TW202110667A - Positioning caster wherein the positioning block passes through the positioning groove and is partially embedded in the recess so that the shaft tube is axially positioned in the shaft hole to improve the convenience of assembling the shaft tube with the base - Google Patents
Positioning caster wherein the positioning block passes through the positioning groove and is partially embedded in the recess so that the shaft tube is axially positioned in the shaft hole to improve the convenience of assembling the shaft tube with the base Download PDFInfo
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Abstract
Description
本發明是有關於一種腳輪,特別是指一種呈中空狀的定位腳輪。The present invention relates to a caster, especially a hollow positioning caster.
現有的定位腳輪,包含一個輪座,及一個樞接在該輪座的滾輪,由於該滾輪的軸心需要樞接在該輪座上,因此無法設計成具有中空狀的的腳輪。中國專利CN100441428C揭露了一種外觀呈中空狀的定位腳輪,包含一個具有中空的座本體、一穿過該座本體且具有兩個圓柱形部分的套筒,及兩個分別能轉動地設置於該套筒的該等圓柱形部分的輪子。為確保該套筒不會相對於該座本體左右位移以及旋轉,該套筒的外周面設置一環型的槽,及兩個切平面,而該座本體的內周面設置一能嵌卡於該槽的環型突脊,及兩個分別能對應貼靠前述切平面的平表面,藉由所述槽與所述環型突脊限制該套筒無法相對該座本體水平移動,並藉由該等切平面與該等平表面限制該套筒無法相對該座本體轉動。The existing positioning caster includes a wheel base and a roller pivotally connected to the wheel base. Since the axis of the roller needs to be pivotally connected to the wheel base, it cannot be designed as a hollow caster. Chinese patent CN100441428C discloses a positioning caster with a hollow appearance, comprising a hollow seat body, a sleeve passing through the seat body and having two cylindrical parts, and two rotatably arranged on the sleeve. The wheels of the cylindrical part of the barrel. In order to ensure that the sleeve does not move or rotate left and right relative to the seat body, the outer circumferential surface of the sleeve is provided with a ring-shaped groove and two tangent planes, and the inner circumferential surface of the seat body is provided with an insertable The ring-shaped ridge of the groove and two flat surfaces respectively corresponding to the aforementioned tangent plane. The groove and the ring-shaped ridge restrict the sleeve from being able to move horizontally relative to the seat body. The isometric plane and the flat surfaces restrict the sleeve from rotating relative to the seat body.
雖然前述定位腳輪可以呈現中空狀的外觀,但由於該套筒與該座本體是利用該槽與該環型突脊相互嵌卡,組裝上要迫使該環型突脊與該套筒略為彈性變形,使該套筒從其軸向穿過該座本體內,此種結構不但不利於組裝,且為了能將該套筒順利組裝於該座本體中,該套筒與該座本體的材質必須要具備適當的彈性,而大幅降低該定位腳輪的強度。Although the aforementioned positioning casters can have a hollow appearance, since the sleeve and the seat body are interlocked with each other by the groove and the ring-shaped ridge, the ring-shaped ridge and the sleeve are forced to be slightly elastically deformed during assembly. , So that the sleeve passes through the seat body from its axial direction. This structure is not only unfavorable for assembly, and in order to smoothly assemble the sleeve in the seat body, the material of the sleeve and the seat body must be With proper elasticity, the strength of the positioning caster is greatly reduced.
本發明之目的,是在提供一種能夠克服先前技術的至少一個缺點的定位腳輪。The purpose of the present invention is to provide a positioning caster that can overcome at least one of the disadvantages of the prior art.
於是,本發明定位腳輪,包含一個基座、一個軸管、一個定位塊,及兩個滾輪單元。該基座包括一個界定一橫向貫穿的軸孔的內環面,該基座還設有一沿該內環面切線方向延伸且連通該軸孔的定位槽;該軸管穿設於該軸孔,並包括一連接於該內環壁的固定段,及兩個分別連接於該固定段軸向兩相反側且外露於該基座外的側接段,該固定段外周面凹設有一個對應該定位槽的凹槽;該定位塊穿設於該定位槽而部分嵌卡於該凹槽,使該軸管橫向定位於該軸孔內;該等滾輪單元可轉動地分別套設於該等側接段。Therefore, the positioning caster of the present invention includes a base, a shaft tube, a positioning block, and two roller units. The base includes an inner ring surface defining a laterally penetrating shaft hole, and the base is also provided with a positioning groove extending along the tangential direction of the inner ring surface and communicating with the shaft hole; the shaft tube passes through the shaft hole, And includes a fixed section connected to the inner ring wall, and two side sections respectively connected to the two opposite sides of the fixed section in the axial direction and exposed outside the base. The outer peripheral surface of the fixed section is recessed with a corresponding The groove of the positioning groove; the positioning block penetrates the positioning groove and is partially embedded in the groove, so that the shaft tube is positioned transversely in the shaft hole; the roller units are rotatably sleeved on the sides, respectively Continue paragraph.
本發明的功效在於:藉由該定位塊穿設於該定位槽且部分嵌卡於該凹槽,使該軸管不能相對於該基座左右位移或是旋轉地穿設於該基座,該軸管不是利用凹凸彈性嵌卡的方式與該基座連結,能提升該軸管與該基座的組裝的便利性。The effect of the present invention is that the positioning block penetrates the positioning groove and is partially embedded in the groove, so that the shaft tube cannot be displaced left or right relative to the base or rotatably penetrates the base. The shaft tube is not connected to the base by means of concave-convex elastic inserting, which can improve the convenience of assembling the shaft tube and the base.
參閱圖1至4,本發明定位腳輪的一個實施例,包含一個基座1、一軸管2、一定位塊3、兩個滾輪單元4、一制動單元5,及一安裝座6。1 to 4, an embodiment of the positioning caster of the present invention includes a
該基座1包括一個界定一橫向貫穿的軸孔101的內環面11、一個與該內環面11徑向相背的外環面12,及兩個分別連接於該內環面11與該外環面12之軸向兩相反側間的側面13。該內環面11具有一個縱向延伸且呈平面狀的平面段111,及一連接該平面段111上下兩側緣並與該平面段111共同界定該軸孔101的環面段112。該基座1還設有一自該外環面12底側往上沿該環面段112的切線方向延伸穿過該環面段112而局部連通該軸孔101的定位槽102,及一與該定位槽102相間隔地自該外環面12底側往上延伸貫穿連通該軸孔101的螺孔103。The
該軸管2穿設於該軸孔101,並包括一與該內環面11相連接的固定段21,及兩個分別連接於該固定段21軸向兩相反側且外露於該基座1外的側接段22。該固定段21具有一呈平面狀且與該平面段111相向貼靠的止轉平面212,及一凹設於其外周面並對應該定位槽102的凹槽211。The
該定位塊3是呈柱體,往上穿設於該定位槽102內且部分自該定位槽102與該軸孔101的連通處向內凸出該環面段112,而嵌卡於該軸管2的該凹槽211內。The
參閱圖2、5、6,該等滾輪單元4分別可轉動地套設於該等側接段22,每一滾輪單元4包括一個可轉動地套接於各自的該側接段22的輪圈42,及一個設置於該輪圈42與對應的該側接段22間的軸承41,該輪圈42具有一個朝該基座1突伸越過該軸承41的煞車環部421。Referring to Figures 2, 5 and 6, the
該制動單元5包括兩個分別自該等側面13橫向往外延伸且用以分別往上貼靠該等煞車環部421的煞車件51、一個設置於該基座1與該軸管2間的彈性件52,及一個往上螺接於該螺孔103且用以往上頂推該固定部22的切換件53。該彈性件52是上下彈性頂撐於該基座1與該軸管2間,會恆驅使該軸管2帶動該等輪圈42相對該基座1下移,而使該等煞車環部421分別往下抵靠於該等煞車件51。The
該基座1能相對於該軸管2在一個限轉位置與一個轉動位置上下位移,當該基座1在該限轉位置時(參閱圖5),該等煞車件51分別貼靠該等煞車環部421,而限制該等輪圈42相對於該軸管2轉動。當該基座1受向下的外力作用而克服設置在該基座1與該軸管2間之該彈性件52的彈力時,該基座1會從該限轉位置向下位移至該轉動位置(參閱圖6),此時,該等煞車件51向下脫離該等煞車環部421,而使該等輪圈42能相對於該軸管2旋轉,且該彈性件52被壓縮而蓄積一彈性回復力。當所述外力移除,該彈性件52釋放該彈性回復力而使該基座1向上回復至該限轉位置。The
配合參閱圖7,該切換件53螺接於該基座1的該螺孔103內並徑向向上頂靠於該固定段21外周面。該切換件53是位於該彈性件52正下方,可被螺轉調移而相對該基座1往上頂推該固定段22,使該固定段22克服該彈性件52彈力而相對該基座1上移並使該等煞車環面421脫離該等煞車件51,而使該基座1位移至該轉動位置。In conjunction with FIG. 7, the
該安裝座6連接於該基座1的外環面12,且用於安裝於一種家具 (圖未示),由於用以安裝在家具之該安裝座6的類型眾多,且該安裝座6並非本發明之創作重點,故在此省略說明。The
本發明定位腳輪在組裝時,該安裝座6是一體連接於該基座1上,將該軸管2穿設於該軸孔101內,使該固定段21以該止轉平面212對齊該內環面11的該平面段111地容置於該軸孔101,而使該等側接段22分別突出於該基座1。接著,再將該定位塊3插入並固定於該定位槽102內,該軸管2便無法相對該基座1左右軸向橫移及旋轉,最後再將該等滾輪單元4分別套設於該等側接段22,完成整個定位腳輪的組裝。When assembling the positioning caster of the present invention, the
要特別說明的是,該軸管2是透過該定位槽102與該凹槽211受到該定位塊3的嵌卡固定,以及該平面段111與該止轉平面212的相互貼靠,而無法軸向位移與旋轉地定位於該軸孔101內,但實施上,該平面段111與該止轉平面212非必要,並不會影響該軸管2與該基座1的定位。It should be particularly noted that the
本發明定位腳輪在使用上,是藉由該安裝座6安裝在該家具底部,例如但不限於安裝在座椅腳桿,使用者能先透過將該切換件53向下或向上螺轉位移,而調整該切換件53是否有頂撐該固定段22以壓縮該彈性件52。當該切換件53被調整為頂撐該固定段22且連動該固定段22壓縮該彈性件52時,該基座1會保持在該轉動位置,因此該定位腳輪便不具備煞車制動的功能。In use, the positioning caster of the present invention is installed on the bottom of the furniture through the
當該切換件53被調整為未頂撐該固定段22時,該彈性件52的上下彈性頂撐彈力設計為足以支撐該家具的重量,因此在該家具未承載其它重物時,該彈性件52會使該基座1保持在該限轉位置。當該家具承載一重物後,該重物的重量藉由該安裝座6傳遞至該基座1,使該基座1相對該軸管2下降移動到該轉動位置,並壓縮該彈性件52,而使該滾輪單元4能相對該軸管2旋轉。舉例來說該家具為一種座椅,當使用者坐在座椅上時,該基座1會移動至該轉動位置,使用者可藉由該等滾輪單元4滑動該座椅,而當使用者起身離開該座椅時,該基座1上移至該限轉位置,使該座椅無法透過該等滾輪單元4位移。When the switching
要補充說明的是,該制動單元5與該煞車環部421在實施上並非必要,若該定位腳輪沒有設置該制動單元5,該等滾輪單元4便恆能相對該軸管2轉動,而沒有煞車的功能。It should be added that the
綜上所述,本發明定位腳輪的功效在於:藉由該凹槽211與該定位槽102能受到該定位塊3的定位,使該軸管2無法相對於該基座1左右位移及轉動,取代現有的中空定位腳輪的該軸管2與該基座1是利用彈性材料的變形嵌卡而相互定位,不僅組裝方便,該軸管2和該基座1也可選用非彈性材料以增加強度,因此確實能達到本發明的目的。In summary, the effect of the positioning caster of the present invention is that the
惟以上所述者,僅為本發明之實施例而已,當不能以此限定本發明實施之範圍,凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本發明專利涵蓋之範圍內。However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.
1:基座 101:軸孔 102:定位槽 103:螺孔 11:內環面 111:平面段 112:環面段 12:外環面 13:側面 2:軸管 21:固定段 211:凹槽 212:止轉平面 22:側接段 3:定位塊 4:滾輪單元 41:軸承 42:輪圈 421:煞車環部 5:制動單元 51:煞車件 52:彈性件 53:切換件 6:安裝座1: pedestal 101: Shaft hole 102: positioning slot 103: screw hole 11: inner ring surface 111: plane section 112: torus segment 12: Outer ring surface 13: side 2: Shaft tube 21: fixed segment 211: Groove 212: Stop plane 22: Side connection section 3: positioning block 4: Roller unit 41: Bearing 42: Wheels 421: Brake Ring 5: Braking unit 51: Brake parts 52: Elastic part 53: switch 6: Mounting seat
本發明之其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中: 圖1是本發明的一個實施例的一個立體圖; 圖2是該實施例的一個立體分解圖; 圖3是該實施例的一個側視剖視圖; 圖4是該實施例的一個俯視剖視圖; 圖5是該實施例的一個另一視角的側視剖視圖,說明一基座在一限轉位置; 圖6是一個類似於圖5的視圖,說明該基座在一轉動位置;及 圖7是一個類似於圖5的視圖,說明一切換件被調整向上頂撐一軸管,而使該基座在一轉動位置。Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view of an embodiment of the present invention; Figure 2 is a perspective exploded view of the embodiment; Figure 3 is a side cross-sectional view of the embodiment; Figure 4 is a top sectional view of the embodiment; FIG. 5 is a side cross-sectional view from another perspective of the embodiment, illustrating a base in a rotation-limiting position; Figure 6 is a view similar to Figure 5, illustrating the base in a rotated position; and Fig. 7 is a view similar to Fig. 5, illustrating that a switch member is adjusted to prop up a shaft tube upwards, so that the base is in a rotating position.
1:基座1: pedestal
101:軸孔101: Shaft hole
102:定位槽102: positioning slot
103:螺孔103: screw hole
11:內環面11: inner ring surface
111:平面段111: plane section
112:環面段112: torus segment
12:外環面12: Outer ring surface
13:側面13: side
2:軸管2: Shaft tube
21:固定段21: fixed segment
211:凹槽211: Groove
212:止轉平面212: Stop plane
22:側接段22: Side connection section
3:定位塊3: positioning block
4:滾輪單元4: Roller unit
41:軸承41: Bearing
42:輪圈42: Wheels
5:制動單元5: Braking unit
51:煞車件51: Brake parts
52:彈性件52: Elastic part
53:切換件53: switch
6:安裝座6: Mounting seat
Claims (7)
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TW108132386A TWI724535B (en) | 2019-09-09 | 2019-09-09 | Positioning casters |
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TW108132386A TWI724535B (en) | 2019-09-09 | 2019-09-09 | Positioning casters |
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TW202110667A true TW202110667A (en) | 2021-03-16 |
TWI724535B TWI724535B (en) | 2021-04-11 |
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ITBO20040352A1 (en) * | 2004-06-01 | 2004-09-01 | Emilsider Meccanica | SELF-ADJUSTABLE WHEEL FOR FURNITURE AND SIMILAR |
TWM275110U (en) * | 2005-01-31 | 2005-09-11 | Jin-Tian Liau | Furniture wheel |
US9630450B1 (en) * | 2016-01-12 | 2017-04-25 | Tsung-Yuan Chang | Hollow castor for suitcase |
TWM554055U (en) * | 2017-08-15 | 2018-01-11 | Sunny Castors Co Ltd | Push-type caster wheel positioning structure |
CN207725152U (en) * | 2018-01-09 | 2018-08-14 | 广东翔晟箱配科技有限公司 | Hollow wheel |
CN208801809U (en) * | 2018-08-22 | 2019-04-30 | 中威控股集团有限公司 | A kind of easy-to-mount low abrasion hollow castor wheel |
TWM592829U (en) * | 2019-09-09 | 2020-04-01 | 正州實業股份有限公司 | Alignment casters |
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