鏈條工具Chain tool
本發明係與用以拆裝鏈條之工具結構有關，尤指一種容易攜帶且兼具有多功能用途之鏈條工具。
The invention relates to a tool structure for disassembling a chain, in particular to a chain tool which is easy to carry and has a multi-purpose use.
按，鏈條為一種在機械中常見之傳動工具，透過鏈條的連結而可使軸與軸之間進行傳動。在自行車領域中，係以鏈條套設在輪軸與曲柄的轉軸所設之齒盤，而當曲柄因踩踏動作而帶動輪軸轉動時，即可透過鏈條傳動而帶動輪軸旋轉，進而讓自行車之車輪在路面行駛。
又傳統於自行車使用之鏈條，係以多數的鏈節以銷件組接構成，若欲拆卸維修或清洗時，必須以專用的工具將銷件由二鏈節間拆離，惟傳統之鏈條拆裝不易，故有改良式可快速拆裝之鏈節出現。
如第１０圖所示，為習用之可快速拆裝之鏈節，主要係於鏈條９扣合的兩端設有二外鏈板９１於對稱的兩側，各外鏈板９１分別具有一銷件９２與一穿孔９３，且穿孔９３具有一大徑段９３１與一小徑段９３２。
前述鏈條９兩端以該二外鏈板９１組裝時，各外鏈板９１之銷件９２置入另一外鏈板９１之穿孔９３之大徑段９３１，再以一鉗具（圖中未示）靠著外鏈板９１兩側鏈節之滾子９５，並對鉗具出力而使兩側鏈節之滾子９５相互遠離，而使銷件９２由大徑段９３１移至小徑段９３２後固定，即完成鏈條９兩端之扣合。
反之，當欲將扣合之鏈條９兩端拆離時，如第１１圖所示，則需另以一鉗具９６反向靠著前述外鏈板９１兩側鏈節之滾子９５，並對鉗具９６出力而使兩側鏈節之滾子９５相互靠近，而使銷件９２由小徑段９３２移至大徑段９３１，即可將銷件９２由大徑段９３１中退出，以完成鏈條９兩端之分離。
然而，上述鏈條兩端之扣合與分離，必須由兩種不同的鉗具分別完成，而兩把不同之鉗具除了攜帶時佔空間之問題外，使用時也會因結構相似而有混淆誤拿及誤用的問題，造成使用上之不便；再者，以騎乘自行車為例，騎乘者都是儘可能的希望能減少其騎乘時之負重，因此並不可能攜帶過多工具在身上。
有鑑於此，故如何解決上述習用鏈條工具所存在之問題，即為本發明之主要課題。
According to the chain, the chain is a common transmission tool in the machine, which can be driven between the shaft and the shaft through the connection of the chain. In the bicycle field, the chain is sleeved on the axle of the axle and the crankshaft of the crank, and when the crank drives the axle to rotate due to the pedaling action, the axle can be rotated by the chain transmission, so that the wheel of the bicycle is Driving on the road.
The chain that is traditionally used in bicycles is composed of a plurality of chain links, and if it is to be disassembled for maintenance or cleaning, the pin must be detached from the two links by a special tool, but the traditional chain is removed. It is not easy to install, so there are improved links that can be quickly disassembled.
As shown in Fig. 10, the link that can be quickly disassembled and used is mainly provided at the two ends of the chain 9 with two outer chain plates 91 on both sides of the symmetry, and each outer chain plate 91 has a pin respectively. The member 92 has a through hole 93, and the through hole 93 has a large diameter section 931 and a small diameter section 932.
When the two ends of the chain 9 are assembled by the two outer chain plates 91, the pin members 92 of the outer chain plates 91 are placed in the large diameter section 931 of the through hole 93 of the other outer chain plate 91, and then a clamp is used. Shown by the rollers 95 on both sides of the outer chain plate 91, and the forceps of the clamps are made to move the rollers 95 of the two side links away from each other, and the pin member 92 is moved from the large diameter section 931 to the small diameter section. After 932 is fixed, that is, the fastening of both ends of the chain 9 is completed.
On the other hand, when the two ends of the chain 9 are to be detached, as shown in FIG. 11, a pair of clamps 96 are required to be reversely pressed against the rollers 95 of the links on both sides of the outer chain plate 91, and When the forceps 96 is pulled out and the rollers 95 of the two side links are brought close to each other, and the pin member 92 is moved from the small diameter section 932 to the large diameter section 931, the pin member 92 can be withdrawn from the large diameter section 931 to The separation of the ends of the chain 9 is completed.
However, the fastening and separation of the two ends of the chain must be completed by two different clamps, and the two different clamps have a problem of occupying space, and the use of the clamps may be confused due to structural similarity. The problem of misuse and misuse is inconvenient to use; further, riding a bicycle, for example, the rider is as hoping to reduce the load when riding, so it is impossible to carry too many tools on the body.
In view of this, how to solve the problems of the above conventional chain tool is the main subject of the present invention.
本發明之主要目的，即在於提供一種鏈條工具，其係具有容易攜帶且兼具有多功能用途之功效。
為達前述之目的，本發明提供一種鏈條工具，其具有兩個桿件，該二桿件可交叉樞接在一起，其中，每一桿件分別包括有一第一端以及一與該第一端相反之第二端，該第一端設有一可供插入於一鏈條之鏈節內的勾部，且該勾部係朝向一側彎曲而形成有一可相對抵接於鏈節內之滾子上的作動面，並於該第一端與第二端之間設有一連結部，該連結部可與另一桿件之連結部相互樞接，使該桿件與另一桿件可以該連結部為軸而相對樞擺。
較佳地，各桿件係皆呈板片狀。
較佳地，至少於其中一桿件第二端之一側開設有一缺口，該缺口具有二呈相對間隔設置之夾掣面。
較佳地，每一桿件分別於其第一端開設有二平行間隔設置之溝槽，使該二溝槽之間形成有該勾部，並於該勾部之兩側分別形成有一與該勾部朝相同方向彎曲之輔助勾部。
較佳地，如每一桿件上之連結部係分別由一開口所構成，且該二桿件分別以其呈開口狀之連結部相對扣接後，使該二桿件可以該連結部為軸而相對進行一樞擺動作。
較佳地，每一桿件係分別於其第一端直接向外凸伸形成有該勾部，並於其第二端之延伸末端形成有一呈勺狀之挖勺部。
較佳地，至少於其中一桿件第二端的一側開設有一缺口，並於該缺口內凸設有一勾持部。
較佳地，其中一桿件之連結部係由一凸柱所構成，該凸柱係與該桿件之延伸方向呈垂直相交，並於該凸柱之延伸末端上形成有二呈相對設置之翼片，而另一桿件之連結部則由一可供該凸柱及其翼片對應穿設之通孔所構成，藉由將該凸柱穿過該通孔並轉動一角度後，可令該凸柱上之二翼片相對抵接於該通孔另一側之外周面上，而使該二桿件相互樞接。
較佳地，每一桿件之連結部係分別由一凸塊以及一與該凸塊反向設置之凹槽所構成，且該凸塊與該凹槽之形狀係相互對應。
而本發明之上述目的與優點，不難從下述所選用實施例之詳細說明與附圖中，獲得深入了解。
The main object of the present invention is to provide a chain tool which is easy to carry and has a multi-functional use.
In order to achieve the foregoing objects, the present invention provides a chain tool having two rod members that are pivotally coupled together, wherein each of the rod members includes a first end and a first end In the opposite second end, the first end is provided with a hook portion for inserting into a chain link of the chain, and the hook portion is bent toward one side to form a roller which can abut against the roller in the chain link. An engaging portion is disposed between the first end and the second end, and the connecting portion is pivotally connected to the connecting portion of the other member, so that the connecting member can be connected to the other member Pivot for the axis.
Preferably, each of the rod members is in the form of a sheet.
Preferably, at least one of the sides of the second end of the rod member is provided with a notch, and the notch has two clamping faces which are disposed at opposite intervals.
Preferably, each of the rods is provided with two parallel spaced grooves at the first end thereof, such that the hook portions are formed between the two grooves, and a pair of the hook portions are respectively formed on the two sides of the hook portion. The auxiliary hook that is bent in the same direction.
Preferably, if the connecting portions on each of the rod members are respectively formed by an opening, and the two rod members are respectively relatively fastened by the connecting portions of the openings, the connecting portions of the two rod members can be The shaft is relatively pivoted.
Preferably, each of the rods has a hook portion formed directly outwardly at a first end thereof, and a scoop-shaped scoop portion is formed at an extending end of the second end thereof.
Preferably, at least one side of the second end of the rod member is provided with a notch, and a hook portion is protruded in the notch.
Preferably, the connecting portion of one of the rods is formed by a protruding column which is perpendicularly intersected with the extending direction of the rod member, and two opposite sides are formed on the extended end of the protruding rod. a wing piece, and the connecting portion of the other rod member is formed by a through hole through which the protruding post and the wing piece are correspondingly disposed, and the protruding post is rotated through the through hole and rotated by an angle. The two fins on the protruding post are abutted against the outer peripheral surface of the other side of the through hole, so that the two rod members are pivotally connected to each other.
Preferably, the connecting portions of each of the rods are respectively formed by a protrusion and a groove disposed opposite to the protrusion, and the shape of the protrusion and the groove correspond to each other.
The above objects and advantages of the present invention will be readily understood from the following detailed description of the embodiments of the invention.
（習用部分）
９‧‧‧鏈條
９１‧‧‧外鏈板
９２‧‧‧銷件
９３‧‧‧穿孔
９３１‧‧‧大徑段
９３２‧‧‧小徑段
９５‧‧‧滾子
９６‧‧‧鉗具
（本發明部分）
１０‧‧‧桿件
１１‧‧‧第一端
１２‧‧‧第二端
１３‧‧‧勾部
１３１‧‧‧作動面
１４‧‧‧連結部
１４１‧‧‧凸柱
１４２‧‧‧翼片
１４３‧‧‧通孔
１４４‧‧‧凸塊
１４５‧‧‧凹槽
１５‧‧‧缺口
１５１‧‧‧夾掣面
１５２‧‧‧勾持部
１６‧‧‧溝槽
１７‧‧‧輔助勾部
１８‧‧‧挖勺部
２０‧‧‧鏈條
２１‧‧‧鏈節
２２‧‧‧滾子(customized part)
9‧‧‧Chain 91‧‧‧External chain plate 92‧‧‧Spinning 93‧‧‧Perforation 931‧‧‧ Large-diameter section 932‧‧‧ Small-diameter section 95‧‧‧Roller 96‧‧‧ clamps ( Part of the invention)
10‧‧‧ rods 11‧‧ ‧ first end 12 ‧ ‧ second end 13 ‧ ‧ hooks 131 ‧ ‧ actuating surface 14 ‧ ‧ joints 141 ‧ ‧ studs 142 ‧ ‧ wings 143‧‧‧Tongkong 144‧‧ ‧Bumps 145‧‧‧ Groove 15‧‧‧Gap 151‧‧‧Clamped 152‧‧‧Hooking Department 16‧‧‧ Groove 17‧‧‧Auxiliary Hook 18‧‧‧digger 20‧‧‧Chain 21‧‧‧Chain 22‧‧‧Roller
第１圖係本發明第一實施例之分解示意圖。
第２圖係本發明第一實施例之使用狀態示意圖。
第３圖係本發明第一實施例於拆解鏈節之作動示意圖。
第４圖係本發明第一實施例於扣合鏈節之作動示意圖。
第５圖係本發明第二實施例之結構示意圖。
第６圖係本發明第三實施例之結構示意圖。
第７圖係本發明第四實施例之連結部結構示意圖。
第８圖係本發明第四實施例之連結部於相互組裝後之結構示意圖。
第９圖係本發明第五實施例之連結部結構示意圖。
第１０圖係習用鏈條以可快速拆裝之鏈節組裝示意圖。
第１１圖係習用鏈條以鉗具拆離鏈節之示意圖。
Fig. 1 is an exploded perspective view showing a first embodiment of the present invention.
Fig. 2 is a view showing the state of use of the first embodiment of the present invention.
Fig. 3 is a schematic view showing the operation of the disassembling link in the first embodiment of the present invention.
Figure 4 is a schematic view showing the actuation of the fastening link of the first embodiment of the present invention.
Figure 5 is a schematic view showing the structure of a second embodiment of the present invention.
Figure 6 is a schematic view showing the structure of a third embodiment of the present invention.
Figure 7 is a schematic view showing the structure of a joint portion of a fourth embodiment of the present invention.
Fig. 8 is a schematic view showing the structure of the joint portion of the fourth embodiment of the present invention after being assembled to each other.
Figure 9 is a schematic view showing the structure of a joint portion of a fifth embodiment of the present invention.
Figure 10 is a schematic diagram of the assembly of the conventional chain with a quick-disassembling link.
Figure 11 is a schematic view of the conventional chain with the pliers removed from the link.
首先請參閱第１～３圖所示，為本發明所提供一種鏈條工具的第一實施例，其主要係由兩個可快速相互樞接呈交叉狀的桿件１０所構成，其中：
該二桿件１０皆呈板片狀，且每一桿件１０分別包括有一第一端１１以及一與該第一端１１相反之第二端１２，並於該第一端１１上設有一可供插入於一鏈條２０之鏈節２１內的勾部１３，且該勾部１３係朝向一側彎曲而形成有一可相對抵接於鏈節２１內之滾子２２上的作動面１３１，並於該第一端１１與第二端１２之間設有一連結部１４，該連結部１４可與另一桿件１０之連結部１４相互快速樞接，使該桿件１０與另一桿件１０可以該連結部１４為軸而相對樞擺，另於該桿件１０第二端１２之一側開設有一缺口１５，該缺口１５具有二呈相對間隔設置之夾掣面１５１，並藉該缺口１５之二夾掣面１５１而可相對靠合於一螺帽（圖中未示）之兩相對側上，以旋鎖該螺帽。而於此第一實施例中，每一桿件１０係分別於其第一端１１開設有二平行間隔設置之溝槽１６，使該二溝槽１６之間形成有該勾部１３，並於該勾部１３之兩側分別形成有一與該勾部１３朝相同方向彎曲之輔助勾部１７，而該連結部１４係由該桿件１０之一側開設有一開口所構成，使該二桿件１０分別以其呈開口狀之連結部１４相對扣接後，該二桿件１０即可以該連結部１４為軸而相對進行一樞擺動作。
而藉由上述結構所組成之本發明第一實施例於實際使用時，如第２、３圖所示，當一鏈條２０的兩端以一可快速拆裝之鏈節２１相扣合，此時若欲將該鏈節２１拆解時，僅需將該二桿件１０第一端１１勾部１３上的作動面１３１轉至相向的位置，再分別以其呈開口狀之連接部１４相互交叉扣接在一起，接著再將該二桿件１０之勾部１３置入鏈條２０之鏈節２１中而分別位在二滾子２２的外側，此時僅需對該二桿件１０之第二端１２施以一相對靠合之施力，該二桿件１０第一端１１勾部１３上之作動面１３１即會因樞擺作用，而抵靠驅使該二滾子２２朝相對靠近的方向位移，以拆解該鏈節２１。
反之，當欲將該鏈節２１再次扣合時，如第４圖所示，使用者僅需將該二桿件１０第一端１１勾部１３上的作動面１３１轉至相背的位置，再分別以其呈開口狀之連接部１４相互交叉扣接在一起，接著再將該二桿件１０之勾部１３置入鏈條２０之鏈節２１中而分別位在二滾子２２的內側，此時使用者僅需對該二桿件１０之第二端１２施以一相對遠離之施力，該二桿件１０第一端１１勾部１３上之作動面１３１即會因樞擺作用，而抵靠驅使該二滾子２２朝相對遠離的方向位移，如此一來，即可將該鏈節２１再次回復至扣合之狀態。
由上述之說明不難發現本發明僅需以呈板片狀之桿件１０相互樞接後，即可構成得同時拆解與扣合鏈節之鏈條工具，且在不使用時可將該二桿件１０以相疊方式收納，因此在與習知用以拆解鏈條鏈節之鉗具相較之下，本發明之鏈條工具更具有不耗佔空間且方便攜帶之優點，且本發明在每一桿件１０第一端１１上之勾部１３兩側更分別形成有一輔助勾部１７，該輔助勾部１７除可保護該勾部１３不易被折斷外，該勾部１３及其位於兩側之輔助勾部１７更可相互構成一勺狀，以作為挖胎棒使用，另於桿件１０之第二端１２上設有可供旋鎖螺帽之缺口１５，使本發明之桿件１０更可同時整合有鏈條工具、挖胎棒及扳手等多種功能用途，如此一來即可讓使用者大幅減少所需攜帶之工具數量，進而有效減少負重。
接著請繼續參閱第５圖，其係為本發明所提供之第二實施例，而其與上述第一實施例之差異係在於，該桿件１０係於其第一端１１上直接向外凸伸形成有該勾部１３，並於該桿件１０第二端１２之延伸末端形成有一呈勺狀之挖勺部１８，並藉此當將二桿件１０以其連結部１４相互交叉樞接後，其第一端１１之勾部１３同樣可用以拆裝鏈條之鏈節，而每一桿件１０第二端１２所形成之挖勺部１８則可個別作為挖胎棒使用。
另如第６圖所示，其係為本發明所提供之第三實施例，而其與上述第一實施例之差異係在於，該桿件１０係於其第二端１２的一側開設有一缺口１５，並於該缺口１５內凸設有一勾持部１５２，進而使該桿件１０之第二端１２可作為開瓶器使用。
接著請繼續參閱第７、８圖，為本發明所提供之第四實施例，其與上述第一實施例之差異在於連結部之結構有所不同，於此第四實施例中，其中一桿件１０之連結部係由一凸柱１４１所構成，該凸柱１４１係與其桿件１０之延伸方向呈垂直相交，並於該凸柱１４１之延伸末端上形成有二呈相對設置之翼片１４２，而另一桿件１０之連結部則由一可供該凸柱１４１及其翼片１４２對應穿設之通孔１４３所構成，藉由將該凸柱１４１穿過該通孔１４３並轉動一角度後，即可使該凸柱１４１上之二翼片１４２相對抵接於該通孔１４３另一側之外周面上，藉此同樣使該二桿件１０可以相當容易組裝及拆卸的方式相互樞接在一起，並可相對進行一樞擺動作。
另如第９圖所示，為本發明所提供之第五實施例，而其與上述第一實施例之差異同樣在於連結部之結構有所不同，於此第五實施例中，每一桿件１０之連結部係分別由一凸塊１４４以及一與該凸塊１４４反向設置之凹槽１４５所構成，且該凸塊１４４與該凹槽１４５之形狀係相互對應，並藉此使其中一桿件１０即得以其凸塊１４４與另一桿件１０之凹槽１４５相對接合後，而相對進行一樞擺動作。
惟，以上各實施例之揭示僅用以說明本發明，並非用以限制本發明，故舉凡等效元件之置換仍應隸屬本發明之範疇。
綜上所述，係可使熟知本項技藝者明瞭本發明的確可達成前述目的，實已符合專利法之規定，故依法提出申請。
Referring first to FIGS. 1 to 3, a first embodiment of a chain tool according to the present invention is mainly composed of two rod members 10 which can be pivotally connected to each other in a fast manner, wherein:
The two rod members 10 are in the form of a plate, and each of the rod members 10 includes a first end 11 and a second end 12 opposite to the first end 11 , and a first end 11 is provided on the first end 11 . a hook portion 13 for inserting into a chain link 21 of a chain 20, and the hook portion 13 is bent toward one side to form an actuating surface 131 which can abut against the roller 22 in the link 21, and A connecting portion 14 is disposed between the first end 11 and the second end 12, and the connecting portion 14 can be quickly pivotally connected to the connecting portion 14 of the other rod member 10, so that the rod member 10 and the other rod member 10 can be The connecting portion 14 is pivoted relative to the shaft, and a notch 15 is formed on one side of the second end 12 of the rod member 10. The notch 15 has two clamping faces 151 disposed at opposite intervals, and the notch 15 is The two clamping faces 151 are relatively close to the opposite sides of a nut (not shown) for locking the nut. In the first embodiment, each of the rods 10 is provided with two parallel spaced grooves 16 at the first end 11 thereof, so that the hook portions 13 are formed between the two grooves 16 and The two sides of the hook portion 13 are respectively formed with an auxiliary hook portion 17 bent in the same direction as the hook portion 13 , and the connecting portion 14 is formed by opening an opening on one side of the rod member 10 to make the two rod members After the connecting portions 14 having the openings are respectively relatively fastened, the two rod members 10 can pivot relative to each other with the connecting portion 14 as an axis.
The first embodiment of the present invention, which is composed of the above structure, is actually used, as shown in FIGS. 2 and 3, when both ends of a chain 20 are fastened by a quick-disconnectable link 21, If the link 21 is to be disassembled, it is only necessary to turn the actuating surface 131 on the hook portion 13 of the first end 11 of the two rods 10 to the opposite positions, and then the connecting portions 14 which are open-shaped respectively The cross-links are fastened together, and then the hook portions 13 of the two-bar member 10 are placed in the links 21 of the chain 20 to be respectively located outside the two rollers 22, and only the second member 10 is required. The two ends 12 are biased by abutting force, and the actuating surface 131 on the hook portion 13 of the first end 11 of the two rod members 10 is pivoted to urge the two rollers 22 toward each other. The direction is displaced to disassemble the link 21.
On the contrary, when the link 21 is to be fastened again, as shown in FIG. 4, the user only needs to turn the actuating surface 131 on the hook portion 13 of the first end 11 of the two members 10 to the opposite position. Then, the connecting portions 14 which are open in shape are mutually cross-linked, and then the hook portions 13 of the two rod members 10 are placed in the links 21 of the chain 20 to be positioned inside the two rollers 22, respectively. At this time, the user only needs to apply a relatively strong force to the second end 12 of the two rod members 10, and the actuating surface 131 on the hook portion 13 of the first end 11 of the two rod members 10 is pivoted. The abutment drives the two rollers 22 to be displaced in a relatively distant direction, so that the link 21 can be returned to the engaged state again.
From the above description, it is not difficult to find that the present invention only needs to be pivotally connected to each other by the plate-like members 10, thereby forming a chain tool for simultaneously disassembling and fastening the links, and the two can be used when not in use. The rod members 10 are stored in an overlapping manner, so that the chain tool of the present invention has the advantages of not occupying space and being convenient to carry, compared with the conventionally used pliers for disassembling the chain links, and the present invention is An auxiliary hook portion 17 is formed on each side of the hook portion 13 on the first end 11 of each rod member 10. The auxiliary hook portion 17 can protect the hook portion 13 from being easily broken, and the hook portion 13 is located at two The side auxiliary hooks 17 can be mutually formed into a spoon shape for use as a digging rod, and the second end 12 of the rod member 10 is provided with a notch 15 for the screw nut, so that the rod of the present invention 10 can also integrate a variety of functional uses such as chain tools, digging rods and wrenches, so that users can greatly reduce the number of tools they need to carry, thus reducing the load.
Next, please refer to FIG. 5, which is a second embodiment provided by the present invention, and the difference from the first embodiment is that the rod 10 is directly convex outward on the first end 11 thereof. The hook portion 13 is formed, and a spoon-shaped spoon portion 18 is formed at the extending end of the second end 12 of the rod member 10, and thereby the two rod members 10 are pivotally connected to each other by the joint portion 14 thereof. Thereafter, the hook portion 13 of the first end 11 can also be used to disassemble the chain links, and the scooping portion 18 formed by the second end 12 of each rod member 10 can be used as a digging rod individually.
Further, as shown in FIG. 6, it is a third embodiment provided by the present invention, and the difference from the first embodiment is that the lever member 10 is attached to one side of the second end 12 thereof. A notch 15 is formed in the notch 15 and a hook portion 152 is protruded therein, so that the second end 12 of the rod 10 can be used as a bottle opener.
Next, please refer to FIGS. 7 and 8 for the fourth embodiment provided by the present invention. The difference from the first embodiment is that the structure of the connecting portion is different. In the fourth embodiment, one of the rods is The connecting portion of the member 10 is formed by a protrusion 141 which is perpendicularly intersected with the extending direction of the rod member 10, and two oppositely disposed fins 142 are formed on the extended end of the protruding post 141. The connecting portion of the other member 10 is formed by a through hole 143 through which the protruding post 141 and the fin 142 are correspondingly disposed, and the protruding post 141 is rotated through the through hole 143 and rotated. After the angle, the two fins 142 on the protruding post 141 can be abutted against the outer peripheral surface of the other side of the through hole 143, thereby making the two rod members 10 relatively easy to assemble and disassemble. They are pivoted together and can be pivoted relative to each other.
Further, as shown in FIG. 9, the fifth embodiment of the present invention is the same as the above-described first embodiment, and the structure of the connecting portion is different. In the fifth embodiment, each of the rods is different. The connecting portion of the member 10 is respectively formed by a protrusion 144 and a groove 145 disposed opposite to the protrusion 144, and the shape of the protrusion 144 and the groove 145 correspond to each other, and thereby A rod member 10 is relatively pivoted by its projection 144 and the recess 145 of the other rod member 10.
The disclosure of the above embodiments is only intended to illustrate the invention, and is not intended to limit the invention, and the replacement of equivalent elements is still within the scope of the invention.
In summary, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objectives and is in compliance with the provisions of the Patent Law.