JPS6129013Y2 - - Google Patents
Info
- Publication number
- JPS6129013Y2 JPS6129013Y2 JP1978061451U JP6145178U JPS6129013Y2 JP S6129013 Y2 JPS6129013 Y2 JP S6129013Y2 JP 1978061451 U JP1978061451 U JP 1978061451U JP 6145178 U JP6145178 U JP 6145178U JP S6129013 Y2 JPS6129013 Y2 JP S6129013Y2
- Authority
- JP
- Japan
- Prior art keywords
- closing
- partition wall
- hole
- compartment
- closing disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005192 partition Methods 0.000 claims description 24
- 238000009423 ventilation Methods 0.000 claims description 21
- 239000012530 fluid Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Safety Valves (AREA)
Description
【考案の詳細な説明】
本考案は冷蔵庫、冷凍庫や保冷倉庫等の隔室の
壁に装備され、扉閉鎖時の急激な内圧の上昇を軽
減するため隔室内部の空気を外部に放出したり、
扉の開放操作を容易に行なうため隔室外部より空
気を取入れたりするのに使用される隔室用通風機
に関するものであり、常態においてはこの通風機
の通気口は閉鎖されている。[Detailed description of the invention] This invention is installed on the walls of compartments in refrigerators, freezers, cold storage warehouses, etc., and releases the air inside the compartment to the outside in order to reduce the sudden increase in internal pressure when the door is closed. ,
This relates to a ventilator for a compartment that is used to take in air from outside the compartment in order to easily open the door, and the vent of this ventilator is normally closed.
特開昭51−63057号公報に記載された従来の通
風機では、一対の扇形状開口より成る第１流体口
と同じく一対の扇形状開口より成る第２流体口が
同一円周上に交互に配置されているため、第１流
体口を閉塞する第１閉鎖部材と第２流体口を閉塞
する第２閉鎖部材は、他方の閉鎖部材及び流体口
に対して回動してはならない。閉鎖部材の回動を
阻止し、流体口に対して所定の整合状態に保持す
るため、従来の通風機では矩形断面の案内軸を採
用し、この案内軸を第１閉鎖部材、仕切壁及び第
２閉鎖部材の各矩形軸孔に嵌挿している。そし
て、隔室の内圧の増減に対応して第１閉鎖部材、
第２閉鎖部材が作動する際には、案内軸と軸孔が
面接触することになり、摩擦抵抗が大である。こ
のように従来の通風機では、面接触による摩擦抵
抗があるため、隔室の内圧変化に敏感に追随した
閉鎖部材の迅速な作動を期待できなかつた。 In the conventional ventilator described in Japanese Patent Application Laid-Open No. 51-63057, a first fluid port consisting of a pair of fan-shaped openings and a second fluid opening consisting of a pair of fan-shaped openings are arranged alternately on the same circumference. Due to the arrangement, the first closing member closing the first fluid port and the second closing member closing the second fluid port must not be able to pivot relative to the other closing member and the fluid port. In order to prevent rotation of the closure member and to maintain it in a predetermined alignment with the fluid inlet, conventional ventilators employ a guide shaft of rectangular cross section which is connected to the first closure member, the partition wall and the first 2 is inserted into each rectangular shaft hole of the closing member. and a first closing member in response to an increase or decrease in the internal pressure of the compartment;
When the second closing member operates, the guide shaft and the shaft hole come into surface contact, resulting in large frictional resistance. As described above, in the conventional ventilator, due to the frictional resistance caused by the surface contact, it was not possible to expect the closing member to act quickly and sensitively follow changes in the internal pressure of the compartment.
従つて本考案の目的は、案内軸と軸孔間の摩擦
抵抗を小さくすることによつて、隔室の内圧変化
に敏感に追随動作する通風機を提供することであ
る。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a ventilator that sensitively follows changes in the internal pressure of a compartment by reducing the frictional resistance between the guide shaft and the shaft hole.
更に本考案の目的は、冷蔵庫の容積等により必
要に応じて動作圧を調整、変更できる通風機を提
供することである。 A further object of the present invention is to provide a ventilator whose operating pressure can be adjusted and changed as necessary depending on the volume of the refrigerator.
以下、図面に基いて説明すると、本考案の隔室
用通風機は、隔室の壁１に設けた開口２に装着さ
れるケーシング３と、隔室の内部と外部を仕切る
仕切壁４と、仕切壁４の外面側に配置された第１
閉鎖円板５と、仕切壁４の内面側に配置された第
２閉鎖円板６と、第１閉鎖円板５、仕切壁４及び
第２閉鎖円板６の各中心部に設けた円形軸孔７、
８及び９に摺動自在に遊嵌され、一方の閉鎖円板
と当接する抜止め部１０を一端に設けた丸棒状の
案内軸１１と案内軸１１の他端ねじ棒部１１ａに
螺合されたナツト１２又はこれに受止められた座
板２６と他方の閉鎖円板との間に装入され、各閉
鎖円板を仕切壁４の各側面に圧接させるコイルバ
ネ１３とから成るものである。そして、前記仕切
壁４には、前記軸孔８含む支骨部１４を残して軸
孔８の外側に円形状の第２通気口１７を同心に設
けると共に、中間に環状の支骨部１６を残して第
２通気口１７の外側に円形状の第１通気口１５を
同心に設け、第１閉鎖円板５には、前記軸孔７を
含む支骨部１８を残して前記第２通気口１７と符
合した開口１９を設け、第１閉鎖円板５と第２閉
鎖円板６によつてそれぞれ第１通気口１５と第２
通気口１７を閉塞するようにしている。 Hereinafter, referring to the drawings, the ventilation fan for a compartment according to the present invention includes a casing 3 installed in an opening 2 provided in a wall 1 of the compartment, a partition wall 4 that partitions the inside and outside of the compartment. The first
A closing disk 5, a second closing disk 6 disposed on the inner surface of the partition wall 4, and a circular shaft provided at the center of each of the first closing disk 5, the partition wall 4, and the second closing disk 6. hole 7,
A round bar-shaped guide shaft 11 is slidably fitted into the guide shafts 8 and 9 and has a retaining portion 10 at one end that comes into contact with one of the closing discs, and the other end of the guide shaft 11 is screwed to a threaded rod portion 11a. The coil spring 13 is inserted between the nut 12 or the seat plate 26 received by the nut 12 and the other closing disk, and presses each closing disk against each side of the partition wall 4. In the partition wall 4, a circular second vent 17 is provided concentrically on the outside of the shaft hole 8, leaving the support portion 14 including the shaft hole 8, and an annular support portion 16 is provided in the middle. A circular first vent 15 is provided concentrically outside the second vent 17, and a support portion 18 including the shaft hole 7 is left in the first closing disc 5, and the second vent 17 is disposed concentrically outside the second vent 17. An opening 19 corresponding to the opening 17 is provided, and the first closing disc 5 and the second closing disc 6 respectively open the first ventilation opening 15 and the second opening 19.
The vent 17 is closed.
図示の実施例では、案内軸１１は、軸孔に摺接
する部分が表面滑らかな丸棒であり、その外端の
鍔状の抜止め部１０は第１閉鎖円板５の外側面に
当接している。前記ねじ棒部１１ａは、案内軸主
体部よりも小径になつている。コイルバネ１３の
内端はねじ棒部１１ａに嵌めた座板２６に圧接
し、この座板２６はねじ棒部１１ａに螺合したナ
ツト１２によつて抜脱を阻止されている。バネ１
３の外端は座板２５を介して第２閉鎖円板６の内
側面を押圧している。前記座板２５、２６は六角
形状であり、コイルバネ１３が軸孔と同軸上に正
確に配置されるよう、一辺置きに３個の位置決め
爪片２７を突設してある。バネ１３の端部は爪片
２７の内側に嵌込まれる。第１通気口１５と第２
通気口１７は、開口面積が同じになるようにその
直径と支骨部の幅が決定される。主体部が短筒状
のケーシング３は、その仕切壁４が前記開口２の
内部に来るよう開口２に嵌着され、ルーバー式内
蓋２１と一緒にビス２２で壁１に固着されてい
る。ルーバー式外蓋２３が開口２の外端部に嵌着
され、ビス２４によつて壁１に固着されている。
これらルーバー式の内蓋２１と外蓋２３には必要
に応じてスクリーンが装着される。本例では、隔
室の内部は第１図において壁１の右側、隔室の外
部は壁１の外側の空間を意味している。 In the illustrated embodiment, the guide shaft 11 is a round bar with a smooth surface at the portion that slides into the shaft hole, and the collar-shaped retaining portion 10 at the outer end abuts against the outer surface of the first closing disc 5. ing. The threaded rod portion 11a has a smaller diameter than the main body portion of the guide shaft. The inner end of the coil spring 13 is pressed against a seat plate 26 fitted to the threaded rod portion 11a, and this seat plate 26 is prevented from being removed by a nut 12 screwed onto the threaded rod portion 11a. Spring 1
The outer end of 3 presses against the inner surface of the second closing disk 6 via the seat plate 25. The seat plates 25 and 26 have a hexagonal shape, and three positioning claw pieces 27 are protruded from every other side so that the coil spring 13 is accurately arranged coaxially with the shaft hole. The end of the spring 13 is fitted inside the claw piece 27. The first vent 15 and the second
The diameter and the width of the support portion of the vent hole 17 are determined so that the opening area is the same. A casing 3 having a short cylindrical main body is fitted into the opening 2 so that its partition wall 4 is located inside the opening 2, and is fixed to the wall 1 together with a louvered inner lid 21 with screws 22. A louvered outer cover 23 is fitted onto the outer end of the opening 2 and fixed to the wall 1 with screws 24.
A screen is attached to these louvered inner lid 21 and outer lid 23 as necessary. In this example, the inside of the compartment means the right side of the wall 1 in FIG. 1, and the outside of the compartment means the space outside the wall 1.
この通風機では、扉の押し閉めによつて隔室の
内圧が増大すると、第５図に示したように第２閉
鎖円板６が仕切壁４の前記支骨部１４及び１６の
内側面に押付けられ、第２通気口１７の閉塞状態
が維持されている一方で、第１閉鎖円板５が左側
に押されて第１通気口１５が開放されるため、隔
室内部の空気の一部が第１通気口１５を通つて外
部に放出され、内圧が減少する。このとき、案内
軸１１は第１閉鎖円板５と一緒に移動し、案内軸
１１は仕切壁４の軸孔と第２閉鎖円板６の軸孔９
に摺接する。これとは反対に、扉の引き開きによ
つて隔室内に負圧が生じたときには、第６図に示
したように第１閉鎖円板５が仕切壁主体部と前記
支骨部１６の外側面に押し付けられ、第１通気口
１５の閉塞状態が維持されている一方で、第２閉
鎖円板６が右側に押されて、第２通気口１７が開
放されるため、隔室内部には第２通気口１７を通
つて外部から空気が流入することになる。この場
合には、案内軸１１は移動せず、第２閉鎖円板６
が案内軸１１に沿つて移動するだけであるため、
案内軸１１は第２閉鎖円板６の軸孔９と摺接す
る。いずれにおいても、隔室の内圧が所定値まで
回復したとき、第１閉鎖円板５、案内軸１１、第
２閉鎖円板６は前記バネ１３の弾撥力によつて原
位置に復帰し、通気口は全て閉鎖される。 In this ventilator, when the internal pressure of the compartment increases by pushing the door closed, the second closing disk 6 is pressed against the inner surface of the support ribs 14 and 16 of the partition wall 4 as shown in Fig. 5, and the second ventilation hole 17 is kept closed, while the first closing disk 5 is pressed to the left and the first ventilation hole 15 is opened, so that part of the air inside the compartment is discharged to the outside through the first ventilation hole 15, and the internal pressure decreases. At this time, the guide shaft 11 moves together with the first closing disk 5, and the guide shaft 11 passes through the shaft hole of the partition wall 4 and the shaft hole 9 of the second closing disk 6.
On the other hand, when negative pressure is generated in the compartment by pulling the door open, the first closing disk 5 is pressed against the outer surface of the partition wall main body and the support frame 16 as shown in Fig. 6, and the first ventilation hole 15 is kept closed, while the second closing disk 6 is pressed to the right, opening the second ventilation hole 17, so that air flows into the compartment from the outside through the second ventilation hole 17. In this case, the guide shaft 11 does not move, and the second closing disk 6
Since the guide shaft 11 only moves along the guide shaft 11,
The guide shaft 11 is in sliding contact with the shaft hole 9 of the second closing disk 6. In either case, when the internal pressure of the compartment is restored to a predetermined value, the first closing disk 5, the guide shaft 11 and the second closing disk 6 are returned to their original positions by the resilience of the spring 13, and all the ventilation holes are closed.
上記のように本考案の隔室用通風機では、仕切
壁４の第１通気口１５と第２通気口１７は中央の
軸孔８と同心に設けた円形状のものであり、これ
を第１閉鎖円板５と第２閉鎖円板６によつて閉塞
するようにしたものであるため、第１閉鎖円板５
と第２閉鎖円板６の相対的な回動を規制する必要
がなく、単に第１通気口１５、第２通気口１７に
対してそれぞれ第１閉鎖円板５、第２閉鎖円板６
が不整合とならないように第１閉鎖円板５、第２
閉鎖円板６を仕切壁４に対して位置決めするだけ
でよいから、第１閉鎖円板５、仕切壁４及び第２
閉鎖円板６の各中心部に設ける軸孔７、８及び９
は矩形にする必要が全くなく、丸棒状の案内軸１
１を遊嵌し得る直径の円形孔とすることができ
る。 As described above, in the compartment ventilation fan of the present invention, the first vent 15 and the second vent 17 of the partition wall 4 are circular shaped and are provided concentrically with the central shaft hole 8. Since it is designed to be closed by the first closing disc 5 and the second closing disc 6, the first closing disc 5
There is no need to restrict the relative rotation of the second closing disk 6 and the first closing disk 5 and the second closing disk 6 with respect to the first ventilation port 15 and the second ventilation port 17, respectively.
The first closing disk 5, the second
Since it is only necessary to position the closing disc 6 with respect to the partition wall 4, the first closing disc 5, the partition wall 4 and the second
Axial holes 7, 8 and 9 provided in each center of the closing disc 6
There is no need to make the guide shaft rectangular at all, and the guide shaft 1 is round bar-shaped.
1 can be made into a circular hole with a diameter that allows a loose fit.
このように案内軸が丸棒状であり、これが円形
の軸孔に遊嵌されているため、各閉鎖円板が作動
する際、案内軸と軸孔はその軸方向に沿つて線接
触して摺動することになり、面接触する従来の通
風機比べて案内軸と軸孔間の摩擦抵抗は充分に小
さくなり、隔室の内圧変化に敏感に追随して迅速
かつ的確に動作する隔室用通風機が得られるので
ある。 In this way, the guide shaft has a round bar shape and is loosely fitted into the circular shaft hole, so when each closing disc operates, the guide shaft and shaft hole slide in line contact along the axial direction. The frictional resistance between the guide shaft and the shaft hole is sufficiently smaller than that of conventional ventilators that have surface contact, and the compartment can move quickly and precisely by sensitively following changes in the compartment's internal pressure. This gives you a ventilator.
また、本考案の通風機では、案内軸１１の一端
の抜止め部１０を一方の閉鎖円板５に当接させ、
案内軸１１の他端ねじ棒部１１ａに螺合したナツ
ト１２又はこれに受止められた座板２６と他方の
閉鎖円板６との間にバネ１３を装入し、このバネ
１３によつて各閉鎖円板５、６を仕切壁４の内外
各側面に圧接させたものであるから、前記ナツト
１２を一端の抜止め部１０側により接近させる
と、コイルバネ１３の圧縮量が増大するため、第
１閉鎖円板５は隔室の内圧がより増大しなければ
第１通気口１５を開放せず、第２閉鎖円板６は隔
室の内圧がより減少しなければ第２通気口１７を
開放しない。反対に、ナツト１２を抜止め部１０
より後退させたときには、コイルバネ１３の圧縮
量が減少するため、第１閉鎖円板５と第２閉鎖円
板６はより小さな隔室内圧の増減に対しても追随
動作し、対応する第１通気口１５、第２通気口１
７を開放することになる。 Further, in the ventilator of the present invention, the retaining portion 10 at one end of the guide shaft 11 is brought into contact with one of the closing discs 5,
A spring 13 is inserted between the nut 12 screwed onto the threaded rod portion 11a at the other end of the guide shaft 11 or the seat plate 26 received by the nut 12 and the other closing disc 6. Since each of the closing discs 5 and 6 is pressed against the inner and outer sides of the partition wall 4, when the nut 12 is brought closer to the retaining part 10 at one end, the amount of compression of the coil spring 13 increases. The first closing disc 5 will not open the first vent 15 unless the internal pressure of the compartment increases further, and the second closing disc 6 will not open the second vent 17 unless the internal pressure of the compartment decreases further. Not open. On the contrary, the nut 12 is
When the coil spring 13 is moved back further, the amount of compression of the coil spring 13 decreases, so the first closing disc 5 and the second closing disc 6 move to follow even smaller increases and decreases in the compartment pressure, and the corresponding first ventilation Port 15, second vent 1
7 will be released.
このように本考案の通風機では各閉鎖円板５、
６の動作圧を適宜調整できるため、例えば緩慢な
扉の開閉によつては通気口が開放しないように設
定することができ、これによつて隔室内の冷気の
無駄な逸出を阻止することができる。また、構成
部品の形状寸法の変更を必要とせず、単にコイル
バネ１３の設定圧縮量を変更することのみによつ
て、動作圧の異なる各種の通風機を得ることがで
きるから、単一機の大量生産によるコストダウン
等、量産効果を期待できるのである。 In this way, in the ventilator of the present invention, each closing disc 5,
Since the operating pressure of 6 can be adjusted as appropriate, it is possible to set the vent so that it does not open, for example, due to slow opening and closing of the door, thereby preventing wasteful escape of cold air within the compartment. Can be done. In addition, it is possible to obtain various types of ventilation fans with different operating pressures by simply changing the set compression amount of the coil spring 13 without changing the shape and dimensions of the component parts. We can expect mass production effects such as cost reduction through production.
図面は本考案の一実施例を示し、第１図は通風
機の要部の分解斜視図、第２図は隔室の壁に装着
した通風機の縦断面図、第３図と第４図は通風機
の要部の正面図と背面図、第５図は第３図のＡ−
A′線断面図、第６図は第４図のＢ−B′線断面図
である。
１……隔室の壁、３……ケーシング、４……仕
切壁、５……第１閉鎖円板、６……第２閉鎖円
板、７……第１閉鎖円板の軸孔、８……仕切壁の
軸孔、９……第２閉鎖円板の軸孔、１０……抜止
め部、１１……案内軸、１２……ナツト、１３…
…コイルバネ、１４……支骨部、１５……第１通
気口、１６……環状の支骨部、１７……第２通気
口、１８……支骨部、１９……開口、２１……ル
ーバー式内蓋、２３……ルーバー式外蓋、２５，
２６……バネの座板、２７……位置決め爪片。
The drawings show one embodiment of the present invention, in which Fig. 1 is an exploded perspective view of the essential parts of a ventilator, Fig. 2 is a vertical sectional view of the ventilator mounted on the wall of a compartment, Figs. 3 and 4 are front and rear views of the essential parts of the ventilator, and Fig. 5 is a cross-sectional view of A-1 of Fig. 3.
6 is a cross-sectional view taken along line A' in FIG. 4, and FIG. 6 is a cross-sectional view taken along line B-B' in FIG. 4. 1: Wall of compartment, 3: Casing, 4: Partition wall, 5: First closing disk, 6: Second closing disk, 7: Shaft hole of first closing disk, 8: Shaft hole of partition wall, 9: Shaft hole of second closing disk, 10: Anti-pullout portion, 11: Guide shaft, 12: Nut, 13:
...coil spring, 14...support part, 15...first ventilation hole, 16...annular support part, 17...second ventilation hole, 18...support part, 19...opening, 21...louver type inner lid, 23...louver type outer lid, 25,
26...spring seat plate, 27...positioning claw piece.
Claims (1)
と、隔室の内部と外部を仕切る仕切壁と、仕切壁
の外側面に配置された第１閉鎖円板と、仕切壁の
内側面に配置された第２閉鎖円板と、第１閉鎖円
板、仕切壁及び第２閉鎖円板の各中心部に設けた
円形の軸孔に摺動自在に遊嵌され、一方の閉鎖円
板と当接する抜止め部を一端に設けた丸棒状の案
内軸と、案内軸の他端ねじ棒部に螺合したナツト
又はこれに受止められた座板と他方の閉鎖円板と
の間に装入され、各閉鎖円板を仕切壁の各側面に
圧接させるコイルバネとから成り、前記仕切壁に
は、前記軸孔を含む支骨部を残して円形状の第２
通気口を該軸孔の外側に同心に設けると共に、中
間に環状の支骨部を残して円形状の第１通気口を
第２通気口の外側に同心に設け、第１閉鎖円板に
は、前記軸孔を含む支骨部を残して前記第２通気
口と符合した開口を該軸孔と同心に設け、第１閉
鎖円板によつて第１通気口を閉塞し、第２閉鎖円
板によつて第２通気口を閉塞するようにした隔室
用通風機。 A casing attached to an opening provided in a wall of a compartment, a partition wall that partitions the inside and outside of the compartment, a first closing disc located on an outer surface of the partition wall, and a first closing disc located on an inner surface of the partition wall. The second closing disc is slidably and loosely fitted into circular shaft holes provided at the center of each of the first closing disc, the partition wall, and the second closing disc, and is in contact with one of the closing discs. Insert between a round bar-shaped guide shaft with a contacting retainer at one end, a nut screwed onto the threaded rod at the other end of the guide shaft, or a seat plate received by this and the other closing disc. and a coil spring that presses each closing disk against each side of the partition wall, and the partition wall has a circular second support portion including the shaft hole.
A ventilation hole is provided concentrically on the outside of the shaft hole, and a circular first ventilation hole is provided concentrically on the outside of the second ventilation hole with an annular support portion left in the middle, and the first closing disc includes , an opening aligned with the second vent hole is provided concentrically with the second vent hole, leaving a support portion including the shaft hole, the first vent hole is closed by a first closing disk, and a second closing disk is provided. A ventilation fan for a compartment in which a second ventilation port is closed by a plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978061451U JPS6129013Y2 (en) | 1978-05-10 | 1978-05-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978061451U JPS6129013Y2 (en) | 1978-05-10 | 1978-05-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54164167U JPS54164167U (en) | 1979-11-17 |
| JPS6129013Y2 true JPS6129013Y2 (en) | 1986-08-27 |
Family
ID=28962796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978061451U Expired JPS6129013Y2 (en) | 1978-05-10 | 1978-05-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6129013Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198544B (en) * | 2020-08-31 | 2023-03-14 | 宁德时代新能源科技股份有限公司 | Valve, battery and electric equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952542A (en) * | 1974-11-22 | 1976-04-27 | Kason Hardware Corporation | Ventilator |
-
1978
- 1978-05-10 JP JP1978061451U patent/JPS6129013Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952542A (en) * | 1974-11-22 | 1976-04-27 | Kason Hardware Corporation | Ventilator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54164167U (en) | 1979-11-17 |
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