JP2010062693A - Interphone slave unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interphone slave unit which is easy to operate when an operator calls a master unit. <P>SOLUTION: The operator presses a covering member 10 from a second position at which a portion of the covering member 10 that acts as a push button covering the entire base body is isolated from the surface of the base body 20 by the energization force of a spring to a first position at which a distance between any portion of the covering member 10 and the base body 20 becomes small. By the movement of the covering member 10 from the second position to the first position, the covering member 10 presses a pressing rod 21. In accordance with the pressing of the pressing rod 21, the pressing rod 21 presses a switch 5 to establish connection with a master unit, which enables speech communication with the master unit to be performed through a speaker 3 and a microphone 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an interphone handset that enables a call by transmitting and receiving audio signals and the like between a base device and a handset.

  As a conventional interphone handset, there is one disclosed in Patent Document 1. The interphone handset (door phone) described in Patent Document 1 includes a door phone camera as a camera unit, a white light emitting diode built-in part, a microphone, a speaker, a call button, a handset using lamp, and the like. By pressing the call button, a call signal is issued to the parent device, and a call with the parent device becomes possible.

JP 2003-198739 A

  However, since the size of the call button of the child device for calling the parent device is small with respect to the size of the entire child device, there is a problem that it is difficult for a visitor to press. In particular, small-sized call buttons are difficult to use for physically handicapped persons such as visually handicapped persons and the elderly.

  An object of the present invention is to provide an interphone handset that is easy to operate when an operator calls the base device.

  The intercom handset of the present invention covers a base body, the whole base body, a first position, and a second position at least partially away from the base body than in the first position. A covering member movable between the base body and the covering member, and an elastic member that urges at least a part of the covering member in a direction away from the base body and outputs sound. And a microphone for inputting sound. When the covering member moves in the direction from the second position toward the first position, it resists the urging force of the elastic member. And the cover member moves from the second position to the first position to call the master unit.

  According to said structure, since the coating | coated member has coat | covered the whole base body and has the magnitude | size substantially the same as the magnitude | size of the whole subunit | mobile_unit, it is easy for an operator to push a coating | coated member. Therefore, the master unit can be easily called by pressing the covering member having a configuration that is easy for the operator to press from the second position to the first position.

  Further, when the covering member is located at the second position, the distance from the base body is equal in any part of the covering member, and when the covering member is located at the first position, It is desirable to swing about the swing shaft so that the distance from the base body is smaller than in the second position in part.

  Further, the intercom handset of the present invention further includes a switch that is disposed on the side opposite to the covering member with respect to the base body, and that serves as a trigger for calling the base unit. A hole formed in a portion covered by the covering member, and a pressing rod inserted into the hole, and the covering member moved from the second position to the first position moves the pressing rod; It is desirable that the switch is pressed against the pressing rod by pressing.

  Like the above configuration, it is arranged on the opposite side of the base body from the covering member, and it has a switch that triggers to call the master unit, and it is possible to use a low-cost switch and By providing the pressing rod to be pressed into the hole formed in the base body, a waterproof structure into the base body can be easily performed.

  Further, the speaker and the microphone are arranged on the side opposite to the covering member with respect to the base body, and the covering member and the base body each pass sound output from the speaker. It is desirable that an opening and an opening for allowing sound to be input to the microphone to pass therethrough are provided, and an enclosure wall is formed in the base body so as to surround each of the openings.

  According to the above configuration, even if rain enters from the gap between the base body and the covering member, and the rain flows along the surface of the base body facing the covering member, the opening of the base body is prevented by these surrounding walls. It is possible to prevent the rain from entering inside. Therefore, it is possible to prevent a situation in which rain flows into the speaker and the microphone disposed on the opposite side of the covering member with respect to the base body and breaks down.

  Further, the base body is formed with a protrusion having a hole opened in a direction orthogonal to the direction from the second position toward the first position on the surface facing the covering member, A protruding piece protruding in a direction perpendicular to the direction from the second position toward the first position is provided, the protruding piece being inserted into the hole of the protruding portion, and the covering member being It is desirable to move in the hole as it moves between the second position and the first position.

  According to said structure, the range which a protrusion piece moves can be limited with the width | variety regarding the direction which goes to the 1st position from the 2nd position in the hole of the projection part formed in the base body. Therefore, the range in which the protruding piece moves and the movement range of the covering member associated therewith can be limited so that the covering member can be easily pushed.

  A preferred embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view of an interphone handset 1 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the handset 1.

  As shown in FIGS. 1 and 2, the slave unit 1 includes a covering member 10 that acts as a push button, a base body 20, a substrate 30, a back cover 2, a speaker 3, a microphone 4, and a switch 5. As shown in FIG. 2, the covering member 10 is disposed on the outermost side, and the base body 20 is disposed so that the entire covering body 10 is covered with the covering member 10. The back cover 2 is a cover that covers the entire back side of the base body, and forms a battery housing portion 2a in a part thereof. The substrate 30 is disposed on the side opposite to the covering member 10 with respect to the base body 20 and is stacked so as to be sandwiched between the base body 20 and the back cover 2. In the present embodiment, the side on which the covering member 10 is disposed in the slave unit 1 is referred to as the front side, and the side on which the back cover 2 is disposed is referred to as the back side.

  The speaker 3 is directly attached to the base body 20 from the back side of the base body 20. The microphone 4 and the switch 5 are provided on the substrate 30 and are electrically connected to the substrate 30. The board 30 is equipped with a circuit for calling a parent machine (not shown), that is, a circuit for controlling a connection state with the parent machine. When the switch 5 on the board 30 is pressed, the connection with the parent machine is established wirelessly. Then, the sound input to the microphone 4 can be transmitted as a sound signal to the parent device, and the sound signal received from the parent device can be output as sound from the speaker 3. That is, a call can be made with the parent device via the speaker 3 and the microphone 4. That is, the switch 5 is a trigger for calling the master unit. The switch 5 is disposed so as to be pressed by a pressing rod 21 described later.

  The back cover 2 has a battery housing portion 2a for housing a battery (not shown) therein and two battery terminals 2b protruding from the battery housing portion 2a to the front side. The terminal 2b is electrically connected to the substrate 30 and supplies power.

  Next, the details of the base body 20 will be described with reference to FIG. FIG. 3 is a perspective view showing the front side of the base body 20.

  The base body 20 has a substantially rectangular shape in plan view and has a thickness. On the back side of the base body 20, a recess (not shown) that accommodates the substrate 30 and the back cover 2 is formed. Then, the base body 20 is fixed with screws to a base fixing plate (not shown) attached to a wall or the like. Here, the base fixing plate is sized to be hidden behind the recess of the base body 20.

  On the surface of the base body 20, a convex portion 24 that protrudes in a cross shape from substantially the entire surface is formed. In the convex portion 24, a substantially semicircular recess 26 is formed near one end in the longitudinal direction of the base body 20, and a slit-shaped opening 26 a is formed in the recess 26. The opening 26 a is formed at a position facing the speaker 3 installed in the recess on the back side of the base body 20, and the sound output from the speaker 3 can pass to the front side of the base body 20. In addition, a short cylindrical enclosing wall 26b is formed in the recess 26 so as to surround the periphery of the opening 26a.

  Further, in the convex portion 24, a substantially semicircular recess 27 is formed near the other end in the longitudinal direction of the base body 20, and a slit-shaped opening 27 a is formed in the recess 27. The opening 27 a is formed at a position facing the microphone 4 on the substrate 30 accommodated in the recess on the back side of the base body 20, and allows sound input to the microphone 4 to pass therethrough. That is, the opening 27 a can pass the sound that has passed through the opening 12 of the covering member 10 described later from the outside of the child device 1 to the back side of the base body 20. In addition, a short cylindrical surrounding wall 27b protruding so as to surround the periphery of the opening 27a is formed in the recess 27. Here, the surrounding wall 26b and the surrounding wall 27b are formed at the center in the width direction of the base body 20 so as to be positioned along the longitudinal direction.

  In the convex portion 24, a pressing rod hole 29 is formed at a position facing the switch 5 between the surrounding wall 26 b and the surrounding wall 27 b. The convex portion 24 is formed with short cylindrical surrounding walls 29 a and 29 b that protrude so as to surround the periphery of the pressing rod hole 29. The surrounding wall 29b has the same function as the surrounding wall 26b and the surrounding wall 27b. Note that the inner surrounding wall 29a is a stopper for a cross-shaped pressing projection 15 formed on the back side of the covering member 10 to be described later.

  Further, the convex portion 24 has a pressing rod 21 inserted into the pressing rod hole 29. That is, the pressing bar 21 passes through the convex portion 24 of the base body 20 and protrudes to the back side of the base body 20. When the covering member 10 is positioned at a second position to be described later, the protruding tip of the pressing bar 21 does not press the switch 5 and is disconnected from the parent machine. When the covering member 10 moves from the second position, which will be described later, to the first position, the switch 5 is pressed by being pressed by a pressing protrusion 15 of the covering member 10, which will be described later, and the connection with the parent device is established.

  Further, a U-shaped swinging member 22 is disposed on the surface of the base body 20 in the vicinity of the end near the surrounding wall 26b in the longitudinal direction of the base body 20 where the convex portion 24 is not formed. Has been. The U-shaped oscillating member 22 is arranged such that the bottom of the U-shape extends along substantially the entire length of the edge of the end of the base body 20. And the protrusion 22a which protruded the width direction outer side of the base body 20 is formed in the both ends of the U-shaped rocking | fluctuation member 22, respectively, and the protrusion 22a is the recessed part 17a of the support protrusion 17 of the coating | coated member 10 mentioned later. Is fitted. Further, both end portions of the U-shaped swing member 22 are fixed together with the back cover 2 from the back side of the base body 20 by screws (not shown). A line connecting the centers of the two protrusions 22a serves as a swing axis when the covering member 10 swings as described later.

  In addition, on the surface of the base body 20, two protrusions 23 are formed along the edge of the other end in the vicinity of the other end in the longitudinal direction of the base body 20 where the convex portion 24 is not formed. ing. These protrusions 23 are positioned symmetrically with respect to the center of the base body 20 in the width direction. Further, the protrusion 23 has a quadrangular prism shape, and has a recess 23a that opens in a direction orthogonal to the direction from the second position to the first position, which will be described later, and toward the outside.

  In addition, on the surface of the base body 20, two spring receiving portions 25 are respectively formed at positions where the protrusions 24 are not formed and sandwich the two protrusions 23 in the width direction of the base body 20. Yes. The spring receiving portion 25 includes an enclosing wall 28 and a plurality of ribs 25a. At each position, in the vicinity of the two spring receiving portions 25, an inverted U-shaped surrounding wall 28 that opens outward in the other end in the longitudinal direction of the base body 20, and a plurality of ribs 25a at the outward opening portion, respectively. Is formed. The surrounding wall 28 has the same function as the surrounding wall 26b, the surrounding wall 27b, and the surrounding wall 29b. The rib 25a serves to prevent water from collecting in the spring receiving portion 25 and prevent the spring from coming off. A coil spring 16 of the covering member 10 described later is in contact with the spring receiving portion 25 surrounded by the surrounding wall 28 and the rib 25a on the surface of the base body 20.

  Next, with reference to FIG.4 and FIG.5, the detail of the coating | coated member 10 is demonstrated. 4 is a perspective view showing the front side of the covering member 10, and FIG. 5 is a perspective view showing the back side of the covering member 10. The covering member 10 has a substantially rectangular shape in plan view and covers the entire base body 20, and as shown in FIG. 5, a concave portion that accommodates the convex portion 24 of the base body 20 on the back side. 14 is formed. The four side walls that define the recess 14 are also effective in increasing the strength of the covering member 10 that acts as a push button.

  On the surface of the covering member 10, a slit-like opening 11 is formed at a position facing the opening 26 a of the base body 20. The opening 11 can pass the sound output from the speaker 3, more specifically, the sound output from the speaker 3 and passing through the opening 26 a to the front side of the covering member 10. Further, a slit-like opening 12 is formed on the surface of the covering member 10 at a position facing the opening 27 a of the base body 20. The opening 12 can pass the sound input to the microphone 4 from the outside of the handset 1. More specifically, the opening 12 can pass sound from the outside of the child device 1 to the back side of the covering member 10, and the sound further passes from the front side to the back side of the base body 20 through the opening 27 a. By passing, it is inputted to the microphone 4. In addition, it is preferable to form each slit of the covering member 10 so as to alternate with the slits of the openings 26a and 27a of the base body 20 in order to prevent rain from entering.

  As described above, the recess 14 is formed on the back side of the covering member 10. A cross-shaped pressing protrusion 15 is provided between the opening 11 and the opening 12 on the back surface of the covering member 10, that is, on the bottom surface 14 a that defines the recess 14. The pressing protrusion 15 presses the pressing rod 21 when the covering member 10 moves from a second position described later to the first position.

  Further, on the bottom surface 14 a, spring accommodating portions 13 projecting in an annular shape are formed at both ends in the width direction of the covering member 10 near one end near the opening 12 in the longitudinal direction of the covering member 10. Each of these spring accommodating portions 13 accommodates a coil spring 16 therein. That is, the spring accommodating portion 13 has a recessed shape, and the end of the spring 16 is accommodated in the recessed portion. As described above, when the spring 16 is compressed, the other end of the spring 16 is in contact with the spring receiving portion 25 on the surface of the base body 20, so that the covering member 10 is brought into contact with the base body 20. It is energizing in the direction away from.

  Support protrusions 17 are respectively provided on two side surfaces 14b positioned at both ends in the width direction of the covering member 10 among the four side surfaces 14b defining the recess 14. These support protrusions 17 are located in the vicinity of the end portions of the side surfaces 14b far from the springs 16 in the longitudinal direction. Further, these support protrusions 17 have an annularly recessed shape, and the protrusions 22a of the U-shaped swinging member 22 are fitted into the recessed portions 17a as shown by broken lines in FIG. Thus, the covering member 10 is supported so as to be swingable about the swing shaft.

  Further, of the other two side surfaces 14b, the side surface 14b closer to the spring 16 is formed with two projecting pieces 18 that are respectively inserted into the recesses 23a of the projection 23 of the base body 20. The protruding piece 18 protrudes from the edge of the side surface 14b farthest from the bottom surface 14a in a direction perpendicular to the direction from the second position described later to the first position and inward. The protruding piece 18 moves in the recess 23a as the covering member 10 moves between a second position and a first position described later. Thus, the range in which the protruding piece 18 moves and the movement range of the covering member 10 associated therewith are limited so that the covering member 10 can be easily pushed. In this embodiment, at one end of the covering member 10, the covering member 10 swings around the swing axis by fitting the protrusion 22 a of the U-shaped swinging member 22 into the recessed portion 17 a of the support protrusion 17. Supports movable. The protruding piece 18 formed on the other end of the covering member 10 is inserted into the recess 23 a of the protruding portion 23 of the base body 20, thereby attaching the other end of the covering member 10 so as not to leave the base body 20. Also plays.

  Next, with reference to FIG.6 and FIG.7, the example of operation of the subunit | mobile_unit 1 is demonstrated. FIG. 6 is a view showing a state before the covering member 10 acting as a push button is pressed by a finger, and FIG. 7 is a view showing a state when the covering member 10 is pressed by a finger. is there.

  As shown in FIG. 6, the covering member 10 is urged in a direction away from the base body 20 by the urging force of the spring 16 disposed on the back side of the covering member 10 when not being pressed. At this time, near one end in the longitudinal direction of the covering member 10, both ends of the U-shaped swinging member 22 are fixed to the base body 20, and the protrusion 22 a of the U-shaped swinging member 22 is a supporting protrusion of the covering member 10. Since the covering member 10 is supported so as to be swingable about the swing shaft, the cover member 10 is not substantially separated from the base body 20. On the other hand, in the vicinity of the other end in the longitudinal direction of the covering member 10, the protruding piece 18 of the covering member 10 is regulated by the recess 23 a of the protrusion 23 of the base body 20, and the position closest to the tip of the protrusion 23 in the recess 23 a. Abut. The position of the covering member 10 at this time is referred to as a second position. In the second position, in this embodiment, the distance from the base body 20 is equal in any part of the back surface of the covering member 10.

  Then, the operator of the slave unit 1 calls and calls the master unit (not shown) in the direction in which the projecting piece 18 contacts the surface of the base body 20 in the recess 23a of the projection 23, as shown in FIG. The covering member 10 is pressed. The pressing is possible until the projecting piece 18 comes into contact with the surface of the base body 20, and the position of the covering member 10 at the time of contact is referred to as a first position. That is, due to the pressing of the covering member 10, the covering member 10 swings at least partially so that the distance from the base body 20 becomes smaller than in the second position.

  When the covering member 10 moves in the direction from the second position to the first position, the covering member 10 moves against the urging force of the spring 16 and is centered on the U-shaped rocking member 22 that is the rocking shaft. Rocks.

  Then, when the covering member 10 moves from the second position to the first position, the pressing protrusion 15 of the covering member 10 presses the pressing rod 21. Along with this, the pressing bar 21 presses the switch 5 and the connection with the parent device is established, so that a call can be made with the parent device via the speaker 3 and the microphone 4.

  According to this embodiment described above, the following effects can be obtained.

  Since the covering member 10 covers the entire base body 20 and has approximately the same size as the entire child device 1, the operator can easily push the covering member 10. Therefore, the master unit can be easily called by pressing the covering member 10 having a configuration that is easy for the operator to press from the second position to the first position.

  In addition, the switch 5 is provided on the side opposite to the covering member 10 with respect to the base body 20 and serves as a trigger for calling the master unit, so that a low-cost switch can be used and the switch 5 is pressed. By inserting the pressing rod 21 to be inserted into the pressing rod hole 29 formed in the base body 20, waterproofing into the base body 20 can be easily performed.

  Even if rain enters from the gap between the base body 20 and the covering member 10 and flows along the surface of the base body 20, the surrounding walls 26b, 27b or the surrounding wall 29b cause the openings 26a, 27a or It is possible to prevent rain from entering the pressure bar hole 29. Therefore, it is possible to prevent a situation in which rain flows into the speaker 3 and the microphone 4 or the switch 5 disposed on the opposite side of the covering member 10 with respect to the base body 20 and breaks down.

  Further, the range in which the protruding piece 18 moves can be limited by the width in the direction from the second position to the first position in the recess 23 a of the protrusion 23 formed on the base body 20. Therefore, the range in which the protruding piece 18 moves and the movement range of the covering member 10 associated therewith can be limited so that the covering member 10 can be easily pushed.

The embodiment described above is an example of the embodiment of the present invention, and the present invention is not limited to such a configuration.
In the present embodiment, the covering member 10 has a shape that covers the entire convex portion 24 of the base body 20.
The covering member 10 is not limited to this shape. Any shape that covers at least the entire base body 20 in plan view may be used. For example, a plate-shaped covering member that covers the base body 20 in plan view may be used. Further, it may be a covering member that covers part or all of the side surface of the base body 20.

  In the present embodiment, the U-shaped rocking member 22 serving as the rocking shaft is disposed on the surface of the base body 20 in the vicinity of the end portion closer to the surrounding wall 26b in the longitudinal direction of the base body 20. The position of the U-shaped swing member 22 is not limited to this. For example, the place where the U-shaped swing member 22 is disposed and the place where the protrusion 23, the spring receiving portion 25, and the surrounding wall 28 are disposed may be reversed.

  In the present embodiment, the short cylindrical enclosure wall 26b and the enclosure wall 27b are provided so as to surround each of the openings 26a and 27a provided corresponding to the speaker 3 and the microphone 4. It is not restricted to what provides the surrounding wall 26b and the surrounding wall 27b.

  For example, instead of the surrounding wall 26b, the surrounding wall 26b may be composed only of the upper half (in FIG. 2, the outer half with respect to the longitudinal direction of the base body 20). In addition, a configuration having an upper side than the opening 26a in the longitudinal direction of the base body 20 and extending over all the openings 26a in the width direction of the base body 20 or along the respective openings 26a. If so, it can be applied as a substitute for the surrounding wall 26b.

  Further, for example, instead of the surrounding wall 27b, the surrounding wall 27b may be constituted only by the upper half (in FIG. 2, the inner half with respect to the longitudinal direction of the base body 20). In addition, a configuration having an upper side than the opening 27a in the longitudinal direction of the base body 20 and extending over all of the openings 27a in the width direction of the base body 20 or along the respective openings 27a. If so, it can be applied as a substitute for the surrounding wall 27b.

  In addition, audio transmission / reception between the slave unit 1 and the master unit may be wireless or wired. Moreover, the protrusion part 23 may have the hole penetrated in the direction orthogonal to the direction which goes to a 1st direction from a 2nd direction instead of the recessed part 23a.

It is a perspective view of the subunit | mobile_unit of the intercom which concerns on one Embodiment of this invention. It is a disassembled perspective view of the subunit | mobile_unit shown in FIG. It is the perspective view which showed the front side of the base body of the subunit | mobile_unit shown in FIG. It is the perspective view which showed the front side of the coating | coated member of the subunit | mobile_unit shown in FIG. It is the perspective view which showed the back side of the coating | coated member of the subunit | mobile_unit shown in FIG. It is the figure which showed the example of operation of the subunit | mobile_unit of the intercom which concerns on one Embodiment of this invention, Comprising: It is a mode before a coating | coated member is pressed with a finger | toe. It is the figure which showed the operation example of the subunit | mobile_unit of the intercom which concerns on one Embodiment of this invention, Comprising: It is a mode when a coating | coated member is pressed with the finger | toe.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Subunit 3 Speaker 4 Microphone 10 Cover member 11 Opening 12 Opening 14 Recess 16 Spring 18 Protruding piece 20 Base body 21 Press rod 22 U-shaped rocking member 23 Protrusion 23a Recess 24 Protrusion 26a Opening 26b Surrounding wall 27a Opening 27b Surrounding wall 30 Substrate

Claims (5)

A base body,
A covering member that acts as a push button that covers the entire base body and is movable between a first position and a second position at least partially away from the base body than in the first position. When,
A speaker for outputting sound;
And a microphone for inputting voice,
The covering member has an elastic member that urges the at least part of the covering member in a direction away from the base body, and when moving in the direction from the second position toward the first position, Move against the urging force of the elastic member,
The intercom handset is characterized in that the base phone is called by moving the covering member from the second position to the first position.   When the covering member is located at the second position, the distance from the base body is equal in any part of the covering member, and when the covering member is located at the first position, the part of the covering member is the same. 2. The intercom slave unit according to claim 1, wherein the interphone slave unit swings about a swinging shaft so that a distance from the base body is smaller than in the second position. The switch further includes a switch that is disposed on the side opposite to the covering member with respect to the base body and serves as a trigger for calling the master unit.
The base body has a hole formed in a portion covered with the covering member, and a pressing rod inserted into the hole,
The interphone according to claim 1 or 2, wherein the switch is pressed against the pressing rod by the covering member moved from the second position to the first position pressing the pressing rod. Cordless handset. The speaker and the microphone are disposed on the side opposite to the covering member with respect to the base body,
The covering member and the base body each have an opening for allowing the sound output from the speaker to pass therethrough and an opening for allowing the sound input to the microphone to pass through.
The interphone handset according to any one of claims 1 to 3, wherein a surrounding wall is formed in the base body so as to surround each of the openings. The base body is formed with a protrusion having a recess opened in a direction orthogonal to the direction from the second position toward the first position on the surface facing the covering member.
The covering member is provided with a protruding piece protruding in a direction orthogonal to the direction from the second position toward the first position,
The protruding piece is inserted into the concave portion of the protruding portion, and moves in the concave portion as the covering member moves between the second position and the first position. The intercom handset according to any one of claims 1 to 4.

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