Locking mechanism, battery box and disaster prevention radio device

Abstract

To provide a lock mechanism, a battery box, and a disaster prevention wireless device that can be easily attached and detached while preventing unintended engagement and disengagement.SOLUTION: A locking mechanism includes a first member having an engaged portion 321a, a second member having an engaging portion 351 that can be engaged with the engaged portion 321a, a first releasing portion 321 provided on one of the first member and the second member and releasing the engagement between the engaged portion 321a and the engaging portion 351 by a releasing operation, and a second releasing portion 33 provided on the other one of the first member and the second member and elastically urged to a position that blocks the release operation of the first releasing portion 321.SELECTED DRAWING: Figure 15

Description

[Technical Field]

[0001] The present invention relates to a locking mechanism, a battery box, and a disaster prevention wireless device. [Background technology]

[0002] Double lock structures that prevent unintentional disengagement of two components have been disclosed in the past. For example, Patent Document 1 discloses a battery box lid that has a small hole that penetrates the main body above the part that engages with the main body, and is configured so that the engagement can be released by inserting a needle-shaped object into the small hole. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-68082 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the structure of Patent Document 1, it is necessary to use a needle-shaped member to release the engagement of the lid, which makes the release operation complicated.

[0005] An object of the present invention is to provide a locking mechanism, a battery box, and a disaster prevention wireless device that can be easily attached and detached while preventing unintentional release. [Means for solving the problem]

[0006] The locking mechanism of the present invention comprises a first member having an engaged portion, a second member having an engaging portion engageable with the engaged portion, and Material a first release portion that is provided and that releases the engagement between the engaged portion and the engaging portion by a release operation; Record number second part Material a second release portion that is provided and resiliently biased to a position that inhibits the release operation of the first release portion; The first member is connected to the second member by a rotating shaft at an end opposite to the end where the first release portion is provided so as to be openable and closable, the first release portion resiliently connects the engaged portion to the first member and has an operating claw for performing a release operation between the engaged portion and the engaging portion, the second release portion is formed in a spring plate shape and resiliently connected to the second member, at least a part of a tip of which abuts against the operating claw and has a protruding portion arranged in parallel to the operating claw so as to narrow a gap between the protruding portion and the operating claw, and by pushing the second release portion into the second member, the gap between the protruding portion and the operating claw is widened, thereby enabling the operating claw to perform a release operation between the engaged portion and the engaging portion. A locking mechanism characterized by:

[0007] The battery box of the present invention includes a first member having an engaged portion, a second member having an engaging portion engageable with the engaged portion, and Material a first release portion that is provided and that releases the engagement between the engaged portion and the engaging portion by a release operation; Record number second part Material a second release portion that is provided and resiliently biased to a position that inhibits the release operation of the first release portion; the first member is connected to the second member by a rotating shaft at an end opposite to an end where the first release portion is provided so as to be openable and closable, the first release portion resiliently connects the engaged portion to the first member and has an operation claw for performing a release operation between the engaged portion and the engaging portion, the second release portion is formed in a spring plate shape and resiliently connected to the second member, at least a part of a tip of the second release portion abuts against the operation claw and has a protruding portion arranged in parallel to the operation claw so as to narrow a gap between the protruding portion and the operation claw, and by pushing the second release portion into the second member, the gap between the protruding portion and the operation claw is widened, thereby enabling an operation to release the engagement between the engaged portion and the engaging portion by the operation claw. It is characterized by the following.

[0008] The disaster prevention wireless device of the present invention includes a cover member having an engaged portion, a main body having an engaging portion that can engage with the engaged portion, and the cover member. Material a first release portion that is provided and that releases the engagement between the engaged portion and the engaging portion by a release operation; Notes body To the department a second release portion that is provided and resiliently biased to a position that inhibits the release operation of the first release portion; The cover member is connected to the main body portion by a rotating shaft at an end opposite to the end where the first release portion is provided so as to be able to open and close, the first release portion resiliently connects the engaged portion to the cover member and has an operation claw for performing an operation to release the engaged portion and the engaging portion, the second release portion is formed in a spring plate shape and resiliently connected to the main body portion, at least a part of a tip thereof abuts against the operation claw and has a protruding portion arranged in parallel to the operation claw so as to narrow a gap with the operation claw, and by pushing the second release portion into the inside of the main body portion, the gap between the protruding portion and the operation claw is widened, thereby enabling an operation to release the engagement between the engaged portion and the engaging portion by the operation claw. It is characterized by the following. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a locking mechanism, a battery box, and a disaster prevention wireless device that can be easily attached and detached while preventing unintentional engagement and detachment. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a front perspective view of a disaster prevention wireless device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a rear perspective view of the disaster prevention wireless device according to the embodiment of the present invention. [Figure 3] FIG. 2 is a rear perspective view of the disaster prevention wireless device according to the embodiment of the present invention, omitting the configuration of the rear case side. [Figure 4] 1A and 1B show an operating member and a switch element according to an embodiment of the present invention, in which FIG. 1A is a perspective view seen from the operating member side, and FIG. 1B is a perspective view seen from the switch element side. [Figure 5]1 is a cross-sectional perspective view of a switch device according to an embodiment of the present invention, with a portion thereof omitted, as viewed from the inside of a case. [Figure 6] 6 is a cross-sectional view showing the disaster prevention wireless device according to the embodiment of the present invention, taken along the line VI-VI in FIG. 3 around the switch device. [Figure 7] FIG. 2 is a rear perspective view showing the periphery of the selection device according to the embodiment of the present invention, with the configuration of the rear case side omitted. [Figure 8] 8 is a cross-sectional view of the selection device of FIG. 7 along line VIII-VIII according to an embodiment of the present invention. [Figure 9] FIG. 10 is a rear perspective view showing the inner surface side of the front case according to the embodiment of the present invention, and the periphery of the selection device. [Figure 10] 1A and 1B are perspective views of an indicator bar and a guide member according to an embodiment of the present invention, where FIG. 1A is a perspective view from the rack gear side provided on the indicator member, and FIG. 1B is a perspective view from the opposite side of the rack gear. [Figure 11] 1 is a perspective view of a cross section taken along the line XI-XI of the disaster prevention radio device shown in FIG. 2 according to the embodiment of the present invention. [Figure 12] FIG. 2 is a rear view of the battery box side of the disaster prevention wireless device according to the embodiment of the present invention. [Figure 13] 4 is a perspective view of the periphery of the battery box of the rear case as viewed from the inner surface side according to the embodiment of the present invention. FIG. [Figure 14] 14 is a cross-sectional perspective view of the configuration of the rear case side of the disaster prevention wireless device of FIG. 12 according to the embodiment of the present invention, taken along the XIV-XIV cross section. FIG. [Figure 15] 14 is a cross-sectional view of the disaster prevention wireless device of FIG. 12 according to the embodiment of the present invention, taken along the line XIV-XIV. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the present invention will be described below with reference to Figs. 1 to 15. The disaster prevention radio device 1 shown in Figs. 1 and 2 is a device that can be used as disaster prevention equipment and has a clock function, a function for receiving radio signals from a radio or disaster prevention radio, a lighting function, a power generation function, etc. In the following description of the disaster prevention radio device 1, the side of the handle 12 shown in Fig. 1 will be referred to as the top and the opposite side as the bottom, the side of the speaker 111 will be referred to as the front and the opposite side as the rear. In addition, the left side when looking forward from the rear of the disaster prevention radio device 1 will be referred to as the left, and the opposite side as the right.

[0012] The disaster prevention radio device 1 includes a main body 11 formed in the shape of a rectangular box and a handle 12 formed in the shape of an arched (or U-shaped) curved pillar and connected to the top of the main body 11. The case 10, which is the exterior member of the main body 11 and the handle 12, is made of a resin material and is composed of a front case 2 and a rear case 3. A plurality of slide switches S1 to S4 are provided on the top and left side of the main body 11. Furthermore, dial switches S5 and S6 are provided between slide switches S3 and S4 on the left side of the main body 11. For example, the upper dial switch S5 can set the receiving frequency of the radio signal, and the dial switch S6 can set the volume of the audio output from a speaker 111 provided on the front right side of the disaster prevention radio device 1. Furthermore, push button switches S7 and S8 are provided on the top and right side of the main body 11 (see FIG. 2).

[0013] A cover 112, which is a plate member that is roughly bullet-shaped when viewed from the front, is disposed on the front of the disaster prevention radio device 1. The cover 112 is partially or entirely transparent, and is configured to allow the dial and hands of a clock unit 113 disposed inside the main body 11 to be visible (the configuration of the clock unit 113 is not shown). The clock unit 113 may be configured as a digital clock that displays the time, etc., on a liquid crystal display unit. A channel display unit 114 is also provided on the left front surface of the disaster prevention radio device 1.

[0014] A foldable antenna 115 is provided on the rear side of the top surface of the disaster prevention wireless device 1. The antenna 115 shown in Fig. 1 etc. is in a stored state, but when in use, it can be raised from the main body 11 and adjusted to an appropriate angle or can be stretched or deformed to increase the reception sensitivity of wireless signals.

[0015] The power generation device 116 and the battery box 14 are disposed on the back of the disaster prevention wireless device 1 shown in Fig. 2. A foldable handle portion 116a of the power generation device 116 and a shaft portion 116b to which the handle portion 116a is connected are disposed on the back of the main body portion 11. The handle portion 116a in Fig. 2 is shown housed in a recess provided on the back of the main body portion 11, but during power generation, the handle portion 116a can be raised to the side opposite the recess and rotated around the shaft portion 116b to charge the secondary battery housed in the battery box 14 and activate various functions of the disaster prevention wireless device 1.

[0016] On the right side of the disaster prevention wireless device 1, a light source L that emits illumination light, jacks J1 and J2 to which communication cables can be connected, and a jack J3 to which the power supply cable of the disaster prevention wireless device 1 can be connected are provided.

[0017] Protrusions 117 extending from front to back are provided on the bottom surface of the disaster prevention wireless device 1. The protrusions 117 are arranged parallel to the left and right positions of the main body 11, allowing the disaster prevention wireless device 1 to be placed stably on a placement surface.

[0018] 3 is a rear perspective view of the disaster prevention wireless device 1, omitting the configuration on the rear case 3 side. The disaster prevention wireless device 1 has a flat circuit board 4 that occupies almost the entire interior of the main body 11 in the vertical and horizontal directions. Switch elements 41 to 48 that detect inputs to the switches S1 to S8 are mounted on the circuit board 4.

[0019] The push button switch S8 configured as a switch device includes an operating member 5, a switch element 48, and guide portions 21, 31 formed on the inner surfaces of the front case 2 and the rear case 3 (see also FIG. 6 ). As shown in FIGS. 4( a) and 4(b), the operating member 5 has a short cylindrical operated portion 51 formed on the movement axis O of the operating member 5, a guided portion 52 formed in a flange-like shape around the outer periphery of the operated portion 51, and an operating portion 53 capable of operating the switch element 48. The operated portion 51 protrudes in the direction of the movement axis O on the side opposite to the operating portion 53 (or the switch element 48). The guided portion 52 protrudes in a direction different from the movement axis O (in this embodiment, the vertical direction) and is formed in the shape of an elongated rectangular flat plate. The guided portion 52 has a concave notch 521 provided at an end 52a on the first direction D1 side and an end 52b on the second direction D2 side opposite the first direction D1 side. The notch 521 is cut out in a substantially straight line, but the connecting edge with the ends 52a, 52b is chamfered in a C-shape to widen the width. The guided portion 52 also has a protruding portion 522. The protruding portion 522 is located near the edge in the short direction (a direction perpendicular to the first direction D1 and the second direction D2) on the surface of the guided portion 52 facing the operated portion 51. The guided portion 52 is formed to be wider than the inner diameter of the opening 118 when housed in the case 10, as shown in FIG. 6.

[0020] As shown in FIG. 4(b), the operating portion 53 is provided on the opposite side of the guided portion 52 from the operated portion 51. The operating portion 53 is formed in a substantially rectangular tubular shape. The switch element 48 has an element body 481 and an input piece 482 that is linearly movable relative to the element body 481. The input piece 482 is constantly biased away from the element body 481 by an internal elastic member such as a coil spring (not shown), and is configured so that its movement is restricted at a predetermined distance. The input piece 482 of the switch element 48 is engaged within the operating portion 53 of the operating member 5. Therefore, when the operating member 5 is pressed toward the element body 481, the input piece 482 moves toward the element body 481 via the operating portion 53 against the resilient force of the elastic member. The element body 481 detects the movement of the input piece 482 and transmits an input signal to a control unit (a processor such as a CPU or a microcomputer) (not shown) in the disaster prevention wireless device 1.

[0021] An opening 118 is formed on the right side surface of the case 10, in which the operated part 51 of the operating member 5 is disposed. The opening 118 is formed in a substantially circular shape following the shape of the outer peripheral side surface of the operated part 51. As shown in FIG. 6, an inclined part 118a is provided on the inner edge of the opening 118, where the outer surface side of the case 10 is inclined in a C-shape. The operated part 51 is disposed so as to be movable on a movement axis O located inside the opening 118 during operation.

[0022] 5 and 6, guide portions 21 and 31, which are flat, convex ribs, are provided on the inner surfaces of the outer walls on the right sides of the front case 2 and rear case 3 (case 10), respectively. The guide portions 21 and 31 guide the movement direction of the guided portion 52. The guide portions 21 and 31 are provided on the same plane. The guide portion 21 provided on the front case 2 side has an edge portion 211 that restricts movement of the operating member 5 toward the front case 2. The edge portion 211 corresponds to the side edge of the rib (guide portion 21) erected from the front case 2. The guide portion 31 provided on the rear case 3 side has an edge portion 311 that restricts movement of the operating member 5 toward the rear case 3. The edge portion 311 also corresponds to the side edge of the rib (guide portion 31) erected from the rear case 3. The edge portions 211 and 311 are arranged approximately parallel to each other. The guide portions 21, 31 are provided so as to be engageable with the notched portion 521 of the guided portion 52, and also restrict movement of the operating member 5 in the plate surface direction of the guide portions 21, 31. Therefore, the guide portions 21, 31 can guide the operating member 5 so as to be able to appear and disappear from the opening 118 in the direction of the movement axis O.

[0023] Furthermore, the guide portion 31 has a restricting portion 312 on the pressing direction side (inside the case 10) parallel to the movement axis O of the operating member 5. The restricting portion 312 protrudes toward the movement axis O beyond the edge portion 311 of the guide portion 31. In other words, the restricting portion 312 protrudes toward the movement axis O of the operating member 5 beyond the notch portion 521, and is configured to be able to restrict movement of the operating member 5 in the pushing direction by abutting against the surface of the guided portion 52 on the operating portion 53 side.

[0024] Here, the operation of the push button switch S8 (switch device) will be described. In FIG. 6, the operating member 5 is constantly urged by the input piece 482 with a predetermined force toward the opening 118. When the user presses the operating member 5 into the inside of the case 10, the operating member 5 moves along the movement axis O. The operating member 5 is configured so that it can be housed further inside the case 10 than the opening 118 when pressed. The movement of the operating member 5 when pressed is restricted by the guided portion 52 coming into contact with the restricting portion 312. When the user's pressing operation is released, the operating member 5 moves toward the opening 118 due to the elastic force of the input piece 482.

[0025] With the above-described configuration of the push button switch S8 (switch device), the operating member 5 is guided by the guide portions 21 and 31 provided inside the case 10, allowing it to move stably along the movement axis O that is coaxial with the central axis of the opening 118. Furthermore, by being guided by the guide portions 21 and 31, the operating member 5 is prevented from contacting the inner circumferential surface of the opening 118, preventing deformation of the opening diameter of the opening 118 due to wear, etc., and allowing smooth, continuous operation. Furthermore, because the operating member 5 can move stably along the movement axis O, there is no need to widen the opening diameter of the opening 118 more than necessary, and this prevents damage to the appearance of the area around the push button switch S8.

[0026] Returning to Fig. 3, the disaster prevention radio device 1 has a channel (receiving frequency) selector 13 on the left side of the case 10. The selector 13 includes a dial switch S5, an index member 7, a guide portion (first guide portion 25 and second guide portion 92 shown in Figs. 8 and 9(b)) that guides the movement of the index member 7, and the case 10. The case 10 accommodates the index member 7, the guide portion (first guide portion 25 and second guide portion 92), and the switch element 45 inside, and is provided so that a portion of the operating member 6 connected to the switch element 45 of the dial switch S5 is exposed to the outside from the left side of the case 10.

[0027] The dial switch S5 includes an operating member 6 and a switch element 45 that detects the amount of rotation of the operating member 6. The operating member 6 includes a rotary shaft 61 connected to the switch element 45 and a circular, plate-shaped dial knob 62 connected to the rotary shaft 61 and having a flat knurled outer periphery. The switch element 45 is connected to one end of the rotary shaft 61, and the dial knob 62 is connected to the other end of the rotary shaft 61. The operating member 6 includes a pinion gear 611 on the rotary shaft 61. The pinion gear 611 is connected to and meshes with a rack gear 711 of the index member 7. Therefore, when a user rotates the dial knob 62 of the dial switch S5, the position of the index member 7 can be moved up or down. The switch element 45 can detect the movement of the index member 7 by the operating member 6.

[0028] 7 and 8, on the front side (front case 2 side) of the circuit board 4, a retaining plate 8, a guide member 9, and an indicator member 7 are arranged in this order from the rear to the front of the disaster prevention wireless device 1. The indicator member 7 is restricted from moving in the front-rear and left-right directions by the front case 2 and the guide member 9, and is provided so as to be slidable in the up-down direction.

[0029] The configuration of the front case 2 will be described with reference to Figure 9. The front case 2 has cutouts 22 on its left side surface that engage with the operating members of the slide switches S3 and S4 and the dial switches S5 and S6. A restricting rib 221 that is arc-shaped when viewed from the left side protrudes from the outer surface of the front case 2 corresponding to the dial switches S5 and S6. The rotatable dial knob 62 of the dial switch S5 (and similarly for the dial switch S6) has a restricted rib (not shown) on the outer surface of the front case 2, and is configured to be rotatable within a preset angular range by the restricted rib abutting against the end of the restricting rib 221. In addition, a plurality of ribs 23 are formed on the inner surface of the left side surface of the front case 2.

[0030] As shown in FIG. 8 , the front case 2 has a groove 24, which is rectangular in cross section and made up of a side plate 241 and a bottom plate 242, on the front side of the front case 2 and to the right of the rib 23. The side plate 241 and the bottom plate 242 are arranged approximately vertically. The groove 24 extends in the up-down direction with approximately the same cross-sectional shape. The bottom plate 242 is provided with an elongated slit-like opening 242a extending in the up-down direction parallel to the groove 24. The cover 112 described above is also arranged to cover the groove 24. The cover 112 is also provided with a window 112a, which is a slit-like opening extending in the up-down direction. The window 112a is arranged in front of the groove 24 and is long enough to allow the position of the indicator portion 73 to be visually confirmed within the movable range of the indicator member 7.

[0031] As shown in Fig. 9, the bottom plate 242 has a first guide portion 25 that is linear and extends vertically on the inner side (rear side of the disaster prevention wireless device 1) of one bottom plate portion 242b separated by the opening 242a. The first guide portion 25 has a groove portion 251 surrounded by ribs 251a arranged in parallel, and a support surface 252 located rearward of the groove portion 251 (toward the tip of the rib 251a). The groove portion 251 is provided at a position corresponding to the main body portion 11 in the vertical direction. On the other hand, the support surface 252 is provided at a position corresponding to the main body portion 11 and the handle portion 12 in the vertical direction.

[0032] A cutout 251b is provided in a part of one of the ribs 251a located on the left side of Fig. 9. The front case 2 is open in the front and rear directions at a position corresponding to this cutout 251b, and has an engaging recess (details not shown) formed therein for fixing the cover 112 (see also Fig. 1) installed on the front side. For this reason, the cutout 251b may be omitted if no cover 112 is provided or depending on the method for fixing the cover 112.

[0033] The support surface 252 is formed on the same plane by the tip surfaces of the ribs 251a and an inner wall 252a provided within the handle portion 12. The inner wall 252a is surrounded by left and right inner walls 252b and 252c that stand upright in a direction substantially perpendicular to the inner wall 252a. A restricting portion 252d, which is a protruding portion that protrudes from the upper end position of the support surface 252, is provided from the inner wall 252a. In other words, the restricting portion 252d is located at the upper end of the first guide portion 25.

[0034] Returning to Fig. 8, a sheet-like indexed portion 243 is disposed on the front side of the other bottom plate portion 242c of the bottom plate 242, separated by the opening 242a. The indexed portion 243 displays selectable channels (receiving frequencies) in the vertical direction on the disaster prevention wireless device 1. As shown in the front view of portion A around the channel display unit 114 in Fig. 1, the user can visually confirm the setting value 243a of the channel (receiving frequency) displayed on the indexed portion 243 from the front side of the disaster prevention wireless device 1 through the window portion 112a. The indexed portion 243 is fixed to the bottom plate portion 242c by any method.

[0035] As shown in FIG. 9, bosses having female screw portions 244 for fixing the guide member 9 are provided at two positions, upper and lower, on the inner side (rear side) of the bottom plate portion 242c.

[0036] FIG. 10(a) is a perspective view of the indicator member 7 and the guide member 9 as viewed from the rack gear 711 side. FIG. 10(b) is a perspective view of the indicator member 7 and the guide member 9 as viewed from the opposite side of the rack gear 711. The indicator member 7 includes a linear rod-shaped main body 71, a second guided portion 72 connected to the right side surface (second surface) of the main body 71, which is opposite the direction of movement of the main body 71, and an L-shaped indicator portion 73 connected to the right side surface of the main body 71 so as to be aligned with the second guided portion 72. The indicator member 7 is formed of the same resin material as the case 10 (front case 2 and rear case 3). Alternatively, either the case 10 or the indicator member 7 may be made of a material with higher rigidity than the other, such as a metal material. The main body 71 includes a rack gear 711 on the first direction D1 side. The main body 71 also includes a first guided portion 712 on the opposite side (first surface) of the rack gear 711. Therefore, the indicator member 7 is formed with a guided portion including a first guided portion 712 provided on the first surface side and a second guided portion 72 provided on the second surface side different from the first guided portion 712. The first guided portion 712 is formed by ribs 712a arranged in two parallel positions. Furthermore, a protruding portion having a width shorter than the width of the main body portion 71 protrudes from one end side in the longitudinal direction of the main body portion 71, and an abutting portion 713 is provided at the tip of this protruding portion. The abutting portion 713 is formed in a flat surface shape.

[0037] The second guided portion 72 is formed in the shape of a flat flange. The indicator portion 73 extends toward the first guided portion 712 with respect to the main body 71, and has a rod-shaped tip portion 731 formed in a direction substantially perpendicular to the opposite side of the first guided portion 712. That is, the indicator member 7 has the second guided portion 72 provided on the base end side of the indicator portion 73.

[0038] The guide member 9 is formed in a long rod shape and is arranged alongside the indicator member 7. The guide member 9 has a screw hole 91 through which the screw member 90 shown in FIG. 8 can be inserted. The screw member 90 is fastened to the female screw portion 244 of the front case 2, thereby fixing the guide member 9 to the front case 2. The guide member 9 also has a second guide portion 92 in the shape of a flat flange that protrudes from the left side surface (toward the indicator member 7). The surface of the second guide portion 92 facing the front case 2 (the fastening direction side) is formed as a guide surface 921 that guides the second guided portion 72 of the indicator member 7. The second guided portion 72 can slidably come into contact with a protruding portion 921a that is semicircular in cross section and provided on the guide surface 921 side of the second guide portion 92 (see also FIG. 8). The protruding portion 921a is formed along the longitudinal direction of the guide member 9. Furthermore, a restricting portion 921b that protrudes further than the protruding portion 921a is provided on the guide surface 921. The restricting portion 921b comes into contact with an end of the indicator member 7 that moves along the guide surface 921 of the second guide portion 92, and restricts the movement of the indicator member 7 to one side (the lower side of the disaster prevention wireless device 1) to set the movement end position.

[0039] 8, the recessed groove 251 of the first guide portion 25 slidably engages and supports the first guided portion 712, while restricting movement of the indicator member 7 in the first direction d1. The second guide portion 92 slidably supports the second guided portion 72, while restricting movement of the indicator member 7 in a second direction d2 opposite to the first direction d1.

[0040] The retaining plate 8 shown in FIG. 7 is formed in a flat plate shape and is disposed between the circuit board 4 and the indicator member 7 (see also FIG. 11). The retaining plate 8 is formed so as to cover most of the movable area of ​​the indicator member 7, and a partial protrusion 8a is disposed within the handle portion 12. By disposing the retaining plate 8 between the circuit board 4 and the indicator member 7, it is possible to prevent the rack gear 711 from interfering with elements mounted on the circuit board 4 (for example, legs protruding on the side opposite to the mounting surface of the switch elements 43 and 44) ​​even when the indicator member 7 swings as it moves (see FIG. 11). The retaining plate 8 has a plurality of openings 81 to 83 arranged in a row as shown in FIG. 7. The opening 81 is formed by cutting out a side of the retaining plate 8 and is provided as a non-interference portion to avoid the meshing position between the pinion gear 611 and the rack gear 711. In addition, openings 82 and 83 are provided as non-interference portions to avoid interference with legs protruding from the opposite side of the mounting surface of switch elements 45 and 46 mounted on circuit board 4 shown in Figure 3 (detailed positional relationship is not shown).

[0041] Next, the operation of the selection device 13 will be described. The user can move the indicator member 7 up and down by rotating the dial knob 62. The user can recognize the currently selected setting value 243a from the position on the indexed portion 243 indicated by the indicator portion 73 of the indicator member 7 (see also the front view of portion A in FIG. 1). For example, if the setting selected by the selection device 13 is the channel (receiving frequency) of the radio signal received by the disaster prevention radio device 1, the indexed portion 243 displays the channel number or receiving frequency value as the setting value 243a in ascending or descending order. The user can recognize the current setting value from the position on the setting value 243a indicated by the indicator portion 73. In addition, the switch element 45 corresponding to the dial switch S5 detects the input value (amount of rotation) corresponding to the setting value 342a indicated by the indicator portion 73. The disaster prevention radio device 1 can perform processing according to the input value (amount of rotation) detected by the switch element 45 using a control unit (not shown).

[0042] The downward movable end position of the indicator member 7 is restricted and set by one end of the second guided portion 72 of the indicator member 7 coming into contact with the restricting portion 921b. The upward movable end position of the indicator member 7 is restricted and set by the contact portion 713 of the indicator member 7 coming into contact with the restricting portion 252d of the front case 2. A part of the indicator member 7 is disposed within the handle portion 12 at one movable end position of the indicator member 7 (in this embodiment, the position where the contact portion 713 of the indicator member 7 comes into contact with the restricting portion 252d).

[0043] As described above, the selecting device 13 described in this embodiment can be manufactured using a simple process because the indicator member 7 can be made from the same material as the case 10 (front case 2 and rear case 3) of the disaster prevention radio device 1 and the other components that make up the disaster prevention radio device 1. Furthermore, because the indicator member 7 is also disposed inside the handle portion 12 at one of the movable end positions, the range of movement can be widened while miniaturizing the main body portion 11. Therefore, it is possible to configure a disaster prevention radio device 1 and a selecting device 13 that have a compact disaster prevention radio device 1 and a large range of the channel display portion 114, making it easy to see the setting value 243a.

[0044] Next, we will explain the battery box 14 provided in the disaster prevention wireless device 1. The disaster prevention wireless device 1 is provided with the battery box 14, which includes a main body 11 (second member) and a cover member 32 (first member), on the rear side shown in Fig. 2. This battery box 14 includes a release portion 321 (first release portion) provided in the cover member 32 and a release portion 33 (second release portion) provided in the main body 11 (rear case 3), forming a double locking mechanism.

[0045] The rear case 3 has a recessed bottomed storage compartment 34 on the rear side that can store multiple batteries BT (see FIG. 15). A plate-shaped lid member 32 is connected to the main body 11 on the rear side of the storage compartment 34 by a pivot shaft 323 so as to be openable and closable.

[0046] A release portion 321 is provided on the tip side of the cover member 32 opposite the pivot shaft 323. As shown in the cross-sectional view (side view) of FIG. 15, the release portion 321 is formed in the shape of a generally U-shaped cantilever spring plate that protrudes from the cover member 32 in the closing direction. Therefore, the release portion 321 is connected to the pivot shaft 323 of the cover member 32 so as to be able to resiliently move in the radial direction. The release portion 321 also has an operation claw 322 at its tip for performing the release operation of the release portion 321. As shown in FIG. 12, the operation claw 322 is formed with a width shorter than the width (left-right width) of the release portion 321. An inclined portion 322a is formed at the tip on the outer surface side of the operation claw 322. The release portion 321 also has engaged portions 321a on both left and right shoulders on the base end side of the operation claw 322 (see also FIG. 5). The engaged portions 321a are formed in a stepped shape by being cut out in an L shape.

[0047] The rear case 3 also has a recess 35 that is a depression capable of accommodating the release portion 321 and has an engaging portion 351 formed on an inner wall 35a. The engaging portion 351 is formed as a protrusion. The engaging portion 351 formed on the rear case 3 (main body portion 11) is configured to be able to engage with the engaged portion 321a.

[0048] As shown in FIG. 12 , the release portion 33 is formed in the shape of a rectangular cantilever spring plate by cutting out a portion of the rear case 3 (main body portion 11). Therefore, the release portion 33 is provided so as to be resilient relative to the rear case 3. The release portion 33 extends toward the operating claw 322 of the cover member 32. That is, the release portion 33 and the release portion 321 are arranged so that their tip ends partially overlap and face each other. The release portion 33 has a protruding portion 331 that protrudes toward the outer surface of the rear case 3, and a protruding portion 332 that is arranged closer to the tip of the release portion 33 than the protruding portion 331. The protruding portion 331 is formed in the shape of an elongated rectangle that is long in the width direction of the release portion 33 in a rear view, and an inclined portion 331a is provided on the base end side of the release portion 33. The protrusion 331 is arranged parallel to the operation claw 322 with a gap S (see the enlarged view of part B in FIG. 15) between the protrusion 331 and the tip of the operation claw 322 set to be narrow (for example, narrower than the thickness of the user's finger). In addition, a marker 331b that is recessed in a hemispherical concave shape is formed on the top surface (end surface) of the protrusion 331.

[0049] The protrusion 332 is formed in a rectangular shape that is long in the width direction of the release portion 33 in the rear view of FIG. 12. Furthermore, as shown in the enlarged view of part B in FIG. 15, the protrusion 332 is gently inclined toward the base end of the release portion 33. In this embodiment, a portion of the tip in the width direction of the release portion 33 abuts against the operation claw 322, but the release portion 33 may abut against the operation claw 322 over the entire width direction. That is, at least a portion of the tip in the width direction of the release portion 33 abuts against the operation claw 322. Furthermore, the release portion 33 is provided in a recess 36 recessed from the outer surface 3a of the rear case 3, and when the cover member 32 is in the closed state, the protrusions 331, 332, and the operation claw 322 are positioned in recessed positions relative to the outer surface 3a of the rear case 3.

[0050] 13, the release portion 33 has a columnar restricted protrusion 333 formed in a hollow, approximately cylindrical shape on the inside of the main body 11 (the side opposite to the surface on which the protrusion 331 is provided). The restricted protrusion 333 extends toward the inner surface of the opposing front case 2. At the tip of the restricted protrusion 333, a protrusion 333a is formed that protrudes in a semi-cylindrical shape on the tip side of the release portion 33. Therefore, the end face of the protrusion 333a is formed in a semi-arc shape.

[0051] As shown in FIG. 14 , the front case 2 has a columnar restricting protrusion 26 formed in a T-shape in cross section on its inner surface. The restricting protrusion 26 extends toward the inner surface of the opposing rear case 3. The restricting protrusion 26 includes a flat horizontal portion 261 and a vertical portion 262 that protrudes from a widthwise intermediate position of the horizontal portion 261 toward the tip of the release portion 33 (i.e., the lower side of the disaster prevention wireless device 1). A triangular plate-shaped reinforcing rib 263 is provided on the side of the restricting protrusion 26 opposite the vertical portion 262. The restricting protrusion 26 is disposed so as to penetrate the T-shaped opening 49 of the circuit board 4. The tip of the restricting protrusion 26 is located closer to the restricted protrusion 333 than the circuit board 4. As shown in FIG. 15 , the restricting protrusion 26 substantially faces the restricted protrusion 333. The restricting protrusion 26 and the restricted protrusion 333 are disposed parallel to each other on different straight lines.

[0052] Next, the operation of attaching and detaching the lid member 32 of the battery box 14 will be described. The battery box 14 shown in Fig. 15 is fixed in a state where the engaging portion 351 and the engaged portion 321a are engaged and the lid member 32 covers the storage portion 34. The gap S is set to a narrow width, and the release operation of the release portion 321 (first release portion) for the operating claw 322 is hindered by the protrusion 331, which blocks the entry of a finger or the like, preventing the user from unintentionally releasing the release portion 321. In this way, the release portion 33 is resiliently biased to a position that hinders the release operation for the release portion 321.

[0053] To open the cover member 32, first, the release portion 33 is pushed down toward the main body 11 against the elastic force. As a result, as indicated by the two-dot chain line, the tip side of the release portion 33 moves downward with the base end serving as a fulcrum. The main body 11 has the restricting protrusion 26 at a position where it can abut against the restricted protrusion 333 of the released release portion 33. Therefore, the movement of the release portion 33 is restricted by the abutment of the restricted protrusion 333 and the restricting protrusion 26. Therefore, the pushing amount of the release portion 33 can be set within a predetermined allowable range to prevent damage to the release portion 33. In the configuration of this embodiment, the protruding portion 333a of the restricted protrusion 333 and the vertical portion 262 of the restricting protrusion 26 can mainly abut against each other. When the release portion 33 is pushed down, the gap S is widened to a width (or space) large enough to allow the tip of a finger to be inserted under the operating claw 322.

[0054] When the user performs a release operation by pressing operating claw 322 toward cover member 32 (toward pivot shaft 323) against the elastic force of release portion 321, release portion 321 can be bent until the engagement between engaged portion 321a and engagement portion 351 is released. This releases the lock between cover member 32 and main body 11, allowing cover member 32 to be rotated around pivot shaft 323 to enter the open state.

[0055] To close the lid member 32, the lid member 32 is rotated so as to be pushed toward the main body 11. As a result, portions of both widthwise edges of the release portion 321 come into contact with the engagement portion 351 and bend. When the release portion 321 climbs over the engagement portion 351 at the position of the engaged portion 321a, it is urged against the inner wall 35a on the engaging portion 351 side, and the engagement portion 351 and the engaged portion 321a are engaged with each other. This allows the lid member 32 and the main body 11 to be easily fixed together.

[0056] In the above, in this embodiment, a battery box 14 (locking mechanism) has been described, which includes a cover member 32 (first member) having an engaged portion 321a, a main body 11 (second member) having an engaging portion 351 engageable with the engaged portion 321a, a release portion 321 (first release portion) that releases the engagement between the engaged portion 321a and the engaging portion 351 through a release operation, and a release portion 33 (second release portion) that is resiliently biased to a position that inhibits the release operation of the release portion 321. The cover member 32 and the main body 11 can be fixed together by a double locking mechanism using the release portion 321 and the release portion 33. Therefore, a disaster prevention wireless device 1 can be configured with a locking mechanism (battery box 14) that is easily detachable while preventing unintentional release.

[0057] Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment and can be implemented with various modifications. For example, in this embodiment, the guide portions 21 and 31 are provided directly on the case 10, but the guide portions may be formed of any member housed within the case 10.

[0058] The restricting portion 312 described in this embodiment may be provided on at least one of the guide portion 21 and the guide portion 31, for example, on both the guide portion 21 and the guide portion 31.

[0059] Furthermore, the operation unit 53 capable of operating the switch element 48 is not limited to the configuration shown in this embodiment, and may have any configuration depending on the configuration of the switch element 48.

[0060] In addition, in this embodiment, the curved columnar handle portion 12 is described as being connected to the main body portion 11 at the left and right positions and curved in a U-shape, but the handle portion 12 may be configured so that one end side is connected to the main body portion 11 and the other end side is not connected to the main body portion 11. Furthermore, the indicator member 7 may be configured so that the entire indicator member 7 is disposed within the handle portion 12 at one of the movable end positions.

[0061] Furthermore, in this embodiment, the case 10 accommodates the indicator member 7, the guide portion (first guide portion 25 and second guide portion 92), and the switch element 45 therein, and a portion of the operating member 6 connected to the switch element 45 is exposed to the outside of the case 10; however, any of the indicator member 7, the guide portion (first guide portion 25 and second guide portion 92), the operating member 6, and the switch element 45 may be configured so that part or all of them are accommodated inside the case 10.

[0062] In addition, in this embodiment, an example has been described in which the device equipped with the selection device 13 is the disaster prevention radio device 1, but the selection device 13 can be applied to devices having other functions. For example, the selection device 13 may be applied to a device that can select any function or setting in addition to selecting a channel (receiving frequency).

[0063] Furthermore, in the battery box 14, the release portion 321 (first release portion) may be provided on the main body 11 (second member) side. In this case, the release portion 321 may be formed to have an engaged portion and be resiliently resilient, and configured to be engageable with and detachable from an engaging portion provided on the lid member 32 side. Furthermore, the release portion 33 (second release portion) may be provided on the lid member 32 (first member) side.

[0064] Alternatively, the engaging portion 351 may be configured as a recess, and the engaged portion 321a may be configured as a protrusion.

[0065] Furthermore, the gap S that can be formed between the release portion 321 and the release portion 33 is formed by the gap between the protrusion 331 protruding from the outer surface of the release portion 33 and the operating claw 322, but by providing a recess at the tip of the release portion 33 and positioning the operating claw 322 in this recess, a gap S that blocks the entry of fingers, etc. can be formed by the gap between the inner wall of the recess and the operating claw 322.

[0066] Furthermore, in this embodiment, the case 10 has been described as an exterior member, but it may be configured as a case for other positions or functional parts, such as being provided as an interior member. [Explanation of symbols]

[0067] 1 Disaster prevention radio equipment 2 Front case 3 Rear case 3a Outer surface 4 Circuit board 5 Operation member 6 Operating member 7 Index member 8 Retaining plate 8a Protrusion 9 Guide member 10 Case 11 main body 12 handle 13 selection device 14 battery box 21 guide portion 22 notch portion 23 Rib 24 Groove 25 First guide portion 26 Restriction protrusion 31 guide portion 32 cover member 33 Release section 34 Storage section 35 Recess 35a Inner wall 36 recessed portion 41-48 switch element 49 Opening 51 Operated part 52 Guided portion 52a End 52b End part 53 Operation part 61 Rotating shaft 62 Dial knob 71 main body portion 72 second guided portion 73 Index section 81~83 Aperture 90 Screw member 91 Screw hole 92 Second guide part 111 Speaker 112 Cover 112a Window section 113 Clock section 114 Channel display 115 Antenna 116 power generating device 116a handle portion 116b Shaft 117 Projection 118 Opening 118a Slope 211 Edge 221 Control rib 241 Side plate 242 Bottom plate 242a Opening 242b Bottom plate part 242c Bottom plate part 243 Indexed part 243a Setting value 244 Female thread 251 groove portion 251a rib 251b Notch 252 Support surface 252a Inner wall 252b Inner wall 252c Inner wall 252d Regulation part 261 Horizontal section 262 Vertical section 263 Reinforcing rib 311 Edge 312 Regulation Department 321 Release Department 321a Engaged part 322 Operation claw 322a Inclined portion 323 Rotating shaft 331 Projection part 331a Slanted part 331b marker 332 protrusion 333 Restricted projection 333a Projection 342a Setting value 351 Engagement part 481 Element body 482 Input piece 521 Notch 522 Protrusion 611 Pinion gear 711 Rack gear 712 First guided portion 712a Rib 713 Contact part 731 Tip part 921 Guide surface 921a Protrusion 921b Regulatory Department BT battery D1 first direction D2 Second direction d1 First direction d2 Second direction J1~J3 jack L Light source O Moving axis S Gap S1~S4 Slide switch S5, S6 Dial switch S7, S8 Push button switch

Claims

1. a first member having an engaged portion; a second member having an engaging portion engageable with the engaged portion; a first release portion provided on the first member and configured to release the engagement between the engaged portion and the engaging portion by a release operation; a second release portion provided on the second member and resiliently biased to a position that inhibits a release operation for the first release portion; Equipped with the first member is connected to the second member by a rotating shaft at an end opposite to the end where the first release portion is provided so as to be openable and closable; the first release portion resiliently connects the engaged portion to the first member and has an operation claw for performing a release operation between the engaged portion and the engaging portion, the second release portion is formed in a spring plate shape and is resiliently connected to the second member, and has a protruding portion whose tip end is in contact with the operation claw and is arranged in parallel to the operation claw so as to narrow a gap between the operation claw and the protruding portion; By pushing the second release portion into the second member, the gap between the protrusion and the operating claw is widened, thereby enabling the operating claw to perform an operation to release the engagement between the engaged portion and the engaging portion. A locking mechanism characterized by:

2. the first release portion is formed in a U-shape and has the engaged portion on a base end side of the operating claw, an accommodation portion that is a recess that can accommodate the first release portion and has the engagement portion formed on an inner wall; 2. The locking mechanism according to claim 1.

3. a first member having an engaged portion; a second member having an engaging portion engageable with the engaged portion; a first release portion provided on the first member and configured to release the engagement between the engaged portion and the engaging portion by a release operation; a second release portion provided on the second member and resiliently biased to a position that inhibits a release operation for the first release portion; Equipped with the first member is connected to the second member by a rotating shaft at an end opposite to the end where the first release portion is provided so as to be openable and closable; the first release portion resiliently connects the engaged portion to the first member and has an operation claw for performing a release operation between the engaged portion and the engaging portion, the second release portion is formed in a spring plate shape and is resiliently connected to the second member, and has a protruding portion whose tip end is in contact with the operation claw and is arranged in parallel to the operation claw so as to narrow a gap between the operation claw and the protruding portion; A battery box characterized by being equipped with a locking mechanism that widens the gap between the protrusion and the operating claw by pushing the second release portion into the inside of the second member, thereby enabling the operating claw to disengage the engaged portion from the engaging portion.

4. a cover member having an engaged portion; a main body portion having an engaging portion that can engage with the engaged portion; a first release portion provided on the cover member and configured to release the engagement between the engaged portion and the engaging portion by a release operation; a second release portion provided on the main body portion and resiliently biased to a position that inhibits a release operation for the first release portion; Equipped with the cover member is connected to the main body by a rotating shaft at an end opposite to the end where the first release portion is provided so as to be openable and closable; the first release portion resiliently connects the engaged portion to the cover member and has an operation claw for performing a release operation between the engaged portion and the engaging portion, the second release portion is formed in a spring plate shape and is resiliently connected to the main body portion, and has a protruding portion whose tip end is in contact with the operation claw and is arranged in parallel to the operation claw so as to narrow a gap between the operation claw and the protruding portion; A disaster prevention radio device characterized in that by pushing the second release portion into the inside of the main body portion, the gap between the protrusion and the operating claw is widened, making it possible to use the operating claw to disengage the engaged portion from the engaging portion.

5. the second release portion is formed on the main body portion and has a columnar restricted protrusion on the inner side of the main body portion, the main body portion has a restricting protrusion at a position capable of coming into contact with the restricted protrusion of the second release portion when the release operation is performed; 5. The disaster prevention radio device according to claim 4.

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