JP4175018B2 - Automatic ice machine drive device and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a drive device for an automatic ice making machine mounted on a refrigerator or the like.
[0002]
[Prior art]
  Conventionally, a drive device for an automatic ice making machine mounted on a refrigerator transmits the rotation of a motor to an ice tray using a reduction gear as disclosed in Japanese Patent Laid-Open No. 2001-304733, and ice making is performed at a predetermined rotational position. What makes a plate twist and deicing is widespread, and will be described below with reference to the drawings.
[0003]
  FIG. 7 is a cross-sectional view showing a driving device of a conventional automatic ice making machine. Reference numeral 1 denotes a driving device. A motor 4 is arranged inside an upper case 2 and a lower case 3 forming an outer shell. The rotation of 4 is transmitted to the output shaft 6 by the reduction gear 5.
[0004]
  The output shaft 6 is connected to an ice tray (not shown), and the ice tray is rotated so as to be twisted at a predetermined position to release the ice.
[0005]
  The output shaft 6 is formed on the cam gear 7 which is the final stage of the reduction gear 5, and the position of the ice tray is recognized by detecting the rotational position of the cam gear 7 with the switch 8.
[0006]
  The switch 8 is held by the lower case 3 while being fixed to the printed circuit board 9 by soldering.
[0007]
[Problems to be solved by the invention]
  However, in recent years, from the viewpoint of protecting the global environment, efforts to make environmental load substances such as lead contained in solder as zero as possible have become active, and solder for printed circuit boards that fix switches is also a target. Need to be established.
[0008]
  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and provides a driving device for an automatic ice making machine and a method for manufacturing the same that can securely fix a switch without depending on soldering to a printed circuit board.
[0009]
[Means for Solving the Problems]
  The invention according to claim 1 of the present invention is an automatic ice maker driving device that twists an ice making tray that has generated ice to release ice.A cord is coupled to an electrode lead of a switch for detecting the position of the ice tray, the cord is assembled on the holding member after the switch is restrained by a snap fit on a cantilever protruding from the holding member, and the driving device The switch is fixed to a predetermined position by the case by fitting a fitting hole provided in advance in the holding member to a shaft provided in advance in a case that accommodates each of the components.Is,Since the switch can be held at a predetermined position simply by fitting the holding member in which the switch and the cord are integrated with the shaft, workability is improved.
[0010]
  Next, the invention described in claim 2In the invention of claim 1,The switch is restrained by snap fit on the outer periphery of the switch.CantileverProtruding except in one direction, do not project the cantilever on the outer periphery of the switchIn one direction,Pierce the electrode lead of the switchNotchJust insert the switch in the plane direction from one direction where the cantilever beam does not protrudeThe switch isSince it is attached to the holding member, it is easy to incorporate the switch. Moreover, it is not necessary to solder the printed circuit board, and the use of lead, which is an environmentally hazardous substance, can be suppressed.
[0011]
  Next, the invention according to claim 3 is the invention according to claim 1.Or 2In the invention described above, the cantilever is protruded in the plate thickness direction of the holding member and is opposite to the surface direction of the holding member from which the cantilever protrudes.In the reverse direction,Deriving the two electrode leads of the switch;A partition that separates the two electrode leads of the switch led to the back surface of the holding member protrudes from the holding member, and the electrode leads of the switch held by the holding member are electrically insulated from each other by the partition. However, even if water suitability is adhered, water droplets do not cross between the electrode leads, and a short circuit due to condensed water is prevented, so that reliability is improved.
[0012]
  Next, the invention described in claim 4Any one of claims 1 to 3In the described invention,The partition wall is positioned in the plate thickness direction when the holding member is housed in the case, and the switch position is stabilized by preventing bending in the plate thickness direction, and is surrounded by the partition wall and the case. Since the electrode leads are accommodated in the space, the electrode leads can be prevented from moving and coming into contact with each other, and the reliability is improved.
[0013]
  Next, the invention according to claim 5 is:Any one of claims 1 to 4In the invention described inThe switch has a configuration in which a button protrudes from one wall surface and the electrode lead protrudes from a wall surface opposite to the button, and the button side wall surface of the switch is provided on the cantilever of the holding member. A pressing claw is provided so that the switch does not come off to the button side, and the switch is securely restrained by the hooking claw and prevents displacement in the button direction, so that a reliable operation can be realized.
[0014]
  Next, the invention described in claim 6Any one of claims 1 to 5In the invention described inThe holding member is provided with a detachable gate to which the switch can be detached from the restraint of the cantilever, and the detachable gate is blocked by a wall of the case when the holding member is stored in the case. Providing a detachable gate facilitates the mounting of the switch on the holding member and improves workability. After the holding member is stored in the case, the switch restricts the movement of the switch in the direction of the detachable gate by the wall of the case. So the switch position is stable.
[0015]
  Next, the invention according to claim 7 is:In an automatic ice maker driving device that twists an ice tray that has generated ice to release the ice, a cord is coupled to an electrode lead of a switch that detects the position of the ice tray, and the switch is connected to the holding member in a planar direction. Inserted into the cantilever projecting except in one direction from the one direction, and then gathering the cords on the holding member, the shaft provided in advance in the case for storing each component of the drive device, By fitting a holding hole provided in advance in the holding member, one direction without the cantilever is closed by the case, the positional deviation of the switch is restricted and fixed at a predetermined position, Since the switch can be mounted on the holding member simply by inserting the switch in the plane direction from one direction where the beam does not protrude, it is easy to incorporate the switch, and the holding member in which the switch and cord are integrated is fitted to the shaft. In the switch it is restricted to a predetermined position, since it is fixed, the assembling workability is improved.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
  (Embodiment 1)
  FIG. 1 is a front view showing the periphery of a first embodiment of a driving apparatus for an automatic ice making machine according to the present invention, FIG. 2 is a perspective view showing the inside of the embodiment, and FIG. 3 shows the internal parts of the embodiment. 4 is a perspective view showing parts on the holding member according to the embodiment, FIG. 5 is a perspective view showing a case storing the parts on the holding member according to the embodiment, and FIG. It is a perspective view which shows the holding member before switch assembly of the form.
[0017]
  In FIG. 1, reference numeral 10 denotes an automatic ice maker, which is located below the ice tray 11, an ice tray 11 that is supplied with water to generate ice, a driving device 12 that rotates and rotates the ice tray 11 to release ice. An ice storage box 13 that stores the deiced ice and an ice detecting lever 14 that is driven by the driving device 12 and detects the amount of ice in the ice storage box 13 are configured.
[0018]
  In FIG. 2, reference numeral 15 denotes a main body that forms an outline of the driving device 12, and includes a case 16 and a cover 17. (In FIG. 2, the cover 17 shows only the outer shape by a two-dot chain line and is depicted as seen through the inside.) The case 16 and the cover 17 are provided with a beam 17a provided on the cover 17 on the case 16. They are united by hanging on the claw 16a, and further tightened with a tapping screw along the screw hole 18.
[0019]
  Reference numeral 19 denotes a motor having a shaft 19a, and a rectangular connecting plate 20 is press-fitted and fixed to the shaft 19a. (See Figure 4)
  Reference numeral 21 denotes a worm gear to which the rotation of the motor 19 is transmitted by the connecting plate 20, and one end of the rotating shaft is supported by a bearing provided in the case 16. (See Figure 3)
  Reference numeral 22 denotes a worm wheel gear whose rotation is transmitted from the worm gear 21, and the rotation axis thereof is perpendicular to the rotation axis of the worm gear 21. (See Figure 3)
  Reference numeral 23 denotes a first pinion gear that is coaxially and integrally formed with the worm wheel gear 22 and rotates at the same speed as the worm wheel gear 22. (See Figure 3)
  Reference numeral 24 denotes a first gear to which the rotation of the first pinion gear 23 is transmitted. Reference numeral 25 denotes a second pinion gear that is coaxially and integrally formed with the first gear 24 and rotates at the same speed as the first gear 24. To do.
[0020]
  Reference numeral 26 denotes an output gear to which the rotation of the second pinion gear 25 is transmitted, and the output shaft 27 projects from the inside of the main body 15 to the outside of the cover 17 along the rotation axis.
[0021]
  The output gear 26 is rotatably supported by a shaft 16b (see FIG. 5) protruding in the vertical direction from the inner bottom surface of the case 16 and a bearing hole 17b provided in the cover 17 through which the output shaft 27 passes.
[0022]
  The end face of the output gear 26 isIce detection shaft operation cam, switch operation camProvided,BothNot shown.
[0023]
  30 is ice detection axis operationcam, And one end of the ice detection shaft 30 is operated by the ice detection shaft.camThe other end forms a joint 30b that goes out of the main body 15 and to which the ice detecting lever 14 is connected.
[0024]
  31 is switch operationcamSwitch lever (see Fig. 3) that is displaced according to thecamAre supported by the case 16, a cam projection 31 b for operating a switch, which will be described later, a blocking projection 31 c that the cam follower 30 a of the ice detecting shaft 30 abuts when the ice amount is insufficient, and prevents the operation. It consists of a shaft 31d.
[0025]
  Reference numeral 32 denotes a switch operated by the switch lever 31. The switch 32 includes a switch body 32a, a button 32b that opens and closes a contact by abutment with an operation protrusion 31b of the switch lever 31, and two electrode leads 32c. (See Figure 6)
  The button 32b protrudes vertically from one surface of the switch body 32a, and the two electrode leads protrude from the surface opposite to the button 32b.
[0026]
  Reference numeral 33 denotes a holding member for positioning the switch 32. The holding member 33 formed in a plate shape has a cantilever 34 that protrudes in the thickness direction and restrains the switch 32, and the tip of the cantilever 34 has a vertical direction. A hooking claw 34a is provided.
[0027]
  The three cantilevers 34 are opposed to three of the four sides of the switch body 32a so as to extend to the surface on the button 32b side. The hooking claw 34a is applied to restrain the switch to the holding member 33. Yes.
[0028]
  The side not facing the cantilever 34 forms a detachable gate 35 that allows the switch 32 to be attached to and detached from the restraint of the cantilever 34. (See Figs. 4 and 6)
  A notch 36 (see FIG. 6) that allows the two electrode leads 32c to pass therethrough is provided in the flat portion of the holding member 33 that supports the switch body 32a, and the notch 36 is open at one end toward the detachable gate 35.
[0029]
  In addition to the cantilever beam 34, the holding member 33 is provided with a clamp 37 that collects and binds the cords coupled to the electrode leads 32 c and is positioned near the cord outlet of the case 16. Thus, the switch 32 and the cord can be integrated on the holding member.
[0030]
  4 and 6, the holding member 33 has a motor holding portion 38 for holding the motor 19. The motor holding portion 38 has a frame 38a in which the main body of the motor 19 is accommodated, and a claw 38b for holding the end surface of the main body of the motor 19 with a snap fit. Consists of.
[0031]
  Further, the holding member 33 is provided with a fitting hole 39 that fits into the shaft 16 b provided in the case 16, and the holding member 33 is held by being inserted along the shaft 16 b of the case 16. The member 33 is positioned and stored in the case 16.
[0032]
  Further, the holding member 33 has a partition wall 40 protruding vertically on the surface opposite to the cantilever 34, and the partition wall 40 functions as electrical insulation of the electrode lead 32 c of the switch 32, and the holding member 33. When it is housed in the case 16, it also functions as a positioning with respect to the bottom surface.
[0033]
  Further, the partition wall 40 also functions as a reinforcing rib of the holding member 33, prevents bending in the thickness direction and stabilizes the switch position.
[0034]
  41 is a cord coupled to the electrode lead 32c, and the coupling is completed mechanically and electrically by enclosing the electrode lead 32c and the core wire 41a of the cord 41 with a connecting member 42 made of brass. To do.
[0035]
  In the present embodiment, when the switch body 32a of the switch 32 is inserted from the detachable gate 35 of the cantilever 34 of the holding member 33 with the cord 41 previously coupled to the electrode lead 32c of the switch 32, the electrode lead 32c is It is possible to enter from the open end of the notch 36 and does not prevent the switch 32 from being attached to the cantilever 34.
[0036]
  If the electrode lead 32 c is folded so as to be sandwiched in the partition wall 40 of the holding member 33 with the switch 32 being restrained by the cantilever 34, the cord 41 is guided to the clamp 37 side of the holding member 33.
[0037]
  Since the motor cord 43 is also connected to the motor 19, the second clamp 44 for the motor cord 43 is provided on the holding member 33 in the present embodiment, and the motor cord 43 is bound at one end by the second clamp 44. After that, it is bundled together with the cord 41 by the clamp 37 and guided to the cord outlet of the case 16.
[0038]
  The operation of the first embodiment configured as described above will be described.
[0039]
  When the water supplied to the ice tray 11 is frozen and ice is generated, the motor 19 receives electric power from a control unit (not shown) and rotates forward (clockwise as viewed from the motor shaft 19a side). The rotation of the motor 19 is transmitted to the output shaft 27 via the worm gear 21, worm wheel gear 22, first pinion gear 23, first gear 24, second pinion gear 25, and output gear 26.
[0040]
  The rotation of the output shaft 27 is transmitted to the ice tray 11, and the ice tray 11 starts to rotate from the horizontal position (origin position), and a contact piece (not shown) hits the corner of the ice tray 11 when it rotates 130 °. The output shaft 27 rotates up to 160 °, but the corner of the ice tray 11 is prevented from rotating, so that the ice tray 11 is twisted 30 ° to discharge ice. (This is called icing)
  The output shaft 27 rotates from 0 ° to 160 °, but the switch operation provided on the end face of the output gear 26camThen, the cam projection 31a of the switch lever 31 is driven, the operation projection 31b rotates about the shaft 31d, and the button 32a of the switch 32 is operated, so that a signal is generated at a predetermined position.
[0041]
  In this embodiment, when the ice amount in the ice storage box 13 is insufficient, the output shaft is 0 ° to 80 °.Hi signalIs output, and then the Lo signal is output, and the Hi signal is output again at 160 °.
[0042]
  Further, when there is a sufficient amount of ice in the ice storage box 13, the Hi signal is output until the output shaft is 0 ° to 45 °, the Lo signal is output thereafter, and the Hi signal is output again at 160.
[0043]
  The switch 32 outputs a Lo signal when the button 32a is pushed by the operation protrusion 31b of the switch lever 31, and outputs a Hi signal when the operation protrusion 31b is released from the button 32a.
[0044]
  When ice is insufficient in the ice storage box 13, the ice detection lever 14 enters deep into the ice storage box 13, so that the rotation angle of the ice detection shaft 30 is increased and a part of the cam follower 30a is switched. By pressing the blocking protrusion 31c of the lever 31 so that the operation protrusion 31b does not press the button 32b, the output range of the Hi signal is made longer than when the ice amount is sufficient.
[0045]
  The operation protrusion 31b of the switch lever 31 repeatedly contacts and disconnects the button 32b of the switch 32, but the switch body 32 is displaced because the switch 32 is restrained by the holding member 33 by the cantilever 34. In addition, the holding member 33 is provided with a partition wall 40 that insulates the two electrode leads 32b on the opposite side of the cantilever 34, which functions to position the bottom surface of the case 16, and the holding member 33 No misalignment.
[0046]
  Further, since the fitting hole 39 of the holding member 33 is fitted to the shaft 16b of the case 16, the holding member 33 is not displaced in the plane direction, and the position of the switch 32 is always stable.
[0047]
  As described above, the drive device for the automatic ice making machine in the present embodiment has the switch 32 for detecting the position of the ice tray 11 having the two electrode leads 32c for feeding, and the holding member 33 for positioning the switch 32. And a case 16 for housing these components, and a cover 17, and a notch 36 through which the electrode lead 32 c of the switch 32 passes through the holding member 33, and a cantilever 34 for restraining the switch 32 with a snap fit. ProvidedIt is supposed to be configuredAttaching the switch 32 while bending the cantilever 34By doing so, the switch 32Snap fit to holding member 33Fixed. Therefore,Since the switch can be fixed without relying on soldering to the printed circuit board, solder can be eliminated and the use of lead, which is an environmentally hazardous substance, can be avoided.
[0048]
  In addition, since no printed circuit board or solder is used, problems such as solder peeling due to the difference in thermal expansion coefficient between metal and resin, and pattern breakage on the printed circuit board are completely eliminated. improves.
[0049]
  Further, the cantilever 34 protrudes in the thickness direction of the holding member 33, and the two electrode leads 32c of the switch 32 are led out in the reverse direction opposite to the surface direction of the holding member 33 from which the cantilever 34 protrudes. The switch 32 is not pulled by using the notch 36 by passing the electrode lead 32c through the notch 36 so as to guide the cord 41 connected to the electrode lead 32c in the direction opposite to the direction of taking out the electrode lead 32c. The cord 41 can be arranged compactly in the direction.
[0050]
  Then, the cantilever 34 protrudes in the plate thickness direction of the holding member 33, and the partition wall 40 that separates the two electrode leads 32c of the switch 32 protrudes in a direction opposite to the direction in which the cantilever 34 protrudes. Therefore, the electrode leads 32c of the switch 32 constrained by the holding member 33 are electrically insulated from each other by the partition wall 40, and even if water suitability is adhered, the electrode leads 32c are not bridged, and there is a possibility of a short circuit due to condensed water. Low electrical insulation and anti-condensation reliability.
[0051]
  The partition wall 40 is positioned in the thickness direction when the holding member 33 is stored in the case 16, and the electrode lead 32 c is stored in the space surrounded by the partition wall 40 and the case 16. The electrode leads 32c can be prevented from moving and coming into contact with each other, and the reliability is further improved.
[0052]
  Further, since the partition wall 40 functions as a reinforcing rib of the holding member 33 and prevents bending in the plate thickness direction, the switch position is stabilized.
[0053]
  The case 16 is provided with a shaft 16b protruding in the vertical direction with respect to the bottom surface, the holding member 33 is provided with a fitting hole for fitting with the outer periphery of the shaft 16b, and the fitting hole 39 is fitted into the shaft 16b. Since the holding member 33 is positioned, the movement of the holding member 33 in the direction perpendicular to the shaft 16b can be restricted, and the switch 32 is prevented from being displaced and the switch position is stabilized.
[0054]
  The holding member 33 has a clamp 37 that collects and holds the cords 41 connected to the electrode leads 32c. Since the switch 32 and the cord 41 can be integrated on the holding member 33, the holding member 33 can be reduced in size.
[0055]
  The switch 32 has a configuration in which the button 32a protrudes in the vertical direction from one wall surface and the electrode lead 32c protrudes from the wall surface opposite to the button 32a.The cantilever 34 includesSince a hook claw 34a for pressing the wall surface of the switch 32 on the button 32a side is provided so that the switch 32 does not come off to the button 32a side, the switch 32IsTo the hanging claw 34aThereforeIt is surely restrained, prevents a positional shift in the direction of the button 32a, and realizes a reliable operation.
[0056]
  The holding member 33 is provided with a detachable gate 35 to which the switch 32 can be detached from the cantilever 34. IeCantilever 34The switch 32 is connected to the holding member 33 if it is inserted in the plane direction from the opened one direction by opening it in the plane direction without providing it in one direction with respect to the outer periphery of the switch 32. WearingEasier,Workability is improved. Also,Holding member 33,Since the detachable gate 35 is closed by the wall of the case 16 when stored in the case 16, the movement of the switch 32 in the direction of the detachable gate 35 is restricted, and the switch position is stabilized.
[0057]
  Then, the cord 40 is coupled to the electrode lead 32 c of the switch 32, and the switch 32 is attached to the holding member 33.LeaveRestrained to cantilever 34 by snap fitlater,The switch 41 can be fixed at a predetermined position by assembling the cord 41 on the holding member 33 and fitting the fitting hole 39 provided in advance in the holding member 33 to the shaft 16b provided in the case 16 in advance.it can. Therefore,Integrated switch 32 and cord 41Holding member 33,With a simple assembly that only fits the shaft 16b, the switch 32 fits in a predetermined position, thereby improving workability.
[0058]
【The invention's effect】
  As described above, the invention according to claim 1 of the present invention is a drive device for an automatic ice making machine that twists an ice making tray that has generated ice to release ice.A cord is coupled to an electrode lead of a switch for detecting the position of the ice tray, the cord is assembled on the holding member after the switch is restrained by a snap fit on a cantilever protruding from the holding member, and the driving device The switch is fixed to a predetermined position by the case by fitting a fitting hole provided in advance in the holding member to a shaft provided in advance in a case that accommodates each of the components.Is. by this,Since the switch can be held at a predetermined position simply by fitting the holding member in which the switch and the cord are integrated with the shaft, the assembling workability can be improved.
[0059]
  The invention according to claim 2In the invention according to claim 1, the holding member includes:The switch is restrained by snap fit on the outer periphery of the switch.CantileverProtruding except in one direction, do not project the cantilever on the outer periphery of the switchIn one direction,Pierce the electrode lead of the switchNotchIt is provided. Accordingly, since the switch is mounted on the holding member simply by inserting the switch in a planar direction from one direction where the cantilever does not protrude, it is easy to incorporate the switch and to improve the assembly workability. Moreover, it is not necessary to solder the printed circuit board, and the use of lead, which is an environmentally hazardous substance, can be suppressed.
[0060]
  The invention according to claim 3 is the invention according to claim 1.Or 2In the invention described above, the cantilever is protruded in the plate thickness direction of the holding member and is opposite to the surface direction of the holding member from which the cantilever protrudes.In the reverse direction,Deriving the two electrode leads of the switch;A partition that separates the two electrode leads of the switch led to the back surface of the holding member protrudes from the holding member, and the electrode leads of the switch held by the holding member are electrically insulated from each other by the partition. However, even if water suitability is adhered, water droplets do not cross between the electrode leads and prevent a short circuit due to condensed water, thereby improving electrical insulation and resistance to condensation.
[0061]
  The invention according to claim 4Any one of claims 1 to 3In the described invention,The partition wall is positioned in the plate thickness direction when the holding member is housed in the case, and the switch position is stabilized by preventing bending in the plate thickness direction, and is surrounded by the partition wall and the case. Since the electrode leads are accommodated in the space, the electrode leads can be prevented from moving and coming into contact with each other, and the reliability is improved. Furthermore, since the holding member is reinforced by the partition wall and the bending in the thickness direction is suppressed, the position of the switch is stabilized.
[0062]
  The invention according to claim 5Any one of claims 1 to 4In the invention described inThe switch has a configuration in which a button protrudes from one wall surface and the electrode lead protrudes from a wall surface opposite to the button, and the button side wall surface of the switch is provided on the cantilever of the holding member. A pressing claw is provided so that the switch does not come off to the button side, and the switch is securely restrained by the hooking claw and prevents displacement in the button direction, so that a reliable operation can be realized.
[0063]
  Next, the invention described in claim 6Any one of claims 1 to 5In the invention described inThe holding member is provided with a detachable gate to which the switch can be detached from the restraint of the cantilever, and the detachable gate is blocked by a wall of the case when the holding member is stored in the case. By providing a detachable gate, the switch can be easily attached to the holding member, improving workability, and after the holding member is housed in the case, the switch moves in the direction of the detachable gate by the wall of the case. Because it regulates, the switch can be fixed stably.
[0064]
  Next, the invention according to claim 7 is:In an automatic ice maker driving device that twists an ice tray that has generated ice to release the ice, a cord is coupled to an electrode lead of a switch that detects the position of the ice tray, and the switch is connected to the holding member in a planar direction. Inserted into the cantilever projecting except in one direction from the one direction, and then gathering the cords on the holding member, the shaft provided in advance in the case for storing each component of the drive device, By fitting a holding hole provided in advance in the holding member, one direction without the cantilever is closed by the case, the positional deviation of the switch is restricted and fixed at a predetermined position, Since the switch can be mounted on the holding member simply by inserting the switch in a plane direction from one direction where the beam does not protrude, it is easy to incorporate the switch, and the holding member with integrated switch and cord is fitted on the shaft. Only the switch is restricted to a predetermined position in that, because it is fixed, to improve the assembly workability, it is possible to improve the assembly quality.
[Brief description of the drawings]
FIG. 1 is a front view showing the periphery of a first embodiment of a drive device for an automatic ice maker according to the present invention.
FIG. 2 is a perspective view showing the inside of the embodiment
FIG. 3 is a perspective view of main parts showing internal components of the embodiment.
FIG. 4 is a perspective view showing components on the holding member according to the embodiment.
FIG. 5 is a perspective view showing a case storing components on the holding member according to the embodiment;
FIG. 6 is a perspective view showing a holding member before the switch is assembled according to the embodiment;
FIG. 7 is a cross-sectional view showing a conventional automatic ice maker driving device.
[Explanation of symbols]
  10 Automatic ice maker
  11 Ice tray
  12 Drive unit
  16 cases
  16b shaft
  32 switches
  32b button
  32c electrode lead
  33 Holding member
  34 Cantilever
  34a Hanging nail
  35 Detachable gate
  36 Notch
  37 Clamp
  39 Fitting hole
  40 Bulkhead
  41 code

Claims (7)

In an automatic ice maker driving device that twists an ice tray that has generated ice to release ice , a cord is coupled to an electrode lead of a switch that detects the position of the ice tray, and the switch protrudes from a holding member. After constraining the beam by snap fitting, the cords are gathered on the holding member, and a fitting hole provided in advance in the holding member is fitted to a shaft provided in advance in a case for housing each component of the driving device. Thus , the automatic ice maker driving device is characterized in that the switch is fixed at a predetermined position by the case . The holding member has a cantilever beam that restrains the switch in a snap fit on the outer periphery of the switch, except for one direction, and the switch has a one-way direction that does not project the cantilever beam on the outer periphery of the switch. The drive device for an automatic ice making machine according to claim 1, wherein a notch for penetrating the electrode lead is provided. Together to protrude the cantilever in the thickness direction of the holding member and the surface direction of the holding member in which the cantilever beam is projected in the opposite rear surface direction, to derive the two electrode leads of the switch, the The drive device for an automatic ice maker according to claim 1 or 2 , wherein a partition that separates the two electrode leads of the switch guided in the rear surface direction of the holding member protrudes from the holding member . The drive device for an automatic ice maker according to any one of claims 1 to 3, wherein the partition wall is positioned in a plate thickness direction when the holding member is housed in the case . The switch has a configuration in which a button protrudes from one wall surface and the electrode lead protrudes from a wall surface opposite to the button, and the button side wall surface of the switch is provided on the cantilever of the holding member. The automatic ice maker drive device according to any one of claims 1 to 4, wherein a hooking claw is provided to prevent the switch from coming off to the button side . The holding member is provided with a detachable gate to which the switch can be detached from the restraint of the cantilever, and the detachable gate is blocked by a wall of the case when the holding member is stored in the case. The drive device for an automatic ice making machine according to any one of claims 1 to 5 . In an automatic ice maker driving device that twists an ice tray that has generated ice to release the ice, a cord is coupled to an electrode lead of a switch that detects the position of the ice tray, and the switch is connected to the holding member in a planar direction. Inserted into the cantilever projecting except in one direction from the one direction, and then gathering the cords on the holding member, the shaft provided in advance in the case for storing each component of the drive device, By automatically fitting a holding hole provided in the holding member, one direction without the cantilever is closed by the case, and the position shift of the switch is regulated and fixed at a predetermined position. A method of manufacturing a drive device for an ice making machine.

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