapted to engage with the protrusion 8.

The shape of the projection 8 in the box 2 is a triangular shape in which the side of the entrance and exit of the box 2 is smooth and the side of the back of the box 2 is steep. Therefore, FIG.
As shown in FIG. 4, when the surface plate 1 is inserted, the bent portion 7 of the leaf spring 3 relatively easily overhangs the protrusion 7 of the box 2 and further pushes it so that the locking portion 9 of the leaf spring 3 is protruded.
Is engaged and fixed. On the contrary, when the surface plate 1 is detached from the box 2, as shown in FIG. 5B, the protrusion 8 of the box 2 is engaged with the engaging portion 9 of the leaf spring 3, and It will not come out unless a large amount of force is applied.

In this way, the projection 8 is provided with directivity,
When the display plate 1 is inserted, it is easy to fit the bent portion 7 into the protruding portion 8, and when the display plate 1 is pulled out, the protruding portion 8 of the bent portion 7 is inserted.
Making it difficult to leave. This makes it easy to attach the surface plate 1 and makes it more difficult to remove it. That is, the leaf spring 3
Since the locking portion 9 of the bent portion 7 and the protruding portion 8 of the box 2 are engaged with each other to prevent the front surface plate 1 from coming off under the same weight during insertion, it is possible to prevent theft or fall due to mischief. .

In the first embodiment, the shape of the projection 8 in the box 2 is triangular, but it may be square, trapezoidal or the like. That is, the same effect can be obtained as long as the bent portion 7 of the leaf spring 3 can be inserted relatively easily when the display plate 2 is inserted and the engaging portion 9 of the leaf spring 3 is engaged when the display plate 2 is pulled out.

Further, in the first embodiment, the box 2
Although the protrusion 8 is provided on the plate spring 3 and the locking portion 9 is provided on the leaf spring 3 for engagement, the same effect can be obtained by providing the locking portion 9 on the protrusion 8 of the box 2.

Next, FIG. 6 shows a second embodiment of the present invention. In the second embodiment, a plurality of protrusions 8 are provided in the box 2. FIG. 6 shows that three protrusions 8a, 8b and 8c are provided. As a result, the number of fixing points to be engaged in the box 2 increases, so that the bent portion 7 of the leaf spring 3 is fitted with an appropriate protrusion 8 to reduce the play between the surface plate 1 and the box 2. .

FIG. 7 shows a third embodiment of the present invention. In the third embodiment, the leaf spring 3 is attached to the lower end portion of the back surface of the display plate 1 and a predetermined lower position than the upper end portion of the back surface of the display plate 1, and the bent portion 7 and the protruding portion of the leaf spring 1 are attached. The fitting with 8 is removed by lifting the display plate 1 in the vertical direction and pulling it out.

As shown in FIG. 7, the engagement between the locking portion 9 (hole or notch groove) provided on the leaf spring and the projection 8 provided inside the box 2 is performed by the weight of the front plate 1. The engagement is released by lifting the display plate 1 in the vertical direction and then removing it.

As a result, the fitting between the bent portion 7 provided on the leaf spring 3 and the protruding portion 8 provided inside the box 2 is prevented from occurring.
Is lifted in the vertical direction and then removed to release the frictional force in the locking portion 9 at the time of removal.

Next, FIG. 8 shows a fourth embodiment of the present invention. In the fourth embodiment, an adjusting plate 10 is provided in the box 2 and the protrusion 8 is attached to the adjusting plate 10. As a result, since the protrusion 8 provided inside the box 2 is installed on the adjusting plate 10 which is another element, the protrusion 8 of the protrusion 8 can be adjusted by adjusting the mounting position of the adjusting plate 10 on the box 2. The position can be adjusted, and the mounting position of the surface plate 1 to the box 2 becomes appropriate.

[0030]

As described above, according to the present invention, the engaging portion is provided on the bent portion of the leaf spring or the protrusion in the box,
When the surface plate is inserted, the bent part of the leaf spring easily overhangs the projection part, and when it is disengaged, the locking part prevents it from coming off under the same load, so the surface plate may come off under a constant load. Absent. Therefore, it is possible to prevent theft due to mischief and provide an elevator display device that does not easily fall due to an earthquake or the like.

That is, according to the first aspect of the present invention, when the leaf spring provided at the predetermined position on the back side of the surface plate and the projection provided at the predetermined position inside the box are fitted, the locking portion is used. Since these are engaged, it is possible to make it difficult for the surface plate to come off.

According to the second aspect of the present invention, since the projections provided inside the box have directivity, the surface plate can be easily attached and can be more difficult to come off.

According to the third aspect of the present invention, since a plurality of protrusions are provided in the box to increase the number of places fitted with the bent portions of the leaf spring, the bent portion of the leaf spring has a plurality of protruding portions. Since it fits with the protrusion at an appropriate position, the play between the surface plate and the box can be reduced. This makes it possible to attach the display plate to an appropriate position and hold a predetermined load when pulling out the display plate.
It can prevent theft due to mischief and also prevent falling due to an earthquake.

According to the fourth aspect of the present invention, the engagement at the locking portion can be released by lifting the surface plate in the vertical direction and then removing it. Therefore, in a normal state, the display plate is less likely to be disengaged. It can be maintained and easily removed when it is removed.

According to the fifth aspect of the present invention, since the inner protrusion of the box is installed on the adjusting plate which is another element and the position of the protrusion can be freely adjusted, the display plate can be attached at an appropriate position. It will be possible. As a result, the predetermined load during pulling out can be maintained, so that theft due to mischief and the fall due to an earthquake or the like can be prevented.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a first embodiment of the present invention.

FIG. 3 is a perspective view of a leaf spring according to the first embodiment of the present invention.

FIG. 4 is a partially cutaway cross-sectional view for explaining a fitting portion between a bent portion and a protruding portion of a leaf spring.

FIG. 5 is an explanatory diagram of inserting and pulling out the display plate according to the first embodiment of the present invention, and FIG. 5 (a) is a description of the operation of the bent portion when the display plate is inserted into the box. Figure, Figure 5
(B) is an operation explanatory view when the display plate is pulled out from the box.

FIG. 6 is an explanatory diagram showing a second embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a third embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a fourth embodiment of the present invention.

FIG. 9 is a vertical cross-sectional view of a conventional example.

FIG. 10 is a cross-sectional view of a conventional example.

[Explanation of symbols]

1 surface plate Two boxes 3 leaf spring 4 Support plate 5 Volts 6 nuts 7 Bend 8 protrusions 9 Locking part 10 Adjustment plate

─────────────────────────────────────────────────── ─── Continuation of front page (72) Masami Sugawara, No. 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu factory, Toshiba Corporation (56) Reference JP 58-17075 (JP, A) 140114 (JP, U) Actual development Sho 64-46363 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B66B 3/00-3/02 F16B 2/00-2/26 F16B 5/00-5/12

Claims (5)

(57) [Claims] 1. A display device for an elevator, which is installed in a car of an elevator and around a doorway of a hall, and is configured so that a display plate for displaying the position and direction of the elevator is attached to a box, the back surface of the display plate. A leaf spring that is inserted into the box when the display plate is attached to the box, a bent portion provided in the leaf spring, and a bent portion of the leaf spring provided in the box. And a locking portion that is provided on the bent portion or the protrusion and that engages so that the frictional force at the time of pulling out the display plate is larger than the frictional force at the time of insertion. Elevator display device. 2. The insertion of the display plate facilitates the fitting of the bent portion into the protrusion, and the withdrawal of the display plate makes it difficult to separate the bent portion from the protrusion. The display device for an elevator according to claim 1, wherein the projection has a directivity. 3. The elevator display device according to claim 1, wherein the box is provided with a plurality of protrusions. 4. The leaf spring is attached to a lower end portion of the back surface of the display plate and a predetermined lower position than an upper end portion of the back surface of the display plate, and the bent portion of the leaf spring and the protruding portion are disengaged from each other. 4. The elevator display device according to claim 1, wherein the display is performed by lifting the display plate in a vertical direction and pulling it out. 5. The elevator display device according to claim 1, wherein the protrusion is provided on an adjustment plate in the box.