TWM537737U - Electrical card connector - Google Patents

Description

電子卡連接器Electronic card connector

本創作係關於一種電子卡連接器，尤其涉及一種用於連接電子卡與印刷電路板的電子卡連接器。The present invention relates to an electronic card connector, and more particularly to an electronic card connector for connecting an electronic card to a printed circuit board.

隨著手機、數碼相機等消費性電子產品的迅猛發展，尤其在各種電子產品的功能飛速拓展的前提下，這些設備本身的存儲容量已不能滿足消費者的需求。是故，電子生產商在電子設備中加入電子卡連接器來連接外部的存儲卡介質，以擴充電子設備的存儲容量。藉安裝於電子設備上的電子卡連接器，實現電子卡與電子設備內的印刷電路板之間的訊號連接，隨著電子卡連接器的功能日益完善，習知技術中已出現了複數種電子卡連接器的退卡機構。With the rapid development of consumer electronic products such as mobile phones and digital cameras, especially under the premise of the rapid expansion of the functions of various electronic products, the storage capacity of these devices cannot meet the needs of consumers. Therefore, electronic manufacturers add electronic card connectors to electronic devices to connect external memory card media to expand the storage capacity of electronic devices. The electronic card connector mounted on the electronic device realizes the signal connection between the electronic card and the printed circuit board in the electronic device. With the increasingly perfect function of the electronic card connector, a plurality of electronic technologies have appeared in the prior art. The card connector's card ejecting mechanism.

相關習知技術中一般的電子卡連接器主要由一絕緣本體、固設於絕緣本體內的複數導電端子、退卡機構及蓋設於絕緣本體上的遮蔽殼體組成。其中一種退卡機構主要由推桿及執行件配合組成。其中推桿主要呈長條形設計，電子卡連接器的絕緣本體一側設有滑槽，推桿對應收容於滑槽內並可在滑槽內實現前後滑動。執行件大致呈長條形片狀或塊狀設置，以執行件上的某處為旋轉支點固設於絕緣本體的插卡末端，執行件的一端與推桿配合，另一端可抵推電子卡。使用者通過推壓推桿的一端致使推桿的另一端抵推執行件，執行件受推力後以旋轉支點為中心旋轉，執行件的另一端向外抵推電子卡實現退卡動作。A conventional electronic card connector of the prior art is mainly composed of an insulative housing, a plurality of conductive terminals fixed in the insulating body, a card ejecting mechanism, and a shielding housing that is disposed on the insulative housing. One of the card withdrawal mechanisms is mainly composed of a push rod and an actuator. The push rod is mainly in the shape of a long strip. The side of the insulative housing of the electronic card connector is provided with a sliding slot. The push rod is correspondingly received in the sliding slot and can be slid back and forth in the sliding slot. The actuator is arranged in a substantially strip shape or a block shape, and is fixed at a certain end of the actuator as a rotation fulcrum at the end of the card of the insulating body, one end of the actuator is matched with the push rod, and the other end can push the electronic card . The user pushes one end of the push rod to cause the other end of the push rod to push against the actuator, and the actuator is rotated by the rotation pivot point, and the other end of the actuator pushes the electronic card outward to realize the card retracting action.

然，習知技術中類似的電子卡連接器的退卡機構中，執行件與推桿配合後往往使得電子卡連接器在高度方向上的尺寸增大，從而增大了電子設備的插卡空間需求，不能滿足電子設備的薄型化發展需求。However, in the card ejecting mechanism of the similar electronic card connector in the prior art, the engagement of the actuator with the push rod tends to increase the size of the electronic card connector in the height direction, thereby increasing the card space of the electronic device. Demand cannot meet the needs of thin development of electronic equipment.

是以，需要一種改進之電子卡連接器以彌補先前技術中之前述缺陷。Therefore, there is a need for an improved electronic card connector to compensate for the aforementioned drawbacks of the prior art.

本創作之主要目的在於提供一種高度降低的電子卡連接器。The main purpose of this creation is to provide a highly reduced electronic card connector.

本創作之電子卡連接器可藉以下技術方案實現：一種電子卡連接器，包括絕緣本體、固定於絕緣本體上的複數導電端子、與絕緣本體相配合的遮蔽殼體、固定於絕緣本體的退卡機構，所述絕緣本體與遮蔽殼體之間形成有容納電子卡的收容空間，退卡機構包括安裝於絕緣本體一側的推桿及樞轉安裝於絕緣本體的插卡方向末端藉推桿推動而作動旋轉進而將電子卡自收容空間推出的執行件，所述執行件與推桿配合的那一端的底面被薄型化處理後形成一缺部，使得執行件與推桿配合的那一端較相對的另一端要薄。The electronic card connector of the present invention can be realized by the following technical solutions: an electronic card connector, comprising an insulating body, a plurality of conductive terminals fixed on the insulating body, a shielding shell matched with the insulating body, and a retraction fixed to the insulating body a card mechanism, a receiving space for accommodating an electronic card is formed between the insulating body and the shielding shell, and the card ejecting mechanism comprises a push rod mounted on one side of the insulating body and a card insertion end lever pivotally mounted on the insulating body Actuating the rotating and pushing the electronic card from the receiving space, the bottom surface of the end of the engaging member and the push rod is thinned to form a missing portion, so that the end of the actuator and the push rod is compared The opposite end is thin.

相較於習知技術，本創作具有如下功效：電子卡連接器的執行件在與推桿配合的那一端進行了薄型化處理，從而使得這一端的高度降低，可使電子卡連接器的整體高度降低。Compared with the prior art, the creation has the following effects: the actuator of the electronic card connector is thinned at the end of the push rod, so that the height of the end is lowered, and the whole of the electronic card connector can be made. The height is lowered.

第一圖是本創作電子卡連接器的立體圖；The first figure is a perspective view of the electronic card connector of the present invention;

第二圖是第一圖所示電子卡連接器另一視角的視圖；The second figure is a view of another view of the electronic card connector shown in the first figure;

第三圖是第一圖所示電子卡連接器抽屜座移開後的立體分解圖；The third figure is an exploded perspective view of the electronic card connector drawer seat shown in the first figure after being removed;

第四圖是第三圖所示電子卡連接器的部分組裝圖；Figure 4 is a partial assembled view of the electronic card connector shown in Figure 3;

第五圖是第三圖所示電子卡連接器的執行件的立體圖。Figure 5 is a perspective view of the actuator of the electronic card connector shown in Figure 3.

請參閱第一圖至第三圖所示，本創作揭示了一種電子卡連接器，其包括：絕緣本體1、裝設於絕緣本體1內的複數端子2、固設於絕緣本體1兩側的鎖扣元件3、退卡機構4及遮蓋於絕緣本體1上的遮蔽殼體5。其中，絕緣本體1和遮蔽殼體5界定形成一用於收容抽屜座6的收容空間。Referring to the first to third figures, the present invention discloses an electronic card connector comprising: an insulative housing 1 , a plurality of terminals 2 mounted in the insulative housing 1 , and fixed on both sides of the insulative housing 1 . The locking element 3, the card ejecting mechanism 4 and the shielding shell 5 covering the insulative housing 1 are provided. The insulative housing 1 and the shielding housing 5 define a receiving space for receiving the drawer seat 6 .

請參閱第二圖至第五圖所示，絕緣本體1大致呈長方體狀，其具有一底壁11及沿底壁兩側垂直向上延伸形成的兩側壁12，絕緣本體1的後部由底壁11垂直向上凸設有一凸台13，該凸台13在橫向方向上位於底壁11的一側。絕緣本體1遠離凸台13的一端為插卡端，所述底壁11上開設有複數個端子槽111，端子槽111呈兩排設置且貫穿底壁11。絕緣本體1的一個側壁12自上而下形成有收容槽121，該收容槽121靠近絕緣本體1後部的凸台13。前述側壁12的中部開設有一滑移槽123，所述滑移槽123與收容槽121位於同一個側壁上且貫穿側壁12的插卡前端面，滑移槽123在位於插卡末端處向下貫穿底壁11形成有長方形的限位孔124。所述凸台13的上表面向上突出形成有一轉軸131。所述絕緣本體1上與凸台13相對的另一側設有一偵測端子槽14。Referring to the second to fifth figures, the insulative housing 1 has a substantially rectangular parallelepiped shape, and has a bottom wall 11 and two side walls 12 extending vertically upwards on both sides of the bottom wall. The rear portion of the insulative housing 1 is defined by the bottom wall 11 A boss 13 is vertically protruded upward, and the boss 13 is located on one side of the bottom wall 11 in the lateral direction. One end of the insulative housing 1 away from the boss 13 is a card end. The bottom wall 11 defines a plurality of terminal slots 111. The terminal slots 111 are disposed in two rows and penetrate the bottom wall 11. A side wall 12 of the insulative housing 1 is formed with a receiving groove 121 from the top to the bottom, and the receiving groove 121 is adjacent to the boss 13 at the rear of the insulative housing 1. A sliding slot 123 is defined in the middle of the sidewall 12, and the sliding slot 123 is located on the same sidewall of the sidewall 12 and extends through the front end surface of the card 12, and the sliding slot 123 runs downward at the end of the card. The bottom wall 11 is formed with a rectangular limiting hole 124. The upper surface of the boss 13 protrudes upward to form a rotating shaft 131. A detecting terminal slot 14 is disposed on the other side of the insulative housing 1 opposite to the boss 13 .

端子2包括複數訊號端子21及偵測端子23，所述訊號端子21固設於絕緣本體1的端子槽111內。所述偵測端子23大致呈彎曲狀結構，其具有一橫向延伸的固定部230，偵測端子23朝向插卡端的一側設置有接觸部231，該接觸部231突伸至收容空間內，固定部230定位於絕緣本體1後部的偵測端子槽14內，當電子卡完全***後向後抵推接觸部231。The terminal 2 includes a plurality of signal terminals 21 and a detecting terminal 23 , and the signal terminals 21 are fixed in the terminal slots 111 of the insulative housing 1 . The detecting terminal 23 has a substantially curved structure, and has a laterally extending fixing portion 230. The detecting terminal 23 is provided with a contact portion 231 facing the card end. The contact portion 231 protrudes into the receiving space and is fixed. The portion 230 is positioned in the detecting terminal slot 14 at the rear of the insulative housing 1 and pushes the contact portion 231 backwards when the electronic card is fully inserted.

鎖扣元件3大致呈一長條形金屬片，鎖扣元件3偏離中間處彎折一定角度形成一彎折部（未標示），彎折部位置固設有表面光滑的鎖扣部31。所述鎖扣元件3收容於絕緣本體1兩側設置的收容槽125內，鎖扣元件3固持於對應收容槽125的前端以實現鎖扣元件3的前後定位，鎖扣部31突伸至收容空間內用於限制***後的電子卡的左右晃動，確保電子卡與訊號端子21的穩定接觸。The locking element 3 is substantially an elongated metal piece. The locking element 3 is bent at an angle from the middle to form a bent portion (not shown), and the bent portion is fixed with a locking portion 31 having a smooth surface. The locking component 3 is received in the receiving groove 125 disposed on the two sides of the insulative housing 1. The locking component 3 is fixed to the front end of the corresponding receiving slot 125 to realize the front and rear positioning of the locking component 3, and the latching portion 31 protrudes to receive The space is used to limit the left and right shaking of the inserted electronic card to ensure stable contact between the electronic card and the signal terminal 21.

退卡機構4主要包括安裝於絕緣本體1一側的側壁12上的推桿41及樞轉安裝於絕緣本體1的插卡方向末端藉推桿41推動而作動旋轉進而將電子卡自收容空間推出的執行件42，其中推桿41由一長條形金屬板衝壓彎折形成。所述推桿41一端彎折形成有推壓部411，推桿41遠離推壓部411的另一端自上而下凹陷形成有凹槽412，推桿41的下表面向下突出形成一限位部413。The ejecting mechanism 4 mainly includes a push rod 41 mounted on the side wall 12 of the insulative housing 1 and a push-to-end end pivotally mounted on the insulative housing 1 by a push rod 41 to be rotated to push the electronic card out of the receiving space. The actuator 42 is formed by stamping and bending an elongated metal plate. The push rod 41 is bent at one end to form a pressing portion 411. The other end of the push rod 41 away from the pressing portion 411 is recessed from the top to the bottom to form a recess 412. The lower surface of the push rod 41 protrudes downward to form a limit. Part 413.

所述執行件42大致呈片狀結構，其中執行件42中部挖設有樞轉孔421，執行件42遠離推桿41的一端相較於與推桿41配合的那一端在前後方向上更遠離樞轉孔421，如此以使執行件42的一端用來與推桿41配合，另一端可以用來朝向插卡端推動裝有電子卡的抽屜座6。執行件42與推桿41配合的那一端的底面被薄型化處理後形成一缺部423，因為該缺部423的存在，執行件42與推桿41配合的那一端較相對的另一端要薄。在本實施例中，執行件42的薄型化是通過鍛壓來實現的，形成缺部423後，執行件42與推桿41配合的那一端較薄，使得執行件42放置在推桿41上後其突出於絕緣本體1的高度降低。The actuator 42 has a substantially sheet-like structure, wherein a central portion of the actuator 42 is provided with a pivot hole 421, and an end of the actuator 42 away from the push rod 41 is farther away from the end of the push rod 41 in the front-rear direction. The pivot hole 421 is such that one end of the actuator 42 is used to engage the push rod 41, and the other end can be used to push the drawer 6 with the electronic card toward the card end. The bottom surface of the end at which the actuator 42 is engaged with the push rod 41 is thinned to form a missing portion 423. Because of the absence of the missing portion 423, the end of the actuator 42 that engages with the push rod 41 is thinner than the opposite end. . In the present embodiment, the thinning of the actuator 42 is achieved by forging. After the missing portion 423 is formed, the end at which the actuator 42 is engaged with the push rod 41 is thin, so that the actuator 42 is placed on the push rod 41. It protrudes from the height of the insulating body 1 to be lowered.

參照第四圖所示，執行件42位於絕緣本體1後部的凸台13上，凸台13上的轉軸131***執行件42的樞轉孔421中，推桿41收容於絕緣本體1的滑移槽123內，並可在滑移槽123內沿電子卡插拔方向滑動，推壓部411突出於絕緣本體1外以供操作者按壓操作。執行件42的缺部423放置在推桿41的凹槽412內且可被凹槽412在前後方向上限制，從而實現推桿41與執行件42的穩定配合。執行件42與凹槽412配合的那一端的末端部424橫向延伸進入絕緣本體1的收容槽121內，該末端部424可在推桿41的帶動下在收容槽121內沿前後方向滑動。推桿41的限位部413收容於絕緣本體1的限位孔124內並可實現沿電子卡插拔方向滑動，從而實現推桿41在滑移槽123內滑動時的前後限位。Referring to the fourth figure, the actuator 42 is located on the boss 13 at the rear of the insulative housing 1. The rotating shaft 131 on the boss 13 is inserted into the pivot hole 421 of the actuator 42 and the push rod 41 is accommodated in the sliding of the insulating body 1. The groove 123 is slidable in the sliding direction of the electronic card in the sliding groove 123, and the pressing portion 411 protrudes outside the insulating body 1 for the operator to press and operate. The missing portion 423 of the actuator 42 is placed within the recess 412 of the push rod 41 and can be restrained in the front-rear direction by the recess 412, thereby achieving a stable fit of the push rod 41 with the actuator 42. The end portion 424 of the one end of the engaging member 42 and the recess 412 extends laterally into the receiving groove 121 of the insulative housing 1. The end portion 424 is slidable in the front and rear direction in the receiving groove 121 by the push rod 41. The limiting portion 413 of the push rod 41 is received in the limiting hole 124 of the insulative housing 1 and can be slid in the direction of insertion and removal of the electronic card, thereby achieving the front and rear limit of the push rod 41 when sliding in the sliding groove 123.

使用時，使用者通過推動推桿41上的推壓部411，推桿41在滑移槽123內向插卡方向滑動，推桿41的另一端通過其上設置的凹槽412帶動執行件42與其配合的那一端向插卡方向滑動，使執行件42以轉軸131為軸心旋轉進而帶動執行件42的另一端向插卡端運動從而推出裝有電子卡的抽屜座6以實現退卡動作。In use, the user pushes the pressing portion 411 on the push rod 41, and the push rod 41 slides in the slip direction in the slip groove 123. The other end of the push rod 41 drives the actuator 42 through the groove 412 provided thereon. The mating end is slid in the direction of the card, and the actuator 42 is rotated about the shaft 131 to drive the other end of the actuator 42 to the card end to push out the drawer 6 with the electronic card to implement the card ejection action.

本創作電子卡連接器100的執行件42在與推桿41配合的那一端進行了薄型化處理，從而使得這一端的高度降低，可使電子卡連接器100的整體高度降低。The actuator 42 of the present electronic card connector 100 is thinned at the end mated with the push rod 41, so that the height of this end is lowered, and the overall height of the electronic card connector 100 can be lowered.

綜上所述，本創作符合新型專利要件，爰依法提出專利申請。惟，以上該者僅為本創作之較佳實施例，本創作之範圍並不以前述實施例為限，舉凡熟習本案技藝之人士援依本創作之精神所作之等效修飾或變化，皆應涵蓋於以下申請專利範圍內。In summary, this creation is in line with the new patent requirements, and the patent application is filed according to law. However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the foregoing embodiments, and any equivalent modification or change made by a person familiar with the skill of the present invention in accordance with the spirit of the present invention should be It is covered by the following patent application.

100‧‧‧電子卡連接器100‧‧‧electronic card connector

1‧‧‧絕緣本體1‧‧‧Insulating body

11‧‧‧底壁11‧‧‧ bottom wall

111‧‧‧端子槽111‧‧‧Terminal slot

12‧‧‧側壁12‧‧‧ side wall

121‧‧‧收容槽121‧‧‧ receiving trough

123‧‧‧滑移槽123‧‧‧Slip groove

124‧‧‧限位孔124‧‧‧Limited holes

125‧‧‧收容槽125‧‧‧ Reception trough

13‧‧‧凸台13‧‧‧Boss

131‧‧‧轉軸131‧‧‧ shaft

14‧‧‧偵測端子槽14‧‧‧Detecting terminal slot

2‧‧‧端子2‧‧‧ terminals

21‧‧‧訊號端子21‧‧‧ Signal Terminal

23‧‧‧偵測端子23‧‧‧Detection terminal

230‧‧‧固定部230‧‧‧ Fixed Department

231‧‧‧接觸部231‧‧‧Contacts

3‧‧‧鎖扣元件3‧‧‧Locking elements

31‧‧‧鎖扣部31‧‧‧Locking Department

4‧‧‧退卡機構4‧‧‧Retirement agency

41‧‧‧推桿41‧‧‧Put

411‧‧‧推壓部411‧‧‧Pushing Department

412‧‧‧凹槽412‧‧‧ Groove

413‧‧‧限位部413‧‧‧Limited

42‧‧‧執行件42‧‧‧Execution

421‧‧‧樞轉孔421‧‧‧ pivot hole

423‧‧‧缺部423‧‧‧ missing

424‧‧‧末端部424‧‧‧End

5‧‧‧遮蔽殼體5‧‧‧Shaded housing

6‧‧‧抽屜座6‧‧‧Drawer

100‧‧‧電子卡連接器 100‧‧‧electronic card connector

121‧‧‧收容槽 121‧‧‧ receiving trough

131‧‧‧轉軸 131‧‧‧ shaft

2‧‧‧端子 2‧‧‧ terminals

230‧‧‧固定部 230‧‧‧ Fixed Department

231‧‧‧接觸部 231‧‧‧Contacts

3‧‧‧鎖扣元件 3‧‧‧Locking elements

41‧‧‧推桿 41‧‧‧Put

424‧‧‧末端部 424‧‧‧End

5‧‧‧遮蔽殼體 5‧‧‧Shaded housing

Claims (10)

一種電子卡連接器，用以承載一電子卡，其包括：
絕緣本體；
複數導電端子，其固定於絕緣本體上，
遮蔽殼體，其與絕緣本體相配合並形成有容納電子卡的收容空間；及
退卡機構，係固定於絕緣本體，且包括安裝於絕緣本體一側的推桿及樞轉安裝於絕緣本體的插卡方向末端藉推桿推動而作動旋轉進而將電子卡自收容空間推出的執行件；
其中所述執行件與推桿配合的那一端的底面被薄型化處理後形成一缺部，使得執行件與推桿配合的那一端較相對的另一端要薄。 An electronic card connector for carrying an electronic card, comprising:
Insulating body
a plurality of conductive terminals fixed to the insulative body
The shielding case is matched with the insulating body and formed with a receiving space for accommodating the electronic card; and the card ejecting mechanism is fixed to the insulating body, and includes a push rod mounted on one side of the insulating body and pivotally mounted on the insulating body. An actuator that is pushed by the push rod to be rotated by the push rod to push the electronic card out of the receiving space;
The bottom surface of the end of the actuator and the push rod is thinned to form a missing portion, so that the end of the actuator that is engaged with the push rod is thinner than the opposite end. 如申請專利範圍第1項所述之電子卡連接器，其中所述推桿一端彎折形成有推壓部，推桿遠離推壓部的另一端自上而下凹陷形成有凹槽，推桿的下表面向下突出形成一限位部。The electronic card connector of claim 1, wherein the push rod is bent at one end to form a pressing portion, and the other end of the push rod away from the pressing portion is recessed from the top to the bottom to form a groove, the push rod The lower surface of the lower surface protrudes downward to form a limiting portion. 如申請專利範圍第2項所述之電子卡連接器，其中所述執行件的缺部放置在推桿的凹槽內且可被凹槽在前後方向上限制。The electronic card connector of claim 2, wherein the missing portion of the actuator is placed in a recess of the push rod and is constrained by the recess in the front-rear direction. 如申請專利範圍第3項所述之電子卡連接器，其中所述執行件中部挖設有樞轉孔，執行件遠離推桿的一端相較於與推桿配合的那一端在前後方向上更遠離樞轉孔。The electronic card connector of claim 3, wherein the middle portion of the actuator is provided with a pivot hole, and the end of the actuator away from the push rod is more in the front-rear direction than the end mated with the push rod. Keep away from the pivot hole. 如申請專利範圍第4項所述之電子卡連接器，其中所述執行件的薄型化係通過鍛壓來形成缺部，執行件與推桿配合的那一端較薄，使得執行件放置在推桿上後其突出於絕緣本體的高度降低。The electronic card connector of claim 4, wherein the thinning of the actuator is formed by forging to form a missing portion, and the end of the actuator engaged with the push rod is thin, so that the actuator is placed on the push rod After it is up, its height protruding from the insulating body is lowered. 如申請專利範圍第5項所述之電子卡連接器，其中所述絕緣本體具有一底壁及沿底壁兩側垂直向上延伸形成的兩側壁，絕緣本體的後部由底壁垂直向上凸設有一凸台，該凸台在橫向方向上位於底壁的一側。The electronic card connector of claim 5, wherein the insulative housing has a bottom wall and two side walls extending vertically upwards on both sides of the bottom wall, and a rear portion of the insulative housing is vertically protruded from the bottom wall. A boss that is located on one side of the bottom wall in the lateral direction. 如申請專利範圍第6項所述之電子卡連接器，其中所述絕緣本體的一個側壁自上而下形成有收容槽，該收容槽靠近絕緣本體後部的凸台。The electronic card connector of claim 6, wherein a side wall of the insulative housing is formed with a receiving groove from the top to the bottom, and the receiving groove is adjacent to the boss of the rear portion of the insulative housing. 如申請專利範圍第7項所述之電子卡連接器，其中所述側壁的中部開設有一滑移槽，所述滑移槽與收容槽位於同一個側壁上且貫穿側壁的插卡前端面，滑移槽在位於插卡末端處向下貫穿底壁形成有長方形的限位孔。The electronic card connector of claim 7, wherein a sliding slot is defined in a middle portion of the side wall, and the sliding slot is located on the same side wall as the receiving slot and extends through the front end surface of the card. The trough is formed with a rectangular limiting hole at a position penetrating the bottom wall at the end of the card. 如申請專利範圍第8項所述之電子卡連接器，其中所述凸台的上表面向上突出形成有一轉軸，執行件位於絕緣本體後部的凸臺上，凸臺上的轉軸***執行件的樞轉孔中。The electronic card connector of claim 8, wherein the upper surface of the boss protrudes upward to form a rotating shaft, and the actuator is located on a boss at the rear of the insulating body, and the rotating shaft on the boss is inserted into the pivot of the actuator. In the hole. 如申請專利範圍第9項所述之電子卡連接器，其中所述執行件與凹槽配合的那一端的末端部橫向延伸進入絕緣本體的收容槽內，該末端部可在推桿的帶動下在收容槽內沿前後方向滑動。The electronic card connector of claim 9, wherein the end portion of the end of the actuator that engages with the groove extends laterally into the receiving groove of the insulative housing, and the end portion can be driven by the push rod Slide in the front and rear direction in the housing groove.