JP2018123531A - Case structure of receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a case structure of a receiver which is provided with a simple drip-proof structure.SOLUTION: A case of a receiver 9 which is configured by a fitting engagement between a first case body 90 and a second body case 91, the first case body 90 having a first surface part 900 and a first upper surface part 901 formed at an upper end of the first surface part 900, the second case body 91 having a second surface part 910 and a second upper surface part (a first part 911 and a second part 912) formed at an upper end of the second surface part 910. Under the fitting engagement state, the first surface part 900 and the second surface part 910 are in opposition with each other, the first upper surface part 901 and the second upper surface part, which take upper and lower positions respectively, constitute a case upper surface part, an upper surface of the second surface part (the first part 911) has a downward slant surface that extends toward the second surface part 910, and an upper part of the slant surface is located at a lower position of the first upper surface part 901.SELECTED DRAWING: Figure 7

Description

The present invention relates to a case structure of a receiver. In a specific example, the present invention relates to a case structure of a receiver in an electric opening / closing body (typically, an electric shutter).

In the electric opening / closing body, the opening / closing control of the opening / closing body is performed by operating the driving means based on the signal received by the receiver. For example, in an electric shutter, opening / closing control of the shutter curtain is performed by operating the opening / closing device based on a signal received by the receiver.

Usually, a receiver in an electric shutter is arranged in a shutter case or a ceiling above a building opening. For example, as shown in FIG. 8, a receiver 9 ′ is disposed below the shutter case 3, and the receiver 9 ′ is located below the shutter curtain 1 wound around the winding shaft 4 in the shutter case 3. To position. Here, the shutter device is often installed in a building opening that divides the outdoor and indoor, and rainwater adhering to the outdoor side surface of the shutter curtain 1 when the building opening is fully closed is a shutter curtain when the building opening is opened. 1 may be dripped onto the receiver 9 ′ from the wound shutter curtain 1. Since the control board is built in the case of the receiver 9 ', it is necessary to prevent water drops (not limited to water dripping from the shutter curtain) from entering the case.

The case of the receiver 9 ′ shown in FIG. 8 is formed by fitting a first case body 90 ′ and a second case body 91 ′. As shown in an enlarged view in FIG. 9, the upper portion of the first case body 90 ′ includes an upper surface portion 901 ′ and an inner upper surface portion 906 ′, and is formed from the upper surface portion 901 ′ and the inner upper surface portion 906 ′. The upper surface portion 910 ′ of the second case body 91 ′ is inserted into the groove. A packing P is provided at the bottom of the groove of the first case body 90 ′, and the top edge of the upper surface portion 910 ′ of the second case body 91 ′ is in pressure contact with the packing P to form a sealed structure.

However, in the configuration in which the convex portion of the second case body 91 ′ is simply fitted into the concave portion on the first case body 90 ′ side, water easily accumulates in the fitting portion and water is easily drawn into the case due to a capillary phenomenon or the like. Moreover, since the first case body 90 'and the second case body 91' are detachably fitted and can be attached and detached as many times as necessary, a device for stabilizing the performance of the packing P is necessary. It becomes. Furthermore, using the packing P in addition to the first case body 90 'and the second case body 91' complicates the drip-proof structure and increases the cost.

Although the same subject is mentioned by patent document 1, in patent document 1, the solution of making the case of a receiving apparatus flat and providing a wiring board on the ceiling surface of an upper case body is provided. It cannot be employed in a drip-proof structure when a case formed by fitting one case body and a second case body is placed vertically.
JP-A-11-294045

  An object of the present invention is to provide a case structure of a receiver having a simple drip-proof structure.

The technical means adopted by the present invention are:
In the case of the receiver formed by fitting the first case body and the second case body,
The first case body includes a first surface portion extending in a height direction and a first upper surface portion formed at an upper end of the first surface portion,
The second case body includes a second surface portion extending in a height direction and a second upper surface portion formed at an upper end of the second surface portion,
In the fitted state of the first case body and the second case body, the first surface portion and the second surface portion face each other, and the first upper surface portion located on the upper side and the second upper surface portion located on the lower side. And the upper surface of the case is formed from
The upper surface of the second upper surface portion has an inclined surface that faces downward toward the second surface portion, and an upper portion of the inclined surface is positioned below the first upper surface portion.
It is the case structure of a receiver.

In one aspect, the upper surface of the first upper surface portion of the first case body has an inclined surface that faces downward toward the first surface portion.
In one aspect, a protrusion projecting upward is formed at the tip of the first upper surface portion of the first case body.

In one aspect, the first case body has an inner upper surface portion located below the first upper surface portion,
The second upper surface portion of the second case body includes a first portion having the inclined surface and a second portion integrally formed at a tip of the first portion, and the second portion is the inner upper surface. The tip of the second portion is in contact with the inner surface of the first surface portion.

  In the present invention, the upper surface portion of the case is formed from the first upper surface portion located on the upper side and the second upper surface portion located on the lower side, and the second upper surface portion is an inclined surface with the upper surface facing downward toward the second surface portion. Since the upper portion of the inclined surface is located below the first upper surface portion, the water droplets that have come around below the first upper surface portion are guided and discharged by the inclined surface. Therefore, it is difficult for the water droplets to be drawn into the lower part of the first upper surface portion, and the water droplets are prevented from entering the case as much as possible.

In the case where the upper surface of the first upper surface portion of the first case body has an inclined surface that faces downward toward the first surface portion, the water droplets dropped on the upper surface of the case are inclined to the inclined surface (upper surface of the first upper surface portion). Since it is guided to the first surface portion side along the inclined surface), or is guided to the second surface portion side along the inclined surface (lower inclined surface) of the second upper surface portion, it is dropped on the upper surface of the case It is possible to prevent water droplets from escaping to the first surface portion side or the second surface portion side and entering below the first upper surface portion as much as possible.
In the case where a protrusion projecting upward is formed at the tip of the first upper surface portion of the first case body, the protrusion functions as an element that regulates the movement of water droplets, and the tip of the first upper surface portion located on the upper side. Therefore, it is possible to prevent as much as possible water droplets from flowing into the lower portion of the first upper surface portion.

  In the drip-proof structure according to the present invention, since no additional element (sealing material such as packing) for the purpose of drip-proof is used, the cost is lower than in the case of using the additional element and the structure is simple.

It is a conceptual diagram of an electric shutter. It is a longitudinal cross-sectional view of the upper part of a building opening. FIG. 3 is a partially enlarged view of the receiver in FIG. 2. The upper view, the center view, and the lower view are a top view, a front view, and a bottom view of the receiver, respectively. The upper figure is an exploded perspective view of the receiver, and the lower figure is a perspective view of the receiver. It is a longitudinal cross-sectional view of a receiver. It is the elements on larger scale of the upper part of FIG. It is a longitudinal cross-sectional view of the upper part of the building opening part which shows the conventional receiver. It is the elements on larger scale which show the fitting state of the upper surface part of the 1st case body of the conventional receiver, and the upper surface part of a 2nd case body.

FIG. 1 is a conceptual diagram of an electric shutter device. The electric shutter is provided above and below a building opening, a shutter curtain 1 that opens and closes the building opening, left and right guide rails 2 provided on both sides of the building opening. A shutter case 3 as a shutter storage portion, a winding shaft 4 provided in the shutter case 3 and connected to the upper end of the shutter curtain 1 (see FIG. 2), and the winding shaft 4 is driven to rotate so as to rotate the shutter curtain. 1 is located at the upper part of the building opening (for example, the lintel), and the transmission is performed by the opening / closing machine 5 that opens and closes 1, the seat plate 6 provided at the lower end of the shutter curtain 1, the transmitter 7 provided on the seat plate 6. The light receiving unit 8 provided immediately above the machine 7, the receiver 9 provided in the shutter case 3, and the operation box 10 provided on the wall near the one guide rail 2 are provided.

As shown in FIG. 2, the shutter case 3 is attached so as to be brought out from the outer wall W, and both ends in the length direction of the winding shaft 4 are supported between the left and right brackets 11 attached so as to be brought out from the outer wall W. Has been. On the lower surface of the shutter case 3, the lintels 12 and 13 are provided between the upper ends of the left and right guide rails 2, and an opening through which the shutter curtain 1 passes is formed between the lintels 12 and 13. . An attachment piece 14 is provided on the lower surface 30 of the shutter case 3 in the vicinity of the lintel portion 12. The mounting piece 14 has an L shape in sectional view from the horizontal side 140 and the vertical side 141, the horizontal side 140 abuts on the lower surface 30 of the shutter case 3, and the vertical side 141 is perpendicular to the lower surface 30 of the shutter case 3. The receiver 9 is fixed to the vertical side 141 with a screw 142. The shape and arrangement of the mounting piece 14 are not limited to the illustrated embodiment, and are matters that can be appropriately designed by those skilled in the art.

The seat plate 6 includes an upper seat plate 60, a movable lower seat plate 61 movable up and down with respect to the upper seat plate 60, and a detection unit 62 provided between the upper seat plate 60 and the lower seat plate 61. Configure the switch. The seat plate switch is in an OFF state in a normal state (a state in which the lower seat plate 61 is freely suspended from the upper seat plate 60), and the lower seat plate 61 is moved upward relative to the upper seat plate 60. When the detection lever of the detection unit 62 rotates to change from the OFF state to the ON state, and the lower seat plate 61 in the upward movement position with respect to the upper seat plate 60 moves down and enters the suspended state, the detection lever of the detection unit 62 Is rotated so as to return to the normal posture, and is changed from the ON state to the OFF state. Such seat plate switches are well known to those skilled in the art and will not be described in further detail.

The transmitter 7 transmits a wireless ON signal when the seat plate switch changes from the OFF state to the ON state, and transmits a wireless OFF signal when the seat plate switch changes from the ON state to the OFF state. In the present embodiment, the transmitter 7 includes a light transmission unit that transmits an infrared ON signal and an infrared OFF signal. Note that the type of radio signal applied to the present invention is not limited to an infrared signal, and may be, for example, an RF signal or a signal in another wavelength band.

A light receiving portion 8 (not shown in FIG. 2) is provided in the lintel above the building opening, and the wireless ON signal and the wireless OFF signal transmitted from the transmitter 7 are received by the light receiving portion 8. . A receiver 9 is provided below the shutter case 3 in the vicinity of the lintel 12, and the receiver 9 includes a shutter curtain 1 wound around the winding shaft 4 within the shutter case 3. Located below. The light receiving unit 8 and the receiver 9 are electrically connected, and an ON signal or an OFF signal received by the light receiving unit 8 is transmitted to the receiver 9. In this embodiment, the light receiving unit 8 and the receiver 9 are physically separated from each other. However, if the light receiving unit is configured to reliably receive an ON signal or an OFF signal, the light receiving unit is an integrated receiver. May be. Further, depending on the type of radio signal, only the receiver may be used.

The receiver 9 includes a case in which the first case body 90 and the second case body 91 are detachably fitted, and a control board 92 (see the lower diagram in FIG. 4) provided in the first case body 91. Equipped and arranged in a vertical position. The control board 92 of the receiver 9 is electrically connected to the control panel 50, the light receiving unit 8, and the operation box 10 of the switch 5, and the control board (first control unit) 92 and the control panel of the switch 5 ( The second controller 50 is a shutter opening / closing controller. In this embodiment, the shutter opening / closing control unit includes a first control unit and a second control unit that are physically separated from each other, but the shutter opening / closing control unit may be formed from one control unit.

The operation box 10 is provided with an ascending button PBU, a stop button PBS, and a descending button PBD as operation switches. When the operator presses the ascending button PBU, the ascending signal is controlled by the control board 92 via the control board 92. When the winding shaft 4 is rotated in the first direction by the opening / closing device 5 to raise the shutter curtain 1 and press the lowering button PBD, the lowering signal is transmitted via the control board 92 to the opening / closing device 5. When the winding shaft 4 is rotated in the second direction by the opening / closing machine 5 to lower the shutter curtain 1 and press the stop button PBS, the stop signal is opened / closed via the control board 92. Is transmitted to the control panel 50 of the machine 5, the rotation drive of the switch 5 is stopped, the rotating winding shaft 4 is stopped, and the moving shutter curtain 1 is stopped.

As shown in FIGS. 3 to 6, the first case body 90 that forms one half of the case of the receiver 9 is formed on the first surface portion 900 having a horizontal rectangular shape and the upper end of the first surface portion 900. A first upper surface portion 901, a protrusion 902 protruding from the tip of the first upper surface portion 901, a first lower surface portion 903 formed near the lower end of the first surface portion 900, and both ends in the width direction of the first surface portion 900 A first side surface portion 904 formed on the first surface portion 900, and an attachment side 905 extending beyond the side surface portion 904 from both ends in the width direction of the first surface portion 900. A first fitting portion 9040 is formed on each first side surface portion 904. Each attachment side 905 is formed with attachment holes 9050 with a space in the vertical direction.

On the inner surface of the first surface portion 900 of the first case body 90, an inner upper surface portion 906 and left and right inner side surface portions 907 are formed inside the first upper surface portion 901 and the left and right first side surface portions 904. A quadruple inner wall is formed from the inner upper surface portion 906, the left and right inner side surface portions 907, and the first lower surface portion 903, and the control board 92 (see the lower diagram in FIG. 4) is formed in the region surrounded by the inner wall. , FIG. 5 and FIG. 6 are provided.

The second case body 91 that forms the other half of the case of the receiver 9 includes a second surface portion 910 having a horizontal rectangular shape, and a second upper surface portion (first portion 911 and the second surface portion 910) formed at the upper end of the second surface portion 910. A second portion 912 formed integrally with the tip of the first portion 911), a second lower surface portion 913 formed at the lower end of the second surface portion 910, and both ends in the width direction of the second surface portion 910. A second side surface portion 914. A second fitting portion 9140 is formed on each second side surface portion 914.

The case of the receiver 9 is formed by fitting the second case body 91 to the first case body 90. The receiver 9 is attached to the attachment piece 14 with the case placed vertically (vertical posture). In the embodiment shown in FIG. 3, the mounting side 905 is fixed to the vertical side 141 of the mounting piece 14 using the screw 142, but a shaft portion (from the shaft portion of the screw 142) that protrudes horizontally from the vertical side 141. The attachment side 905 may be hooked on the vertical side 141 by locking the attachment hole 9050 to the other, and the attachment configuration of the receiver 9 is not limited.

In a state where the receiver 9 is attached to the attachment piece 14, the first surface portion 900 of the first case body 90 is a vertical surface (see FIG. 3). In the present embodiment, the upper surface of the first upper surface portion 901 of the first case body 90 is an inclined surface that is gently inclined downward from the distal end toward the base end (the surface portion 900 side). The inner upper surface portion 906 extends horizontally, and the upper surface thereof is a horizontal plane. The left and right first side surface portions 904 extend vertically, and the lower surface portion 903 extends horizontally.

In a state where the receiver 9 is attached to the attachment piece 14, the second surface portion 910 of the second case body 91 is a vertical surface (see FIG. 3). The first portion 911 of the second upper surface portion of the second case body 91 extends upwardly from the proximal end (second surface portion 910 side) toward the distal end, and the upper surface of the first portion 911 extends from the distal end to the proximal end. The inclined surface is inclined downward toward the (surface portion 910 side). The 2nd site | part 912 of the 2nd upper surface part of the 2nd case body 91 is extended horizontally, and the upper surface and lower surface of the 2nd site | part 912 are horizontal surfaces. Note that the upper surface of the second portion 912 may be an inclined surface that is inclined downward from the distal end toward the base end (the first portion 911 side). The left and right second side surface portions 914 extend vertically, and the lower surface portion 913 extends horizontally.

In the fitted state of the first case body 90 and the second case body 91, the first surface portion 900 of the first case body 90 forms one vertical surface portion of the case, and the second surface portion 910 of the second case body 91. Forms the other vertical surface portion of the case, and the first upper surface portion 901 of the first case body 90 and the second upper surface portion (first portion 911, second portion 912) of the second case body 91 are the upper surface of the case. The first side surface portion 904 of the first case body 90 and the second side surface portion 914 of the second case body 91 form the side surface portion of the case, and the second lower surface portion 913 of the second case body 91 is the case. Forming the lower surface of the substrate.

A second portion 912 of the second upper surface portion of the second case body 91, and a left and right second side surface portion 914 on the inner wall (inner upper surface portion 906, left and right inner side surface portions 907, lower surface portion 903) of the first case body 90. The first case body 90 and the second case body 91 are fitted together by being mounted so as to cover the second lower surface portion 913. In the fitted state, the second portion 912 of the second upper surface portion of the second case body 91, the left and right second side surface portions 914, and the inner surface of the second lower surface portion 913 are the inner upper surface portion 906 of the first case body 90, The left and right inner side surface portions 907 and the outer surfaces of the first lower surface portion 903 come into contact with the second upper surface portion (second portion 912) of the second case body 91, the left and right second side surface portions 914, and the second lower surface portion 913. The leading edge is in contact with the inner surface of the first surface portion 900 of the first case body 90.

In the fitted state, the first upper surface portion 901 of the first case body 90 is located above the portions of the second portion 912 and the first portion 911 of the second upper surface portion of the second case body 91. The left and right first side surface portions 904 of the first case body 90 are positioned outside the left and right second side surface portions 914 of the second case body 91, and the first side surface portions 904 of the first case body 90 The second fitting portion 9140 of the second side surface portion 914 of the second case body 91 is fitted to the first fitting portion 9040. By fitting the first fitting portion 9040 and the second fitting portion 9140, the fitting state of the first case body 90 and the second case body 91 is maintained.

The upper structure of the case of the receiver 9 will be described in detail with reference to FIG. In the upper structure of the case, when the first case body 90 and the second case body 91 are in the fitted state, the first surface portion 900 and the second surface portion 910 are opposed to each other, and the first upper surface portion 901 located on the upper side and the lower side. The upper surface part of the case is formed from the second upper surface part (first part 911, second part 912) located.

In the first case body 90, the lower surface of the first upper surface portion 901 and the upper surface of the inner upper surface portion 906 are separated from each other, and the lower surface of the first upper surface portion 901, the upper surface of the inner upper surface portion 906, and the inner surface of the first surface portion 900. A laterally recessed portion is formed from the upper end portion. The rising dimension of the first upper surface part 901 with respect to the first surface part 900 is larger than the rising dimension of the inner upper surface part 906 with respect to the first surface part 900, and the inner upper surface part 906 is below the tip side portion of the first upper surface part 901. Does not extend. In a state where the second case body 91 is fitted to the first case body 90, the second upper surface portion of the second case body 91 is inserted into the recess of the first case body 90. More specifically, the second portion 912 of the second upper surface portion of the second case body 91 contacts the inner upper surface portion 906 of the first case body 90, and the leading edge of the second portion 912 is the first case body 90. Is in contact with the inner surface of the surface portion 900. Below the first upper surface portion 901 of the first case body 90, the second portion 912 of the second upper surface portion of the second case body 91 and the upper portion of the inclined first portion 911 are located. A space is formed between the lower surface of the first upper surface portion 901 of the first case body 90 and the upper surface of the second portion 912 of the second upper surface portion of the second case body 91 and the upper portion of the inclined first portion 911. Has been.

The upper surface of the first upper surface portion 901 of the first case body 90 is an inclined surface that gently slopes downward from the distal end toward the base end (first surface portion 900), and the distal end of the upper surface of the first upper surface portion 901 Is formed with a protrusion 902 extending along the tip. In the case upper surface portion, the water droplet dropped on the upper surface of the upper first upper surface portion 901 is guided to the first surface portion 900 side along the inclined surface. Since an upward protrusion 902 is formed at the tip of the first upper surface portion 901, the protrusion 902 functions as an element that restricts the movement of the water droplet, and the water droplet wraps downward from the tip of the first upper surface portion 901. To prevent this as much as possible.

The upper surface of the second upper surface portion of the second case body 91 is composed of an inclined upper surface of the first portion 911 inclined downward toward the second surface portion 910 and a horizontal upper surface of the horizontal second portion 912. The upper part of the second part 912 and the inclined first part 911 is covered by the first upper surface part 901 of the first case body 90, but is inclined downward toward the second surface part 910 of the first part 911. The upper surface of the other part of is exposed. The water droplets dropped on the inclined surface where the first part 911 is exposed are guided to the second surface portion 910 side along the inclined surface. The upper part of the inclined first part 911 of the second upper surface part is located below the first upper surface part 901, and the water droplets that wrap around the lower side of the first upper surface part 901 of the first case body 90 are It is guided to the second surface portion 910 side along the inclined surface of the first portion 911.

9 Receiver 90 1st case body 900 1st surface part 901 1st upper surface part 902 Protrusion 91 2nd case body 910 2nd surface part 911 1st site | part 912 of 2nd upper surface part 912 2nd site | part of 2nd upper surface part

Claims (4)

In the case of the receiver formed by fitting the first case body and the second case body,
The first case body includes a first surface portion extending in a height direction and a first upper surface portion formed at an upper end of the first surface portion,
The second case body includes a second surface portion extending in a height direction and a second upper surface portion formed at an upper end of the second surface portion,
In the fitted state of the first case body and the second case body, the first surface portion and the second surface portion face each other, and the first upper surface portion located on the upper side and the second upper surface portion located on the lower side. And the upper surface of the case is formed from
The upper surface of the second upper surface portion has an inclined surface that faces downward toward the second surface portion, and an upper portion of the inclined surface is positioned below the first upper surface portion.
Receiver case structure.   The case structure of the receiver according to claim 1, wherein an upper surface of the first upper surface portion of the first case body has an inclined surface that faces downward toward the first surface portion. A protrusion projecting upward is formed at the tip of the first upper surface portion of the first case body.
The case according to any one of claims 1 and 2. In the first case body, an inner upper surface portion is formed below the first upper surface portion,
The second upper surface portion of the second case body includes a first portion having the inclined surface and a second portion integrally formed at a tip of the first portion, and the second portion is the inner upper surface. The tip of the second part is in contact with the inner surface of the first surface part,
The case according to any one of claims 1 to 3.

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