JP6425068B2 - Time switch - Google Patents

Description

  The present invention relates to time switches.

  Conventionally, a motor type time switch is known as one of time switches (Patent Document 1). The motor type time switch transmits the rotation of the motor to the dial via the train wheel device (timer mechanism unit), and rotationally drives the dial to rotate once in 24 hours, for example. On the front of the dial that rotates once in 24 hours, a time scale indicating each time of the day is displayed in the circumferential direction. Then, the setting element is attached to the outer peripheral portion of the dial in accordance with the position of the time scale which coincides with the desired setting time with respect to the dial, and the setting element is rotated along with the rotation of the dial.

  Soon, when the set time set by the rotating setter coincides with the current time measured by the timer mechanism, the switch mechanism is operated by the claws formed on the setter. The switch mechanism operated by the claws of the setting element drives a contact spring for opening and closing the feed path (conductor) to close or open the feed path.

  Thus, the motor-type time switch switches the power supply of the commercial power supply to the load (electric equipment) at a desired set time.

Japanese Utility Model Publication No. 62-126043

  By the way, in the conventional motor type time switch, the motor, the timer mechanism, the dial, the feeding path, the contact spring, the switch mechanism and the like are assembled and manufactured in order while being assembled in the housing. Therefore, since various parts have to be assembled individually in a limited narrow space inside the vessel, it is a fine assembly operation, which is a very troublesome and time-consuming assembly operation. In particular, the assembly operation by the soldering operation required much labor.

  In addition, since it is necessary to individually assemble various parts in the vessel, it is difficult to control the kind of assembly parts because the number of assembly steps is large and the number of parts in each assembly process is large. .

Moreover, due to the large number of assembling steps, foreign substances such as dust, dust, solder dust and the like generated in each assembling process may remain in the container and may be accumulated.
The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide a time switch capable of simplifying assembly and facilitating variety management of assembly parts.

  In order to solve the above problems, a time switch sets a motor, a timer mechanism which is driven by the motor and counts time, and times of start and stop of power supply to a load with respect to the timer mechanism. A terminal block having setting means, an external power supply connection terminal electrically connected to an external power supply, and a load connection terminal electrically connected to the load, and a feed path from the external power supply connection terminal to the load connection terminal The electric conductor, the opening / closing means electrically connected to the electric conductor to open and close the electric supply path, and the electric supply start time or electric supply stop time set by the setting means coincide with the current time measured by the timer mechanism unit A switch mechanism section for driving the switching means to close or open the feed path when the switch means is a time switch housed in a housing, the terminal block, and And body, and said switching means is a module, by attaching the module to the device body, said terminal block, said conductor, said switching means is characterized in that it is configured incorporated collectively.

  According to the present invention, assembly can be simplified, and at the same time, variety management of assembly parts can be facilitated.

The front view of the time switch which removed the protective cover. The front view of the time switch which removed the protective cover and the front cover. The perspective view of the time switch which removed the protective cover and the front cover. The bottom view of the time switch which removed the protective cover. Left sectional view of a time switch. Explanatory drawing explaining arrangement | positioning of a gear mechanism and load side and a power source side contact point spring. The rear view of the time switch which removed the back cover. The perspective view of the setting element for ON. The perspective view of the setting element for off. Front view of the module. The partially broken side view of a module.

First Embodiment
The time switch will be described below with reference to FIGS.
As shown in FIGS. 1 to 5, the time switch 1 has a substantially square box-like container 2. The container 2 is composed of a case 3 opened at the rear side and a back cover 5 (see FIG. 5) closing the rear opening 4 of the case 3.

  Also, as shown in FIG. 2 and FIG. 3, four each having an opening communicating with the inside of the case 3 at the lower side of the front surface f1 of the case 3 and in the width direction (left and right direction in FIG. The first to fourth recesses 6a to 6d are formed. The first to fourth concave portions 6a to 6d are formed by cutting out a part of the front surface f1 of the case 3 and a part of the lower surface f2 of the case 3 in a concave shape. Further, a first partition wall 7a divides the space between the first recess 6a and the second recess 6b, and a second partition wall 7b divides the space between the third recess 6c and the fourth recess 6d. Furthermore, the third partition wall 7c divides the space between the second recess 6b and the third recess 6c.

  Then, as shown in FIG. 5, the first to fourth recesses 6 a to 6 d are closed by the front lid 9. The front lid 9 is fixed to the third partition wall 7c with a mounting screw N1 so that the front surface thereof is flush with the front surface f1 of the case 3. At this time, as shown in FIG. 4, the first to fourth concave portions 6 a to 6 d, which are the lower surface f 2 of the case 3, are closed in a state in which the front lid 9 partially opens. Thus, the wiring insertion port 10 is formed on the lower surface f2 of the case 3 corresponding to the first to fourth concave portions 6a to 6d.

(Dial D: timer mechanism 20)
A transparent protective cover 11 (see FIG. 5) is detachably attached to the front side of the case 3 including the front lid 9 and the dial D disposed on the front face f1 of the case 3 can be visually recognized through the protective cover 11 It is supposed to be. On the front face f1 of the case 3, a dial accommodating recess 12 having a circular shape and an inner diameter larger than the outer diameter of the dial D is recessed, and the dial D is rotatably accommodated in the accommodating recess 12.

  As shown in FIG. 5, the dial D has a dial main body Da formed in a double cylindrical shape whose front side is closed and an annular attachment annular body Db surrounding the outer peripheral surface of the dial main body Da at a constant interval. doing. The dial body Da and the mounting annular body Db are connected to each other at their rear end outer peripheral portions, and they are integrally formed of a synthetic resin. Therefore, the dial body Da and the mounting ring Db rotate integrally.

On the annular front surface of the dial main body Da formed in a double cylindrical shape, time scales (not shown) indicating the respective times of 24 hours a day are displayed at equal intervals in the circumferential direction.
As shown in FIG. 5, a disc-shaped time index plate 13 is disposed inside the dial body Da so as to close the opening and partially overlap the annular front surface of the dial body Da. There is. The time index plate 13 is supported and fixed by a support member 14 extending from the bottom surface of the dial housing recess 12, and a current time index 13a indicating the current time is displayed on the front surface thereof. Therefore, the dial D is accommodated in the dial accommodation recess 12 rotatably around the center of the time index plate 13 as the rotation center.

  As shown in FIG. 3, a window hole 12a is formed through the inner peripheral surface of the dial housing recess 12 in the direction indicated by the current time index 13a displayed on the time index plate 13. . Then, first and second detection cams 73 and 74 of a switch mechanism 71 described later enter and exit into the dial accommodation recess 12 from the window hole 12a.

  The mounting annular body Db is provided with a pair of mounting grooves 15 at equal intervals in the circumferential direction on the inner and outer peripheral surfaces thereof. The portion of the mounting groove 15 on the inner peripheral surface side of the mounting annular body Db is referred to as an inner groove portion 15a, and the portion on the outer peripheral surface side of the mounting annular body Db is referred to as an outer groove portion 15b. In the present embodiment, the attachment grooves 15 formed at equal intervals in the circumferential direction correspond to time scales (not shown) indicating the respective times of 24 hours a day displayed on the annular front surface of the dial main body Da. It is formed in the position of every 15 minutes of those time. Therefore, 96 mounting grooves 15 are formed, and the 96 mounting grooves 15 are formed at an equal pitch.

  The dial D consisting of the dial main body Da and the mounting annular body Db rotates the dial housing recess 12 once in 24 hours by the gear mechanism 21 constituting the timer mechanism 20 together with the dial D provided in the case 3 It is designed to be driven to rotate.

  Therefore, the dial D is rotated in the direction of the arrow shown on the time index plate 13. Then, the current time is set by aligning the time scale displayed on the dial main body Da corresponding to the current time with the current time index 13 a of the time index plate 13. Thereafter, when the time scale displayed on the dial body Da passes circumferentially outward of the current time index 13a of the time index plate 13, the time scale of the dial body Da indicated by the current time index 13a from time to time is It is the current time.

(Gear mechanism 21: Timer mechanism unit 20)
As shown in FIG. 6, at the inner bottom surface f3 of the case 3 and at a position corresponding to the bottom surface of the dial receiving recess 12, a storage space S1 is defined by the first partition wall W1. Further, as shown in FIG. 7, the storage space S <b> 1 partitioned and formed by the first partition wall W <b> 1 is closed by the base plate 23 on which the motor M composed of an AC motor is mounted.

  Then, as shown in FIG. 6, the gear mechanism 21 is disposed and assembled in the storage space S1 closed by the base plate 23. The gear mechanism 21 rotates the dial D (dial main body Da) once in 24 hours based on the rotation of the motor M.

  The gear mechanism 21 is a known gear train device configured by a plurality of gears. Therefore, in the present embodiment, the details of the configuration of the gears of the gear mechanism 21 and the connection structure between the motor M and the dial main body Da will be omitted. The gears of the gear mechanism 21 are disposed in the storage space S1 via the motor M and the ground plate 23, and are assembled to the inner bottom surface f3 of the case 3 and the ground plate 23.

(On and off setting elements 30, 40: setting means)
As shown in FIG. 1 to FIG. 3, the on setter 30 and the off setter 40 are alternatively selected in each of the mounting grooves 15 formed at equal intervals (every 15 minutes) on the mounting annular body Db of the dial D. It is attached to. The on setter 30 is a setter for setting the time for supplying commercial power to the load (electrical device), and the off setter 40 is for shutting off the commercial power supplied to the load (electrical device). Is a setter that sets the time of day.

(On for setting 30)
As shown in FIG. 8, the ON setting element 30 has a pointing piece 31 having a triangular tip, and a pair of inner leg pieces 32 and outer leg pieces projecting in parallel from one side surface (lower face) of the pointing piece 31. 33 is integrally molded of a synthetic resin. A knob 34 is provided on the upper surface of the indication piece 31, and a mark 35 indicating the on setting element 30 is engraved on the upper surface of the knob 34. Further, an inner protrusion 36 is formed in the longitudinal direction on the surface of the inner leg 32 opposite to the outer leg 33. Further, an outer protrusion 37 is formed in the longitudinal direction on the surface of the outer leg 33 opposite to the inner leg 32, and a retaining projection 38 is formed on the tip of the outer protrusion 37. It is protrudingly formed. Furthermore, an on-operation actuating claw 39 is formed so as to project substantially at a position between the outer leg 33 and the surface opposite to the surface opposed to the inner leg 32 and on the opposite side.

  Then, the on-setting member 30 picks the knob 34 so that the inner projection 36 projects from the inner groove 15 a of the mounting groove 15 so that the pointing piece 31 faces the triangular main body Da. The ring 37 is mounted on the mounting ring Db so as to fit the outer groove 15b of the mounting groove 15. At this time, the outer leg 33 is slightly bent radially outward by the retaining projection 38 formed on the tip of the outer leg 33. Then, when the retaining projection 38 reaches the outer peripheral edge of the mounting annular body Db, the outer leg piece 33 elastically returns and the retaining projection 38 engages with the back surface of the mounting annular body Db.

  The ON setting element 30 is a position where the triangular tip of the indication piece 31 is a time scale displayed by the dial body Da and corresponds to a start time at which commercial power is supplied to a load (electric equipment). Mounted in the mounting groove 15 of the

  Therefore, the on-setter 30 mounted in the mounting groove 15 is co-rotated with the dial D. Soon, the time scale (feed start time) of the dial main body Da pointed by the on setting element 30 matches the current time. That is, the time scale of the dial body Da pointed by the on setting element 30 and the current time index 13 a of the time index plate 13 are combined. Then, the switch mechanism section 71 (a first detection cam 73 described later entering into the recess 12 from the window hole 12a of the dial accommodation recess 12) operates by the action of the on-operation operation claw 39 formed in the outer leg 33. It operates to start the supply of commercial power to the load.

(Setting for off 40)
As shown in FIG. 9, the off setter 40 has a pointing piece 41 having a triangular tip, and a pair of inner leg pieces 42 and outer leg pieces projecting in parallel from one side surface (lower face) of the pointing piece 41. 43 is integrally molded of a synthetic resin. A knob 44 is provided on the top surface of the instruction piece 41, and a mark 45 indicating the off setting element 40 is engraved on the top surface of the knob 44. Further, an inner protrusion 46 is formed in the longitudinal direction on the surface of the inner leg 42 opposite to the outer leg 43. Further, an outer protrusion 47 is formed in the longitudinal direction on the surface of the outer leg piece 43 opposite to the inner leg piece 42, and a retaining projection 48 is formed on the tip of the outer protrusion 47. It is protrudingly formed. Furthermore, an off-operating actuating claw 49 is formed to project from the tip of the outer leg 43 and the surface opposite to the surface facing the inner leg 42.

  Then, the off-setting member 40 picks the knob 44 so that the pointing piece 41 faces the triangular tip toward the dial main body Da side, and the inner protrusion 46 is attached to the inner groove portion 15a of the mounting groove 15 The mounting ring 47 is mounted on the mounting annular body Db so as to be fitted into the outer groove portion 15b of the mounting groove 15. At this time, the outer leg 43 is slightly bent radially outward by the retaining projection 48 formed at the tip of the outer leg 43. Then, when the retaining projection 48 reaches the outer peripheral edge of the mounting annular body Db, the outer leg piece 43 elastically returns and the retaining projection 48 engages with the rear surface of the mounting annular body Db.

  The setter 40 for turning off is a mounting groove at a position where the triangular tip of the indication piece 41 is a time scale displayed by the dial main body Da and indicates a time scale corresponding to a time when power supply to the commercial power supply is stopped with respect to the load. It is attached to 15.

  Accordingly, the off setter 40 mounted in the mounting groove 15 is co-rotated with the dial D. Soon, the time scale (feed stop time) of the dial body Da pointed to by the off setter 40 matches the current time. That is, the time scale of the dial body Da pointed by the off setting element 40 and the current time index 13 a of the time index board 13 are combined. Then, the switch mechanism section 71 (a second detection cam 74 described later entering into the recess 12 from the window hole 12a of the dial accommodation recess 12) by the action of the off-operation actuating claw 49 formed in the outer leg 43 Operate to stop the supply of commercial power to the load.

(Terminal block B)
As shown in FIGS. 2 and 3, in the space formed between the first to fourth recesses 6a to 6d formed in the case 3 and the back cover 5, each of the first to fourth recesses 6a to 6d is formed. A terminal block B for closing the opening is disposed. As shown in FIG. 6, the terminal block B is made of synthetic resin and has a rectangular column shape long in the width direction (left and right direction), and the openings of the first to fourth concave portions 6a to 6d from the inside of the case 3 It is arranged and fixed so as to be closed.

  As shown in FIG. 6, in the terminal block B, a through hole 51 is formed at an intermediate position in the width direction. As shown in FIG. 5, the terminal block B has a through hole 51 through which a support 52 formed protruding on the rear surface (surface on the back lid 5 side) of the third partition wall 7c is inserted and the left and right sides are screwed. It is assembled and fixed to the case 3 at N2.

(Terminal 53: External power supply and load connection terminal)
As shown in FIGS. 2 and 3, in the terminal block B, four terminal fittings 53 are attached to the terminal block B so as to be able to be tightened with a connecting screw N3. When the terminal block B is assembled and fixed to the case 3, the four terminal fittings 53 are fastened to positions where their base end portions are disposed in the corresponding first to fourth concave portions 6 a to 6 d respectively. It is worn. Then, when the four terminal fittings 53 are fastened by the connecting screw N3, as shown in FIGS. 6 and 7, the tip end portion excluding the base end portion is disposed in the case 3.

  Here, for convenience of explanation, with respect to the four terminal fittings 53, in FIG. 2, from the left side, the first power supply side connection terminal 53a, the second power supply side connection terminal 53b, the second load side connection terminal 53c, and the first load side connection It is called terminal 53 d. Accordingly, when viewed from the back side of the case 3, the first power supply side connection terminal 53a, the second power supply side connection terminal 53b, the second load side connection terminal 53c, and the first load side are viewed from the right in FIGS. It becomes connection terminal 53d.

  The proximal end portion of the first power supply side connection terminal 53a is electrically connected to one of the wires of an external power supply line (not shown) for supplying commercial power by being tightened by a connecting screw N3. Further, the base end portion of the second power supply side connection terminal 53b is fastened to the other wire of the external power supply line for supplying commercial power supply by the connecting screw N3 and electrically connected.

  On the other hand, the base end of the first load-side connection terminal 53d is fastened to one of the wires of a load power supply line (not shown) for supplying commercial power to the load (electric equipment) by the connecting screw N3 Connected to The base end of the second load-side connection terminal 53c is electrically connected to the other wire of the power supply line for supplying commercial power to the load (electrical device) by being tightened by the connecting screw N3.

  And each wiring of the load power supply line for feeding commercial power supply clamped to the base end of the first and second power supply side connection terminals 53a, 53b is a case 3 corresponding to the first and second concave portions 6a, 6b. Is pulled out from the wiring insertion port 10 formed on the lower surface f2 of the Similarly, the wiring of the load power supply line for supplying commercial power to the loads (electrical devices) clamped to the base ends of the first and second load-side connection terminals 53d, 53c is the third and fourth recess 6c. , 6 d are drawn out from the wiring insertion port 10 formed on the lower surface f 2 of the case 3.

  As shown in FIG. 7, the first power supply side connection terminal 53 a is connected to a conducting wire 55 whose tip is connected to one input terminal P 1 of the motor M mounted on the ground plate 23. Further, the second power supply side connection terminal 53 b is electrically connected at its front end portion to the input terminal provided on the circuit board 56 on which the circuit element of the drive circuit of the motor M is mounted by soldering. The circuit board 56 on which the circuit elements of the drive circuit are mounted has the output terminal provided on the circuit board 56 connected to the other input terminal P2 of the motor M via the resistance element 57.

  That is, the drive circuit mounted on the circuit board 56 generates a drive signal for driving the motor M with the commercial power supplied from the external power supply line. Then, the motor M is driven by the generated drive signal.

(Load side and power supply side contact springs 63, 64: opening and closing means)
As shown in FIG. 6, a leaf spring pinching member 61 is formed to project from the inner bottom surface f3 of the case 3 on the inner bottom surface of the case 3 and on the left side of the storage space S1 partitioned by the first partition wall W1. ing. The plate spring holding body 61 is formed with a crank-like bending groove 62 which is symmetrical to the left and right. In FIG. 6, the load-side contact spring 63 is press-fitted and fixed to the left bending groove 62, and the power-side contact spring 64 is press-fixed to the right bending groove 62.

  As shown in FIG. 6, the load side and power source side contact springs 63 and 64 are both strip-like metal plates, and their base end portions are formed in a crank shape. The load-side and power-supply-side contact springs 63 and 64 are disposed such that the wide surfaces thereof are orthogonal to the inner bottom surface of the case 3. At this time, the load-side and power-supply-side contact springs 63 and 64 are press-fit into the respective bending grooves 62 formed in a crank shape in the plate spring holding body 61 with respect to the inner bottom face f3 of the case 3 It is fixed.

  The proximal ends of the load side and power supply side contact springs 63 and 64 press-fitted and fixed in the bending groove 62 are exposed from the respective bending grooves 62 to the terminal block B side, and the exposed portions It is connected with 65, 66 and solder respectively. The other end of the load lead wire 65 connected by solder to the base end exposed portion of the load contact spring 63 is connected by solder to the tip of the first load connection terminal 53 d. On the other hand, the other end of the power source lead wire 66 connected by solder to the base end exposed portion of the power source contact spring 64 is connected by solder to the tip end portion of the first power source connection terminal 53a.

  Therefore, the load-side contact spring 63 and the first load-side connection terminal 53 d are electrically connected via the load-side lead wire 65. Similarly, the power source side contact spring 64 and the first power source side connection terminal 53 a are electrically connected via the power source side lead wire 66.

  As shown in FIGS. 6 and 7, the tip of the second power supply side connection terminal 53 b and the tip of the second load side connection terminal 53 c are electrically connected to each other through a shorting conductor 67. That is, at both ends of the shorting conductor 67, the tip of the second power supply side connection terminal 53b and the tip of the second load side connection terminal 53c are connected by solder.

  On the other hand, the proximal end portions of the load-side and power-supply-side contact springs 63, 64, which are press-fitted and fixed in the respective bending grooves 62, extend from the bending grooves 62 and the extending portions become flexible free ends. There is. The load side contact 63 a and the power supply side contact 64 a are disposed and fixed to the flexible extension portion so as to face each other. Therefore, when the free ends of the load side and power supply side contact springs 63 and 64 are bent and the load side contact 63a and the power supply side contact 64a contact, the load side contact spring 63 and the power supply side contact spring 64 are electrically connected Closed).

  As shown in FIG. 11, a first engagement portion 63b is formed so as to extend from the tip of the flexible extension portion of the load-side contact spring 63 to a half closer to the inner bottom surface f3 of the case 3 in the wide direction. ing. On the other hand, as shown in FIG. 11, a second engagement portion 64b is formed so as to extend from the tip of the flexible extension portion of the power source side contact spring 64 to the half close to the back cover 5 in the wide direction. There is. The first engaging portion 63b and the second engaging portion 64b are formed so as not to overlap with each other when viewed from the surface direction of the contact springs 63, 64, as shown in FIG.

  The first engagement portion 63 b of the load-side contact spring 63 and the second engagement portion 64 b of the power-side contact spring 64 are operated by the switch mechanism portion 71. As a result, the load side contact 63a and the power supply side contact 64a are disposed at a position where they are separated (open) and in contact with each other (closed) by appropriately bending the load side and power supply side contact springs 63, 64. It is supposed to be

(Switch mechanism 71)
As shown in FIG. 6, at the inner bottom surface f3 of the case 3 and at a position adjacent to the storage space S1, a storage space S2 is defined by the second partition wall W2. Further, as shown in FIG. 7, the accommodation space S <b> 2 partitioned and formed by the second partition wall W <b> 2 is closed by the support plate 70. Then, as shown in FIG. 6, the switch mechanism 71 is disposed and assembled in the accommodation space S2 closed by the support plate 70.

As shown in FIG. 6, the switch mechanism portion 71 has a cam shaft 72, and the cam shaft 72 is rotatably supported between the support plate 70 and the inner bottom surface f 3 of the case 3.
(First and second detection cams 73, 74)
As shown in FIG. 3, four first detection cams 73 are fixed to the cam shaft 72. The first detection cams 73 enter the inside of the dial accommodation recess 12 through the window hole 12a formed in the inner peripheral surface of the dial accommodation recess 12. There is. Each of the four first detection cams 73 fixed to the cam shaft 72 is formed to project in the radial direction at a constant interval (90 degrees) in the circumferential direction, and one of the four first detection cams 73 is It enters into the dial housing recess 12.

  One first detection cam 73 that has entered the inside of the dial housing recess 12 is disposed on the orbit of the on-operation actuating claw 39 formed on the on-setting element 30 that rotates with the rotation of the dial D. Be done. As a result, when the on-operation actuating claw 39 of the on-setter 30 circulates and abuts on the first detection cam 73 entering the dial housing recess 12, the first detection cam 73 (cam shaft 72) It is rotated by the on-operation actuating claw 39.

  Further, as shown in FIG. 3, the cam shaft 72 is arranged parallel to the first detection cam 73 and enters the dial housing recess 12 from a window hole 12 a formed through the inner peripheral surface of the dial housing recess 12. The four second detection cams 74 are fixed. Each of the four second detection cams 74 fixed to the cam shaft 72 is formed to project radially at a constant interval (90 degrees) in the circumferential direction, and one of the four second detection cams 74 is It enters into the dial housing recess 12.

  The one second detection cam 74 which has entered the inside of the dial housing recess 12 is disposed on the orbit of the off-operation actuating claw 49 formed on the off-setting element 40 which rotates with the rotation of the dial D. Be done. As a result, when the off-operation actuating claw 49 of the off-setting element 40 circulates and abuts on the second detection cam 74 entering into the dial accommodation recess 12, the second detection cam 74 (cam shaft 72) It is pivoted by the operation actuating claw 49.

Here, the four first detection cams 73 and the four second detection cams 74 are alternately arranged at an interval of about 45 degrees when viewed from the axial direction of the cam shaft 72.
Then, for example, when the first detection cam 73 is rotated by the on-operation operation claw 39, the first detection cam 73 retracts outward from the window hole 12a in the radial direction, and the first detection cam 73 is adjacent to the circumferential direction as viewed from the axial direction. The detection cam 74 enters the dial housing recess 12 through the window hole 12a. Eventually, when the second detection cam 74 is pivoted by the off-operation actuating claw 49, the second detection cam 74 retracts outward from the window hole 12a in the radial direction, and a new second adjacent to the circumferential direction seen from the axial direction The first detection cam 73 enters the dial housing recess 12 through the window hole 12 a. Thereafter, the cam shaft 72 is rotated by 45 degrees each time the on-operation actuating claw 39 and the off-actuating claw 49 alternately abut on the corresponding first and second detection cams.

  In other words, when the time scale of the dial main body Da indicated by the on and off setting elements 30 and 40 is aligned with the current time index 13 a of the time index plate 13, the cam shaft 72 rotates.

(First and second switch cams 75, 76)
Further, as shown in FIG. 6, four first switch cams 75 are fixed to the cam shaft 72 so as to protrude in the radial direction at regular intervals (90 degrees) in the circumferential direction. The first switch cams 75 rotate around the cam shaft 72. That is, the first switch cam 75 rotates when the cam shaft 72 rotates. When the first switch cam 75 rotates around the cam shaft 72, the first switch cam 75 contacts the first engaging portion 63b of the load contact spring 63 to bend the load contact spring 63.

  Furthermore, as shown in FIG. 6, four cam shafts 72 are provided in parallel with the first switch cam 75 and are formed so as to protrude in the radial direction at a constant interval (90 degrees) in the circumferential direction. The second switch cam 76 is fixed. The second switch cams 76 rotate around the cam shaft 72. That is, the second switch cam 76 rotates when the cam shaft 72 rotates. When the second switch cam 76 rotates about the cam shaft 72, the second switch cam 76 abuts against the second engaging portion 64b of the power source contact spring 64 to bend the power contact spring 64.

  Therefore, the inner bottom surface f3 of the case 3 and the support plate 70 are disposed such that the cam shaft 72 is disposed at a position where the first and second detection cams 73 and 74 abut on the on and off operation claws 39 and 49, respectively. And is rotatably supported therebetween. Moreover, the cam shaft 72 is disposed at the inner bottom surface f3 of the case 3 and the support plate such that the first and second switch cams 75 and 76 are in contact with the first and second engaging portions 63b and 64b, respectively. It is rotatably supported between 70 and 70.

Here, the four first switch cams 75 and the four second switch cams 76 are alternately arranged at an interval of about 45 degrees when viewed from the axial direction of the cam shaft 72.
Further, the relative arrangement position of the first and second switch cams 75 and 76 is determined by the rotation of the first and second detection cams 73 and 74 so that the load-side contact 63 a is generated by the first and second switch cams 75 and 76. And the power supply side contact 64a are arranged relative to each other so as to contact and separate.

  That is, when the cam shaft 72 is rotated 45 degrees by the first detection cam 73, the load side contact 63a to which the load side and power supply side contact springs 63 and 64 are fixed is brought into contact with the power supply side contact 64a. Further, when the cam shaft 72 is rotated 45 degrees by the second detection cam 74, the load side contact 63a and the power supply side contact 64a to which the load side and power supply side contact springs 63 and 64 are fixed are separated.

  If it explains in full detail, load side contact 63a to which load side and power supply side contact point springs 63 and 64 are fixed and power supply side contact 64a are separated (open). At this time, the load-side contact spring 63 is bent in such a direction that the first engagement portion 63 b engages with the first switch cam 75 and separates from the power-side contact spring 64. On the other hand, the power source contact spring 64 is in a state where the second engagement portion 64 b is in contact with the second switch cam 76 in a state where the power contact spring 64 is not bent.

  When the load side contact 63 a and the power supply side contact 64 a are separated (opened), the first detection cam 73 enters into the dial accommodation recess 12 from the window hole 12 a. On the other hand, the second detection cam 74 is retracted to the outside of the dial accommodation recess 12.

  Then, when the feed start time comes, the first detection cam 73 is turned by the on operation claw 39 of the on setter 30, that is, when the cam shaft 72 is turned clockwise as viewed from the rear, The 1st and 2nd switch cams 75 and 76 also rotate. Along with this, the load-side contact spring 63 returns from the state in which the first engagement portion 63b is separated from the contact of the first switch cam 75 and flexed to the original state. On the other hand, the second engagement portion 64 b of the power source contact spring 64 is pushed by the second switch cam 76 and is bent toward the load contact spring 63. As a result, the load-side contact 63a fixed to the load-side and power-supply-side contact springs 63 and 64 comes into contact with the power-side contact 64a.

  When the load-side contact 63a and the power-supply-side contact 64a contact (close), the second detection cam 74 enters the dial housing recess 12 through the window hole 12a instead of the first detection cam 73.

  Subsequently, when the feed stop time comes, the second detection cam is rotated by the OFF operation claw 49 of the OFF setter 40, that is, when the cam shaft 72 is rotated clockwise as viewed from the rear, The 1st and 2nd switch cams 75 and 76 also rotate. Along with this, the power source contact spring 64 abuts on the second switch cam 76 next to the second switch cam 76 whose second engagement portion 64 b has abutted until now. On the other hand, the load-side contact spring 63 is bent in a direction in which the first engagement portion 63 b is pushed by the first switch cam 75 and separated from the power-side contact spring 64. As a result, the load-side contact 63 a and the power-side contact 64 a that are fixed to the load-side and power-side contact springs 63 and 64 separate from each other.

Next, a method of assembling the time switch 1 configured as described above will be described.
10 and 11 show a module 80 assembled to the inside of the case 3. The module 80 is prefabricated at another location.

  The module 80 has a terminal block B and four terminal fittings 53. Then, the four terminal fittings 53 are fastened in order in the longitudinal direction to the terminal block B by the connecting screw N3. Thus, in FIG. 10, four terminal fittings 53 from the right side become the first power supply connection terminal 53a, the second power supply connection terminal 53b, the second load connection terminal 53c, and the first load connection terminal 53d. A terminal block B which is fastened and attached is produced.

  The module 80 also has a load-side contact spring 63 having a load-side contact 63 a and a power-side contact spring 64 having a power-side contact 64 a. The load-side contact spring 63 is electrically connected to the first load-side connection terminal 53 d attached to the terminal block B via the load-side lead wire 65. That is, both ends of the load-side lead wire 65 are connected to the load-side contact spring 63 and the first load-side connection terminal 53 d by soldering. On the other hand, the power source side contact spring 64 is electrically connected to the first power source side connection terminal 53 a attached to the terminal block B via the power source side lead wire 66. That is, both ends of the power supply lead wire 66 are soldered to the power supply contact spring 64 and the first power supply connection terminal 53a, respectively.

  In addition, the tip of the second power supply side connection terminal 53 b and the tip of the second load side connection terminal 53 c are electrically connected via the shorting conductor 67. That is, both ends of the shorting conductor 67 are soldered to the second power supply side connection terminal 53b and the second load side connection terminal 53c, respectively.

  Furthermore, the module 80 has a ground plane 23 on which the motor M is mounted and a circuit board 56 on which a drive circuit is mounted. The output terminal formed on the circuit board 56 on which the drive circuit is mounted and the other input terminal P2 of the motor M mounted on the ground plane 23 are electrically connected via the resistance element 57. That is, both ends of the resistive element 57 are respectively connected to the output terminal formed on the circuit board 56 and the input terminal P2 of the motor M by soldering.

  Then, in the circuit board 56, the input terminal of the drive circuit formed on the circuit board 56 is directly connected and electrically connected to the end of the second power supply side connection terminal 53b with solder. Further, one input terminal P1 of the motor M mounted on the ground plate 23 is connected to the first power supply side connection terminal 53a attached to the terminal block B through the conducting wire 55. That is, both ends of the conducting wire 55 are connected to the first power supply side connection terminal 53a and one input terminal P1 of the motor M by soldering.

  Thus, the terminal block B to which the terminal fitting 53 is attached, the load-side and power-supply-side contact springs 63 and 64, the ground plate 23 on which the motor M is mounted, and the circuit board 56 on which the drive circuit is mounted are integrally connected. The module 80 thus constructed is manufactured.

  Then, in a state where the module 80 is manufactured, the dial D is assembled to the dial accommodation recess 12 of the case 3. The switch mechanism 71 such as the cam shaft 72, the first and second detection cams 73 and 74, and the first and second switch cams 75 and 76 are assembled in the housing space S2 formed inside the case 3. Further, the gear mechanism 21 constituting the timer mechanism unit 20 is assembled to the storage space S1 formed inside the case 3.

Then, when the gear mechanism 21 and the switch mechanism portion 71 are assembled in the housing space S1 and the housing space S2, respectively, the module 80 is assembled in the case 3.
That is, for the terminal block B constituting the module 80, the terminal block B is assembled to the case 3 from the inside of the case 3 so as to close the openings of the first to fourth concave portions 6a to 6d. More specifically, a support 52 (see FIG. 5) protrudingly formed on the rear surface (the surface on the back lid 5 side) of the third partition wall 7c is inserted into the through hole 51 formed in the terminal block B. The terminal block B is assembled to the case 3 by fixing the left and right sides of the terminal block B to the case 3 with screws N2.

  Further, with regard to the load side and power source side contact springs 63, 64 constituting the module 80, the two contact springs 63, 64 are shown in FIG. It is press-fitted and fixed in a symmetrical crank-like bending groove 62. More specifically, the load-side and power-supply-side lead wires 65 and 66 are bent in the arrow direction shown in FIG. 11, and the load-side and power-supply-side contact springs 63 and 64 are press-fit into the bilaterally symmetrical bending grooves 62. At this time, the first and second engaging portions 63b and 64b of the load side and power source side contact point springs 63 and 64 are disposed at positions where they can be engaged with the first and second switch cams 75 and 76 of the switch mechanism 71. Be done. Then, when the load side and power source side contact point springs 63 and 64 are press-fit into the bending groove 62, the accommodation space S 2 accommodating the switch mechanism portion 71 is closed by the support plate 70. The load side and power source side contact springs 63 and 64 are assembled to the case 3 by fixing the support plate 70 to the case 3 with the screw N4.

  Furthermore, the storage space S1 in which the gear mechanism 21 is stored is closed by the main plate 23 with respect to the main plate 23 on which the motor M constituting the module 80 is mounted. Then, the ground plate 23 on which the motor M is mounted is assembled to the case 3 by fixing the ground plate 23 to the case 3 with the screw N5. At this time, the circuit board 56 on which the drive circuit is mounted is also assembled to the case 3.

Then, after the module 80 is assembled inside the case 3, the back cover 5 is assembled to complete the time switch 1.
When the module 80 is assembled to the case 3, the order of assembling the terminal block B constituting the module 80, the load side and power supply side contact springs 63, 64 or the ground plate 23 is not particularly limited. .

Next, the operation of the time switch 1 configured as described above will be described.
Now, the dial D is rotated by the rotational force of the motor M via the gear mechanism 21 and rotationally driven by the gear mechanism 21 so as to make one rotation in 24 hours.

  The ON setting element 30 is mounted so that the triangular tip of the tip 31 of the indication piece 31 is positioned on the time scale of the dial main body Da corresponding to the power supply start time for supplying commercial power to the load (electric equipment). It is mounted on the mounting groove 15 of the annular body Db. In addition, the off-setter 40 has the triangular tip of the instruction piece 41 positioned on the time scale of the dial main body Da corresponding to the power supply stop time at which the supply of commercial power to the load (electrical device) is stopped. Is mounted on the mounting groove 15 of the mounting annular body Db.

  Therefore, when the time scale (feed start time) of the dial main body Da pointed by the on-use setting member 30 which is accompanied by the dial D and the current time index 13a of the time index board 13 are combined, Start feeding.

  That is, at the power feeding start time, the first detection cam 73 is rotated by the on operation claw 39 of the on setter 30, and the first and second switch cams 75 and 76 are also rotated. As a result, the load-side contact spring 63 returns to the original state from the state in which the first engagement portion 63 b is bent out of contact with the first switch cam 75. On the other hand, the second engagement portion 64 b of the power source contact spring 64 is pushed by the second switch cam 76 and is bent toward the load contact spring 63.

As a result, the load side contact 63a fixed to the load side and power supply side contact springs 63 and 64 comes into contact with the power supply side contact 64a. This starts power supply to the load.
At this time, in place of the first detection cam 73, the second detection cam 74 enters into the dial accommodation recess 12 from the window hole 12a. Therefore, power supply to the load is continued until the power supply stop time set by the off setter 40 matches the current time index 13 a of the time index plate 13.

  Eventually, when the time scale (power feed stop time) of the dial main body Da indicated by the OFF setting element 40 accompanied by the dial D and the current time index 13a of the time index plate 13 are combined, power is supplied to the load. Stop.

  That is, at the power supply stop time, the second detection cam is rotated by the OFF operation claw 49 of the OFF setter 40, and the first and second switch cams 75 and 76 are also rotated. As a result, the power source contact spring 64 abuts on the second switch cam 76 next to the second switch cam 76 whose second engagement portion 64 b has abutted until now. On the other hand, the load-side contact spring 63 is bent in a direction in which the first engagement portion 63 b is pushed by the first switch cam 75 and separated from the power-side contact spring 64.

As a result, the load-side contact 63 a and the power-side contact 64 a that are fixed to the load-side and power-side contact springs 63 and 64 separate from each other. This shuts off the power supply to the load.
At this time, instead of the second detection cam 74, the first detection cam 73 enters into the dial accommodation recess 12 from the window hole 12a. Therefore, power supply to the load is interrupted until the power supply start time set by the on setting element 30 matches the current time index 13 a of the time index plate 13.

Then, the time switch 1 repeats the same operation every day unless the on / off setting elements 30 and 40 are changed in setting thereafter.
Here, in the time switch 1 of the present embodiment, the terminal block B to which the terminal fitting 53 is attached, the load side and power supply side contact springs 63 and 64, the ground plate 23 on which the motor M is mounted, and the circuit board 56 on which the drive circuit is mounted. Are integrally connected to form a module 80.

  Then, the module 80 is assembled to the case 3 in which the timer mechanism 20 and the switch mechanism 71 are assembled. As a result, the terminal block B to which the terminal fitting 53 is attached, the load side and power supply side contact springs 63 and 64, the ground plate 23 on which the motor M is mounted, and the circuit board 56 on which the drive circuit is mounted are assembled at one time. 1 will be completed.

  That is, the time switch 1 can be easily completed simply by manufacturing the module 80 at another place in advance and assembling the module 80 manufactured at the other place in the case 3.

  In addition, at the stage of manufacturing the module 80 at another place, the soldering work of the conducting wire 55, the resistive element 57, the load side and power supply side lead wires 65, 66, the shorting conducting wire 67, etc. Therefore, the troublesome soldering work in the case 3 is eliminated, and moreover, there is no possibility that solder debris will remain in the case 3.

Next, the effects of the embodiment configured as described above will be described below.
(1) According to the above embodiment, the terminal block B with the terminal fitting 53 attached, the load side and power source side contact point springs 63 and 64, the ground plate 23 with the motor M mounted, and the circuit board 56 with the drive circuit mounted The module 80 is integrally connected.

  Then, only by assembling the module 80 in the case 3, the terminal block B with the terminal fitting 53 attached, the load side and power source side contact springs 63, 64, the ground plate 23 with the motor M mounted, and the circuit with the drive circuit mounted The substrates 56 were assembled in a batch.

Therefore, the assembly can be simplified, and the possibility that foreign substances such as dust and dirt generated when assembling the parts can be reduced can be reduced.
(2) According to the above-mentioned embodiment, the module 80 can be separately manufactured separately at another place in advance. Therefore, since only the module 80 manufactured alone at another place is assembled to the case 3, it is possible to easily control the kind of assembly parts.

  (3) According to the above embodiment, at the stage of manufacturing the module 80, the soldering work of the conducting wire 55, the resistance element 57, the load side and power supply side lead wires 65, 66, the shorting conductor 67, etc. is performed . As a result, troublesome soldering work in the case 3 is eliminated. Moreover, no solder debris will remain in the case 3 due to the soldering operation.

The above embodiment may be modified as follows.
In the above embodiment, the ground plate 23 on which the motor M is mounted and the circuit board 56 on which the drive circuit is mounted are components of the module 80. However, one or both of the ground plate 23 or the circuit board 56 may be omitted. , May be implemented.

  In the above embodiment, the motor M is an AC motor, but may be a quartz motor. When the motor M is a quartz motor, a battery for supplying power to the drive circuit may be mounted on the circuit board 56 on which the drive circuit is mounted.

  DESCRIPTION OF SYMBOLS 1 ... Time switch, 2 ... Container body, 3 ... Case, 4 ... Back side opening part, 5 ... Back cover, 6a-6d ... 1st-4th recessed part, 7a-7c ... 1st-3rd partition wall, 9 ... front cover, 10 ... wiring insertion port, 11 ... protection cover, 12 ... dial accommodation recess, 12 a ... window hole, 13 ... time index plate, 13 a ... current time index, 14 ... support member, 15 ... mounting groove, 15 a ... Inner groove, 15b: Outer groove, 20: Timer mechanism, 21: Gear mechanism, 23: Ground plate, 30: On setting element, 31: Indicator piece, 32: Inner leg, 33: Outer leg, 34: Pick Parts, 35 marks, 36 inner protrusions, 37 outer protrusions, 38 retaining projections, 39 operating claws for on, 40 setting members for off, 41 indicator pieces, 42 inner leg pieces, 43 ... Outside leg piece, 44 ... knob, 45 ... mark, 46 ... inside ridge, 47 ... outside ridge, 48 ... slip out 49, actuating claw for off, 51, a through hole, 52, a support, 53, a terminal fitting, 53a, 53b, first and second power supply side connection terminals, 53c, a second load side connection terminal, 53d, ... 1st load side connection terminal 55 lead wire 56 circuit board 57 resistance element 61 plate spring pinching body 62 bending groove 63, 64 load side and power source side contact spring (opening and closing means) 63a , 64a: Load side and power side contacts, 63b, 64b: first and second engaging portions, 65, 66: load side and power side lead wires (feed path, conductor), 67: shorting conductor, 70: support Plate 71: switch mechanism portion 72: cam shaft 73, 74: first and second detection cams 75, 76: first and second switch cams 80: module f1, front surface f2, lower surface f3 ... inner bottom surface, W1, W2 ... first and section walls, S1 ... storage empty , S2: accommodation space, D: dial, Da: dial body, Db: mounting ring, B: terminal block, P1, P2: input terminal, M: motor, N1: mounting screw, N2, N4, N5: screw, N3 ... Coupling screw.

Claims (4)

Motor,
A timer mechanism unit driven by the motor to measure time;
A setting unit configured to set, for the timer mechanism unit, the time to start and stop supplying power to the load;
A terminal block having an external power supply connection terminal electrically connected to an external power supply and a load connection terminal electrically connected to the load;
A conductor forming a feed path from the external power supply connection terminal to the load connection terminal;
Switching means electrically connected to the conductor to open or close the feed path;
A switch mechanism unit for driving the opening / closing means to close or open the feed path when the feed start time or feed stop time set by the setting means coincides with the current time counted by the timer mechanism unit; It is a time switch housed in the container,
The terminal block, the conductor, and the opening / closing means are modules, and the terminal block, the conductor, and the opening / closing means are integrated and configured by attaching the module to the container .
A time switch characterized in that the module integrally includes the motor and a circuit board on which a drive circuit of the motor is mounted . Motor,
A timer mechanism unit driven by the motor to measure time;
A setting unit configured to set, for the timer mechanism unit, the time to start and stop supplying power to the load;
A terminal block having an external power supply connection terminal electrically connected to an external power supply and a load connection terminal electrically connected to the load;
A conductor forming a feed path from the external power supply connection terminal to the load connection terminal;
Switching means electrically connected to the conductor to open or close the feed path;
A switch mechanism unit for driving the opening / closing means to close or open the feed path when the feed start time or feed stop time set by the setting means coincides with the current time counted by the timer mechanism unit; It is a time switch housed in the container,
The terminal block, the conductor, and the opening / closing means are modules, and the terminal block, the conductor, and the opening / closing means are integrated and configured by attaching the module to the container .
The conductor forming the feed path comprises a power supply lead wire forming a feed path on the external power supply side and a load side lead wire forming a feed path on the load side.
Opening and closing means for opening and closing the feed path comprises a power source contact spring electrically connected to the power source lead wire and a load contact spring electrically connected to the load lead wire.
The power source contact spring and the load contact spring are driven by the switch mechanism when the current supply start time measured by the timer mechanism unit coincides with the power supply start time or the power supply stop time set by the setting unit. A time switch characterized in that contacts provided respectively on the power supply side contact spring and the load side contact spring are brought into contact with and separated from each other to close or open the feed path . In the time switch according to claim 1 or 2 ,
The time switch is characterized in that the motor is a quartz motor, and the battery body has a power supply for the quartz motor. In the time switch according to any one of claims 1 to 3 ,
A time switch characterized in that the setting means is a dial which is rotated based on the time counting operation of the timer mechanism portion, and a setter which is detachably attached to the dial and which operates the switch mechanism portion.