JPH0590548U - Display structure - Google Patents

Abstract

(57) [Summary] [Purpose] Prevents the ingress of water and dust and thus prevents rust and functional damage. [Constitution] The convex portion 1 of the protector 13 is provided on the display window 4a of the device.
3a is fitted and the display 12 is attached corresponding to the display window 4a. Reference numeral 20 is an elastic member in which a hole is provided in the center, a collar portion is formed around the hole, and an enclosing wall 22 is formed so as to project at the end edge of the inner peripheral surface of the hole. An elastic member is attached to the device by fitting a hole in the convex portion 13a so that the surrounding wall 22 is filled between the outer peripheral surface of the convex portion 13a and the inner peripheral surface of the display window 4a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of a display unit provided in various control devices and the like.

[0002]

[Prior Art]

 As a structure of this type of display unit, there is a conventional structure as shown in FIGS. To briefly explain this, the reference numeral 1 is a public telephone including a device body 2 and a vault 3. A coin insertion slot 5 is provided in the upper right corner of the front surface 4 of the device body 2, and a coin return slot 6 is provided in the lower part. Reference numeral 7 is a dial button, 8 is a display portion provided on the upper portion of the front surface portion 4 for displaying guidance such as dial operation, and 9 is a handset.

As shown in detail in FIG. 6, the display unit 8 is provided with an indicator 12 mounted on a printed circuit board 11 and a protector 13 which is semitransparent and has a rectangular convex portion 13a formed in the central portion. ing. A rectangular display window 4a is bored in the front surface portion 4, the convex portion 13a is fitted into the display window 4a, and the protector 13 and the printed circuit board 11 are arranged so that the display device 12 corresponds thereto. Are attached to the boss 14 provided on the back surface of the front surface portion 4 by screws 15.

[0004]

[Problems to be solved by the device]

 As described above, the structure of the conventional display unit is such that the convex portion 13a of the protector 13 is fitted into the display window 4a, and thus the waterproof structure or the dustproof structure is provided, so that the display window 4a and the convex portion are projected due to manufacturing errors. When a gap δ is formed between the portion 13a and the portion, water or dust may enter the inside of the device main body 2 or stay in the gap. For this reason, a failure may occur in the electronic circuit inside the device, the dust in the gap may harden, making it difficult to remove the protector 13, or the inner peripheral surface of the display window 4a may not be easily coated with paint. There was a problem that rust occurred.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and the purpose thereof is to prevent the intrusion of water and dust, thereby preventing the generation of rust and the functional failure. It is to provide the structure of the display unit.

[0006]

[Means for Solving the Problems]

 In order to achieve this object, the structure of the display unit according to the present invention is such that the display unit mounted inside the device corresponds to the display window formed in the device, and the display unit is covered with the display unit. And a protector attached to the device, and an elastic member having a hole in the center, a collar around the hole, and an enclosure wall protruding from the inner peripheral edge of the hole. The wall of the elastic member is filled between the inner edge of the display window and the outer peripheral surface of the protector, and the outer peripheral portion of the protector is fitted into the hole of the elastic member. Further, the structure of the display unit according to the present invention is such that the inner peripheral surface of the enclosure wall is a tapered surface that is divergent toward the inside of the device. In addition, the structure of the display unit according to the present invention is such that a second brim formed in parallel with the brim is provided at the tip of the surrounding wall.

[0007]

[Action]

 In the present invention, since the surrounding wall of the elastic member is filled between the inner edge of the display window and the outer peripheral surface of the protector, water and dust do not enter the inside of the device.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view of a structure of a display window according to the present invention, FIG. 2 is a perspective view showing the elastic member, and FIG. 2 (b) is a side sectional view. In these figures, the same components as those of the conventional technique are designated by the same reference numerals and detailed description thereof will be omitted. The feature of the present invention resides in that the elastic member 22 is filled between the protector 13 and the display window 4a of the front portion 4. That is, as shown in detail in FIG. 2, the elastic member 22 is provided with a rectangular hole 23 having a shape substantially the same as the outer shape of the convex portion 13a of the protector 13 in the central portion, and the hole 23 is provided around the hole 23. A collar 21 is formed, and a wall 22 that projects from the end surface of the inner peripheral surface of the hole 23 is formed.

Then, the surrounding wall 22 is filled between the outer peripheral surface of the convex portion 13a and the inner peripheral surface of the display window 4a, and the convex portion 13a of the protector 13 is fitted into the hole 23 to provide elasticity. The member 20 is attached to the device body 4. With such a configuration, the gap between the display window 4a and the convex portion 13a of the protector 13 is sealed by the surrounding wall 22, so that water and dust can be prevented from entering there. Further, since the collar 21 is provided, the sealed state becomes more complete, and the attachment to the device body 4 becomes stronger.

FIG. 3 is a side sectional view showing a second embodiment of the present invention. The feature of the second embodiment resides in that the inner peripheral surface 22a of the enclosure wall 22 is tapered toward the inside of the device body 4. With such a configuration, the convex portion 13a of the protector 13 can be smoothly fitted into the hole 23, and the manufacturing error in the fitted state can be absorbed by the taper surface.

FIG. 4 is a side sectional view showing a third embodiment of the present invention. The feature of the third embodiment is that a second flange 22b formed in equilibrium with the flange 21 is provided at the tip of the surrounding wall 22. With such a configuration, since the inner peripheral edge of the display window 4a is sandwiched by the two flanges 21 and 22b from above and below to be hermetically sealed, the hermetically sealed state can be made more complete. ..

[0012]

[Effect of the device]

 As described above, according to the present invention, a hole is provided in the center, a collar is provided around the hole, and an elastic member having an enclosure wall formed to project from the inner peripheral edge of the hole is provided. Since the surrounding wall of the elastic member is filled between the inner edge of the display window and the outer peripheral surface of the protector fitted to the display window, the outer peripheral portion of the protector is fitted into the hole of this elastic member to make a sealed state. In addition to preventing water and dust from entering the equipment, the inner peripheral surface of the display window is protected, and a fitting error between the protector and the display window due to manufacturing error can be absorbed.

[Brief description of drawings]

FIG. 1 is a side sectional view of a structure of a display unit according to the present invention.

2A and 2B show an elastic member in the structure of the display unit according to the present invention, FIG. 2A is an overall perspective view, and FIG. 2B is a side sectional view.

FIG. 3 is a side sectional view showing a second embodiment of the structure of the display unit according to the present invention.

FIG. 4 is a side sectional view of an elastic member showing a third embodiment of the structure of the display unit according to the present invention.

FIG. 5 is a front view of a public telephone adopting a conventional display unit structure.

6 is a sectional view taken along line VI-VI of FIG.

[Explanation of symbols]

 4a Display window 8 Display 12 Display 13 Protect 20 Elastic member 21 Tsuba 22 Enclosure wall 23 Hole

Claims (3)

[Scope of utility model registration request] 1. A display mounted inside a device corresponding to a display window formed in the device, a protector covering the display and fitted to the display window and mounted on the device, and a hole in the center. Is provided with a collar around the hole, and an elastic member having an enclosing wall projecting from the inner peripheral edge of the hole, and between the inner edge of the display window and the outer peripheral surface of the protector. By filling the surrounding wall of the elastic member,
A structure of a display unit, wherein an outer peripheral portion of the protector is fitted in a hole of the elastic member. 2. The structure of the display unit according to claim 1, wherein
A structure of a display unit, wherein an inner peripheral surface of the enclosure wall is a tapered surface which is widened toward the inside of the device. 3. The structure of the display unit according to claim 1, wherein
A structure of a display unit, wherein a second brim formed in parallel with the brim is provided at a tip of the surrounding wall.