JP5671675B2 - Plug member, low temperature storage - Google Patents

Plug member, low temperature storage Download PDF

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Publication number
JP5671675B2
JP5671675B2 JP2010242447A JP2010242447A JP5671675B2 JP 5671675 B2 JP5671675 B2 JP 5671675B2 JP 2010242447 A JP2010242447 A JP 2010242447A JP 2010242447 A JP2010242447 A JP 2010242447A JP 5671675 B2 JP5671675 B2 JP 5671675B2
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male screw
opening
flange member
heat insulating
screw
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JP2012093055A (en
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高橋　義広
義広 高橋
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PHC Holdings Corp
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Panasonic Healthcare Holdings Co Ltd
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Priority to JP2010242447A priority Critical patent/JP5671675B2/en
Priority to KR1020110098001A priority patent/KR101396719B1/en
Priority to EP11186986.3A priority patent/EP2447635B1/en
Priority to US13/283,814 priority patent/US20120103992A1/en
Priority to CN201110332932.2A priority patent/CN102466384B/en
Publication of JP2012093055A publication Critical patent/JP2012093055A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/047—Pressure equalising devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/025—Secondary closures

Description

本発明は、栓部材、低温貯蔵庫に関する。   The present invention relates to a plug member and a low-temperature storage.

冷凍物品等の貯蔵や、生体組織及び検体等の冷却保存に用いられる低温貯蔵庫では、庫内の空気が冷却され、庫内の気圧が庫外の気圧よりも低い陰圧の状態となる場合がある。庫内が陰圧状態になると、低温貯蔵庫の扉を開くことは難しくなるため、低温貯蔵庫には、一般的に庫内の陰圧状態を解消するための圧力調整装置が設けられている（例えば、特許文献１）。   In a low-temperature storage used for storage of frozen articles, etc., and for cold storage of living tissues and specimens, the air in the storage is cooled, and the pressure inside the storage may be in a negative pressure state lower than the pressure outside the storage. is there. When the inside of the chamber is in a negative pressure state, it is difficult to open the door of the low temperature storage. Therefore, the low temperature storage is generally provided with a pressure adjusting device for eliminating the negative pressure state in the storage (for example, Patent Document 1).

特開２０１０−２５４７１号公報JP 2010-25471 A

特許文献１では、低温貯蔵庫の庫外の空気を庫内に流入させるポートを塞ぐ栓を、利用者が取り外すことにより庫内の陰圧状態を解消している。ところで、利用者は、ポートを塞ぐ栓を取り外す際に栓を落としてしまうことがある。このような場合、低温貯蔵庫の設置場所や低温貯蔵庫の構造等によっては、落下した栓を拾い、再びポートを塞ぐことは利用者の負担になる場合がある。   In patent document 1, the negative pressure state in a store | warehouse | chamber is canceled when a user removes the plug which plugs up the port which flows the air outside the store | warehouse | chamber of a low temperature store into the store | warehouse | chamber. By the way, a user may drop a plug when removing the plug that closes the port. In such a case, depending on the installation location of the low temperature storage, the structure of the low temperature storage, etc., it may be a burden on the user to pick up the dropped stopper and close the port again.

本発明は上記課題を鑑みてなされたものであり、利用者が低温貯蔵庫の陰圧状態を解消する際に、利用者の負担を軽減することができる栓部材を提供することを目的とする。   This invention is made | formed in view of the said subject, and when a user eliminates the negative pressure state of a low-temperature storage, it aims at providing the plug member which can reduce a user's burden.

上記目的を達成するため、本発明の一つの側面に係る開口面を有する断熱筐体と、前記開口面を開放または閉塞する断熱扉と、前記断熱筐体の内部に収納された物品を冷却する冷却装置と、前記断熱筐体を構成する断熱壁の庫外側から庫内側へ貫通し内周面に雌螺子が形成された貫通孔と、前記貫通孔の前記庫外側の開口部周囲に設けられた第１鍔部材と、を含んで構成される低温貯蔵庫に用いられ、前記開口部を開放または閉塞する栓部材であって、前記雌螺子に螺合される雄螺子と、前記雄螺子が前記雌螺子に螺合されることにより、前記第１鍔部材に当接して前記開口部を閉塞する第２鍔部材と、前記第２鍔部材の前記第１鍔部材側に設けられたパッキンと、を備え、前記第２鍔部材の外周部には、前記パッキンの前記第１鍔部材に当接する面よりも前記断熱筐体側に延伸した突出部が設けられ、前記突出部の長さは、前記第１鍔部材の厚さよりも短く、前記雄螺子は、前記雄螺子が前記雌螺子に螺合されつつ、前記第１鍔部材に前記第２鍔部材が当接されていない状態において、前記開口部の一部を開放する切れ込みが外周の一部に形成されてなること、とする。 To achieve the above object, a heat insulating housing having an opening surface according to one aspect of the present invention, a heat insulating door that opens or closes the opening surface, and an article stored in the heat insulating housing are cooled. A cooling device, a through-hole that penetrates from the outside of the heat insulating wall constituting the heat insulating housing to the inside of the warehouse and has a female screw formed on the inner peripheral surface thereof, and is provided around an opening of the through-hole on the outside of the warehouse. and a first flange member, used in low-temperature storage configured to include a, a plug member to open or close the opening portion, and a male screw is screwed into the female thread, the male thread is the by being screwed into the female screw, and a second flange member closing the opening in contact with the first flange member, a packing provided on the first flange member side of the second flange member, wherein the the outer circumference of the second flange member, those in the first flange member of the packing Said protrusion extending into the heat insulating housing side is also provided from the surface, the length of the projecting portion, the shorter than the thickness of the first flange member, said male screw is threaded on the male screw the female screw In the state where the second flange member is not in contact with the first flange member , a notch that opens a part of the opening is formed in a part of the outer periphery.

利用者が低温貯蔵庫の陰圧状態を解消する際に、利用者の負担を軽減することができる栓部材を提供することができる。   When a user cancels the negative pressure state of a low-temperature storage, the plug member which can reduce a user's burden can be provided.

本発明の一実施形態である低温貯蔵庫１０の斜視図である。It is a perspective view of low-temperature storage 10 which is one embodiment of the present invention. 断熱扉２１，２２が開放された状態の低温貯蔵庫１０の斜視図である。It is a perspective view of the low-temperature storage 10 of the state by which the heat insulation doors 21 and 22 were open | released. 低温貯蔵庫１０の平面図である。1 is a plan view of a low temperature storage 10. 分解された圧力調整装置３０および断熱筐体２０の断熱壁の一部を示す図である。FIG. 3 is a diagram showing a part of the heat insulation walls of the pressure adjustment device 30 and the heat insulation housing 20 that are disassembled. 部材６０及び部材６１が断熱筐体２０の断熱壁に実際に取り付けられた状態を示す図である。FIG. 4 is a diagram illustrating a state in which the member 60 and the member 61 are actually attached to the heat insulating wall of the heat insulating housing 20. 栓部材６２の斜視図である。6 is a perspective view of a plug member 62. FIG. 栓部材６２の側面図である。6 is a side view of a plug member 62. FIG. 貫通孔８０が閉塞された状態の圧力調整装置３０の断面図である。It is sectional drawing of the pressure regulator 30 in the state by which the through-hole 80 was obstruct | occluded. 貫通孔８０が開放された状態の圧力調整装置３０の断面図である。It is sectional drawing of the pressure regulator 30 in the state by which the through-hole 80 was open | released.

本明細書および添付図面の記載により、少なくとも以下の事項が明らかとなる。
図１及び図２を参照しつつ、本発明の一実施形態である低温貯蔵庫１０の概要について説明する。図１は、断熱扉２１が閉じられた状態の低温貯蔵庫１０の斜視図であり、図２は、断熱扉２１，２２が開放された状態の低温貯蔵庫１０の斜視図である。なお、ここでは、Ｘ軸方向を低温貯蔵庫１０に対する左右の方向とし、Ｙ軸方向を低温貯蔵庫１０に対する上下の方向とし、Ｚ軸方向を低温貯蔵庫１０に対する前後の方向とする。 At least the following matters will become apparent from the description of this specification and the accompanying drawings.
With reference to FIG.1 and FIG.2, the outline | summary of the low temperature storage 10 which is one Embodiment of this invention is demonstrated. FIG. 1 is a perspective view of the low temperature storage 10 with the heat insulating door 21 closed, and FIG. 2 is a perspective view of the low temperature storage 10 with the heat insulating doors 21 and 22 opened. Here, the X-axis direction is the left-right direction with respect to the low-temperature storage 10, the Y-axis direction is the vertical direction with respect to the low-temperature storage 10, and the Z-axis direction is the front-back direction with respect to the low-temperature storage 10.

低温貯蔵庫１０は、例えば−８５℃以下の超低温度域において、冷凍物品等の貯蔵や、生体組織等の保存を行い、前面（＋Ｚ側）に開口面を有する断熱筐体２０を備えている。   The low-temperature storage 10 includes a heat-insulating housing 20 that stores frozen articles and preserves living tissues and the like in an ultra-low temperature range of −85 ° C. or less, for example, and has an opening surface on the front surface (+ Z side).

断熱筐体２０の前面の開口面には、前面の開口面を開放または閉塞する断熱扉２１，２２が設けられ、断熱筐体２０の下側（−Ｙ側）には、庫内を冷却する冷却装置２３が設けられている。また、断熱筐体２０の左側（−Ｘ側）の側面には、庫内の陰圧状態を解消するための圧力調整装置３０が設けられている。   Insulating doors 21 and 22 that open or close the opening surface of the front surface are provided on the opening surface of the front surface of the heat insulating housing 20, and the interior is cooled on the lower side (−Y side) of the heat insulating housing 20. A cooling device 23 is provided. In addition, a pressure adjusting device 30 for eliminating the negative pressure state in the cabinet is provided on the left side (−X side) side surface of the heat insulating casing 20.

断熱扉２１は、いわゆる外扉であり、庫内の温度の設定等を行うためのコントロールパネル３１が設けられる。断熱扉２１の左端には、断熱扉２１を開閉するためのハンドル３２が設けられている。また、断熱筐体２０の左側の側面には、断熱扉２１が閉じられた際に、ハンドル３２とともに断熱扉２１を固定するためのロック部材３３が設けられている。断熱扉２１の内側には、内扉として庫内の断熱性を高めるための断熱扉２２が設けられている。   The heat insulating door 21 is a so-called outer door, and is provided with a control panel 31 for setting the temperature in the storage. A handle 32 for opening and closing the heat insulating door 21 is provided at the left end of the heat insulating door 21. Further, a lock member 33 is provided on the left side surface of the heat insulating casing 20 to fix the heat insulating door 21 together with the handle 32 when the heat insulating door 21 is closed. Inside the heat insulating door 21, a heat insulating door 22 is provided as an inner door for enhancing the heat insulating property in the warehouse.

図３は、低温貯蔵庫１０の平面図である。断熱筐体２０は、例えば金属製の内箱４０と、内箱４０を覆うように設けられた金属製の外箱４１と、断熱筐体２０の断熱性を高めるため内箱４０及び外箱４１の間に充填された断熱材４２と、を含んで構成される。なお、内箱４０及び外箱４１は、冷凍物品等を出し入れするための開口面を前面に有している。   FIG. 3 is a plan view of the low-temperature storage 10. The heat insulating housing 20 includes, for example, a metal inner box 40, a metal outer box 41 provided so as to cover the inner box 40, and an inner box 40 and an outer box 41 for improving the heat insulating property of the heat insulating housing 20. And a heat insulating material 42 filled in between. In addition, the inner box 40 and the outer box 41 have an opening surface on the front side for taking in and out frozen articles and the like.

断熱扉２１は、内部に断熱材４５が充填された金属製の扉である。また、断熱扉２１の庫内側の周縁部には、断熱扉２１を閉じた際に庫内の気密性を高めるためのパッキン４６が設けられている。低温貯蔵庫１０は、圧力調整装置３０において空気の出入りがなく、断熱扉２１，２２が閉じられると密閉状態となる。   The heat insulating door 21 is a metal door filled with a heat insulating material 45 inside. Further, a packing 46 is provided on the inner peripheral edge of the heat insulating door 21 to enhance the airtightness in the warehouse when the heat insulating door 21 is closed. The low temperature storage 10 is in a sealed state when the pressure adjusting device 30 has no air in and out and the heat insulating doors 21 and 22 are closed.

ここで、図４を参照しつつ、圧力調整装置３０の詳細について説明する。図４は、分解された圧力調整装置３０と、圧力調整装置３０が取り付けられる断熱筐体２０の断熱壁の一部を示す斜視図である。   Here, the details of the pressure adjusting device 30 will be described with reference to FIG. FIG. 4 is a perspective view showing the disassembled pressure adjusting device 30 and a part of the heat insulating wall of the heat insulating casing 20 to which the pressure adjusting device 30 is attached.

圧力調整装置３０が取り付けられる断熱筐体２０の断熱壁には、庫外側から庫内側へと貫通する貫通孔５０が設けられている。圧力調整装置３０は、貫通孔５０に挿入され、庫外の空気を庫内へ流入させる経路を形成するための部材６０，６１と、空気を流入させる経路を開放または閉塞する栓部材６２と、を含んで構成される。   The heat insulating wall of the heat insulating housing 20 to which the pressure adjusting device 30 is attached is provided with a through hole 50 penetrating from the outer side to the inner side. The pressure adjusting device 30 is inserted into the through hole 50, and members 60 and 61 for forming a path for allowing air outside the box to flow into the box, a plug member 62 for opening or closing the path for flowing air, It is comprised including.

部材６０は、庫内側から貫通孔５０に挿入される鍔付きの筒状部材であり、外周面に雄螺子が形成された円筒部材７０及び、円筒部材７０の一端に一体形成された鍔部材７１からなる。   The member 60 is a cylindrical member with a flange that is inserted into the through-hole 50 from the inside of the warehouse, and a cylindrical member 70 having a male screw formed on the outer peripheral surface, and a flange member 71 integrally formed at one end of the cylindrical member 70. Consists of.

部材６１は、庫外側から貫通孔５０に挿入される鍔付きの筒状部材であり、円筒部材７２及び、円筒部材７２の一端に一体形成された鍔部材７３からなる。円筒部材７２の内周面には、円筒部材７０に形成された雄螺子と螺合させるための雌螺子が形成されている。   The member 61 is a tubular member with a flange that is inserted into the through-hole 50 from the outside of the warehouse, and includes a cylindrical member 72 and a flange member 73 that is integrally formed with one end of the cylindrical member 72. On the inner peripheral surface of the cylindrical member 72, a female screw for being screwed with a male screw formed on the cylindrical member 70 is formed.

図５は、部材６０，６１が断熱筐体２０の断熱壁に実際に取り付けられた状態を示す図である。円筒部材７０の雄螺子と、円筒部材７２の雌螺子とが螺合されることにより、鍔部材７１は、内箱４０の壁面に庫内側から当接し、鍔部材７３は、外箱４１の壁面に庫外側から当接する。このため、鍔部材７１，７３は、断熱筐体２１の断熱壁を、庫内側と庫外側から押圧するように結合する。また、円筒部材７０及び円筒部材７２の内側には、空気を流入させる経路として、庫内側と庫外側とを貫通する貫通孔８０が形成される。   FIG. 5 is a diagram illustrating a state in which the members 60 and 61 are actually attached to the heat insulating wall of the heat insulating casing 20. When the male screw of the cylindrical member 70 and the female screw of the cylindrical member 72 are screwed together, the flange member 71 comes into contact with the wall surface of the inner box 40 from the inner side, and the flange member 73 is fixed to the wall surface of the outer box 41. It contacts from the outside of the warehouse. For this reason, the eaves members 71 and 73 couple | bond so that the heat insulation wall of the heat insulation housing | casing 21 may be pressed from the warehouse inner side and the warehouse outer side. Further, inside the cylindrical member 70 and the cylindrical member 72, a through hole 80 penetrating the inner side and the outer side of the warehouse is formed as a path through which air flows.

栓部材６２は、貫通孔８０の庫外側の開口部８１を開放または閉塞する部材であり、図６に示すように、雄螺子７５、ツマミ７６、及びパッキン７７からなる。なお、ツマミ７６及びパッキン７７は、鍔部材に相当する。また、図６は栓部材６２の斜視図であり、図７は栓部材６２の側面図である。   The plug member 62 is a member that opens or closes the opening 81 on the outer side of the through hole 80, and includes a male screw 75, a knob 76, and a packing 77 as shown in FIG. 6. The knob 76 and the packing 77 correspond to a flange member. FIG. 6 is a perspective view of the plug member 62, and FIG. 7 is a side view of the plug member 62.

雄螺子７５は、図４に示すように、円筒部材７２の雌螺子に螺合される円柱状の螺子である。雄螺子７５の外周には、雄螺子７５が螺合される方向に沿って複数の切れ込み１００ａ〜１００ｄが形成されている。切れ込み１００ａ〜１００ｄの長さは、図７に示した雄螺子７５の長さｄと略等しい。したがって、切れ込み１００ａ〜１００ｄは、雄螺子７５の螺合方向の全長にわたって形成されていることになる。また、本実施形態では、等しい形状の切り込み１００ａ〜１００ｄが、雄螺子７５の外周に等間隔で入れられるように、雄螺子７５は形成される。   As shown in FIG. 4, the male screw 75 is a columnar screw that is screwed into the female screw of the cylindrical member 72. A plurality of cuts 100a to 100d are formed on the outer periphery of the male screw 75 along the direction in which the male screw 75 is screwed. The lengths of the cuts 100a to 100d are substantially equal to the length d of the male screw 75 shown in FIG. Therefore, the notches 100a to 100d are formed over the entire length of the male screw 75 in the screwing direction. Further, in the present embodiment, the male screw 75 is formed so that the cuts 100 a to 100 d having the same shape are inserted into the outer periphery of the male screw 75 at equal intervals.

ツマミ７６は、雄螺子７５の一端に雄螺子７５と一体に形成され、例えば雄螺子７５より直径が長い円柱形状を有する。また、ツマミ７６の雄螺子７５側の面には、雄螺子７５の外周に沿ってパッキン７７が貼り付けられている。   The knob 76 is formed integrally with the male screw 75 at one end of the male screw 75 and has, for example, a cylindrical shape whose diameter is longer than that of the male screw 75. A packing 77 is attached to the surface of the knob 76 on the male screw 75 side along the outer periphery of the male screw 75.

また、パッキン７７は、雄螺子７５が円筒部材７２の雌螺子に螺合されてねじ込まれることにより、鍔部材７３の開口の周囲の面（開口部８１が設けられた面）に当接する。したがって、図８に示すように、栓部材６２は、貫通孔８０を確実に閉塞するため、庫内から庫外への冷気が漏れることを防止できる。なお、図８は、貫通孔８０が閉塞された状態の圧力調整装置３０の断面図（図３のＡ−Ｂの断面を−Ｚ方向に見た際の断面図）である。但し、ここでは、圧力調整装置３０の断面構造を容易に理解できるよう、雄螺子７５の切りこみ１００ａ〜１００ｄのうち、１００ａのみを記載している。   Further, the packing 77 abuts on the surface around the opening of the flange member 73 (the surface on which the opening 81 is provided) when the male screw 75 is screwed into the female screw of the cylindrical member 72. Therefore, as shown in FIG. 8, since the plug member 62 reliably closes the through hole 80, it is possible to prevent cold air from leaking from the inside of the warehouse to the outside of the warehouse. 8 is a cross-sectional view of the pressure adjusting device 30 in a state where the through-hole 80 is closed (a cross-sectional view when the cross section AB in FIG. 3 is viewed in the −Z direction). However, here, only 100a is described among the notches 100a to 100d of the male screw 75 so that the cross-sectional structure of the pressure adjusting device 30 can be easily understood.

図９は、貫通孔８０が開放された状態の圧力調整装置３０の断面図である。なお、図９も、図８と同様に、図３のＡ−Ｂの断面を−Ｚ方向に見た際の断面図である。栓部材６２が回転されて雄螺子７５が緩められると、パッキン７７は鍔部材７３の開口の周囲の面に当接されていない状態となる。なお、雄螺子７５が緩められた状態では、雄螺子７５の一部は円筒部材７２の雌螺子に螺合されている。このような状態では、例えば切れ込み１００ａと、開口部８１の一部との間を遮るものは無い。したがって、例えば、庫内が陰圧状態である場合、雄螺子７５を緩めることにより庫外の空気を庫内へ流入させることが可能となる。つまり、雄螺子７５を緩めることにより陰圧状態を解消可能となる。   FIG. 9 is a cross-sectional view of the pressure adjusting device 30 in a state where the through hole 80 is opened. 9 is also a cross-sectional view taken along the line AB in FIG. 3 in the −Z direction, similarly to FIG. 8. When the plug member 62 is rotated and the male screw 75 is loosened, the packing 77 is not in contact with the surface around the opening of the flange member 73. When the male screw 75 is loosened, a part of the male screw 75 is screwed into the female screw of the cylindrical member 72. In such a state, for example, there is nothing that blocks between the notch 100a and a part of the opening 81. Therefore, for example, when the interior is in a negative pressure state, it is possible to allow the air outside the warehouse to flow into the interior by loosening the male screw 75. That is, the negative pressure state can be eliminated by loosening the male screw 75.

以上、本実施形態の低温貯蔵庫１０について説明した。栓部材６２の雄螺子７５には、切れ込み１００ａ〜１００ｄが形成されているため、本実施形態では、栓部材６２を取り外すことなく庫内の陰圧状態を解消できる。この結果、陰圧状態を解消する際に栓部材６２を落とす可能性は低くなり、利用者の負担を軽減できる。さらに、例えば、利用者が、切れ込みの無い栓部材で陰圧状態を解消できるような低温貯蔵庫を有している場合、切れ込みのある栓部材６２のみを新たに用意すれば、特別な工事等をすることなく、本実施形態と同様の効果を得ることが可能となる。   In the above, the low temperature storage 10 of this embodiment was demonstrated. Since the notches 100a to 100d are formed in the male screw 75 of the plug member 62, in this embodiment, the negative pressure state in the cabinet can be eliminated without removing the plug member 62. As a result, the possibility of dropping the plug member 62 when the negative pressure state is eliminated is reduced, and the burden on the user can be reduced. Furthermore, for example, when the user has a low-temperature storage that can eliminate the negative pressure state with a non-cut plug member, if only a plug member 62 with a cut is newly prepared, special construction or the like is performed. Without doing so, it is possible to obtain the same effect as the present embodiment.

また、例えば雄螺子７５の代わりに、円筒部材に切れ込みをいれた雄螺子を用いることも可能である。しかしながら、円筒部材に切れ込みを入れた雄螺子は、円筒部材の内部が空洞であるため、雄螺子としての部品強度が低下することがある。雄螺子７５では、円筒部材ではなく円柱部材を用いるため、雄螺子７５の部品強度を向上させることができる。   Further, for example, instead of the male screw 75, a male screw in which a cylindrical member is cut can be used. However, since the male screw having a cut in the cylindrical member has a hollow inside, the strength of the part as the male screw may be reduced. Since the male screw 75 uses a column member instead of a cylindrical member, the component strength of the male screw 75 can be improved.

また、例えば、雄螺子７５の切れ込みは、雄螺子７５の一部だけに形成しても本実施形態と同様の効果を得ることはできる。しかしながら、例えば、切れ込みが雄螺子７５の先端（ツマミ７６とは反対側の端）から一部しか入っていない場合、庫外と庫内とを連通させるために、利用者はツマミ７６を回しすぎ、栓部材６２を取り外してしまう可能性もある。雄螺子７５では、切れ込み１００ａは、雄螺子７５の螺合方向の全長にわたって形成されている。このため、利用者はツマミ７６を少し回して雄螺子７５を緩めるだけで、確実に陰圧状態を解消することが可能となる。   Further, for example, even if the notch of the male screw 75 is formed in only a part of the male screw 75, the same effect as in the present embodiment can be obtained. However, for example, when the notch is only partially inserted from the tip of the male screw 75 (the end opposite to the knob 76), the user turns the knob 76 too much in order to connect the outside of the box and the inside of the box. The plug member 62 may be removed. In the male screw 75, the cut 100a is formed over the entire length of the male screw 75 in the screwing direction. For this reason, the user can surely cancel the negative pressure state by turning the knob 76 a little to loosen the male screw 75.

また、雄螺子７５には、４つの切れ込み１００ａ〜１００ｄが形成されている。このため、例えば、１つしか切れ込みが無い場合と比較すると、より早く庫内の陰圧状態を解消できる。   The male screw 75 is formed with four cuts 100a to 100d. For this reason, for example, compared with the case where there is only one notch, the negative pressure state in the warehouse can be eliminated earlier.

また、例えば、庫内と庫外を連通させる貫通孔は、低温貯蔵庫１０の前面の断熱扉２１に設けることも可能である。しかし、一般的な低温貯蔵庫の断熱扉は、本実施形態と同様に２重構造（内扉及び外扉を備える構造）となっている。このため、前面に貫通孔を設ける場合、低温貯蔵庫の構造が複雑になる。低温貯蔵庫１０においては、貫通孔８０は、断熱筐体２０の側面の断熱壁に設けられているため、利用者の利便性を確保しつつ、低温貯蔵庫１０の構造を単純な構造とすることができる。   Further, for example, a through hole that allows communication between the inside and the outside of the storage can be provided in the heat insulating door 21 on the front surface of the low-temperature storage 10. However, the heat insulating door of a general low-temperature storage has a double structure (structure including an inner door and an outer door) as in the present embodiment. For this reason, when providing a through-hole in a front surface, the structure of a low-temperature storage is complicated. In the low temperature storage 10, since the through-hole 80 is provided in the heat insulation wall of the side surface of the heat insulation housing | casing 20, the structure of the low temperature storage 10 can be made into a simple structure, ensuring a user's convenience. it can.

なお、上記実施例は本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更、改良され得ると共に、本発明にはその等価物も含まれる。   In addition, the said Example is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes equivalents thereof.

１０ 低温貯蔵庫
２０ 断熱筐体
２１，２２ 断熱扉
３０ 圧力調整装置
３１ コントロールパネル
３２ ハンドル
３３ ロック部材
４０ 内箱
４１ 外箱
４２ 断熱材
４６，７７ パッキン
５０，８０ 貫通孔
６０，６１ 部材
６２ 栓部材
７０，７２ 円筒部材
７１，７３ 鍔部材
７５ 雄螺子
７６ ツマミ
８１ 開口部
１００ａ〜１００ｄ 切り込み DESCRIPTION OF SYMBOLS 10 Low temperature storage 20 Heat insulation housing | casing 21,22 Heat insulation door 30 Pressure control device 31 Control panel 32 Handle 33 Lock member 40 Inner box 41 Outer box 42 Heat insulation material 46,77 Packing 50,80 Through-hole 60,61 Member 62 Plug member 70 , 72 Cylindrical member 71, 73 Gutter member 75 Male screw 76 Knob 81 Opening portion 100a to 100d Notch

Claims (6)

開口面を有する断熱筐体と、前記開口面を開放または閉塞する断熱扉と、前記断熱筐体の内部に収納された物品を冷却する冷却装置と、前記断熱筐体を構成する断熱壁の庫外側から庫内側へ貫通し内周面に雌螺子が形成された貫通孔と、前記貫通孔の前記庫外側の開口部周囲に設けられた第１鍔部材と、を含んで構成される低温貯蔵庫に用いられ、前記開口部を開放または閉塞する栓部材であって、
前記雌螺子に螺合される雄螺子と、
前記雄螺子が前記雌螺子に螺合されることにより、前記第１鍔部材に当接して前記開口部を閉塞する第２鍔部材と、
前記第２鍔部材の前記第１鍔部材側に設けられたパッキンと、を備え、
前記第２鍔部材の外周部には、前記パッキンの前記第１鍔部材に当接する面よりも前記断熱筐体側に延伸した突出部が設けられ、
前記突出部の長さは、前記第１鍔部材の厚さよりも短く、
前記雄螺子は、
前記雄螺子が前記雌螺子に螺合されつつ、前記第１鍔部材に前記第２鍔部材が当接されていない状態において、前記開口部の一部を開放する切れ込みが外周の一部に形成されてなること、
を特徴とする栓部材。 A heat-insulating housing having an opening surface, a heat-insulating door that opens or closes the opening surface, a cooling device that cools articles stored in the heat-insulating housing, and a warehouse for heat-insulating walls that form the heat-insulating housing A low-temperature storage comprising a through-hole penetrating from the outside to the inside of the box and having a female screw formed on the inner peripheral surface thereof, and a first brim member provided around the opening of the through-hole on the outside of the box used, a plug member to open or close the opening portion,
A male screw screwed into the female screw;
By the male screw is screwed into the female screw, and a second flange member closing the opening in contact with the first flange member,
A packing provided on the first flange member side of the second flange member ,
The outer peripheral portion of the second flange member is provided with a protruding portion that extends toward the heat insulating housing than the surface that contacts the first flange member of the packing,
The length of the protrusion is shorter than the thickness of the first flange member,
The male screw is
A notch that opens a part of the opening is formed in a part of the outer periphery in a state where the second screw member is not in contact with the first hook member while the male screw is screwed to the female screw. Being done,
A plug member characterized by the above. 請求項１に記載の栓部材であって、
前記雄螺子は、
円柱部材の外周の一部に前記切れ込みが形成された螺子であること、
を特徴とする栓部材。 The plug member according to claim 1,
The male screw is
A screw in which the cut is formed in a part of the outer periphery of the cylindrical member;
A plug member characterized by the above. 請求項１または請求項２に記載の栓部材であって、
前記雄螺子は、
前記切れ込みが前記雄螺子の螺合方向の全長にわたって形成されてなること、
を特徴とする栓部材。 The plug member according to claim 1 or 2,
The male screw is
The notch is formed over the entire length of the male screw in the screwing direction;
A plug member characterized by the above. 請求項３に記載の栓部材であって、
前記雄螺子は、
前記切れ込みを複数有すること、
を特徴とする栓部材。 The plug member according to claim 3,
The male screw is
Having a plurality of the notches,
A plug member characterized by the above. 開口面を有する断熱筐体と、
前記開口面を開放または閉塞する断熱扉と、
前記断熱筐体の内部に収納された物品を冷却する冷却装置と、
前記断熱筐体を構成する断熱壁の庫外側から庫内側へ貫通し内周面に雌螺子が形成され
た貫通孔と、
前記貫通孔の前記庫外側の開口部周囲に設けられた第１鍔部材と、
前記雌螺子に螺合される雄螺子と、前記雄螺子が前記雌螺子に螺合されることにより、前記第１鍔部材に当接して前記開口部を閉塞する第２鍔部材と、前記第２鍔部材の前記第１鍔部材側に設けられたパッキンと、を含み、前記開口部を開放または閉塞する栓部材と、
を備え、
前記第２鍔部材の外周部には、前記パッキンの前記第１鍔部材に当接する面よりも前記断熱筐体側に延伸した突出部が設けられ、
前記突出部の長さは、前記第１鍔部材の厚さよりも短く、
前記雄螺子は、
前記雄螺子が前記雌螺子に螺合されつつ、前記第１鍔部材に前記第２鍔部材が当接されていない状態において、前記開口部の一部を開放する切れ込みが外周の一部に形成されてなること、
を特徴とする低温貯蔵庫。 An insulating housing having an opening surface;
A heat insulating door that opens or closes the opening surface;
A cooling device for cooling an article stored in the heat-insulating housing;
A through hole in which a female screw is formed on the inner peripheral surface penetrating from the outer side of the heat insulating wall constituting the heat insulating housing to the inner side,
A first flange member provided around an opening on the outside of the through hole;
A male screw is screwed into the female screw, by which the male screw is screwed into the female screw, and a second flange member closing the opening in contact with the first flange member, said first A plug member provided on the first flange member side of a two flange member, and a plug member that opens or closes the opening,
With
The outer peripheral portion of the second flange member is provided with a protruding portion that extends toward the heat insulating housing than the surface that contacts the first flange member of the packing,
The length of the protrusion is shorter than the thickness of the first flange member,
The male screw is
A notch that opens a part of the opening is formed in a part of the outer periphery in a state where the second screw member is not in contact with the first hook member while the male screw is screwed into the female screw. Being done,
Low temperature storage characterized by. 請求項５に記載の低温貯蔵庫であって、
前記貫通孔は、
前記断熱筐体の側面の前記断熱壁に設けられていること、
を特徴とする低温貯蔵庫。 The cold storage according to claim 5,
The through hole is
Being provided on the heat insulating wall on the side surface of the heat insulating housing;
Low temperature storage characterized by.
JP2010242447A 2010-10-28 2010-10-28 Plug member, low temperature storage Active JP5671675B2 (en)

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US13/283,814 US20120103992A1 (en) 2010-10-28 2011-10-28 Plug member and low-temperature storage
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WO2017154733A1 (en) * 2016-03-11 2017-09-14 パナソニックヘルスケアホールディングス株式会社 Ultra-low temperature freezer
JPWO2017154733A1 (en) * 2016-03-11 2018-10-04 Ｐｈｃホールディングス株式会社 Ultra-low temperature freezer
US10627155B2 (en) 2016-03-11 2020-04-21 Phc Holdings Corporation Ultra-low temperature freezer

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EP2447635B1 (en) 2020-06-17
KR20120044887A (en) 2012-05-08
CN102466384A (en) 2012-05-23
CN102466384B (en) 2014-09-17
JP2012093055A (en) 2012-05-17
EP2447635A3 (en) 2018-05-30
KR101396719B1 (en) 2014-05-19
US20120103992A1 (en) 2012-05-03

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