JP7653926B2 - Remote control device - Google Patents

Description

The present invention relates to the technical field of remote control devices that remotely control external devices.

There are remote control devices that perform remote control via radio waves, etc., and remote control devices are frequently used to operate various external devices, such as external equipment for agricultural work and model cars.

In such remote control devices, the desired operation can be performed by operating a switch mounted on a board (circuit board) using an operating unit. Since such remote control devices are often used outdoors, some remote control devices are provided with a waterproof structure for the switches, etc. (see, for example, Patent Document 1 and Patent Document 2).

In particular, when the remote control device is a type that controls external equipment for agricultural work, the remote control device is often used in a moist environment, and the switches and other parts of the remote control device need to be highly waterproof.

In the remote control device described in Patent Document 1, an opening in which part of a switch is placed is formed in the housing, the opening is closed by a waterproof elastic member, and an operating unit held by a panel positioned on the opposite side of the housing across the elastic member can be operated by pressing the switch via the elastic member (see FIG. 1 of Patent Document 1, etc.). The panel is fixed to the housing by a mounting screw inserted through the elastic member.

In the remote control device described in Patent Document 2, a secondary battery is placed in the internal space formed by the device body and the battery cover, a circuit board with a switch mounted thereon is placed on the outer surface of the device body, and the circuit board and device body are covered with a waterproof elastic member (see FIG. 1 of Patent Document 2, etc.). A number of operating units held by a cover member are placed on the outer surface of the elastic member, and the operating units can be operated by pressing the switches via the elastic member.

Japanese Unexamined Patent Publication No. 8-129925 JP 2017-10712 A

However, in the remote control device described in Patent Document 1, the panel is fixed to the housing with the mounting screw inserted through the elastic member, and there is a risk that moisture may get into the switch side through the part of the elastic member through which the mounting screw is inserted, making it difficult to ensure sufficient waterproofing.

In addition, in the remote control device described in Patent Document 2, the board on which the switch is mounted is configured to be located on the outer surface of the device body, so the device body does not provide waterproofing for the switches, etc., and the waterproofing is inferior to a configuration in which the board is located inside the device body.

On the other hand, as mentioned above, remote control devices are used to operate various types of external devices, so if one remote control device is configured to be able to be used to operate multiple types of external devices, it will be possible to increase versatility and improve convenience.

The objective of the remote control device of the present invention is to ensure high waterproof performance while allowing it to be operated with multiple types of external devices.

The remote control device according to the present invention comprises a case body in which a switch is arranged in the internal space and in which a communication hole that communicates with the internal space is formed, a key top having an operating unit that is detachable from the case body, and an elastically deformable waterproof plate that is arranged between the key top and the case body and closes the communication hole.

As a result, the communication hole is blocked by the elastically deformable waterproof plate that exists between the key top having the operating part and the case body in which the switch is arranged in the internal space, and the key top can be replaced with respect to the case body.

According to the present invention, the communication hole is blocked by an elastically deformable waterproof plate that exists between the key top having the operating part and the case body in which the switch is arranged in the internal space, and the key top is made replaceable with respect to the case body, so that it is possible to operate multiple types of external devices while ensuring high waterproof performance.

2 to 11 show an embodiment of a remote control device of the present invention, and this figure is a perspective view showing the remote control device. FIG. 2 is an exploded perspective view of the remote control device. 3 is an exploded perspective view showing the remote control device as viewed from the opposite direction to that shown in FIG. 2. FIG. 2 is an exploded perspective view showing a case body, a substrate, etc. 5 is an exploded perspective view showing the case body, the substrate, etc., as viewed from the opposite direction to that of FIG. 4. FIG. 2 is an exploded perspective view showing the key tops, the waterproof plate, and the upper case. 7 is an exploded perspective view showing the key top, the waterproof plate, and the upper case as viewed from the opposite direction to that of FIG. 6. 1 is a perspective view showing a waterproof plate disposed on a case body and a key top separated from the case body; A cross-sectional view showing the positional relationship between the operating shaft, water barrier plate, stem, and switch. 11 is a cross-sectional view showing a state in which a gap is formed between a key top and an upper case. FIG. 11 is a cross-sectional view showing a state in which a tool is inserted into the gap and the key top is removed from the case body. FIG.

Below, the embodiment of the remote control device of the present invention will be described with reference to the attached drawings.

The remote control device has a case body with a circuit board disposed in the internal space, and key tops that are detachable from the case body, and is shaped so that the direction perpendicular to the direction in which the key tops are attached to and detached from the case body is the longitudinal direction. When directions are indicated below, the direction in which the key tops are attached to and detached from the case body is referred to as the up-down direction, and the longitudinal direction is referred to as the front-rear direction. However, the directions indicated below are for the convenience of explanation, and the implementation of the present invention is not limited to these directions.

<Configuration of remote control device>
First, the configuration of a remote control device 1 will be described (see FIGS. 1 to 10).

The remote control device 1 has a case body 2 and key tops 3.

The case body 2 is made up of an upper case 4 formed in a thin shape and a bottom case 5 formed in a shallow box shape with an opening at the top, which are joined in the vertical direction, and is formed in a shape in which the longitudinal direction is the front-to-rear direction. An internal space 2a is formed in the case body 2 by the upper case 4 and the bottom case 5.

The upper case 4 has an outer shape that is roughly rectangular and vertically long, and has a base surface portion 6 that faces the vertical direction, an outer wall portion 7 that protrudes upward from the outer periphery of the base surface portion 6, and a partition wall portion 8 that protrudes upward from the base surface portion 6 inside the outer wall portion 7.

The partition wall 8 is made up of inclined sections 9, 9 connected to both the left and right ends of the front end of the outer wall 7, opposing sections 10, 10 connected to the rear ends of the inclined sections 9, 9 and extending forward and backward, and a connecting section 11 whose both left and right ends are connected to the rear ends of the opposing sections 10, 10. The inclined sections 9, 9 are inclined so that they approach each other as they move rearward. The inner peripheral surface of the partition wall 8 is formed as an inner wall surface 8a, and the outer peripheral surface is formed as an outer wall surface 8b.

The upper case 4 has connecting pins 4a, 4a, ... that protrude downward from the outer periphery of the base surface portion 6 and are spaced apart in the circumferential direction. The upper case 4 has insertion pins 4b, 4b that protrude downward from the base surface portion 6 and are spaced apart on the left and right.

The base surface portion 6 has operation holes 6a, 6a, ... formed on the left and right of the opposing portions 10, 10, spaced apart in the front-rear direction. The base surface portion 6 has first mounting holes 6b, 6b, ... formed between the opposing portions 10, 10, spaced apart in the front-rear direction. The base surface portion 6 has second mounting holes 6c, 6c, ... and insertion mounting holes 6d, 6d, ... formed between the outer wall portion 7 and the opposing portions 10, 10, spaced apart in the front-rear direction. A roughly rectangular panel arrangement hole 6e is formed in the front end portion of the base surface portion 6.

A portion of the circumferential surface of the first mounting hole 6b and the second mounting hole 6c protrudes inward, and these protruding portions are formed as coupling protrusions 6f, 6f. The coupling protrusions 6f are formed at the upper ends of the first mounting hole 6b and the second mounting hole 6c.

The operation hole 6a, the first mounting hole 6b, the second mounting hole 6c, and the insertion mounting hole 6d formed in the base surface portion 6 are communication holes that communicate with the internal space 2a of the case body 2.

First engagement holes 12, 12, ... are formed at the lower end of the inner surface side of the opposing parts 10, 10, spaced apart in the circumferential direction (see Figures 4 and 6). In addition, first engagement holes 12, 12, ... are also formed at the front end of the inner surface side of the outer wall part 7, spaced apart on the left and right.

Second engagement holes 13, 13, ... are formed at the lower end on the outer surface side of the inclined parts 9, 9, the lower end on the outer surface side of the facing parts 10, 10, and the lower end on the outer surface side of the connecting part 11. The second engagement holes 13, 13, ... formed in the facing parts 10, 10 are positioned at a distance from each other in the front and rear. The first engagement holes 12, 12, ... and the second engagement holes 13, 13, ... may be connected to the internal space 2a of the case body 2. In addition, the first engagement holes 12, 12, ... and the second engagement holes 13, 13, ... formed at back-to-back positions across the facing parts 10, 10 may be formed as a single communication hole, or may be formed independently.

The bottom case 5 has a bottom surface portion 14 that faces approximately vertically and a peripheral surface portion 15 that protrudes upward from the outer periphery of the bottom surface portion 14.

The bottom case 5 is provided with a number of mounting shafts 16 that protrude upward from the bottom surface 14. The mounting shafts 16 are provided as insertion sections 16a whose upper ends have a smaller diameter than the diameter of the remaining parts. The bottom surface 14 is formed with an acoustic output hole (not shown).

The peripheral surface portion 15 has multiple connecting holes 15a that open upward and are spaced apart in the circumferential direction.

The key top 3 is composed of a first member 17 and a second member 18. The first member 17 and the second member 18 are formed of an elastically deformable material such as an elastomer, except for the operating shaft, which will be described later.

The first member 17 is formed in a shape that extends in the front-rear direction, with the portion other than the front end provided as a narrow portion 19 of a generally rectangular shape, and the front end provided as a wide portion 20 that becomes wider as it moves forward from the narrow portion 19. The first member 17 is provided with operating portions 21, 21, ... that protrude upward. The first member 17 has first engagement claws 22, 22, ... that protrude outward and are spaced apart in the circumferential direction at the lower end of the outer circumferential surface of the first member 17.

The first member 17 is formed with recesses 17a, 17a, ... that open downward, and the recesses 17a, 17a, ... are positioned corresponding to the operation units 21, 21, ..., respectively. The first member 17 is provided with operation shafts 23, 23, ... that protrude downward in the recesses 17a, 17a, ..., respectively. The operation shafts 23 protrude downward from the center of the operation units 21.

When the operating unit 21 is pressed, the operating unit 21 is elastically deformed and the operating shaft 23 moves downward along with the operating unit 21, and when the pressing operation on the operating unit 21 is released, the operating unit 21 elastically returns to its original position and the operating shaft 23 moves upward along with the operating unit 21.

The first member 17 is provided with first mounting pins 24, 24, ... that protrude downward at a position in the narrow portion 19 where the recess 17a is not formed. A ring-shaped coupling groove 24a is formed near the lower end of the first mounting pin 24.

The first member 17 is provided with a main body 25 other than the operating shafts 23, 23, ..., and the operating shafts 23, 23, ... are each detachable from the main body 25.

In the first member 17, the main body 25 and the operating shaft 23 may be formed integrally. In this case, it is preferable that the main body 25 is formed from a rubber material such as an elastically deformable elastomer, and the operating shaft 23 is formed from a resin material or a metal material to ensure a certain level of rigidity. The formation of the first member 17 from such different materials can be performed by insert molding.

Predetermined portions of the outer peripheral surface of the first member 17 are slightly recessed or slightly protruding from other portions, and these portions are formed as planar opposing surfaces 17b, 17b, .... The opposing surfaces 17b are located, for example, above the first engaging claw 22 or in the vicinity of the first engaging claw 22.

The upper end of the outer peripheral surface of the first member 17 is provided with a concealment protrusion 17c that protrudes outward (see FIG. 10). The concealment protrusion 17c is provided on a portion of the first member 17 other than the front end. A cover arrangement hole 20a is formed in the front end of the wide portion 20 of the first member 17.

The second member 18 is formed in a generally U-shape that opens forward, and has sides 26, 26 extending in the front-rear direction and a base 27 provided between the rear ends of the sides 26, 26. The second member 18 is provided with operating parts 28, 28, ... that protrude upward. Second engagement claws 29, 29, ... that protrude inward are provided at a distance in the circumferential direction at the lower end of the inner peripheral surface of the second member 18.

The second member 18 is formed with recesses 18a, 18a, ... that are open downward, and the recesses 18a, 18a, ... are positioned corresponding to the operating parts 28, 28, ..., respectively. The second member 18 is provided with operating shafts 30, 30, ... that protrude downward in the recesses 18a, 18a, ..., respectively. The operating shafts 30 protrude downward from the center of the operating parts 28.

When the operating unit 28 is pressed, the operating unit 28 is elastically deformed and the operating shaft 30 moves downward along with the operating unit 28, and when the pressing operation on the operating unit 28 is released, the operating unit 28 elastically returns to its original position and the operating shaft 30 moves upward along with the operating unit 28.

The second member 18 is provided with second mounting pins 31, 31, ... that protrude downward at positions on the side portions 26, 26 where the recesses 18a are not formed. An annular coupling groove 31a is formed near the lower end of the second mounting pin 31.

The second member 18 is provided with a main body 32 other than the operating shafts 30, 30, ..., and the operating shafts 30, 30, ... are each detachable from the main body 32.

In addition, in the second member 18, the main body 32 and the operating shafts 30, 30, ... may be formed integrally. In this case, it is preferable that the main body 32 is formed from a rubber material such as an elastically deformable elastomer, and the operating shafts 30, 30, ... are formed from a resin material or a metal material to ensure a certain level of rigidity, and the second member 18 can be formed from such different materials by insert molding.

Predetermined portions of the outer peripheral surface of the second member 18 are positioned slightly closer to the recess 18a than other portions, making them recessed or slightly protruding, and these portions are formed as planar opposing surfaces 18b, 18b, .... The opposing surfaces 18b are positioned, for example, above the second engaging claw 29 or in the vicinity of the second engaging claw 29.

The upper end of the circumferential surface of the second member 18 is provided with a concealment protrusion 18c that protrudes outward. The concealment protrusion 18c is provided on the second member 18 except for the left and right ends and the rear end.

A substrate 33 is disposed in the internal space 2a formed in the case body 2. The substrate 33 is formed in a generally vertically long rectangular shape. Switches 34, 34, ... that are operated by pressing from above are mounted on the upper surface of the substrate 33 at intervals in the front-rear and left-right directions. Shaft insertion holes 33a, 33a, ... are formed in the substrate 33 at intervals in the front-rear and left-right directions.

A terminal (not shown) such as a Universal Serial Bus (USB) is mounted on the rear end of the upper surface of the substrate 33. When the substrate 33 is placed in the internal space 2a, the terminal is placed in a terminal placement hole (not shown) formed in the rear end of the bottom case 5, allowing a cable such as a signal line to be connected to the terminal from the outside. A speaker (not shown) may also be placed on the underside of the substrate 33. Sound output from the speaker is output to the outside from an audio output hole formed in the bottom surface portion 14 of the bottom case 5.

A panel holder 35 is attached to the front end of the upper surface of the substrate 33, and a display panel 36 is held on the upper surface side of the panel holder 35. With the substrate 33 placed in the internal space 2a, the display panel 36 is placed in the panel placement hole 6e of the upper case 4, making the images and videos displayed on the display panel 36 visible from the outside. A panel cover 37 made of a transparent material is placed on the upper surface of the display panel 36, and the display panel 36 is protected by the panel cover 37.

The substrate 33 is attached in a positioned state to the bottom case 5 by inserting the insertion portions 16a, 16a, ... of the mounting shafts 16, 16, ... into the shaft insertion holes 33a, 33a, ... from below. Note that a cushion (not shown) may be placed between the substrate 33 and the bottom surface portion 14 of the bottom case 5 to protect the substrate 33.

A stem 38 is attached to the substrate 33 from above. The stem 38 is formed of an elastically deformable material such as a rubber material, and has a cover base portion 39 facing in the vertical direction, switch cover portions 40, 40, ... each protruding upward from the cover base portion 39, and insertion protrusions 41, 41, ... each protruding upward from the outer periphery of the cover base portion 39.

Pin insertion holes 39a, 39a are formed in the cover base portion 39, spaced apart on the left and right. The switch cover portion 40 is formed in a concave shape that opens downward. The switch cover portions 40, 40, ... are positioned, for example, in three rows on the left, right, and center in the left-right direction, spaced apart from each other in the front and back.

The stem 38 is attached to the substrate 33 with the cover base portion 39 positioned above the substrate 33. When the stem 38 is attached to the substrate 33, the switches 34, 34, ... are covered from above by the switch cover portions 40, 40, ..., respectively.

The stem 38 has a cover base 39 covered from above by a waterproof sheet 42. The waterproof sheet 42 is made of a material that is impermeable to moisture, such as polyethylene terephthalate (PET) or urethane. The waterproof sheet 42 has insertion holes 42a, 42a, ... formed at intervals in the front and back.

The waterproof sheet 42 is attached to the underside of the upper case 4 with double-sided tape or the like. Therefore, the first mounting holes 6b, 6b, ... and the second mounting holes 6c, 6c, ... formed in the upper case 4 are blocked from below by the waterproof sheet 42, and moisture is prevented from entering the internal space 2a from the first mounting holes 6b, 6b, ... and the second mounting holes 6c, 6c, .... Also, when the first engagement holes 12, 12, ... and the second engagement holes 13, 13, ... are connected to the internal space 2a of the case body 2, the first engagement holes 12, 12, ... and the second engagement holes 13, 13, ... are blocked from below, and moisture is prevented from entering the internal space 2a from the first engagement holes 12, 12, ... and the second engagement holes 13, 13, ....

The switch cover parts 40, 40, ... located in the center row of the three rows of stems 38 are inserted from below into the insertion holes 42a, 42a, ... respectively. A waterproof sheet 42 may be attached from above to the remaining part of the cover base part 39.

When the upper case 4 and the bottom case 5 are joined, a packing 43 is placed between the upper case 4 and the bottom case 5. The packing 43 is made of a rubber material or the like and is formed into a ring shape, and is tightly attached to the outer periphery of the upper case 4 and the outer periphery of the bottom case 5. The packing 43 seals the gap between the upper case 4 and the bottom case 5, preventing moisture from entering through this gap.

The upper case 4 and the bottom case 5 are joined by inserting the joining pins 4a, 4a, ... into the joining holes 15a, 15a, ... respectively. At this time, the insertion pins 4b, 4b of the upper case 4 are inserted into the pin insertion holes 39a, 39a of the stem 38 respectively, and the cover base part 39 of the stem 38 is pressed from above by the base surface part 6 of the upper case 4 via the waterproof sheet 42. In addition, the insertion protrusions 41, 41, ... of the stem 38 are inserted into the insertion mounting holes 6d, 6d, ... of the upper case 4 respectively from below, and the switch covering parts 40, 40, ... of the stem 38 are inserted into the operation holes 6a, 6a, ... of the upper case 4 respectively from below.

The upper case 4 and the bottom case 5 are connected by inserting the connecting pin 4a into the connecting hole 15a, and then fixed by screws or the like. The case body 2 is formed by connecting the upper case 4 and the bottom case 5.

As described above, a first waterproof plate 44 and a second waterproof plate 45 are disposed between the case body 2 and the key top 3.

The first waterproof board 44 is made of an elastically deformable material that is impermeable to moisture, such as urethane. The first waterproof board 44 is formed in a shape that extends in the front-rear direction to correspond to the shape of the first member 17.

The first waterproof board 44 has a plurality of first pin insertion holes 44a spaced apart from each other in the front and rear directions. The first waterproof board 44 has hole blocking portions 44b, 44b on both the front and rear sides of the first pin insertion hole 44a. The hole blocking portions 44b are formed, for example, in a circular outer shape that bulges upward.

The first waterproof plate 44 is placed from above on the inner portion of the partition wall portion 8 in the upper case 4. When the first waterproof plate 44 is placed in the upper case 4, the hole blocking portions 44b, 44b, ... are positioned directly above the operation holes 6a, 6a, ... formed in the upper case 4, and the operation holes 6a, 6a, ... are covered by the first waterproof plate 44. At this time, the first pin insertion holes 44a, 44a, ... are positioned directly above the first mounting holes 6b, 6b, ....

The second waterproof board 45 is made of an elastically deformable material that is impermeable to moisture, such as urethane. The second waterproof board 45 is formed in a roughly U-shape that opens forward to correspond to the shape of the second member 18.

A number of second pin insertion holes 45a are formed at intervals in the front and rear of the two portions of the second waterproof board 45 that extend forward and backward. The second waterproof board 45 is provided with hole blocking portions 45b, 45b on both the front and rear sides of the second pin insertion hole 45a. The hole blocking portion 45b is formed, for example, with a circular outer shape that bulges upward.

The second waterproof plate 45 is placed from above in the portion between the outer wall portion 7 and the partition wall portion 8 of the upper case 4. When the second waterproof plate 45 is placed in the upper case 4, the hole blocking portions 45b, 45b, ... are positioned directly above the operation holes 6a, 6a, ... formed in the upper case 4, and the operation holes 6a, 6a, ... are covered by the second waterproof plate 45. At this time, the second pin insertion holes 45a, 45a, ... are positioned directly above the second mounting holes 6c, 6c, ....

<Attaching and detaching the key top from the case body>
Next, the attachment and detachment of the key top 3 to the case body 2 will be described (see FIGS. 9 to 11).

As described above, with the first waterproof plate 44 and the second waterproof plate 45 placed on the upper case 4, the first member 17 and the second member 18 are attached to the case body 2.

As described above, the first member 17 is attached to the case body 2 when the first waterproof plate 44 is placed in the upper case 4, by engaging the first engagement claws 22, 22, ... with the opening edges of the first engagement holes 12, 12, ... of the partition wall portion 8, and inserting the first mounting pins 24, 24, ... through the first pin insertion holes 44a, 44a, ... of the first waterproof plate 44 and fitting them into the first mounting holes 6b, 6b, .... At this time, the panel cover 37 is inserted and positioned in the cover placement hole 20a of the first member 17.

When the first mounting pin 24 is inserted into the first mounting hole 6b, the tip of the first mounting pin 24 slides against the connecting protrusion 6f, elastically deforming to reduce its diameter, and when the tip overcomes the connecting protrusion 6f, it elastically returns to its original shape and the connecting protrusion 6f engages with the opening edge of the connecting groove 24a (see Figure 9).

When the first member 17 is attached to the case body 2, the operating shafts 23, 23, ... are in contact with the hole blocking portions 44b, 44b, ... of the first waterproof plate 44 from above. Therefore, when the operating portion 21 is pressed and elastically deformed, the operating shaft 23 moves downward, and the hole blocking portion 44b and the switch covering portion 40 of the stem 38 are elastically deformed, pressing the switch 34, and a predetermined function corresponding to the pressed switch 34 is executed. On the other hand, when the pressing operation on the operating portion 21 is released and the operating portion 21 elastically returns, the operating shaft 23 moves upward, and the hole blocking portion 44b and the switch covering portion 40 elastically return, and the pressure on the switch 34 is released.

When the first member 17 is attached to the case body 2, gaps 50, 50, ... are formed between the inner wall surface 8a of the partition wall portion 8 in the upper case 4 and the opposing surfaces 17b, 17b, ... of the first member 17 (see Figure 10). In addition, the tip edge of the concealing protrusion 17c of the first member 17 is in close contact with the upper end of the inner wall surface 8a. Therefore, a gap 50 is formed below the concealing protrusion 17c, and the gap 50 is blocked from above by the concealing protrusion 17c, preventing moisture from entering the gap 50.

The second member 18 is attached to the case body 2 by, as described above, engaging the second engagement claws 29, 29, ... with the opening edges of the second engagement holes 13, 13, ... of the partition wall portion 8 with the second waterproof plate 45 placed in the upper case 4, and inserting the second mounting pins 31, 31, ... through the second pin insertion holes 45a, 45a, ... of the second waterproof plate 45 and into the second mounting holes 6c, 6c, ... to fit them together.

When the second mounting pin 31 is inserted into the second mounting hole 6c, the tip of the second mounting pin 31 slides against the connecting protrusion 6f, elastically deforming to reduce its diameter, and when the tip overcomes the connecting protrusion 6f, it elastically returns to its original shape and the connecting protrusion 6f engages with the opening edge of the connecting groove 31a (see Figure 9).

When the second member 18 is attached to the case body 2, the operating shafts 30, 30, ... are in contact with the hole blocking portions 45b, 45b, ... of the second waterproof plate 45 from above. Therefore, when the operating portion 28 is pressed and elastically deformed, the operating shaft 30 is moved downward, and the hole blocking portion 45b and the switch covering portion 40 of the stem 38 are elastically deformed, pressing the switch 34, and a predetermined function corresponding to the pressed switch 34 is executed. On the other hand, when the pressing operation on the operating portion 28 is released and the operating portion 28 elastically returns, the operating shaft 30 is moved upward, and the hole blocking portion 45b and the switch covering portion 40 elastically return, and the pressure on the switch 34 is released.

Gaps 60, 60, ... are formed between the outer wall surface 8b of the partition wall portion 8 in the upper case 4 and the opposing surfaces 18b, 18b, ... of the second member 18. In addition, the tip edge of the concealing protrusion 18c of the second member 18 is in close contact with the upper end of the outer wall surface 8b. Therefore, a gap 60 is formed in the lower portion of the concealing protrusion 18c, and the gap 60 is blocked from above by the concealing protrusion 18c, preventing moisture from entering the gap 60.

When the first member 17 is attached to the case body 2 as described above, the first member 17 can be pulled up against the case body 2, whereby the first engagement claw 22 is elastically deformed and pulled out from the first engagement hole 12, and the first mounting pin 24 is pulled out from the first mounting hole 6b, allowing the first member 17 to be removed from the case body 2.

At this time, for example, the shielding protrusion 17c is pressed with a tool 70 such as a screwdriver (flat head screwdriver) to insert the tool 70 into the gap 50, and the first member 17 can be lifted with the tool 70 to remove the first member 17 from the case body 2. The shielding protrusion 17c is elastically deformed when pressed by the tool 70, but when the pressure on the tool 70 is released, it elastically returns to its original shape.

In addition, when the second member 18 is attached to the case body 2 as described above, the second member 18 can be pulled up against the case body 2, whereby the second engagement claw 29 is elastically deformed and pulled out from the second engagement hole 13, and the second mounting pin 31 is pulled out from the second mounting hole 6c, allowing the second member 18 to be removed from the case body 2.

At this time, for example, the shielding protrusion 18c is pressed by the tool 70, the tool 70 is inserted into the gap 60, and the second member 18 is lifted by the tool 70, so that the second member 18 can be removed from the case body 2 (see FIG. 11). The shielding protrusion 18c is pressed by the tool 70 and elastically deformed, but when the pressure on the tool 70 is released, it elastically returns to its original shape.

In addition, remote control devices may display logos of manufacturers, distributors, etc., and such logos can be displayed on the surface of the key tops 3.

By adding a logo or the like in this way, the key top 3 functions as both an operating part and a nameplate, and the key top 3, which also functions as a nameplate, is configured to be replaceable with respect to the case body 2 while ensuring high waterproofing for each part placed inside the case body 2.

<Summary>
As described above, the remote control device 1 comprises a case body 2 in which a switch 34 is arranged in the internal space 2a and in which communication holes (operation hole 6a, first mounting hole 6b, second mounting hole 6c or insertion mounting hole 6d) communicating with the internal space 2a are formed, a key top 3 having operation sections 21, 28 that is detachable from the case body 2, and a first waterproof plate 44 and a second waterproof plate 45 that are elastically deformable and are arranged between the key top 3 and the case body 2 to block the communication holes.

Therefore, the communication hole is blocked by the elastically deformable first waterproof plate 44 and second waterproof plate 45 that are present between the key top 3 having the operating parts 21, 28 and the case body 2 in which the switch 34 is arranged in the internal space 2a, and the key top 3 is replaceable with respect to the case body 2, so that it is possible to operate multiple types of external devices while ensuring high waterproof performance.

In this way, the remote control device 1 is highly waterproof, which improves the reliability of its operation. In addition, the key tops 3 can be replaced with respect to the case body 2, which increases the versatility of the remote control device 1 and improves its convenience.

In addition, in the remote control device 1, the key top 3 is provided with operating shafts 23, 30 for operating the switch 34, and the first waterproof plate 44 and the second waterproof plate 45 are provided with elastically deformable hole blocking parts 44b, 45b for blocking the operation hole 6a, respectively, and the switch 34 is operated by being pressed by the operating shafts 23, 30 through the operation hole 6a and the hole blocking parts 44b, 45b.

The switch 34 is therefore operated via the elastically deformable hole blocking parts 44b, 45b that block the operation hole 6a, so the switch 34 can be reliably operated while ensuring high waterproofing for each part arranged in the internal space 2a of the case body 2.

Furthermore, the key top 3 is provided with a first engaging claw 22 and a second engaging claw 29 that are elastically deformable, the case body 2 is formed with a first engaging hole 12 and a second engaging hole 13, and the first engaging claw 22 and the second engaging claw 29 are engaged with the opening edges of the first engaging hole 12 and the second engaging hole, respectively, thereby attaching the key top 3 to the case body 2.

The elastically deformed first engagement claw 22 and second engagement claw 29 are elastically restored and engage with the opening edges of the first engagement hole 12 and second engagement hole 13, respectively, to attach the key top 3 to the case body 2, so that the key top 3 can be easily and quickly attached to and detached from the case body 2.

Furthermore, a partition wall 8 is provided on the case body 2, and opposing surfaces 17b, 18b are formed on the key top 3, which face the inner wall surface 8a or the outer wall surface 8b of the partition wall 8, and gaps 50, 60 are formed between the inner wall surface 8a or the outer wall surface 8b and the opposing surfaces 17b, 18b.

This makes it possible to insert a tool 70 such as a screwdriver into the gaps 50, 60 formed between the inner wall surface 8a or the outer wall surface 8b and the opposing surfaces 17b, 18b, and the key top 3 can be easily removed from the case body 2 using the tool 70.

In addition, the key top 3 is provided with shielding protrusions 17c, 18c that contact the inner wall surface 8a and the outer wall surface 8b, respectively, and hide the gaps 50, 60.

As a result, the gaps 50, 60 are not exposed by the shielding protrusions 17c, 18c, making it difficult for moisture to penetrate into the gaps 50, 60, improving the waterproofing of the case body 2.

Furthermore, because the shielding protrusions 17c, 18c are elastically deformable, when the tool 70 is inserted into the gaps 50, 60, the shielding protrusions 17c, 18c are elastically deformed, and when the tool 70 is pulled out of the gaps 50, 60, the shielding protrusions 17c, 18c elastically return to their original position and come into contact with the inner wall surface 8a or the outer wall surface 8b.

This allows the tool 70 to be easily inserted into the gaps 50 and 60 while improving the waterproofing of the case body 2.

Furthermore, the parts of the key top 3 that have the operating parts 21, 28 are provided as main body parts 25, 32, and the operating shafts 23, 30 are detachable from the main body parts 25, 32.

As a result, the mounting positions of the operating shafts 23, 30 relative to the main body 25, 32 can be selected arbitrarily according to the corresponding external device, improving the versatility of the remote control device 1.

For example, the operating shafts 23, 30 may be attached only to positions corresponding to some of the operating units 21, 28 among the multiple operating units 21, 28, and by making it possible to operate only the necessary operating units 21, 28, it is possible to reduce manufacturing costs and improve versatility.

In addition, the key top 3 is provided with a first mounting pin 24 and a second mounting pin 31, the case body 2 is formed with a first mounting hole 6b and a second mounting hole 6c into which the first mounting pin 24 and the second mounting pin 31 are fitted, a waterproof sheet 42 is placed in the internal space 2a to cover the first mounting hole 6b and the second mounting hole 6c, and a switch 34 is positioned on the opposite side of the key top 3 with the waterproof sheet 42 in between.

Therefore, the waterproof sheet 42 that covers the first mounting hole 6b and the second mounting hole 6c is positioned between the first mounting hole 6b and the second mounting hole 6c and the switch 34, thereby improving the waterproofing of the switch 34.

In the above, an example is shown in which the key top 3 is composed of two members, the first member 17 and the second member 18, but the key top 3 is not limited to being composed of two members, and may be composed of one member or three or more members.

1 Remote control device 2 Case body 2a Internal space 3 Key top 6a Operation hole (communication hole)
6b First mounting hole (communication hole)
6c Second mounting hole (communication hole)
6d Insertion mounting hole (communication hole)
8 Partition wall 8a Inner wall surface 8b Outer wall surface 12 First engagement hole 13 Second engagement hole 17b Opposing surface 17c Concealment protrusion 18b Opposing surface 18c Concealment protrusion 21 Operation portion 22 First engagement claw 23 Operation shaft 24 First mounting pin 25 Main body portion 28 Operation portion 29 Second engagement claw 30 Operation shaft 31 Second mounting pin 32 Main body portion 33 Board 34 Switch 42 Waterproof sheet 44 First waterproof board 44b Hole blocking portion 45 Second waterproof board 45b Hole blocking portion 50 Gap 60 Gap

Claims (7)

a case body having an internal space in which a switch is disposed and a communication hole communicating with the internal space;
A key top having an operation portion that is detachable from the case body;
a waterproof plate that is elastically deformable and is disposed between the key top and the case body and closes the communication hole ,
A partition wall is provided in the case body,
The key top is provided with an opposing surface facing the wall surface of the partition wall portion,
A gap is formed between the wall surface and the opposing surface.
Remote control device. a case body having an internal space in which a switch is disposed and a communication hole communicating with the internal space;
A key top having an operation portion that is detachable from the case body;
a waterproof plate that is elastically deformable and is disposed between the key top and the case body and closes the communication hole,
A mounting pin is provided on the key top,
The case body is formed with a mounting hole into which the mounting pin is fitted,
A waterproof sheet is placed in the internal space to cover the mounting hole,
The switch is located on the opposite side of the key top with the waterproof sheet in between.
Remote control device. The key top is provided with a concealing protrusion that contacts the wall surface and conceals the gap.
2. The remote control device according to claim 1 . The concealing protrusion is elastically deformable.
4. The remote control device according to claim 3 . The communication hole is formed as an operation hole for operating the switch,
An operating shaft for operating the switch is provided on the key top,
The watertight board is provided with a hole closing portion that closes the operation hole,
The switch is operated by being pressed by the operating shaft through the operating hole and the hole closing portion.
5. The remote control device according to claim 1, 2, 3 or 4 . A portion of the key top having the operation portion is provided as a main body portion,
The operating shaft is detachable from the main body.
6. The remote control device according to claim 5 . The key top is provided with an elastically deformable engagement claw,
An engagement hole is formed in the case body,
The key top is attached to the case body by the engagement claw engaging with the opening edge of the engagement hole.
7. The remote control device according to claim 1, 2, 3, 4, 5 or 6 .

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