JP2896760B2 - Method for producing synthetic resin float for vaporizer - Google Patents

Method for producing synthetic resin float for vaporizer

Info

Publication number
JP2896760B2
JP2896760B2 JP34991295A JP34991295A JP2896760B2 JP 2896760 B2 JP2896760 B2 JP 2896760B2 JP 34991295 A JP34991295 A JP 34991295A JP 34991295 A JP34991295 A JP 34991295A JP 2896760 B2 JP2896760 B2 JP 2896760B2
Authority
JP
Japan
Prior art keywords
cup
cup member
hot plate
float
open end
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 - Fee Related
Application number
JP34991295A
Other languages
Japanese (ja)
Other versions
JPH09177612A (en
Inventor
勝彦 藤田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Keihin Corp
Original Assignee
Keihin Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Keihin Corp filed Critical Keihin Corp
Priority to JP34991295A priority Critical patent/JP2896760B2/en
Publication of JPH09177612A publication Critical patent/JPH09177612A/en
Application granted granted Critical
Publication of JP2896760B2 publication Critical patent/JP2896760B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/826—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined
    • B29C66/8266—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined using fluid pressure directly acting on the parts to be joined
    • B29C66/82661—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined using fluid pressure directly acting on the parts to be joined by means of vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、合成樹脂材料によって
形成される第１カップ部材と第２カップ部材の各開口端
部とを、加熱溶融したのちに圧接して中空状のフロート
を形成するフロートの製造方法に関し、そのうち特に、
機関に供給する混合気の量及び濃度を制御する気化器に
おいて、浮子室内に一定液面を形成する定液面制御装置
に用いるに好適な気化器の合成樹脂製フロートの製造方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention forms a hollow float by heating and melting a first cup member and an opening end of a second cup member which are formed of a synthetic resin material and then pressing them. Regarding the method of manufacturing float, among them,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a synthetic resin float of a vaporizer suitable for use in a constant liquid level control device for forming a constant liquid level in a float chamber in a vaporizer for controlling the amount and concentration of a gas mixture supplied to an engine.

【０００２】[0002]

【従来の技術】従来のフロートの製造方法は、特開昭５
０−１１７５号公報に示される。該公報において第１図
に示される第１例について、図４，図５，図６によって
説明する。１は合成樹脂材料によって形成された第１カ
ップ部材であり、底部１Ａから左方の第１開口端部１Ｂ
に向かう有底カップ状に形成される。２は合成樹脂材料
によって形成された第２カップ部材であり、底部２Ａか
ら右方の第２開口端部２Ｂに向かう有底カップ状に形成
される。この第１開口端部１Ｂと第２開口端部２Ｂの対
向面は、同一平面形状に形成される。2. Description of the Related Art A conventional float manufacturing method is disclosed in
No. 0-1175. A first example shown in FIG. 1 in this publication will be described with reference to FIGS. Reference numeral 1 denotes a first cup member formed of a synthetic resin material, and a first opening end 1B leftward from the bottom 1A.
It is formed in the shape of a bottomed cup toward. Reference numeral 2 denotes a second cup member formed of a synthetic resin material, and is formed in a bottomed cup shape from the bottom 2A to the right second opening end 2B. Opposing surfaces of the first opening end 1B and the second opening end 2B are formed in the same plane shape.

【０００３】そして、前記第１カップ部材１と第２カッ
プ部材２とは熱板溶着機Ｎによって以下の如く溶着され
る。３は、ベッド４上に配置された第１スライド装置で
あり、エアシリンダー、油圧シリンダーの如き駆動部Ｐ
の出力軸Ｐ１の端部に第１治具５が一体的に取着され
る。この第１治具５の左端面５Ａには、第１カップ部材
収納凹部５Ｂが凹設され、この第１カップ部材収納凹部
５Ｂ内に第１カップ部材１が収納配置され、このとき第
１開口端部１Ｂは左端面５Ａより左方へ突出する。６
は、ベッド４上に配置された第２スライド装置であり、
エアシリンダー、油圧シリンダーの如き駆動部Ｐの出力
軸Ｐ１の端部に第２治具７が一体的に取着される。この
第２治具７の右端面７Ａには、第２カップ部材収納凹部
７Ｂが凹設され、この第２カップ部材収納凹部７Ｂ内に
第２カップ部材２が収納配置され、このとき第２開口端
部２Ｂは右端面７Ａより右方へ突出する。The first cup member 1 and the second cup member 2 are welded by a hot plate welding machine N as follows. Reference numeral 3 denotes a first slide device disposed on the bed 4, and a driving unit P such as an air cylinder or a hydraulic cylinder.
The first jig 5 is integrally attached to the end of the output shaft P1. On the left end face 5A of the first jig 5, a first cup member accommodating recess 5B is recessed, and the first cup member 1 is accommodated and disposed in the first cup member accommodating recess 5B. The end 1B protrudes leftward from the left end face 5A. 6
Is a second slide device arranged on the bed 4,
A second jig 7 is integrally attached to an end of the output shaft P1 of the driving unit P such as an air cylinder or a hydraulic cylinder. A second cup member accommodating recess 7B is recessed in the right end face 7A of the second jig 7, and the second cup member 2 is accommodated and arranged in the second cup member accommodating recess 7B. The end 2B projects rightward from the right end face 7A.

【０００４】かかる状態において、第１治具５に装着さ
れた第１カップ部材１は、駆動部Ｐによって水平方向に
往復移動し、第２治具７に装着された第２カップ部材２
は駆動部Ｐによって水平方向に往復移動する。In such a state, the first cup member 1 mounted on the first jig 5 reciprocates in the horizontal direction by the drive unit P, and the second cup member 2 mounted on the second jig 7
Is reciprocated in the horizontal direction by the driving unit P.

【０００５】８は、電気的に加熱される熱板であり、第
１カップ部材１の第１開口端部１Ｂと第２カップ部材２
の開口端部２Ｂとの間の対向面間に配置される第１状態
と、両開口端部１Ｂ，２Ｂの対向面間から除かれる第２
状態と、の位置制御が選択的に成される。[0005] Reference numeral 8 denotes a hot plate which is electrically heated, and comprises a first opening end 1B of the first cup member 1 and a second cup member 2;
And a second state removed from between the opposing surfaces of the two open ends 1B and 2B.
The state and the position control are selectively performed.

【０００６】そして、カップ溶融工程において、第１カ
ップ部材１の第１開口端部１Ｂと、第２カップ部材２の
第２開口端部２Ｂとを第１及び第２スライド装置３，６
によって熱板８に向けて一定時間押圧し、両開口端部１
Ｂ，２Ｂを一定量溶融する。次いで、熱板離反工程にお
いて、第１カップ部材１の第１開口端部１Ｂと、第２カ
ップ部材２の第２開口端部２Ｂと、を熱板８より離反す
るとともに熱板８を両開口端部の対向面間から除く。そ
して、カップ接合工程において、溶融状態にある第１カ
ップ部材１の第１開口端部１Ｂと、第２カップ部材２の
第２開口端部２Ｂとを圧接し、両開口端部を接合し、も
って密閉状のフロートＦが形成される。Then, in the cup melting step, the first opening end 1 B of the first cup member 1 and the second opening end 2 B of the second cup member 2 are connected to the first and second sliding devices 3, 6.
To the hot plate 8 for a certain period of time.
B and 2B are melted in fixed amounts. Next, in the hot plate separating step, the first open end 1B of the first cup member 1 and the second open end 2B of the second cup member 2 are separated from the hot plate 8 and the hot plate 8 is opened at both ends. Excluded from between the facing surfaces at the ends. Then, in the cup joining step, the first open end 1B of the first cup member 1 in the molten state and the second open end 2B of the second cup member 2 are pressed against each other to join both open ends, Thus, a sealed float F is formed.

【０００７】又、該公報の第２図に示される第２例につ
いて説明すると、カップ溶融工程は、両カップ部材の対
向する開口端部の間に、開口端部と無接触的に熱板を配
置し、熱板と両開口端部との間に所定間隙を保ちなが
ら、両開口端部を熱板からの輻射熱によって溶融したも
のである。[0007] Further, a second example shown in Fig. 2 of the publication will be described. In the cup melting step, a hot plate is placed between the opposite open ends of the cup members without contact with the open ends. The two open ends are melted by radiant heat from the hot plate, while maintaining a predetermined gap between the hot plate and the two open ends.

【０００８】[0008]

【発明が解決しようとする課題】前記第１例によると、
熱板８に第１カップ部材１の開口端部１Ｂが当接して一
定時間押圧されるカップ溶融工程において、第１カップ
部材１の開口は熱板８によって閉塞され、第１カップ部
材１の内方に密閉室１Ｃが形成されること、及び密閉室
１Ｃ内の空気が熱板８によって膨張し、密閉室１Ｃ内の
圧力が大気圧に比較して上昇すること、から、第１カッ
プ部材１の溶融された第１開口端部１Ｂは熱板８に沿っ
て外側方に向かって押し出される。この状態は図５に示
される。尚、第２カップ部材２にあっても、第１カップ
部材１と同様に密閉室２Ｃが形成され、その第２開口端
部２Ｂは熱板８に沿って外側方に向かって押し出され
る。According to the first example,
In the cup melting step in which the opening end 1B of the first cup member 1 abuts on the hot plate 8 and is pressed for a certain time, the opening of the first cup member 1 is closed by the hot plate 8, and Since the closed chamber 1C is formed on the other side, and the air in the closed chamber 1C is expanded by the hot plate 8 and the pressure in the closed chamber 1C rises compared to the atmospheric pressure, the first cup member 1 The first open end portion 1B is pushed outward along the hot plate 8. This state is shown in FIG. In the second cup member 2 as well, the closed chamber 2C is formed similarly to the first cup member 1, and the second open end 2B is pushed outward along the hot plate 8.

【０００９】そして、かかる外側方に向かって押し出さ
れた開口端部を有する第１カップ部材１の第１開口端部
１Ｂと、第２カップ部材２の第２開口端部２Ｂとが、熱
板離反工程を経た後のカップ接合工程において、接合さ
れて図６に示される如きフロートＦが形成される。以上
によると、図６によって理解される如く、両開口端部に
よって形成される接合鍔部Ｆ１はカップ部材の側壁部よ
り大きく外側方に向かって突出する。The first open end 1B of the first cup member 1 having the open end protruded outward and the second open end 2B of the second cup member 2 are connected to a hot plate. In the cup joining step after the separating step, the pieces are joined to form a float F as shown in FIG. According to the above description, as understood from FIG. 6, the joining flange portion F1 formed by the two open ends protrudes outward more than the side wall portion of the cup member.

【００１０】一方、気化器は図７に示される如く、気化
器本体１１と浮子室本体１２とによって浮子室１３が形
成され、この浮子室１３内に図示せぬバルブシート、フ
ロートバルブとともに定液面制御装置を構成するフロー
トＦが移動自在に配置されて、浮子室１３内に一定液面
Ｘ−Ｘを形成する。On the other hand, in the vaporizer, as shown in FIG. 7, a float chamber 13 is formed by a vaporizer main body 11 and a float chamber main body 12, and in the float chamber 13, a constant liquid is provided together with a valve seat and a float valve (not shown). A float F constituting the surface control device is movably disposed to form a constant liquid level XX in the float chamber 13.

【００１１】そして、前記フロートＦが浮子室３内に配
置された場合、気化器の全幅Ｄが大きくなり、気化器を
小さくまとめることができないという不具合を有する。
これは、フロートＦのもっとも外側方へ突出する接合鍔
部Ｆ１の外側部と浮子室本体１２の内側部１２Ａとの間
には一定の間隙Ｓを常に必要とし、一方フロートＦの接
合鍔部Ｆ１の外側部が大きく外側方に向かって突出した
為である。このように、気化器の全幅Ｄが大型化するこ
とは、特に二輪車の如く、気化器の搭載範囲が制限され
るものにその搭載の自由度が大きく制限されて好ましい
ものでない。When the float F is disposed in the float chamber 3, the total width D of the vaporizer becomes large, and the vaporizer cannot be reduced in size.
This means that a constant gap S is always required between the outer portion of the outermost joining flange F1 of the float F and the inner portion 12A of the float chamber main body 12, while the joining flange F1 of the float F This is because the outer portion of the main body protrudes largely outward. As described above, increasing the total width D of the carburetor is not preferable because the degree of freedom in mounting the carburetor is greatly limited to those in which the mounting range of the carburetor is limited, such as a motorcycle.

【００１２】又、第二例によると、カップ部材の開口端
部は熱板から放射される輻射熱によって加熱されて溶融
するもので、例えば８秒から１２秒間に渡って輻射加熱
が行なわれる。以上によると、フロートの接合時間が極
めて長くなり、生産性が著しく低下し、量産に全く適合
することができない。According to the second example, the open end of the cup member is heated and melted by the radiant heat radiated from the hot plate. For example, the radiant heat is performed for 8 to 12 seconds. According to the above, the joining time of the float becomes extremely long, the productivity is remarkably reduced, and it cannot be adapted to mass production at all.

【００１３】本発明は、かかる不具合に鑑み成されたも
ので、フロートの接合鍔部の外側が大きく外側方に向か
って突出することがなく、且つ生産性の秀れた気化器の
合成樹脂製フロートの製造方法を提供することを目的と
する。SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and the outside of the joining flange portion of the float does not largely protrude outward, and the synthetic resin of the carburetor is excellent in productivity. An object of the present invention is to provide a method for manufacturing a float.

【００１４】[0014]

【課題を解決する為の手段】本発明は、前記目的を達成
する為に、合成樹脂材料によって形成される有底カップ
状の第１カップ部材の第１開口端部と、合成樹脂材料に
よって形成される有底カップ状の第２カップ部材の第２
開口端部と、を熱板に向けて一定時間押圧して前記第１
開口端部と第２開口端部とを溶融するカップ溶融工程
と；第１カップ部材の第１開口端部と、第２カップ部材
の第２開口端部と、を熱板より離反するとともに熱板を
両開口端部の対向面間から除く熱板離反工程と；溶融状
態にある第１カップ部材の第１開口端部と、第２カップ
部材の第２開口端部とを圧接し、両開口端部を接合する
カップ接合工程と；よりなり、前記カップ溶融工程時に
おいて、第１カップ部材の第１開口端部の熱板に押圧さ
れることによって第１カップ部材内に形成される第１密
閉空間部と、第２カップ部材の第２開口端部が熱板に押
圧されることによって第２カップ部材内に形成される第
２密閉空間部と、を熱板に穿設せる大気開放路を介して
大気と連通したことを特徴とする。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a first cup end member having a bottomed cup shape formed of a synthetic resin material, and a first opening end formed of a synthetic resin material. Of the bottomed cup-shaped second cup member
And pressing the opening end portion toward the hot plate for a certain period of time.
A cup melting step of melting the open end and the second open end; separating the first open end of the first cup member and the second open end of the second cup member from the hot plate, A hot plate separating step of removing the plate from between the opposing surfaces of the two open ends; pressing the first open end of the first cup member in a molten state and the second open end of the second cup member into pressure; A cup joining step of joining the open end portions; and a step formed in the first cup member by being pressed against the hot plate at the first open end portion of the first cup member during the cup melting step. Opening the air to the hot plate, the first closed space and the second closed space formed in the second cup member by pressing the second open end of the second cup member against the hot plate. It is characterized by communicating with the atmosphere via a road.

【００１５】[0015]

【作用】カップ溶融工程時において、第１カップ部材の
第１密閉空間部と、第２カップ部材の第２密閉空間部は
熱板に穿設される大気開放路によって大気圧状態に保持
される。従って各カップ部材の溶融した開口端部が熱板
に沿って大きく外側方に向かって突出することがない。
そして、両カップ部材の開口端部を接合した際、接合鍔
部の外側部が大きく外側方に向かって突出することがな
く、小なるフロートを提供できる。In the cup melting step, the first closed space of the first cup member and the second closed space of the second cup member are maintained at atmospheric pressure by an open air path formed in a hot plate. . Therefore, the molten open end of each cup member does not protrude largely outward along the hot plate.
And when the opening end parts of both cup members are joined, the outside part of the joining flange does not protrude largely outward, and a small float can be provided.

【００１６】[0016]

【実施例】以下、本発明になる気化器の合成樹脂製フロ
ートの製造方法について図１，図２，図３によって説明
する。図１は、熱板溶着機Ｎを示す要部縦断面図、図２
は、カップ溶融工程の状態を示す要部縦断面図、図３
は、本発明の製造方法によって溶着されたフロートＦを
示す縦断面図である。尚、従来例と同一構造部分は同一
符号を使用して説明を省略する。本発明は、熱板溶着機
Ｎにおいて熱板が異なる。熱板２０には、大気開放路２
１が穿設されるもので、この大気開放路２１の一端２１
Ａは大気に開口し、他端２１Ｂは、熱板２０の一側面２
０Ａ及び他側面２０Ｂに開口する。（この一側面２０
Ａ、他側面２０Ｂは各カップ部材１，２の開口端部１
Ｂ，２Ｂに当接する面である。）DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for producing a synthetic resin float of a vaporizer according to the present invention will be described below with reference to FIGS. FIG. 1 is a longitudinal sectional view of a main part showing a hot plate welding machine N, and FIG.
FIG. 3 is a longitudinal sectional view of a main part showing a state of a cup melting step, and FIG.
1 is a longitudinal sectional view showing a float F welded by a manufacturing method of the present invention. The same components as those of the conventional example are denoted by the same reference numerals, and description thereof is omitted. In the present invention, the hot plate differs in the hot plate welding machine N. The hot plate 20 has an open air path 2
1, one end 21 of this open-to-air passage 21
A is open to the atmosphere, and the other end 21B is one side 2 of the hot plate 20.
0A and the other side surface 20B. (This one side 20
A, the other side surface 20B is the open end 1 of each of the cup members 1 and 2.
B, 2B. )

【００１７】そして、熱板２０の一側面２０Ａに開口す
る大気開放路２１の他端２１Ｂは、第１カップ部材１の
第１開口端部１Ｂの内方の投影面Ａ内に臨んで開口す
る。The other end 21B of the open-to-air passage 21 that opens to one side surface 20A of the heating plate 20 opens inside the projection plane A inside the first opening end 1B of the first cup member 1. .

【００１８】又、熱板２０の他側面２０Ｂに開口する大
気開放路２１の他端２１Ｂは、第２カップ部材２の第２
開口端部２Ｂの内方の投影面Ｂ内に臨んで開口する。The other end 21B of the open-to-air passage 21 opening to the other side surface 20B of the hot plate 20 is connected to the second cup member 2
It is opened facing the projection plane B inside the opening end 2B.

【００１９】そして、従来と同様に両カップ部材は、カ
ップ溶融工程、熱板離反工程、カップ接合工程、を経て
密閉状のフロートＦが溶着して形成される。カップ溶融
工程において、第１カップ部材１の第１開口端部１Ｂ
と、第２カップ部材２の第２開口端部２Ｂとを熱板２０
の一側面２０Ａ及び他側面２０Ｂに向けて一定時間押圧
し、両開口端部１Ｂ，２Ｂを一定量溶融するもので、こ
のとき、第１カップ部材１の第１開口端部１Ｂは、熱板
２０の一側端２０Ａによって閉塞され、一方、第２カッ
プ部材２の第２開口端部２Ｂは熱板２０の他側端２０Ｂ
によって閉塞されるが、第１カップ部材１の内方及び第
２カップ部材２の内方に密閉室が形成されることはな
い。As in the prior art, both cup members are formed by welding a sealed float F through a cup melting step, a hot plate separating step, and a cup joining step. In the cup melting step, the first opening end 1B of the first cup member 1
And the second open end 2B of the second cup member 2
Is pressed toward the one side surface 20A and the other side surface 20B for a certain period of time to melt both opening ends 1B and 2B by a certain amount. At this time, the first opening end 1B of the first cup member 1 is 20 is closed by one end 20A, while the second open end 2B of the second cup member 2 is connected to the other end 20B of the hot plate 20.
However, no closed chamber is formed inside the first cup member 1 and inside the second cup member 2.

【００２０】これは、一端２１Ａが大気に連なって開口
する大気開放路２１の他端２１Ｂ，２１Ｂが、熱板２０
の一側面２０Ａを介して第１カップ部材１の内方に開口
し、また熱板２０の他側面２０Ｂを介して第２カップ部
材１の内方に開口するからである。以上によると、両カ
ップ部材１，２の内方は大気圧状態に保持されるので、
熱板２０によって溶融された第１カップ部材１の第１開
口端部１Ｂは、熱板２０に沿って内側方及び外側方に向
かってほぼ均等に押し出される。この状態は、図２によ
く示される。尚、第２カップ部材２にあっても、第１カ
ップ部材１と同様にその第２開口端部２Ｂは熱板２０に
沿って内側方及び外側方に向かってほぼ均等に押し出さ
れる。このように各開口端部が内側方及び外側方にほぼ
均等に押し出されるのは、カップ部材の内方と外方の圧
力を同一状態に保持できたからである。This is because the other ends 21B and 21B of the open-to-air passage 21 whose one end 21A is open to the atmosphere are connected to the hot plate 20.
This is because it opens inside the first cup member 1 via one side surface 20A, and opens inside the second cup member 1 via the other side surface 20B of the hot plate 20. According to the above, since the inside of both cup members 1 and 2 is maintained at the atmospheric pressure state,
The first open end 1 </ b> B of the first cup member 1 melted by the hot plate 20 is substantially evenly extruded along the hot plate 20 toward the inside and the outside. This situation is best illustrated in FIG. Note that, even in the second cup member 2, the second opening end 2 </ b> B is substantially uniformly pushed out inward and outward along the hot plate 20, similarly to the first cup member 1. The reason why the opening ends are almost equally pushed inward and outward is that the inner and outer pressures of the cup member can be maintained in the same state.

【００２１】そして、かかる内側方及び外側方に向かっ
てほぼ均等に押し出された開口端部を有する第１カップ
部材１の第１開口端部１Ｂと、第２カップ部材２の第２
開口端部２Ｂとが、熱板離反工程を経たカップ接合工程
において、接合されて図３に示される如きフロートＦが
形成される。以上によると、図３によって判るごとく、
両開口端部によって形成される接合鍔部Ｆ１はカップ部
材の側壁部より内側方及び外側方にほぼ均等に突出させ
ることができる。従って、接合鍔部Ｆ１が内側方へ突出
した分に相当して接合鍔部Ｆ１の外側方への突出を少な
くでき、もって接合鍔部Ｆ１の外側部の外径を小径に形
成できたものである。A first opening end 1B of the first cup member 1 having an opening end substantially uniformly pushed inward and outward, and a second opening end 1B of the second cup member 2 are provided.
The opening end 2B is joined in a cup joining step after the hot plate separating step to form a float F as shown in FIG. According to the above, as can be seen from FIG.
The joining flange portion F1 formed by the two open end portions can be projected substantially inward and outward from the side wall portion of the cup member. Therefore, the outward projection of the joining flange F1 can be reduced by an amount corresponding to the projecting inward of the joining flange F1, and the outer diameter of the outer portion of the joining flange F1 can be formed to be small. is there.

【００２２】[0022]

【発明の効果】以上の如く、本発明によると、カップ溶
融工程時において、第１カップ部材の第１開口端部の熱
板に押圧されることによって第１カップ部材内に形成さ
れる第１密閉空間部と、第２カップ部材の第２開口端部
が熱板に押圧されることによって第２カップ部材内に形
成される第２密閉空間部と、を熱板に穿設せる大気開放
路を介して大気と連通したので、フロートの接合鍔部の
外側部を小径に形成することができ、かかるフロートを
気化器に採用することによって気化器の浮子室本体の全
幅を小とすることができて気化器への搭載の自由度の高
い気化器を提供できる。又、フロートの製造は、従来の
カップ装着工程、熱板離反工程、カップ接合工程をもっ
て行なわれ、各工程時において要する作業工数も従来と
同様に短時間に行なわれるもので生産効率が阻害される
ことはない。又、大気開放路は従来の熱板に対して追加
工することによって極めて容易に設けることができるの
で、実施が容易で且つ製造装置の製作費を大きく上昇さ
せることがない。As described above, according to the present invention, during the cup melting step, the first cup member formed in the first cup member by being pressed against the hot plate at the first opening end of the first cup member. An open air path for piercing a hot plate with a closed space and a second closed space formed in the second cup member by pressing a second opening end of the second cup member against the hot plate. Since the outer side of the joining flange portion of the float can be formed to have a small diameter because it is communicated with the atmosphere through, the entire width of the float chamber main body of the vaporizer can be reduced by adopting such a float in the vaporizer. It is possible to provide a vaporizer having a high degree of freedom in mounting on a vaporizer. In addition, the manufacture of the float is performed by the conventional cup mounting process, hot plate separating process, and cup joining process, and the number of work steps required in each process is also performed in a short time as in the past, and the production efficiency is hindered. Never. Further, since the open-to-atmosphere path can be provided extremely easily by additional processing to the conventional hot plate, the implementation is easy and the production cost of the production apparatus does not increase significantly.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の気化器の合成樹脂製フロートの製造方
法を実施する熱板溶着機の一実施例を示す要部縦断面
図。FIG. 1 is a longitudinal sectional view of a main part showing an embodiment of a hot plate welding machine for carrying out a method for producing a synthetic resin float of a vaporizer according to the present invention.

【図２】本発明におけるカップ溶融工程時におけるカッ
プ部材と熱板との状態を示す要部縦断面図。FIG. 2 is a longitudinal sectional view of a main part showing a state of a cup member and a hot plate during a cup melting step in the present invention.

【図３】本発明のフロートの製造方法によって溶着され
たフロートの縦断面図。FIG. 3 is a longitudinal sectional view of a float welded by the float manufacturing method of the present invention.

【図４】従来の熱板溶着機を示す要部縦断面図。FIG. 4 is a longitudinal sectional view showing a main part of a conventional hot plate welding machine.

【図５】従来のカップ溶着工程時におけるカップ部材と
熱板との状態を示す要部縦断面図。FIG. 5 is a longitudinal sectional view of a main part showing a state of a cup member and a hot plate during a conventional cup welding step.

【図６】従来のフロートの製造方法によって溶着された
フロートの縦断面図。FIG. 6 is a longitudinal sectional view of a float welded by a conventional float manufacturing method.

【図７】浮子室内にフロートが配置された状態を示す気
化器の縦断面図。FIG. 7 is a longitudinal sectional view of the vaporizer showing a state in which a float is arranged in the float chamber.

【符号の説明】[Explanation of symbols]

１ 第１カップ部材 １Ｂ 第１開口端部 ２ 第２カップ部材 ２Ｂ 第２開口端部 ２０ 熱板 ２１ 大気開放路 Ｎ 熱板溶着機 DESCRIPTION OF SYMBOLS 1 1st cup member 1B 1st opening end part 2 2nd cup member 2B 2nd opening end part 20 Hot plate 21 Open air path N Hot plate welding machine

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 合成樹脂材料によって形成される有底カ
ップ状の第１カップ部材の第１開口端部と、合成樹脂材
料によって形成される有底カップ状の第２カップ部材の
第２開口端部と、を熱板に向けて一定時間押圧して前記
第１開口端部と第２開口端部とを溶融するカップ溶融工
程と；第１カップ部材の第１開口端部と、第２カップ部
材の第２開口端部と、を熱板より離反するとともに熱板
を両開口端部の対向面間から除く熱板離反工程と；溶融
状態にある第１カップ部材の第１開口端部と、第２カッ
プ部材の第２開口端部とを圧接し、両開口端部を接合す
るカップ接合工程と；よりなり、前記カップ溶融工程時
において、第１カップ部材の第１開口端部の熱板に押圧
されることによって第１カップ部材内に形成される第１
密閉空間部と、第２カップ部材の第２開口端部が熱板に
押圧されることによって第２カップ部材内に形成される
第２密閉空間部と、を熱板に穿設せる大気開放路を介し
て大気と連通したことを特徴とする気化器の合成樹脂製
フロートの製造方法。1. A first open end of a cup-shaped bottomed first cup member formed of a synthetic resin material, and a second open end of a bottomed cup-shaped second cup member formed of a synthetic resin material. Melting the first open end and the second open end by pressing a portion toward the hot plate for a predetermined time; a first open end of the first cup member; A hot plate separating step of separating the second open end of the member from the hot plate and removing the hot plate from between the opposing surfaces of the two open ends; and a first open end of the first cup member in a molten state. And a cup joining step in which the second cup end is pressed against the second opening end of the second cup member to join the two opening ends together, and the heat of the first opening end of the first cup member in the cup melting step. A first cup formed in the first cup member by being pressed against the plate;
An open air path for piercing a hot plate with a closed space and a second closed space formed in the second cup member by pressing a second opening end of the second cup member against the hot plate. A method for producing a synthetic resin float for a vaporizer, characterized in that the float is made to communicate with the atmosphere via a through hole.
JP34991295A 1995-12-21 1995-12-21 Method for producing synthetic resin float for vaporizer Expired - Fee Related JP2896760B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34991295A JP2896760B2 (en) 1995-12-21 1995-12-21 Method for producing synthetic resin float for vaporizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34991295A JP2896760B2 (en) 1995-12-21 1995-12-21 Method for producing synthetic resin float for vaporizer

Publications (2)

Publication Number Publication Date
JPH09177612A JPH09177612A (en) 1997-07-11
JP2896760B2 true JP2896760B2 (en) 1999-05-31

Family

ID=18406951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34991295A Expired - Fee Related JP2896760B2 (en) 1995-12-21 1995-12-21 Method for producing synthetic resin float for vaporizer

Country Status (1)

Country Link
JP (1) JP2896760B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3700760B2 (en) * 2000-07-18 2005-09-28 豊田合成株式会社 Hot plate welding method
JP2007313672A (en) * 2006-05-23 2007-12-06 Aisan Ind Co Ltd Hot plate welding tool, welding member, and welding method

Also Published As

Publication number Publication date
JPH09177612A (en) 1997-07-11

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