JP2021096063A - refrigerator - Google Patents

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JP2021096063A
JP2021096063A JP2021035059A JP2021035059A JP2021096063A JP 2021096063 A JP2021096063 A JP 2021096063A JP 2021035059 A JP2021035059 A JP 2021035059A JP 2021035059 A JP2021035059 A JP 2021035059A JP 2021096063 A JP2021096063 A JP 2021096063A
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door
lower hinge
fixing member
refrigerator
stopper
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JP7178436B2 (en
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怜 武田
Rei Takeda
怜 武田
森野 厚司
Koji Morino
厚司 森野
拓真 池田
Takuma Ikeda
拓真 池田
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Hitachi Global Life Solutions Inc
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Hitachi Global Life Solutions Inc
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Abstract

To provide a refrigerator which suppresses lowering of a door due to weight increase according to the increase in the storage amount of food in a door pocket and the increase in the size of the door, and which can improve usability by improving slidability at the opening/closing operation time of the door, the refrigerator including a rotary type opening/closing door.SOLUTION: The refrigerator includes: a storage chamber; a door for opening/closing an opening part of a front surface of the storage chamber; and a hinge part for turn-fixing an upper end part and a lower end part of the door. The hinge part includes: a lower hinge member having a cylindrical hinge shaft; and a door fixing member having a bearing part of the hinge shaft, and provided rotatably with respect to the lower hinge member. The door fixing member includes a door fixing member support part extending in the circumferential direction of the bearing part and toward a back surface side. When closing the door, the lower hinge member and the door fixing member support part come closer to or come into contact with each other, and when rotating or opening the door, the lower hinge member and the door fixing member support part do not come into contact with each other or a contact area is smaller than the closing time of the door.SELECTED DRAWING: Figure 4

Description

本発明は、冷蔵庫に関する。 The present invention relates to a refrigerator.

冷蔵庫に備えられた貯蔵室の開口部を開閉する扉の開閉方式の一つに、扉を上下方向から挟み込んだピンを中心に回動させて扉の開閉を行うヒンジ式がある。ヒンジ式の扉は、扉の上部と下部にそれぞれ上ヒンジと下ヒンジが設けられている。また、下ヒンジには、扉が所定以上に開かないように規制するストッパが設けられている。ヒンジ式の扉は、比較的大きい面積を持つものであっても、小さい力で開閉可能であり、近年の冷蔵庫では、主に最上段に位置する冷蔵室に用いられている。 One of the door opening / closing methods for opening / closing the opening of the storage chamber provided in the refrigerator is a hinge type in which the door is opened / closed by rotating around a pin sandwiching the door from the vertical direction. The hinged door is provided with an upper hinge and a lower hinge at the top and bottom of the door, respectively. Further, the lower hinge is provided with a stopper that regulates the door from opening more than a predetermined value. The hinged door can be opened and closed with a small force even if it has a relatively large area, and is mainly used in the refrigerator compartment located at the top of the refrigerator in recent years.

また、近年の冷蔵庫の大容量化に伴い、扉の自身の大型化、扉のポケット部への収納食品量の増加、意匠性向上のため前面パネルのガラス化、等により重量が増加する傾向がある。ヒンジ部材で支持される回転式の扉は、その片側端部を上下のヒンジ部材で保持しているため、扉の重量の増加により下ヒンジ部材は、冷蔵庫本体とのねじ固定部を支点にして、下ヒンジ部材の手前側の先端が下方に傾くように回転することで、扉の上下方向の位置が下がり気味になる虞があるという課題があった。 In addition, with the recent increase in the capacity of refrigerators, the weight tends to increase due to the increase in the size of the door itself, the increase in the amount of food stored in the pocket of the door, and the vitrification of the front panel to improve the design. is there. Since the rotary door supported by the hinge member has one end held by the upper and lower hinge members, the lower hinge member uses the screw fixing portion with the refrigerator body as a fulcrum due to the increase in the weight of the door. There is a problem that the position of the door in the vertical direction may be lowered due to the rotation of the front end of the lower hinge member so as to be tilted downward.

このような課題を解決すべく、従来の冷蔵庫においては、下ヒンジが回転式の扉を支持するポイントを、下ヒンジの回転軸外周近傍のみでなく冷蔵庫本体方向に延長、または増設する部材を設けることで扉の下がりを防止する構造が記載されている(例えば、特許文献1参照)。 In order to solve such a problem, in the conventional refrigerator, a member is provided to extend or extend the point where the lower hinge supports the rotary door not only in the vicinity of the outer periphery of the rotation axis of the lower hinge but also in the direction of the refrigerator body. A structure for preventing the door from lowering is described (see, for example, Patent Document 1).

特開2010−78282号公報Japanese Unexamined Patent Publication No. 2010-78282

しかしながら、上記従来の構成では、延長または増設した部材(特許文献1の図8の第二凸形状44参照)が扉の開閉時に下ヒンジに常に擦れながら回動する。そのため扉の開閉操作が重くなり使い勝手が悪くなりかつ、延長または増設した部材と下ヒンジとの摺動面は摩耗により擦り減るため、次第に扉下がりの防止効果が小さくなるという問題点を有している。 However, in the above-mentioned conventional configuration, the extended or expanded member (see the second convex shape 44 in FIG. 8 of Patent Document 1) rotates while constantly rubbing against the lower hinge when the door is opened and closed. Therefore, there is a problem that the opening / closing operation of the door becomes heavy and the usability becomes poor, and the sliding surface between the extended or added member and the lower hinge is worn away due to wear, so that the effect of preventing the door from falling gradually becomes smaller. There is.

また、上記延長または増設した部材を大きくし摺動面積を広くした場合、扉の開閉操作時に摩擦抵抗が増加し、延長または増設した部材が捩れるて変形したり、破損する虞がある。 Further, when the extended or added member is enlarged to widen the sliding area, the frictional resistance increases during the opening / closing operation of the door, and the extended or added member may be twisted, deformed or damaged.

本発明は、このような事情に鑑みてなされたものであり、回転式の開閉扉を備えた冷蔵庫において、扉ポケットへの食品の収納量の増加や、扉の大型化に伴う重量増加による扉下がりを抑制するとともに、扉の開閉操作時の摺動性を良くして使い勝手を向上させた冷蔵庫を提供することを課題とする。 The present invention has been made in view of such circumstances, and in a refrigerator provided with a rotary opening / closing door, a door due to an increase in the amount of food stored in a door pocket and an increase in weight due to an increase in the size of the door. It is an object of the present invention to provide a refrigerator which suppresses lowering and improves usability by improving the slidability when opening and closing the door.

上記課題を解決するために、本発明は、貯蔵室と、前記貯蔵室の前面の開口部を開閉する扉と、前記扉の上端部及び下端部を回動固定するヒンジ部と、備え、前記ヒンジ部は、円筒状のヒンジ軸を有する下ヒンジ部材と、前記ヒンジ軸の軸受部を有し前記下ヒンジ部材に対して回動可能に設けられた扉固定部材と、を備えた冷蔵庫において、前記扉固定部材は、前記軸受部の円周方向で且つ背面側に向かって延出する扉固定部材支持部を有し、前記扉の閉鎖時に、前記下ヒンジ部材と前記扉固定部材支持部とが近接または当接し、前記扉の回動時若しくは開放時に、前記下ヒンジ部材と前記扉固定部材支持部とが当接しない又は前記扉の閉鎖時よりも接触面積が小さい冷蔵庫とした。 In order to solve the above problems, the present invention includes a storage chamber, a door that opens and closes an opening on the front surface of the storage chamber, and a hinge portion that rotates and fixes the upper end and the lower end of the door. The hinge portion is a refrigerator provided with a lower hinge member having a cylindrical hinge shaft and a door fixing member having a bearing portion of the hinge shaft and rotatably provided with respect to the lower hinge member. The door fixing member has a door fixing member support portion that extends in the circumferential direction of the bearing portion and toward the back surface side, and when the door is closed, the lower hinge member and the door fixing member support portion The lower hinge member and the door fixing member support portion do not come into contact with each other when the door is rotated or opened, or the contact area is smaller than that when the door is closed.

本発明によれば、回転式の開閉扉を備えた冷蔵庫において、扉ポケットへの食品の収納量の増加や、扉の大型化に伴う重量増加による扉下がりを抑制するとともに、扉の開閉操作時の摺動性を良くして使い勝手を向上させた冷蔵庫を提供できる。 According to the present invention, in a refrigerator provided with a rotary opening / closing door, an increase in the amount of food stored in the door pocket and a lowering of the door due to an increase in weight due to an increase in the size of the door are suppressed, and when the door is opened / closed. It is possible to provide a refrigerator with improved slidability and improved usability.

本発明の実施形態に係る冷蔵庫の正面図である。It is a front view of the refrigerator which concerns on embodiment of this invention. 上記実施形態に係る冷蔵庫の冷蔵室右扉の下ヒンジの構造を示す図である。It is a figure which shows the structure of the lower hinge of the refrigerating room right door of the refrigerator which concerns on the said embodiment. 上記実施形態に係る冷蔵庫の冷蔵室右扉の扉閉時の下ヒンジの構造を示す図である。It is a figure which shows the structure of the lower hinge at the time of closing the right door of the refrigerating room of the refrigerator which concerns on the said embodiment. (a)は上記実施形態に係る冷蔵庫の冷蔵室右扉の扉閉時の下ヒンジの構造を示す図であり、(b)は上記実施形態に係る冷蔵庫の冷蔵室右扉の扉回動時の下ヒンジの構造を示す図であり、(c)は上記実施形態に係る冷蔵庫の冷蔵室右扉の扉開時の下ヒンジの構造を示す図である。(A) is a diagram showing the structure of the lower hinge when the door of the refrigerator compartment right door according to the above embodiment is closed, and (b) is a diagram showing the structure of the lower hinge when the door of the refrigerator refrigerator compartment right door according to the above embodiment is rotated. It is a figure which shows the structure of the lower hinge, (c) is the figure which shows the structure of the lower hinge when the door of the right door of the refrigerating room of the refrigerator which concerns on the said embodiment is opened. 上記実施形態に係る冷蔵庫の扉固定部材93の下面図である。It is a bottom view of the door fixing member 93 of the refrigerator which concerns on the said embodiment. 上記実施形態に係る冷蔵庫の下ヒンジ部材91の上面図である。It is a top view of the lower hinge member 91 of the refrigerator which concerns on the said embodiment. 図1のA−A断面図である。FIG. 1 is a sectional view taken along the line AA of FIG.

以下、本発明を実施するための形態(本実施形態)を説明する。ただし、本実施形態は、以下の内容に何ら制限されず、本発明の要旨を損なわない範囲内で任意に変更して実施可能である。 Hereinafter, embodiments for carrying out the present invention (the present embodiment) will be described. However, the present embodiment is not limited to the following contents, and can be arbitrarily modified and implemented without impairing the gist of the present invention.

<冷蔵庫の構成>
図1は、本実施形態の冷蔵庫の斜視図である。図1に示す冷蔵庫100は、冷蔵庫本体1の正面に、冷蔵室左扉3と、冷蔵室右扉2と、製氷室扉4と、冷凍室上段扉5と、冷凍室下段扉6と、野菜室扉7とを備えている。
<Construction of refrigerator>
FIG. 1 is a perspective view of the refrigerator of the present embodiment. The refrigerator 100 shown in FIG. 1 has a refrigerator room left door 3, a refrigerator room right door 2, an ice making room door 4, a freezer room upper door 5, a freezer room lower door 6, and vegetables in front of the refrigerator main body 1. It is equipped with a room door 7.

冷蔵室左扉3の上部には上ヒンジ10が設けられ、下部には下ヒンジ11が設けられている。また、冷蔵室右扉2の上部には上ヒンジ8が設けられ、下部には下ヒンジ9が設けられている。 An upper hinge 10 is provided on the upper part of the left door 3 of the refrigerator compartment, and a lower hinge 11 is provided on the lower part. Further, an upper hinge 8 is provided on the upper part of the right door 2 of the refrigerator compartment, and a lower hinge 9 is provided on the lower part.

冷蔵室左扉3は、上ヒンジ10および下ヒンジ11により、紙面手前方向に回転可能になっている。さらに、冷蔵室右扉2は、上ヒンジ8および下ヒンジ9により、紙面手前方向に回転可能になっている。すなわち、冷蔵室左扉3および冷蔵室右扉2は観音開き可能に備えられ、これらと冷蔵庫本体1とにより形成される空間に、冷蔵室(図示しない)が形成されている。 The left door 3 of the refrigerator compartment can be rotated toward the front of the paper by the upper hinge 10 and the lower hinge 11. Further, the refrigerating room right door 2 can be rotated in the front direction of the paper surface by the upper hinge 8 and the lower hinge 9. That is, the refrigerating room left door 3 and the refrigerating room right door 2 are provided so that they can be opened by double doors, and a refrigerating room (not shown) is formed in the space formed by these and the refrigerator main body 1.

なお、製氷室扉4、冷凍室上段扉5、冷凍室下段扉6、および野菜室扉7は紙面手前方向に引き出し可能になっている。そして、これらと冷蔵庫本体1のキャビネットとにより形成される空間に、それぞれ、冷凍室上段、冷凍室下段および野菜室(いずれも図示しない)が形成され、これら貯蔵室は仕切り部材1aにより区画されている。キャビネットは、内箱と外箱とを組み合わせたものであり、その間に断熱部材が挟まれ、断熱箱体を構成している。 The ice making room door 4, the freezing room upper door 5, the freezing room lower door 6, and the vegetable room door 7 can be pulled out toward the front of the paper. Then, in the space formed by these and the cabinet of the refrigerator main body 1, the upper freezer compartment, the lower freezer compartment and the vegetable compartment (none of which are shown) are formed, respectively, and these storage chambers are partitioned by the partition member 1a. There is. The cabinet is a combination of an inner box and an outer box, and a heat insulating member is sandwiched between them to form a heat insulating box body.

本実施形態では、下ヒンジ9,11のうち、下ヒンジ9の構造を例に採り詳しく説明する。 In the present embodiment, among the lower hinges 9 and 11, the structure of the lower hinge 9 will be taken as an example and described in detail.

<下ヒンジの構造>
図2は、冷蔵室右扉2の下ヒンジ9の構造を示す分解斜視図であり、冷蔵室右扉2の右側上方から見た図である。図3は、冷蔵室右扉2の扉閉時の下ヒンジ9の構造を示す図であり、冷蔵室右扉2の右側底面から見た斜視図である。図4は、図1のA−A断面図であり、冷蔵室右扉2を閉じた状態を(a)、開放中または閉鎖中の状態を(b)、開放した状態を図4(c)でそ、れぞれ冷蔵室右扉2の下方に設けられる下ヒンジ部材91と扉固定部材93の動作時の位置関係を示す。
<Structure of lower hinge>
FIG. 2 is an exploded perspective view showing the structure of the lower hinge 9 of the refrigerating room right door 2, and is a view seen from the upper right side of the refrigerating room right door 2. FIG. 3 is a view showing the structure of the lower hinge 9 when the right door 2 of the refrigerating room is closed, and is a perspective view seen from the bottom right side of the right door 2 of the refrigerating room. FIG. 4 is a cross-sectional view taken along the line AA of FIG. 1, in which the right door 2 of the refrigerator compartment is closed (a), opened or closed (b), and opened (c). The positional relationship between the lower hinge member 91 and the door fixing member 93 provided below the right door 2 of the refrigerator compartment during operation is shown.

図2乃至4に示すように、下ヒンジ9(ヒンジ部材)は、冷蔵室右扉2の下部を冷蔵庫本体1に枢設する。下ヒンジ9は、冷蔵庫本体1に対して開閉自在に回動させるヒンジ部材である。下ヒンジ9は、冷蔵庫本体1側に固定される下ヒンジ部材91(第1ヒンジ部材)と、冷蔵庫100の冷蔵室右扉2側に固定されるストッパ部材92(第2ヒンジ部材)と、下ヒンジ部材91とストッパ部材92とが相対的に回動する際の回動中心となる下ヒンジ軸90(ピボット軸)と、を有する。 As shown in FIGS. 2 to 4, in the lower hinge 9 (hinge member), the lower part of the right door 2 of the refrigerator compartment is pivotally installed in the refrigerator main body 1. The lower hinge 9 is a hinge member that can be opened and closed with respect to the refrigerator body 1. The lower hinge 9 includes a lower hinge member 91 (first hinge member) fixed to the refrigerator body 1 side, a stopper member 92 (second hinge member) fixed to the refrigerator 100 right door 2 side of the refrigerator compartment, and a lower hinge member 92. It has a lower hinge shaft 90 (pivot shaft) which is a rotation center when the hinge member 91 and the stopper member 92 rotate relative to each other.

ストッパ部材92は、回動中心の外周側に回動を規制するストッパ部922(規制部)を具備する。また、下ヒンジ部材91は、ストッパ部材92のストッパ部922が当接するストッパ当接部913(当接部)を具備する。 The stopper member 92 includes a stopper portion 922 (regulating portion) that regulates rotation on the outer peripheral side of the center of rotation. Further, the lower hinge member 91 includes a stopper contact portion 913 (contact portion) with which the stopper portion 922 of the stopper member 92 contacts.

このように、下ヒンジ9は、冷蔵庫本体1のキャビネットに固定され、冷蔵室右扉2を回動自在に支持する下ヒンジ軸90(ピボット軸)を板面上に有し、かつ、下ヒンジ軸90が備えられた板面の側面にストッパ当接部913を有する下ヒンジ部材91(第1ヒンジ部材)と、冷蔵室右扉2の底部に固定され、扉開時に、下ヒンジ部材91のストッパ当接部913に当接するストッパ部材92(第2ヒンジ部材)と、ストッパ部材92にねじ94により取り付けられ、扉全閉時に、下ヒンジ部材91の係合フック914に係合して冷蔵室右扉2を冷蔵庫本体1に固定する扉固定部材93(第2ヒンジ部材)と、を備える。 In this way, the lower hinge 9 is fixed to the cabinet of the refrigerator main body 1, has a lower hinge shaft 90 (pivot shaft) that rotatably supports the right door 2 of the refrigerating chamber, and has a lower hinge on the plate surface. A lower hinge member 91 (first hinge member) having a stopper contact portion 913 on the side surface of the plate surface provided with the shaft 90 and a lower hinge member 91 fixed to the bottom of the refrigerating chamber right door 2 when the door is opened. The stopper member 92 (second hinge member) that contacts the stopper contact portion 913 and the stopper member 92 are attached by screws 94, and when the door is fully closed, they engage with the engagement hook 914 of the lower hinge member 91 to cool the room. A door fixing member 93 (second hinge member) for fixing the right door 2 to the refrigerator main body 1 is provided.

冷蔵室右扉2は、底面部21に、ストッパ部材92を嵌合させて収容するストッパ部材収容部22と、扉固定部材93の突起(図示せず)が挿入される孔23(図示せず)と、底面部21の左右方向に沿って取っ手である溝部24と、冷蔵室右扉2の閉時にキャビネットに当接するマグネットを収容するマグネット収容部25と、がそれぞれ形成されている。 The right door 2 of the refrigerating chamber has a stopper member accommodating portion 22 in which the stopper member 92 is fitted and accommodated in the bottom surface portion 21, and a hole 23 (not shown) into which a protrusion (not shown) of the door fixing member 93 is inserted. ), A groove 24 that is a handle along the left-right direction of the bottom surface 21, and a magnet accommodating portion 25 that accommodates a magnet that comes into contact with the cabinet when the right door 2 of the refrigerator compartment is closed.

ストッパ部材収容部22は、底面部21から冷蔵室右扉2の内方(上方)に形成された凹部であり、後記するストッパ部材92の取付部921の外周面が隙間なく嵌合される。ストッパ部材収容部22には、扉固定部材93の軸受931を嵌挿する開口部(図示省略)と、組み合わされたストッパ部材92および扉固定部材93をねじ94により締結するねじ穴(図示省略)と、が形成されている。 The stopper member accommodating portion 22 is a recess formed inward (upper) of the refrigerating chamber right door 2 from the bottom surface portion 21, and the outer peripheral surface of the mounting portion 921 of the stopper member 92, which will be described later, is fitted without a gap. The stopper member accommodating portion 22 has an opening (not shown) for fitting and inserting the bearing 931 of the door fixing member 93, and a screw hole (not shown) for fastening the combined stopper member 92 and the door fixing member 93 with screws 94 (not shown). And are formed.

扉固定部材93には、ストッパ部材92のストッパ部922を覆うストッパ隠し935が備えられる。この構造により、扉固定部材93を黒色の樹脂で成形することで、冷蔵庫100を正面から見た場合、冷蔵庫100全体の色調に統一感をもたせることができ、外観上優れたものとなる。なぜなら冷蔵室扉と製氷室扉および急速冷凍室扉の間は光が当たりづらく影になりやすいのに対してストッパ部材92は明色の金属製のためストッパ部材92のストッパ部922が目立ってしまうのを、黒色のストッパ隠し935が隠すからである。このことにより、冷蔵庫100全体の外観が良好に保たれる。 The door fixing member 93 is provided with a stopper hiding 935 that covers the stopper portion 922 of the stopper member 92. With this structure, by molding the door fixing member 93 with black resin, when the refrigerator 100 is viewed from the front, the color tone of the entire refrigerator 100 can be unified, and the appearance is excellent. This is because the light is hard to hit between the refrigerating room door, the ice making room door, and the quick freezing room door, and shadows are likely to occur. On the other hand, since the stopper member 92 is made of light-colored metal, the stopper portion 922 of the stopper member 92 stands out. This is because the black stopper hiding 935 hides it. As a result, the appearance of the entire refrigerator 100 is kept good.

<下ヒンジ部材91>
下ヒンジ部材91は、厚みのある金属製の板材を曲げ加工して形成される。下ヒンジ部材91は、冷蔵庫本体1のキャビネット及び冷蔵室とその下方に隣接した貯蔵室との間を区画する仕切り部材1aへ下ヒンジ部材91を取付けるための取付部911を備える。取付部911の右側、中央部、左側には、横長のねじ貫通孔911a,911b,911cがそれぞれ開口している。これらねじ貫通孔911a,911b,911cは図示しないねじが貫通する。
<Lower hinge member 91>
The lower hinge member 91 is formed by bending a thick metal plate material. The lower hinge member 91 includes an attachment portion 911 for attaching the lower hinge member 91 to the partition member 1a that partitions the cabinet of the refrigerator body 1 and the refrigerator compartment and the storage chamber adjacent thereto. Horizontally long screw through holes 911a, 911b, and 911c are opened on the right side, the center part, and the left side of the mounting portion 911, respectively. Screws (not shown) penetrate through these screw through holes 911a, 911b, and 911c.

取付部911の右側の上端部分から板状の軸支持部912が前方に垂直に折り曲げられて突出している。軸支持部912は、曲げ剛性を高めるために、断面視で波状の凹凸部912aが形成されている。軸支持部912の右側は、前方に行くほど狭くなり、先端部912bは半円形を構成し、この半円形の先頭部912bの中心部からは下ヒンジ軸90が上方に突出している。 A plate-shaped shaft support portion 912 is vertically bent forward and protrudes from the upper end portion on the right side of the mounting portion 911. The shaft support portion 912 is formed with a wavy uneven portion 912a in a cross-sectional view in order to increase the bending rigidity. The right side of the shaft support portion 912 becomes narrower toward the front, the tip portion 912b forms a semicircle, and the lower hinge shaft 90 projects upward from the center of the semicircular leading portion 912b.

半円形の先頭部912bの右側の側面には、ストッパ部材92のストッパ部922が当接するストッパ当接部913が形成されている。ここで、ストッパ当接部913は、指等の挟み込みを未然に防止する観点から、ストッパ機能が保たれる最小限の段差に形成することが好ましい。 A stopper contact portion 913 with which the stopper portion 922 of the stopper member 92 abuts is formed on the right side surface of the semicircular head portion 912b. Here, the stopper contact portion 913 is preferably formed at the minimum step in which the stopper function is maintained, from the viewpoint of preventing the fingers or the like from being pinched.

ストッパ部材92のストッパ部922は、冷蔵室右扉2の開限界に近付くと、ストッパ当接部913に突き当たって停止する。 When the stopper portion 922 of the stopper member 92 approaches the opening limit of the refrigerating chamber right door 2, it abuts on the stopper contact portion 913 and stops.

また、軸支持部912の中央部からは、係合フック914が左前方に突出している。この係合フック914は、後記する扉固定部材93の係合溝934に係合する。係合フック914は、先端部がやや左側に折曲されフック形状を成している。 Further, the engaging hook 914 projects to the left front from the central portion of the shaft support portion 912. The engaging hook 914 engages with the engaging groove 934 of the door fixing member 93 described later. The engaging hook 914 has a hook shape with its tip slightly bent to the left.

係合フック914と係合溝934とはクローザの役目を果たす。冷蔵室右扉2を閉じる際、係合フック914と係合溝934とが接触した後にさらに閉じる方向に力を加えると、係合フック914が係合溝934に有する凸部を乗り越え、冷蔵室右扉2を引き込む力が加わり、冷蔵室右扉2と冷蔵庫本体1との間に閉め忘れの小さな空間(所謂半ドア)が生じることを防ぐ。 The engaging hook 914 and the engaging groove 934 serve as a closer. When closing the right door 2 of the refrigerating chamber, if a force is applied in the closing direction after the engaging hook 914 and the engaging groove 934 come into contact with each other, the engaging hook 914 gets over the convex portion of the engaging groove 934 and gets over the convex portion of the engaging groove 934, and the refrigerating chamber A force for pulling in the right door 2 is applied to prevent a small space (so-called half-door) that is forgotten to be closed from being created between the right door 2 of the refrigerator compartment and the refrigerator body 1.

<ストッパ部材92>
ストッパ部材92は、厚みのある金属製の板材を曲げ加工して形成され、全ての表面に下ヒンジ部材91と同様の塗装またはメッキがされている。ストッパ部材92は、冷蔵室右扉2の底面部21のストッパ部材収容部22へストッパ部材92を取付けるための取付部921を備える。取付部921の右側には、扉固定部材93から突出する軸受931を貫通する円形貫通孔921aと、扉固定部材93と共締めするねじ94を貫通するねじ貫通孔921bとがそれぞれ開口している。
<Stopper member 92>
The stopper member 92 is formed by bending a thick metal plate material, and all surfaces are coated or plated in the same manner as the lower hinge member 91. The stopper member 92 includes a mounting portion 921 for mounting the stopper member 92 to the stopper member accommodating portion 22 on the bottom surface portion 21 of the refrigerating chamber right door 2. On the right side of the mounting portion 921, a circular through hole 921a penetrating the bearing 931 protruding from the door fixing member 93 and a screw through hole 921b penetrating the screw 94 to be fastened together with the door fixing member 93 are opened. ..

取付部921の前面の端部分から板状のストッパ部922が下方に垂直に折り曲げられている。 A plate-shaped stopper portion 922 is vertically bent downward from the front end portion of the mounting portion 921.

ストッパ部922は、扉開時、ストッパ当接部913に当接する。ストッパ部922がストッパ当接部913に当たり、冷蔵室右扉2が必要以上に回動しないようにすることができる。 The stopper portion 922 comes into contact with the stopper contact portion 913 when the door is opened. The stopper portion 922 hits the stopper contact portion 913, and the refrigerating chamber right door 2 can be prevented from rotating more than necessary.

<扉固定部材93>
扉固定部材93は、樹脂製であり、適度な弾性力を有する。扉固定部材93は、ストッパ部材92の取付部921の底面に組み合わされて、ストッパ部材92と見かけ上一体化される。
<Door fixing member 93>
The door fixing member 93 is made of resin and has an appropriate elastic force. The door fixing member 93 is combined with the bottom surface of the mounting portion 921 of the stopper member 92 and is apparently integrated with the stopper member 92.

扉固定部材93の右側には、下ヒンジ部材91から突出する下ヒンジ軸90の軸受931が上方に突設されている。この軸受931は、ストッパ部材92の円形貫通孔921aに挿入される。 On the right side of the door fixing member 93, a bearing 931 of the lower hinge shaft 90 protruding from the lower hinge member 91 is projected upward. The bearing 931 is inserted into the circular through hole 921a of the stopper member 92.

扉固定部材93の中央部には、ストッパ部材92のねじ貫通孔921bに対応する位置に、ストッパ部材92と共締めするねじ94を貫通するねじ貫通孔932が開口している。扉固定部材93の中央部左側には、ストッパ部材92と組み合わされた扉固定部材93を冷蔵室右扉2の底面部21に開口された孔(図示省略)に挿通する突起933が突出している。 At the center of the door fixing member 93, a screw through hole 932 that penetrates the screw 94 that is fastened together with the stopper member 92 is opened at a position corresponding to the screw through hole 921b of the stopper member 92. On the left side of the central portion of the door fixing member 93, a protrusion 933 for inserting the door fixing member 93 combined with the stopper member 92 into a hole (not shown) opened in the bottom surface portion 21 of the right door 2 of the refrigerating chamber projects. ..

扉固定部材93の左側には、屈曲した係合溝934が設けられ、冷蔵室右扉2を閉めた状態で、係合フック914が係合溝934と係合し、冷蔵室右扉2が、使用者の意図せず開放状態になることを防止する。 A bent engaging groove 934 is provided on the left side of the door fixing member 93, and with the refrigerating chamber right door 2 closed, the engaging hook 914 engages with the engaging groove 934, and the refrigerating chamber right door 2 is engaged. , Prevents the user from unintentionally opening the door.

次に、冷蔵室右扉2の下ヒンジ9の組み立てについて説明する。 Next, the assembly of the lower hinge 9 of the refrigerating room right door 2 will be described.

図2に示すように、冷蔵室右扉2の底面部21のストッパ部材収容部22に、下方からストッパ部材92と扉固定部材93と下ヒンジ部材91とをこの順で重ねて取付ける。この場合、ストッパ部材92の取付部921の円形貫通孔921aに扉固定部材93の軸受931を挿通して重ね合わせる。ストッパ部材92の取付部921の円形貫通孔921aに扉固定部材93の軸受931が隙間なく挿通されること、およびストッパ部材92の取付部921とストッパ部材92との段部に扉固定部材93が密着することで、ストッパ部材92と扉固定部材93とは一体化される。その上で、ストッパ部材92の取付部921のねじ貫通孔921bと扉固定部材93のねじ貫通孔932とを位置合せし、ねじ貫通孔921b,932にねじ94を貫通させてねじ止めする。 As shown in FIG. 2, the stopper member 92, the door fixing member 93, and the lower hinge member 91 are mounted on the stopper member accommodating portion 22 of the bottom surface portion 21 of the refrigerating chamber right door 2 in this order from below. In this case, the bearing 931 of the door fixing member 93 is inserted into the circular through hole 921a of the mounting portion 921 of the stopper member 92 and overlapped. The bearing 931 of the door fixing member 93 is inserted into the circular through hole 921a of the mounting portion 921 of the stopper member 92 without a gap, and the door fixing member 93 is inserted in the step portion between the mounting portion 921 of the stopper member 92 and the stopper member 92. The stopper member 92 and the door fixing member 93 are integrated by being in close contact with each other. Then, the screw through hole 921b of the mounting portion 921 of the stopper member 92 and the screw through hole 932 of the door fixing member 93 are aligned, and the screw 94 is passed through the screw through holes 921b and 932 and screwed.

ここで、冷蔵室右扉2の底面部21のストッパ部材収容部22の凹部の外周形状は、ストッパ部材92の取付部921の外周形状と略等しい。このため、ストッパ部材92の取付部921は、冷蔵室右扉2の底面部21のストッパ部材収容部22に隙間なく収容される。さらに、ストッパ部材92に組み合わされた扉固定部材93の突起933は、冷蔵室右扉2の底面部21に開口された孔(図示省略)に挿通される。このようにして、ストッパ部材92および扉固定部材93は、冷蔵室右扉2の底面部21のストッパ部材収容部22に確実に取り付けられる。特に、ストッパ部材92および扉固定部材93は、冷蔵室右扉2の回動方向の力に対しては、強固に取り付けられている。また扉固定部材93には、底面部21のストッパ部材収容部22の壁面に当接するように、凸形状936が設けられている。凸形状936はストッパ部922の、ストッパ当接部913との当接面に対して投影面上に位置するため、ストッパ部922がストッパ当接部913に当たり扉の回転を止める際に、扉固定部材93は、ストッパ当接部913からストッパ部922が受ける力を、曲げ応力でなく圧縮応力のみを受けながら、ストッパ部材収容部22の壁面にまで伝える。これにより、扉固定部材93の変形を防ぐことができる。 Here, the outer peripheral shape of the concave portion of the stopper member accommodating portion 22 of the bottom surface portion 21 of the refrigerating chamber right door 2 is substantially equal to the outer peripheral shape of the mounting portion 921 of the stopper member 92. Therefore, the mounting portion 921 of the stopper member 92 is accommodated in the stopper member accommodating portion 22 of the bottom surface portion 21 of the refrigerating chamber right door 2 without a gap. Further, the protrusion 933 of the door fixing member 93 combined with the stopper member 92 is inserted into a hole (not shown) opened in the bottom surface 21 of the refrigerating chamber right door 2. In this way, the stopper member 92 and the door fixing member 93 are securely attached to the stopper member accommodating portion 22 of the bottom surface portion 21 of the refrigerating chamber right door 2. In particular, the stopper member 92 and the door fixing member 93 are firmly attached to the force in the rotation direction of the refrigerating chamber right door 2. Further, the door fixing member 93 is provided with a convex shape 936 so as to come into contact with the wall surface of the stopper member accommodating portion 22 of the bottom surface portion 21. Since the convex shape 936 is located on the projection surface of the stopper portion 922 with respect to the contact surface with the stopper contact portion 913, the door is fixed when the stopper portion 922 hits the stopper contact portion 913 and stops the rotation of the door. The member 93 transmits the force received from the stopper contact portion 913 to the stopper portion 922 to the wall surface of the stopper member accommodating portion 22 while receiving only the compressive stress instead of the bending stress. This makes it possible to prevent the door fixing member 93 from being deformed.

一方、図2に示すように、下ヒンジ部材91は、冷蔵庫本体1のキャビネットへねじ止めにより冷蔵庫本体1に固定される。このねじ止めは、下ヒンジ部材91の取付部911のねじ貫通孔911a,911b,911cへの3箇所のねじ止めである。なお、下ヒンジ部材91は、下ヒンジ部材91に備えられた90を扉固定部材93の軸受931を挿通し、下ヒンジ部材91とストッパ部材92と扉固定部材93とが一体となった状態で、冷蔵庫本体1のキャビネットへねじ止め固定してもよいし、あるいは先に下ヒンジ部材91を冷蔵庫本体1のキャビネットへねじ止め固定してから、冷蔵室右扉2に取り付けたストッパ部材92および扉固定部材93の軸受931に、下ヒンジ部材91の下ヒンジ軸90を挿通する組当て方法のいずれでもよい。なお、下ヒンジ軸90と軸受931との間に、潤滑性を保つためのグリスを塗付する。シリコングリス(白色)を塗付すると目立ちやすいため、オレフィン系グリス(乳白色)を用いることが好ましい。 On the other hand, as shown in FIG. 2, the lower hinge member 91 is fixed to the refrigerator main body 1 by screwing to the cabinet of the refrigerator main body 1. This screwing is screwing at three places to the screw through holes 911a, 911b, and 911c of the mounting portion 911 of the lower hinge member 91. In the lower hinge member 91, the 90 provided in the lower hinge member 91 is inserted through the bearing 931 of the door fixing member 93, and the lower hinge member 91, the stopper member 92, and the door fixing member 93 are integrated. , The lower hinge member 91 may be screwed and fixed to the cabinet of the refrigerator body 1, or the stopper member 92 and the door attached to the right door 2 of the refrigerating chamber after the lower hinge member 91 is screwed and fixed to the cabinet of the refrigerator body 1 first. Any assembling method may be used in which the lower hinge shaft 90 of the lower hinge member 91 is inserted into the bearing 931 of the fixing member 93. In addition, grease for maintaining lubricity is applied between the lower hinge shaft 90 and the bearing 931. It is preferable to use olefin grease (milky white) because it is easily noticeable when silicone grease (white) is applied.

作業者は、続いて上ヒンジ10(図1参照)を取り付けることにより、冷蔵室右扉2が回動自在に取り付けられる。作業者は、冷蔵室右扉2と同様なヒンジ構造を有する冷蔵室左扉3も同様にして取り付ける。 The operator subsequently attaches the upper hinge 10 (see FIG. 1) so that the refrigerating chamber right door 2 can be rotatably attached. The operator also attaches the refrigerating room left door 3 having the same hinge structure as the refrigerating room right door 2.

次に、下ヒンジ9の機能について説明する。 Next, the function of the lower hinge 9 will be described.

図3に示すように、冷蔵室右扉2は、扉閉時には、下ヒンジ部材91の係合フック914が扉固定部材93の係合溝934と係合し、冷蔵室右扉2が開放状態になることを防止する。 As shown in FIG. 3, when the door of the refrigerating chamber right door 2 is closed, the engaging hook 914 of the lower hinge member 91 engages with the engaging groove 934 of the door fixing member 93, and the refrigerating chamber right door 2 is in an open state. Prevent becoming.

このとき、ストッパ部材92のストッパ部922は、冷蔵庫本体1の正面に位置することになる。しかし、ストッパ部922は、扉固定部材93のストッパ隠し935によって覆われるので、ストッパ部材92が目立つことはない。このことにより、冷蔵庫100全体の外観が良好に保たれる。 At this time, the stopper portion 922 of the stopper member 92 is located in front of the refrigerator main body 1. However, since the stopper portion 922 is covered with the stopper hiding 935 of the door fixing member 93, the stopper member 92 is not conspicuous. As a result, the appearance of the entire refrigerator 100 is kept good.

冷蔵室右扉2の溝部24等を取っ手とし、所定以上の力で冷蔵室右扉2を右側手前に開くと、樹脂からなる扉固定部材93の係合溝934は、外方に撓って下ヒンジ部材91の係合フック914から開放される。なお、電動冷蔵室ドアを備える冷蔵庫である場合、操作部にタッチすることで所望の冷蔵室扉を自動で開くことができる。 When the refrigerating room right door 2 is opened toward the right side with a handle of the groove portion 24 or the like of the refrigerating room right door 2 and a predetermined force or more, the engaging groove 934 of the door fixing member 93 made of resin bends outward. It is released from the engaging hook 914 of the lower hinge member 91. In the case of a refrigerator provided with an electric refrigerator door, the desired refrigerator door can be automatically opened by touching the operation unit.

冷蔵室右扉2は、上ヒンジ10(図1参照)および下ヒンジ9(図1参照)により、最大扉開の範囲内で所望の角度まで回転可能である。 The refrigerating chamber right door 2 can be rotated to a desired angle within the maximum door opening range by the upper hinge 10 (see FIG. 1) and the lower hinge 9 (see FIG. 1).

図4に示すように、冷蔵室右扉2は、最大開放位置まで開かれた場合、ストッパ部922の先端は、ストッパ当接部913に突き当たり、冷蔵室右扉2のそれ以上の回動を規制する。 As shown in FIG. 4, when the refrigerating chamber right door 2 is opened to the maximum open position, the tip of the stopper portion 922 abuts on the stopper contact portion 913 and further rotation of the refrigerating chamber right door 2 is performed. regulate.

以上説明したように、本実施形態の冷蔵庫100は、冷蔵庫本体1側に固定される下ヒンジ部材91と、冷蔵庫100の冷蔵室右扉2側に固定されるストッパ部材92と、下ヒンジ部材91とストッパ部材92とが相対的に回動する際の回動中心となる下ヒンジ軸90と、扉全閉時に、冷蔵室右扉2を冷蔵庫本体1に固定する扉固定部材93と、を備える。ストッパ部材92は、回動中心の外周側に回動を規制するストッパ部922を具備する。また、下ヒンジ部材91は、ストッパ部材92が当接するストッパ当接部913を具備する。 As described above, in the refrigerator 100 of the present embodiment, the lower hinge member 91 fixed to the refrigerator body 1 side, the stopper member 92 fixed to the refrigerator room right door 2 side of the refrigerator 100, and the lower hinge member 91 A lower hinge shaft 90 that serves as a center of rotation when the stopper member 92 and the stopper member 92 rotate relative to each other, and a door fixing member 93 that fixes the refrigerator compartment right door 2 to the refrigerator body 1 when the door is fully closed. .. The stopper member 92 includes a stopper portion 922 that regulates rotation on the outer peripheral side of the center of rotation. Further, the lower hinge member 91 includes a stopper contact portion 913 with which the stopper member 92 comes into contact.

<扉固定部材支持部937(扉下がり抑制)>
冷蔵室右扉2の開動作時および閉動作時において、図4、図5、図6、図7を用いて説明する。図4(a)〜図4(c)は、冷蔵室右扉2の開閉動作時における扉固定部材93と下ヒンジ部材91との位置関係を示した図であり、夫々、図4(a)は冷蔵室右扉2を完全に閉じた状態を、図4(b)は冷蔵室右扉2の回動時の状態を、図4(c)は冷蔵室右扉2を最大に開放させた状態を示す。図5は、冷蔵室右扉2の扉固定部材93の下面側(即ち、下ヒンジ部材91の上面側と対向する面)を示す図である。図6は、下ヒンジ部材91を上面側(即ち、扉固定部材93の下面側と対向する面)を示す図である。図7は図1のA−A断面図であり、冷蔵室右扉2が下ヒンジ部材91や扉固定部材93等を介して冷蔵庫本体1に固定している状態を示す。
<Door fixing member support part 937 (door lowering suppression)>
This will be described with reference to FIGS. 4, 5, 6 and 7 when the right door 2 of the refrigerator compartment is opened and closed. 4 (a) to 4 (c) are views showing the positional relationship between the door fixing member 93 and the lower hinge member 91 during the opening / closing operation of the refrigerating chamber right door 2, respectively. 4 (b) shows the state in which the refrigerating room right door 2 is completely closed, FIG. 4 (b) shows the state in which the refrigerating room right door 2 is rotated, and FIG. Indicates the state. FIG. 5 is a view showing the lower surface side of the door fixing member 93 of the refrigerating room right door 2 (that is, the surface facing the upper surface side of the lower hinge member 91). FIG. 6 is a view showing the lower hinge member 91 on the upper surface side (that is, the surface facing the lower surface side of the door fixing member 93). FIG. 7 is a cross-sectional view taken along the line AA of FIG. 1, showing a state in which the refrigerating chamber right door 2 is fixed to the refrigerator body 1 via a lower hinge member 91, a door fixing member 93, and the like.

扉固定部材93には、上下に隣接して設けられた下ヒンジ部材91と摺動する面を有している。第一の摺動面として、下ヒンジ軸90の外周近傍に円周状に設けられた摺動面937aを有する。また、第二の摺動面として、固定部材93の冷蔵庫本体方向(背面側)に延伸して設けられた扉固定部材支持部937の底面側、即ち、冷蔵室右扉2の閉時に下ヒンジ部材91と対向する摺動面937bを備える。下ヒンジ部材91の上面側には、冷蔵室右扉2の閉状態時において、扉固定部材93側に有する摺動面937a及び摺動面937bと対向して摺動面915を有する。すなわち、冷蔵室右扉2が閉状態のとき、下ヒンジ部材91側の摺動面915と扉固定部材93側の摺動面937aとが近接するとともに、下ヒンジ部材91側の摺動面915と扉固定部材93(扉固定部材支持部937)側の摺動面937bとが近接する。 The door fixing member 93 has a surface that slides on the lower hinge member 91 provided adjacent to the upper and lower sides. As the first sliding surface, a sliding surface 937a provided in a circumferential shape is provided in the vicinity of the outer periphery of the lower hinge shaft 90. Further, as the second sliding surface, the bottom surface side of the door fixing member support portion 937 provided by extending the fixing member 93 toward the refrigerator body (rear side), that is, the lower hinge when the refrigerating chamber right door 2 is closed. A sliding surface 937b facing the member 91 is provided. The upper surface side of the lower hinge member 91 has a sliding surface 915 facing the sliding surface 937a and the sliding surface 937b on the door fixing member 93 side when the refrigerating chamber right door 2 is closed. That is, when the refrigerating chamber right door 2 is in the closed state, the sliding surface 915 on the lower hinge member 91 side and the sliding surface 937a on the door fixing member 93 side are close to each other, and the sliding surface 915 on the lower hinge member 91 side. And the sliding surface 937b on the door fixing member 93 (door fixing member support portion 937) side are close to each other.

これにより、冷蔵室右扉2が閉状態のとき、冷蔵室右扉2自身の重量やポケット部の食品量により冷蔵室右扉2に負荷がかかると、下ヒンジ部材91付近に鉛直方向の荷重がかかり、取付部911を支点として下ヒンジ部材91の手前側が下方に回転する力が働く。このとき、摺動面915と扉固定部材支持部937の下面側の摺動面937bとが接することで、冷蔵室右扉2を支持する箇所は下ヒンジ軸90の周辺近傍でなく、扉固定部材支持部937を介して冷蔵庫本体1付近に移動する。移動前と比較すると、下ヒンジ軸90から取付部911までの前後方向の距離よりも、扉固定部材支持部937の端部から取付部911までの前後方向の距離を短くして、取付け支点(回転支点)との距離を近くした。 As a result, when the refrigerating room right door 2 is in the closed state, if a load is applied to the refrigerating room right door 2 due to the weight of the refrigerating room right door 2 itself or the amount of food in the pocket portion, a vertical load is applied to the vicinity of the lower hinge member 91. Is applied, and a force is applied to rotate the front side of the lower hinge member 91 downward with the mounting portion 911 as a fulcrum. At this time, the sliding surface 915 and the sliding surface 937b on the lower surface side of the door fixing member support portion 937 are in contact with each other, so that the portion supporting the right door 2 of the refrigerator compartment is not near the periphery of the lower hinge shaft 90, but is fixed to the door. It moves to the vicinity of the refrigerator main body 1 via the member support portion 937. Compared to before the movement, the distance in the front-rear direction from the end of the door fixing member support portion 937 to the mounting portion 911 is shorter than the distance in the front-rear direction from the lower hinge shaft 90 to the mounting portion 911, and the mounting fulcrum ( The distance to the rotation fulcrum) was reduced.

以上により、下ヒンジ部材91の先端部が下方向に回転し、冷蔵室右扉2の位置が下がる際の上下方向の変位量を小さくでき、下ヒンジ部材91の変形や、取付部911が固定されるキャビネット及び仕切り部材1aの変形を抑制することができ、冷蔵室右扉2の位置の下がり量を抑制することができ、冷蔵室内からの冷気漏れや外観品質の低下を抑制できる。 As a result, the tip of the lower hinge member 91 rotates downward, the amount of displacement in the vertical direction when the position of the right door 2 of the refrigerating chamber is lowered can be reduced, the lower hinge member 91 is deformed, and the mounting portion 911 is fixed. The deformation of the cabinet and the partition member 1a can be suppressed, the amount of lowering of the position of the right door 2 of the refrigerating chamber can be suppressed, and the leakage of cold air from the refrigerating chamber and the deterioration of the appearance quality can be suppressed.

尚、厳密には、冷蔵室右扉2のポケット部に収納した食品などにより過度の負荷が加えられていない場合には、摺動面937bと摺動面915の間にはわずかな隙間が設けられてもよく、冷蔵室右扉2の開閉の動作の際に、摩擦が発生し難い構造となっている。 Strictly speaking, if an excessive load is not applied due to food stored in the pocket of the right door 2 of the refrigerator compartment, a slight gap is provided between the sliding surface 937b and the sliding surface 915. The structure is such that friction is unlikely to occur when the right door 2 of the refrigerator compartment is opened and closed.

<凹み面916(摺動性向上)>
図4乃至図6に示すとおり、下ヒンジ部材91には摺動面915と隣接して凹み面916が設けられる。これにより、扉固定部材支持部937の動作時、即ち、図4(b)に示すような冷蔵室右扉2の開閉動作中の状態や、図4(c)に示すような冷蔵室右扉2を完全に開放した状態においては、摺動面915と摺動面937bとが接触しない、若しくは、接触する面積を小さくする位置関係とした。
<Recessed surface 916 (improved slidability)>
As shown in FIGS. 4 to 6, the lower hinge member 91 is provided with a recessed surface 916 adjacent to the sliding surface 915. As a result, when the door fixing member support portion 937 is in operation, that is, when the refrigerating chamber right door 2 is being opened and closed as shown in FIG. 4 (b), and the refrigerating chamber right door as shown in FIG. 4 (c) is being opened and closed. In the state where 2 is completely opened, the sliding surface 915 and the sliding surface 937b do not come into contact with each other, or the contact area is reduced.

扉固定部材93の摺動面937bは、冷蔵室右扉2を閉状態から図4(b)のように一定以上開動すると、摺動面915との接触部分は除々に小さくなる。このとき、凹み面916は、扉固定部材支持部937の回転軌跡上に設けられており、下ヒンジ部材91と固定部材93が擦れるのは、冷蔵室右扉2を一定以上閉じたときである。 When the sliding surface 937b of the door fixing member 93 is opened by a certain amount or more as shown in FIG. 4B from the state where the refrigerating chamber right door 2 is closed, the contact portion with the sliding surface 915 gradually becomes smaller. At this time, the recessed surface 916 is provided on the rotation locus of the door fixing member support portion 937, and the lower hinge member 91 and the fixing member 93 rub against each other when the refrigerating chamber right door 2 is closed by a certain amount or more. ..

また、凹み面916から摺動面915にかけて設けられる立ち上がり壁は滑らかな傾斜面である。さらに、該立ち上がり壁は、図4(a)に示すように冷蔵室右扉2の閉鎖時の下ヒンジ部材91の上面視において、扉固定支持部937の延伸方向(冷蔵庫本体1方向)と平行するように設けられる。これにより、図4(c)に示す冷蔵室右扉2の開放状態から閉鎖状態にするとき、まず摺動面937bは凹み面916上を抵抗なく移動した後、傾斜面を乗り上げながら移動して摺動面915との接触面積が次第に増していき、冷蔵室右扉2の閉鎖状態において摺動面937bと摺動面915とが重なり合った位置関係となる。 Further, the rising wall provided from the recessed surface 916 to the sliding surface 915 is a smooth inclined surface. Further, as shown in FIG. 4A, the rising wall is parallel to the extension direction (refrigerator body 1 direction) of the door fixing support portion 937 in the top view of the lower hinge member 91 when the refrigerating room right door 2 is closed. It is provided to do so. As a result, when the refrigerating chamber right door 2 shown in FIG. 4C is changed from the open state to the closed state, the sliding surface 937b first moves on the recessed surface 916 without resistance, and then moves while riding on the inclined surface. The contact area with the sliding surface 915 gradually increases, and the sliding surface 937b and the sliding surface 915 overlap each other in the closed state of the right door 2 of the refrigerator compartment.

また、冷蔵室右扉2の閉じ動作時において、係合溝934が係合フック914を乗り越えた後に、摺動面937bと摺動面915とが完全に重なり合う位置関係とした。これにより、冷蔵室右扉2の閉じ動作時に、摺動面937bと摺動面915との接触面積且つ摩擦抵抗が小さいときに、係合溝934が係合フック914を乗り越えるタイミングとしたので、係合溝934が係合フック914を乗り越えるときの抵抗を減らし、冷蔵室右扉2が半ドア状態になることを抑制する。 Further, in the closing operation of the right door 2 of the refrigerator compartment, the sliding surface 937b and the sliding surface 915 completely overlap each other after the engaging groove 934 gets over the engaging hook 914. As a result, when the contact area between the sliding surface 937b and the sliding surface 915 and the frictional resistance are small during the closing operation of the refrigerating chamber right door 2, the timing is set so that the engaging groove 934 gets over the engaging hook 914. The resistance when the engaging groove 934 gets over the engaging hook 914 is reduced, and the refrigerating chamber right door 2 is suppressed from being in a half-door state.

また、図5に示すとおり、固定部材93の摺動面937bには小孔938が複数設けられている。これにより摺動面937bと下ヒンジ部材91摺動面915の間に、塗布したグリスが保持され、扉開閉に伴いグリスが供給され続けることができ、かつ固定部材93の摺動面937bの摩耗粉が、万が一発生した場合でも、散乱するのを防ぐことができる。 Further, as shown in FIG. 5, a plurality of small holes 938 are provided on the sliding surface 937b of the fixing member 93. As a result, the applied grease is held between the sliding surface 937b and the lower hinge member 91 sliding surface 915, the grease can be continuously supplied as the door is opened and closed, and the sliding surface 937b of the fixing member 93 is worn. Even if the powder is generated, it can be prevented from being scattered.

以上により、冷蔵室右扉2の開閉操作が重くなったり、且つ、摺動面937bが摩耗により擦り減ることと抑制し、冷蔵室右扉2の取付け位置下がりを抑制する効果の長期的に得ることができる。また、副次的な効果として、板状の軸支持部912に凹み面916を成形することは、軸支持部912に波状の凹凸部を成形することと同義であるため、軸支持部912の剛性を上げることにも繋がる。 As a result, the opening / closing operation of the right door 2 of the refrigerator compartment becomes heavy, and the sliding surface 937b is prevented from being worn away due to wear, and the effect of suppressing the lowering of the mounting position of the right door 2 of the refrigerator compartment is obtained in the long term. be able to. Further, as a secondary effect, molding the concave surface 916 on the plate-shaped shaft support portion 912 is synonymous with forming a wavy uneven portion on the shaft support portion 912, and therefore, therefore, the shaft support portion 912 It also leads to increased rigidity.

<収納凹部940(嵌め合い公差)>
扉固定部材93に一体成形で設けられた扉固定部材支持部937は、底面部21に設けられた収納凹部940に収められる。扉固定部材支持部937は、その高さ寸法を厚く形成するほど強度を確保できるが、摺動面937aと摺動面937bとを略同一の平面形状としつつ、摺動面915との間にわずかな隙間を確保することが望ましいことから、下方向に厚みを増したり突出させたりすることは困難である。そこで、底面部21に収納凹部940を設けることで、扉固定部材支持部937の厚みを増して強度を向上できた。また、本実施の形態においては、冷蔵室右扉2の開閉方向に対して、収納凹部940内の側壁940aの投影面上に、扉固定部材支持部937の側面部937cが位置する。従って、冷蔵室右扉2の開閉時、互いに向かい合う側壁940a及び側面部937が当接するように固定したことで、冷蔵室右扉2の開閉動作時に互いにかかる力を伝達させやすくし、応力集中による捩れや変形を抑制できる。
<Storage recess 940 (fitting tolerance)>
The door fixing member support portion 937 provided integrally with the door fixing member 93 is housed in a storage recess 940 provided in the bottom surface portion 21. The strength of the door fixing member support portion 937 can be secured as the height dimension thereof is made thicker, but the sliding surface 937a and the sliding surface 937b have substantially the same planar shape and are between the sliding surface 915. Since it is desirable to secure a small gap, it is difficult to increase the thickness or project downward. Therefore, by providing the storage recess 940 on the bottom surface 21, the thickness of the door fixing member support portion 937 can be increased to improve the strength. Further, in the present embodiment, the side surface portion 937c of the door fixing member support portion 937 is located on the projection surface of the side wall 940a in the storage recess 940 with respect to the opening / closing direction of the refrigerating chamber right door 2. Therefore, when the refrigerating chamber right door 2 is opened and closed, the side walls 940a and the side surface portions 937 facing each other are fixed so as to be in contact with each other. Twisting and deformation can be suppressed.

仮に、この収納凹部940に扉固定部材支持部937を収納しない場合、即ち、扉固定部材支持部937の上面部937eと底面部21とを上下方向に重ねて配置した場合、例えば、冷蔵室右扉2の閉動作時に、摺動面937bと摺動面915とが接触して摩擦抵抗が増すと、底面部21にしっかり固定されていない扉固定部材支持部937は、冷蔵室右扉2の回動に追従できずに捩れや変形する虞がある。 If the door fixing member support portion 937 is not stored in the storage recess 940, that is, if the upper surface portion 937e and the bottom surface portion 21 of the door fixing member support portion 937 are arranged in the vertical direction, for example, the right side of the refrigerator compartment. When the sliding surface 937b and the sliding surface 915 come into contact with each other and the frictional resistance increases during the closing operation of the door 2, the door fixing member support portion 937 that is not firmly fixed to the bottom surface portion 21 is moved to the refrigerating chamber right door 2. There is a risk of twisting or deformation because it cannot follow the rotation.

また、底面部21や扉固定部材93は樹脂成形品であり、その成形時の収縮や変形等によって生じる嵌め合い公差を考慮する必要がある。扉固定部材支持部937を収納凹部940に収納する際、嵌め合い公差によるギャップの調整を容易にするために、扉固定部材支持部937の側面部937cに凸部937dが設けられ、また、上面部937eに段部937fが設けられる。 Further, the bottom surface portion 21 and the door fixing member 93 are resin molded products, and it is necessary to consider the fitting tolerance caused by shrinkage or deformation during molding. When the door fixing member support portion 937 is stored in the storage recess 940, a convex portion 937d is provided on the side surface portion 937c of the door fixing member support portion 937 and the upper surface thereof is provided in order to facilitate the adjustment of the gap due to the fitting tolerance. A step portion 937f is provided on the portion 937e.

凸部937dは下ヒンジ軸90の先端部、即ち、冷蔵庫本体1の近傍側に設けることが望ましい。冷蔵室右扉2の開閉動作時に、側面部937dと収納凹部940とを直ぐに当接できるようにして互いのがた付きを抑制している。 It is desirable that the convex portion 937d is provided at the tip of the lower hinge shaft 90, that is, near the refrigerator body 1. When the right door 2 of the refrigerator compartment is opened and closed, the side surface portion 937d and the storage recess 940 can be brought into immediate contact with each other to prevent rattling from each other.

扉固定部材支持部937の上面部937eには緩やかに傾斜して形成された段部937fを有する。これにより、収納凹部940及び扉固定部材支持部937が変形し、これらの上下方向の隙間が大きくなった場合でも、冷蔵室右扉2にかかる荷重を、扉固定部材支持部937の先端部に設けた段部937fで確実に受けることができ、取付け部911との距離を短くできる。 The upper surface portion 937e of the door fixing member support portion 937 has a stepped portion 937f formed so as to be gently inclined. As a result, even if the storage recess 940 and the door fixing member support portion 937 are deformed and the gap in the vertical direction thereof becomes large, the load applied to the right door 2 of the refrigerator compartment is applied to the tip portion of the door fixing member support portion 937. It can be reliably received by the provided step portion 937f, and the distance from the mounting portion 911 can be shortened.

また、上面部937eは、下ヒンジ軸90側から端部側に向かって複数のリブを形成し、強度を向上している。 Further, the upper surface portion 937e forms a plurality of ribs from the lower hinge shaft 90 side toward the end portion side to improve the strength.

以上、本実施形態について図面を参照しながら説明したが、本実施形態は前記の内容に何ら限定されるものではない。したがって、本発明には、様々な変形例が含まれる。すなわち、前記の実施形態は本発明をわかりやすく説明するために詳細に説明したものであり、必ずしも説明したすべての構成を備えるものに限定されるものではない。 Although the present embodiment has been described above with reference to the drawings, the present embodiment is not limited to the above contents. Therefore, the present invention includes various modifications. That is, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one including all the described configurations.

例えば、冷蔵庫の扉のヒンジ構造として下ヒンジ9を挙げたが、ストッパを有するヒンジであればよく、冷蔵室左扉3の下ヒンジ11など他の扉に適用してもよい。 For example, the lower hinge 9 has been mentioned as the hinge structure of the refrigerator door, but any hinge having a stopper may be used, and the lower hinge 11 may be applied to the lower hinge 11 of the left door 3 of the refrigerator compartment.

また、実施の形態において、冷蔵室右扉2で説明しているがこれに限らず、冷蔵室左扉3に適用可能であり、また、ヒンジによる回転式の扉であればどの貯蔵室の扉にでも適用することが可能である。 Further, in the embodiment, the right door 2 of the refrigerating room is described, but the present invention is not limited to this, and the door of any storage room can be applied to the left door 3 of the refrigerating room, and if it is a rotary door with a hinge. It can also be applied to.

これらの他にも、ある実施形態の構成の一部を他の実施形態の構成に置換することが可能であり、また、ある実施形態の構成に他の実施形態の構成を加えることも可能である。さらには、各実施形態の構成の一部について、他の構成を追加、削除、置換等することもできる。 In addition to these, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. is there. Furthermore, other configurations can be added, deleted, replaced, etc. with respect to a part of the configurations of each embodiment.

例えば、本実施形態では、冷凍庫を備える冷蔵庫への適用例を挙げたが、扉を備える冷蔵庫であれば同様に適用することが可能である。 For example, in the present embodiment, an example of application to a refrigerator provided with a freezer has been given, but the same can be applied to a refrigerator provided with a door.

1 冷蔵庫本体
3 冷蔵室左扉(扉)
2 冷蔵室右扉(扉)
8,10 上ヒンジ
9,11 下ヒンジ(ヒンジ部材)
90 下ヒンジ軸(ピボット軸)
91 下ヒンジ部材(第1ヒンジ部材)
911,921 取付部
912 軸支持部
912b 先頭部
913 ストッパ当接部(当接部)
914 係合フック
915 摺動面
916 凹み面
92 ストッパ部材(第2ヒンジ部材)
922 ストッパ部
93 扉固定部材(第2ヒンジ部材)
931 軸受
934 係合溝
935 ストッパ隠し
936 凸形状(折れ防止)
937 扉固定部材支持部
937a 摺動面(扉固定部材に有する第一の摺動面)
937b 摺動面(扉固定部材に有する第二の摺動面)
937c 側面部
937d 側面凸部
937e 上面部
937f 段部
938 小孔
94 ねじ
940 収納凹部
100 冷蔵庫
1 Refrigerator body 3 Refrigerator room left door (door)
2 Refrigerator room right door (door)
8,10 Upper hinge 9,11 Lower hinge (hinge member)
90 Lower hinge shaft (pivot shaft)
91 Lower hinge member (first hinge member)
911, 921 Mounting part 912 Shaft support part 912b Head part 913 Stopper contact part (contact part)
914 Engagement hook 915 Sliding surface 916 Recessed surface 92 Stopper member (second hinge member)
922 Stopper 93 Door fixing member (second hinge member)
931 Bearing 934 Engagement groove 935 Stopper hidden 936 Convex shape (prevention of breakage)
937 Door fixing member support part 937a Sliding surface (first sliding surface of the door fixing member)
937b Sliding surface (second sliding surface on the door fixing member)
937c Side part 937d Side convex part 937e Top surface part 937f Step part 938 Small hole 94 Screw 940 Storage recess 100 Refrigerator

Claims (2)

貯蔵室と、前記貯蔵室の前面の開口部を開閉する扉と、前記扉の上端部及び下端部を回動固定するヒンジ部と、備え、
前記ヒンジ部は、円筒状のヒンジ軸を有する下ヒンジ部材と、前記ヒンジ軸の軸受部を有し前記下ヒンジ部材に対して回動可能に設けられた扉固定部材と、を備えた冷蔵庫において、
前記扉固定部材は、前記軸受部の円周方向で且つ背面側に向かって延出する扉固定部材支持部を有し、
前記扉の閉鎖時に、前記下ヒンジ部材と前記扉固定部材支持部とが近接または当接し、
前記扉の回動時若しくは開放時に、前記下ヒンジ部材と前記扉固定部材支持部とが当接しない又は前記扉の閉鎖時よりも接触面積が小さい冷蔵庫。
A storage chamber, a door for opening and closing an opening on the front surface of the storage chamber, and a hinge portion for rotating and fixing the upper end and the lower end of the door are provided.
The hinge portion is a refrigerator provided with a lower hinge member having a cylindrical hinge shaft and a door fixing member having a bearing portion of the hinge shaft and rotatably provided with respect to the lower hinge member. ,
The door fixing member has a door fixing member support portion that extends in the circumferential direction of the bearing portion and toward the back surface side.
When the door is closed, the lower hinge member and the door fixing member support portion come into close contact with each other or come into contact with each other.
A refrigerator in which the lower hinge member and the door fixing member support portion do not come into contact with each other when the door is rotated or opened, or the contact area is smaller than when the door is closed.
貯蔵室と、前記貯蔵室の前面の開口部を開閉する扉と、前記扉の上端部及び下端部を回動固定するヒンジ部と、備え、
前記ヒンジ部は、円筒状のヒンジ軸を有する下ヒンジ部材と、前記ヒンジ軸の軸受部を有し前記下ヒンジ部材に対して回動可能に設けられた扉固定部材と、を備えた冷蔵庫において、
前記扉固定部材は、前記軸受部の円周方向で且つ背面側に向かって延出する扉固定部材支持部を有し、
前記扉の閉鎖時に、前記下ヒンジ部材と前記扉固定部材支持部とが近接または当接し、
前記下ヒンジ部は、前記扉固定部材の係合溝に係合する係合フックを備え、
前記扉の閉鎖時に、前記係合溝が前記係合フックを乗り越えた後に、前記下ヒンジ部材と前記扉固定部材支持部との近接または当接する面が重なり合う冷蔵庫。
A storage chamber, a door for opening and closing an opening on the front surface of the storage chamber, and a hinge portion for rotating and fixing the upper end and the lower end of the door are provided.
The hinge portion is a refrigerator provided with a lower hinge member having a cylindrical hinge shaft and a door fixing member having a bearing portion of the hinge shaft and rotatably provided with respect to the lower hinge member. ,
The door fixing member has a door fixing member support portion that extends in the circumferential direction of the bearing portion and toward the back surface side.
When the door is closed, the lower hinge member and the door fixing member support portion come into close contact with each other or come into contact with each other.
The lower hinge portion includes an engaging hook that engages with the engaging groove of the door fixing member.
A refrigerator in which, when the door is closed, the surfaces of the lower hinge member and the door fixing member support portion are overlapped with each other after the engaging groove has passed over the engaging hook.
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CN114251035B (en) * 2021-12-23 2023-05-12 江苏元隆电器有限公司 Hinge device for refrigerator track-changing door opening

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JPH11257835A (en) * 1998-03-06 1999-09-24 Hoshizaki Electric Co Ltd Door unit for refrigerator
JP2010078282A (en) * 2008-09-29 2010-04-08 Panasonic Corp Door device for refrigerator
JP2017078557A (en) * 2015-10-22 2017-04-27 ホシザキ株式会社 Door device
JP2017156002A (en) * 2016-03-01 2017-09-07 日立アプライアンス株式会社 refrigerator

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JPH11257835A (en) * 1998-03-06 1999-09-24 Hoshizaki Electric Co Ltd Door unit for refrigerator
JP2010078282A (en) * 2008-09-29 2010-04-08 Panasonic Corp Door device for refrigerator
JP2017078557A (en) * 2015-10-22 2017-04-27 ホシザキ株式会社 Door device
JP2017156002A (en) * 2016-03-01 2017-09-07 日立アプライアンス株式会社 refrigerator

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