Handheld transmitter

Abstract

To enhance the strength of a structure.SOLUTION: A handheld transmitter 1 includes a substrate 40 on which switches 41 and 42 are mounted and which constitute an electronic circuit, and a board case 50 which houses the board 40. The board case 50 includes a board holding portion 51 which holds the board 40, a battery housing portion 52 that is formed as a through-hole penetrating a surface opposite to a surface on which the board holding portion 51 is provided and that houses the battery 30 that drives the electronic circuit, a positive electrode 44 that is provided on an inner peripheral surface 521 of the battery housing portion 52 and electrically connects to a positive electrode side surface 302 that is the positive electrode on the side surface of the battery 30, and a rib 57 that is provided in a predetermined range in the circumferential direction of an open end 522 of the battery housing portion 52 that includes the position of a positive electrode 44.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a portable transmitter. [Background technology]

[0002] BACKGROUND ART As a portable transmitter that outputs an electronic signal to lock or unlock a locked object such as a door, for example, an electronic key that houses electronic components and a mechanical key inside a case is known (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-109472 Summary of the Invention [Problem to be solved by the invention]

[0004] Portable transmitters, such as the electronic key described above, generally include a push-button switch for inputting operations such as locking and unlocking. In portable transmitters, the push-button switch is repeatedly pressed by the operator's finger each time the switch is operated. When a coin-type battery is used in a portable transmitter, unless the battery is inserted into the battery housing, the positive electrode may become trapped between the negative electrode of the battery and the bottom of the battery housing, resulting in an inability for the positive electrode to properly contact the positive electrode on the periphery of the battery. In this case, the portable transmitter fails to output the desired electronic signal even when the switch is operated.

[0005] The present invention addresses the above-mentioned problem as an example, and aims to provide a portable transmitter in which the positive electrode is in proper contact with the positive electrode of the battery, thereby ensuring a reliable electrical connection. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the portable transmitter of the present invention is a portable transmitter comprising a board on which a switch is mounted and which constitutes an electronic circuit, and a board case which houses the board, and the board case has a board holding portion which holds the board, a battery accommodating portion which is formed in the shape of a through hole penetrating the surface opposite to the surface on which the board holding portion is provided and which houses a battery that drives the electronic circuit, a positive electrode provided in the battery accommodating portion and which is electrically connected to the positive electrode on the side of the battery, and a plurality of ribs provided in a predetermined range in the circumferential direction of the open end of the battery accommodating portion, including the position of the positive electrode. [Effects of the Invention]

[0007] According to the portable transmitter of the present invention, the positive electrode is in proper contact with the positive electrode of the battery, ensuring a reliable electrical connection. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a schematic configuration of a portable transmitter according to an embodiment of the present invention; [Figure 2] 2 is a perspective view of the portable transmitter shown in FIG. 1 with the front case, switch cover, and silicone cover removed. FIG. [Figure 3] 2 is a perspective view of the portable transmitter shown in FIG. 1, seen from the rear side with the rear case and packing removed. FIG. [Figure 4] 2 is a bottom view of the portable transmitter shown in FIG. 1 with the rear case, packing, and battery removed. [Figure 5] 1 is a perspective view showing a schematic configuration of a door equipped with a portable transmitter and an electronic lock device according to an embodiment of the present invention; [Figure 6] 2 is a perspective view of a circuit board case in the portable transmitter shown in FIG. 1, seen from the back side. [Figure 7] 2 is a perspective view seen from the rear side, schematically illustrating the configuration of the portable transmitter shown in FIG. 1. FIG. [Figure 8] FIG. 2 is a perspective view showing a switch cover in the portable transmitter shown in FIG. [Figure 9] 2 is a perspective view of the portable transmitter shown in FIG. 1, seen from the front side with the front case removed. FIG. [Figure 10] 2 is a perspective view of the portable transmitter shown in FIG. 1, seen from the rear side with the rear case removed. FIG. [Figure 11] 5 is an enlarged perspective view showing the vicinity of a locking portion in the portable transmitter shown in FIG. 4. FIG. [Figure 12] 8 is a partial cross-sectional view taken along the line AA of the portable transmitter shown in FIG. 7, showing the vicinity of a locking portion. [Figure 13] 2 is a perspective view of the front case of the portable transmitter shown in FIG. 1, seen from the back side. [Figure 14] 2 is a perspective view of the rear case of the portable transmitter shown in FIG. 1, viewed from the front side. FIG. [Figure 15] 2 is a bottom view showing a front case of the portable transmitter shown in FIG. 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a portable transmitter according to an embodiment of the present invention will be described with reference to the drawings.

[0010] Fig. 1 is a perspective view showing a schematic configuration of a portable transmitter 1 according to an embodiment of the present invention. Fig. 2 is a perspective view of the portable transmitter 1 with the front case 11, switch cover 21, and board cover 70 removed. Fig. 3 is a perspective view of the portable transmitter 1 as seen from the back side with the back case 12 and packing 23 removed. Fig. 4 is a bottom view of the portable transmitter 1 with the back case 12, packing 23, and battery 30 removed.

[0011] In the following description, for convenience, the longitudinal direction (x-axis direction) of the portable transmitter 1 shown in Fig. 1 is referred to as the front-rear direction. Also, in the following description, the lateral direction (y-axis direction) of the case 10 of the portable transmitter 1 is referred to as the width direction or left-right direction. Also, in the following description, the thickness direction (z-axis direction) of the case 10 of the portable transmitter 1 is referred to as the up-down direction, vertical direction, or height direction.

[0012] 1 to 3, portable transmitter 1 according to the present embodiment includes a board 40 on which switches 41 and 42 are mounted to form an electronic circuit, and a board case 50 that houses board 40. In portable transmitter 1, board case 50 includes a board holding portion 51 that holds board 40, a battery housing portion 52 that is formed as a through-hole penetrating the surface opposite to the surface on which board holding portion 51 is provided and that houses battery 30 that drives the electronic circuit, a positive electrode 44 that is provided in battery housing portion 52 and electrically connects to positive electrode side surface 302 that is the positive electrode on the side of battery 30, and a plurality of ribs 57 that are provided in a predetermined range around open end 522 of battery housing portion 52, including the position of positive electrode 44. The configuration and operation of portable transmitter 1 will be described in detail below.

[0013] [Door Overview] FIG. 5 is a perspective view schematically illustrating the configuration of a door 100 equipped with a portable transmitter 1 and an electronic lock device according to an embodiment of the present invention. FIG. 5 is a perspective view of the door 100, such as a front door, as viewed from the outside of the room. The door 100 has an exterior surface 101, which is the exterior surface shown in FIG. 5, and an interior surface 102, which is the interior surface shown in FIG. 5, and is attached to a door frame (not shown) so as to be able to open and close. The door 100 is equipped with a so-called push-pull handle device 400. The end of the door 100 (the right side in the drawing, on the side where the handle device 400 is not attached) is connected to the door frame by a hinge (not shown). The door 100 can rotate around the hinge. In other words, the door 100 shown in FIG. 5 is a so-called right-handed door. In addition to the handle device 400, the door 100 is equipped with, for example, a battery box 500, a latch lock 1000, an upper box lock 600, and a lower box lock 700. The portable transmitter 1 is a remote control key that can lock and unlock the upper box lock 600 and the lower box lock 700 of the door 100 by electrical signals, or manually lock and unlock the upper box lock 600 and the lower box lock 700 of the door 100 by using a key 60 provided in the portable transmitter. The upper box lock 600 and the lower box lock 700 are electrically locked and unlocked by an electronic lock device (not shown) powered by a battery box 500 receiving an electrical signal from the portable transmitter 1.

[0014] [Portable transmitter configuration] 1 to 3, the portable transmitter 1 includes a case 10 as a housing that houses a board 40 and a board case 50. The case 10 is formed by joining a front case 11 as a first housing that covers the front surface and a back case 12 as a second housing that covers the back surface.

[0015] At the end of the case 10 (on the left side in FIG. 1), a head 61 of the key 60 is exposed to the outside of the case 10 so that the key 60 stored in the portable transmitter 1 can be removed with a finger. When the key 60 is inserted, the head 61 forms part of the outer periphery of the case 10, and the portable transmitter 1 as a whole has an oval or approximately oval shape.

[0016] 2, in the front case 11, the switch cover 21 shown in FIG. 1 is disposed between the front case 11 and the board cover 70 that covers the switches 41, 42. The switch cover 21 constitutes a lock button 211 and an unlock button 212 that enable the multiple switches 41, 42 to accept their corresponding operations, i.e., locking and unlocking operations, from outside the case 10. The lock button 211 and the unlock button 212 constitute the cover body of the switch cover 21.

[0017] Furthermore, the front case 11 is provided with a plurality of openings, namely, button openings 111 and 112, so that the lock button 211 and the unlock button 212 of the switch cover 21 can be exposed to the outside. In this embodiment, the side of the front case 11 on which the lock button 211 and the unlock button 212 of the portable transmitter 1 are arranged is referred to as the front side, and the opposite side is referred to as the back side.

[0018] As shown in Figures 2 to 4, the portable transmitter 1 has a board case 50 on which a board 40 is mounted stored inside the case 10, i.e., in a storage space formed below the front case 11 and the switch cover 21 and above the back case 12.

[0019] The substrate 40 is mounted with electronic components that constitute an electronic circuit for realizing the function of transmitting locking / unlocking operations as the portable transmitter 1, including switches 41 and 42. The switches 41 and 42 are both push-button switches. The switch 41 is a switch for transmitting an electrical signal for locking the door 100. The switch 42 is a switch for transmitting an electrical signal for unlocking the door 100. The structures of the switches 41 and 42 are not particularly limited.

[0020] Fig. 6 is a perspective view of the back surface of the board case 50 in the portable transmitter 1. Fig. 7 is a perspective view of the back surface, schematically showing the configuration of the portable transmitter 1.

[0021] 6, since the board case 50 is housed in the housing space formed inside the case 10 as described above, it has an overall oval or approximately oval shape similar to the shape of the case 10. In addition to the board holding portion 51, battery housing portion 52, and rib 57 described above, the board case 50 also has a bottom rib 53, a key housing portion 54, a locking portion 55, a locking portion support portion 56, and a claw portion 59.

[0022] 2, the board holding part 51 is provided on the front surface side of the board case 50. The board holding part 51 surrounds the outer periphery of the board 40 and supports the back surface side of the board 40 so that the surface of the board 40 on which the switches 41 and 42 are mounted faces the front surface side and is held in the board case 50. For this reason, the board holding part 51 has an outer peripheral wall part 511 and a bottom rib 53 (see FIGS. 4 and 6) that supports at least a portion of the back surface of the board 40 inside the outer peripheral wall part 511, and has a shape like a container with an open front surface side.

[0023] Battery accommodating section 52 is formed as a cylindrical or approximately cylindrical through-hole that penetrates from the front side where board holding section 51 is provided to the back side. Battery accommodating section 52 is provided in an area that includes the opposite side of the front side of board 40 from the position where switch 41 is provided. Battery accommodating section 52 has a shape that can surround the outer shape of battery 30 in order to accommodate battery 30 that drives the electronic circuit, as shown in FIG. 3 .

[0024] The battery 30 is generally called a coin-type battery and has an outer shape similar to that of conventional batteries. Therefore, the inner surface 521 of the battery housing 52 faces the positive electrode side surface 302 on the side of the battery 30, the open end 522 facing the back side of the board case 50, i.e., the back side case 12, faces the positive electrode 301 of the battery 30, and the bottom 523 located on the back side of the board 40 faces the negative electrode of the battery 30. The battery housing 52 is provided with a positive electrode side electrode 44 that is electrically connected to the positive electrode side surface 302 of the battery 30. The positive electrode side electrode 44 is capable of contacting a portion of the arc-shaped portion of the positive electrode side surface 302.

[0025] As described above, the battery housing section 52 has an open end 522 on the back side of the board case 50, and the battery 30 can be attached and detached through this open end 522. By removing the screw 127 that fastens the front case 11 and the back case 12 to each other near the operation protrusion 553 of the locking section 55, the back case 12 can be removed from the front case 11 and the battery housing section 52, allowing the battery 30 to be replaced. Note that the rectangular frame 121 in FIG. 7 is the area where information marking is performed with a laser. The information marking is, for example, a character string and / or a number string that can be visually read by a person, or a one-dimensional and / or two-dimensional image that can be read by a reader.

[0026] The ribs 57 are provided in a predetermined circumferential range around the open end 522 of the battery accommodating section 52, including the position where the positive electrode 44 is provided. The ribs 57 protrude inward from the open end 522 of the battery accommodating section 52. A plurality of the ribs 57, for example, three ribs, are arranged at intervals in a predetermined range, for example, approximately halfway around the open end 522. The number of ribs 57, the amount of protrusion inward, the circumferential length, and the spacing between the ribs are not limited to the examples shown in FIGS. 3 and 4 . The ribs 57 are arranged so as to overlap the positive electrode 44 when the portable transmitter 1 is viewed from below as shown in FIG. 4 . Because the ribs 57 protrude inward from the battery accommodating section 52, a user cannot insert the battery 30 vertically into the battery accommodating section 52 from the back side. The user can insert the battery 30 by sliding it diagonally in the x and y axes from the side where the tabs 59 are provided toward the battery housing section 52 on the surface side of the rib 57 (below the z axis direction in FIG. 3 ). If the battery 30 is not inserted in this manner, i.e., if the above-described rib 57 is not present, the positive electrode 44 may not properly contact the positive electrode side surface 302 of the battery 30, and the positive electrode 44 may become trapped between the negative electrode of the battery 30 and the back surface of the substrate 40 located on the bottom 523 side of the through-hole of the battery housing section 52. This may result in a malfunction in which the desired electronic signal cannot be output even when the switches 41 and 42 are operated. However, because the above-described rib 57 is present, the user must slide the battery 30 at an angle relative to the battery housing section 52. As a result, the positive electrode side surface 302 of the battery 30 spreads the pair of positive electrode sides 44 apart from each other, allowing the pair of positive electrodes 44 to embrace and hold the positive electrode side surface 302 of the battery 30. This allows the positive electrode 44 to come into proper contact with the positive electrode 301 of the battery 30, ensuring a reliable electrical connection.

[0027] The battery 30 accommodated in the battery accommodating section 52 is held inside the battery accommodating section 52 by a portion of the positive electrode 301 being pressed by the rib 57. The battery 30 held inside the battery accommodating section 52 by the rib 57 also functions as a structural component that increases the rigidity of the board 40 together with the board case 50. In other words, in the portable transmitter 1, the back surface of the board 40 is covered by the board case 50 and the battery 30, which suppresses deformation of the board 40 and reduces malfunction of the switches 41 and 42 caused by deformation of the board 40.

[0028] The claws 59 are provided in the battery accommodating section 52 in a range that is symmetrical about the center of the battery accommodating section 52 and a predetermined range in which the ribs 57 are provided in the circumferential direction. The claws 59 exert a biasing force on the positive electrode side surface 302 of the battery 30, and together with the ribs 57, press and hold part of the battery 30 inside the battery accommodating section 52.

[0029] A part of the back surface of the substrate 40 held by the substrate holding part 51 is exposed on the bottom part 523 side of the through hole of the battery accommodating part 52. A negative electrode 43 that can come into contact with the negative electrode of the battery 30 is arranged on the back surface of the substrate 40.

[0030] 4 and 6, the bottom rib 53 is provided inside the battery accommodating portion 52. The bottom rib 53 protrudes from the side surface of the through-hole of the battery accommodating portion 52 on the bottom 523 side toward the center of the through-hole. The bottom rib 53 is provided at a position where it can come into contact with the back surface of the substrate 40 when the substrate 40 is held by the substrate holding portion 51. Therefore, the bottom rib 53 supports the back surface of the substrate 40.

[0031] The key storage section 54 is a groove-shaped portion provided in the base case 50 to store the blade portion 62 of the key 60 inside the portable transmitter 1. The key storage section 54 is provided on the back side of the base case 50. The key storage section 54 is formed so that the head 61 of the key 60 is exposed to the outside of the case 10. A locking portion 55 provided on the case 10 prevents the key 60 from falling out of the case 10.

[0032] The locking portion 55 has a locking portion main body 551, a coil spring 552, and an operation protrusion 553 (see FIG. 7). The locking portion main body 551 can advance and retreat toward the boundary between the head portion 61 and the blade portion 62 of the key 60, and by engaging with the key 60, it can restrict movement of the blade portion 62 of the key 60 in the extension direction. The coil spring 552 biases the locking portion main body 551 toward the key 60. The operation protrusion 553 is a part that is operated when the user removes the key 60 from the portable transmitter 1. The user can release the lock between the key 60 and the locking portion main body 551 of the locking portion 55 against the biasing force of the coil spring 552 by sliding the locking portion 55 of the operation protrusion 553 in the y-axis direction, which intersects with the x-axis direction, which is the extension direction of the blade portion 62 of the key 60.

[0033] The locking portion support portion 56 is provided on the back side of the board case 50, closer to the back case 12 than the locking portion 55. The locking portion support portion 56 supports the locking portion 55 with respect to the case 10 while maintaining the locking position between the locking portion 55 and the key 60. By providing the locking portion support portion 56 on the board case 50, it is possible to prevent the locking portion 55 from falling off the case 10 when the user removes the back case 12, for example, to replace the battery.

[0034] Fig. 8 is a perspective view showing the switch cover 21 of the portable transmitter 1 as seen from the back side. Fig. 9 is a perspective view of the portable transmitter 1 as seen from the front side with the front case 11 removed. Fig. 10 is a perspective view of the portable transmitter 1 as seen from the back side with the back case 12 removed.

[0035] 8 and 9, the switch cover 21 has a lock button 211 and an unlock button 212 provided corresponding to the above-mentioned button openings 111, 112, respectively, a connecting portion 213 connecting the lock button 211 and the unlock button 212, and a protruding portion 214 that protrudes from the connecting portion 213 toward the board 40. The protruding portion 214 is a portion that is located at a gate when the switch cover 21 is injection molded, and is a portion that is partially thickened.

[0036] 9, a board cover 70 is provided on the board case 50 side, which covers the surface side of the board 40 on which the switches 41 and 42 are mounted and has a recess 71 that can receive the protrusion 214. The protrusion 214 of the switch cover 21 and the recess 71 of the board cover 70 fit together, making it easy to position the switch cover 21 relative to the board 40 by using a gate that is provided when the switch cover 21 is formed.

[0037] As shown in Fig. 10, a packing 23 is provided on the back side of the battery 30 on the back side of the board case 50. The packing 23 is a waterproof member such as polyurethane foam or an O-ring. Covering the battery 30 with such packing 23 prevents water that has entered from outside the portable transmitter 1 from penetrating into the battery 30. The packing 23 may be provided so as to detachably cover the open end 522 of the battery housing section 52 as shown in Fig. 10, or may be fixed to a battery facing section 126 (Fig. 14) of the back case 12 that faces the battery 30.

[0038] Fig. 11 is an enlarged perspective view showing the vicinity of the locking portion 55 in the portable transmitter 1. Fig. 12 is a partial cross-sectional view taken along line AA showing the vicinity of the locking portion 55 in the portable transmitter 1.

[0039] As shown in FIGS. 11 and 12 , the locking portion 55 has a semicircular cross-sectional projection 555 at the contact portion with the locking portion support portion 56. The front case 11 also has a semicircular cross-sectional projection 123 at the contact portion with the locking portion 55. The semicircular cross-sectional projections 555 and 123 stabilize the contact state between the locking portion support portion 56 and the front case 11 and the locking portion 55, i.e., the position of the locking portion 55, thereby guiding the locking portion 55 as it slides. Furthermore, the projections 555 and 123 prevent the locking portion 55 from tilting, stabilizing the sliding movement of the locking portion 55. Furthermore, the frictional resistance generated between the locking portion support portion 56 and the front case 11 and the locking portion 55 is reduced, allowing the user to slide the locking portion 55 more smoothly.

[0040] Fig. 13 is a perspective view of the front case 11 of the portable transmitter 1 as seen from the back side. Fig. 14 is a perspective view of the back case 12 of the portable transmitter 1 as seen from the front side. Fig. 15 is a bottom view showing the front case 11 of the portable transmitter 1.

[0041] As shown in FIGS. 4, 6, 9, and 13 to 15, in the portable transmitter 1, the front case 11, the back case 12, the locking portion 55, and the circuit board case 50 constituting the case 10 have protrusions 115, 124, 58, 541, 542, and 554, respectively, at portions facing the key 60 stored in the key holding portion 54. As shown in FIGS. 13 and 15, the front case 11 has the protrusion 115 at a portion that abuts against the head 61 when the key 60 is stored in the key holding portion 54. As shown in FIG. 14, the protrusion 124 has the protrusion 124 at a portion that abuts against the surface facing the back side of the blade portion 62 when the key 60 is stored in the key holding portion 54. As shown in FIG. 6, the protrusion 58 has the protrusion 58 at a portion that abuts against the surface facing the front side of the blade portion 62 when the key 60 is stored in the key holding portion 54. 4 and 6, protrusions 541, 542 are provided on the surface that faces the side of blade portion 62 when key 60 is stored in key storage portion 54. As shown in Fig. 9, protrusion 554 is provided on the surface of locking portion 55 that faces the side of head 61 of key 60. In portable transmitter 1, by providing protrusions 115, 124, 58, 541, 542, 554 on case 10, key 60 can be pressed down to prevent rattling.

[0042] [Effects of the portable transmitter] In the portable transmitter 1 described above, the circuit board case 50 has a plurality of ribs 57 provided at the open end 522 of the battery housing section 52. The ribs 57 hold the battery 30 inside the battery housing section 52. Therefore, with the portable transmitter 1, the ribs 57 require the user to insert the battery 30 by sliding it at an angle relative to the battery housing section 52. As a result, the positive side surface 302 of the battery 30 spreads the pair of positive electrodes 44 apart from each other, allowing the positive side surface 302 of the battery 30 to be sandwiched between the pair of positive electrodes 44 as if embracing them. This ensures that the positive electrode 44 properly contacts the positive electrode 301 of the battery 30, ensuring reliable electrical continuity. Furthermore, according to the portable transmitter 1, the battery 30 is held inside the battery housing 52 by the rib 57 provided at the open end 522, which prevents the case 10 and the circuit board 40 from being deformed by repeated pressure from the operator's fingers each time an operation is performed, and also prevents malfunction of the switches 41 and 42. In other words, the portable transmitter 1 can also increase the rigidity (strength) of the structure such as the case 10.

[0043] Furthermore, in the portable transmitter 1 described above, the switch cover 21 provided between the case 10 and the circuit board 40 has a protrusion 214 at the connecting portion 213 that connects the lock button 211 and the unlock button 212, and the circuit board cover 70 provided on the circuit board case 50 side has a recess 71 that can receive the protrusion 214, so that the protrusion 214 formed as a gate during the manufacturing of the switch cover 21 can be used to prevent the switch cover 21 from shifting out of position.

[0044] In addition, the portable transmitter 1 described above is provided with a locking portion support portion 56 on the base case 50 that supports the locking portion 55 of the key 60 relative to the case 10, thereby preventing the locking portion 55 from popping out of the case 10.

[0045] Furthermore, in the portable transmitter 1 described above, the locking portion 55 has the protrusions 555, 123 with semicircular cross section at the contact portion with the locking portion support portion 56, so that the sliding movement of the locking portion 55 can be stabilized.

[0046] The portable transmitter 1 described above is provided with the protrusions 115, 124, 58, 541, 542, and 554 at the portion of the key storage section 54 that faces the key 60, thereby pressing down the key 60 and preventing it from rattling.

[0047] In addition, those skilled in the art can appropriately modify the present invention in accordance with conventionally known knowledge. As long as such modifications still comprise the structure of the present invention, they are of course included in the scope of the present invention. [Explanation of symbols]

[0048] 1...portable transmitter, 10...case (housing), 11...front side case (first housing), 12...back side case (second housing), 21...switch cover, 23...packing, 30...battery, 40...circuit board, 41, 42...switch, 43...negative electrode, 44...positive electrode, 50...circuit board case, 51...circuit board holding portion, 52...battery accommodating portion, 53...bottom rib, 54...key accommodating portion, 55...locking portion, 56...locking portion support portion, 57...rib, 58, 115, 124, 541, 542, 554...protrusion portion, 59...claw portion, 60...key, 61...head portion, 62...blade portion, 70...circuit board cover, 71...recess, 1 00...door, 101...exterior surface, 102...interior surface, 111...button opening, 112...button opening, 121...rectangular frame portion, 123, 555...protrusion, 126...battery facing portion, 211...locking button (cover body), 212...unlocking button (cover body), 213...connecting portion, 214...protrusion, 231...recess, 301...positive electrode disc surface, 302...positive electrode side surface, 400...handle device, 500...battery box, 511...outer peripheral wall portion, 512...rear support portion, 521...inner peripheral surface, 522...open end, 523...bottom, 551...locking portion body, 553...operation protrusion, 600...upper box lock, 700...lower box lock

Claims

1. A portable transmitter comprising: a substrate on which a switch is mounted and which constitutes an electronic circuit; and a substrate case which houses the substrate; The substrate case is a substrate holder for holding the substrate; a battery accommodating portion formed in the shape of a through-hole penetrating a surface opposite to the surface on which the substrate holding portion is provided, and accommodating a battery that drives the electronic circuit; a positive electrode provided in the battery accommodating portion and electrically connected to a positive electrode on a side surface of the battery; a plurality of ribs provided in a predetermined range including the position of the positive electrode in a circumferential direction of the open end of the battery accommodating portion; A portable transmitter having:

2. At least three ribs are provided in the predetermined range.

2. The portable transmitter of claim 1.

3. a housing that houses the substrate and the substrate case; a board cover that covers the board and the switch; a switch cover that is disposed between the housing and the board cover and that can receive an operation on the switch from outside the housing; a plurality of the switches are mounted on the substrate; the housing includes a first housing covering a surface of the board on which the switches are mounted and having a plurality of openings corresponding to the positions of the switches, and a second housing joined to the first housing; the switch cover includes cover bodies provided corresponding to the openings, connecting portions that connect the cover bodies, and protrusions that protrude from the connecting portions toward the board, the substrate cover has a recess capable of receiving the protrusion; 2. The portable transmitter of claim 1.

4. The housing has a key storage section that stores a key, and a locking section that slides relative to the key in a direction intersecting the extension direction of the key to lock and unlock the key, the board case is provided with a locking portion support portion that supports the locking portion on the housing; 4. The portable transmitter of claim 3.

5. The locking portion has a semicircular cross-sectional projection at a contact portion with the locking portion support portion.

5. The portable transmitter of claim 4.

6. The housing has a protrusion at a portion facing the key in the key storage portion.

5. The portable transmitter according to claim 4.

Images