JP2022172532A - Lock mechanism, battery box, and disaster prevention wireless device - Google Patents

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 The present invention relates to a lock mechanism, a battery box, and an emergency wireless device.

The prior art discloses dual locking structures that prevent unintentional disengagement of the two members. For example, Patent Literature 1 discloses a battery box lid that is configured to disengage by inserting a needle-like body into a small hole that penetrates the main body above the engaging portion with the main body. is disclosed.

Japanese Patent Application Laid-Open No. 2001-68082

However, in the structure as disclosed in Patent Document 1, it is necessary to use a needle-like body to release the engagement of the lid, and the releasing operation is complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a lock mechanism, a battery box, and a disaster prevention wireless device that can be easily attached and detached while preventing unintended unlocking.

A lock mechanism of the present invention includes a first member having an engaged portion, a second member having an engaging portion that can be engaged with the engaged portion, and one of the first member and the second member. a first releasing portion provided to release the engagement between the engaged portion and the engaging portion by a releasing operation; and the first releasing portion provided to the other one of the first member and the second member. and a second release portion that is elastically biased to a position that hinders a release operation on the portion.

The battery box of the present invention includes a first member having an engaged portion, a second member having an engaging portion that can be engaged with the engaged portion, and one of the first member and the second member. a first releasing portion provided to release the engagement between the engaged portion and the engaging portion by a releasing operation; and the first releasing portion provided to the other one of the first member and the second member. and a second release portion that is elastically biased to a position that hinders a release operation on the portion.

A disaster prevention wireless device of the present invention includes a lid member having an engaged portion, a body portion having an engaging portion that can be engaged with the engaged portion, and provided on one of the lid member and the body portion. a first releasing portion for releasing the engagement between the engaged portion and the engaging portion by a releasing operation; and a second releasing portion resiliently biased to the obstructing position.

According to the present invention, it is possible 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.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front perspective view of the disaster-prevention radio|wireless apparatus which concerns on embodiment of this invention. It is a back perspective view of the disaster-prevention radio|wireless apparatus which concerns on embodiment of this invention. It is the back perspective view which abbreviate|omitted the structure by the side of the rear case of the disaster prevention radio|wireless apparatus which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows an operating member and a switch element according to an embodiment of the present invention, where (a) is a perspective view seen from the operating member side and (b) is a perspective view seen from the switch element side; 1 is a cross-sectional perspective view of a switch device according to an embodiment of the present invention, with a part omitted, viewed from the inside of a case; FIG. 4 is a cross-sectional view showing the disaster prevention wireless device according to the embodiment of the present invention cut along the VI-VI cross-sectional position around the switch device in FIG. 3; FIG. 3 is a rear perspective view showing the periphery of the selection device according to the embodiment of the present invention, omitting the configuration on the rear case side; FIG. 8 is a cross-sectional view VIII-VIII of the selection device of FIG. 7 according to an embodiment of the present invention; FIG. 4 is a rear perspective view showing the inside of the front case around the selection device according to the embodiment of the present invention; 1 is a perspective view of an index bar and a guide member according to an embodiment of the present invention, where (a) is a perspective view seen from the side of a rack gear provided on the index member, and (b) is a perspective view seen from the opposite side of the rack gear; It is a diagram. FIG. 3 is a cross-sectional perspective view taken along line XI-XI of the disaster prevention wireless device shown in FIG. 2 according to the embodiment of the present invention; It is a rear view of the battery box side of the disaster prevention radio|wireless apparatus which concerns on embodiment of this invention. FIG. 4 is a perspective view of the periphery of the battery box of the rear case according to the embodiment of the present invention, viewed from the inner surface side; FIG. 13 is a cross-sectional perspective view of the configuration of the rear case side of the disaster prevention wireless device of FIG. 13 is a XIV-XIV cross-sectional view of the disaster prevention wireless device of FIG. 12 according to the embodiment of the present invention; FIG.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 15. FIG. The disaster prevention wireless device 1 shown in FIGS. 1 and 2 is a device that can be used as a disaster prevention device having a clock function, a radio signal reception function such as a radio or disaster prevention radio, a lighting function, a power generation function, and the like. In the following description of the disaster prevention wireless device 1, the side of the handle portion 12 shown in FIG. Also, the left side of the disaster prevention wireless device 1 viewed from the rear to the front is left, and the opposite side is right.

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

A cover 112 , which is a plate member having a substantially cannonball-shaped shape when viewed from the front, is arranged on the front surface of the disaster prevention wireless device 1 . The cover 112 is partly or wholly transparent, and is configured so that the dial and hands of the clock portion 113 arranged inside the main body portion 11 can be visually recognized (the configuration of the clock portion 113 is not possible). shown). Note that the clock unit 113 may be configured as a digital clock that displays time and the like on a liquid crystal display unit. A channel display unit 114 is provided on the left front surface of the disaster prevention wireless device 1 .

A foldable antenna 115 is provided on the rear side of the upper surface of the disaster prevention wireless device 1 . Although the antenna 115 shown in FIG. 1 and the like shows a retracted state, the antenna 115 can be lifted from the main body 11 and adjusted to an appropriate angle or stretched and deformed so as to increase the reception sensitivity of radio signals during use. can.

A power generation device 116 and a battery box 14 are arranged on the rear surface of the disaster prevention wireless device 1 shown in FIG. A foldable handle portion 116 a of the power generation device 116 and a shaft portion 116 b to which the handle portion 116 a is connected are arranged on the back surface of the main body portion 11 . 2 shows a state in which the handle portion 116a is accommodated in a recess provided on the back surface of the main body portion 11, but during power generation, the handle portion 116a is raised to the opposite side of the recess and rotated around the shaft portion 116b. By doing so, the secondary battery housed in the battery box 14 can be charged, and various functions of the disaster prevention wireless device 1 can be driven.

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

A projecting portion 117 extending from front to back is provided on the bottom surface of the disaster prevention wireless device 1 . The protruding portions 117 are arranged parallel to each other on the right and left sides of the body portion 11, so that the disaster prevention wireless device 1 can be stably mounted on the mounting surface.

FIG. 3 is a rear perspective view of the disaster prevention wireless device 1 omitting the configuration of the rear case 3 side. The disaster prevention wireless device 1 has a flat circuit board 4 over substantially the entire interior of the main body 11 in the vertical and horizontal directions. The circuit board 4 is mounted with switch elements 41 to 48 for detecting inputs to the switches S1 to S8.

A push button switch S8 configured as a switch device includes an operation member 5, a switch element 48, and guide portions 21 and 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 includes a short cylindrical operated portion 51 formed on the movement axis O of the operating member 5, and an outer circumference of the operated portion 51. It has a guided portion 52 formed like a flange, 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 is provided in the shape of an elongated rectangular flat plate protruding in a direction different from the movement axis O (vertical direction in this embodiment). Further, the guided portion 52 has a concave notch portion 521 provided at the end portion 52a on the first direction D1 side and the end portion 52b on the second direction D2 side opposite to the first direction D1 side. The cutout portion 521 is cut out in a substantially straight line, but the connection edge portion with the end portions 52a and 52b is chamfered into a chamfered shape and widened. Further, the guided portion 52 has a projecting portion 522 . The protruding portion 522 is positioned near the edge in the short direction (the direction perpendicular to the first direction D1 and the second direction D2) of the surface of the guided portion 52 on the operated portion 51 side. The guided portion 52 is formed wider than the inner diameter of the opening portion 118 in the state accommodated in the case 10 as shown in FIG.

As shown in FIG. 4B, the operating portion 53 is provided on the side of the guided portion 52 opposite to the operated portion 51 side. The operating portion 53 is formed in a substantially square tubular shape. The switch element 48 has an element body 481 and an input piece 482 which is provided to be directly movable with respect to the element body 481 . Although not shown, the input piece 482 is always urged in the separation direction from the element main body 481 by an internal elastic member such as a coil spring, and is configured to be restricted in movement at a predetermined separation position. The input piece 482 of the switch element 48 is engaged with the operating portion 53 of the operating member 5 . Therefore, when the operation member 5 is pushed toward the element body 481 side, the input piece 482 moves toward the element body 481 side through the operation portion 53 against the elastic force of the elastic member. The element main body 481 can detect the movement of the input piece 482 and cause the control section (processor such as a CPU or a microcomputer) (not shown) in the disaster prevention wireless device 1 to detect the input signal.

The right side surface of the case 10 is formed with an opening 118 in which the operated portion 51 of the operating member 5 is arranged. The opening 118 is formed in a substantially circular shape following the shape of the outer peripheral side surface of the operated portion 51 . As shown in FIG. 6, the inner edge of the opening 118 is provided with an inclined portion 118a in which the outer side surface of the case 10 is inclined in a C-plane shape. The operated portion 51 is arranged so as to be movable on a movement axis O positioned inside the opening portion 118 during operation.

As shown in FIGS. 5 and 6, on the inner surfaces of the outer walls of the right side surfaces of the front case 2 and the rear case 3 (case 10), a guide portion 21 and a guide portion 31, which are plate-like convex ribs, are provided. is provided. The guide portions 21 and 31 guide the moving direction of the guided portion 52 . The guide portion 21 and the guide portion 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 operation member 5 toward the front case 2 side. The edge portion 211 corresponds to the side edge of the rib (guide portion 21) erected from the front case 2. As shown in FIG. Further, the guide portion 31 provided on the rear case 3 side has an edge portion 311 that restricts movement of the operation member 5 toward the rear case 3 side. The edge portion 311 also corresponds to the side edge of the rib (the guide portion 31 ) erected from the rear case 3 . Edge 211 and edge 311 are arranged substantially parallel. The guide portions 21 and 31 are provided so as to be able to engage with the notch portion 521 of the guided portion 52, and also restrict the movement of the operation member 5 in the plate surface direction of the guide portions 21 and 31. As shown in FIG. Therefore, the guide portions 21 and 31 can guide the operation member 5 in the movement axis O direction so as to be able to appear and retract with respect to the opening portion 118 .

Further, the guide portion 31 has a restriction portion 312 on the pressing direction side (inside the case 10) parallel to the movement axis O of the operation member 5. As shown in FIG. The restriction portion 312 protrudes toward the movement axis O from the edge portion 311 of the guide portion 31 . In other words, the restricting portion 312 protrudes further toward the movement axis O of the operating member 5 than the notch portion 521, and contacts the surface of the guided portion 52 on the operating portion 53 side, thereby pushing the operating member 5 in the pushing direction. movement can be regulated.

The operation of the push button switch S8 (switch device) will now be described. In FIG. 6, the operating member 5 is always urged toward the opening 118 by the input piece 482 with a predetermined force. When the user pushes the operating member 5 into the case 10 , the operating member 5 moves along the movement axis O. As shown in FIG. The operation member 5 is configured to be housed inside the case 10 rather than the opening 118 during the pushing operation. The movement of the operating member 5 during the pushing operation is restricted by the contact of the guided portion 52 with the restricting portion 312 . When the pressing operation by the user is released, the operation member 5 moves toward the opening 118 due to the elastic force of the input piece 482 .

With the configuration of the push button switch S8 (switch device) described above, the operating member 5 is guided by the guide portions 21 and 31 provided inside the case 10, thereby moving the operating member 5 along a movement axis coaxial with the central axis of the opening 118. It can move stably along O. Further, by being guided by the guide portions 21 and 31, the operating member 5 prevents the operated portion 51 from coming into contact with the inner peripheral surface of the opening portion 118. You can prevent deformation and continue to operate smoothly. Furthermore, since the operation member 5 can stably move along the movement axis O, it is not necessary to widen the opening diameter of the opening 118 more than necessary, and it is possible to prevent the appearance around the push button switch S8 from being spoiled. can.

Returning to FIG. 3 , the disaster prevention wireless device 1 has a channel (receiving frequency) selection device 13 on the left side of the case 10 . The selection device 13 includes a dial switch S5, an index member 7, a guide portion (a first guide portion 25 and a second guide portion 92 shown in FIGS. 8 and 9B) for guiding movement of the index member 7, and a case. 10 included. The case 10 accommodates the index member 7, the guide portions (the first guide portion 25 and the second guide portion 92), and the switch element 45 inside, and is part of the operation member 6 connected to the switch element 45 of the dial switch S5. is provided so as to be exposed to the outside from the left side surface of the case 10 .

The dial switch S5 includes an operation member 6 and a switch element 45 for detecting the amount of rotation of the operation member 6. As shown in FIG. The operating member 6 has 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 peripheral surface. 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 has a pinion gear 611 on the rotating shaft 61 . The pinion gear 611 is meshed and connected to the rack gear 711 of the index member 7 . Therefore, when the user rotates the dial knob 62 of the dial switch S5, the position of the indicator member 7 can be moved in the vertical direction. The switch element 45 can detect the movement operation of the index member 7 by the operation member 6 .

On the front side of the circuit board 4 (on the side of the front case 2), as shown in FIGS. are placed. The indicator member 7 is restricted from moving in the front, rear, left, and right directions by the front case 2 and the guide member 9, and is slidable in the vertical direction.

The configuration of the front case 2 will be described with reference to FIG. The front case 2 has a notch 22 on its left side for engaging the operating members of the slide switches S3, S4 and the dial switches S5, S6. A restricting rib 221 having an arc shape in a left side view projects from the outer surface of the front case 2 corresponding to the dial switches S5 and S6. A rotatably provided dial knob 62 of the dial switch S5 (similar to the dial switch S6) has a restricted rib (not shown) on the outer surface side of the front case 2, and the restricted rib is an end portion of the restriction rib 221. By contacting with, it is configured to be rotatable within a preset angle range. A plurality of ribs 23 are formed on the inner surface of the left side surface of the front case 2 .

As shown in FIG. 8 , the front case 2 has a groove portion 24 which has a rectangular cross-sectional view formed by a side plate 241 and a bottom plate 242 on the front side of the front case 2 and on the right side of the rib 23 . The side plate 241 and the bottom plate 242 are arranged substantially vertically. The groove portion 24 extends vertically with substantially the same cross-sectional shape. The bottom plate 242 is provided with an opening 242 a extending vertically in parallel with the groove 24 and penetrating therethrough in a slit shape. Further, the cover 112 described above is arranged so as to cover the groove portion 24 . The cover 112 is also provided with a window portion 112a which is a slit-like opening extending vertically. The window portion 112 a is arranged in front of the groove portion 24 and has a length that allows the position of the indicator portion 73 to be visually recognized in the movable range of the indicator member 7 .

As shown in FIG. 9, in the bottom plate 242, one bottom plate portion 242b separated by the opening 242a is provided on the inner side (rear side of the disaster prevention wireless device 1) of the first vertically linear guide portion 25. have The first guide portion 25 has a groove portion 251 surrounded by ribs 251a arranged in parallel, and a support surface 252 located on the rear side of the groove portion 251 (the tip side of the rib 251a). The concave 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.

A notch 251b is provided in a portion of one rib 251a located on the left side of FIG. The front case 2 is opened forward and backward at positions corresponding to the cutouts 251b, and forms engagement recesses (details not shown) for fixing the cover 112 (see also FIG. 1) installed on the front side. ing. Therefore, the notch 251b may be omitted when the cover 112 is not provided or depending on the fixing method of the cover 112 .

The support surface 252 is formed on the same plane by the tip surface of the rib 251 a and the inner wall 252 a provided inside the handle portion 12 . The inner wall 252a is surrounded by left and right inner walls 252b and 252c that stand substantially perpendicular to the inner wall 252a. Further, a restricting portion 252d, which is a projecting portion that projects from the inner wall 252a at the upper end position of the support surface 252, is provided. In other words, the restriction portion 252d is positioned at the upper end portion of the first guide portion 25. As shown in FIG.

Returning to FIG. 8, a sheet-like indexable portion 243 is arranged 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 disaster prevention wireless device 1 in the vertical direction. As shown in the front view of part A around the channel display part 114 in FIG. 112a. The indexed portion 243 is fixed to the bottom plate portion 242c by any method.

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

FIG. 10(a) is a perspective view of the index member 7 and the guide member 9 as seen from the rack gear 711 side. 10B is a perspective view of the index member 7 and the guide member 9 as seen from the side opposite to the rack gear 711. FIG. The index member 7 includes a main body portion 71 in the shape of a straight bar, a second guided portion 72 connected to a right side surface (second surface) of the main body portion 71 that is different from the moving direction of the main body portion 71, and a It has an L-shaped indicator portion 73 that is connected to the second guided portion 72 so as to be aligned. The indicator member 7 is made of the same resin material as the case 10 (the front case 2 and the rear case 3). It should be noted that one of the case 10 and the index member 7 may be made of a material having higher rigidity than the other by using a metal material or the like. The body portion 71 has a rack gear 711 on the first direction D1 side. The body portion 71 also has a first guided portion 712 on the side opposite to the rack gear 711 (first surface). Therefore, the index member 7 includes the first guided portion 712 provided on the first surface side and the second guided portion 72 provided on the second surface side different from the first guided portion 712. part is formed. The first guided portion 712 is formed by ribs 712a arranged in parallel at two locations. A projecting portion having a width shorter than the width of the main body portion 71 projects from one end side of the main body portion 71 in the longitudinal direction, and a contact portion 713 is provided at the tip of the projecting portion. The contact portion 713 is formed in a flat surface shape.

The second guided portion 72 is formed in the shape of a flat plate collar. The indicator portion 73 extends toward the first guided portion 712 with respect to the main body portion 71, and a bar-shaped tip portion 731 is formed substantially perpendicularly on the side opposite to the first guided portion 712. . That is, the index member 7 has the second guided portion 72 on the base end side of the index portion 73 .

The guide member 9 is formed in the shape of an elongated bar and arranged side by side with the index member 7 . The guide member 9 has a screw hole 91 through which the screw member 90 shown in FIG. 8 can be inserted. be done. In addition, the guide member 9 has a second guide portion 92 in the shape of a flat plate flange that protrudes toward the left side (indicator member 7 side). A surface of the second guide portion 92 on the front case 2 side (fastening direction side) is formed as a guide surface 921 that guides the second guided portion 72 of the indicator member 7 . In addition, the second guided portion 72 can slidably contact a projecting portion 921a having a semicircular arc shape in cross section provided on the guide surface 921 side of the second guiding portion 92 (see also FIG. 8). The protruding portion 921 a is formed along the longitudinal direction of the guide member 9 . Further, the guide surface 921 is provided with a restricting portion 921b that protrudes from the projecting portion 921a. The restricting portion 921b abuts the end portion of the index member 7 that moves along the guide surface 921 of the second guide portion 92, and restricts the movement of the index member 7 to one side (downward side of the disaster prevention wireless device 1). to set the moving end position.

As shown in FIG. 8, the concave groove portion 251 of the first guide portion 25 regulates the movement of the indicator member 7 in the first direction d1 while slidably engaging and supporting the first guided portion 712 . In addition, the second guide portion 92 restricts movement of the indicator member 7 in the second direction d2 opposite to the first direction d1 while slidably supporting the second guided portion 72 .

The holding plate 8 shown in FIG. 7 is formed in a flat plate shape and arranged between the circuit board 4 and the indicator member 7 (see also FIG. 11). The holding plate 8 is formed so as to cover most of the movable area of the indicator member 7 , and a part of the projecting portion 8 a is arranged inside the handle portion 12 . By arranging the restraining plate 8 between the circuit board 4 and the index member 7, even if the index member 7 swings as the index member 7 moves, the rack gear 711 is an element mounted on the circuit board 4 (for example, , the legs protruding on the side opposite to the mounting surface of the switch element 43 and the switch element 44) (see FIG. 11). The holding plate 8 has a plurality of continuous openings 81 to 83 as shown in FIG. The opening 81 is provided by notching the side of the restraining plate 8 and is provided as a non-interfering portion so as to avoid the meshing position between the pinion gear 611 and the rack gear 711 . In addition, the openings 82 and 83 are provided as non-interfering portions to avoid interference with leg portions protruding from the side opposite to the mounting surface of the switch elements 45 and 46 mounted on the circuit board 4 shown in FIG. (detailed positional relationship is not shown).

Next, the operation of the selection device 13 will be described. The indicator member 7 can be moved up and down by the user rotating the dial knob 62 . The user can recognize the currently selected set value 243a by the position on the indexed portion 243 indicated by the index portion 73 of the index member 7 (see also the front view of part A in FIG. 1). For example, when 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 value of the channel number or the receiving frequency is set in the indexed portion 243 as the set value 243a in ascending order. Alternatively, they are displayed in descending order, and the user can recognize the current setting value from the position on the setting value 243a indicated by the indicator section 73. FIG. Also, the switch element 45 corresponding to the dial switch S5 detects an input value (amount of rotation) corresponding to the set value 342a indicated by the indicator section 73. FIG. The disaster prevention wireless device 1 can perform processing according to an input value (rotation amount) detected by the switch element 45 by a control unit (not shown).

The downward movable end position of the index member 7 is regulated and set by contacting one end of the second guided portion 72 of the index member 7 with the regulating portion 921b. Further, the upward movable end position of the index member 7 is regulated and set by the contact portion 713 of the index member 7 coming into contact with the regulating portion 252 d of the front case 2 . A portion of the index member 7 is arranged in the handle portion 12 at one movable end position of the index member 7 (in this embodiment, the position where the contact portion 713 of the index member 7 contacts the restricting portion 252d).

As described above, in the selection device 13 described in the present embodiment, the indicator member 7 is made of the same material as the case 10 (the front case 2 and the rear case 3) of the disaster prevention wireless device 1 and other parts constituting the disaster prevention wireless device 1. Since it can be produced, the selection device 13 can be produced in a simple process. In addition, since the indicator member 7 is also arranged in the handle portion 12 at one movable end position, it is possible to widen the movable range while downsizing the main body portion 11 . Therefore, it is possible to configure the disaster prevention wireless device 1 and the selection device 13 in which the range of the channel display section 114 is enlarged and the setting value 243a is easy to see while the disaster prevention wireless device 1 is compact.

Next, the battery box 14 included in the disaster prevention wireless device 1 will be described. The disaster prevention wireless device 1 includes a battery box 14 including a main body 11 (second member) and a lid member 32 (first member) on the back side shown in FIG. The battery box 14 includes a releasing portion 321 (first releasing portion) provided on the lid member 32 and a releasing portion 33 (second releasing portion) provided on the main body portion 11 (rear case 3), It forms a double locking mechanism.

The rear case 3 includes, on the back side thereof, a bottomed recessed accommodation portion 34 capable of accommodating a plurality of batteries BT (see FIG. 15). A plate-like cover member 32 is connected to the main body 11 by a rotating shaft 323 to the rear side of the housing portion 34 so as to be openable and closable.

A releasing portion 321 is provided on the distal end side of the lid member 32 opposite to the rotating shaft 323 . As shown in the cross-sectional view of FIG. 15 (the side view is also the same), the release portion 321 is formed in a substantially U-shaped cantilever spring plate shape protruding from the lid member 32 in the closing direction. Therefore, the releasing portion 321 is connected to the rotating shaft 323 of the lid member 32 so as to be resilient in the radial direction. Further, the release portion 321 has an operation claw 322 for performing release operation of the release portion 321 at the tip. As shown in FIG. 12, the operation claw 322 is formed with a width shorter than the width (horizontal width) of the releasing portion 321 . An inclined portion 322a is formed at the tip of the operation claw 322 on the outer surface side. In addition, the release portion 321 has engaged portions 321a on both left and right shoulder portions on the base end side of the operation claw 322 (see also FIG. 5). The engaged portion 321a is formed in a stepped shape by cutting out in an L shape.

Further, the rear case 3 has a concave portion 35 which can accommodate the releasing portion 321 and which is a recess in which an engaging portion 351 is formed in the inner wall 35a. The engaging portion 351 is formed as a convex portion. An engaging portion 351 formed in the rear case 3 (main body portion 11) is configured to be engageable with the engaged portion 321a.

As shown in FIG. 12, the release portion 33 is formed in a rectangular cantilever spring plate shape by cutting out a portion of the rear case 3 (body portion 11). Therefore, the releasing portion 33 is provided so as to be elastically released with respect to the rear case 3 . The release portion 33 extends toward the operating claw 322 of the lid member 32 . In other words, the releasing portion 33 and the releasing portion 321 are arranged so that their tip portions face each other while partially overlapping each other. The releasing portion 33 has a projecting portion 331 that projects toward the outer side surface of the rear case 3 and a projecting portion 332 that is arranged closer to the tip side of the releasing portion 33 than the projecting portion 331 . The protruding portion 331 is formed in a rectangular shape elongated in the width direction of the releasing portion 33 when viewed from the back, and has an inclined portion 331a on the base end side of the releasing portion 33 . The protruding portion 331 is configured such that the gap S (see the enlarged view of B in FIG. 15) from the tip of the operation claw 322 is set narrow (for example, narrower than the thickness of the user's finger), and the operation claw 322 are arranged parallel to each other. A hemispherically recessed marker 331 b is formed on the top surface (end surface) of the projecting portion 331 .

The projecting portion 332 is formed in a long rectangular shape elongated in the width direction of the release portion 33 in the rear view of FIG. 12 . 15, the projecting portion 332 is gently inclined on the proximal end side of the releasing portion 33. As shown in FIG. Although the release portion 33 of the present embodiment contacts the operation claw 322 at a portion of the distal end in the width direction, the release portion 33 may contact the operation claw 322 over the entire width direction. That is, at least a portion of the distal end of the release portion 33 in the width direction is in contact with the operation claw 322 . The releasing portion 33 is provided in a recessed portion 36 recessed from the outer surface 3a of the rear case 3. When the cover member 32 is closed, the projecting portions 331, 332 and the operating claws 322 are located on the outer surface of the rear case 3. It is arranged at a position recessed from 3a.

As shown in FIG. 13 , the releasing portion 33 is a columnar restrained projection 333 formed inside the main body portion 11 (on the side opposite to the surface on which the projecting portion 331 is provided) in a hollow, substantially cylindrical shape. have The restricted projection 333 extends toward the inner surface side of the facing front case 2 . A semi-cylindrical projecting portion 333 a is formed at the distal end portion of the restricted projection 333 so as to protrude from the distal end side of the releasing portion 33 . Therefore, the end surface of the projecting portion 333a is formed in a semicircular arc shape.

In addition, as shown in FIG. 14, the front case 2 has a columnar restricting projection 26 formed in a T-shaped cross section on the inner surface side. The restricting protrusion 26 extends toward the inner surface side of the rear case 3 that faces it. The restricting projection 26 includes a flat plate-shaped horizontal portion 261 and a vertical portion 262 projecting from a widthwise intermediate position of the horizontal portion 261 toward the distal end side of the release portion 33 (that is, the lower side of the disaster prevention wireless device 1). include. A reinforcing rib 263 in the form of a triangular plate is provided on the side opposite to the vertical portion 262 of the restricting projection 26 . Further, the restricting projection 26 is arranged so as to pass through the inside of the T-shaped opening 49 of the circuit board 4 . The tip of the regulating projection 26 is located closer to the regulated projection 333 than the circuit board 4 is. 15, the regulating projection 26 substantially faces the regulated projection 333. As shown in FIG. The restricting protrusion 26 and the restricted protrusion 333 are arranged in parallel on different straight lines.

Next, the attachment/detachment operation of 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 lid member 32 covers the housing portion 34 by engaging the engaging portion 351 and the engaged portion 321a. The gap S is set to be narrow, and the releasing operation of the operating claw 322 of the releasing portion 321 (first releasing portion) is blocked by the projecting portion 331 so as to block entry of a finger or the like. It is possible to prevent the releasing portion 321 from being released without doing so. In this manner, the release portion 33 is elastically biased to a position that hinders the release operation on the release portion 321 .

To open the lid member 32, first, the release portion 33 is pushed down toward the main body portion 11 against the elastic force. Then, as indicated by the two-dot chain line, the distal end side of the release portion 33 moves downward with the proximal end portion serving as a fulcrum. Since the body portion 11 has the regulating projection 26 at a position where it can contact the regulated projection 333 of the release portion 33 that has been released, the movement of the releasing portion 33 is caused by the contact between the regulated projection 333 and the regulating projection 26. regulated by Therefore, it is possible to prevent damage to the releasing portion 33 by setting the pushing amount of the releasing portion 33 within a predetermined allowable range. In the configuration of this embodiment, mainly the projecting portion 333a of the restricted projection 333 and the vertical portion 262 of the restricting projection 26 can abut. When the release portion 33 is pushed down, the gap S is widened to a width (or space) that allows the tip of the finger to be inserted into the lower surface side of the operation claw 322 .

When the user presses the operating claw 322 toward the lid member 32 side (rotating shaft 323 side) against the elastic force of the releasing portion 321 to release the releasing portion 321, the releasing portion 321 is separated from the engaged portion 321a and the engaging portion 351. can be deflected until it disengages from the As a result, the lid member 32 is unlocked from the body portion 11, and the lid member 32 can be rotated around the rotation shaft 323 to be in the open state.

To close the lid member 32, the lid member 32 is rotated so as to be pushed toward the main body 11 side. Then, a part of both edges in the width direction of the releasing portion 321 contacts the engaging portion 351 and bends. When the releasing portion 321 gets over the engaging portion 351 at the position of the engaged portion 321a, the releasing portion 321 is biased by the inner wall 35a on the side of the engaging portion 351, and the engaging portion 351 and the engaged portion 321a are engaged. be. Thereby, the lid member 32 and the body portion 11 are easily fixed.

As described above, in the present embodiment, the cover member 32 (first member) having the engaged portion 321a, the body portion 11 (second member) having the engaging portion 351 capable of engaging with the engaged portion 321a, A releasing portion 321 (first releasing portion) that releases the engagement between the engaged portion 321a and the engaging portion 351 by a releasing operation, and a releasing portion that is elastically biased to a position that hinders the releasing operation on the releasing portion 321. 33 (second release portion) and the battery box 14 (locking mechanism) have been described. The lid member 32 and the body portion 11 can be fixed by a double lock mechanism by the releasing portion 321 and the releasing portion 33 . Therefore, it is possible to configure the disaster prevention wireless device 1 equipped with a lock mechanism (battery box 14) that can be easily attached and detached while preventing unintended release.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments and can be implemented with various modifications. For example, in the present embodiment, the guides 21 and 31 are provided directly on the case 10 , but the guides may be formed of arbitrary members housed in the case 10 .

Moreover, the restricting portion 312 described in the present embodiment may be provided in at least one of the guide portion 21 and the guide portion 31 , such as being provided in both the guide portion 21 and the guide portion 31 .

Further, the operation unit 53 capable of operating the switch element 48 is not limited to the configuration shown in the present embodiment, and can be configured arbitrarily according to the configuration of the switch element 48 .

Further, in the present embodiment, the curved columnar handle portion 12 is connected to the main body portion 11 at left and right positions and is curved in a U shape. 11 and the other end side may not be connected to the body portion 11 . In addition, the index member 7 may be configured such that the entire index member 7 is disposed within the handle portion 12 at one movable end position.

Further, in the present embodiment, the case 10 accommodates the indicator member 7, the guide portions (the first guide portion 25 and the second guide portion 92), and the switch element 45 inside, and the operation member 6 connected to the switch element 45. is exposed to the outside of the case 10, but the arbitrary configurations of the indicator member 7, the guide portions (the first guide portion 25 and the second guide portion 92), the operation member 6 and the switch element 45 are A part or the whole can be configured to be housed inside the case 10 .

Also, in this embodiment, an example in which the device including the selection device 13 is the disaster prevention wireless device 1 has been described, 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 capable of selecting any function or setting in addition to selecting a channel (receiving frequency).

Moreover, in the battery box 14, the release portion 321 (first release portion) may be provided on the main body portion 11 (second member) side. In this case, the releasing portion 321 has an engaged portion and is formed resiliently, and can be configured to be engageable with and disengageable from the engaging portion provided on the lid member 32 side. Further, the release portion 33 (second release portion) may be provided on the lid member 32 (first member) side.

Alternatively, the engaging portion 351 may be configured as a concave portion, and the engaged portion 321a may be configured as a convex portion.

Further, the gap S that can be formed between the releasing part 321 and the releasing part 33 is formed by the gap between the projecting part 331 projecting from the outer surface of the releasing part 33 and the operation claw 322 . By providing a recess in the portion and arranging the operation claw 322 in this recess, the gap S between the inner wall of the recess and the operation claw 322 forms a gap S that blocks entry of a finger or the like. good too.

Further, in the present embodiment, the case 10 has been described as an exterior member, but may be configured as a case for other positions or functional parts, such as being provided as an interior member.

Reference Signs List 1 disaster prevention wireless device 2 front case 3 rear case 3a outer surface 4 circuit board 5 operation member 6 operation member 7 indicator member 8 holding plate 8a projecting portion 9 guide member 10 case 11 main body portion 12 handle portion 13 selection device 14 battery box 21 guide portion 22 Notch 23 Rib 24 Groove 25 First guide 26 Regulating protrusion 31 Guide 32 Lid member 33 Releasing part 34 Accommodating part 35 Recess 35a Inner wall 36 Recess 41 to 48 Switch element 49 Opening 51 Operated part 52 Guided part 52a end portion 52b end portion 53 operating portion 61 rotating shaft 62 dial knob 71 body portion 72 second guided portion 73 index portion 81 to 83 opening 90 screw member 91 screw hole 92 second guide portion 111 speaker 112 cover 112a window Part 113 Clock part 114 Channel display part 115 Antenna 116 Power generator 116a Handle part 116b Shaft part 117 Protruding part 118 Opening part 118a Inclined part 211 Edge part 221 Regulating rib 241 Side plate 242 Bottom plate 242a Opening 242b Bottom plate part 242c Bottom plate part 243 To be indexed Portion 243a Setting value 244 Female screw portion 251 Groove portion 251a Rib 251b Notch portion 252 Support surface 252a Inner wall 252b Inner wall 252c Inner wall 252d Regulating portion 261 Horizontal portion 262 Vertical portion 263 Reinforcement rib 311 Edge portion 312 Regulating portion 321 Release portion 321a Engaged Portion 322 Operation claw 322a Inclined portion 323 Rotating shaft 331 Projection 331a Inclined portion 331b Marker 332 Projection 333 Regulated projection 333a Projection 342a Set value 351 Engagement portion 481 Element body 482 Input piece 521 Notch 522 Projection 611 Pinion Gear 711 Rack gear 712 First guided portion 712a Rib 713 Contact portion 731 Tip portion 921 Guide surface 921a Protruding portion 921b Regulating portion BT Battery D1 First direction D2 Second direction d1 First direction d2 Second direction J1 to J3 Jack L Light source O Movement axis S Gap S1 to S4 Slide switches S5, S6 Dial switches S7, S8 Push button switches

Claims (7)

a first member having an engaged portion;
a second member having an engaging portion that can be engaged with the engaged portion;
a first releasing portion provided on one of the first member and the second member for releasing the engagement between the engaged portion and the engaging portion by a releasing operation;
a second release portion that is provided on the other one of the first member and the second member and is elastically biased to a position that hinders a release operation on the first release portion;
A locking mechanism comprising: The first releasing portion has the engaged portion that is resiliently connected to the first member,
The second release portion is elastically connected to the second member,
The locking mechanism according to claim 1, characterized in that: The first releasing portion has an operation claw for performing a releasing operation of the engaged portion and the engaging portion,
The second releasing portion is formed in a spring plate shape, and has a projecting portion in which at least a part of the tip abuts the operating claw and is arranged in parallel with the operating claw,
3. The locking mechanism according to claim 2, characterized in that: The first release portion is formed in a U shape and has the engaged portion on the base end side of the operation claw,
An accommodating portion which is a recess capable of accommodating the first releasing portion and having the engaging portion formed on an inner wall thereof,
4. The locking mechanism according to claim 3, characterized in that: a first member having an engaged portion;
a second member having an engaging portion that can be engaged with the engaged portion;
a first releasing portion provided on one of the first member and the second member for releasing the engagement between the engaged portion and the engaging portion by a releasing operation;
a second release portion that is provided on the other one of the first member and the second member and is elastically biased to a position that hinders a release operation on the first release portion;
A battery box comprising: a lid member having an engaged portion;
a body portion having an engaging portion that can be engaged with the engaged portion;
a first releasing portion provided on one of the lid member and the main body portion for releasing the engagement between the engaged portion and the engaging portion by a releasing operation;
a second release portion that is provided on the other one of the lid member and the main body portion and is resiliently biased to a position that inhibits a release operation on the first release portion;
A disaster prevention wireless device comprising: The second release portion is formed in the main body portion and has a columnar restricted protrusion inside the main body portion,
The body portion has a regulating projection at a position where the regulated projection of the released second release portion can come into contact with the regulated projection,
7. The radio equipment for disaster prevention according to claim 6, characterized in that:

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