JPH04197975A - Display device for elevator - Google Patents

Abstract

PURPOSE:To prevent certainly rise of a display plate by tightening screws to shift a display plate in one direction, and thereby bringing a plate spring into pressure contact with a contact part. CONSTITUTION:A case 4 is inserted into an installation hole 2, and the case 4 is fixed to the installation hole 2 via screws 5.... A display plate 10 is opposed to the front of the case 4 and support holes 15, 15 of a support plate 14 are inserted onto stepped protrusions 7, 7 of the case 4, so that display plate 10 is suspended. Accordingly, plate springs 26, 26 are located on the upper face of contact plates 25, 25. In this condition, screws 23, 23 are screwed into a tightening piece 10 through an end plate at the lower end of the case 4 from the outside. Along with this tightening, the display plate 10 moves downward and so the plate springs 26, 26 come in pressure contact with the contact plates 25, 25.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an elevator display device that displays, for example, the destination floor of a car, the direction of travel, and the like.

(Prior Art) The conventional structure of this type of display device is shown in FIGS. 6 to 8. In the figure, reference numeral 1 indicates the part to which the display device is attached, that is, the wall surface of the elevator car.A mounting hole 2 is formed in this wall surface 1, and a bending hole 2 is formed on both side edges of the mounting hole 2. A piece 3°3 is provided. A display device box 4 made of a steel plate or the like is inserted into the mounting hole 2 from the front side of the wall surface 1. Then, screws 5 are inserted from the inner surface of the box body 4 to the bent piece 3.3.
The box body 4 is fixed to the mounting hole 2 by tightening. A bracket 6 is attached to the inner upper part of the box body 4 by welding or the like, and a pair of stepped protrusions 7, 7 are provided on the front surface of the bracket 6 in parallel from side to side.

A display board 10 made of aluminum or the like is provided on the front surface of the box body 4, and flanges 11, 11 are integrally formed on both side edges of the display board 10 to be bent at a substantially right angle to the back side thereof. ing. Further, a pair of protrusions 12, 12 are integrally formed on the back surface of the display board 10 in parallel with each other in the longitudinal direction thereof. A support plate 14 is attached to the upper part of the back side of the display board 10 via screws 13.13 so as to span the protrusion 12.12 and extend in the left-right direction. Support holes 15.15 are bored in this support plate 14, and these support holes 15.15 are connected to the stepped projections 7.
It is inserted in 7. Further, plate springs 16.16 each curved in an arc shape are attached to the intermediate portions of the protrusions 12, 12 via screws 17.17, and these plate springs 16, 1
6 protrudes inside the box 4 and comes into elastic contact with the inner surface of the box 4, and the middle part of the display board 10 is locked to the box 4 by the frictional force caused by the contact.

Furthermore, the protrusion 12.
A mounting plate 21 is attached via screws 20 and 20 so as to extend along the horizontal direction across the mounting plate 12, and a fastening piece 22 is integrally attached to the lower edge of this mounting plate 21 so as to be bent at right angles inward. It is provided. Screws 23.23 are screwed from the lower end plate of the box 4 to the fastening piece 22, and the display board 10 is fixedly attached to the front surface of the wall 1 by tightening these screws 23.23.

In this mounting structure, the mounting screws 23, 23, etc. are not exposed to the outside, so that a good appearance can be maintained.

Although not shown, the display board 10 is provided with a display section that displays the destination floor of the car and the direction of travel, and the box body 4 houses light emitting elements for display, control parts, etc. It is.

To describe the procedure for mounting such a display device on the wall surface 1, first insert the box 4 into the mounting hole 2, and then insert the box 4 into the mounting hole 2.
is fixed to the mounting hole 2 via screws 5... After that, the display board 10 is placed facing the front of the box body 4, and the support board 14
The display board 10 is hung by inserting the support hole 15° 15 into the stepped protrusion 7.7 of the box body 4. Then, the display board 10 is pressed from the front side to bring the leaf springs 16, 16 into pressure contact with both inner side surfaces of the box body 4, and then the display board 10 is passed through the end plate at the lower end of the box body 4 from the outside. Attach the screw 23 to the fastening piece 22 of
, 23 and tighten. In response to this tightening, the display plate 10 shifts downward, and this shift causes the support holes 15, 1
5 and the stepped protrusions 7, 7 are firmly engaged, thereby fixing the display board 10 in a stable state.

(Problem to be Solved by the Invention) By the way, the mounting hole 2 is formed to be relatively larger than the outer shape of the box body 4 in order to facilitate insertion of the box body 4, and for this reason, it is difficult to tighten the screws 5... At this time, the side plate of the box body 4 expands outward, and as a result, the elastic contact force, that is, the frictional force between the side plate and the leaf spring 16 decreases, and the flange 1 of the display board 10
1 may not come into close contact with the wall surface 1 and may float up from the wall surface 1, creating a gap p, as shown in FIGS. 6 and 8.

If such a gap g occurs, it is very unsightly in terms of design, and if the display board 10 is pressed from the front, the flange 11
In order to avoid this, conventionally, before attaching the display board 1O to the box body 4, the leaf springs were removed each time at the installation site. There was a drawback that it required troublesome and troublesome effort to forcibly push and bend 16 outward.

Is it possible to press the leaf spring 16 against the inner surface of the box body 4 by such means? However, if the leaf spring 16 comes into pressure contact with the inner surface of the box body 4 in this way, maintenance and inspection will be required. When removing the display board 10 from the box body 4, the frictional force is large, making the task troublesome.

Furthermore, if the leaf spring 16 is in pressure contact with the inner surface of the box body 4,
When the display board 10 is moved downward by tightening the screws 23 and 23, the inner surface of the box body 4 is scraped and scratched by the side edges of the leaf springs 16, which has the disadvantage of causing corrosion. .

This invention was made with attention to these points, and its purpose is to reliably prevent the display board from lifting up at all times without having to make any modifications to the leaf springs at the installation site. To provide a display device for an elevator in which the display panel can be easily removed at all times, and damage to the box body caused by leaf springs can be avoided.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention fixes a box by inserting it into a mounting hole formed in the wall surface of the part to be mounted. A display board is arranged on the front of the body, and this display board is attached and fixed to a box body by tightening screws, and a leaf spring is attached to one of the display board and the box body, and a chain leaf spring and an elastic spring are attached to the other side. The display plate is provided with a contact portion that can be contacted with the user, and the display plate is moved in one direction by tightening the screw, so that the leaf spring is brought into pressure contact with the contact portion.

(Function) When the screws are tightened, the display board moves in one direction, and this action causes the leaf spring to press against the contact area, and the frictional force caused by this pressure prevents the display board from lifting up. When the display board shifts in one direction, the leaf spring only presses against the contact area and does not make any sliding contact with the box body members, thus preventing the box body from being damaged.
Furthermore, when the screws are loosened and removed, the display board moves in the opposite direction due to the elastic force of the leaf spring, reducing the frictional force between the leaf spring and the contact portion, thus making it easy to remove the display board. becomes possible.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4. Components that are the same as those shown in FIGS. 6 to 8 are designated by the same reference numerals, and their explanations will be omitted.

A first embodiment is shown in FIGS. 1 to 3, and a contact plate 25, 25 as a contact portion is provided in the middle part of both sides of the inside of the box body 4 so as to extend horizontally to the center side. installed. Further, in the middle part of the protrusion 12.12 of the display board 10, there are screws 27.27 and 27.
These leaf springs 26, 26 protrude to the rear side of the back surface of the display board 10 and come into elastic pressure contact with the upper surface of the contact plate 25.25, and the leaf springs 26, 2 due to this pressure contact
The flange 11.degree. 11 of the display panel 10 is held in close contact with the front surface of the wall surface 1 by the frictional force between the display panel 6 and the contact plate 25.degree.

Describing the procedure for attaching the display board 10 to the front of the wall surface 1, first insert the box body 4 into the mounting hole 2 in the same manner as described above,
This box body 4 is fixed to the mounting hole 2 via screws 5 . Then, the display board 10 is made to face the front surface of the box body 4, and the support holes 15.15 of the support plate 14 are inserted into the stepped protrusions 7.7 of the box body 4, so that the display board 10 is hung. As a result, the leaf springs 26, 26 are arranged on the upper surface side of the contact plate 25.25, and in this state, the screw 23 is passed from the outside of the end plate at the lower end of the box body 4 to the fastening piece 22 of the display plate 10. .2
Insert screw 3 and tighten. Along with this tightening, the display plate 10
moves downward, and the leaf springs 26, 26 touch the contact plate 25°2.
5.

In such a configuration, the side plate of the box body 4 has screws 5...
Even if the plate springs 26, 26 and the contact plate 25° 25 expand outward when tightened, the contact force between the plate springs 26, 26 and the contact plate 25° 25 will not be affected, and therefore, no modifications should be made to the plate springs 26, 26. Therefore, the frictional force between the leaf springs 26.26 and the contact plates 25.25 can always be kept at an appropriate level, and lifting of the display board 1o can be reliably prevented. When the display plate 1o shifts downward by tightening the screws 23 and 23, the leaf springs 26 and
26 does not come into any sliding contact with the box body 4, so there is no possibility that the box body 4 will be damaged.

On the other hand, when removing the display board 10 from the box body 4 for maintenance inspection or the like, the screws 23 and 23 are first removed. In response to this, the display board 10 moves upward due to the elastic force of the leaf springs 26.26, and this movement causes the contact plate 25 to
．． Il with 25! The frictional force is reduced and therefore the display board 10
can be easily removed from the front of the box body 4.

In the first embodiment described above, the screws 23 and 23 for mounting the display board 10 are not exposed to the outside, but in cases where the exposure of the screws is not a particular problem, It is also possible to adopt a configuration as shown in FIG. 4 as a second embodiment. That is, in this second embodiment, the display board 10 is formed in the shape of a relatively thick flat plate, and the display board 10 has through holes 30, 30 in the upper and lower parts thereof.
is formed, and a through hole 30 on the front side of the display board 10 is formed.
．． A tapered countersunk 31.31 is placed around the opening at the end of 30.
is applied. Further, a plate spring 26 which is curved in a substantially arc shape and protrudes rearward is attached to a substantially middle portion of the back surface of the display panel 10 via screws 27. Mounting plates 32.32 corresponding to the through holes 30.30 are attached to the upper and lower parts of the inside of the box body 4, and a contact plate 25 extending horizontally to the center side is attached to the middle part of the inner surface. installed. The through holes 30 and 30 are inserted into the mounting plates 32 and 32 from the front side of the display board 10.
Screws 34 and 34 having an outer diameter smaller than the inner diameter of 0 and 30 are inserted, and by tightening these screws 34 and 34, the display plate
is attached to the wall surface 1, and when the screws 34.34 are tightened, the heads 34a, 34a of these screws 34.34 or the tapered countersunk 31.31 are attached accordingly. To press fit and fit, countersunk 31.3
The display board 10 is pushed down by the inclined surface 1, and this pushing down brings the leaf spring 26 into pressure contact with the upper surface of the contact plate 25, and the frictional force prevents the display board 10 from floating up. Also in this configuration, the same effects as in the first embodiment can be achieved.

In the first and second embodiments, the contact plate 25 may be tilted toward the rear side of the display plate 10, as shown in FIG. The bite of the spring 26 is increased, and lifting of the display board 10 can be more reliably prevented.

Further, in each of the above embodiments, a leaf spring is provided on the display board, and a contact plate is provided on the box body with which the leaf spring comes into pressure contact.However, conversely, a contact plate is provided on the display board, and the box body Alternatively, instead of providing leaf springs at three locations in the width direction of the display board, one leaf spring or a plurality of leaf springs may be provided in the center of the display board. It is also possible to adopt a configuration. Further, the display device of the present invention is not limited to being provided on the wall of an elevator car, but may be provided on the wall of an elevator landing.

[Effects of the Invention] As explained above, according to the present invention, it is possible to avoid the troublesome and cumbersome work of making adjustments to the leaf springs at the installation site (it is possible to reliably prevent the display board from lifting up, and to make proper adjustments to the leaf springs). It has the advantage that it can be mounted in a fixed position, the display board can be easily removed, and the leaf springs do not damage the box body.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a display device according to a first embodiment of the present invention, FIG. 2 is a front view thereof, and FIG.
4 is a sectional view taken along the line, FIG. 4 is a sectional view of a display device according to a second embodiment of the present invention, FIG. 5 is a sectional view showing a configuration in which the contact plate that presses the leaf spring is inclined, and FIG. is a sectional view of a conventional display device, FIG. 7 is a front view thereof, and FIG. 8 is a sectional view taken along the line ■-■ in FIG. 1...Wall surface (mounted part), 2...Mounting hole, 4...
Box body, 10... Display board, 23... Screw, 25... Contact plate (contact part), 26... Leaf spring. Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 3 Figure 2 Figure 4 Figure 5 Figure 6 Figure 8 Figure 7

Claims (1)

[Claims] A box is inserted and fixed into a mounting hole formed on the wall of the part to be mounted, a display board is placed on the front of the box, and this display board is attached and fixed to the box by tightening screws,
A leaf spring is provided on one of the display board and the box body, and a contact portion capable of elastically contacting the leaf spring is provided on the other, and the display board is moved in one direction by tightening the screw, and the board is moved. An elevator display device comprising a spring pressed into contact with the contact portion.