JPH0463319B2 - - Google Patents
Info
- Publication number
- JPH0463319B2 JPH0463319B2 JP60294918A JP29491885A JPH0463319B2 JP H0463319 B2 JPH0463319 B2 JP H0463319B2 JP 60294918 A JP60294918 A JP 60294918A JP 29491885 A JP29491885 A JP 29491885A JP H0463319 B2 JPH0463319 B2 JP H0463319B2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchange
- header
- header tank
- plate
- notch
- 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 - Lifetime
Links
- 238000005192 partition Methods 0.000 claims description 25
- 239000012530 fluid Substances 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
- F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
- F28F9/0217—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions the partitions being separate elements attached to header boxes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、熱交換器、とくに空気の流れと、
たとえば伝熱媒体である水の流れとを対向流とす
ることにより、熱交換効率の向上を図ろうとする
熱交換器に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a heat exchanger, particularly an air flow,
For example, the present invention relates to a heat exchanger that attempts to improve heat exchange efficiency by making the flow of water, which is a heat transfer medium, counterflow.
この明細書において、前後とは、熱交換器の風
入側を前、これと反対側を後、左右とは後に向か
つていうものとする。 In this specification, "front and rear" refers to the inlet side of the heat exchanger as the front, the opposite side to the rear, and "left and right" refers to the rear.
従来の技術
この種の熱交換器としては、第２図に示すよう
に、上および下ヘツダタンク３１，３２と、両端
部がそれぞれ上および下ヘツダタンク３１，３２
に接続されかつ左右方向に並列に並んだ列を前後
に２つ形成している複数の熱交換管３３と、上ヘ
ツダタンク３１の内部を前列の熱交換管３３と後
列の熱交換管３３とがそれぞれ連通する前後２つ
の空間３４，３５に仕切つている仕切り板３６
と、後の空間３５に連通するように上ヘツダタン
ク３１に設けられている入口管３７および前の空
間３４に連通するようにヘツダリンク３１に設け
られている出口管３８とを備えているものが知ら
れている。BACKGROUND ART As shown in FIG. 2, this type of heat exchanger includes upper and lower header tanks 31 and 32, and both ends thereof
A plurality of heat exchange tubes 33 are connected to each other and form two front and rear rows arranged in parallel in the left and right direction, and inside the upper header tank 31, the heat exchange tubes 33 in the front row and the heat exchange tubes 33 in the rear row A partition plate 36 that partitions into two spaces 34 and 35 in the front and back that communicate with each other.
There is also an inlet pipe 37 provided in the upper header tank 31 so as to communicate with the rear space 35, and an outlet pipe 38 provided in the header link 31 so as to communicate with the front space 34. It is being
発明が解決しようとする課題
ところで、一般に熱交換器において熱交換効率
の向上を図るためには、上述のように両流体の流
れを対向流とすることの他に、限られたスペース
で熱交換管の断面積と表面積をできるだけ大きく
とることが必要である。そのためには、上述の各
別の２つの熱交換管の代わりに、１つの熱交換管
を用いることが考えられるが、そうすると、両流
体の流れを対向流とすることができなくなる。Problems to be Solved by the Invention Incidentally, in general, in order to improve the heat exchange efficiency in a heat exchanger, in addition to making the flows of both fluids counterflow as described above, it is necessary to perform heat exchange in a limited space. It is necessary to make the cross-sectional area and surface area of the tube as large as possible. To this end, it is conceivable to use one heat exchange tube instead of the two separate heat exchange tubes described above, but then it becomes impossible to make the flows of both fluids countercurrent.
この発明の目的は、熱交換流体の流れは対向流
であることは勿論、限られたスペースの中で熱交
換管の断面積と表面積を可及的に大きくとること
のできる熱交換器を提供することにある。 The purpose of this invention is to provide a heat exchanger in which the flow of heat exchange fluid is countercurrent, and the cross-sectional area and surface area of the heat exchange tube can be made as large as possible within a limited space. It's about doing.
問題点を解決するための手段
この発明による熱交換器は、左右方向に並列状
に配されている複数の熱交換管と、複数の熱交換
管の上端部が接続されたヘツダプレートを有する
上ヘツダタンクと、ヘツダタンク内を前後２つの
空間に仕切つている仕切り板と、後の空間に連通
するようにヘツダタンクに設けられている入口管
および前の空間に連通するようにヘツダタンクに
設けられている出口管とを備えている熱交換器に
おいて、熱交換管の内部に、隔壁によつて前後２
つの流体通路が形成され、熱交換管は、ヘツダプ
レートを貫通してヘツダタンク内に突出した上方
突出端部を有しており、上方突出端部に、両流体
通路の間を左右方向にのびかつ仕切り板の下縁部
をはめ入れた切欠きが形成され、切欠きの底面は
ヘツダプレートの上面と面一となされて、切欠き
の底面およびヘツダプレートの上面に、仕切り板
の下面がろう接されていることを特徴とするもの
である。Means for Solving the Problems The heat exchanger according to the present invention includes a plurality of heat exchange tubes arranged in parallel in the left-right direction, and an upper header tank having a header plate to which the upper ends of the plurality of heat exchange tubes are connected. and a partition plate that partitions the inside of the header tank into two spaces, front and rear, an inlet pipe provided in the header tank to communicate with the rear space, and an outlet pipe provided in the header tank to communicate with the front space. In a heat exchanger equipped with
The heat exchange tube has an upwardly protruding end that penetrates the header plate and protrudes into the header tank, and a partition that extends in the left-right direction between the two fluid passages is provided at the upwardly protruding end. A notch is formed into which the lower edge of the plate is fitted, the bottom of the notch is flush with the top of the header plate, and the bottom of the partition plate is soldered to the bottom of the notch and the top of the header plate. It is characterized by this.
作 用
この発明による熱交換器では、熱交換管の内部
に、隔壁によつて前後２つの流体通路が形成され
ているから、冒頭で説明した従来の熱交換器のよ
うに、２つの流体通路を２つの熱交換器で形成す
る場合と比較して、熱交換管の断面積と表面積が
大きくなる。Function In the heat exchanger according to the present invention, two fluid passages are formed inside the heat exchange tube by the partition walls, so that two fluid passages are formed in the heat exchanger according to the present invention, unlike the conventional heat exchanger described at the beginning. The cross-sectional area and surface area of the heat exchange tube are larger than when the heat exchange tube is formed using two heat exchangers.
また、熱交換管は、ヘツダプレートを貫通して
ヘツダタンク内に突出した上方突出端部を有して
おり、上方突出端部に、両流体通路の間を左右方
向にのびかつ仕切り板の下縁部をはめ入れた切欠
きが形成されているから、組立て時において、仕
切り板の位置決めが容易であるし、仕切り板が倒
れることがない。 Further, the heat exchange tube has an upwardly protruding end that penetrates the header plate and protrudes into the header tank. Since a notch is formed into which the partition plate is fitted, the partition plate can be easily positioned during assembly, and the partition plate will not fall over.
さらに、切欠きの底面はヘツダプレートの上面
と面一となされて、切欠きの底面およびヘツダプ
レートの上面に、仕切り板の下面がろう接されて
いるから、熱交換管およびヘツダプレートと、仕
切り板との間が確実にシールされている。 Furthermore, the bottom surface of the notch is flush with the top surface of the header plate, and the bottom surface of the partition plate is soldered to the bottom surface of the notch and the top surface of the header plate. The space between the two is securely sealed.
実施例
以下、この発明の実施例を第１図を参照して説
明する。Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIG.
第１図は、この発明による熱交換の上部を示す
ものであつて、下ヘツダタンクを図示を省略して
あるが、下ヘツダタンクの構成は、冒頭で述べた
従来の熱交換器のものと同一である。第１図にお
いて、風の流れ方向は矢印(A)で示されている。 Figure 1 shows the upper part of the heat exchanger according to the present invention, and the lower header tank is not shown, but the structure of the lower header tank is the same as that of the conventional heat exchanger mentioned at the beginning. be. In Figure 1, the direction of wind flow is indicated by an arrow (A).
熱交換器は、左右方向に長い直方体状ヘツダタ
ンク１１と、上端部がヘツダタンク１１に連通さ
れている複数の垂直並列状熱交換管１２と、ヘツ
ダタンク１１内を前後２つの空間１３，１４に仕
切つている仕切り板１５と、後の空間１４に連通
するようにヘツダタンク１１に設けられている入
口管１６および前の空間１３に連通するようにヘ
ツダタンク１１に設けられている出口管１７とを
備えている。 The heat exchanger includes a rectangular parallelepiped header tank 11 that is long in the left and right direction, a plurality of vertically parallel heat exchange tubes 12 whose upper ends communicate with the header tank 11, and the inside of the header tank 11 is partitioned into two spaces 13 and 14, front and rear. an inlet pipe 16 provided in the header tank 11 so as to communicate with the rear space 14, and an outlet pipe 17 provided in the header tank 11 so as to communicate with the front space 13. .
ヘツダタンク１１は、横断面逆Ｕ字状タンク本
体１８と、タンク本体１８の下縁部に設けられて
いるヘツダプレート１９とからなる。ヘツダプレ
ート１９には前後方向に長い楕円形の貫通孔２０
が左右方向に間隔をおいて並んだ複数か所に設け
られている。熱交換管１２は、貫通孔２０に丁度
はまり合う大きさの偏平状の周壁２１と、これの
内部に前後２つの流体通路１２ａ，１２ｂを形成
している隔壁２２とよりなる。熱交換管１２の上
端部２３をヘツダタンク１１内に突出させた状態
で熱交換管１２が貫通孔２０にはめ入れられてそ
の周縁部に接合されている。上方突出端部２３に
は、流体通路１２ａ，１２ｂの間を左右方向にの
びかつ仕切り板１７の下縁部をはめ入れた切欠き
２４が形成されている。仕切欠き２４の底面はヘ
ツダプレート１９の上面と面一である。仕切り板
１５は、その全体を図示しないが、ヘツダタンク
１１内の左右方向の長さに等しい長さと、ヘツダ
タンク１１内の高さに等しい高さを有する左右方
向に長い垂直板板状のものであつて、切欠き２４
を通されてヘツダプレート１９の上面で受けられ
ている。 The header tank 11 includes a tank body 18 having an inverted U-shaped cross section, and a header plate 19 provided at the lower edge of the tank body 18. The header plate 19 has an oval through hole 20 that is long in the front and back direction.
are provided at multiple locations lined up at intervals in the left and right direction. The heat exchange tube 12 is made up of a flat peripheral wall 21 that is sized to fit into the through hole 20, and a partition wall 22 that forms two front and rear fluid passages 12a and 12b inside the flat peripheral wall 21. The heat exchange tube 12 is fitted into the through hole 20 and joined to the peripheral edge thereof with the upper end 23 of the heat exchange tube 12 protruding into the header tank 11. A notch 24 is formed in the upwardly protruding end portion 23, extending in the left-right direction between the fluid passages 12a and 12b, and into which the lower edge of the partition plate 17 is fitted. The bottom surface of the partition cutout 24 is flush with the top surface of the header plate 19. Although not shown in its entirety, the partition plate 15 is a vertical plate-shaped member that is long in the left-right direction and has a length equal to the length in the left-right direction inside the header tank 11 and a height equal to the height inside the header tank 11. Notch 24
It is passed through and received on the upper surface of the header plate 19.
いま、熱交換器の組立手順について簡単に説明
しておくと、まずヘツダプレート１９に各貫通孔
２０を、各熱交換管１２の上方突出端部２３に切
欠き２４をそれぞれあらかじめ形成しておいて、
各貫通孔２０に熱交換管１２を挿入してその上方
突出端部２３を突出させる。ついで上方突出端部
２３の切欠き２４に仕切り板１５の下縁部をはめ
入れてその上からタンク本体１８をヘツダプレー
ト１９に被せる。この後は、通常よく知らている
ろう接の手法により、熱交換管１２、ヘツダプレ
ート１９、タンク本体１８および仕切板１５の接
している部分同しを接合すればよい。 Now, to briefly explain the assembly procedure of the heat exchanger, first, each through hole 20 is formed in the header plate 19 and the notch 24 is formed in the upwardly protruding end portion 23 of each heat exchange tube 12. ,
A heat exchange tube 12 is inserted into each through hole 20, and its upwardly protruding end portion 23 is made to protrude. Next, the lower edge of the partition plate 15 is fitted into the notch 24 of the upwardly projecting end 23, and the tank body 18 is placed over the header plate 19 from above. Thereafter, the contacting portions of the heat exchange tube 12, header plate 19, tank body 18, and partition plate 15 may be joined by a well-known brazing method.
熱交換器に入口管１６により導き入れられた流
体は熱交換管１２の隔壁２２の後がわの通路を下
向きに流れ、下ヘツダタンク内において反転して
その後は隔壁２２の前がわの通路を上向きに流れ
ることになり、この上下の流れは空気の流れに対
して対向流である。 The fluid introduced into the heat exchanger by the inlet pipe 16 flows downward through the passage behind the bulkhead 22 of the heat exchange tube 12, reverses in the lower header tank, and then flows through the passage in front of the bulkhead 22. The flow will be upward, and this up-and-down flow is countercurrent to the air flow.
発明の効果
この発明によれば、冒頭で説明した従来の熱交
換器のように、２つの流体通路を２つの熱交換器
で形成する場合と比較して、熱交換管の断面積と
表面積が大きくなるから、熱交換効率の向上を図
ることができる。Effects of the Invention According to the present invention, the cross-sectional area and surface area of the heat exchange tube are reduced compared to the case where two fluid passages are formed by two heat exchangers like the conventional heat exchanger explained at the beginning. Since it becomes larger, it is possible to improve heat exchange efficiency.
また、組立て時において、仕切り板の位置決め
が容易であるし、仕切り板が倒れることがないか
ら、組立作業を容易に行うことができる。 Further, during assembly, the partition plates can be easily positioned and the partition plates will not fall over, so the assembly work can be easily performed.
さらに、熱交換管およびヘツダプレートと、仕
切り板との間が確実にシールされているから、シ
ール部からの洩れが無く、上記熱交換管の断面積
と表面積とが大きくなることと相俟つて、熱交換
効率の向上を図ることができる。 Furthermore, since the space between the heat exchange tube and header plate and the partition plate is reliably sealed, there is no leakage from the sealed portion, and the cross-sectional area and surface area of the heat exchange tube are increased. Heat exchange efficiency can be improved.
第１図はこの発明の実施例を示す破砕断面を含
む斜視図、第２図は従来例を示す垂直断面図であ
る。
１１……ヘツダタンク、１２……熱交換管、１
２ａ，１２ｂ……流体通路、１３，１４……空
間、１５……仕切り板、１６……入口管、１７…
…出口管、１９……ヘツダプレート、２０……貫
通孔、２２……隔壁、２３……上方突出端部、２
４……切り欠き。
FIG. 1 is a perspective view including a fractured cross section showing an embodiment of the present invention, and FIG. 2 is a vertical sectional view showing a conventional example. 11... Header tank, 12... Heat exchange tube, 1
2a, 12b...fluid passage, 13, 14...space, 15...partition plate, 16...inlet pipe, 17...
... Outlet pipe, 19 ... Header plate, 20 ... Through hole, 22 ... Partition wall, 23 ... Upper projecting end, 2
4...Notch.
Claims (1)
換管１２と、複数の熱交換管１２の上端部が接続
されたヘツダプレート１９を有する上ヘツダタン
ク１１と、ヘツダタンク１１内を前後２つの空間
１３，１４に仕切つている仕切り板１５と、後の
空間１４に連通するようにヘツダタンク１１に設
けられている入口管１６および前の空間１３に連
通するようにヘツダタンク１１に設けられている
出口管１７とを備えている熱交換器において、 熱交換管１２の内部に、隔壁２２によつて前後
２つの流体通路１２ａ，１２ｂが形成され、熱交
換管１２は、ヘツダプレート１９を貫通してヘツ
ダタンク１１内に突出した上方突出端部２３を有
しており、上方突出端部２３に、両流体通路１２
ａ，１２ｂの間を左右方向にのびかつ仕切り板１
５の下縁部をはめ入れた切欠き２４が形成され、
切欠き２４の底面はヘツダプレート１９の上面と
面一となされて、切欠き２４の底面およびヘツダ
プレート１９の上面に、仕切り板１５の下面がろ
う接されていることを特徴とする熱交換器。[Scope of Claims] 1. A plurality of heat exchange tubes 12 arranged in parallel in the left-right direction, an upper header tank 11 having a header plate 19 to which the upper ends of the plurality of heat exchange tubes 12 are connected, and an inner portion of the header tank 11. an inlet pipe 16 provided in the header tank 11 to communicate with the rear space 14, and an inlet pipe 16 provided in the header tank 11 to communicate with the front space 13. In the heat exchanger, two fluid passages 12 a and 12 b are formed in the heat exchange tube 12 , a front and a back by a partition wall 22 , and the heat exchange tube 12 has a header plate 19 . It has an upper protruding end 23 that penetrates and protrudes into the header tank 11, and both fluid passages 12 are connected to the upper protruding end 23.
The partition plate 1 extends in the left and right direction between a and 12b.
A notch 24 into which the lower edge of 5 is fitted is formed,
A heat exchanger characterized in that the bottom surface of the notch 24 is flush with the top surface of the header plate 19, and the bottom surface of the partition plate 15 is soldered to the bottom surface of the notch 24 and the top surface of the header plate 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29491885A JPS62153685A (en) | 1985-12-24 | 1985-12-24 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29491885A JPS62153685A (en) | 1985-12-24 | 1985-12-24 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62153685A JPS62153685A (en) | 1987-07-08 |
| JPH0463319B2 true JPH0463319B2 (en) | 1992-10-09 |
Family
ID=17813938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29491885A Granted JPS62153685A (en) | 1985-12-24 | 1985-12-24 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62153685A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2523779B2 (en) * | 1988-04-26 | 1996-08-14 | 松下電器産業株式会社 | Automatic playing device |
| JPH0749265Y2 (en) * | 1989-12-12 | 1995-11-13 | 株式会社ゼクセル | Heat exchanger tank structure |
| US5152339A (en) * | 1990-04-03 | 1992-10-06 | Thermal Components, Inc. | Manifold assembly for a parallel flow heat exchanger |
| JP2510252Y2 (en) * | 1990-06-20 | 1996-09-11 | 株式会社ゼクセル | Heat exchanger |
| JPH04203895A (en) * | 1990-11-30 | 1992-07-24 | Aisin Seiki Co Ltd | Heat exchanger |
| JPH0566073A (en) * | 1991-09-05 | 1993-03-19 | Sanden Corp | Multilayered heat exchanger |
| US5479985A (en) * | 1992-03-24 | 1996-01-02 | Nippondenso Co., Ltd. | Heat exchanger |
| US5318111A (en) * | 1993-06-22 | 1994-06-07 | Ford Motor Company | Integral baffle assembly for parallel flow heat exchanger |
| US5632331A (en) * | 1993-09-30 | 1997-05-27 | Sanden Corporation | Heat exchanger |
| EP1167911B1 (en) * | 2000-06-26 | 2013-12-25 | Keihin Thermal Technology Corporation | Evaporator |
| AU2002360056A1 (en) | 2001-12-21 | 2003-07-09 | Behr Gmbh And Co. | Heat exchanger, particularly for a motor vehicle |
| JP4095818B2 (en) * | 2002-03-27 | 2008-06-04 | 株式会社日本クライメイトシステムズ | Heat exchanger |
| DE10226753A1 (en) * | 2002-06-14 | 2004-01-08 | Behr Gmbh & Co. | heat exchangers |
| FR2864610B1 (en) * | 2003-12-24 | 2006-12-22 | Valeo Thermique Moteur Sa | HEAT EXCHANGER TUBE HAVING TWO CIRCULATING CURRENTS AND HEAT EXCHANGER HAVING SUCH TUBES |
| US8596339B2 (en) * | 2008-04-17 | 2013-12-03 | Dana Canada Corporation | U-flow stacked plate heat exchanger |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842780U (en) * | 1981-09-16 | 1983-03-22 | リコーエレメックス株式会社 | clock base plate |
-
1985
- 1985-12-24 JP JP29491885A patent/JPS62153685A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842780U (en) * | 1981-09-16 | 1983-03-22 | リコーエレメックス株式会社 | clock base plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62153685A (en) | 1987-07-08 |
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