CN1272551C - 壳体的熔敷部结构及泵壳和壳体的熔敷方法 - Google Patents

壳体的熔敷部结构及泵壳和壳体的熔敷方法 Download PDF

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CN1272551C
CN1272551C CNB001225588A CN00122558A CN1272551C CN 1272551 C CN1272551 C CN 1272551C CN B001225588 A CNB001225588 A CN B001225588A CN 00122558 A CN00122558 A CN 00122558A CN 1272551 C CN1272551 C CN 1272551C
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中曾根毅
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Nidec Instruments Corp
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    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
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    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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    • B29C66/05—Particular design of joint configurations
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    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
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    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
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    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
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    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
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    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
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    • 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
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    • 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
    • B29C66/542—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 joining hollow covers or hollow bottoms to open ends of container bodies
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
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Abstract

一种壳体的熔敷部结构及泵壳和壳体的熔敷方法，通过将2个树脂制壳半体进行超声波熔敷而形成由这2个壳半体围成的内部空间，将在第2壳半体上形成的壁部的前端插入在第1壳半体上形成的U字槽部内，并通过在所述U字槽部内将两个壳半体进行超声波熔敷而构成主熔敷部，且在U字槽部的外侧内壁上设置将第2壳半体的壁部前端向内部空间一侧推压并由此防止超声波熔敷时从主熔敷部产生的熔敷毛刺流入内部空间的斜面部。本发明可防止熔敷毛刺进入壳体内部。

Description

壳体的熔敷部结构及泵壳和壳体的熔敷方法
技术领域
本发明涉及泵装置等的壳体熔敷部结构，尤其涉及大口保温瓶(jar pot)装置等所用的要求小型且耐热水的壳体熔敷部结构及泵壳和壳体的熔敷方法。
背景技术
关于在外壳和配置于该外壳体内的贮水罐之间的空间设置利用电动机驱动源的电动式泵装置、并利用该泵装置将贮水罐内的热水向外壳的外部排出的保温瓶装置，过去提出过各种方案(见特开昭62-144613号公报等)。
在这种泵装置上，在分别与贮水罐和保温瓶装置的热水排出口连通的壳体内配置叶轮，利用配置在壳体外的电动机的驱动力使叶轮旋转，由此将贮存在贮水罐中的热水从热水排出口排出。因此，为了便于在内部装入叶轮，泵装置的壳体通常由2个以上的构件组成，并在装入叶轮后将它们用螺钉固定或用熔敷连接，以形成1条通路。
然而，当壳体用螺钉将多个构件固定以构成1条通路时，通过壳体内部的热水很可能从构件的接缝部分漏出。尤其是如果壳体较小时，固定用的各个螺钉也只能用较小的，这样就会减弱接缝各部位的强度，故热水漏出的危险性更大。曾经考虑过在接缝部分嵌入橡胶密封件等密封构件来防止液体泄漏，但这样一来，又会增加材料成本和组装成本。
为了解决螺钉固定的缺点，考虑利用熔敷连成一体的方法。即，使构件之间相互抵接，并在该抵接部分施加超声波振动等进行熔敷，由此使壳体形成一体，这样，接缝部分就成为一个连续的面，没有间隙，故可防止液体从该部分外漏。这种通过超声波熔敷实现一体化的方法对于很难用螺钉固定的小型壳体的一体化尤其有利。
然而，如果采用超声波熔敷实现一体化，实际上会在熔敷部分产生熔敷毛刺，要对其进行处理。即，通过振动等将接合部位加热时熔融材料的一部分成为熔敷毛刺。该熔敷毛刺有时会脱离构成壳体的部分。当这种熔敷毛刺产生于壳体内部时，问题尤其严重，如果从构成壳体的部分脱离的熔敷毛刺残留在壳体内部就安装到保温瓶装置上使用，熔敷毛刺就可能与排出的热水一起排出并与热水等一同被人饮下。而为了防止这种情况发生，就要在通过熔敷将壳体连成一体后，仔细地用水冲洗等，以将上述熔敷毛刺从壳体的内部空间取出，从而导致成本上升。
发明内容
鉴于上述问题，本发明的目的在于提供一种可避免熔敷毛刺进入壳体的熔敷部结构及泵壳和壳体的熔敷方法。
为了实现上述目的，本发明是一种壳体的熔敷部结构，通过将2个树脂制壳半体进行超声波熔敷而形成由2个壳半体围成的内部空间，其特点是，将在第2壳半体上形成的壁部的前端插入在第1壳半体上形成的U字槽部内，并通过在U字槽部内将两个壳半体进行超声波熔敷构成主熔敷部，且在第1壳半体的U字槽部的外侧的内壁上设置将第2壳半体的壁部的前端向内部空间一侧推压并由此防止超声波熔敷时从主熔敷部产生的熔敷毛刺流入内部空间的斜面部。
因此，被推压到内部空间一侧的第2壳半体的壁部的内壁与第1壳半体的U字槽部的靠内部空间一侧的内壁就通过一定程度的压接力而密接。结果，由于第1壳半体与第2壳半体在靠内部空间一侧的密接，就可防止因超声波熔敷而从主熔敷部产生的熔敷毛刺进入内部空间。
再一发明是除了具有上述壳体的熔敷部结构外，还将第2壳半体的壁部的前端被斜面部向内侧推压而与第1壳半体的U字槽部的内侧的内壁接触的部位作为弱熔敷部，在此部位进行几乎不会因为熔敷而产生熔敷毛刺的弱熔敷。因此，利用弱熔敷部，能进一步可靠防止从主熔敷部产生的熔敷毛刺流入内部空间。
再一发明是除了上述壳体的熔敷部结构外，还在第2壳半体壁部的弱熔敷部的前侧设置用该弱熔敷部和主熔敷部围成的空间，并将进行超声波熔敷时产生的主熔敷部的熔敷毛刺收容于该空间，由此更可靠地防止熔敷毛刺流入内部空间。
再一发明是除了上述壳体的熔敷部结构外，还在第1壳半体或第2壳半体中的任一方，在进行超声波熔敷时与超声波熔敷用机械的喇叭体(horn)抵接的那一面上设置与该喇叭体抵接用的凸出的凸出肋。因此，在进行超声波熔敷时可有效地集中从喇叭体对主熔敷部的振动，更加可靠地进行熔敷部的熔敷。
再一发明是一种壳体的熔敷部结构，通过将2个树脂制壳半体进行超声波熔敷而形成由2个壳半体围成的内部空间，其特点是，将在第2壳半体上形成于的壁部的前端插入在第1壳半体上形成的U字槽部内，并通过在U字槽部内将两个壳半体进行超声波熔敷构成熔敷部，且将第2壳半体的壁部前端与第1壳半体底侧之间的接触部位作为超声波熔敷的主熔敷部，同时将第2壳半体的靠内部空间一侧的面上的规定部位及其所接触的第1壳半体的U字槽部的内侧的内壁进行弱熔敷，成为防止在主熔敷部产生的熔敷毛刺进入内部空间的弱熔敷部。因此，由熔敷产生的熔敷毛刺就被弱熔敷部收容，防止其流入内部空间。
再一发明是一种壳体的熔敷部结构，通过将2个树脂制壳半体进行超声波熔敷而形成由2个壳半体围成的内部空间，其特点是，将在第2壳半体上形成的壁部的前端插入在第1壳半体上形成的U字槽部内，通过在U字槽部内将两个壳半体进行超声波熔敷来构成熔敷部，且在第1壳半体的设有U字槽部的位置上并在相反的一面设置与第2壳半体的壁部的凸出方向同方向凸出的凸出肋，并将该凸出肋作为超声波熔敷时供超声波熔敷用机械的喇叭体抵接的部位。
因此，进行超声波熔敷时，能有效地集中从喇叭体向熔敷部施加的超声波振动，更加可靠地进行熔敷部的熔敷。
本发明的泵壳用具有上述各熔敷部结构的壳体做成，内部空间与流体吸入口及流体排出口连通，且具有收容吸入及排出液体用的旋转叶轮用的空间。因此，可减少液体外漏的危险性，且可防止超声波熔敷时形成的熔敷毛刺流入内部空间。
本发明的壳体的熔敷方法是通过将2个树脂制壳半体进行超声波熔敷而将它们连成一体，其特点是，在第1壳半体上形成U字槽部，在该U字槽部内插入在第2壳半体上形成的壁部的前端，并使上述壁部前端与在U字槽部底侧的外侧内壁上形成的斜面部抵接，同时利用斜面部将该壁部的前端向内部空间一侧推压，使上述壁部的内侧的规定位置与U字槽部内侧的内壁抵接，在此状态下，从U字槽部的背面施加超声波振动，并通过该超声波振动在2个抵接位置上将第1壳半体和第2壳半体进行超声波熔敷。
因此，只要将第2壳半体的壁部推到第1壳半体的U字槽部内，并使喇叭体从内侧抵接以进行超声波熔敷，即可用壁部被推到内侧且与U字槽部内侧的内壁抵接的部位阻止在U字槽部的底侧产生的熔敷毛刺流入内部空间。
附图说明
图1是具有本发明实施形态的熔敷部结构的泵壳纵剖视图。
图2是表示图1泵壳的组装结构的分解纵剖视图。
图3是从图1中箭头III方向看图1泵壳的仰视图。
图4是表示在图1泵壳的熔敷部分刚将第2壳半体的壁部插入第1壳半体的U字槽部内后的状态的局部放大剖视图。
图5是表示从图4的状态起将第2壳半体继续插入到深处、且刚进行超声波熔敷后的状态的局部放大图。
具体实施方式
以下结合图1到图5说明本发明实施形态的壳体熔敷部结构及泵壳和壳体的熔敷方法。本实施形态是将具有熔敷部结构的壳体作为装入大口保温瓶等的泵壳来说明的，但本发明的熔敷部结构并非仅限于此，而是适用于其他用途的所有壳体。
如图1和图2所示，成为壳体的泵壳1是通过将2个树脂性壳半体2、3在装入叶轮9后在熔敷部4进行超声波熔敷后形成一体，由此形成由壳半体2、3围起的内部空间。设想该泵壳1将装入供热水用的大口保温瓶，用耐热性好的PPS(聚苯撑硫，本实施形态掺入30％的玻璃作为无机填充物)做成，当然也可用其他树脂、譬如PP等做成。
泵壳1如图2及图3所示，具有吸引液体用的吸引部5、与该吸引部5连续的流通通路6、与该液体通路6连续的叶轮室7、设在叶轮室7的外周方向且排出液体用的排出部8。吸引部5设在泵壳1的一端，叶轮室7设在泵壳1的另一端，设有液体通路6将该吸引部5与叶轮室7连通。另外，排出部8设在叶轮室7外侧不与液体通路6重叠的方向。
在叶轮室7内，竖立固定着金属制的旋转轴71，该旋转轴71上旋转自如地支承着进行泵活动用的叶轮9。即，叶轮室7成为收容旋转的叶轮9用的收容空间。叶轮9由旋转自如地嵌入旋转轴71的袋状旋转中心轴91和固定在该旋转中心轴91的外周部分的多个叶片部92构成。
上述结构的泵壳1成为通过设置驱动部而吸引并排出液体源的液体的泵装置。而且，具有该泵壳1的泵装置将吸引部5前端的流体吸引口51与液体源连接，并通过电动机等驱动源使叶轮9旋转，由此从吸引部5吸入液体源的液体，并通过液体通路6送入叶轮室7，再从排出部8前端的流体排出口81排出。即，泵壳1的内部空间与流体吸引口51和流体排出口81双方连通。
以下以熔敷部4为中心说明构成泵壳1的2个壳体2、3的结构，
构成泵壳1的2个壳体中的1个、即第1壳半体2，如图2所示，用具有平面部21和沿该平面部21的外周竖立的外壁22的截面为大致“コ”形的构件做成。并且在外壁22的外侧设置小外壁23。用外壁22和小外壁23以及上述平面部21的外周附近部分形成供第2壳半体3的壁部31的前端部分插入用的U字槽部24。即，该U字槽部24在第1壳半体2的一端沿平面部21的外周端形成。
又如图4所示，在构成U字槽部24外侧壁部的小外壁23的内壁23a的靠近底面部分，形成斜面部23b。如图5所示，该斜面部23b用于在将第2壳半体3的壁部31的前端插入U字槽部24内后将壁部31的前端向泵壳1的内部空间一侧推压。
另外，在平面部21的与形成U字槽的一面相反的一面(内侧的面)上，在与构成熔敷部4的U字槽部24相同的位置上设有凸出肋25。该凸出肋25成为进行超声波熔敷时供超声波熔敷用机械(未图示)的喇叭体(未图示)抵接的部位。该凸出肋25的凸出高度H1最好在约0.3mm～1.5mm。凸出高度H1高于0.3mm，进行超声波熔敷时就容易使振动集中于抵接部位。另外，凸出高度H1低于1.5mm时，超声波振动自身容易被传递。
另外，第1壳半体2如图1所示，具有大致圆锥形的推力垫部26，该推力垫部26可承接在叶轮9的旋转中心形成、且旋转自如地嵌入旋转轴71的袋状旋转中心轴91的前端。在将叶轮9插入旋转轴71并使第1壳半体2和第2壳半体3形成一体后，该推力垫部26就成为叶轮9的止脱部。
另外，如图2所示，第2壳半体3载放电动机等驱动源，同时具有：成为叶轮室7的上壁的圆形平面部32、成为叶轮室7的周壁的圆筒部33、向该圆筒部33的外周方向延伸的截面为“コ”形的通路形成部34、在通路形成部34的终端形成的吸引部形成部35、沿圆筒部33的外周部分延出的排出部形成部36。并且在圆形平面部32的外周边缘竖立肋32a，用于载放固定作为驱动源的电动机装置。另外，在圆形平面部32的靠内部空间一侧的面上，设有嵌入固定旋转轴71用的固定部32b，在形成于该固定部32b的中心的凹部内嵌入旋转轴71的一端。
另外，本实施形态在圆形平面部32的上侧固定有电动机(未图示)，该电动机在旋转轴的前端设有旋转盘，该旋转盘上设有对内装于图2所示的叶轮9中的磁铁进行吸引用的吸引用磁铁。因此，叶轮室7内的叶轮9就由于电动机的驱动而跟随磁铁动作，从而受到旋转驱动。
圆筒部33用于与圆形平面部32共同形成叶轮室7，形成将叶轮围住的筒状。通路形成部34与第1壳半体2的平面部21共同形成液体通路6。另外，吸引部形成部35成为构成上述泵壳1的吸引部5的部分，并成为从通路形成部34向垂直方向弯曲的连贯的筒状部位。排出部形成部36成为构成上述泵壳1的排出部8的部分，并成为与圆筒部33的外周连通且与圆筒部33平行延伸的筒状部位。
在上述结构的第2壳半体3的外周端部分，沿一周形成壁部31，该壁部31的前端部分插入沿第1壳半体2的外周端形成的U字槽部24。并且如图5所示，在该壁部31前端部分的靠内部空间一侧的面上形成锥形面31a。该锥形面31a用于在将第2壳半体3的壁部31插入第1壳半体2的U字槽部24内后，在第2壳半体3与第1壳半体2之间确保一定的空间S。此时形成的空间S用于将进行超声波熔敷时从主熔敷部产生的熔敷毛刺收容于其中。
以下结合图2、图4及图5说明将上述结构的第1及第2壳半体2、3在熔敷部4用超声波熔敷形成一体、以形成泵壳1的熔敷方法。
首先，将叶轮9沿图2的箭头A方向插入竖立在第2壳半体3上的金属制旋转轴71上。使叶轮9在叶轮室7内旋转自如。在本实施形态中，在叶轮9中内装磁铁，该磁铁被预先设置固定在第2壳半体3中的驱动源侧磁铁所吸引，故一旦叶轮9被插入旋转轴71，由于磁铁的吸引力，就不会从第2壳半体3脱落。然而，也可不在超声波振动之前在第2壳半体3中设置电动机等驱动源，而是在超声波振动后固定于泵壳1内。
并且，在叶轮9插入后，将第2壳半体3嵌入第1壳半体2(沿图2中箭头B方向)，使沿第2壳半体3的外周端一周形成的壁部31的前端插入第1壳半体2的U字槽部24深处。这样，如图4所示，首先是壁部31的前端部分与U字槽部24的斜面部23b抵接。
这时，在U字槽部24的外侧的内壁23a上形成的斜面部23b将第2壳半体2的壁部31向泵壳1的内部空间一侧推压。该斜面部23b将壁部31向图4中箭头D方向推压，使壁部31的靠内部空间一侧的面上的规定部位(后述的锥形面31a上侧的部位)接近U字槽部24的规定部位(外壁22的与壁部31相对的部位)。同时，利用在壁部31的前端形成的锥形面31a，在第2壳半体3和第1壳半体2之间形成空间S。
在这种状态下，使超声波熔敷用机械的喇叭体(未图示)与第1壳半体2的平面部21上形成凸出肋25的一面抵接。这样，就使喇叭体与凸出肋25抵接。而且从喇叭体对第1壳半体2施加超声波振动。
因此，振动就集中传递到第1壳半体2上形成凸出肋25的部位。结果，在第1壳半体2内的U字槽部24内，超声波振动有效地沿图4中箭头E方向传递。
一旦超声波振动沿箭头E方向传递，如图5所示，第2壳半体3的壁部31的前端部分与U字槽部24内的斜面部23b之间的抵接部位就被热熔敷。该位置上的熔敷就成为超声波振动的振动方向上的熔敷，因此熔敷强度高，成为本实施形态中几乎占整个超声波熔敷的主熔敷部41。
而在进行主熔敷部41的熔敷时，向着上述箭头E方向的部分压力由于斜面部23b的作用而向箭头F方向分力。使壁部31的锥形面31a以上的部分沿箭头F方向边与U字槽部24的靠内部空间一侧的内壁(外壁22的U字槽部24内的内壁)压接边抵接。使该抵接部位也受到超声波振动而进行熔敷。
另外，该抵接部位是锥形面31a的起始部分、即角部，所谓超声波熔敷的振动方向，就成为交叉方向的熔敷，熔敷强度与上述主熔敷部41相比极弱，故相对上述主熔敷部41而称其为弱熔敷部42。在该弱熔敷部42进行的熔敷不能有效地传递超声波振动，故熔敷也很少。结果，在该弱熔敷部42几乎不产生熔敷毛刺。
该弱熔敷部42的作用主要在于防止在主熔敷部41进行熔敷时产生的熔敷毛刺进入内部空间。具体说，是将在主熔敷部41产生的熔敷毛刺收容于由锥形面31a形成的U字槽部24内的空间S内。因此，即使主熔敷部41因熔敷而产生熔敷毛刺，也能将该熔敷毛刺收容于U字槽部24内的空间S内，而不会进入泵壳1的内部空间。
上述实施形态是本发明的较佳实施形态，但并不限于此形态，还可在不脱离本发明宗旨的范围内作各种变形。譬如，上述实施形态的泵壳1是在第1壳半体2的平面部21上设置与喇叭体抵接用的凸出肋25，但也可不在平面部21上，而是在喇叭体上形成凸出肋。另外，在使喇叭体从第2壳半体3一侧抵接的场合，也可在第2壳半体3上形成凸出肋。也可以是双方都不设该凸出肋25。还有，该凸出肋25用于在进行超声波熔敷时使振动集中于抵接部位，仅此就有良好的效果，故还可独立用于不具有上述熔敷结构的壳体的超声波熔敷。
另外，在上述实施形态中，用第1及第2壳半体2、3构成的泵壳1的外周形状为复杂的形状，本发明的熔敷结构在进行这类复杂形状的熔敷时具有良好效果，但本发明也适用于将单纯的圆形或四边形等简单形状之间进行的熔敷。
另外，上述实施形态是在第2壳半体3的壁部31的靠内部空间一侧的面上设置锥形面31a，并通过该锥形面31a形成由弱熔敷部和主熔敷部围成的空间S，以将熔敷毛刺收容于该空间S内，但它并不限于锥形。
再有，上述实施形态是从第1壳半体2的背面(设有凸出肋25的面)传递超声波振动，不过也可以从另一面、譬如小外壁23的外侧或第2壳半体3一侧施加振动。
如上所述，采用本发明的熔敷部结构，可通过超声波熔敷将推压到内部空间一侧的第2壳半体的壁部的内壁和第1壳半体的U字槽部的靠内部空间一侧的内壁用一定程度的压接力密接。因此，因超声波熔敷而从主熔敷部产生的熔敷毛刺就被密接部分阻止，被收容于U字形槽部内而不会进入内部空间。

Claims (8)

1.一种泵壳体的熔敷部结构，通过将2个树脂制壳半体进行超声波熔敷而形成由这2个壳半体围成的内部空间，其特征在于，将在第2壳半体上形成的壁部的前端插入在第1壳半体上形成的U字槽部内，并通过在所述U字槽部内将两个壳半体进行超声波熔敷而构成主熔敷部，且在所述第1壳半体的U字槽部的外侧的内壁上设置将所述第2壳半体的壁部前端向内部空间一侧推压并由此防止超声波熔敷时从主熔敷部产生的熔敷毛刺流入内部空间用的斜面部。
2.根据权利要求1所述的泵壳体的熔敷部结构，其特征在于，将所述第2壳半体的壁部的前端被所述斜面部向内侧推压而与所述第1壳半体的U字槽部的内侧的内壁接触的部位作为用超声波进行弱熔敷的弱熔敷部。
3.根据权利要求2所述的泵壳体的熔敷部结构，其特征在于，在所述第2壳半体壁部的所述弱熔敷部的前侧，设置用该弱熔敷部和主熔敷部围成的空间，并将超声波熔敷时产生的熔敷毛刺收容于该空间。
4.根据权利要求1所述的泵壳体的熔敷部结构，其特征在于，在第1壳半体或第2壳半体中的任一方，在超声波熔敷时与超声波熔敷用机械的喇叭体抵接的那一面上设置与该喇叭体抵接用的凸出的凸出肋。
5.一种泵壳体的熔敷部结构，通过将2个树脂制壳半体进行超声波熔敷而形成由2个壳半体围成的内部空间，其特征在于，将在第2壳半体上形成的壁部的前端插入在第1壳半体上形成的U字槽部内，通过在所述U字槽部内将两个壳半体进行超声波熔敷构成熔敷部，且将所述第2壳半体的壁部前端与所述第1壳半体底侧之间的接触部位作为超声波熔敷的主熔敷部，同时将所述第2壳半体的靠内部空间一侧的面上的规定部位及其所接触的所述第1壳半体的U字槽部的内侧的内壁进行弱熔敷，成为防止在所述主熔敷部产生的熔敷毛刺进入所述内部空间用的弱熔敷部。
6.一种泵壳体的熔敷部结构，通过将2个树脂制壳半体进行超声波熔敷而形成由2个壳半体围成的内部空间，其特征在于，将在第2壳半体上形成的壁部的前端插入在第1壳半体上形成的U字槽部内，通过在所述U字槽部内将两个壳半体进行超声波熔敷来构成熔敷部，且在所述第1壳半体的设有U字槽部的位置上的相反一面设置与所述第2壳半体的壁部的凸出方向同方向凸出的凸出肋，将该凸出肋作为超声波熔敷时供超声波熔敷用机械的喇叭体抵接的部位。
7.一种泵壳，其特征在于，用具有权利要求1所述的熔敷部结构的壳体做成，内部空间与流体吸入口及流体排出口连通，且具有收容吸入及排出液体用的旋转叶轮用的空间。
8.一种泵壳体的熔敷方法，通过将2个树脂制壳半体进行超声波熔敷而将它们连成一体，其特征在于，在第1壳半体上形成U字槽部，在该U字槽部内插入在第2壳半体上形成的壁部的前端，使所述壁部前端与在所述U字槽部底侧的外侧内壁上形成的斜面部抵接，同时利用所述斜面部将该壁部的前端向内部空间一侧推压，使所述壁部的内侧的规定位置与所述U字槽部的内侧的内壁抵接，在此状态下，从所述U字槽部的背面施加超声波振动，通过该超声波振动在所述2个抵接位置上将所述第1壳半体和所述第2壳半体进行超声波熔敷。
CNB001225588A 1999-08-11 2000-08-04 壳体的熔敷部结构及泵壳和壳体的熔敷方法 Expired - Fee Related CN1272551C (zh)

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US6830323B2 (en) 2002-08-13 2004-12-14 Eastman Kodak Company Restricting flash spread when welding housing halves of cartridge together
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JP6448343B2 (ja) * 2014-12-12 2019-01-09 株式会社川本製作所 ポンプケーシング及びポンプ装置
US10283285B2 (en) 2017-02-17 2019-05-07 Honeywell International Inc. Method of forming a contact involving the removal of flash
KR102442324B1 (ko) * 2020-08-26 2022-09-14 지엠비코리아 주식회사 전동식 워터펌프의 결합방법

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