WO2017190386A1 - Caster having manual friction brake device - Google Patents

Caster having manual friction brake device Download PDF

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Publication number
WO2017190386A1
WO2017190386A1 PCT/CN2016/083128 CN2016083128W WO2017190386A1 WO 2017190386 A1 WO2017190386 A1 WO 2017190386A1 CN 2016083128 W CN2016083128 W CN 2016083128W WO 2017190386 A1 WO2017190386 A1 WO 2017190386A1
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WO
WIPO (PCT)
Prior art keywords
shaft body
wheel
caster
manual
positioning block
Prior art date
Application number
PCT/CN2016/083128
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French (fr)
Chinese (zh)
Inventor
何塞安东尼奥
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中山市诺贝五金制品有限公司
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Application filed by 中山市诺贝五金制品有限公司 filed Critical 中山市诺贝五金制品有限公司
Publication of WO2017190386A1 publication Critical patent/WO2017190386A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors

Definitions

  • the utility model relates to a caster, in particular to a caster with a rotating seat or a trolley.
  • a caster includes a wheel frame, a left wheel body, a right wheel body and a shaft body.
  • the wheel frame has a shaft hole and a connecting seat, the shaft body and the shaft hole are fixed, and the left and right wheel bodies and the shaft body are respectively The end is pivotally connected.
  • the purpose of the utility model is to provide a caster with a manual friction braking device, which has the function of braking brake without load bearing, and is convenient to operate.
  • a caster provided with a manual friction braking device, comprising a wheel frame, a left wheel body, a right wheel body and a shaft body, the wheel frame has a shaft hole, a connecting seat and a circle on both sides of the wheel frame
  • the curved friction plate, the left and right wheel bodies comprise a bearing and a rim, wherein: the shaft hole on the wheel frame comprises an upper circular arc portion, a middle square portion and a lower circular arc portion; The diameter line is perpendicular to the top of the horizontal plane and has a lower opening receiving cavity; the bottom of the lower circular arc portion has a guiding stop groove; the fixed portion of the shaft body and the wheel frame includes an upper circular shaft body portion and a middle square shaft a body portion and a lower arc shaft body portion, the diameter line of the upper arc shaft body portion has a counterbore perpendicular to the top of the horizontal plane;
  • the lower end of the pressure spring is embedded in the counterbore, the upper end is located in the accommodating cavity, the sliding positioning block is slidably engaged with the guiding stop groove, and cooperates with the lower arc shaft body of the shaft body; the rim cooperates with the circular arc friction plate.
  • the caster provided with the manual friction brake device is special in that: the bottom of the guide stop groove has a guide stop hole passing through the wheel frame;
  • the sliding positioning block includes a support portion, a seat plate portion and a manual guide stop plate.
  • the support portion is engaged with the lower arc shaft body portion of the shaft body, the seat plate portion is slidably engaged with the guide stop groove, and the manual guide stop plate is slidably engaged with the guide stop hole and stopped.
  • the caster provided with the manual friction brake device is special in that the support portion has a guide surface at an end opposite to the shaft body.
  • the utility model relates to a caster provided with a manual friction braking device. Since such a structure is adopted, only the sliding positioning block can be operated, and the braking function and the non-functional function can be converted, and the structure is simple and the operation is convenient.
  • Figure 1 is one of the cross-sectional views of the present invention.
  • Figure 2 is a second cross-sectional view of the present invention.
  • Figure 3 is an exploded perspective view of the present invention.
  • Figure 4 is a perspective cross-sectional view of the present invention.
  • a caster provided with a manual friction brake device includes a wheel frame 1, a left wheel body 21, a right wheel body 22 and a shaft body 3.
  • the wheel frame 1 has a shaft hole 4, a connecting seat 5 and a wheel.
  • An arc-shaped friction plate 9 on both sides of the frame, the left and right wheel bodies 21, 22 include a bearing 23 and a rim 24, the shaft body 3 is hollow, and the two ends of the shaft body 3 and the bearings 23 of the left and right wheel bodies 21, 22, respectively Cooperate and rotate with the rim;
  • the shaft body 3 has guide groove grooves at both ends thereof, and the center hole of the rim 24 has a guide rail 241, and the guide rail 241 and the guide card are fitted.
  • the shaft hole 4 on the wheel carrier 1 includes an upper circular arc portion 41, a middle square portion 42 and a lower circular arc portion 43; the diameter line of the upper circular arc portion is perpendicular to the top of the horizontal plane and has a lower opening receiving cavity 411; the bottom of the lower arc portion 43 has a guide stop groove 6;
  • the fixing portion of the shaft body 3 and the wheel carrier 1 includes an upper circular shaft body portion 31, a middle square shaft portion 32 and a lower circular shaft portion 33, and the diameter line of the upper circular shaft portion 31 is perpendicular to the horizontal plane. a counterbore 311 at the top;
  • the upper circular arc shaft portion 31 and the lower circular arc shaft portion 33 are respectively engaged with the upper circular arc portion 41 and the lower circular arc portion 43, and the middle square shaft portion 32 and the middle square portion 42 are slidably fitted to prevent the shaft from rotating.
  • a pressure spring 7 and a sliding positioning block 8 are also included.
  • the lower end of the pressure spring 7 is embedded in the counterbore 311, and the upper end is located in the accommodating cavity 411.
  • the sliding positioning block 8 is slidably engaged with the guide stop groove 6 and cooperates with the lower arc shaft body portion 33 of the shaft body 3.
  • the rim 24 is engaged with the circular arc-shaped friction plate 9.
  • the bottom of the guide stop groove 6 has a guide stop hole 61 passing through the wheel carrier 1;
  • the sliding positioning block 8 includes a supporting portion 81, a seat plate portion 82 and a manual guiding stop plate 83.
  • the support portion 81 is engaged with the lower arc shaft portion 33 of the shaft body 3, the seat plate portion 82 is slidably engaged with the guide stop groove 6, and the manual guide stop plate 83 is slidably engaged with the guide stop hole 61 and stopped. .
  • the support portion 81 of the slide positioning block 8 supports the lower circular arc shaft portion 33 of the shaft body 3.
  • the upper circular arc shaft body portion 31 is fitted to the upper circular arc portion 41 of the shaft hole 4,
  • the central square shaft portion 32 is engaged with the central square portion 42 of the shaft hole, and the compression spring 7 is in a compressed state; the circular arc-shaped friction plate 9 is separated from the rim 24.
  • the slide positioning block 8 is moved to the left, the seat plate portion 82 and the guide stop groove 6 are slid and matched with the stop position, and the middle square shaft portion 32 is moved downward relative to the middle square portion 42, the support portion 81 Separated from the shaft body 3; the pressure spring 7
  • the middle square shaft portion 32 is vertically slidably engaged with the middle square portion 42 of the shaft hole; the caster of the present technical solution has a braking function when not in use, that is, the circular arc friction plate 9 Fits with the rim 24.
  • One end of the support portion 81 opposite to the shaft body 3 has a guide surface 811.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Braking Arrangements (AREA)

Abstract

A caster having a manual friction brake device comprises a wheel carrier (1), a left wheel body (21), a right wheel body (22), and an axle body (3). The wheel carrier (1) is provided with an axle hole (4), a connecting base (5), and arc-shaped friction plates (9) placed on two sides of the wheel carrier (1); the left and the right wheel bodies (21, 22) comprise a bearing (23) and a rim (24); the axle hole (4) in the wheel carrier (1) comprises an upper arced part (41), a middle squared part (42) and a lower arced part (43); an accommodating cavity (411) having a downward-facing opening is provided at the top of the upper arced part (41), where the diameter line is perpendicular to the horizontal plane; a guide limiting groove (6) is formed at the bottom of the lower arced part (43). The caster having a manual friction brake device further comprises a pressure spring (7) and a sliding positioning block (8). The lower end of the pressure spring (7) is embedded in a counter bore (311) and the upper end is positioned in the accommodating cavity (411); the sliding positioning block (8) has a sliding fit with the guide limiting groove (6) and is matched with a lower arced axle-body part (33) of the axle body (3); and the rim (24) is matched with the arced-shaped friction plates (9). With use of such a structure, switching between a braking function and a non-braking function can be realized simply by operating the sliding positioning block, and the caster is simple in structure and convenient to operate.

Description

一种设置手动摩擦制动装置的脚轮Caster for setting manual friction brake device 技术领域Technical field
本实用新型涉及一种脚轮，尤其是一种用转动座椅或手推车有脚轮。The utility model relates to a caster, in particular to a caster with a rotating seat or a trolley.
背景技术Background technique
目前现有技术，一种脚轮，包括轮架、左轮体、右轮体和轴体，轮架上有轴孔和连接座，轴体与轴孔固定，左、右轮体与轴体的两端枢接。存在问题是：不具有减震功能，轮体易损坏，使用寿命短。At present, a caster includes a wheel frame, a left wheel body, a right wheel body and a shaft body. The wheel frame has a shaft hole and a connecting seat, the shaft body and the shaft hole are fixed, and the left and right wheel bodies and the shaft body are respectively The end is pivotally connected. The problem is that it does not have a shock absorbing function, the wheel body is easily damaged, and the service life is short.
实用新型内容Utility model content
本实用新型的目的是：提供一种设置手动摩擦制动装置的脚轮，它具有不承重情况下的制动刹车功能，操作方便。The purpose of the utility model is to provide a caster with a manual friction braking device, which has the function of braking brake without load bearing, and is convenient to operate.
本实用新型是这样实现的：一种设置手动摩擦制动装置的脚轮，包括轮架、左轮体、右轮体和轴体，轮架上有轴孔、连接座和位于轮架两侧的圆弧形摩擦片，左、右轮体包括轴承和轮辋，其特征在于：所述轮架上的轴孔包括上圆弧部、中方形部和下圆弧形部；所述上圆弧部的直径线垂直于水平面的顶部有下开口的容置腔；下圆弧形部的底部有导位止位槽；所述轴体与轮架的固定部包括上圆弧轴体部、中方形轴体部和下圆弧轴体部，上圆弧轴体部的直径线垂直于水平面的顶部有沉孔；The utility model is realized as follows: a caster provided with a manual friction braking device, comprising a wheel frame, a left wheel body, a right wheel body and a shaft body, the wheel frame has a shaft hole, a connecting seat and a circle on both sides of the wheel frame The curved friction plate, the left and right wheel bodies comprise a bearing and a rim, wherein: the shaft hole on the wheel frame comprises an upper circular arc portion, a middle square portion and a lower circular arc portion; The diameter line is perpendicular to the top of the horizontal plane and has a lower opening receiving cavity; the bottom of the lower circular arc portion has a guiding stop groove; the fixed portion of the shaft body and the wheel frame includes an upper circular shaft body portion and a middle square shaft a body portion and a lower arc shaft body portion, the diameter line of the upper arc shaft body portion has a counterbore perpendicular to the top of the horizontal plane;
还包括一压力弹簧和滑动定位块，Also includes a pressure spring and a sliding positioning block.
压力弹簧下端嵌入沉孔内、上端位于容置腔内，滑动定位块与导向止位槽滑动配合、并与轴体的下圆弧轴体部配合；轮辋与圆弧形摩擦片配合。The lower end of the pressure spring is embedded in the counterbore, the upper end is located in the accommodating cavity, the sliding positioning block is slidably engaged with the guiding stop groove, and cooperates with the lower arc shaft body of the shaft body; the rim cooperates with the circular arc friction plate.
所述的一种设置手动摩擦制动装置的脚轮，其特殊之处在于：所述导向止位槽的底部有穿过所述轮架的导向止位孔；The caster provided with the manual friction brake device is special in that: the bottom of the guide stop groove has a guide stop hole passing through the wheel frame;
所述滑动定位块包括支撑部、座板部和手动的导向止位板，The sliding positioning block includes a support portion, a seat plate portion and a manual guide stop plate.
支撑部与所述轴体的下圆弧轴体部配合，座板部与导向止位槽滑动配合，手动的导向止位板与导向止位孔滑动配合并止位。The support portion is engaged with the lower arc shaft body portion of the shaft body, the seat plate portion is slidably engaged with the guide stop groove, and the manual guide stop plate is slidably engaged with the guide stop hole and stopped.
所述的一种设置手动摩擦制动装置的脚轮，其特殊之处在于：所述支撑部与所述轴体相对的一端有导向面。The caster provided with the manual friction brake device is special in that the support portion has a guide surface at an end opposite to the shaft body.
本实用新型一种设置手动摩擦制动装置的脚轮，由于采用这样的结构，只需操作滑动定位块，便可以有制动功能和无制功能的转换，结构简单，操作方便。The utility model relates to a caster provided with a manual friction braking device. Since such a structure is adopted, only the sliding positioning block can be operated, and the braking function and the non-functional function can be converted, and the structure is simple and the operation is convenient.
附图说明 DRAWINGS
图1是本实用新型的剖视图之一。Figure 1 is one of the cross-sectional views of the present invention.
图2是本实用新型的剖视图之二。Figure 2 is a second cross-sectional view of the present invention.
图3是本实用新型的立体分解图。Figure 3 is an exploded perspective view of the present invention.
图4是本实用新型的立体剖视图。Figure 4 is a perspective cross-sectional view of the present invention.
具体实施方式detailed description
下面结合附图对本实用新型作进一步描述。The present invention will be further described below in conjunction with the accompanying drawings.
如图1所示，一种设置手动摩擦制动装置的脚轮，包括轮架1、左轮体21、右轮体22和轴体3，轮架1上有轴孔4、连接座5和位于轮架两侧的圆弧形摩擦片9，左、右轮体21、22包括轴承23和轮辋24，轴体3中空，轴体3的两端分别与左、右轮体21、22的轴承23配合并与轮辋转动配合；As shown in FIG. 1, a caster provided with a manual friction brake device includes a wheel frame 1, a left wheel body 21, a right wheel body 22 and a shaft body 3. The wheel frame 1 has a shaft hole 4, a connecting seat 5 and a wheel. An arc-shaped friction plate 9 on both sides of the frame, the left and right wheel bodies 21, 22 include a bearing 23 and a rim 24, the shaft body 3 is hollow, and the two ends of the shaft body 3 and the bearings 23 of the left and right wheel bodies 21, 22, respectively Cooperate and rotate with the rim;
轴体3的两端有导向卡槽，所述轮辋24的中心孔上有导轨241，导轨241和导向卡嵌合。The shaft body 3 has guide groove grooves at both ends thereof, and the center hole of the rim 24 has a guide rail 241, and the guide rail 241 and the guide card are fitted.
所述轮架1上的轴孔4包括上圆弧部41、中方形部42和下圆弧形部43；所述上圆弧部的直径线垂直于水平面的顶部有下开口的容置腔411；下圆弧形部43的底部有导位止位槽6；The shaft hole 4 on the wheel carrier 1 includes an upper circular arc portion 41, a middle square portion 42 and a lower circular arc portion 43; the diameter line of the upper circular arc portion is perpendicular to the top of the horizontal plane and has a lower opening receiving cavity 411; the bottom of the lower arc portion 43 has a guide stop groove 6;
所述轴体3与轮架1的固定部包括上圆弧轴体部31、中方形轴体部32和下圆弧轴体部33，上圆弧轴体部31的直径线垂直于水平面的顶部有沉孔311；The fixing portion of the shaft body 3 and the wheel carrier 1 includes an upper circular shaft body portion 31, a middle square shaft portion 32 and a lower circular shaft portion 33, and the diameter line of the upper circular shaft portion 31 is perpendicular to the horizontal plane. a counterbore 311 at the top;
上圆弧轴体部31和下圆弧轴体部33分别与上圆弧部41和下圆弧形部43配合，中方形轴体部32和中方形部42滑动配合并防止轴体转动，The upper circular arc shaft portion 31 and the lower circular arc shaft portion 33 are respectively engaged with the upper circular arc portion 41 and the lower circular arc portion 43, and the middle square shaft portion 32 and the middle square portion 42 are slidably fitted to prevent the shaft from rotating.
还包括一压力弹簧7和滑动定位块8，A pressure spring 7 and a sliding positioning block 8 are also included.
压力弹簧7下端嵌入沉孔311内、上端位于容置腔411内，滑动定位块8与导位止位槽6滑动配合、并与轴体3的下圆弧轴体部33配合。轮辋24与圆弧形摩擦片9配合。The lower end of the pressure spring 7 is embedded in the counterbore 311, and the upper end is located in the accommodating cavity 411. The sliding positioning block 8 is slidably engaged with the guide stop groove 6 and cooperates with the lower arc shaft body portion 33 of the shaft body 3. The rim 24 is engaged with the circular arc-shaped friction plate 9.
所述导向止位槽6的底部有穿过所述轮架1的导向止位孔61；The bottom of the guide stop groove 6 has a guide stop hole 61 passing through the wheel carrier 1;
所述滑动定位块8包括支撑部81、座板部82和手动的导向止位板83，The sliding positioning block 8 includes a supporting portion 81, a seat plate portion 82 and a manual guiding stop plate 83.
支撑部81与所述轴体3的下圆弧轴体部33配合，座板部82与导向止位槽6滑动配合，手动的导向止位板83与导向止位孔61滑动配合并止位。The support portion 81 is engaged with the lower arc shaft portion 33 of the shaft body 3, the seat plate portion 82 is slidably engaged with the guide stop groove 6, and the manual guide stop plate 83 is slidably engaged with the guide stop hole 61 and stopped. .
如图1所示，滑动定位块8的支撑部81支撑轴体3的下圆弧轴体部33，此时，上圆弧轴体部31与轴孔4的上圆弧部41嵌合，中方形轴体部32与轴孔的中方形部42配合，压力弹簧7处于压缩状态；圆弧形摩擦片9与轮辋24分离。As shown in FIG. 1, the support portion 81 of the slide positioning block 8 supports the lower circular arc shaft portion 33 of the shaft body 3. At this time, the upper circular arc shaft body portion 31 is fitted to the upper circular arc portion 41 of the shaft hole 4, The central square shaft portion 32 is engaged with the central square portion 42 of the shaft hole, and the compression spring 7 is in a compressed state; the circular arc-shaped friction plate 9 is separated from the rim 24.
在图1状态下，将滑动定位块8向左移动，座板部82与导位止位槽6滑动并配合止位，中方形轴体部32相对中方形部42向下移动，支撑部81与轴体3分离；压力弹簧7处 于可自由伸缩状态；中方形轴体部32与轴孔的中方形部42上下滑动配合；本技术方案的脚轮在使用时，不承重的情况下具有制动功能，即圆弧形摩擦片9与轮辋24贴合。In the state of FIG. 1, the slide positioning block 8 is moved to the left, the seat plate portion 82 and the guide stop groove 6 are slid and matched with the stop position, and the middle square shaft portion 32 is moved downward relative to the middle square portion 42, the support portion 81 Separated from the shaft body 3; the pressure spring 7 The middle square shaft portion 32 is vertically slidably engaged with the middle square portion 42 of the shaft hole; the caster of the present technical solution has a braking function when not in use, that is, the circular arc friction plate 9 Fits with the rim 24.
所述支撑部81与所述轴体3相对的一端有导向面811。One end of the support portion 81 opposite to the shaft body 3 has a guide surface 811.
以上所述的仅是本实用新型的优先实施方式。应当指出的是，对于本领域的普通技术人员来说，在不脱离本实用新型原理的情况下，还可以作出若干改进和变型，这也视为本实用新型的保护范围。 What has been described above is only a preferred embodiment of the present invention. It should be noted that a number of modifications and variations can be made by those skilled in the art without departing from the principles of the invention.

Claims (3)

  1. 一种设置手动摩擦制动装置的脚轮，包括轮架、左轮体、右轮体和轴体，轮架上有轴孔、连接座和位于轮架两侧的圆弧形摩擦片，左、右轮体包括轴承和轮辋，其特征在于：所述轮架上的轴孔包括上圆弧部、中方形部和下圆弧形部；所述上圆弧部的直径线垂直于水平面的顶部有下开口的容置腔；下圆弧形部的底部有导位止位槽；A caster for setting a manual friction braking device, comprising a wheel frame, a left wheel body, a right wheel body and a shaft body; the wheel frame has a shaft hole, a connecting seat and an arc-shaped friction plate on both sides of the wheel frame, left and right The wheel body comprises a bearing and a rim, wherein the shaft hole on the wheel frame comprises an upper circular arc portion, a middle square portion and a lower circular arc portion; the diameter line of the upper circular arc portion is perpendicular to the top of the horizontal plane. a receiving cavity of the lower opening; a guiding stop groove at the bottom of the lower circular arc portion;
    所述轴体与轮架的固定部包括上圆弧轴体部、中方形轴体部和下圆弧轴体部，上圆弧轴体部的直径线垂直于水平面的顶部有沉孔；The fixing portion of the shaft body and the wheel frame comprises an upper circular shaft body portion, a middle square shaft body portion and a lower circular shaft body portion, and the diameter line of the upper circular shaft body portion has a counterbore perpendicular to the top of the horizontal plane;
    还包括一压力弹簧和滑动定位块，Also includes a pressure spring and a sliding positioning block.
    压力弹簧下端嵌入沉孔内、上端位于容置腔内，滑动定位块与导向止位槽滑动配合、并与轴体的下圆弧轴体部配合；轮辋与圆弧形摩擦片配合。The lower end of the pressure spring is embedded in the counterbore, the upper end is located in the accommodating cavity, the sliding positioning block is slidably engaged with the guiding stop groove, and cooperates with the lower arc shaft body of the shaft body; the rim cooperates with the circular arc friction plate.
  2. 根据权利要求1所述的一种设置手动摩擦制动装置的脚轮，其特征在于：所述导向止位槽的底部有穿过所述轮架的导向止位孔；A caster provided with a manual friction brake device according to claim 1, wherein a bottom of the guide stop groove has a guide stop hole passing through the wheel carrier;
    所述滑动定位块包括支撑部、座板部和手动的导向止位板，The sliding positioning block includes a support portion, a seat plate portion and a manual guide stop plate.
    支撑部与所述轴体的下圆弧轴体部配合，座板部与导向止位槽滑动配合，手动的导向止位板与导向止位孔滑动配合并止位。The support portion is engaged with the lower arc shaft body portion of the shaft body, the seat plate portion is slidably engaged with the guide stop groove, and the manual guide stop plate is slidably engaged with the guide stop hole and stopped.
  3. 根据权利要求1所述的一种设置手动摩擦制动装置的脚轮，其特征在于：所述支撑部与所述轴体相对的一端有导向面。 A caster provided with a manual friction brake device according to claim 1, wherein a side of the support portion opposite to the shaft body has a guide surface.
PCT/CN2016/083128 2016-05-03 2016-05-24 Caster having manual friction brake device WO2017190386A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201620394990.6U CN205800653U (en) 2016-05-03 2016-05-03 A kind of castor that manual friction stopping device is set
CN201620394990.6 2016-05-03

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WO2017190386A1 true WO2017190386A1 (en) 2017-11-09

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WO (1) WO2017190386A1 (en)

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US10759221B1 (en) * 2019-05-08 2020-09-01 Po-Chuan Tsai Caster device

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Publication number Priority date Publication date Assignee Title
CN108422805B (en) * 2018-04-03 2020-05-08 无锡赛飞滑泰脚轮制造有限公司 Caster wheel

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