TWM485600U - Dual torsion hinge connector transmission mechanism - Google Patents
Dual torsion hinge connector transmission mechanism Download PDFInfo
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- TWM485600U TWM485600U TW103208363U TW103208363U TWM485600U TW M485600 U TWM485600 U TW M485600U TW 103208363 U TW103208363 U TW 103208363U TW 103208363 U TW103208363 U TW 103208363U TW M485600 U TWM485600 U TW M485600U
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Description
本創作有關一種雙軸同動扭力樞軸器傳動機構，可透過精簡的傳動機構形成雙軸同步轉動，使此類雙軸扭力樞軸器開閉轉動過程更為快速流暢，更有利於裝設在狹小的內部空間中而有利於設備的薄型化。The present invention relates to a biaxial co-rotating torque pivot transmission mechanism, which can form a two-axis synchronous rotation through a simplified transmission mechanism, so that the rotation and rotation process of such a biaxial torque pivoting device is more rapid and smooth, and is more favorable for installation in It is conducive to the thinning of equipment in a small internal space.
目前如筆記型電腦之類行動電子設備的顯示螢幕上蓋與主機系統端可透過雙軸樞軸器的設置，使筆記型電腦之類電子設備的上蓋顯示螢幕除了可定位在各種不同角度進行操作之外，更能使顯示端及系統端能以如360°的大角度彎折互疊成平板狀，提供變形的使用型態。At present, the display screen of the mobile electronic device such as a notebook computer and the host system end can be arranged through the two-axis pivot device, so that the upper cover display screen of the electronic device such as a notebook computer can be operated at various angles. In addition, the display end and the system end can be bent at a large angle such as 360° to form a flat plate, providing a deformed use form.
此類雙軸樞軸器的習用結構主要是以一第一轉軸與上蓋顯示螢幕一同轉動，並以一第二轉軸與主機系統端一同轉動。但習用雙軸式樞軸器在打開較大角度，或要使顯示端及系統端翻折360°的互疊狀態時，通常先使其中一軸旋轉到特定角度後，再切換至另一軸旋轉，除了整個顯示端及系統端的同步翻折機構相當複雜，製造及組裝上亦較費事，整體製造成本亦較高。The conventional structure of such a biaxial pivot mainly rotates together with the upper cover display screen by a first rotating shaft, and rotates together with the main system end by a second rotating shaft. However, when the conventional two-axis pivoting device is opened at a large angle, or the display end and the system end are folded into an overlapping state of 360°, usually one of the axes is first rotated to a specific angle, and then the other axis is rotated. In addition to the complexity of the synchronous folding mechanism of the entire display terminal and the system end, manufacturing and assembly are also more troublesome, and the overall manufacturing cost is also high.
同時，在此類雙軸轉動樞軸器要進行雙軸之間的旋轉動作轉換，牽涉到必須在雙軸之間裝設複雜的轉動變換機構，由於雙軸轉動控制器構件較多，而且要安裝在窄小的有限空間中，使用複雜的轉動變換機構將不利於整個電子設備的薄型化。At the same time, in such a two-axis rotary pivot, the rotation of the rotary motion between the two shafts is involved, which involves the necessity of installing a complicated rotary conversion mechanism between the two shafts. Mounting in a narrow and limited space, the use of a complex rotary transformation mechanism will be detrimental to the thinning of the entire electronic device.
本創作主要目的在提供一種雙軸同動扭力樞軸器傳動機構，透過精簡的齒輪及齒條在此類扭力樞軸器形成雙軸同步轉動機構，使雙軸扭力樞軸器打開或關閉轉動過程更為快速流暢，更有利於裝設在狹小的內部空間中而有利於此類電子設備的薄型化。The main purpose of this creation is to provide a two-axis co-rotating pivoting mechanism that forms a two-axis synchronous rotating mechanism through such a simplified gear and rack to open or close the two-axis torsion pivot. The process is faster and smoother, and is more conducive to installation in a small internal space to facilitate the thinning of such electronic equipment.
為達到以上目的，本創作包含：一第一樞軸以及一相對的第二樞軸，所述的第一樞軸及第二樞軸分別於一端組接固定片，供分別組合固定於一電子設備的上蓋顯示端及主機系統端；所述第一樞軸及第二樞軸另端依序套接扭力樞軸器構件，併活動套合兩相對分隔設定距離的一第一定位隔板及一第二定位隔板，所述第一定位隔板以及第二定位隔板至少以一組以上的相對支軸定位，並設有相對的導引槽道；所述第一定位隔板以及第二定位隔板之間設有兩相對設置的一第一傳動齒輪以及一第二傳動齒輪，所述第一傳動齒輪及第二傳動齒輪分別與所述第一樞軸及第二樞軸組合連動；所述第一傳動齒輪及第二傳動齒輪之間設有一齒條，所述齒條設有上下端齒狀部，使所述齒條上下端齒狀部表面分別與所述第一傳動齒輪及第二傳動齒輪嚙接連動，所述齒條並於兩端分別設有滑動件，使所述滑動件常態以較短長度活動組接於所述第一定位隔板以及第二定位隔板導引槽道中，並可因受力而往復位移於所述導引槽道；依上述第一樞軸連動第一傳動齒輪轉動，所述第一傳動齒輪將同步帶轉所述齒條，使所述齒條於所述導引槽道產生水平位移，齒條下端面因而連動所述第二傳動齒輪，使第二傳動齒輪轉動並連動所述的第二樞軸進行 與所述第一樞軸相反方向開啟或閉合動作，使整個扭力樞軸器形成雙軸同步連動功能。In order to achieve the above object, the present invention comprises: a first pivot and an opposite second pivot, wherein the first pivot and the second pivot respectively form a fixing piece at one end for respectively being combined and fixed to an electronic The upper cover display end of the device and the host system end; the first pivot shaft and the second pivot shaft are sequentially sleeved with the torsion pivot member, and the movable positioning sleeve is disposed with a first positioning partition plate that is opposite to the set distance a second positioning partition, the first positioning partition and the second positioning partition are positioned by at least one set of opposite fulcrums, and are provided with opposite guiding channels; the first positioning partition and the first Between the two positioning partitions, a first transmission gear and a second transmission gear are disposed, and the first transmission gear and the second transmission gear are respectively coupled with the first pivot shaft and the second pivot shaft. a rack is disposed between the first transmission gear and the second transmission gear, and the rack is provided with upper and lower end teeth, so that the upper and lower end tooth surfaces of the rack and the first transmission gear are respectively And the second transmission gear is meshed and interlocked, and the rack is combined Sliding members are respectively disposed, so that the sliding member is normally connected to the first positioning partition plate and the second positioning partition guiding channel in a short length, and can be reciprocally displaced by the force due to the force. Leading the groove; rotating the first transmission gear according to the first pivot, the first transmission gear rotates the synchronous belt to the rack, so that the rack generates a horizontal displacement in the guiding channel, the rack The lower end surface thus interlocks the second transmission gear, rotates the second transmission gear and interlocks the second pivot The opening or closing action in the opposite direction to the first pivot causes the entire torsion pivot to form a two-axis synchronous linkage function.
於可行實施例中，所述第一傳動齒輪40、第二傳動齒輪50及齒條60可選擇採用正齒輪嚙接結構、斜齒輪嚙接結構或人字齒輪嚙接結構之類齒輪傳動機構。In a possible embodiment, the first transmission gear 40, the second transmission gear 50, and the rack 60 may alternatively adopt a gear transmission mechanism such as a spur gear meshing structure, a helical gear meshing structure, or a herringbone gear meshing structure.
於一可行實施例中，所述第二定位隔板外端面進一步設有一十字板，所述十字板一外側與所述扭力樞軸器構件之間形成至少一扭力樞軸器的轉動角度定位裝置。In a possible embodiment, the outer end surface of the second positioning partition is further provided with a cross plate, and a rotation angle positioning device for forming at least one torsion pivot between the outer side of the cross plate and the torsion pivot member .
於可行實施例中，所述十字板於一外側預設至少一凹凸輪表面，所述扭力樞軸器構件設有相對個體凹凸輪，所述十字板一凹凸輪表面靠接於所述相對個體凹凸輪供形成扭力樞軸器的轉動角度定位裝置。In a possible embodiment, the cross plate defines at least one concave cam surface on an outer side, and the torsion pivot member is provided with an opposite individual concave cam, the cross plate and a concave cam surface abutting against the relative individual The concave cam is for forming a rotational angle positioning device of the torsion pivot.
其中，所述第一定位隔板及第二定位隔板以及扭力樞軸器構件的外周進一步設有至少一遮蔽護套，所述護套組合於所述十字板。Wherein, the outer periphery of the first positioning partition and the second positioning partition and the torsion pivot member are further provided with at least one shielding sheath, and the sheath is combined with the cross plate.
10‧‧‧第一樞軸10‧‧‧First pivot
11、21‧‧‧固定片11, 21‧‧‧ fixed piece
12‧‧‧十字板12‧‧‧ cross board
13‧‧‧第一定位隔板13‧‧‧First positioning partition
14‧‧‧第二定位隔板14‧‧‧Second positioning partition
20‧‧‧第二樞軸20‧‧‧Second pivot
30‧‧‧扭力樞軸器構件30‧‧‧Torque pivot member
31、32‧‧‧凹凸輪31, 32‧‧‧ concave cam
121、122‧‧‧通孔121, 122‧‧‧through holes
123、124‧‧‧定位孔123, 124‧‧‧ positioning holes
125、126‧‧‧凹凸輪表面125, 126‧‧‧ concave cam surface
131、141‧‧‧第一通孔131, 141‧‧‧ first through hole
132、142‧‧‧第二通孔132, 142‧‧‧ second through hole
133、143‧‧‧導引槽道133, 143‧‧‧ guide channel
134、135、144、145‧‧‧支軸孔134, 135, 144, 145‧‧ ‧ shaft holes
136、146‧‧‧定位支軸136, 146‧‧‧ positioning fulcrum
40、400‧‧‧第一傳動齒輪40,400‧‧‧First transmission gear
50、500‧‧‧第二傳動齒輪50, 500‧‧‧ second transmission gear
41、51‧‧‧中心孔41, 51‧‧‧ center hole
60、600‧‧‧齒條60, 600‧‧‧ racks
61、62‧‧‧滑動件61, 62‧‧‧Sliding parts
70‧‧‧護套70‧‧‧ sheath
71‧‧‧螺栓71‧‧‧Bolts
第1圖顯示本創作一較佳實施例立體圖。Figure 1 shows a perspective view of a preferred embodiment of the present invention.
第2圖顯示第1圖的元件分解圖。Fig. 2 is an exploded view of the element of Fig. 1.
第3圖顯示第1圖的局部構件斷面剖視圖。Fig. 3 is a cross-sectional view showing a partial member of Fig. 1.
第4圖顯示本創作傳動構件組合狀態放大示意圖。Fig. 4 is a schematic enlarged view showing the state of the combined transmission member of the present invention.
第5圖顯示本創作雙軸同動狀態的動作示意圖。Figure 5 shows the action diagram of the biaxial motion state of the creation.
第6圖顯示本創作另一種可行實施方式局部構件分解圖。Figure 6 shows an exploded view of a partial component of another possible implementation of the present invention.
第7圖顯示第6圖組合狀態立體剖視圖。Fig. 7 is a perspective sectional view showing the combined state of Fig. 6.
第8圖顯示本創作又一種可行實施例局部構件組合剖視圖。Figure 8 is a cross-sectional view showing a partial component combination of another possible embodiment of the present invention.
如第1至3圖所示，於圖示可行實施例中，本創作設有一第一樞軸10以及一相對的第二樞軸20，所述的第一樞軸10及第二樞軸20分別於一端組接固定片11、21，供分別組合固定於筆記型電腦之類電子設備的上蓋顯示端及主機系統端；所述第一樞軸10及第二樞軸20另端則可依序套接相對用已形成轉動定位裝置的凹輪或凸輪、彈性裝置以及固定裝置等扭力樞軸器構件30以共同形成一雙軸同動扭力樞軸器。As shown in Figures 1 to 3, in the illustrated embodiment, the present invention is provided with a first pivot 10 and an opposite second pivot 20, the first pivot 10 and the second pivot 20 The fixing pieces 11 and 21 are respectively assembled at one end for respectively being combined and fixed on the upper cover display end and the host system end of the electronic device such as a notebook computer; the other ends of the first pivot shaft 10 and the second pivot shaft 20 are respectively The sleeve is coupled to a torsion pivot member 30 such as a cam or cam, a resilient device, and a fixture that has formed a rotational positioning device to collectively form a dual-axis co-rotation pivot.
所述的第一樞軸10及第二樞軸20於所述扭力樞軸器構件30另端分別套設兩相對分隔設定距離的一第一定位隔板13以及一第二定位隔板14，於此一實施例中，所述第二定位隔板14外端面進一步設有一十字板12。所述第一定位隔板13及第二定位隔板14分別設有上下相對的第一通孔131、141及第二通孔132、142供分別穿過第一樞軸10及第二樞軸20；同時，在所述第一定位隔板13及第二定位隔板14上下相對第一通孔131、141及第二通孔132、142之間分別設有設定水平向長度的相對導引槽道133、143，以及設於所述第一定位隔板13及第二定位隔板14的上下相對支軸孔134、135、144、145。The first pivoting member 13 and the second pivoting member 20 are respectively disposed on the other end of the torsion pivot member 30 with a first positioning partition 13 and a second positioning partition 14 respectively spaced apart by a set distance. In this embodiment, the outer end surface of the second positioning partition 14 is further provided with a cross plate 12. The first positioning partition 13 and the second positioning partition 14 are respectively provided with upper and lower first through holes 131 and 141 and second through holes 132 and 142 for respectively passing through the first pivot 10 and the second pivot. 20; at the same time, the first positioning partition 13 and the second positioning partition 14 are respectively provided with relative guiding of the horizontal direction between the first through holes 131, 141 and the second through holes 132, 142 The channels 133 and 143 and the upper and lower opposing shaft holes 134, 135, 144 and 145 provided in the first positioning partition 13 and the second positioning partition 14 are provided.
於此一實施例中，第一樞軸10穿過相對的第一通孔131、141，第二樞軸20穿過相對的第二通孔132、142，同時，第一樞軸10及第二樞軸20設為含有削平面的斷面形狀，第一通孔131、141及第二通孔132、142則為圓形孔，使第一樞軸10及第二樞軸20轉動時，第一定位隔板13及第二定位隔板14不會隨著第一樞軸10及第二樞軸20旋轉。同時，在第一定位隔板13及第二定位隔板14的上下相對支軸孔134、135、144、145可分別組裝 定位支軸136、146。In this embodiment, the first pivot 10 passes through the opposite first through holes 131, 141, and the second pivot 20 passes through the opposite second through holes 132, 142. At the same time, the first pivot 10 and the first The two pivots 20 are formed in a cross-sectional shape including a cut plane, and the first through holes 131 and 141 and the second through holes 132 and 142 are circular holes, and when the first pivot 10 and the second pivot 20 are rotated, The first positioning partition 13 and the second positioning partition 14 do not rotate with the first pivot 10 and the second pivot 20. At the same time, the upper and lower opposite shaft holes 134, 135, 144, 145 of the first positioning partition 13 and the second positioning partition 14 can be assembled separately. The fulcrums 136, 146 are positioned.
於所述第一定位隔板13以及第二定位隔板14之間設有兩相 對並分開設定垂直距離的一第一傳動齒輪40以及一第二傳動齒輪50，使所述第一傳動齒輪40及第二傳動齒輪50分別與所述第一樞軸10及第二樞軸20組合連動；於此一實施例中，所述第一傳動齒輪40及第二傳動齒輪50分別設有與所述第一樞軸10及第二樞軸20同狀斷面的中心孔41、51，供彼此組接連動；同時，於所述第一傳動齒輪40及第二傳動齒輪50之間則設有一齒條60，所述齒條60設有上下端齒狀部，使所述齒條60上下端齒狀部表面分別與所述第一傳動齒輪40及第二傳動齒輪50嚙接連動，所述齒條60並於兩端分別設有水平長度小於所述第一定位隔板13及第二定位隔板14相對導引槽道133、143水平長度的滑動件61、62，使所述滑動件61、62常態以較短長度組接於所述導引槽道133、143(如第3及4圖所示)中，並可因受力而左右往復位移於所述導引槽道133、143。Two phases are disposed between the first positioning partition 13 and the second positioning partition 14 a first transmission gear 40 and a second transmission gear 50 that are vertically spaced apart from each other, and the first transmission gear 40 and the second transmission gear 50 are respectively coupled to the first pivot 10 and the second pivot 20 In the embodiment, the first transmission gear 40 and the second transmission gear 50 are respectively provided with central holes 41, 51 of the same shape as the first pivot shaft 10 and the second pivot shaft 20; Between the first transmission gear 40 and the second transmission gear 50, a rack 60 is disposed between the first transmission gear 40 and the second transmission gear 50, and the rack 60 is provided with upper and lower end teeth for the rack The upper and lower end tooth surfaces of the 60 are respectively meshed with the first transmission gear 40 and the second transmission gear 50, and the rack 60 is respectively disposed at two ends with a horizontal length smaller than the first positioning partition 13 and The second positioning partition 14 is opposite to the guiding members 133, 143 of the horizontal length of the sliding members 61, 62, so that the sliding members 61, 62 are normally assembled to the guiding grooves 133, 143 with a shorter length (such as In the third and fourth drawings, the guide grooves 133 and 143 are reciprocally displaced to the left and right by the force.
所述十字板12於上下端分別設有通孔121、122供分別穿過所 述第一樞軸10及第二樞軸20以串接扭力樞軸器構件30，同時可於兩側預設定位孔123、124；於此一實施例中，所述十字板12可於一外側預設凹凸輪表面125、126，供靠接於所述扭力樞軸器構件30的相對個體凹凸輪31、32，形成扭力樞軸器的轉動角度定位裝置。The cross plate 12 is respectively provided with through holes 121 and 122 at the upper and lower ends for respectively passing through the The first pivot 10 and the second pivot 20 are connected in series with the torsion pivot member 30, and the positioning holes 123, 124 can be preset on both sides. In this embodiment, the cross plate 12 can be The outer predetermined concave cam surfaces 125, 126 are for abutting against the respective individual concave cams 31, 32 of the torsion pivot member 30 to form a rotational angle positioning device for the torsion pivot.
如第5圖所示，本創作依上述結構在筆記型電腦之類電子設 備的上蓋顯示端或主機系統端掀開轉動時，所述的第一樞軸10或第二樞軸20將因連動結構而旋轉，以所述第一樞軸10連動第一傳動齒輪40沿箭頭A方向轉動為例，所述第一傳動齒輪40將同步帶轉所述齒條60，使所述齒條60 沿箭頭B方向於相對導引槽道133、143之間產生水平位移，齒條60下端因而連動所述第二傳動齒輪50，使第二傳動齒輪50沿著與箭頭A方向反向的箭頭C方向轉動並連動所述的第二樞軸20進行與所述第一樞軸10相反方向開啟或閉合動作，使整個扭力樞軸器形成雙軸同步連動功能。As shown in Figure 5, this creation is based on the above structure in an electronic device such as a notebook computer. When the upper cover display end or the main system end is rotated, the first pivot 10 or the second pivot 20 will rotate due to the interlocking structure, and the first pivot 10 is linked along the first transmission gear 40. Taking the direction of the arrow A as an example, the first transmission gear 40 rotates the timing belt to the rack 60 to make the rack 60 A horizontal displacement is generated between the opposite guiding grooves 133, 143 in the direction of the arrow B, and the lower end of the rack 60 thus interlocks the second transmission gear 50 such that the second transmission gear 50 is along the arrow C opposite to the direction of the arrow A. The second pivot 20 is rotated in the direction and interlocked to open or close in a direction opposite to the first pivot 10, so that the entire torque pivoting mechanism forms a two-axis synchronous interlocking function.
於第6及7圖所示的本創作另一可行實施例中，可進一步設置 一遮蔽用的護套70，所述護套70可設為空心狀並使端面設為配合所述第二定位隔板14形狀，而可套合於所述第一定位隔板及第二定位隔板以及扭力樞軸器構件30外周，並以螺栓71之類固定元件將所述護套70鎖定於所述十字板12的兩側預設定位孔123、124(圖示僅顯示其中一定位孔123)。In another possible embodiment of the present invention shown in Figures 6 and 7, it can be further set a shielding sheath 70, wherein the sheath 70 can be hollow and the end surface is shaped to fit the second positioning partition 14 to fit the first positioning partition and the second positioning The partition and the outer periphery of the torsion pivot member 30, and the fixing member 30 such as a bolt 71 locks the sheath 70 to the two sides of the cross plate 12 at predetermined positioning holes 123, 124 (only one of the positioning is shown in the figure Hole 123).
上揭各有關實施例(第1至7圖)於所述第一傳動齒輪40、第 二傳動齒輪50及齒條60雖然採用正齒輪嚙接結構，但此並非加以限制；如第8圖所示，所述第一傳動齒輪400、第二傳動齒輪500及齒條600亦可採用斜齒輪嚙接結構；當然亦可採用如人字齒輪嚙接結構。Each of the related embodiments (Figs. 1 to 7) is disclosed in the first transmission gear 40, Although the second transmission gear 50 and the rack 60 adopt a spur gear meshing structure, this is not limited; as shown in FIG. 8, the first transmission gear 400, the second transmission gear 500, and the rack 600 may also be inclined. Gear meshing structure; of course, it can also be used as a herringbone gear meshing structure.
本創作因而能以精簡的齒輪組在扭力樞軸器形成雙軸同步 轉動機構，使此類筆記型電腦之類電子設備在打開或關閉轉動過程更為快速流暢，亦可免除雙軸必須交換的相關變換機構，更有利於裝設在狹小的內部空間中而有利於電子設備的進一步薄型化。This creation thus enables a two-axis synchronization of the torsion pivot with a streamlined gear set The rotating mechanism makes the electronic equipment such as the notebook computer turn on or off more quickly and smoothly, and can also eliminate the related conversion mechanism that the two shafts have to be exchanged, and is more conducive to being installed in a small internal space, which is beneficial to the rotation mechanism. Further thinning of electronic equipment.
以上實施例僅用為方便舉例說明本創作，並非加以限制，對於熟習此一技藝人士依該實施例所可作的各種簡易變形與修飾，均仍應含括於以下申請專利範圍中。The above embodiments are only used to exemplify the present invention, and are not intended to be limiting, and various modifications and modifications may be made to the skilled person in the following claims.
10‧‧‧第一樞軸10‧‧‧First pivot
11、21‧‧‧固定片11, 21‧‧‧ fixed piece
12‧‧‧十字板12‧‧‧ cross board
13‧‧‧第一定位隔板13‧‧‧First positioning partition
14‧‧‧第二定位隔板14‧‧‧Second positioning partition
20‧‧‧第二樞軸20‧‧‧Second pivot
30‧‧‧扭力樞軸器構件30‧‧‧Torque pivot member
31、32‧‧‧凹凸輪31, 32‧‧‧ concave cam
123‧‧‧定位孔123‧‧‧Positioning holes
125、126‧‧‧凹凸輪125, 126‧‧‧ concave cam
133‧‧‧導引槽道133‧‧‧ Guide channel
40‧‧‧第一傳動齒輪40‧‧‧First transmission gear
50‧‧‧第二傳動齒輪50‧‧‧second transmission gear
60‧‧‧齒條60‧‧‧ rack
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103208363U TWM485600U (en) | 2014-05-14 | 2014-05-14 | Dual torsion hinge connector transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103208363U TWM485600U (en) | 2014-05-14 | 2014-05-14 | Dual torsion hinge connector transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM485600U true TWM485600U (en) | 2014-09-01 |
Family
ID=51944321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103208363U TWM485600U (en) | 2014-05-14 | 2014-05-14 | Dual torsion hinge connector transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM485600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI626002B (en) * | 2016-08-16 | 2018-06-01 | Axial displacement pivot |
-
2014
- 2014-05-14 TW TW103208363U patent/TWM485600U/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI626002B (en) * | 2016-08-16 | 2018-06-01 | Axial displacement pivot |
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