JP4561208B2

JP4561208B2 - refrigerator

Info

Publication number: JP4561208B2
Application number: JP2004205658A
Authority: JP
Inventors: 健次津田; 剛樹平井
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2004-07-13
Filing date: 2004-07-13
Publication date: 2010-10-13
Anticipated expiration: 2024-07-13
Also published as: JP2006029617A

Description

本発明は、引出し装置を備えた冷蔵庫に関し、特に引出しレール取付けの構成に関するものである。 The present invention relates to a refrigerator provided with a drawer device, and more particularly to a structure for attaching a drawer rail.

近年、冷蔵庫は大型化に伴い、収納量が増加の傾向にあり、収納量の増加、使い勝手の向上を図るため、引出し装置を備えたものが主流となってきている（例えば、特許文献１参照）。 In recent years, as the size of refrigerators has increased, the amount of storage tends to increase, and in order to increase the amount of storage and improve usability, those equipped with a drawer device have become mainstream (for example, see Patent Document 1). ).

以下、図面を参照しながら、上記従来の引出し装置を備えた冷蔵庫について説明する。 Hereinafter, a refrigerator provided with the above-described conventional drawer device will be described with reference to the drawings.

図６は、従来の冷蔵庫の引出し式扉の斜視図である。図７は従来の冷蔵庫の引出し装置の要部断面図である。図８は、従来の冷蔵庫の引出し装置の断面図である。従来技術の冷蔵庫の引出し装置１７は、冷蔵庫本体前面の開閉自在の扉１と、この扉裏面左右に一端を固定したフレーム２と、後端を連結した連結フレーム１６と、フレーム２の後端に取り付けられた可動ローラ３と、内箱側壁４に固定，取付けられた前記フレーム２と可動ローラ３を摺動支持する固定レール５と固定ローラ６と、前記フレーム２と、連結フレーム１６に載置された庫内ケース１５で構成される。また、フレーム側面９は平面であり、固定レール５の溝部１２も平面である。 FIG. 6 is a perspective view of a drawer-type door of a conventional refrigerator. FIG. 7 is a cross-sectional view of a main part of a conventional refrigerator drawer device. FIG. 8 is a cross-sectional view of a conventional refrigerator drawer device. The refrigerator drawer device 17 of the prior art includes an openable / closable door 1 on the front surface of the refrigerator main body, a frame 2 having one end fixed to the left and right sides of the door, a connecting frame 16 connecting the rear ends, and a rear end of the frame 2. Mounted on the mounted movable roller 3, the frame 2 fixed and mounted on the inner box side wall 4, the fixed rail 5 that slides and supports the movable roller 3, the fixed roller 6, the frame 2, and the connecting frame 16. It is comprised by the case 15 which was made. Further, the frame side surface 9 is a flat surface, and the groove portion 12 of the fixed rail 5 is also a flat surface.

そして、扉１の扉裏面左右にあらかじめ固定したフレーム２の後端に取り付けられた可動ローラ３を、冷蔵庫本体側にあらかじめ取り付けた固定レール５の溝部１２に挿入し、フレーム２の底面と固定ローラ６が接して摺動するように組み込まれるものである。 Then, the movable roller 3 attached to the rear end of the frame 2 fixed in advance to the left and right sides of the door back surface of the door 1 is inserted into the groove 12 of the fixed rail 5 attached in advance to the refrigerator main body, and the bottom surface of the frame 2 and the fixed roller 6 is assembled so as to slide in contact therewith.

上記構成において、扉１を開閉すると、扉１に一端を固定したフレーム２と、フレーム２に連結された連結フレーム１６と、これらに載置された庫内ケース１５と可動ローラ３が、固定レール５と固定ローラ６上を摺動し、扉１と同期した前後方向の動きを可能としている。
実公昭６０−２７９１３号公報 In the above configuration, when the door 1 is opened and closed, the frame 2 having one end fixed to the door 1, the connecting frame 16 connected to the frame 2, the internal case 15 and the movable roller 3 placed thereon are fixed rails. 5 and the fixed roller 6 are allowed to slide in the front-rear direction synchronized with the door 1.
Japanese Utility Model Publication No. 60-27913

しかしながら、上記従来の冷蔵庫では、扉１の扉裏面左右にあらかじめ固定したフレーム２を冷蔵庫本体側にあらかじめ取り付けた固定レール５に組み込んで使用するため、フレーム２あるいは固定レール５の取付ばらつき、組立性を考慮して、組み込み状態でレールとローラ間には、ある程度のクリアランスを設定して設計している。このクリアランスにより扉１の開閉時に左右のガタツキが生じ、操作性が損なわれたり、操作時の品位が上がらないという課題を有していた。 However, in the conventional refrigerator, since the frame 2 fixed in advance on the left and right sides of the door 1 is incorporated into the fixed rail 5 attached in advance to the refrigerator body side, the mounting variation of the frame 2 or the fixed rail 5 and assemblability are reduced. In consideration of the above, a certain amount of clearance is set between the rail and the roller in the assembled state. Due to this clearance, left and right rattling occurs when the door 1 is opened and closed, and there is a problem that the operability is impaired and the quality during operation is not improved.

本発明は上記従来の課題を解決するものであり、ガタツキの少ない高品位かつ荷重を加えても操作力の小さい使い勝手の良い引出しを有する冷蔵庫を提供することを目的とする。 SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a refrigerator having a high quality with little backlash and an easy-to-use drawer with a small operating force even when a load is applied.

上記従来の課題を解決するために、本発明の冷蔵庫は、固定レールと移動レールとをあらかじめ組み込んだ状態のレール部材を内箱壁面に固定し、容器をレール部材に支持するとともに、前記レール部材の摺動部には潤滑剤を塗布したものである。 In order to solve the above-described conventional problems, the refrigerator of the present invention fixes a rail member in a state in which a fixed rail and a moving rail are previously incorporated to an inner box wall surface, supports a container on the rail member, and the rail member. The sliding part is coated with a lubricant.

これによって固定レールと移動レールとのクリアランスを小さくすることができ、ガタの少ない高品位な引出しを構成することができるとともに、容器に荷重を加えた場合でも摺動性が優れ、滑らかに移動レールが移動できる。 As a result, the clearance between the fixed rail and the moving rail can be reduced, a high-quality drawer with less play can be configured, and even when a load is applied to the container, the sliding property is excellent and the moving rail is smooth. Can move.

本発明の冷蔵庫は、ガタが小さく、容器に荷重を加えた場合でも滑らかに引出しを開閉することができ、高品位で使い勝手の良い、信頼性の高い引出し収納を構成することができる。 The refrigerator of the present invention has a small backlash and can smoothly open and close the drawer even when a load is applied to the container, and can constitute a high-quality, easy-to-use and highly reliable drawer storage.

請求項１に記載の発明は、内箱と、外箱と、前記内箱と外箱間に充填した発泡断熱材とよりなる前面開口部を有する断熱箱体と、前記断熱箱体内部に備えた容器と、−１８℃以下の貯蔵室に適用され前記容器を前後に移動可能とするレール部材と、前記レールを位置規制する連結部材とからなり、前記レール部材を左右に設け、前記レール部材は固定レールと移動レールとを有し、前記固定レールと移動レールはそれぞれ回転支持部材で支持され前記固定レールと移動レールを予め組み込んだ状態でレール部材を前記断熱箱体に固定するものであって、前記連結部材は水平部と垂直部とを有するとともに前記垂直部は前記水平部によって連結され、前記固定レールは前記連結部材の前記垂直部に固定され、容器を前記レール部材に支持するものにおいて、前記連結部材の線膨張率を１．０〜３．０×１０−６ｃｍ／ｃｍ・℃としたものであり、固定レールと移動レールとをあらかじめ組み込んだ状態のレール部材を断熱箱体に固定することにより冷凍温度体の貯蔵室であっても固定レールと移動レールとのクリアランスを小さくすることができ、ガタの少ない高品位な引出しを構成することができる。 The invention according to claim 1 is provided in a heat insulating box body having a front opening made of an inner box, an outer box, and a foam heat insulating material filled between the inner box and the outer box, and the heat insulating box body. A rail member that is applied to a storage chamber of −18 ° C. or lower and that allows the container to move back and forth, and a connecting member that regulates the position of the rail. Has a fixed rail and a moving rail, and each of the fixed rail and the moving rail is supported by a rotation support member, and the rail member is fixed to the heat insulating box with the fixed rail and the moving rail being assembled in advance. The connecting member has a horizontal portion and a vertical portion, the vertical portion is connected by the horizontal portion, the fixed rail is fixed to the vertical portion of the connecting member, and the container is supported by the rail member. In this case, the linear expansion coefficient of the connecting member is 1.0 to 3.0 × 10 −6 cm / cm · ° C., and the rail member in a state in which the fixed rail and the moving rail are incorporated in advance is a heat insulating box. The clearance between the fixed rail and the moving rail can be reduced even in the storage room for the refrigeration temperature body, and a high-quality drawer with little play can be configured.

請求項２に記載の発明は、請求項１に記載の発明において、レール部材の摺動部には潤滑剤を塗布したものであり、容器に荷重を加えた場合でも滑らかに移動レールが移動できるので、引出しの操作力を低減することができ、使い勝手の向上を図ることができる。 The invention according to claim 2 is the invention according to claim 1, wherein a lubricant is applied to the sliding portion of the rail member, and the moving rail can move smoothly even when a load is applied to the container. Therefore, the operation force of the drawer can be reduced and the usability can be improved.

請求項３に記載の発明は、請求項２に記載の発明において、潤滑剤は回転支持部材の移動する範囲に塗布したものであり、確実にレール部材のスムーズな動きを得ることができる。 The invention according to claim 3 is the invention according to claim 2 , wherein the lubricant is applied to the range in which the rotation support member moves , and the smooth movement of the rail member can be reliably obtained.

請求項４に記載の発明は、請求項２または３に記載の発明において、潤滑剤は低温でも潤滑性を有するように、潤滑剤の低温トルクがＪＩＳＫ２２２０．１８の試験方法で測定し−３０℃条件で回転トルクが２９Ｎ・ｃｍ以下で、かつＪＩＳＫ２２２０．７の試験方法で測定した、ちょう度が２６５以上のものを適用したものであり、低温から高温までのレール部材のスムーズな動きを確保することができる。 The invention according to claim 4 is the invention according to claim 2 or 3 , wherein the low temperature torque of the lubricant is measured by a test method of JISK 2220.18 so that the lubricant has lubricity even at a low temperature. Applying a rolling torque of 29 N · cm or less under the conditions and a consistency of 265 or more measured by the test method of JISK2220.7 , ensuring smooth movement of the rail member from low temperature to high temperature be able to.

請求項５に記載の発明は、請求項２から４のいずれか一項に記載の発明において、潤滑剤が、食品に対して安全なように、米国農務省の基準、ＵＳＤＡグループＨ１で承認されたものを適用したものであり、潤滑剤が万が一食品などに触れても人体への影響はなく、食品への安全性を確保することができる。 The invention according to claim 5 is approved by the USDA standard, USDA group H1, so that the lubricant is safe for food in the invention according to any one of claims 2 to 4. is obtained by applying the thing was, the lubricant is no effect on the human body to the touch, such as the emergency food, it is possible to ensure the safety of food.

請求項６に記載の発明は、請求項２から５のいずれか一項に記載の発明において、回転支持部材に固形潤滑材料を塗布したものであり、低温から高温まで潤滑信頼性を長期にわたって確保することができる。 The invention according to claim 6 is the invention according to any one of claims 2 to 5, wherein a solid lubricating material is applied to the rotating support member, and the lubrication reliability is ensured over a long period from low temperature to high temperature. can do.

（実施の形態１）
図１は本発明の実施の形態１における冷蔵庫の横断面図、図２は図１のＡ−Ａ断面図、図３は、同実施の形態の冷蔵庫レール部材の分解組立図、図４は同実施の形態の冷蔵庫レール部材の断面図、図５は本発明実施の形態２における冷蔵庫レール部材の断面図である。 (Embodiment 1)
1 is a cross-sectional view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is an exploded view of the refrigerator rail member of the same embodiment, and FIG. Sectional drawing of the refrigerator rail member of embodiment, FIG. 5 is sectional drawing of the refrigerator rail member in Embodiment 2 of this invention.

図１から図５において、冷蔵庫１８の断熱箱体１９は内箱２０と外箱２１との間に発泡断熱材２２を充填したものであり、前面開口部１９ａを有し、仕切壁２３ａ、２３ｂ、２６により、上部より冷蔵室２４、切替室２５、野菜室２７、冷凍室２８を形成している。 1 to 5, a heat insulating box 19 of the refrigerator 18 is filled with a foam heat insulating material 22 between an inner box 20 and an outer box 21, has a front opening 19 a, and partition walls 23 a and 23 b. , 26 form a refrigerator compartment 24, a switching chamber 25, a vegetable compartment 27, and a freezing compartment 28 from above.

また、仕切壁２６の両側面は開放部２６ａを有し、仕切壁２６内部には断熱箱体１９と同様に発泡断熱材２２が充填されている。 Moreover, the both sides | surfaces of the partition wall 26 have the opening part 26a, and the partition wall 26 is filled with the foam heat insulating material 22 similarly to the heat insulation box 19. FIG.

また、仕切壁２６の上部に配置する野菜室２７は冷却温度が５℃程度、下部に配置する冷凍室２８は冷却温度が−２０℃程度というように仕切壁２６を介して上下に異なる温度帯に設定されている。 In addition, the vegetable compartment 27 arranged at the upper part of the partition wall 26 has a cooling temperature of about 5 ° C., and the freezer compartment 28 arranged at the lower part has a cooling temperature of about −20 ° C. Is set to

野菜室２７と冷凍室２８とはそれぞれ前面開口部１９ａを野菜室ドア２９と冷凍室ドア３０にて閉塞され、更に野菜室２７と野菜室ドア２９および冷凍室２８と冷凍室ドア３０とはそれぞれレール部材３１にて連結されることにより前後方向に引出し摺動可能となっている。 The vegetable compartment 27 and the freezer compartment 28 are respectively closed at the front opening 19a by a vegetable compartment door 29 and a freezer compartment door 30, and the vegetable compartment 27, the vegetable compartment door 29, the freezer compartment 28, and the freezer compartment door 30 are respectively. By being connected by the rail member 31, it can be drawn and slid in the front-rear direction.

レール部材３１は固定レール３１ａと、移動レール３１ｂと、固定レール３１ａと移動レール３１ｂとの間に備えられた中間走行レール３１ｃと、中間走行レール３１ｃと固定レール３１ａおよび移動レール３１ｂとの係合を支持するベアリング等の複数の回転支持部材３１ｄとからなり、低温でも潤滑性を有する潤滑剤３１ｅをベアリング等の複数の回転支持部材３１ｄの移動する範囲の摺動部に塗布している。 The rail member 31 includes a fixed rail 31a, a movable rail 31b, an intermediate traveling rail 31c provided between the fixed rail 31a and the movable rail 31b, and an engagement between the intermediate traveling rail 31c, the fixed rail 31a, and the movable rail 31b. A lubricant 31e having a lubricity even at a low temperature is applied to a sliding portion in a range where the plurality of rotation support members 31d such as bearings move.

そして、固定レール３１ａと移動レール３１ｂと中間走行レール３１ｃと回転支持部材３１ｄと潤滑剤３１ｅとを予め組み込んだ状態で固定レール３１ａを内箱２０の両側壁面に固定し移動レール３１ｂをそれぞれの貯蔵室ドアに固定することでそれぞれの貯蔵室と貯蔵室ドアとを連結している。 Then, the fixed rail 31a is fixed to both side walls of the inner box 20 with the fixed rail 31a, the moving rail 31b, the intermediate running rail 31c, the rotation support member 31d, and the lubricant 31e pre-installed, and the moving rail 31b is stored in each. Each storage room and the storage room door are connected by being fixed to the room door.

上記構成により、固定レール３１ａと移動レール３１ｂと、固定レール３１ａと移動レール３１ｂとの間に回転支持部材３１ｄと潤滑剤３１ｅを介して配設した中間走行レール３１ｃとからなるレール部材３１は予め組み込んだものであり、それぞれのレール間のクリアランスを最小限に設定することができる。 With the above configuration, the rail member 31 including the fixed rail 31a, the movable rail 31b, and the intermediate traveling rail 31c disposed via the rotation support member 31d and the lubricant 31e between the fixed rail 31a and the movable rail 31b is previously provided. It is built in, and the clearance between each rail can be set to the minimum.

尚、潤滑剤３１ｅは低温でも潤滑性を有するように、潤滑剤の低温トルクがＪＩＳＫ２２２０．１８の試験方法で測定し−３０℃条件で回転トルクが２９Ｎ・ｃｍ以下で、かつＪＩＳＫ２２２０．７の試験方法で測定した、ちょう度が２６５以上のものを適用している。 Note that the lubricant 31e has a lubricity even at low temperatures, the low temperature torque of the lubricant is measured by the test method of JISK2220.18, the rotation torque is 29 N · cm or less at −30 ° C., and the test of JISK2220.7 The thing measured by the method and having a consistency of 265 or more is applied.

また、潤滑剤３１ｅは、食品に対して安全なように、米国農務省の食品添加物に関する基準、ＵＳＤＡグループＨ１で承認されたものを適用している。 In addition, as the lubricant 31e, a product approved by USDA Group H1, a standard for food additives of the US Department of Agriculture, is applied so as to be safe for food.

また、固定レール３１ａと移動レール３１ｂと中間走行レール３１ｃの少なくとも回転支持部材３１ｄが移動する範囲にフロロカーボン樹脂などの潤滑性のある固形潤滑材料３１ｆをコーティングしてもよい。 Further, at least the rotation support member 31d of the fixed rail 31a, the moving rail 31b, and the intermediate traveling rail 31c may be coated with a solid lubricating material 31f having lubricity such as fluorocarbon resin.

更に内箱２０の両側壁面に固定された左右のレール部材３１は左右対称の形状を有し左右共に備えることでより良い摺動性を発揮する。 Furthermore, the left and right rail members 31 fixed to the both side wall surfaces of the inner box 20 have a bilaterally symmetric shape and exhibit better slidability by having both left and right.

各貯蔵室の容器３２はレール部材３１を内箱２０に固定後にレール部材３１の移動レール３１ｂに支持し、各貯蔵室ドアを前後方向に引出すのと同期して移動レール３１ｂと共に前後に移動し、更に各貯蔵室ドアを少なくとも全開した時に容器３２は上方向に着脱自在となっている。 The container 32 of each storage chamber is supported by the moving rail 31b of the rail member 31 after the rail member 31 is fixed to the inner box 20, and is moved back and forth together with the moving rail 31b in synchronization with pulling out each storage chamber door in the front-rear direction. Further, the container 32 is detachable upward when each storage chamber door is fully opened.

また、左右一対のレール部材３１の固定レール３１ａは位置規制手段である連結部材３３によってそれぞれ内箱２０を介して固定位置を規制される。 Further, the fixed rails 31a of the pair of left and right rail members 31 are restricted in fixed positions via the inner box 20 by the connecting members 33 which are position restricting means.

連結部材３３は水平部３３ａと、水平部３３ａの両端に垂直部３３ｂを有する断面Ｈ形状で水平部３３ａは仕切壁２６内部で上仕切壁２６ｂと下仕切壁２６ｃとにはさまれて固定され、垂直部３３ｂは仕切壁２６の開放部２６ａより仕切壁２６の外部に突出し、内箱２０の発泡断熱材２２を充填した側に配置されるので連結部材３３は各貯蔵室内に露出しない構造となっている。 The connecting member 33 has a horizontal portion 33a and an H-shaped section having a vertical portion 33b at both ends of the horizontal portion 33a. The horizontal portion 33a is fixed inside the partition wall 26 between the upper partition wall 26b and the lower partition wall 26c. The vertical portion 33b protrudes from the opening portion 26a of the partition wall 26 to the outside of the partition wall 26 and is disposed on the side of the inner box 20 filled with the foam heat insulating material 22, so that the connecting member 33 is not exposed to each storage chamber. It has become.

また、垂直部３３ｂの両端はそれぞれ野菜室２７と冷凍室２８との上下方向の中心部付近まで達し、各貯蔵室内の左右のレール部材３１の固定レール３１ａは垂直部３３ｂの固定部３３ｃに固定され、少なくとも垂直部３３ｂの固定部３３ｃは内箱２０の発泡断熱材２２を充填した側の面に接している。更に左右の垂直部３３ｂには孔３３ｄを設けている。 Further, both ends of the vertical portion 33b reach the vicinity of the center in the vertical direction of the vegetable compartment 27 and the freezing compartment 28, and the fixed rails 31a of the left and right rail members 31 in each storage chamber are fixed to the fixed portions 33c of the vertical portion 33b. At least the fixing portion 33c of the vertical portion 33b is in contact with the surface of the inner box 20 on the side filled with the foam heat insulating material 22. Further, the left and right vertical portions 33b are provided with holes 33d.

なお、連結部材３３が大きくなる場合には前後に複数に分割し、それぞれに水平部３３ａと垂直部３３ｂと固定部３３ｃとを備え、必要に応じて孔３３ｄを設けると連結部材３３を一体とした場合と同様の効果が得られる。 When the connecting member 33 becomes large, it is divided into a plurality of front and rear parts, each having a horizontal portion 33a, a vertical portion 33b, and a fixing portion 33c, and if necessary provided with a hole 33d, the connecting member 33 is integrated. The same effect as that obtained can be obtained.

また、連結部材３３は線膨張率が１．０〜３．０×１０−６ｃｍ／ｃｍ・℃である材料にて形成されることが望ましい。また、熱伝導率が０．１〜０．２Ｗ／ｍ・Ｋである材料にて形成されることが望ましい。 The connecting member 33 is preferably formed of a material having a linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C. Moreover, it is desirable to form with the material whose heat conductivity is 0.1-0.2 W / m * K.

また、回転支持部材３１ｄは、たとえばローラ等を用いてもよい。 The rotation support member 31d may be a roller, for example.

以上のように構成された冷蔵庫について、以下その動作、作用を説明する。 About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

まず、各貯蔵室ドアを手前に引出すと各貯蔵室の両側部に備えられたレール部材３１の移動レール３１ｂと中間走行レール３１ｃとが回転支持部材３１ｄが回転することと回転支持部材３１ｄの移動範囲に塗布された潤滑剤３１ｅにより滑らかに手前側に摺動する。 First, when each storage room door is pulled out, the moving rail 31b of the rail member 31 and the intermediate traveling rail 31c provided on both sides of each storage room rotate the rotation support member 31d and move the rotation support member 31d. The lubricant 31e applied to the range slides smoothly toward the front side.

それに伴い、レール部材３１に支持された容器３２も手前に引出され、容器３２内に収納された被冷却物の取出し及び新たな被冷却物の収納が可能となる。 Accordingly, the container 32 supported by the rail member 31 is also pulled out to the front, and the object to be cooled stored in the container 32 can be taken out and a new object to be cooled can be stored.

以上のように本実施の形態においては固定レール３１ａと移動レール３１ｂとをあらかじめ組み込んだ状態のレール部材３１を内箱２０の両側壁面に固定することにより固定レール３１ａと移動レール３１ｂとのクリアランスを小さくすることができ、ガタの少ない高品位な引出しを構成することができる。また、クリアランスを小さくすることにより取付けのバラツキも小さくできるのでドアの取付け不具合による傾きや他のドアとの間隔の不均一化という外観不良も抑制することができる。これらの効果はレール部材３１の引出し代が大きいほど効果的である。また、固定レール３１ａと移動レール３１ｂとの間を回転支持部材３１ｄと潤滑剤３１ｅで支持することにより容器３２に荷重を加えた場合でも滑らかに移動レール３１ｂが移動できるので引出しの操作力を低減することができ、使い勝手の向上を図ることができる。 As described above, according to the present embodiment, the clearance between the fixed rail 31a and the movable rail 31b is fixed by fixing the rail member 31 in which the fixed rail 31a and the movable rail 31b are preliminarily assembled to both side walls of the inner box 20. It can be made small, and a high-quality drawer with little backlash can be configured. In addition, since the variation in mounting can be reduced by reducing the clearance, it is possible to suppress the appearance defect such as the inclination due to the door mounting failure and the non-uniform spacing with other doors. These effects are more effective as the allowance for the rail member 31 is larger. Further, by supporting the fixed rail 31a and the moving rail 31b with the rotation support member 31d and the lubricant 31e, the moving rail 31b can move smoothly even when a load is applied to the container 32, so that the operation force of the drawer is reduced. It is possible to improve usability.

また、低温でも潤滑性を有する潤滑剤３１ｅをベアリング等の複数の回転支持部材３１ｄの移動する範囲の摺動部に塗布しているので、容器に荷重を加えた場合でも滑らかに移動レールが確実に摺動できるので引出しの操作力を低減することができ、使い勝手の向上を図ることができる。 In addition, since the lubricant 31e having lubricity even at low temperatures is applied to the sliding portion of the range in which the plurality of rotation support members 31d such as bearings move, the moving rail is surely smoothly even when a load is applied to the container. Therefore, the operation force of the drawer can be reduced and the usability can be improved.

また、潤滑剤３１ｅは低温でも潤滑性を有するように、潤滑剤の低温トルクがＪＩＳＫ２２２０．１８の試験方法で測定し−３０℃条件で回転トルクが２９Ｎ・ｃｍ以下で、かつＪＩＳＫ２２２０．７の試験方法で測定した、ちょう度が２６５以上のものを適用しているので、低温から高温までのレール部材のスムーズな動きを確保することができる。 Further, the lubricant 31e has a lubricity even at low temperatures, and the low temperature torque of the lubricant is measured by the test method of JISK2220.18, and the rotational torque is 29 N · cm or less at −30 ° C., and the test of JISK2220.7 Since the consistency measured by the method is 265 or more, smooth movement of the rail member from the low temperature to the high temperature can be ensured.

また、潤滑剤３１ｅは、食品に対して安全なように、米国農務省の食品添加物に関する基準、ＵＳＤＡグループＨ１で承認されたものを適用しているので、潤滑剤３１ｅが万が一食品などに触れても人体への影響はなく、食品への安全性を確保することができる。 Also, as the lubricant 31e is applied to the US Department of Agriculture standards for food additives, approved by the USDA Group H1, so that it is safe for food, the lubricant 31e should touch foods by any chance. However, there is no effect on the human body, and food safety can be ensured.

また、上記潤滑剤３１ｅを適用することで、野菜室２７と冷凍室２８に同一仕様のレール部材３１を適用でき、冷凍から冷蔵の温度帯の貯蔵室におけるレール部材の兼用化が可能となり、作業性、低コスト化を図ることができる。 In addition, by applying the lubricant 31e, the rail member 31 having the same specification can be applied to the vegetable compartment 27 and the freezer compartment 28, and the rail member can be shared in the storage compartment in the temperature range from freezing to refrigeration. And cost reduction can be achieved.

また、連結部材３３によりレール部材３１の固定レール３１ａの取付位置を規制することで左右一対のレール部材３１の幅寸法あるいは平行度が規定どおりに保持できることと、連結部材３３により断熱箱体１９の発泡断熱材２２充填後の冷却時の熱収縮等による寸法変化を抑制することで、固定レール３１ａと移動レール３１ｂとのクリアランスを小さく設定したレール部材３１をあらかじめ組み込んだ状態で内箱２０の両側壁面に固定する仕様としても左右一対のレール部材３１間の寸法精度を高く保てるので容器３２の引出し時の操作性を、位置規制手段である連結部材３３により高めることができ、また、固定レール３１ａ移動レール３１ｂとの間を回転支持部材３１ｄと潤滑剤３１ｅとで支持しているので摺動部の磨耗などが防止され長期にわたって操作信頼性の確保も図ることができる。 Further, by restricting the mounting position of the fixed rail 31 a of the rail member 31 by the connecting member 33, the width dimension or parallelism of the pair of left and right rail members 31 can be maintained as specified, and the connecting member 33 can prevent the heat insulating box 19 from being attached. Both sides of the inner box 20 with the rail member 31 in which the clearance between the fixed rail 31a and the movable rail 31b is set small in advance is suppressed by suppressing a dimensional change due to heat shrinkage at the time of cooling after filling the foam heat insulating material 22 Since the dimensional accuracy between the pair of left and right rail members 31 can be kept high as a specification to be fixed to the wall surface, the operability at the time of pulling out the container 32 can be enhanced by the connecting member 33 as the position restricting means, and the fixed rail 31a. Since the rotation support member 31d and the lubricant 31e support the moving rail 31b, wear of the sliding portion is prevented. Re ensuring operation reliability for a long time it can also be reduced.

また、中間走行レール３１ｃを備えることによりレール部材３１の移動レール３１ｂの引出し代を大きくすることができるので容器３２の奥部まで引き出す事ができ、容器３２の奥部まで見渡すことが可能となり、容器３２内の被冷却物の使い忘れによるロスを防止したり、容器３２をレール部材３１に着脱することが容易となるので使い勝手の向上を図ることができる。 In addition, by providing the intermediate traveling rail 31c, it is possible to increase the pull-out allowance of the moving rail 31b of the rail member 31, so that it can be pulled out to the inner part of the container 32, and can be overlooked to the inner part of the container 32, Loss due to forgetting to use the object to be cooled in the container 32 can be prevented, and the container 32 can be easily attached to and detached from the rail member 31, so that the usability can be improved.

特に各貯蔵室の容器３２の奥行きを大きくしたものを手前まで引出したい場合には中間走行レール３１ｃを備えることにより、引出し時のレール部材３１の強度や操作性に有効となる。 In particular, when it is desired to pull out the container 32 in each storage room with the depth increased to the near side, the intermediate travel rail 31c is provided, which is effective for the strength and operability of the rail member 31 when being pulled out.

また、連結部材３３を各貯蔵室内に露出させないようにしたので連結部材３３を各貯蔵室内部に配置した場合に比べ収納内容積の低減を抑制することができる。 Further, since the connecting members 33 are not exposed in the respective storage chambers, it is possible to suppress the reduction of the storage internal volume as compared with the case where the connecting members 33 are arranged in the respective storage chambers.

また、連結部材３３を金属材料で形成した場合に端面のエッジによる怪我を防止できるので安全性を向上させることができ、更に端面のエッジ削除処理を廃止できるのでコストダウンを図ることができる。 In addition, when the connecting member 33 is formed of a metal material, it is possible to prevent injuries due to the edge of the end face, so that safety can be improved, and furthermore, the edge deletion process of the end face can be eliminated, so that the cost can be reduced.

また、左右の固定レール３１ａを連結する連結部材３３を断熱箱体１９の発泡断熱材２２内に埋設したので、冷蔵庫１８の使用時に連結部材３３の結露，着霜の防止を図ることができ、更に連結部材３３が空気と接することが無いので連結部材３３の耐食性を向上させることができ、連結部材３３の防錆処理も軽減できるのでコストダウンを図ることができる。 Moreover, since the connecting member 33 that connects the left and right fixed rails 31a is embedded in the foam heat insulating material 22 of the heat insulating box 19, it is possible to prevent condensation and frost formation of the connecting member 33 when the refrigerator 18 is used. Further, since the connecting member 33 does not come into contact with air, the corrosion resistance of the connecting member 33 can be improved, and the rust prevention treatment of the connecting member 33 can be reduced, so that the cost can be reduced.

また、連結部材３３の周辺に発泡断熱材２２があることで連結部材３３の取付け強度も向上し、位置規制の信頼性やレール部材３１の取付け強度の向上を図ることができる。 Further, the presence of the foam heat insulating material 22 around the connecting member 33 can improve the attachment strength of the connecting member 33, and can improve the reliability of position regulation and the attachment strength of the rail member 31.

また、断熱箱体１９を野菜室２７と冷凍室２８に区画する仕切壁２６を設け、左右の固定レール３１ａを連結する連結部材３３を仕切壁２６の内部に設けたので、複数の貯蔵空間を有する場合に連結部材３３を配置することによる収納内容積の低減を抑制することができる。 Moreover, since the partition wall 26 which divides the heat insulation box 19 into the vegetable compartment 27 and the freezer compartment 28 was provided, and the connection member 33 which connects the right and left fixed rail 31a was provided inside the partition wall 26, a plurality of storage spaces are provided. When it has, the reduction of the storage internal volume by arrange | positioning the connection member 33 can be suppressed.

また、上下に隣り合った野菜室２７と冷凍室２８にそれぞれレール部材３１を備え、それぞれのレール部材３１の固定レール３１ａを連結部材３３で一体に固定したので、複数の貯蔵室の操作性を同時に高めることができる。 Moreover, since the vegetable room 27 and the freezing room 28 which adjoined up and down were each provided with the rail member 31, and the fixed rail 31a of each rail member 31 was integrally fixed by the connection member 33, the operativity of several storage chambers is carried out. It can be increased at the same time.

また、連結部材３３を両端に垂直部３３ｂを有する断面Ｈ形状とし、垂直部３３ｂに上下に隣り合った野菜室２７と冷凍室２８のレール部材３１の固定レール３１ａを一体に固定したので、一つの連結部材３３に複数のレール部材３１の固定レール３１ａを固定することにより部品点数の削減によるコストダウンを図ることができる。 In addition, since the connecting member 33 has an H-shaped cross section having the vertical portions 33b at both ends, the fixed rail 31a of the rail member 31 of the vegetable compartment 27 and the freezing compartment 28 adjacent to the vertical portion 33b is fixed integrally. By fixing the fixed rails 31a of the plurality of rail members 31 to one connecting member 33, it is possible to reduce the cost by reducing the number of parts.

また、連結部材３３の両端の垂直部３１ｂに孔３１ｃを設けたので、複数の貯蔵室の温度帯が異なる場合に連結部材３３からの熱伝達を抑制し、温度帯の高い貯蔵室側の結露の防止や熱リークによる消費電力の増加を抑制できる。 Further, since the holes 31c are provided in the vertical portions 31b at both ends of the connecting member 33, heat transfer from the connecting member 33 is suppressed when the temperature zones of the plurality of storage chambers are different, and condensation on the storage chamber side having a high temperature zone is suppressed. And increase in power consumption due to heat leakage can be suppressed.

なお、垂直部３１ｂに設ける孔３１ｃは強度を維持できる程度に複数設けることで、熱移動量を効果的に低減できる。 In addition, the heat transfer amount can be effectively reduced by providing a plurality of holes 31c provided in the vertical portion 31b to such an extent that the strength can be maintained.

また、左右一対のレール部材３１の固定レール３１ａを前後方向に複数の連結部材３３で連結した場合には、特にレール部材３１を大型冷蔵庫に使用した場合に、連結部材３３を複数に分割することにより連結部材３３の小型化を図れるのでコストダウンを図ることができる。 In addition, when the fixed rails 31a of the pair of left and right rail members 31 are connected in the front-rear direction by a plurality of connecting members 33, particularly when the rail members 31 are used in a large refrigerator, the connecting member 33 is divided into a plurality of parts. Accordingly, the size of the connecting member 33 can be reduced, so that the cost can be reduced.

また、連結部材３３の線膨張率を１．０〜３．０×１０−６ｃｍ／ｃｍ・℃とした線膨張率が小さい材料で形成することにより、冷蔵庫１８の運転時に連結部材３３が収縮することによる操作性への影響を低減できるのでレール部材３１の操作信頼性を向上することができる。 Moreover, the connection member 33 contracts during operation of the refrigerator 18 by forming the connection member 33 with a material having a low linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C. Since the influence on the operability due to this can be reduced, the operation reliability of the rail member 31 can be improved.

また、連結部材３３の熱伝導率を０．１〜０．２Ｗ／ｍ・Ｋとしたので熱伝導率が小さい材料で形成することにより、特に複数の貯蔵室の温度帯が異なる場合に連結部材３３からの熱伝達を抑制し、温度帯の高い貯蔵室側の結露の防止や熱リークによる消費電力の増加を抑制できる。 In addition, since the thermal conductivity of the connecting member 33 is 0.1 to 0.2 W / m · K, the connecting member 33 is formed of a material having a low thermal conductivity, particularly when the temperature zones of the plurality of storage chambers are different. It is possible to suppress heat transfer from 33, prevent condensation on the side of the storage room having a high temperature zone, and suppress an increase in power consumption due to heat leakage.

なお、本実施の形態ではレール部材３１と容器３２とを野菜２７と冷凍室２８とで共通としたが、実使用の収納形態などによりそれぞれ貯蔵室別に違う材料で形成したものを使用するとさらにコスト低減、信頼性向上を図ることができる。 In the present embodiment, the rail member 31 and the container 32 are shared by the vegetables 27 and the freezer compartment 28. However, it is more costly to use materials that are made of different materials for each storage compartment depending on the storage configuration used. Reduction and improvement in reliability can be achieved.

また、連結部材３３は線膨張率が１．０〜３．０×１０−６ｃｍ／ｃｍ・℃、熱伝導率が０．１〜０．２Ｗ／ｍ・Ｋである材料としたが、一般的には線膨張率に関しては金属類が１．０〜３．０×１０−６ｃｍ／ｃｍ・℃で樹脂類は１．０〜１５．０×１０−５ｃｍ／ｃｍ・℃であり、熱伝導率は金属類が１．０〜４００．０Ｗ／ｍ・Ｋで樹脂類は０．１〜０．２Ｗ／ｍ・Ｋである。 The connecting member 33 is made of a material having a linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C. and a thermal conductivity of 0.1 to 0.2 W / m · K. In terms of linear expansion coefficient, metals are 1.0 to 3.0 × 10 −6 cm / cm · ° C. and resins are 1.0 to 15.0 × 10 −5 cm / cm · ° C. Is 1.0 to 400.0 W / m · K for metals and 0.1 to 0.2 W / m · K for resins.

従って、連結部材３３の材料としては冷蔵庫１８の運転時にレール部材３１の取付け位置精度が要求される場合には線膨張率の小さい金属類を使用し、温度帯の高い貯蔵室側の結露の防止や熱リークによる消費電力の増加の抑制が要求される場合には熱伝導率の小さい樹脂類を使用することがのぞましい。また、複数の貯蔵室に対して両者を一体化して用いてもよい。 Therefore, when the mounting position accuracy of the rail member 31 is required during operation of the refrigerator 18 as the material of the connecting member 33, metals having a low linear expansion coefficient are used to prevent condensation on the storage room side having a high temperature zone. When it is required to suppress the increase in power consumption due to heat leaks, it is preferable to use resins with low thermal conductivity. Moreover, you may integrate and use both with respect to several storage chambers.

なお、本実施の形態では、野菜室２７と冷凍室２８にレール部材３１を用いたもので説明したが、引出し容器を備えた貯蔵室に適宜適用できる。たとえば、野菜室２７の上部に位置する切替室２５や、切替室２５の横に併設した製氷室（図示せず）等に用いてもよい。 In the present embodiment, the vegetable member 27 and the freezer compartment 28 are described as using the rail member 31, but can be appropriately applied to a storage room provided with a drawer container. For example, you may use for the switching room 25 located in the upper part of the vegetable compartment 27, the ice making room (not shown) attached to the side of the switching room 25, etc.

また、本実施の形態では、連結部材３３は水平部３３ａと、水平部３３ａの両端に垂直部３３ｂを有する断面Ｈ形状とし、野菜室２７と冷凍室２８のそれぞれのレール部材３１を一体に固定したもので説明したが、野菜室２７と冷凍室２８のそれぞれに両端に垂直部を有する断面コの字状の連結部材を用いてもよい。この場合、野菜室２７と冷凍室２８が上下に併設していない冷蔵庫において、それぞれガタツキの少ない高品位かつ荷重を加えても操作力の小さい使い勝手の良い引出しを提供することができる。また、複数のレール部材を一つの連結部材に固定した場合に比べ複数の貯蔵室の温度帯が異なる場合に更に連結部材からの熱伝達を抑制し、温度帯の高い貯蔵室側の結露の防止や熱リークによる消費電力の増加を抑制できる。 In the present embodiment, the connecting member 33 has a horizontal portion 33a and an H-shaped cross section having the vertical portions 33b at both ends of the horizontal portion 33a, and the rail members 31 of the vegetable compartment 27 and the freezer compartment 28 are fixed integrally. As described above, a connecting member having a U-shaped cross section having vertical portions at both ends may be used for each of the vegetable compartment 27 and the freezing compartment 28. In this case, in a refrigerator in which the vegetable compartment 27 and the freezer compartment 28 are not provided vertically, it is possible to provide an easy-to-use drawer with a small operation force even when a high quality and load with little backlash are applied. In addition, heat transfer from the connecting member is further suppressed when the temperature zones of the plurality of storage chambers are different compared to when a plurality of rail members are fixed to one connecting member, and condensation on the storage chamber side having a high temperature zone is prevented. And increase in power consumption due to heat leakage can be suppressed.

なお、左右の一対のレール部材の固定レールを複数の連結部材で連結してもよい。この場合、連結部材を複数に分割することにより連結部材の小型化を図れるのでコストダウン、軽量化を図ることができる。 Note that the fixed rails of the pair of left and right rail members may be connected by a plurality of connecting members. In this case, since the connecting member can be reduced in size by dividing the connecting member into a plurality of parts, the cost can be reduced and the weight can be reduced.

以上のように、本発明にかかる冷蔵庫は、ガタが小さく、容器に荷重を加えた場合でも滑らかに引出しを開閉することができ、高品位で使い勝手の良い引出し収納ができるので、冷凍装置を備えた冷却貯蔵庫の引出し装置等の用途にも適用できる。 As described above, the refrigerator according to the present invention is small in play, can open and close smoothly even when a load is applied to the container, and has a high-quality and easy-to-use drawer storage. It can also be applied to applications such as a cooling storage drawer.

本発明の実施の形態１における冷蔵庫の横断面図Cross-sectional view of the refrigerator in the first embodiment of the present invention 図１のＡ−Ａ断面図AA sectional view of FIG. 同実施の形態の冷蔵庫のレール部材の分解組立図An exploded view of the rail member of the refrigerator of the same embodiment 同実施の形態の冷蔵庫のレール部材の断面図Sectional drawing of the rail member of the refrigerator of the embodiment 本発明実施の形態２の冷蔵庫のレール部材の断面図Sectional drawing of the rail member of the refrigerator of Embodiment 2 of this invention 従来の冷蔵庫の引出し式扉の斜視図Perspective view of conventional refrigerator drawer door 従来の冷蔵庫の引出し装置の要部断面図Sectional view of the main part of a conventional refrigerator drawer device 従来の冷蔵庫の引出し装置の断面図Sectional view of a conventional refrigerator drawer device

符号の説明Explanation of symbols

１８冷蔵庫
１９断熱箱体
１９ａ前面開口部
２０内箱
２１外箱
２２発泡断熱材
２８冷凍室
３１レール部材
３１ａ固定レール
３１ｂ移動レール
３１ｃ中間走行レール
３１ｄ回転支持部材
３１ｅ潤滑剤
３１ｆ固形潤滑材料
３２容器 18 Refrigerator 19 Heat insulation box 19a Front opening 20 Inner box 21 Outer box 22 Foam insulation 28 Freezer compartment 31 Rail member 31a Fixed rail 31b Moving rail 31c Intermediate traveling rail 31d Rotating support member 31e Lubricant 31f Solid lubricant material 32 Container

Claims

内箱と、外箱と、前記内箱と外箱間に充填した発泡断熱材とよりなる前面開口部を有する断熱箱体と、前記断熱箱体内部に備えた容器と、−１８℃以下の貯蔵室に適用され前記容器を前後に移動可能とするレール部材と、前記レールを位置規制する連結部材とからなり、前記レール部材を左右に設け、前記レール部材は固定レールと移動レールとを有し、前記固定レールと移動レールはそれぞれ回転支持部材で支持され前記固定レールと移動レールを予め組み込んだ状態でレール部材を前記断熱箱体に固定するものであって、前記連結部材は水平部と垂直部とを有するとともに前記垂直部は前記水平部によって連結され、前記固定レールは前記連結部材の前記垂直部に固定され、容器を前記レール部材に支持するものにおいて、前記連結部材の線膨張率を１．０〜３．０×１０−６ｃｍ／ｃｍ・℃としたことを特徴とする冷蔵庫。 An inner box, an outer box, and the heat-insulating main body having the inner box and the more the outer box between the foam insulation filled into the opening on the front said and container with a heat-insulating main body portion, of below -18 ℃ A rail member that is applied to the storage chamber and that allows the container to move back and forth, and a connecting member that regulates the position of the rail. The rail member is provided on the left and right, and the rail member has a fixed rail and a moving rail. The fixed rail and the moving rail are each supported by a rotation support member, and the rail member is fixed to the heat insulating box in a state in which the fixed rail and the moving rail are assembled in advance. The vertical member is connected by the horizontal part, the fixed rail is fixed to the vertical part of the connecting member, and the container is supported by the rail member. A linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C. is a refrigerator.

前記レール部材の摺動部には潤滑剤を塗布した請求項１に記載の冷蔵庫。The refrigerator according to claim 1, wherein a lubricant is applied to the sliding portion of the rail member.

潤滑剤は回転支持部材の移動する範囲に塗布した請求項２に記載の冷蔵庫。 The refrigerator according to claim 2 , wherein the lubricant is applied to a range in which the rotation support member moves.

潤滑剤は低温でも潤滑性を有するように、潤滑剤の低温トルクがＪＩＳＫ２２２０．１８の試験方法で測定し−３０℃条件で回転トルクが２９Ｎ・ｃｍ以下で、かつＪＩＳＫ２２２０．７の試験方法で測定した、ちょう度が２６５以上のものを適用した請求項２または３に記載の冷蔵庫。 The lubricant is measured at the low temperature torque by the test method of JISK2220.18, measured at -30 ° C under the rotation torque of 29 N · cm or less, and by the test method of JISK2220.7 so that the lubricant has lubricity even at low temperature. The refrigerator according to claim 2 or 3 , to which a consistency of 265 or more is applied.

潤滑剤が、食品に対して安全なように、米国農務省の基準、ＵＳＤＡグループＨ１で承認されたものを適用した請求項２から４のいずれか一項に記載の冷蔵庫。 The refrigerator as described in any one of Claim 2 to 4 which applied what was approved by the USDA standard and USDA group H1 so that a lubricant might be safe with respect to foodstuffs.

回転支持部材に固形潤滑材料を塗布した請求項２から５のいずれか一項に記載の冷蔵庫。 The refrigerator according to any one of claims 2 to 5 , wherein a solid lubricating material is applied to the rotation support member.