TW202100400A - Bicycle brake lever - Google Patents
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Abstract
Description
本發明係關於一種自行車煞車把手,特別是一種具有外徑不同之二活塞的自行車煞車把手。The invention relates to a bicycle brake handle, particularly a bicycle brake handle with two pistons with different outer diameters.
近年來自行車的市場蓬勃發展,無論是競賽型的高階自行車,或是作為代步工具及休閒娛樂的大眾型自行車,都受到消費者的喜愛,促使廠商更加重視使用者對於自行車功能的需求,而在車體材料及配備功能上不斷地改善精進,但目前自行車仍有需要改善之處。In recent years, the bicycle market has been booming. Whether it is a high-end racing bicycle or a popular bicycle used as a means of transportation and leisure entertainment, it has been favored by consumers, prompting manufacturers to pay more attention to the needs of users for bicycle functions. The body materials and equipment functions continue to improve, but there are still areas for improvement in bicycles.
以自行車的煞車來說,用於制動車輪的卡鉗是經由煞車把手來控制,且煞車把手是透過液壓油控制卡鉗。當煞車把手之煞車拉桿被按壓時,會帶動煞車把手內的活塞移動而推動液壓油,接著液壓油會致動卡鉗,來讓卡鉗夾持煞車盤以制動車輪。為了使卡鉗迅速夾持煞車盤,目前常見的作法大多是加大煞車把手內之活塞的外徑。然而,加大活塞的外徑會使得活塞受到液壓油作用的面積增加,故需以較大的力量按壓煞車拉桿才可令活塞產生足夠的油壓來維持卡鉗的夾持力,而使得煞車拉桿的按壓手感降低。因此,如何兼具讓卡鉗迅速夾持煞車盤及煞車拉桿具有較佳的按壓手感實為此領域研發人員待解決之問題之一。For bicycle brakes, the calipers used to brake the wheels are controlled by the brake handles, and the brake handles are controlled by hydraulic oil. When the brake lever of the brake lever is pressed, the piston in the brake lever will move to push the hydraulic oil, and then the hydraulic oil will actuate the caliper so that the caliper clamps the brake disc to brake the wheel. In order to enable the caliper to quickly clamp the brake disc, the current common practice is to enlarge the outer diameter of the piston in the brake handle. However, increasing the outer diameter of the piston will increase the area that the piston is exposed to by the hydraulic oil. Therefore, it is necessary to press the brake lever with greater force to make the piston generate enough oil pressure to maintain the clamping force of the caliper, and the brake lever The pressing feel is reduced. Therefore, how to make the caliper quickly clamp the brake disc and the brake lever to have a better pressing feel is one of the problems to be solved by the researchers in this field.
本發明在於提供一種自行車煞車把手,藉以解決先前技術中所述之加大活塞之外徑的設計難以兼具讓卡鉗迅速夾持煞車盤及煞車拉桿具有良好的按壓手感的問題。The present invention is to provide a bicycle brake handle to solve the problem that the design of increasing the outer diameter of the piston described in the prior art is difficult to simultaneously allow the caliper to quickly clamp the brake disc and the brake lever to have a good pressing feel.
本發明之一實施例所揭露之一種自行車煞車把手,包含一把手本體、一煞車拉桿、一第一活塞、一第二活塞及一第一彈性件。把手本體具有一第一容置槽、一第二容置槽及一出油口。第一容置槽位於第二容置槽及出油口之間,出油口連通第一容置槽遠離第二容置槽的一側。煞車拉桿樞設於把手本體。第一活塞連接於煞車拉桿,且第一活塞至少部分位於第二容置槽。第二活塞位於第二容置槽,並套設於第一活塞,第二活塞之外徑大於第一活塞的外徑,第二活塞可相對第一活塞移動。第一彈性件位於第二容置槽,並位於第二活塞遠離第一容置槽的一側,且第一彈性件的相對二端分別連接第二活塞及第一活塞。當第一活塞從一初始位置朝出油口移動的距離小於一預定距離時,第一容置槽連通於第二容置槽,且第一活塞透過第一彈性件一併帶動第二活塞移動。當第一活塞從初始位置朝出油口移動的距離大於預定距離時,第一活塞令第一容置槽與第二容置槽不連通,且第一活塞相對第二活塞移動並壓縮第一彈性件。A bicycle brake handle disclosed in an embodiment of the present invention includes a handle body, a brake lever, a first piston, a second piston, and a first elastic member. The handle body has a first containing groove, a second containing groove and an oil outlet. The first accommodating groove is located between the second accommodating groove and the oil outlet, and the oil outlet is connected to a side of the first accommodating groove away from the second accommodating groove. The brake lever is pivoted on the handle body. The first piston is connected to the brake rod, and the first piston is at least partially located in the second accommodating groove. The second piston is located in the second accommodating groove and sleeved on the first piston. The outer diameter of the second piston is larger than the outer diameter of the first piston, and the second piston can move relative to the first piston. The first elastic member is located in the second accommodating groove and on the side of the second piston away from the first accommodating groove, and two opposite ends of the first elastic member are respectively connected to the second piston and the first piston. When the distance that the first piston moves from an initial position toward the oil outlet is less than a predetermined distance, the first accommodating groove is connected to the second accommodating groove, and the first piston drives the second piston to move together through the first elastic member . When the distance of the first piston moving from the initial position toward the oil outlet is greater than the predetermined distance, the first piston causes the first accommodating groove to be disconnected from the second accommodating groove, and the first piston moves relative to the second piston and compresses the first Elastic pieces.
根據上述實施例之自行車煞車把手,由於第二活塞的外徑大於第一活塞的外徑,且當第一活塞從初始位置移動的距離小於預定距離時,第一容置槽連通於第二容置槽,且第二活塞與第一活塞同動,故按壓煞車拉桿以帶動第一活塞移動小於預定距離的距離時,第一活塞及第二活塞會一同推動液壓油,而迅速地致動與出油口連接的自行車煞車卡鉗進行煞車。According to the bicycle brake handle of the above embodiment, since the outer diameter of the second piston is greater than the outer diameter of the first piston, and when the distance of the first piston moving from the initial position is less than the predetermined distance, the first accommodating groove is connected to the second accommodating The second piston moves simultaneously with the first piston. Therefore, when the brake lever is pressed to drive the first piston to move a distance less than a predetermined distance, the first piston and the second piston will push the hydraulic oil together to quickly actuate and The bicycle brake caliper connected to the oil outlet performs braking.
此外,由於在第一活塞從初始位置移動的距離大於預定距離的狀況下,第一容置槽與第二容置槽不連通,且第一活塞相對第二活塞移動並壓縮第一彈性件,故在第一活塞移動的距離大於預定距離之後,是僅透過外徑較小之第一活塞對於液壓油加壓。因此,施予煞車拉桿較小的力即可令第一活塞產生足夠的油壓,以維持卡鉗的夾持力,故可維持煞車拉桿的按壓手感。In addition, since the first accommodating groove is not connected with the second accommodating groove under the condition that the distance of the first piston moving from the initial position is greater than the predetermined distance, and the first piston moves relative to the second piston and compresses the first elastic member, Therefore, after the moving distance of the first piston is greater than a predetermined distance, the hydraulic oil is pressurized only through the first piston with a smaller outer diameter. Therefore, applying a small force to the brake lever can cause the first piston to generate sufficient oil pressure to maintain the clamping force of the caliper, so that the pressing feel of the brake lever can be maintained.
請參閱圖1至圖4。圖1為根據本發明第一實施例之自行車煞車把手的立體示意圖。圖2為圖1的分解示意圖。圖3為沿圖1之其中一割面線的剖視示意圖。圖4為沿圖1之另一割面線的剖視示意圖。Please refer to Figure 1 to Figure 4. Fig. 1 is a perspective view of a bicycle brake handle according to a first embodiment of the present invention. Figure 2 is an exploded schematic diagram of Figure 1. Fig. 3 is a schematic cross-sectional view taken along one of the cutting plane lines of Fig. 1. Fig. 4 is a schematic cross-sectional view taken along another cutting line of Fig. 1.
本實施例揭露了一自行車煞車把手1。自行車煞車把手1例如為自行車的右煞車把手。自行車煞車把手1包含一把手本體10、一煞車拉桿20、一第一活塞30、一第二活塞40及一第一彈性件50。在本實施例或其他實施例中,自行車煞車把手1還可包含一油槽蓋60、一連桿70、一密封環80、一固定件90、一止擋環100及一第二彈性件110。This embodiment discloses a
把手本體10具有一第一容置槽11、一第二容置槽12、一出油口13、三連通口14、15、16及一儲油槽17。第一容置槽11位於第二容置槽12及出油口13之間,且出油口13連通第一容置槽11遠離第二容置槽12的一側。在本實施例中,出油口13例如與自行車煞車卡鉗(未繪示)連通,且自行車煞車卡鉗用以夾持與車輪同動的煞車盤。連通口14較二連通口15、16靠近第一容置槽11,且二連通口15、16至出油口13的距離例如相等,儲油槽17透過三連通口14、15、16連通第二容置槽12。油槽蓋60裝設於把手本體10,且油槽蓋60遮蔽儲油槽17。The
煞車拉桿20樞設於把手本體10。第一活塞30的部分位於第二容置槽12。第一活塞30遠離出油口13的一端透過連桿70連接於煞車拉桿20。第一活塞30具有一端面31、一環側壁面32、一凹槽33及二旁通孔34。端面31面向出油口13,環側壁面32連接端面31。凹槽33自端面31沿第一活塞30的軸向延伸,且凹槽33連通第一容置槽11。二旁通孔34自環側壁面32沿第一活塞30的徑向延伸,二旁通孔34透過凹槽33連通第一容置槽11。The
密封環80位於第一容置槽11及第二容置槽12之間,且把手本體10及第一活塞30沿密封環80之徑向夾持密封環80。固定件90位於密封環80與第二容置槽12之間,並與把手本體10沿密封環80之軸向夾持密封環80。第一活塞30可移動地穿設於固定件90,且固定件90具有一環形內壁面91。固定件90的環形內壁面91面向第一活塞30,且固定件90的環形內壁面91與第一活塞30之間具有一縫隙120,此縫隙120連通第二容置槽12。The
第二活塞40位於第二容置槽12,且整體第二活塞40之外徑D1大於第一活塞30的外徑D2。第二活塞40包含一主體41、一內密封環42、一第一外密封環43及一第二外密封環44。第二活塞40之主體41套設於第一活塞30,且主體41可相對第一活塞30移動。內密封環42被夾設於第一活塞30及主體41之間。第一外密封環43及第二外密封環44套設於主體41並被夾設於主體41及把手本體10之間,且第一外密封環43較第二外密封環44遠離第一容置槽11。在本實施例中,三連通口14、15、16皆位於第一外密封環43鄰近第一容置槽11的一側。藉此,第二外密封環44可避免液壓油進入第二活塞40遠離第一容置槽11之一側。The
在本實施例中,第一活塞30遠離第一容置槽11之一側還具有一凸緣35。第一彈性件50套設於第一活塞30,且第一彈性件50的相對二端分別抵靠凸緣35及第二活塞40的主體41。止擋環100裝設於第一活塞30並位於第二活塞40遠離第一彈性件50的一側,並用以止擋第二活塞40。In this embodiment, the
此外,把手本體10還具有一槽底面18。槽底面18面向第一容置槽11,並位於第一容置槽11及出油口13的連接處。第二彈性件110的部分位於第一容置槽11,且第二彈性件110之另一部分位於第一活塞30之凹槽33。第二彈性件110的相對二端分別抵靠槽底面18及第一活塞30,用以提供第一活塞30朝遠離出油口13之方向的作用力。In addition, the
在本實施例中,使用者可按壓於煞車拉桿20,使得煞車拉桿20相對把手本體10樞轉而透過連桿70帶動第一活塞30,來讓第一活塞30從一初始位置P1朝出油口13移動。In this embodiment, the user can press the
如圖4所示,當第一活塞30位於初始位置P1時,第一彈性件50令第二活塞40之主體41抵靠於止擋環100。此時,二旁通孔34位於密封環80及第二活塞40之間,且二旁通孔34透過縫隙120連通第二容置槽12,來讓第一容置槽11連通第二容置槽12。As shown in FIG. 4, when the
接著,請參閱圖5,圖5為圖4之第一活塞移動之距離小於預定距離的剖視示意圖。Next, please refer to FIG. 5, which is a schematic cross-sectional view of the first piston moving distance of FIG. 4 less than a predetermined distance.
當第一活塞30從初始位置P1朝出油口13移動的距離小於一預定距離Ta時,第一活塞30會壓縮第二彈性件110,且二旁通孔34仍是位於密封環80及第二活塞40之間,使得二旁通孔34仍可透過縫隙120連通第二容置槽12,來讓第一容置槽11連通於第二容置槽12。也就是說,在二旁通孔34尚未被密封環80遮蔽之前,第一容置槽11與第二容置槽12為相連通的狀態。且,在這樣的情況下,由於第一容置槽11連通於第二容置槽12,故移動的第一活塞30會透過第一彈性件50帶動第二活塞40移動,使得第一活塞30及第二活塞40一同推動液壓油,而迅速致動自行車煞車卡鉗夾持煞車盤,以進行煞車。When the distance the
此外,當第一活塞30從初始位置P1以小於預定距離Ta之距離朝出油口13移動時,第二外密封環44會通過連通口14,而使儲油槽17(如圖3所示)與第二容置槽12中位於第二外密封環44鄰近第一容置槽11之一側的部分不連通,故可確保第二活塞40所推動的液壓油集中傳遞至出油口13,而不會分散至儲油槽17(如圖3所示)。In addition, when the
接著,請參閱圖6及圖7,圖6為圖4之第一活塞移動之距離等於預定距離的剖視示意圖。圖7為圖4之第一活塞移動之距離大於預定距離的剖視示意圖。Next, please refer to FIGS. 6 and 7. FIG. 6 is a schematic cross-sectional view of the first piston moving distance of FIG. 4 equal to a predetermined distance. FIG. 7 is a schematic cross-sectional view of the distance moved by the first piston of FIG. 4 greater than a predetermined distance.
如圖6所示,當第一活塞30繼續移動而從初始位置P1朝出油口13移動的距離等於預定距離Ta時,第一活塞30之二旁通孔34會被密封環80遮蔽,而使二旁通孔34與縫隙120不連通,從而讓第一容置槽11與第二容置槽12不連通。接著,如圖7所示,在第一活塞30再繼續朝出油口13移動的情況下,第一容置槽11與第二容置槽12仍保持於不連通,且第一活塞30會相對第二活塞40移動並壓縮第一彈性件50。As shown in FIG. 6, when the
在本實施例中,由於在第一活塞30從初始位置P1移動的距離大於預定距離Ta的狀況下,第一容置槽11與第二容置槽12不連通,且第一活塞30相對第二活塞40移動並壓縮第一彈性件50,故在第一活塞30移動的距離大於預定距離Ta之後,是僅透過外徑較小之第一活塞30對於液壓油加壓。因此,施予煞車拉桿20(如圖2所示)較小的力即可令第一活塞30產生足夠的油壓,以維持卡鉗的夾持力,故可維持煞車拉桿20的按壓手感。In this embodiment, since the
當使用者放開煞車拉桿20之後,被壓縮的第一彈性件50及第二彈性件110即會回彈,而帶動第一活塞30回到初始位置P1,且第二活塞40再次抵靠於止擋環100。When the user releases the
在本實施例中,自行車煞車把手1包含有固定件90的設置,並非用以限定本發明。在其他實施例中,自行車煞車把手可無固定件。In this embodiment, the bicycle brake handle 1 includes the fixing
此外,自行車煞車把手1並不限包含有止擋環100。在其他實施例中,自行車煞車把手可無止擋環。In addition, the bicycle brake handle 1 is not limited to include a
另外,旁通孔34是經由凹槽33而間接連通於第一容置槽11,但並不以此為限。在其他實施例中,旁通孔可直接連通於第一容置槽。In addition, the
接著,請參閱圖8,圖8為根據本發明第二實施例之自行車煞車把手的剖視示意圖。Next, please refer to FIG. 8, which is a schematic cross-sectional view of a bicycle brake handle according to a second embodiment of the present invention.
本實施例揭露了另一自行車煞車把手。本實施例之自行車煞車把手類似於第一實施例的自行車煞車把手1,以下僅會針對二者之間的差異之處進行說明,關於相同及相似的部分則不再贅述。This embodiment discloses another bicycle brake handle. The bicycle brake handle of this embodiment is similar to the bicycle brake handle 1 of the first embodiment. The following will only describe the differences between the two, and the same and similar parts will not be repeated.
在本實施例之自行車煞車把手中,第一活塞30a包含相連的一頭部31a及一身部32a。身部32a的部分位於把手本體10a的第二容置槽12a。第二活塞40a套設於身部32a,第一彈性件50a之一端連接於身部32a遠離第一容置槽11a的一端。第一活塞30a之頭部31a的外徑自鄰近把手本體10a之出油口13a的一側朝遠離出油口13a的一側漸增。In the bicycle brake handle of this embodiment, the
密封環80a具有一穿孔81a,且穿孔81a之孔徑自鄰近出油口13a的一側朝遠離出油口13a的一側漸增。第一活塞30之頭部31a之部分的外徑小於穿孔81a的最小孔徑H1,身部32a的外徑D3大於或等於穿孔81a的最小孔徑H1。固定件90a具有一通孔92a,且通孔92a的最小孔徑H2大於第一活塞30a之身部32a的外徑D3。The sealing
當第一活塞30a位於初始位置P2時,第一活塞30a之頭部31a的部分位於穿孔81a,頭部31a之另一部分及身部32a的部分位於通孔92a,且第一活塞30a之頭部31a與密封環80a之間有一縫隙120a。此時,第一容置槽11a透過縫隙120a連通第二容置槽12a。When the
接著,請參閱圖9,圖9為圖8之第一活塞移動之距離小於預定距離的剖視示意圖。Next, please refer to FIG. 9. FIG. 9 is a schematic cross-sectional view of the movement distance of the first piston of FIG. 8 being less than a predetermined distance.
當第一活塞30a從初始位置P2朝出油口13a移動的距離小於預定距離Tb時,雖然縫隙120a已經變小,但縫隙120a仍使第一容置槽11a及第二容置槽12a連通,故同動的第一活塞30a及第二活塞40a可迅速地致動自行車煞車卡鉗進行煞車。When the distance that the
接著,請參閱圖10及圖11。圖10為圖8之第一活塞移動之距離等於預定距離的剖視示意圖。圖11為圖8之第一活塞移動之距離大於預定距離的剖視示意圖。Next, please refer to Figure 10 and Figure 11. Fig. 10 is a schematic cross-sectional view of the distance moved by the first piston of Fig. 8 equal to a predetermined distance. Fig. 11 is a schematic cross-sectional view of the distance moved by the first piston of Fig. 8 greater than a predetermined distance.
如圖10所示,當第一活塞30a從初始位置P2朝出油口13a移動的距離等於預定距離Tb時,第一活塞30a之頭部31a填補縫隙120a(如圖9所示),而令第一容置槽11a與第二容置槽12a不連通。接著,如圖11所示,在第一活塞30a繼續朝出油口13a移動的情況下,第一容置槽11a與第二容置槽12a仍保持於不連通,且第一活塞30a會相對第二活塞40a移動並壓縮第一彈性件50a,且第一活塞30a之身部32a會貫穿穿孔81a及通孔92a。As shown in Figure 10, when the
在本實施例中,在第一活塞30a位於初始位置P2的狀況下,第一活塞30a之頭部31a及身部32a的位置並非用以限定本發明。在其他實施例中,在第一活塞位於初始位置的狀況下,第一活塞之頭部及身部可完全位於第二容置槽。In this embodiment, when the
在前述實施例中,自行車煞車把手為右煞車把手,但並不以此為限。在其他實施例中,自行車煞車把手可以是左煞車把手。In the foregoing embodiment, the bicycle brake handle is the right brake handle, but it is not limited to this. In other embodiments, the bicycle brake handle may be a left brake handle.
根據上述實施例之自行車煞車把手,由於第二活塞的外徑大於第一活塞的外徑,且當第一活塞從初始位置移動的距離小於預定距離時,第一容置槽連通於第二容置槽,且第二活塞與第一活塞同動,故按壓煞車拉桿以帶動第一活塞移動小於預定距離的距離時,第一活塞及第二活塞可一同推動液壓油,而迅速地致動與出油口連接的自行車煞車卡鉗夾持煞車盤,以進行煞車。According to the bicycle brake handle of the above embodiment, since the outer diameter of the second piston is greater than the outer diameter of the first piston, and when the distance of the first piston moving from the initial position is less than the predetermined distance, the first accommodating groove is connected to the second accommodating The second piston moves simultaneously with the first piston, so when the brake lever is pressed to drive the first piston to move a distance less than a predetermined distance, the first piston and the second piston can push the hydraulic oil together to quickly actuate the The bicycle brake caliper connected to the oil outlet clamps the brake disc for braking.
此外,由於在第一活塞從初始位置移動的距離大於預定距離的狀況下,第一容置槽與第二容置槽不連通,且第一活塞相對第二活塞移動並壓縮第一彈性件,故在第一活塞移動的距離大於預定距離之後,是僅透過外徑較小之第一活塞對於液壓油加壓。因此,施予煞車拉桿較小的力即可令第一活塞產生足夠的油壓,以維持卡鉗的夾持力,故可維持煞車拉桿的按壓手感。In addition, since the first accommodating groove is not connected with the second accommodating groove under the condition that the distance of the first piston moving from the initial position is greater than the predetermined distance, and the first piston moves relative to the second piston and compresses the first elastic member, Therefore, after the moving distance of the first piston is greater than a predetermined distance, the hydraulic oil is pressurized only through the first piston with a smaller outer diameter. Therefore, applying a small force to the brake lever can cause the first piston to generate sufficient oil pressure to maintain the clamping force of the caliper, so that the pressing feel of the brake lever can be maintained.
雖然本發明以前述之諸項實施例揭露如上,然其並非用以限定本發明,任何熟習相像技藝者,在不脫離本發明之精神和範圍內,當可作些許之更動與潤飾,因此本發明之專利保護範圍須視本說明書所附之申請專利範圍所界定者為準。Although the present invention is disclosed in the foregoing embodiments as described above, it is not intended to limit the present invention. Anyone familiar with similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection for inventions shall be determined by the scope of patent applications attached to this specification.
1:自行車煞車把手
10、10a:把手本體
11、11a:第一容置槽
12、12a:第二容置槽
13、13a:出油口
14、15、16:連通口
17:儲油槽
18:槽底面
20:煞車拉桿
30、30a:第一活塞
31:端面
32:環側壁面
33:凹槽
34:旁通孔
35:凸緣
31a:頭部
32a:身部
40、40a:第二活塞
41:主體
42:內密封環
43:第一外密封環
44:第二外密封環
50、50a:第一彈性件
60:油槽蓋
70:連桿
80、80a:密封環
81a:穿孔
90、90a:固定件
91:環形內壁面
92a:通孔
100:止擋環
110:第二彈性件
120、120a:縫隙
D1、D2、D3:外徑
P1、P2:位置
Ta、Tb:距離
H1、H2:孔徑1: Bicycle brake handle
10.10a: Handle
圖1為根據本發明第一實施例之自行車煞車把手的立體示意圖。 圖2為圖1的分解示意圖。 圖3為沿圖1之其中一割面線的剖視示意圖。 圖4為沿圖1之另一割面線的剖視示意圖。 圖5為圖4之第一活塞移動之距離小於預定距離的剖視示意圖。 圖6為圖4之第一活塞移動之距離等於預定距離的剖視示意圖。 圖7為圖4之第一活塞移動之距離大於預定距離的剖視示意圖。 圖8為根據本發明第二實施例之自行車煞車把手的剖視示意圖。 圖9為圖8之第一活塞移動之距離小於預定距離的剖視示意圖。 圖10為圖8之第一活塞移動之距離等於預定距離的剖視示意圖。 圖11為圖8之第一活塞移動之距離大於預定距離的剖視示意圖。Fig. 1 is a perspective view of a bicycle brake handle according to a first embodiment of the present invention. Figure 2 is an exploded schematic diagram of Figure 1. Fig. 3 is a schematic cross-sectional view taken along one of the cutting plane lines of Fig. 1. Fig. 4 is a schematic cross-sectional view taken along another cutting line of Fig. 1. Fig. 5 is a schematic cross-sectional view of the first piston moving distance of Fig. 4 less than a predetermined distance. Fig. 6 is a schematic cross-sectional view of the distance moved by the first piston of Fig. 4 equal to a predetermined distance. FIG. 7 is a schematic cross-sectional view of the distance moved by the first piston of FIG. 4 greater than a predetermined distance. 8 is a schematic cross-sectional view of a bicycle brake handle according to a second embodiment of the present invention. Fig. 9 is a schematic cross-sectional view of Fig. 8 where the distance moved by the first piston is less than a predetermined distance. Fig. 10 is a schematic cross-sectional view of the distance moved by the first piston of Fig. 8 equal to a predetermined distance. Fig. 11 is a schematic cross-sectional view of the distance moved by the first piston of Fig. 8 greater than a predetermined distance.
1:自行車煞車把手 1: Bicycle brake handle
10:把手本體 10: Handle body
20:煞車拉桿 20: Brake lever
60:油槽蓋 60: oil tank cover
70:連桿 70: connecting rod
Claims (17)
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TW108122326A TWI699307B (en) | 2019-06-26 | 2019-06-26 | Bicycle brake lever |
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TW108122326A TWI699307B (en) | 2019-06-26 | 2019-06-26 | Bicycle brake lever |
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TWI699307B TWI699307B (en) | 2020-07-21 |
TW202100400A true TW202100400A (en) | 2021-01-01 |
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TWI783527B (en) * | 2021-06-16 | 2022-11-11 | 彥豪金屬工業股份有限公司 | Bicycle brake lever assembly |
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TWM251785U (en) * | 2003-11-28 | 2004-12-01 | China Fineblanking Technology | Buffering mechanism for hydraulic brake |
CN101676172B (en) * | 2008-09-19 | 2012-03-21 | 永克达工业股份有限公司 | Hydraulic brake handle group |
TW201247474A (en) * | 2011-05-31 | 2012-12-01 | Tektro Technology Corp | Hydraulic lever set with two pistons |
CN103253336B (en) * | 2012-02-17 | 2016-01-27 | 亨通机械股份有限公司 | Master cylinder |
TW201716275A (en) * | 2015-11-02 | 2017-05-16 | 彥豪金屬工業股份有限公司 | A hydraulic brake device for handle stem |
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