JP6402475B2 - Ice making machine and ice making machine - Google Patents

Ice making machine and ice making machine Download PDF

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JP6402475B2
JP6402475B2 JP2014091287A JP2014091287A JP6402475B2 JP 6402475 B2 JP6402475 B2 JP 6402475B2 JP 2014091287 A JP2014091287 A JP 2014091287A JP 2014091287 A JP2014091287 A JP 2014091287A JP 6402475 B2 JP6402475 B2 JP 6402475B2
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ice
crushing blade
crushing
making machine
main shaft
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JP2015210010A (en
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慎 杉本
慎 杉本
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Daiwa Industries Ltd
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Description

この発明は、所定の大きさに製氷された角氷をさらに小さいサイズの砕氷に破砕する砕氷機構及びその砕氷機構を備えた製氷機に関する。   The present invention relates to an ice breaking mechanism that crushes ice cubes made to a predetermined size into smaller crushed ice and an ice making machine equipped with the ice breaking mechanism.

所定の大きさに製氷された角氷を、さらに小さいサイズの砕氷に破砕する砕氷機を備えた製氷機として、例えば特許文献１に示す構成のものがある。この製氷機は、角氷を貯留する氷ホッパーと、この氷ホッパーから供給された角氷を破砕する砕氷機と、砕氷機によって破砕された砕氷を貯留する貯氷室とを備えている。   As an ice making machine equipped with an ice crusher that crushes ice cubes made to a predetermined size into smaller crushed ice, there is one having a configuration shown in Patent Document 1, for example. The ice making machine includes an ice hopper that stores ice cubes, an ice breaker that crushes ice cubes supplied from the ice hopper, and an ice storage chamber that stores ice breaks crushed by the ice breaker.

砕氷機は、破砕刃を有する回転カッタと、この回転カッタと接離自在に対向して設けられた歯付き移動ラックとを備えている（本文献の図６参照）。回転カッタと歯付き移動ラックとの間の隙間に角氷を噛み込ませることによって、この角氷を所定サイズの砕氷に破砕する。   The ice crusher includes a rotating cutter having a crushing blade and a toothed moving rack provided so as to be opposed to and away from the rotating cutter (see FIG. 6 of this document). By making ice cubes into the gap between the rotating cutter and the toothed moving rack, the ice cubes are crushed into crushed ice of a predetermined size.

回転カッタには、破砕刃として丸棒が用いられている（本文献の図３参照）。この破砕刃は、回転カッタの軸に穴を形成し、この穴に破砕刃を挿し込んだ上で溶接したり、回転カッタの軸及び破砕刃に雄ねじと雌ねじを形成して、この軸に破砕刃をねじ込んだりすることによって軸に固定される。   The rotary cutter uses a round bar as a crushing blade (see FIG. 3 of this document). This crushing blade forms a hole in the shaft of the rotary cutter, inserts the crushing blade into this hole and welds it, or forms a male screw and a female screw on the shaft and crushing blade of the rotary cutter, and crushes this shaft. It is fixed to the shaft by screwing the blade.

登録実用新案第２５８８４７９号公報Registered Utility Model No. 2588479

特許文献１に示す回転カッタは、軸に所定間隔で穴やねじを形成して、破砕刃を溶接し又はねじ込まなければならず、溶接の場合はさらに後処理も行う必要がある。このように、穴やねじを所定間隔で形成する等の作業には、多くの作業時間や作業者の熟練を要し、製造コストが増大する問題がある。また、この破砕刃は、使用時間の経過とともに摩耗したり折損したりすることがあるが、破砕刃を溶接によって取り付けると、この破砕刃のみを交換することが困難な場合があり、その場合は回転カッタ全体を交換しなければならないことがある。このため、補修コストの増大を引き起こす問題がある。さらに、破砕刃に使用する丸棒は、この丸棒と角氷との接触が点接触又は線接触となって砕氷の噛み込み力が小さいため、破砕の際に角氷が滑って逃げが生じやすく、砕氷効率が低下する問題もある。   In the rotary cutter shown in Patent Document 1, holes and screws must be formed at predetermined intervals on the shaft, and the crushing blade must be welded or screwed. In the case of welding, further post-processing is required. As described above, work such as forming holes and screws at predetermined intervals requires a lot of work time and skill of an operator, and there is a problem that manufacturing cost increases. In addition, this crushing blade may be worn or broken over time, but if the crushing blade is attached by welding, it may be difficult to replace only this crushing blade. It may be necessary to replace the entire rotating cutter. For this reason, there exists a problem which causes the increase in repair cost. Furthermore, the round bar used for the crushing blade has point contact or line contact between the round bar and the square ice, and the biting force of the crushed ice is small. There is also a problem that the ice breaking efficiency is lowered.

そこで、この発明は、砕氷機構の製造及び補修を安価かつ簡便に行うとともに、砕氷効率の向上を図ることを課題とする。   Accordingly, an object of the present invention is to manufacture and repair an ice breaking mechanism inexpensively and easily and to improve ice breaking efficiency.

上記の課題を解決するため、この発明は、軸周りに回転駆動される、断面が回転対称形の主軸と、前記主軸の断面回転対称形と同形状の透孔が形成され、前記透孔に前記主軸を通してその軸方向から着脱自在に設けられる複数の平板状の破砕刃と、を有する製氷機の砕氷機構を構成した。   In order to solve the above-described problems, the present invention includes a main shaft having a rotationally symmetric section that is rotationally driven about an axis, and a through hole having the same shape as the rotationally symmetric section of the main shaft. An ice breaking mechanism of an ice making machine having a plurality of flat crushing blades detachably provided from the axial direction through the main shaft is configured.

このように、破砕刃に形成した透孔に主軸を通す構成とすることにより、熟練者でなくても砕氷機構の組み立てを容易に、かつ精度よく行うことができる。また、使用時間の経過とともに一部の破砕刃が摩耗又は折損した場合に、摩耗等が生じた破砕刃のみを主軸から抜き取って交換することができる。このため、上記のように回転カッタ全体を交換する場合と比較して、補修コストを大幅に削減することができる。さらに、平板状の破砕刃を採用したことにより、この破砕刃の端面と角氷との接触が面接触状態となって大きな噛み込み力が得られやすく、破砕の際に角氷の逃げが生じにくい。このため、丸棒からなる破砕刃と比較して、角氷に対して大きな打撃が付与され、砕氷効率の向上を図ることもできる。   As described above, by constructing the main shaft through the through-hole formed in the crushing blade, it is possible to easily and accurately assemble the ice crushing mechanism even if it is not an expert. Further, when some of the crushing blades are worn or broken with the passage of time of use, only the crushing blades that are worn or the like can be extracted from the main shaft and replaced. For this reason, compared with the case where the whole rotary cutter is replaced as described above, the repair cost can be greatly reduced. Furthermore, by adopting a flat crushing blade, the contact between the end face of the crushing blade and the ice cubes becomes a surface contact state, and a large biting force is easily obtained, and the ice cubes escape during crushing. Hateful. For this reason, compared with the crushing blade which consists of a round bar, a big hit | damage is provided with respect to ice cube, and the improvement of ice crushing efficiency can also be aimed at.

さらに、主軸の断面を回転対称形とすることにより、前記断面の回転対称数（６回対称等）に応じて、隣り合う破砕刃同士の相対角度が所定角度（例えば、６回対称の場合６０度）だけずれた状態となる。このように、隣り合う破砕刃の相対角度をずらすことで、破砕刃の回転に伴って角氷に連続的に打撃を与えることができ、破砕を効率よく行うことができる。この回転対称の形状は特に限定されず、四角形、六角形、八角形、星形、十字形等、種々の形状を採用することができるが、主軸の入手の容易性、その価格、破砕刃による砕氷効率等の種々の要因を考慮して、六角形又は八角形とするのが好ましい。   Further, by making the cross section of the main shaft rotationally symmetric, the relative angle between adjacent crushing blades is a predetermined angle (for example, 60 times symmetrical 60 according to the rotational symmetry number (six times symmetry, etc.) of the cross section. Degree). Thus, by shifting the relative angle of the adjacent crushing blades, the ice cubes can be continuously hit with the rotation of the crushing blades, and crushing can be performed efficiently. The rotationally symmetric shape is not particularly limited, and various shapes such as a quadrangle, hexagon, octagon, star, and cross shape can be adopted. However, the availability of the spindle, its price, and depending on the crushing blade In consideration of various factors such as ice breaking efficiency, a hexagonal or octagonal shape is preferable.

前記構成においては、前記透孔がＮ回対称形であり、前記破砕刃と、この破砕刃と鏡像関係にある破砕刃との間で、両破砕刃の中心線同士のなす角度が１８０／Ｎ度の関係を有する構成とすることができる。   In the above configuration, the through hole is N-fold symmetric, and the angle between the center lines of the crushing blades between the crushing blades and the crushing blades that are mirror images of the crushing blades is 180 / N. It can be set as the structure which has a degree relationship.

このように破砕刃を構成した場合、隣り合う一組の破砕刃の透孔の向きを揃えつつ、一方の破砕刃の表裏面を逆向きとすることによって、その一方及び他方の破砕刃の中心線のなす角度（相対角度）を１８０／Ｎ度とすることができる。例えば、透孔が６回対称形の場合、一対の破砕刃のなす前記相対角度は１８０／６＝３０度となる。この一対（２枚）の破砕刃を、６回対称形をなす主軸に３６０／６＝６０度ずつ順次ずらしながら装着していくことにより、各破砕刃が３０度ずつその回転方向にずれた状態となる。   When the crushing blade is configured in this way, by aligning the direction of the through holes of the adjacent pair of crushing blades and by reversing the front and back surfaces of one crushing blade, the centers of the one and the other crushing blades The angle (relative angle) formed by the line can be 180 / N degrees. For example, when the through-hole is 6-fold symmetrical, the relative angle formed by the pair of crushing blades is 180/6 = 30 degrees. A state where each pair of crushing blades is shifted by 30 degrees in the rotational direction by mounting the pair (two pieces) of crushing blades on the main shaft having a 6-fold symmetry while sequentially shifting 360/6 = 60 degrees. It becomes.

一対の破砕刃が互いに鏡像関係をなすように構成し、その表裏面を逆向きに取り付けることにより、断面Ｎ回対称形の主軸に３６０／Ｎ度（６回対称形の場合６０度）ずつ回転角度をずらしながら一枚ずつ破砕刃を取り付けた場合と比較して、その回転角の刻みがより細かくなる（６回対称形の場合３０度）。このため、破砕刃による打撃を角氷に連続的に与えることができ、その砕氷効率を一段と向上することができる。この回転角の刻みは、回転対称の数（Ｎの値）を大きくすることで、さらに小さくすることができる。   A pair of crushing blades are configured to be mirror images of each other, and their front and back surfaces are mounted in opposite directions to rotate 360 / N degrees (60 degrees in the case of 6-fold symmetry) around the main axis of N-fold section. Compared with the case where the crushing blades are attached one by one while shifting the angle, the step of the rotation angle becomes finer (30 degrees in the case of 6-fold symmetry). For this reason, the impact by the crushing blade can be continuously given to the ice cubes, and the ice crushing efficiency can be further improved. The increment of the rotation angle can be further reduced by increasing the number of rotational symmetry (value of N).

前記各構成においては、前記破砕刃の板面から起立し、前記破砕刃と隣り合う他の破砕刃に介在する介在部材を設けた構成とすることができる。   In each said structure, it can be set as the structure which provided the interposition member which stands up from the plate | board surface of the said crushing blade, and intervenes in the other crushing blade adjacent to the said crushing blade.

このように、介在部材を設けることにより、隣り合う破砕刃同士を所定の間隔だけ離間することができるため、角氷に対し安定的に打撃を与えることができる。また、各破砕刃を主軸以外の他点でさらに支持することになり、破砕時における破砕刃のがたつきが低減する。このため、がたつきに起因する騒音の発生や、破砕刃の異常摩耗等の不具合の発生を防ぐことができる。さらに、この介在部材が破砕時に主軸の周りを回転することにより、主軸の周りに挟まった角氷又は砕氷を掻き出す作用が発揮される。このため、砕氷効率の一層の向上を図ることができる。   Thus, by providing the interposition member, the adjacent crushing blades can be separated from each other by a predetermined interval, so that the ice cube can be stably hit. In addition, each crushing blade is further supported by a point other than the main shaft, and the rattling of the crushing blade during crushing is reduced. For this reason, generation | occurrence | production of malfunctions, such as generation | occurrence | production of the noise resulting from rattling and abnormal wear of a crushing blade, can be prevented. Furthermore, when this interposition member rotates around the main shaft during crushing, the action of scraping out ice cubes or crushed ice sandwiched around the main shaft is exhibited. For this reason, the ice-breaking efficiency can be further improved.

前記各構成においては、前記破砕刃に、径方向外側に向かうほど回転方向長さが長くなる打撃部を形成した構成とすることができる。   In each said structure, it can be set as the structure which formed in the said crushing blade the hit | damage part from which a rotation direction length becomes long, so that it goes to radial direction outer side.

このように、打撃部を形成することにより、この打撃部の端面で捉えた角氷が径方向外側に逃げにくく、確実に櫛部との間に噛み込まれる。このため、砕氷効率の一層の向上を図ることができる。   In this way, by forming the striking portion, the ice cubes caught at the end face of the striking portion are unlikely to escape to the outside in the radial direction, and are reliably bitten between the comb portions. For this reason, the ice-breaking efficiency can be further improved.

この発明は、軸周りに回転駆動される、断面が回転対称形の主軸と、前記主軸の断面回転対称形と同形状の透孔が形成され、前記透孔に前記主軸を通してその軸方向から着脱自在に設けられる複数の平板状の破砕刃と、を有する製氷機の砕氷機構を構成した。断面が回転対称形の主軸を採用し、この主軸に破砕刃を通すようにしたため、砕氷機構の組み立て時や補修時にこの破砕刃を容易に着脱することができる。このため、製造コストや補修コストの削減を図ることができる。また、主軸の断面を回転対称形としたことにより、隣り合う破砕刃の相対角度がその回転対称数に応じて、連続的にずれた状態となる。このように連続的に破砕刃をずらすことによって、破砕刃の回転に伴って角氷に連続的に打撃が与えられる。しかも、平板状の破砕刃を採用して、破砕刃の端面と角氷を面接触し得るようにしたことにより、角氷に大きな打撃が作用する。このため、角氷の砕氷効率の一層の向上を図ることができる。   According to the present invention, a main shaft having a rotationally symmetric cross section and a through hole having the same shape as the rotationally symmetric cross section of the main shaft are formed around the shaft, and the through hole is attached to and detached from the axial direction through the main shaft. An ice breaking mechanism of an ice making machine having a plurality of plate-like crushing blades provided freely is configured. Since the main shaft having a rotationally symmetric cross section is adopted and the crushing blade is passed through the main shaft, the crushing blade can be easily attached and detached when the ice breaking mechanism is assembled or repaired. For this reason, it is possible to reduce manufacturing costs and repair costs. Moreover, by making the cross section of the main shaft rotationally symmetric, the relative angles of adjacent crushing blades are continuously shifted according to the rotational symmetry number. By continuously shifting the crushing blade in this manner, the ice cube is continuously hit with the rotation of the crushing blade. In addition, by adopting a flat crushing blade so that the end face of the crushing blade and the ice cube can be brought into surface contact with each other, a large blow acts on the ice cube. For this reason, the ice breaking efficiency of ice cubes can be further improved.

本願発明に係る砕氷機構を備えた砕氷機の縦断面図Longitudinal sectional view of an ice breaker equipped with an ice breaking mechanism according to the present invention 図１に示す砕氷機の斜視図1 is a perspective view of the ice breaker shown in FIG. 図１に示す砕氷機の平面図Plan view of the ice breaker shown in FIG. 図１に示す砕氷機に用いる破砕刃であって、（ａ）は側面図、（ｂ）は（ａ）中のｂ−ｂ線に沿う断面図It is the crushing blade used for the ice crusher shown in FIG. 1, Comprising: (a) is a side view, (b) is sectional drawing which follows the bb line in (a). 図１に示す砕氷機に用いる破砕刃であって、（ａ）は隣り合う一対の破砕刃の縦断面図、（ｂ）は（ａ）中のｂ−ｂ線に沿う断面図、（ｃ）は（ａ）中のｃ−ｃ線に沿う断面図It is the crushing blade used for the ice crusher shown in FIG. 1, Comprising: (a) is a longitudinal cross-sectional view of a pair of adjacent crushing blades, (b) is sectional drawing which follows the bb line in (a), (c). Is a sectional view taken along line cc in (a) （ａ）は主軸に破砕刃を取り付けた状態を示す正面図、（ｂ）は（ａ）中のｂ−ｂ矢視図、（ｃ）は（ａ）中のｃ−ｃ矢視図、（ｄ）は（ａ）中のｄ−ｄ矢視図、（ｅ）は（ａ）中のｅ−ｅ矢視図、（ｆ）は（ａ）中のｆ−ｆ矢視図、（ｇ）は（ａ）中のｇ−ｇ矢視図、（ｈ）は（ａ）中のｈ−ｈ矢視図、（ｉ）は（ａ）中のｉ−ｉ矢視図(A) is the front view which shows the state which attached the crushing blade to the main axis | shaft, (b) is the bb arrow directional view in (a), (c) is the cc arrow directional view in (a), ( d) is a dd arrow view in (a), (e) is an ee arrow view in (a), (f) is an ff arrow view in (a), (g) (A) is a gg arrow view of (a), (h) is an hh arrow view of (a), (i) is an ii arrow view of (a). 主軸に破砕刃を取り付けた状態を示す斜視図The perspective view which shows the state which attached the crushing blade to the main axis | shaft

本願発明に係る製氷機の砕氷機構に係る砕氷機１を図１から図３に示す。この砕氷機１は、所定の大きさ（例えば、２〜３ｃｍ角）に製氷された角氷を貯留する角氷ホッパー２と、破砕した砕氷を貯留する砕氷ホッパー（図示せず）との間に設けられている。この砕氷機１は、モータ３によって軸周りに回転駆動される断面が正六角形の主軸４と、主軸４の断面と同形状の正六角形の透孔５が形成され、主軸４に透孔５を通して設けられる複数の平板状の破砕刃６と、この破砕刃６に臨むように、この破砕刃６と接離自在に設けられた櫛部７とを備えている。モータ３を駆動して破砕刃６を主軸４周りに回転駆動すると、この破砕刃６の先端に形成された打撃部８が櫛部７の各櫛の間を通過するようになっている。   An ice breaker 1 according to an ice breaker mechanism of an ice making machine according to the present invention is shown in FIGS. This ice breaker 1 is provided between a square ice hopper 2 that stores ice cubes that have been made into a predetermined size (for example, 2 to 3 cm square) and an ice breaker hopper (not shown) that stores crushed ice. Is provided. The ice breaker 1 includes a main shaft 4 having a regular hexagonal cross section that is rotationally driven around a shaft by a motor 3, and a regular hexagonal through hole 5 having the same shape as the cross section of the main shaft 4, and the main shaft 4 passes through the through hole 5. A plurality of flat crushing blades 6 are provided, and a comb portion 7 is provided so as to be able to contact and separate from the crushing blades 6 so as to face the crushing blades 6. When the motor 3 is driven to rotate the crushing blade 6 around the main shaft 4, the striking portion 8 formed at the tip of the crushing blade 6 passes between the combs of the comb portion 7.

この破砕刃６と櫛部７との間の隙間に、角氷ホッパー２から供給された角氷を噛み込ませることによって、この角氷を所定サイズの砕氷に破砕する。櫛部７に設けられたサイズ変更機構９を操作して、破砕刃６と櫛部７との間の距離を拡げることによって砕氷サイズを大きく、破砕刃６と櫛部７との間の距離を狭めることによって砕氷サイズを小さくすることができる。この櫛部７の反対側には固定櫛部１０が設けられている。この固定櫛部１０は、破砕刃６の間の隙間から、角氷が砕氷されることなく砕氷ホッパーにそのまま落下するのを防ぐ作用を有している。   By making the ice cubes supplied from the ice cube hopper 2 bite into the gap between the crushing blade 6 and the comb portion 7, the ice cubes are crushed into crushed ice of a predetermined size. By operating the size changing mechanism 9 provided in the comb portion 7 and increasing the distance between the crushing blade 6 and the comb portion 7, the ice breaking size is increased, and by reducing the distance between the crushing blade 6 and the comb portion 7. The crushed ice size can be reduced. On the opposite side of the comb portion 7, a fixed comb portion 10 is provided. The fixed comb portion 10 has an action of preventing the ice cubes from dropping into the ice hopper from the gaps between the crushing blades 6 without being crushed.

図４に示すように、透孔５の近傍には挿入孔１１が形成され、この挿入孔１１には、一端側に縮径部１２が形成された丸棒状の介在部材１３が、破砕刃６の板面から起立するように嵌め込まれている。透孔５を中心として挿入孔１１と対称の位置には、係止孔１４が形成されている。   As shown in FIG. 4, an insertion hole 11 is formed in the vicinity of the through hole 5, and a round bar-shaped interposition member 13 having a reduced diameter portion 12 formed on one end side is provided in the insertion hole 11. It is fitted to stand up from the plate surface. A locking hole 14 is formed at a position symmetrical to the insertion hole 11 around the through hole 5.

破砕刃６の先端に形成された打撃部８は、径方向外側に向かうほど、回転方向長さが長くなる形状となっている。破砕刃６を平板状とするとともに、打撃部８を前記形状とすることにより、破砕刃６の端面と角氷との間の接触を面接触状態として角氷の逃げを防ぎ、この打撃部８と櫛部７との間に角氷がしっかりと噛み込まれた状態となる。このため、破砕刃６による角氷の砕氷効率を大幅に向上することができる。   The hit | damage part 8 formed in the front-end | tip of the crushing blade 6 becomes a shape where a rotation direction length becomes long, so that it goes to a radial direction outer side. The crushing blade 6 has a flat plate shape and the hitting portion 8 has the above-described shape, so that the contact between the end face of the crushing blade 6 and the ice cube is in a surface contact state to prevent the ice cube from escaping. The ice cubes are in a state of being bitten firmly between the comb portion 7 and the comb portion 7. For this reason, the ice breaking efficiency of the ice cubes by the crushing blade 6 can be greatly improved.

この破砕刃６（６ａ）は、鏡像関係にある破砕刃６（６ｂ）との間で、両破砕刃６、６（６ａ、６ｂ）の中心線同士のなす角度が３０度となる関係を有するように形成されている。このため、図５（ａ）に示すように、２枚の破砕刃６ａ、６ｂのうち一方の破砕刃６ａを１８０度だけ透孔５周りに回転するとともに、その表裏を逆向きとし、この一方の破砕刃６ａに設けられた介在部材１３ａの縮径部１２ａを他方の破砕刃６ｂに形成した係止孔１４ｂに、他方の破砕刃６ｂに設けられた介在部材１３ｂの縮径部１２ｂを一方の破砕刃６ａに形成した係止孔１４ａにそれぞれ挿し込んで、隣り合う破砕刃６ａ、６ｂ同士を連結したときに、図５（ｂ）及び（ｃ）に示すように、この隣り合う破砕刃６ａ、６ｂが互いに３０度（θ１＋θ２）透孔の周りに相対回転した状態となる。この相対回転角度は、主軸４（透孔５）の回転対称数によって決まり、Ｎ回対称形の場合、１８０／Ｎ度となる。 This crushing blade 6 (6a) has a relationship that the angle between the center lines of the crushing blades 6 and 6 (6a and 6b) is 30 degrees with the crushing blade 6 (6b) in a mirror image relationship. It is formed as follows. For this reason, as shown in FIG. 5 (a), one of the two crushing blades 6a and 6b is rotated around the through hole 5 by 180 degrees, and the front and back are reversed. The reduced diameter portion 12a of the interposition member 13a provided on the crushing blade 6a is formed in the locking hole 14b formed in the other crushing blade 6b, and the reduced diameter portion 12b of the interposition member 13b provided in the other crushing blade 6b is provided on the other side. When the adjacent crushing blades 6a, 6b are connected to each other by being inserted into the locking holes 14a formed in the crushing blade 6a, as shown in FIGS. 5 (b) and 5 (c), the adjacent crushing blades 6a, the state 6b are relatively rotated about 30 degrees (θ 1 + θ 2) through holes from each other. This relative rotation angle is determined by the rotational symmetry number of the main shaft 4 (through hole 5), and is 180 / N degrees in the case of N-fold symmetry.

なお、この実施形態においては、介在部材１３に形成した縮径部１２を係止孔１４に挿し込む態様としたが、この縮径部１２を形成せず、介在部材１３の端部を対向する破砕刃６の板面に直接突き当てる態様としてもよい。また、この破砕刃６の外形はすべて同一であるため、金型を利用することで、容易に製作することができる。   In this embodiment, the reduced diameter portion 12 formed in the interposition member 13 is inserted into the locking hole 14, but the reduced diameter portion 12 is not formed and the end portion of the interposition member 13 is opposed. It is good also as an aspect directly abutted on the plate | board surface of the crushing blade 6. FIG. Moreover, since all the external shapes of this crushing blade 6 are the same, it can manufacture easily by utilizing a metal mold | die.

介在部材１３によって２枚の破砕刃６、６を所定の間隔だけ離間することにより、角氷の砕氷効率をさらに向上することができる。また、２枚の破砕刃６、６の間に介在部材１３を介在させることにより、破砕時における破砕刃６のがたつきを防止し、がたつきに起因する騒音の発生や、破砕刃６の異常摩耗等の不具合を防止することができる。さらに、この介在部材１３が破砕時に主軸４の周りを回転することにより、主軸４の周りに挟まった角氷又は砕氷が掻き出され、破砕刃６同士の間に砕氷等が挟まったままとなって砕氷効率が低下するのを防ぐことができる。   By separating the two crushing blades 6 and 6 by the intervening member 13 by a predetermined distance, the ice breaking efficiency of the ice cubes can be further improved. In addition, the interposition member 13 is interposed between the two crushing blades 6 and 6 to prevent rattling of the crushing blade 6 during crushing, and noise generated due to rattling and crushing blade 6 can be prevented. Problems such as abnormal wear can be prevented. Further, when the interposing member 13 rotates around the main shaft 4 during crushing, the ice cubes or crushed ice sandwiched around the main shaft 4 is scraped, and the crushed ice or the like remains between the crushing blades 6. As a result, the ice breaking efficiency can be prevented from decreasing.

この介在部材１３は、図４等に示す丸棒状のものに限定されず、例えば、角棒状としたり、透孔５の周りに主軸４方向に起立して設けた凸部状としたりすることもできる。この角棒又は凸部状の介在部材１３が隣り合う破砕刃６の板面と当接することによって、隣り合う破砕刃６を所定の間隔だけ離間する等の作用が発揮されるためである。   The interposed member 13 is not limited to the round bar shape shown in FIG. 4 or the like, and may be, for example, a square bar shape or a convex shape provided upright around the through hole 5 in the direction of the main shaft 4. it can. This is because, when this square bar or convex interposition member 13 comes into contact with the plate surface of the adjacent crushing blade 6, an effect such as separating the adjacent crushing blades 6 by a predetermined interval is exhibited.

このように、互いに３０度回転した一対の破砕刃６、６を主軸４に６０度ずつずらしながら挿し込んでいくと、図６及び図７に示すように、隣り合う全ての破砕刃６が３０度ずつずれた状態となる。隣り合う破砕刃６を所定角度ずつ順次ずらすことにより、角氷に対し打撃を連続的に与えることができ、その破砕を効率よく行うことができる。主軸４に挿し込む破砕刃６の数は、砕氷機１の大きさによって適宜変更することができる。   In this manner, when the pair of crushing blades 6 and 6 rotated 30 degrees with respect to each other are inserted into the main shaft 4 while being shifted by 60 degrees, as shown in FIGS. It will be in a state shifted by degrees. By sequentially shifting the adjacent crushing blades 6 by a predetermined angle, the ice cube can be continuously hit, and the crushing can be performed efficiently. The number of crushing blades 6 to be inserted into the main shaft 4 can be appropriately changed depending on the size of the ice breaker 1.

この実施形態では隣り合う破砕刃６の表裏を逆向きにする構成としたが、全ての破砕刃６の表裏面を同じ向きにして主軸４に挿し込む構成としてもよい。この場合は、隣り合う全ての破砕刃６が６０度ずつずれた状態となる。また、主軸４として断面六角形状のものの代わりに、断面八角形状のものを採用してもよい。上記と同様に、隣り合う破砕刃６（中心には八角形の透孔５が形成されている）の表裏を逆向きとし、その逆向きとした一対の破砕刃６を主軸４に順次挿し込んでいくと、隣り合う全ての破砕刃６が２２．５度ずつずれた状態となる。このように、隣り合う破砕刃６の相対角度を小さくすることにより、角氷の砕氷効率を一層向上できる可能性がある。   In this embodiment, the front and back surfaces of the adjacent crushing blades 6 are reversed. However, the front and back surfaces of all crushing blades 6 may be inserted in the main shaft 4 with the same direction. In this case, all the adjacent crushing blades 6 are shifted by 60 degrees. The main shaft 4 may be an octagonal cross section instead of a hexagonal cross section. Similarly to the above, the front and back of the adjacent crushing blades 6 (in which the octagonal through-hole 5 is formed in the center) are reversed, and a pair of crushing blades 6 that are reversed are sequentially inserted into the main shaft 4. Then, all the adjacent crushing blades 6 are shifted by 22.5 degrees. Thus, there is a possibility that the ice breaking efficiency of the ice cubes can be further improved by reducing the relative angle between the adjacent crushing blades 6.

本願発明に係る砕氷機構は、製氷機に搭載することができるのは当然であるが、製氷機以外にも、製氷機能を備えた冷蔵庫、保冷庫等にも適用することができる。   Naturally, the ice breaking mechanism according to the present invention can be mounted on an ice making machine, but it can also be applied to a refrigerator, a refrigerator, etc. having an ice making function in addition to an ice making machine.

また、上記に示した実施形態はあくまでも一例であって、製氷機の砕氷機構の製造及び補修を安価かつ簡便に行うとともに、砕氷効率の向上を図る、という本願発明の課題を解決し得る限りにおいて、砕氷機構を構成する各部品の配置、各部品の形状等は適宜変更することが許容される。   In addition, the embodiment described above is merely an example, as long as it can solve the problem of the present invention of manufacturing and repairing the ice breaking mechanism of the ice making machine inexpensively and easily and improving the ice breaking efficiency. The arrangement of the parts constituting the ice breaking mechanism, the shape of each part, and the like are allowed to be changed as appropriate.

１ 製氷機
２ 角氷ホッパー
３ モータ
４ 主軸
５ 透孔
６（６ａ、６ｂ） 破砕刃
７ 櫛部
８ 打撃部
９ サイズ変更機構
１０ 固定櫛部
１１ 挿入孔
１２（１２ａ、１２ｂ） 縮径部
１３（１３ａ、１３ｂ） 介在部材
１４（１４ａ、１４ｂ） 係止孔 DESCRIPTION OF SYMBOLS 1 Ice machine 2 Square ice hopper 3 Motor 4 Main shaft 5 Through-hole 6 (6a, 6b) Crushing blade 7 Comb part 8 Impacting part 9 Size change mechanism 10 Fixed comb part 11 Insertion hole 12 (12a, 12b) Reduced diameter part 13 (13a, 13b) Interposition member 14 (14a, 14b) Locking hole

Claims (4)

軸周りに回転駆動される、断面が回転対称形の主軸（４）と、
前記主軸（４）の断面回転対称形と同形状の透孔（５）が形成され、前記透孔（５）に前記主軸（４）を通してその軸方向から着脱自在に設けられる複数の平板状の破砕刃（６）と、
前記破砕刃（６）の板面から起立し、前記破砕刃（６）と隣り合う他の破砕刃（６）に介在し、前記各破砕刃（６）を前記主軸（４）以外の他点でさらに支持して、破砕時に前記主軸（４）の周りを回転する介在部材（１３）と、
を有する製氷機の砕氷機構。 A main axis (4) having a rotationally symmetric cross section, which is driven to rotate about an axis;
A through hole (5) having the same shape as that of the rotationally symmetric section of the main shaft (4) is formed. Crushing blade (6),
Stands from the plate surface of the crushing blade (6), intervenes in another crushing blade (6) adjacent to the crushing blade (6), and each crushing blade (6) other than the main shaft (4) And an intermediate member (13) that rotates around the main shaft (4) during crushing,
The ice-breaking mechanism of the ice making machine. 前記透孔（５）がＮ回対称形であり、前記破砕刃（６）と、この破砕刃（６）と鏡像関係にある破砕刃（６）との間で、両破砕刃（６、６）の中心線同士のなす角度が１８０／Ｎ度の関係を有する請求項１に記載の製氷機の砕氷機構。   The through-hole (5) is N-fold symmetrical, and both the crushing blades (6, 6) are provided between the crushing blade (6) and the crushing blade (6) in a mirror image relationship with the crushing blade (6). The ice breaking mechanism of the ice making machine according to claim 1, wherein the angle formed by the center lines of () is 180 / N degrees. 前記破砕刃（６）に、径方向外側に向かうほど回転方向長さが長くなる打撃部（８）を形成した請求項１又は２に記載の製氷機の砕氷機構。 The ice breaking mechanism of the ice making machine of Claim 1 or 2 which formed the hit | damage part (8) to which a rotation direction length becomes long in the said crushing blade (6) toward a radial direction outer side. 請求項１から３のいずれか1項に記載の製氷機の砕氷機構を備えた製氷機。 The ice making machine provided with the ice breaking mechanism of the ice making machine of any one of Claim 1 to 3 .
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