JP5052194B2 - Filter structure mounting structure - Google Patents

Description

  The present invention relates to a structure for mounting a filter structure, and more particularly to a structure for mounting a filter structure inside an ice making water tank for storing ice making water.

  2. Description of the Related Art A spray type automatic ice making machine that continuously manufactures ice blocks by spraying ice making water from below into a large number of ice making chambers that open downward is suitably used in facilities such as coffee shops and restaurants. As disclosed in Patent Document 1, the basic structure of the jet type automatic ice maker is that an evaporation pipe communicating with a refrigeration system meanders closely on the upper surface of an ice making chamber that defines a large number of ice making chambers that open downward. The ice making chamber is forcibly cooled by circulating a refrigerant through the evaporation pipe during ice making operation. Immediately below the ice making chamber, a water pan with an ice making water tank that stores ice making water is pivotally supported in a cantilevered manner by a tilting shaft, and the ice making chamber (ice making chamber) is closed from below. It is configured to tilt between a closed position that is formed and an open position that tilts downward from the ice making chamber to open the ice making chamber (ice making chamber).

  The ice tray and the ice making water tank are held in a horizontal closed position during ice making operation, and the ice making chamber is closed from the lower side. It is held in an open position for opening. The water tray also has a number of injection holes and return holes corresponding to each of the ice making chambers. During ice making operation, a pump motor provided in the ice making water tank is operated, so that the ice making water is supplied to the water tray. It is pumped and sprayed from each injection hole to the corresponding ice making chamber, and the ice making water (unfreezing water) is collected in the ice making water tank through the return hole and circulated so as to be injected again into the ice making chamber by the pump motor. I am letting.

In the ice making water tank, a tank portion for storing ice making water is defined at a required depth inside, and a wall portion located near the deepest portion of the tank portion communicates with a suction pipe of the pump motor. A pump inlet is established. That is, during the ice making operation, the ice making water in the ice making water tank is sent to the pump motor via the pump suction port and is supplied to the ice making chamber by injection.
JP 2005-241055 A

  By the way, since the ice making water during the ice making operation is used for circulation supply, the temperature gradually decreases. If the ice-making water is cooled too much and falls below the freezing point, part of the ice-making water may freeze in the ice-making water tank to generate cotton ice (slush ice). As a result, the pump motor sucks ice-making water containing such cotton ice, which may cause problems with the pump motor. In addition, the spray holes of the water tray may be clogged with cotton ice, which may hinder the stable supply of ice making water. In addition, when impurities are mixed into the ice making water tank for some reason, there is no means for collecting the impurities, which may cause sanitary problems with the manufactured ice.

  Therefore, if a filter that covers the pump suction port is provided inside the ice-making water tank, it is possible to avoid the above-described problems caused by the generation of cotton ice or the contamination of impurities. However, normally, the opening area of the pump suction port of the ice making water tank is set to be small in accordance with the suction pipe of the pump motor, and a filter having only a collection area that covers the pump suction port is likely to be clogged. is there. Therefore, it is necessary to frequently clean and replace the filter, which may increase maintenance costs. In addition, since the filter is easily clogged, the suction resistance of the ice making water is increased, the load on the pump motor is increased, and the pump motor is broken. For these reasons, the conventional ice making water tank is not provided with a filter for filtering the ice making water, and the suction of cotton ice and impurities in the ice making water cannot be prevented.

  In view of the above problems, the present invention has been proposed to solve this problem, and a filter structure that is less likely to be clogged is attached to an ice-making water tank. The purpose is to provide a structure.

In order to overcome the above-mentioned problems and achieve the intended object, the filter structure mounting structure of the invention according to claim 1 comprises:
A mounting structure for attaching a filter structure to a pump suction port established inside an ice making water tank,
The filter structure is
A frame body in which a predetermined volume of space is internally defined and an inflow portion for allowing ice-making water to flow into the space is opened,
A connecting portion that is provided on the frame body, is detachably attached to the pump suction port, and connects the space between the suction pipe of the pump motor connected to the pump suction port and the space;
A mesh member covering the inflow portion ;
A contact portion provided at a portion of the frame body opposite to the connection portion ;
The frame body is formed in a shape that can be fitted into a housing portion that is internally defined in a portion where the pump suction port faces in the ice making water tank ,
By rotating the frame body with the connection part connected to the pump suction port, the abutted part is abutted and supported by a fixed part provided in the accommodation part, and the frame body becomes the accommodation part. It is fitted, and the movement to the rotation axis direction is regulated .
According to the first aspect of the present invention, the surface area of the frame main body can be increased by adopting a three-dimensional frame main body having a required space inside. Accordingly, the opening area of the inflow portion that can be opened in the frame body can be increased, and a mesh member having a large collection area can be provided in the inflow portion. As a result, clogging of the mesh member is less likely to occur, the frequency of filter replacement, cleaning, etc. is reduced, and maintenance costs can be reduced. The frame body is simply fitted into the accommodating portion by connecting the connecting portion to the pump suction port of the ice making water tank, as possible out easily attached to the ice-making water tank. Furthermore, since the side of the frame main body is supported by the fixing part of the ice making water tank, the movement of the frame main body in the direction of the rotation axis is restricted, and the frame main body can be stably held.

Order to overcome the above problems, to achieve the intended purpose, the mounting structure of the filter structure according to claim 2,
A mounting structure for attaching a filter structure to a pump suction port established inside an ice making water tank,
The filter structure is
A frame body in which a predetermined volume of space is internally defined and an inflow portion for allowing ice-making water to flow into the space is opened,
A connecting portion that is provided on the frame body, is detachably attached to the pump suction port, and connects the space between the suction pipe of the pump motor connected to the pump suction port and the space;
A mesh member covering the inflow portion;
An engagement portion provided on the frame body,
The frame body is formed in a shape that can be fitted into a housing portion that is internally defined in a portion where the pump suction port faces in the ice making water tank,
When the frame main body is rotated in one direction with the connecting portion connected to the pump suction port and fitted into the accommodating portion, the engaging portion is engaged with a rotation restricting piece provided in the accommodating portion. In addition, the rotation of the frame body in the other direction is restricted.
According to the second aspect of the present invention, the surface area of the frame body can be increased by adopting the frame body having a three-dimensional structure having a required space inside. Accordingly, the opening area of the inflow portion that can be opened in the frame body can be increased, and a mesh member having a large collection area can be provided in the inflow portion. As a result, clogging of the mesh member is less likely to occur, the frequency of filter replacement, cleaning, etc. is reduced, and maintenance costs can be reduced. Further, the frame main body can be easily attached to the ice making water tank only by connecting the connecting portion to the pump suction port of the ice making water tank and fitting it into the accommodating portion. Furthermore, when the frame main body is fitted into the housing portion, the engaging portion engages with the rotation restricting piece and the rotation in the other direction is restricted, so the frame main body is securely fitted into the housing portion. It can hold | maintain and it can prevent that a filter main body rotates naturally to another direction by the vibration at the time of a driving | operation.

In the filter structure mounting structure according to claim 3, the frame main body is provided with an engaging portion, and the frame main body is rotated in one direction while the connection portion is connected to the pump suction port. When engaged, the engaging portion engages with a rotation restricting piece provided in the accommodating portion, so that the rotation of the frame body in the other direction is restricted.
According to the third aspect of the present invention, when the frame main body is fitted into the accommodating portion, the engaging portion engages with the rotation restricting piece and the rotation in the other direction is restricted. It can be securely fitted and held in the housing portion, and the filter body can be prevented from naturally rotating in the other direction due to vibration during operation.

  According to the filter structure mounting structure of the present invention, it is possible to easily attach and detach a filter structure that is less likely to be clogged to an ice making water tank.

  Next, a preferred embodiment of the filter structure mounting structure according to the present invention will be described below with reference to the accompanying drawings. In the following description, “front / rear / left / right” are designated when the automatic ice maker is viewed from the front as shown in FIG. Further, in this embodiment, a case where a jet type automatic ice maker is adopted as an automatic ice maker and a filter structure is attached to an ice making water tank of the jet type automatic ice maker will be exemplified. However, the filter structure mounting structure of the present invention is not limited to a jet type automatic ice maker, as long as it is an ice maker of a type that circulates and supplies ice making water in an ice making water tank. Is possible.

  First, the main structure of an injection type automatic ice maker provided with a filter structure mounting structure according to an embodiment will be briefly described below. The jet type automatic ice maker is basically the same configuration as the ice maker according to the conventional structure, and an ice storage chamber of a required shape is defined inside a substantially box-shaped housing, An ice making unit 16 including an ice making chamber 10, a water tray 12, an ice making water tank 14 and the like as shown in FIG. That is, an ice making chamber 10 that defines a large number of ice making chambers (not shown) that open downward is fixedly supported below the mounting frame 18 that is horizontally disposed on the top of the housing, and the upper surface of the ice making chamber 10 is An evaporating pipe 20 communicating with a refrigeration system (not shown) is closely arranged in a meandering manner, and the ice making chamber is forcibly cooled by circulating a refrigerant through the evaporating pipe 20 during ice making operation. Further, immediately below the ice making chamber 10, a water tray 12 integrally provided with an ice making water tank 14 for storing ice making water is pivotally supported by a tilting shaft 22 so as to be cantilevered. The water tray 12 is urged by a water tray opening / closing mechanism 24 including an actuator motor 34, a cam arm 30 and the like, and tilts with the tilting shaft 22 as a fulcrum to open and close the ice making chamber (ice making chamber 10). Is done.

  FIG. 2A is an overall perspective view showing the filter structure 26 according to the embodiment, and this filter structure 26 can be fitted in an installation space (accommodating portion) 70 of an ice making water tank 14 to be described later. A space S through which ice-making water can circulate is defined inside a frame main body 28 that is formed in a shape and forms an outline thereof. As shown in FIG. 2 (b), the frame body 28 has a first half body 32 and a second half body 36 formed in a substantially symmetrical shape as a basic configuration, and both the first and second half bodies 32, One end edge portion in the longitudinal direction of 36 is rotatably connected via a hinge portion 38. In FIG. 2B, the first half 32 indicates the left half, and the second half 36 indicates the right half. Since the first and second halves 32 and 36 are substantially symmetrical, in the following description, the first half 32 will be mainly described, and the same parts and the like will be denoted by the same reference numerals. And

  The first half body 32 is configured by opposingly arranging side portions 40 and 40 having a shape obtained by dividing an ellipse into halves along the longitudinal direction, and as illustrated, a rectangular box-shaped three-dimensional structure that is long in one direction. I am doing. Further, the upper and lower surfaces of the first half 32 are open, and the lower surface shown in the state of FIG. 2B constitutes an inflow opening surface 42 (inflow portion) that allows inflow of ice making water. The upper surface constitutes a joint opening surface 44 that joins the second half 36. The first half body 32 is provided with a fitting frame portion 46 along the inner peripheral surface of the edge that defines the joint opening surface 44, and the fitting frame portion 46 is located on the upper side in FIG. It projects toward the opening direction. This fitting frame portion 46 is provided only in the first half 32, and when the first and second halves 32, 36 are closed so that the joint opening surfaces 44, 44 face each other. The fitting frame portion 46 is fitted so as to face the inner peripheral surface of the joint opening surface 44 of the second half 36.

An extension part 48 extending outward is formed at one end of the joint opening surface 44 in the longitudinal direction opposite to the hinge part 38, and a pair of through holes 48 a and 48 a are opened in the extension part 48. Has been. On the other hand, the extended portion 48 of the second half 36 is provided with a pair of projecting pieces 48b, 48b projecting in the opening direction of the joint opening surface 44. When the first and second halves 32 and 36 are closed, the extending portions 48 and 48 are aligned, and the projecting pieces 48b and 48b are inserted into the through holes 48a and 48a of the first half 32. Thus, both halves 32 and 36 are fixed. In the molding, the first and second halves 32 and 36 are welded over the entire circumference of the joint opening surfaces 44 and 44 that are opposed to each other.

  A mesh member 50 having a predetermined roughness is provided on the inflow opening surface 42 so as to cover the entire opening surface 42. That is, as for the 1st half body 32 (2nd half body 36), one whole surface (inflow opening surface 42) extended in a longitudinal direction functions as a collection surface. The mesh member 50 is made of a long mesh material extending in one direction, and a single mesh member 50 is used in common for the first half body 32 and the second half body 36.

  A semicircular semicircular opening 52 is formed in one side surface 40 of the first half 32. The semicircular opening 52 slightly protrudes outward from the side surface 40, and when the first and second halves 32 and 36 are closed, the semicircular openings 52 and 52 are aligned. Thus, a circular opening is formed. And this opening part functions as the connection part 56 fitted in the pump suction inlet (after-mentioned) 54 of the ice making water tank 14 so that rotation is possible. The outer diameter dimension of the connection portion 56 is set so as to substantially match the inner diameter dimension of the pump suction port 54, and the connection portion 56 is rotatably inserted into the pump suction port 54. Therefore, the filter structure 26 can be rotated even after being connected to the ice making water tank 14. Further, the semicircular opening 52 of the second half 36 is provided with a pair of guide ribs 52a and 52a protruding in the opening direction of the joint opening surface 44, and when the first and second halves 32 and 36 are closed. The guide ribs 52a and 52a are in contact with the other semicircular opening 52 so that the circular shape of the connecting portion 56 is maintained.

  The other side surface portion 40 in which the semicircular opening 52 is not formed in the first half body 32 is a fixing portion (described later) provided in the tank 14 in a state where the filter structure 26 is attached to the ice making water tank 14. 58 is configured to abut. That is, the other side portion of the filter structure 26 where the connection portion 56 is not provided functions as a contacted portion 60 with which the fixing portion 58 contacts (see FIG. 3). The hinge portion 38 is configured to be able to be bent from the central position in the short direction. When the first and second halves 32 and 36 are closed, the hinge portion 38 is folded in half and the length of the filter structure 26 is increased. It will be in the state of protruding outward. And the hinge part 38 in this state functions as the engaging part 64 engaged with the rotation restricting piece 62 of the ice making water tank 14 to be described later.

  FIG. 3 is a plan view showing the ice making water tank 14 according to the embodiment. The ice making water tank 14 is formed in a rectangular box shape formed in a substantially square shape in plan view, and is opened upward. The open surface to be closed is closed by the water tray 12. Inside the ice making water tank 14, a tank portion 66 is defined that can store a predetermined amount of ice making water. The bottom portion of the tank portion 66 is constituted by a plurality of inclined surfaces 80 and 80 that are inclined in a predetermined direction, and the deepest portion (the deepest portion 68) is formed at a portion on the front left side of the tank portion 66. A narrow rectangular area that is long in the left-right direction with the deepest portion 68 at the bottom is set as an installation space 70 in which the filter structure 26 is installed. A pump suction port 54 communicating with a suction pipe 74a of a pump motor 74 provided outside the ice making water tank 14 is opened in a front wall portion (hereinafter referred to as a front wall portion 72) that defines the installation space 70. Has been.

  On the rear wall portion (hereinafter referred to as the rear wall portion 76) constituting the installation space 70, a thin plate-like fixing portion 58 extending in the vertical direction is provided to extend forward by a predetermined length. ing. The fixing portion 58 functions to support the filter structure 26 by contacting the contacted portion 60 when the filter structure 26 is accommodated in the installation space 70. As shown in FIG. 4A, the fixing portion 58 is disposed at a distance L between the fixing portion 58 and the left wall portion defining the installation space 70 (hereinafter referred to as the left wall portion 78). Is set to be longer than the thickness dimension l of the filter structure 26. Further, the separation distance between the front end surface of the fixing portion 58 and the front wall portion 72 is set slightly shorter than the width dimension m of the filter structure 26. That is, the installation position of the fixing portion 58 is set to a position that does not interfere when the filter structure 26 in a substantially vertical posture (hereinafter referred to as an insertion posture) is inserted into the installation space 70, and the pump suction port 54. When the filter structure 26 connected to is rotated and accommodated in the installation space 70, the filter structure 26 is set to a position where it abuts against the contacted portion 60, and the filter structure 26 is fitted into the installation space 70. It has become.

  In this way, the filter structure 26 is attached to the tank portion 66 in an inclined posture (hereinafter referred to as an attachment posture) until a part of the inflow opening surface 42 of the second half 36 contacts the bottom surface of the installation space 70. It is done. Even in this mounting posture, the contact between the fixed portion 58 and the contacted portion 60 is maintained. However, as shown in FIG. 4 (b), even when the filter structure 26 is in the mounting posture, the installation space 70 has a required area below the inflow opening surface 42 of the second half 36. A space is defined. That is, in the filter structure 26 in the mounting posture, the inflow opening surface 42 of the second half 36 is not blocked only by a part of the second half 36 abutting against the bottom of the ice making water tank 14. . The separation distance between the pump suction port 54 and the rear wall 76 is set to be larger than the width dimension m of the filter structure 26 so that the connection portion 56 can be attached to and detached from the pump suction port 54.

  The left wall portion 78 is provided with a rotation restricting piece 62 that slightly protrudes toward the installation space 70 side. The rotation restricting piece 62 is formed of an elastically deformable material such as resin, and engages with the hinge portion 38 as the engaging portion 64 when the filter structure 26 is in the mounting posture. That is, as shown in FIG. 4A, the rotation restricting piece 62 is at a position slightly deviated from the rotation trajectory of the outer peripheral portion excluding the engaging portion 64 of the frame main body 28 in the state connected to the pump suction port 54. 4B, when the filter structure 26 is in the mounting posture, the engaging portion 64 rides on the rotation restricting piece 62 and engages with the engaging portion 64. As shown in FIG. Provided in position. Note that the rotation restricting piece 62 is elastically deformed when the engaging portion 64 gets over or is disengaged and allows the engaging portion 64 to move.

(Operation of Example)
Next, the operation of the filter structure mounting structure according to the embodiment will be described.

  First, when the filter structure 26 is molded, the first half 32 and the second half are combined into one mold capable of molding the open frame body 28 shown in FIG. A single mesh member 50 is set across the mold parts for molding 36 and the frame body 28 is molded. Thereby, the mesh member 50 is attached over the whole frame main body 28, and exists also in the said hinge part 38 without a cut. In addition, since the slide mechanism is not required as the mold, the manufacturing cost can be reduced.

  Next, the first half body 32 and the second half body 36 are rotated around the hinge portion 38, and the joint opening surfaces 44, 44 of both the half bodies 32, 36 are closed so as to face each other. At this time, the fitting frame portion 46 provided in the first half body 32 faces the inner periphery of the joint opening surface 44 of the second half body 36, and the both half bodies 32 and 36 are aligned without generating a gap. Further, the projecting pieces 48b, 48b provided on the extending portion 48 of the second half 36 are inserted into the through holes 48a, 48a provided on the extending portion 48 of the first half 32, and both halves 32, 36 are inserted. Is maintained. And the joining opening surfaces 44 and 44 of both the 1st, 2nd half bodies 32 and 36 are welded, and the filter structure 26 is completed.

  Next, the case where the filter structure 26 is attached to the ice making water tank 14 will be described. First, as shown in FIG. 4A, the filter structure 26 is placed in the installation space 70 in the insertion posture. At this time, since the thickness dimension l of the filter structure 26 is smaller than the separation distance L between the fixing portion 58 and the left wall portion 78, the fixing portion 58 does not interfere with the filter structure 26. Therefore, the filter structure 26 can smoothly face the installation space 70. Next, the connecting portion 56 is inserted into a pump suction port 54 provided in the tank portion 66, and the filter structure 26 is connected to the ice making water tank 14.

  Next, the upper side (the extension part 48 side) of the filter structure 26 in the insertion posture is pushed down, and the filter structure 26 is rotated around the connection part 56 toward the fixing part 58 (one direction). At this time, since the rotation restricting piece 62 is in a position retracted from the turning locus of the frame main body 28, the turn restricting piece 62 does not interfere with the filter structure 26. When the filter structure 26 is rotated to a predetermined inclination posture, the fixed portion 58 contacts the contacted portion 60 of the frame body 28, and the filter structure 26 is rotated by the front wall portion 72 and the fixed portion 58. Movement in the axial direction (front-rear direction) is restricted. Further, when the filter structure 26 is rotated, the engaging portion 64 contacts the rotation restricting piece 62, and the rotation restricting piece 62 is elastically deformed. And when the engaging part 64 gets over the rotation control piece 62, this rotation control piece 62 will elastically return. Thereby, the engaging part 64 engages with the rotation restricting piece 62. In this state, the extended portion 48 side of the second half 36 of the filter structure 26 comes into contact with the bottom surface of the deepest portion 68, and the filter structure 26 is in the mounting posture (see FIG. 4B). Further, when the rotation restricting piece 62 is engaged with the engaging portion 64, the rotation of the filter structure 26 to the insertion posture side (the other direction) is restricted, and the vibration during the operation of the injection type automatic ice making machine is controlled. This prevents the filter structure 26 from rotating freely. At this time, the restriction of the filter structure 26 by the fixing portion 58 is also maintained.

  Next, the operation at the time of use of the filter structure 26 according to the embodiment will be described. When the ice making operation is started, the pump motor 74 operates while the water tray 12 and the ice making water tank 14 are in the closed posture, and the refrigerant is supplied to the evaporation pipe 20 from a refrigeration mechanism (not shown). Then, the ice making water in the ice making water tank 14 flows through the space S in the filter structure 26 and then is sent to the pump motor 74 through the pump suction port 54. That is, the ice making water flows into the space S of the filter structure 26 through the inflow opening surfaces 42 and 42 provided on the upper and lower surfaces of the filter structure 26. At this time, even if impurities are contained in the ice-making water, the impurities are collected by the mesh member 50, so that sanitary ice can be formed. In addition, since a space is secured between the second half 36 and the bottom surface of the tank portion 66, the ice making water can be smoothly taken in from the inflow opening surface 42 of the second half 36.

  The ice making water sucked up by the pump motor 74 is supplied from the spray hole of the water tray 12 to each ice making chamber of the ice making chamber 10. Further, unfrozen water that has been supplied to the ice making chamber 10 and has not been frozen is returned to the ice making water tank 14 through the return hole of the water tray 12 and is recirculated. Here, with the progress of the ice making operation, the ice making water is cooled, and cotton ice may be generated in the ice making water. However, since the cotton ice is collected by the mesh member 50 of the filter structure 26, the pump motor 74 does not malfunction, and the spray hole of the water tray 12 does not clog. Further, even if the mesh member 50 on the upper (first half body 32 side) inflow opening surface 42 is clogged due to impurities in cotton ice or ice making water, the lower mesh member 50 causes cotton ice or the like. Can be collected.

  When ice making operation proceeds and ice cubes are formed in each ice making chamber, temperature detection means (not shown) detects the end of the ice making operation and ends the ice making operation. Subsequently, the deicing operation is started, and the water tray opening / closing mechanism 24 tilts the water tray 12 and the ice making water tank 14 downward. At the same time, hot gas is supplied to the evaporation tube 20 to melt the ice cubes formed in each ice making chamber. When freezing between the ice cube and the ice making chamber is released, the ice cube falls from the ice making chamber 10 by its own weight and is stored in an ice storage (not shown) below.

  Next, a case where the filter structure 26 is removed from the ice making water tank 14 in maintenance such as filter replacement will be described. In this case, the above procedure is performed in the reverse order to that when the filter structure 26 is attached. That is, the upper side of the filter structure 26 is lifted and rotated in the other direction. Then, the rotation restricting piece 62 is pressed by the engaging portion 64 and elastically deformed, and the engaging portion 64 is separated from the rotation restricting piece 62. At this time, the fixed portion 58 abuts against the abutted portion 60 of the filter structure 26, and the movement of the filter structure 26 in the rotational axis direction is restricted. When the filter structure 26 is rotated to the insertion posture, the abutted portion 60 is detached from the fixing portion 58, and the filter structure 26 is supported only by the connection of the pump suction port 54 and the connection portion 56. It becomes a state. In this state, the connecting portion 56 can be removed from the pump suction port 54, and the filter structure 26 can be extracted from the installation space 70. Also in this case, the fixing portion 58 does not interfere with the filter structure 26, and the filter structure 26 can be easily extracted. Since the cotton ice and impurities collected by the mesh member 50 are attached to the outside of the mesh member 50, the cleaning operation can be easily performed.

  As described above, according to the filter structure 26 according to the embodiment, the surface area of the frame main body 28 can be increased by employing the three-dimensional frame main body 28 having the required space S therein. Therefore, the large inflow opening surface 42 can be provided in the frame main body 28, and the collection area of the mesh member 50 provided in the opening surface 42 can be set wide. As a result, clogging of the mesh member 50 is less likely to occur, the number of filter replacements and cleanings can be reduced, and maintenance costs can be suppressed. Further, since the frame main body 28 can be attached simply by fitting the connecting portion 56 into the pump suction port 54 of the ice making water tank 14, the attachment / detachment work of the filter structure 26 is facilitated. In addition, since the connection portion 56 is connected to the pump suction port 54 so as to be connected, a gap is hardly generated, and cotton ice and impurities can be reliably collected.

  Further, the frame main body 28 can be assembled simply by folding the first half 32 and the second half 36 together, and the assembly process can be facilitated. Since the filter structure 26 can be rotated even when the connection portion 56 is connected to the pump suction port 54, the degree of freedom at the time of attachment / detachment is widened, and the attachment / detachment work is performed in a posture corresponding to the shape of the ice making water tank 14. Can do. That is, as in the embodiment, when the installation space 70 in the ice making water tank 14 is small, the filter structure 26 is connected to the pump suction port 54 in the insertion posture, and then the filter structure 26 is rotated. Thus, the mounting posture can be achieved, and the attaching / detaching work can be made efficient.

  In the embodiment, since one mesh member 50 is used, the manufacturing cost is low. Further, since the mesh member 50 is also disposed on the hinge portion 38, the strength of the hinge portion 38 can be improved. In addition, since the fitting frame portion 46 of the first half 32 faces the joint opening surface 44 of the second half 36, a gap is hardly generated in both the halves 32 and 36, and the mesh member 50 passes through the mesh member 50. It is possible to prevent the ice making water not flowing into the space S of the filter structure 26. In the embodiment, since the filter structure 26 has a long oval shape in a side view, the deepest portion 68 of the tank portion 66 can be easily accessed, and attachment / detachment work is facilitated. In addition, since the filter structure 26 has an oval shape, the filter structure 26 functions like a lever when rotating, and there is no need to separately provide a lever member or the like.

  In the embodiment, since the filter structure 26 is fixed in a state of being sandwiched from the front and rear by the fixing portion 58 and the front wall portion 72, the filter structure 26 can be securely held. In addition, if the distance between the front wall portion 72 and the front end of the fixing portion 58 is set to a dimension that allows the filter structure 26 to be fitted, the filter structure 26 can be supported regardless of the shape of the tank portion 66. Therefore, the versatility of the ice making water tank 14 becomes high, and the product cost can be suppressed. Further, in the embodiment, the engagement portion 64 is engaged with the rotation restricting piece 62 so as to restrict the rotation of the filter structure 26. Therefore, the projecting dimension of the rotation restricting piece 62 can be adjusted. For example, the rotation of the filter structure 26 can be restricted without depending on the molding accuracy of the tank portion 66. Further, when the engaging portion 64 rides on the rotation restricting piece 62, a load is applied to the filter structure 26 due to the reaction. As described above, the filter structure 26 is moved in the direction of the rotation axis by the fixing portion 58. Therefore, the connecting portion 56 does not come off from the pump suction port 54.

(Example of change)
In the embodiment, the case where the plate-like fixing portion 58 is provided on the rear wall portion 76 is illustrated. However, as the fixing portion that can be adopted in the present invention, other configurations can be appropriately adopted as long as they can abut against the filter structure 26 in the rotating position and the mounting posture and can regulate the position in the front-rear direction. It is. For example, as shown in FIG. 5, a fixed wall portion 82 protruding forward may be integrally formed with the rear wall portion 76 as the fixed portion.

  In addition, the filter structure 26 according to the embodiment is formed in an oval shape in a side view, but is not necessarily limited to this shape, and may be a three-dimensional shape that can secure a predetermined surface area such as a rectangular parallelepiped shape. That's fine. Furthermore, in the embodiment, the first half 32 and the second half 36 are molded from one mold, but each half may be molded from a separate mold.

It is a schematic front view which shows the ice making mechanism of the injection type automatic ice making machine which concerns on an Example. It is a perspective view which shows the filter structure which concerns on an Example, (a) shows the state which closed the 1st half body and the 2nd half body, (b) opened the 1st half body and the 2nd half body Indicates the state of the It is a top view of the ice making water tank concerning an example. It is sectional drawing of the ice making water tank which concerns on an Example, (a) shows the case where a filter structure is made into an insertion attitude | position, (b) shows the case where a filter structure is made into an attachment attitude | position. It is a top view of the ice making water tank provided with the fixing | fixed part which concerns on the example of a change.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Ice making chamber, 14 Ice making water tank, 28 Frame main body 42 Inflow opening surface (inflow part), 50 mesh member, 54 Pump suction inlet 56 Connection part, 58 Fixing part, 60 Contacted part, 62 Rotation restriction piece 64 Engagement Joint part, 70 Installation space (accommodating part), 74 Pump motor 74a Suction pipe, S space

Claims (3)

A mounting structure for attaching the filter structure to the pump suction port (54) established in the ice making water tank (14),
The filter structure is
A frame body (28) in which a space (S) having a predetermined capacity is internally defined, and an inflow portion (42) for allowing ice-making water to flow into the space (S) is opened,
The suction pipe (74a) of the pump motor (74) and the space (S) provided on the frame main body (28) and detachably attached to the pump suction port (54) and connected to the pump suction port (54). ) To communicate with the connection (56),
A mesh member (50) covering the inflow part (42) ;
A contacted part (60) provided on the opposite side of the connection part (56) in the frame body (28) ,
The frame main body (28) is formed in a shape that can be fitted into a housing part (70) that is internally defined in a portion where the pump suction port (54) faces in the ice making water tank (14) ,
By rotating the frame body (28) with the connection part (56) connected to the pump suction port (54), the contacted part (60) is provided in the housing part (70). The frame body (28) is fitted into the housing part (70) so that the movement in the direction of the rotation axis is regulated by being abutted and supported by the fixed part (58). Mounting structure for the filter structure. A mounting structure for attaching the filter structure to the pump suction port (54) established in the ice making water tank (14),
The filter structure is
A frame body (28) in which a space (S) having a predetermined capacity is internally defined, and an inflow portion (42) for allowing ice-making water to flow into the space (S) is opened,
The suction pipe (74a) of the pump motor (74) and the space (S) provided on the frame main body (28) and detachably attached to the pump suction port (54) and connected to the pump suction port (54). ) To communicate with the connection (56),
A mesh member (50) covering the inflow part (42);
An engagement portion (64) provided on the frame body (28),
The frame main body (28) is formed in a shape that can be fitted into a housing part (70) that is internally defined in a portion where the pump suction port (54) faces in the ice making water tank (14),
When the connection portion (56) is connected to the pump suction port (54) and the frame body (28) is rotated in one direction and fitted into the housing portion (70), the engagement portion (64) engages with the rotation restricting piece (62) provided in the housing part (70) so that the rotation of the frame body (28) in the other direction is restricted.
A filter structure mounting structure characterized by the above . The frame body (28) is provided with an engaging portion (64), and the frame body (28) is rotated in one direction while the connection portion (56) is connected to the pump suction port (54). When engaged with the accommodating part (70), the engaging part (64) engages with the rotation restricting piece (62) provided in the accommodating part (70) to move in the other direction of the frame body (28). mounting structure of the filter structure of claim 1 Symbol placement were as rotation is restricted.

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