JP4857722B2 - Garbage disposal equipment - Google Patents

Description

  The present invention relates to a garbage disposal apparatus for crushing garbage generated in a kitchen or the like, and more particularly to a garbage disposal apparatus in which a crushing unit for crushing garbage is easily attached and detached.

  A grinder-type apparatus is known as a garbage disposal apparatus for crushing garbage such as garbage generated in ordinary households and restaurants. The grinder-type garbage disposal apparatus has a configuration in which rotating crushing blades and radial crushing blades provided with comb-like teeth are radially stacked and accommodated in a hopper (see, for example, Patent Documents 1 and 2). .

  In a grinder-type garbage disposal device, the comb teeth of the rotating crushing blades and fixed crushing blades that are stacked are engaged with each other with a slight interval. Crush it with a scissors at the comb teeth of the blade.

  The pitch between the stacked rotary crushing blades and fixed crushing blades becomes finer as it goes to the lower layer. It is further finely crushed by the blade and the fixed crushing blade and discharged downward.

  In such a grinder-type garbage disposal apparatus, a garbage disposal apparatus has also been proposed in which a crushing blade for crushing garbage can be easily detached from the garbage disposal apparatus main body (hopper) (for example, Patent Documents). 3).

  This garbage disposal apparatus is provided with a housing detachably in the hopper. A crushing unit composed of a rotary crushing blade and a fixed crushing blade is mounted and fixed in the housing. The crushing unit is fixed to the housing by fitting the fixed crushing blade of the crushing unit into a recessed groove provided on the inner wall of the housing and using a C-ring from the lower side. As a structure different from this Patent Document 3, a structure that is fixed from both the upper surface side and the lower surface side of the housing has been developed. In this case, the upper surface side of the housing is fixed by a fixing plate using screws, and the lower surface side is fixed by a C ring.

  To remove the housing or crushing unit from the hopper, the housing is lifted from the hopper. To remove the crushing unit from the housing, the C-ring that fixes the crushing unit is removed from the housing.

JP-T-2002-521193 JP-T-2002-524233 JP 2004-298809 A

  By the way, in the garbage processing apparatus disclosed by patent document 3, by carrying out crushing process repeatedly, the crushing unit with which the housing | casing and the inside were mounted | worn becomes dirty, and a certain smell is emitted depending on the case. There is.

  Therefore, it is preferable to clean the garbage disposal apparatus regularly or irregularly. In the garbage disposal apparatus disclosed in Patent Document 3, in order to clean the outer surface of the housing, it is only necessary to lift the housing from the hopper and remove it.

  In order to clean the crushing blade mounted in the housing together with the inner surface of the housing, it is necessary to remove the C-ring attached to the lower surface of the housing as described above. Alternatively, it is necessary to remove each of the fixing plate and the C ring for fixing to the housing from the housing. However, the removal of the C ring is particularly troublesome.

  In addition, since the crushing unit itself becomes dirty due to long-term use, the crushing unit itself may be disassembled and cleaned. In order to disassemble the crushing unit, the screw of the connecting shaft provided on the crushing blade must be removed, but since the screw is attached to the lower side of the crushing unit, the work of removing the screw is also troublesome except for the work. . Therefore, cleaning the garbage disposal device is a troublesome work for a housewife who keeps the kitchen.

  Therefore, the present invention solves such a conventional problem, and proposes a garbage disposal apparatus in which a crushing unit can be easily detached and disassembled.

To solve the problems described above, the invention described in claim 1, the crushing rotary blade stacking a crushing fixed blade alternately, and the crushing rotary blade and driven to rotate the crushing rotary blade and the crushing fixed blade In the garbage processing apparatus for crushing garbage and discharging downward, the fixed crushing blade and the rotary crushing blade stacked on each other are integrated by a rotary drive shaft to form a crushing unit, and the rotary drive shaft has one end As a connecting portion that is provided as a detachable fitting portion with respect to the drive shaft of the driving means that is connected to the rotary drive shaft, and the other end side is connected and integrated with a plurality of crushing blades constituting the crushing unit Provided, a locking portion for locking the rotary crushing blade located at the uppermost stage is provided at the tip of the connecting portion, the crushing unit is provided with a gripping portion, and the gripping portion is pulled up to Housed in hopper The crushing unit is configured to be removable from the hopper, rotation prevention means provided on the fixed crushing blade is fitted to an inner wall of a hopper that houses the crushing unit, and the rotation prevention means A pair of long tabs provided on the outer peripheral end surface of the fixed crushing blade, and the hopper has an inner wall formed with a fitting groove into which the long tab corresponding to the long tab is fitted, and the long The tab is characterized in that the width of the upper end side of the long tab is made substantially the same as the width of the fitting groove, and becomes slightly narrower toward the lower end .

  In this invention, the rotation crushing means is provided on the fixed crushing blade constituting the crushing unit, and this rotation prevention means is configured so that it can be directly mounted and fitted to the hopper.

  The rotation preventing means is constituted by a tab provided on the outer peripheral end face of the fixed crushing blade, while a fitting groove into which the tab is fitted is provided directly in the hopper. The tab provided on the fixed crushing blade (first fixed crushing blade) located at the uppermost stage is a long tab that extends to the vicinity of the opening end surface of the hopper. The crushing unit is configured so that the rotary crushing blade can freely rotate with respect to the hopper. By mounting the tab in the fitting groove, the fixed crushing blade, in other words, the crushing unit can be fixed to the hopper.

  The crushing unit is provided with a rotary drive shaft that is detachable from drive means (drive motor). The rotary drive shaft is integrally formed with the lowermost rotary crushing blade. One end (lower end) of the rotary drive shaft is provided with a fitting portion that can be fitted to the drive shaft of the drive motor, and the other end (upper end). The side is provided with a connecting part that connects and integrates a plurality of crushing blades constituting the crushing unit, and a screw groove is cut at the end of the connecting part to lock the rotary crushing blade located at the uppermost stage. The locking portion is made. By fitting a screw into the locking portion, a crushing unit in which a plurality of crushing blades are integrated via the rotary drive shaft is obtained.

  Therefore, in the integrated crushing unit, the crushing unit can be set in the hopper by mounting the tab provided on the fixed crushing blade in the fitting groove. No means for fixing the crushing unit to the hopper is necessary.

  When the crushing unit is mounted, since the fitting portion of the rotation drive shaft is fitted to the drive shaft of the drive motor, the rotational force of the drive motor can be transmitted to the crushing unit. The fitting between the rotary drive shaft and the drive shaft does not come off due to the weight of the crushing unit even during the rotation of the crushing unit.

  In order to remove the crushing unit from the hopper, it is only necessary to pull up the crushing unit using a gripping part provided on the shaft of the rotary crushing blade provided at the uppermost stage. And if the screw which has stopped the rotation drive shaft is removed, the plurality of crushing blades which constitute the crushing unit can be disassembled for each single item. Since the housing is not provided, it is not necessary to remove the crushing unit from the housing.

  According to this invention, the rotation crushing means is provided on the fixed crushing blade constituting the crushing unit, and the rotation prevention means is directly attached to the hopper and can be fitted.

  According to this, the crushing unit can be taken out only by pulling up the crushing unit from the hopper, and the crushing unit can be easily disassembled for each crushing blade only by removing the screw screwed to the rotary drive shaft. Therefore, the inside of the hopper and the crushing unit can be easily cleaned and can be easily assembled, so that the crushing unit can be easily mounted in the hopper. Since there is no housing, the number of components is reduced and the cost of the garbage disposal apparatus can be reduced.

  Embodiments of the garbage disposal apparatus of the present invention will be described below with reference to the drawings.

  FIG. 1 is a front sectional view showing an outline of the configuration of the garbage disposal apparatus 1 according to this embodiment. The garbage disposal apparatus 1 is the grinder type mentioned above, and is installed on the lower surface side of the kitchen sink S provided in the kitchen facility. The garbage disposal apparatus 1 has a cylindrical shape and has a hopper 3 into which garbage or the like is charged. The upper end of the hopper 3 is fitted and fixed to the opening of the kitchen sink S via the attachment means 2 (shown by a chain line).

  The crushing unit 4 is mounted inside the hopper 3 so as to be detachable from the hopper 3. The crushing unit 4 has the third rotary crushing blade 16 at the lowermost stage, and a fitting portion 37 provided on the lower surface of the hub is fitted to the drive shaft 10 of the reduction unit (not shown). The lower part of the hopper 3 which is the apparatus main body is a housing (case) for fixing to the kitchen sink S, and a drive motor and a speed reduction unit as drive means are installed in the housing (not shown). The drive motor rotates the rotary crushing blade of the crushing unit 4 via the speed reduction unit. Although details are not shown, the drive shaft 10 for transmitting the driving force to the crushing unit 4 has a fitting portion 37 with the crushing unit 4 formed in a square shaft shape or a spline shaft shape.

  The hopper 3 is an upright cylindrical tubular body, and as shown in FIG. 2A, on its inner peripheral surface, in this example, extends from the input opening 7 side to the lower side at a position 180 ° apart. A pair of fitting portions (groove portions in this example) 3a is formed. The crushing unit 4 is inserted into and removed from the input opening 7 and is detachable from the hopper 3. Details will be described later.

  As shown in FIGS. 1 and 2B, a drain pipe connection port 8 is provided at the lower end of the peripheral surface of the hopper 3. A bottom plate 9 inclined toward the drain pipe connection port 8 is provided inside the hopper 3, and the central portion of the bottom plate 9 serves as a bearing portion that receives the drive shaft 10 of the reduction unit.

  A lid body (shown by a chain line) 11 shown in FIG. 1 is detachably attached to the charging opening 7 of the hopper 3. When the garbage disposal apparatus 1 is used, the input opening 7 is closed by the lid 11 so that a hand or the like is not inadvertently inserted into the hopper 3 during the garbage treatment, and the crushed garbage Garbage is prevented from scattering to the kitchen sink S side.

  The drive motor is started in conjunction with the lid 11. For this purpose, a detection means for detecting that the closing opening 7 is closed using a permanent magnet or the like provided on the lid 11 is provided. When it is detected by the magnetic sensor provided on the hopper 3 side that the closing opening 7 is closed, the drive of the drive motor is controlled by a control means (not shown).

  FIG. 3 and subsequent figures show configuration examples of the crushing unit 4 constituting the garbage disposal apparatus 1. 3 is a front sectional view showing the relationship between the crushing unit 4 and the hopper 3, and FIG. 4 is a sectional view showing the relationship between the crushing unit 4 and the hopper 3 when the crushing unit 4 is disassembled.

  The crushing unit 4 is composed of a plurality of crushing blades, and in this example, five crushing blades are stacked. That is, as shown in FIGS. 1, 3 and 4, the first rotary crushing blade 12, the first fixed crushing blade 13, the second rotary crushing blade 14, the second fixed crushing blade 15 and the third rotary crushing blade 16 are The crushing unit 4 is configured by stacking in this order. A crushing chamber is configured by holding the crushing unit 4 on the inner surface of the hopper 3. Specific examples of the crushing blade are shown in FIG.

  As shown in FIG. 3, the first rotary crushing blade 12, the first fixed crushing blade 13, the second rotary crushing blade 14, the second fixed crushing blade 15, and the third rotary crushing blade 16 have almost no vertical spacing. So that the crushed garbage does not enter the gap above and below the crushing blade and remain in the crushing unit 4.

  5 shows the first rotary crushing blade 12 arranged at the uppermost stage of the crushing unit 4, FIG. 5A is a plan view thereof, FIG. 5B is a front view thereof, and FIG. 5C is a side view thereof. The first rotary crushing blade 12 includes a single stirring arm 20 that extends horizontally from the side portion of the bearing portion 19. As for the 1st rotation crushing blade 12, the pressing surface 20a is formed in the front and back both surfaces in the rotation direction of the stirring arm 20. As shown in FIG.

  The pushing surface 20 a is an inclined surface (tapered surface) inclined in a direction in which the upper end protrudes from the lower end on both side surfaces of the stirring arm 20. By forming the pushing surfaces 20a on both side surfaces of the agitating arm 20, the first rotary crushing blade 12 can apply a pressing force to the garbage that is in contact with the pushing surface 20a by bidirectional rotation. it can. Thereby, the 1st rotation crushing blade 12 takes in garbage by rotation operation, and pushes it into the crushing blade of a lower stage.

  Moreover, the edge 20b is formed in the lower end side of the both sides | surfaces of the pushing surface 20a, and the 1st rotation crushing blade 12 is a crushing blade which crushes garbage roughly in cooperation with the 1st fixed crushing blade 13 shown in FIG. Function.

  A handle 21 is formed on the upper surface of the stirring arm 20 in the first rotary crushing blade 12. The handle 21 is provided at a position 90 ° away from the stirring arm 20 so as to extend from the bearing portion 19 to the left and right by the same length. The handle 21 functions as a grip portion (handle) when pulling up the crushing unit 4.

  Since the handle 21 is used as a gripping portion, the handle 21 is selected to have a length enough for a finger. The bearing portion 19 is provided with an insertion hole 19a through which a shaft head (locking portion) of a rotation drive shaft 36 (see FIG. 3) provided on the third rotary crushing blade 16 described later can be inserted. The insertion hole 19a has a D-shaped cross section. Accordingly, the corresponding portion of the rotary drive shaft 36 has a D-shaped cross section, so that both are rotationally integrated.

  FIG. 6 shows the first fixed crushing blade 13 disposed in the lower stage of the first rotary crushing blade 12, FIG. 6A is a plan view, FIG. 6B is a front view, and FIG. 6C is a side view thereof. The first fixed crushing blade 13 includes two arms 23 extending horizontally from the hub 22 at intervals of 180 degrees. Each arm 23 has a flat plate shape, and edges are formed at the upper and lower ends of both side surfaces, and functions as a crushing blade in cooperation with the first rotary crushing blade 12 and the second rotary crushing blade 14 shown in FIG.

  Each arm 23 is provided with a tab 24 that functions as a rotation preventing means at each tip. The tab 24 is an arm extending in the vertical direction so as to extend in the longitudinal direction of the hopper 3, and the rotation of the first fixed crushing blade 13 can be performed by fitting the tab 24 into the fitting groove 3 a of the hopper 3. regulate. In this example, a long tab having an entire length selected in consideration of the mounting position (depth) of the first rotary crushing blade 12 with respect to the hopper 3 is used.

  The reason why the long tabs 24 are used is to ensure that the rotation of the first fixed crushing blade 13 is restricted. The second is to fill the fitting groove 3a with the tab 24 while reducing the space of the fitting groove 3a as much as possible. For this reason, the tab 24a extending upward is selected several times longer than the tab 24b provided below the arm 23, and the fitting length with respect to the fitting groove 3a is made longer. Further, when the crushing unit 4 is mounted on the hopper 3 as shown in FIG. 1 by lengthening the upper tab 24a in this way, the space from the input opening 7 side to the tip of the upper tab 24a is reduced, and the fitting is performed. The crushed garbage is prevented from adhering in the groove 3a.

  As shown in FIG. 6C, the width of the upper end side of the tab 24 is selected so as to be substantially the same as the width of the fitting groove 3a, and becomes slightly narrower toward the lower end. This is to reduce backlash after the tab 24 is mounted on the fitting groove 3a and to more smoothly engage the tab 24 with the fitting groove 3a.

  The lower tab 24b is formed so that a gap of a predetermined height is formed when the second rotary crushing blade 14 is interposed between the first fixed crushing blade 13 and the second fixed crushing blade 15. Is provided. Therefore, in this example, the length of the lower tab 24b is selected to be approximately ½ of the length to the cutting edge of the second rotary crushing blade 14.

  The diameter of the inner hole 23a of the hub 22 is larger than the diameter of the second rotary crushing blade 14 shown in FIG. 7 and the diameter of the rotary drive shaft 36. What is the shaft part of the second rotary crushing blade 14 and the rotary drive shaft 36? Each dimension does not interfere.

  FIG. 7 shows the second rotary crushing blade 14. The second rotary crushing blade 14 is disposed in the lower stage of the first fixed crushing blade 13. FIG. 7A is a plan view thereof, and FIG. 7B is a cross-sectional view thereof taken along the line AA.

  The second rotary crushing blade 14 includes three arms 28 that extend radially from the hub 27 at intervals of 120 degrees. Each arm 28 has a radius slightly shorter than the inner diameter of the hopper 3 so as not to contact the inner wall of the hopper 3. Each arm 28 is formed with a comb tooth portion 28a having a predetermined pitch on the bottom surface.

  An engagement hole 27 a is formed at the center of the hub 27 of the second rotary crushing blade 14, and is fitted to the rotation drive shaft 36, whereby a rotational force is applied to the second rotary crushing blade 14. Therefore, like the second rotary crushing blade 14, the engagement hole 27 a that comes into contact with the second rotary crushing blade 14 is non-circular (for example, a square hole) so as to be rotationally integrated with the rotary drive shaft 36. The cross section may have a D shape as described above.

  FIG. 8 shows an example of the second fixed crushing blade 15. The 2nd fixed crushing blade 15 is arrange | positioned at the lower stage of the 2nd rotary crushing blade 14 so that the 2nd rotary crushing blade 14 may mesh | engage. FIG. 8A is a plan view, and FIG.

  The second fixed crushing blade 15 has a shape in which a ring 33 surrounds eight arms 31 extending radially in a tangential direction from the hub 30 at equal intervals. A pair of tabs 33 a are formed on the outer periphery of the ring 33 at intervals of 180 °. The pair of tabs 33 a function as rotation preventing means for fixing the second fixed crushing blade 15 to the hopper 3. Therefore, the pair of tabs 33a is formed as a plate body slightly narrower than the width so that the tabs 33a can be fitted in the fitting grooves 3a formed on the inner wall of the hopper 3. This width is substantially the same as the width of the tab 24 b of the first fixed crushing blade 13. The rotation of the second fixed crushing blade 15 is regulated by fitting the tab 33a into the fitting groove 3a.

  These tabs 33a have a predetermined height, and the lower tab 24b of the first fixed crushing blade 13 is in contact with the upper surface of the tab 33a, so that the first fixed crushing blade 13 and the second fixed crushing blade 15 are in contact with each other. A gap having a predetermined height is formed between them, and the size is selected so that the second rotary crushing blade 14 is just engaged. The center hole 30a of the hub 30 is dimensioned so as not to interfere with the rotation drive shaft 36.

  Of the eight arms 31, the second fixed crushing blade 15 has a comb tooth portion 31a formed on the upper surface of the six arms 31. The comb teeth portion 31a of the second fixed crushing blade 15 has a pitch that meshes with the comb teeth portion 28a of the second rotary crushing blade 14 shown in FIG. 7, and as shown in FIG. 2 When the fixed crushing blades 15 are overlapped, the comb-tooth portions 28a and 31a of both are in an engaged state in which a slight gap is formed.

  Thereby, the comb tooth portion 31a of the second fixed crushing blade 15 crushes the garbage sent from the upper crushing blade in cooperation with the comb tooth portion 28a of the second rotary crushing blade 14.

  As described above, since the number of the arms 28 of the second rotary crushing blade 14 is three and the number of the arms 31 of the second fixed crushing blade 15 is eight, the distance between the arms 31 is narrower than the distance between the arms 28.

  For this reason, when the comb tooth portions 31a are provided on all the eight arms 31, the comb tooth portions 31a of the second fixed crushing blade 15 always exist between the arms 28 of the second rotary crushing blade 14, and a certain degree When the block-shaped garbage of a magnitude | size is thrown in, the situation which the garbage does not enter between the arms 28 of the 2nd crushing blade 14 and becomes difficult to crush occurs.

  Therefore, in the second fixed crushing blade 15, among the eight arms 31, for example, the two arms 32 are not provided with the comb-tooth portion 31 a, so that the second rotary crushing blade 14 is rotated during the rotation operation. 2 When the arm 31 not provided with the comb tooth portion 31a of the fixed crushing blade 15 is positioned between the arms 28 of the second rotary crushing blade 14, a wide space is formed in the circumferential direction.

  Thereby, even when block-shaped garbage having a certain size is introduced, the garbage enters between the arms 28 of the second rotary crushing blade 14, and the comb tooth portion 28 a is rotated by the rotation of the second rotary crushing blade 14. And the garbage is crushed in cooperation with the comb tooth portion 31a of the other arm 31 of the second fixed crushing blade 15.

  In addition, since the crushing ability is reduced when the number of the arms 31 that are not provided with the comb-tooth portions 31a is large in the second fixed crushing blade 15, for example, when the eight arms 31 are provided, the arms 32 that are not provided with the comb-tooth portions 31a. As shown in the drawing, about two are preferable.

  Each arm 32 extends radially along the tangential direction of the hub 30 so that when the second rotary crushing blade 14 rotates, the meshing point with the second fixed crushing blade 15 is shifted in the circumferential direction, The crushing load peak is suppressed and the load is flattened.

  As shown in FIG. 8A, the second fixed crushing blade 15 has pressing surfaces 31 b and 32 a formed on the side surfaces located on the rotation direction side among the side surfaces of the arms 31 and 32. The pressing surfaces 31b and 32a are both wave-like wavefronts, and are formed as wavefronts having a taper whose lower end is shorter than the upper end. By making the pressing surfaces 31b and 32a into wavefronts, the garbage is captured by the concave portions having the taper, and the movement of the garbage in the radial direction is suppressed, so that the garbage can be reliably crushed.

  FIG. 9 shows an example of the third rotary crushing blade 16, FIG. 9A is a plan view thereof, and FIG. 9B is a cross-sectional view thereof taken along the line AA.

  The third rotary crushing blade 16 is configured as a disc 35, and a large number of slits 35 a are arranged on the entire surface of the disc 35 excluding the central hub 36. In the third rotary crushing blade 16 of this example, a plurality of slit groups are formed, and in each slit group, adjacent slits 35a are arranged substantially in parallel.

  The top surface of the third rotary crushing blade 16 is a flat surface and rotates while contacting the bottom surface of each arm 31 of the second fixed crushing blade 15 shown in FIG. Further, the slit 35a shown in FIG. 9 penetrates the third rotary crushing blade 16 from the front and back, and a sharp edge is formed at the upper opening side opening edge of the slit 35a.

  The upper surface of the third rotary crushing blade 16 rotates while rubbing against the bottom surface of the arm 31 of the second fixed crushing blade 15, but one side of the arms 31 and 32 of the second fixed crushing blade 15 is inclined to the bottom surface side. Since the wave fronts 31b and 32a are formed, the third rotary crushing blade 16 rotates the third waste crushing blade 16 in contact with the garbage (that is crushed to a certain size) in contact with the wave fronts 31b and 32a. A force for pressing the rotary crushing blade 16 can be applied.

  Garbage that has been crushed by the comb tooth portion 28a (FIG. 7) of the second rotary crushing blade 14 and the comb tooth portion 31a (FIG. 8) of the second fixed crushing blade 15 and dropped onto the upper surface of the third rotary crushing blade 16 Although caught in the slit 35a, the garbage is pressed against the slit 35a by the wave fronts 31b and 32a as the third rotary crushing blade 16 rotates. The garbage is crushed by the edge portion of the slit 35a by this rotation operation. The finely crushed food waste falls downward through the slit 35a, passes through the bottom plate 9 of the hopper 3 shown in FIG. 1, and is discharged from the drain pipe connection port 8 to the outside.

  In addition, the slit 35a forms the opening part (or opening step part) which becomes wide toward the bottom face side, so that the garbage pushed into the slit 35a easily falls.

  A rotary drive shaft 36 is integrally formed with the disk 35 at the center of the third rotary crushing blade 16. The rotary drive shaft 36 is rotationally integrated with the first and second rotary crushing blades 12 and 14, and is rotationally free with respect to the first and second fixed crushing blades 13 and 15. It is made into a shape. Therefore, the rotary drive shaft 36 corresponding to the first and second rotary crushing blades 12 and 14 is a square shaft portion (fitting shaft portion), and the rest are round shafts. And the screw part is cut in the axial head, and it is comprised so that it may function as the latching | locking part 36a.

  A fitting portion 37 that functions as a part of the rotary drive shaft 36 is provided on the lower surface of the disc 35, and is configured to be rotated and engaged with the drive shaft 10 of the reduction unit 5 described above. In order for the fitting part 37 to be in a good fitting state with the drive shaft 10, the inner hole 37a (see FIG. 3) is a square hole or a hexagonal hole. The latter is illustrated in FIG. It is assumed that the fitting length of the fitting portion 37 is selected so that the fitting portion 37 is in a sufficiently fitted state with the drive shaft 10 of the reduction unit.

  Now, the first rotary crushing blade 12, the first fixed crushing blade 13, the second rotary crushing blade 14, the second fixed crushing blade 15 and the third rotary crushing blade 16 thus configured are arranged in this order, and The three rotation crushing blades 16 are stacked on each other by passing through a rotation drive shaft 36 provided on the three-rotation crushing blade 16. Thereafter, a crushing unit 4 in which a plurality of crushing blades 12 to 16 are integrated is obtained by screwing and tightening a screw 29a from an upper end of a locking portion 36a which is a shaft head of the rotary drive shaft 36 ( (See FIG. 3). At this time, the tabs 24 of the first fixed crushing blades 13 and the tabs 33a of the second fixed crushing blades 15 are integrated in a state where their positional relationships are adjusted so that they are continuous (in a straight line).

  Then, with the tabs 24a and 33a being fitted along the fitting groove 3a, the crushing unit 4 is lowered in the hopper 3 along the fitting groove 3a. At this time, the crushing unit 4 is lowered using the grip portion 21. When the crushing unit 4 is lowered to the bottom surface of the hopper 3, the fitting portion 37 provided on the third rotary crushing blade 16 is fitted to the drive shaft 10 of the speed reduction unit shown in FIG.

  Here, the tabs 24a and 33a of the crushing unit 4 are only mounted in the fitting groove 3a, and it is not necessary to fix the tabs 24a and 33a to the hopper 3 with screws or the like. This is because the crushing unit 4 can be stably locked to the hopper 3 by using the long tab 24a and the relatively short tab 33a. Thus, by extending the tab 24a for a relatively long time, it is possible to reliably fix the crushing unit 4 in the hopper 3 while preventing the crushing unit 4 from rotating. Since the crushing unit 4 is merely fitted to the hopper 3, the crushing unit 4 can be easily pulled up. Therefore, the hopper 3 and the crushing unit 4 can be easily cleaned.

  Since the crushing unit 4 has a structure that is directly fixed to the hopper 3, a conventional housing can be prepared, and the structure for fixing the crushing unit to the housing can be wiped out. That is, it is possible to reduce the number of components and the associated cost reduction.

  Since the crushing unit 4 is fitted to the drive shaft 10 by its own weight, the rotary drive shaft 36 is not detached from the drive shaft 10 during operation of the apparatus.

  Now, since the crushing unit 4 is mounted and fixed in the hopper 3 and the drive shaft 10 is connected to the rotary drive shaft 36, the garbage disposal apparatus 1 operates as follows. Next, the operation of the garbage disposal apparatus 1 will be described.

  When garbage is thrown in from the loading opening 7 and the closing opening 7 is closed by the lid 11, the control means detects that the lid 11 has been closed and rotates the drive motor. Specifically, a rotation operation that repeats the forward rotation and the reverse rotation operation is performed every few seconds, for example, every 5 seconds. The rotation speed of the motor is set to about 100 rpm, and the generation of noise and vibration is suppressed.

  The lid body 11 is formed with a plurality of water supply holes (not shown), so that water can be supplied into the hopper 3 even when the closing opening 7 is closed by the lid body 11. During the garbage crushing process, water is supplied into the hopper 3 by flowing water through the kitchen sink S or the like.

  When the drive motor rotates, in the crushing unit 4, the first rotary crushing blade 12, the second rotary crushing blade 14, and the third rotary crushing blade 16 rotate together. On the other hand, the first fixed crushing blade 13 and the second fixed crushing blade 15 do not rotate by the action of the tabs 24 and 33a.

  Garbage thrown into the hopper 3 from the charging opening 7 is stirred by the stirring arm 20 of the first rotary crushing blade 12 and roughly crushed in cooperation with the arm 23 of the lower first fixed crushing blade 13. At the same time, the crushed garbage is fed between the arms 28 of the second rotary crushing blade 14.

  The garbage sent between the arms 28 of the second rotary crushing blade 14 is rotated by the rotation of the second rotary crushing blade 14 between the comb tooth portion 28a of the arm 28 and the arm 31 of the second fixed crushing blade 15 at the lower stage. It is finely crushed by meshing with the comb teeth portion 31a.

  Here, the 2nd fixed crushing blade 15 is provided with the comb tooth part 31a by rotation of the 2nd rotation crushing blade 14 by providing the arm 32 which does not provide the comb tooth part 31a in the some arm 31. When the non-arm 32 is positioned between the arms 28 of the second rotary crushing blade 14, a large space is formed in the circumferential direction. As a result, even large garbage such as a block can enter between the arms 28 of the second rotary crushing blade 14, and the rotation of the second rotary crushing blade 14 can cause the comb tooth portion 28 a and other fixed crushing blades 15 to The arm 31 is finely crushed by meshing with the comb tooth portion 31a. Thereby, the garbage which mixed various sizes can be crushed with the combination of a small number of fixed crushing blades and rotating crushing blades.

  Garbage crushed by the cooperation of the second rotary crushing blade 14 and the second fixed crushing blade 15 is discharged from the slit 35a by the cooperation of each arm 31 of the second fixed crushing blade 15 and the third rotary crushing blade 16. Is done.

  When the garbage comes into contact with the wavefronts 31b and 32a of the upper arms 31 and 32 by the rotation of the third rotary crushing blade 16, the garbage is downward in the direction of the third rotary crushing blade 16 depending on the inclination angle of the wavefronts 31b and 32a. Receives the force of being pressed on.

  As a result, the garbage is pressed against the slit 35a by the wave fronts 31b and 32a by the rotation of the third rotary crushing blade 16, and further pushed by the wave fronts 31b and 32a while being crushed by the edge of the opening edge on the upper surface side of the slit 35a. And falls downward through the slit 35a.

  As described above, since the slit 35a has a step having a large opening on the bottom surface side, the garbage pushed into the slit 35a falls downward without being clogged by the slit 35a. The crushing unit 4 crushes the garbage while repeating normal rotation and inversion.

  The present invention can be used for general households such as apartment houses and detached houses, and kitchens such as restaurants.

It is front sectional drawing which shows the outline | summary of a structure of the garbage processing apparatus 1 of this Embodiment. The hopper of a garbage disposal apparatus is shown, FIG. 2A is a top view, FIG. 2B is a side view. It is sectional drawing which shows the relationship between the crushing unit of the state which removed the crushing unit, and a hopper. It is sectional drawing which shows the relationship between a crushing unit when a crushing unit is decomposed | disassembled in the state which removed the crushing unit, and a hopper. FIG. 5A is a plan view, FIG. 5B is a front view, and FIG. 5C is a side view. FIG. 6A is a front view, FIG. 6B is a plan view, and FIG. 6C is a side view. A 2nd rotary crushing blade is shown, FIG. 7A is a top view, FIG. 7B is the AA sectional drawing. A 2nd fixed crushing blade is shown, FIG. 8A is a top view, FIG. 8B is the AA sectional drawing. A 3rd rotary crushing blade is shown, FIG. 9 is a top view, FIG. 9B is the side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Garbage disposal apparatus 3 ... Hopper 3a ... Fitting groove 4 ... Crushing unit 10 ... Drive shaft 11 ... Cover body 12 ... 1st rotation crushing blade 13 ... First fixed crushing blade 14 ... second rotary crushing blade 15 ... second fixed crushing blade 16 ... third rotary crushing blade 24 (24a, 24b) ... tab 23 ... arm 33- ··arm

Claims (3)

The crushing rotary blade and the crushing fixed blade alternately stacked, the driven rotating said crushing rotary blade garbage disposal apparatus for discharging downwards by crushing garbage by the above crushing rotary blade and the crushing fixed blade,
A fixed crushing blade and a rotary crushing blade that are stacked on each other are integrated by a rotary drive shaft to form a crushing unit.
The rotational drive shaft is provided as a fitting part that can be attached to and detached from a drive shaft of a drive means connected at one end to the rotational drive shaft, and the other end connects a plurality of crushing blades constituting the crushing unit. Provided as a connecting part that integrates,
At the tip of the connecting part, a locking part for locking the rotary crushing blade located at the uppermost stage is provided,
The crushing unit is provided with a gripping part, and the crushing unit housed in the hopper is configured to be removable from the hopper by lifting the gripping part,
The rotation preventing means provided on the fixed crushing blade is fitted to the inner wall of a hopper that houses the crushing unit,
The rotation preventing means is a pair of long tabs provided on the outer peripheral end surface of the fixed crushing blade,
The hopper has an inner wall formed with a fitting groove into which the long tab corresponding to the long tab is fitted,
The garbage disposal apparatus characterized in that the long tab has a width on the upper end side of the long tab substantially the same as a width of the fitting groove, and is slightly thinner toward the lower end . Upper Symbol crushing fixed blade comprises a first crushing fixed blade and the second crushing fixed blade,
The long tab is composed of a first long tab provided on the first fixed crushing blade and a second long tab provided on the second fixed crushing blade,
When the first fixed crushing blade, the rotary crushing blade, and the second fixed crushing blade are stacked to form the crushing unit, the first long tab and the second long tab are in a straight line. Become a positional relationship
The garbage processing apparatus of Claim 1 characterized by the above-mentioned. When the crushing unit is formed by laminating the first fixed crushing blade, the rotary crushing blade, and the second fixed crushing blade, the lower surface of the first long tab and the upper surface of the second long tab Are in contact with each other to form a gap of a predetermined height between the first fixed crushing blade and the rotary crushing blade, and the rotary crushing blade and the second fixed crushing blade just mesh with each other.
The garbage processing apparatus of Claim 2 characterized by the above-mentioned.

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