TWI690386B - abrader - Google Patents
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- TWI690386B TWI690386B TW105118772A TW105118772A TWI690386B TW I690386 B TWI690386 B TW I690386B TW 105118772 A TW105118772 A TW 105118772A TW 105118772 A TW105118772 A TW 105118772A TW I690386 B TWI690386 B TW I690386B
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- rotary blade
- blade
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
- B24B3/46—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of disc blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/02—Bench grinders
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- Mechanical Engineering (AREA)
- Harvester Elements (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
本發明提供一種甚至可對應旋轉刀(5)之外徑的變化之研磨器(1),其毋需設置擷取出旋轉刀(5)之中心點的引導零件。 The present invention provides a grinder (1) that can even respond to the change in the outer diameter of the rotary knife (5) without the need to provide a guide part that extracts the center point of the rotary knife (5).
為了解決此一課題之研磨器(1),其係用於割草機之旋轉刀(5)之研磨器(1),其特徵在於:具備:第一基板(3a),其至少一端被固設;第二基板(3b),其相對前述第一基板(3a)形成特定之角度,且至少一端被固設;及研磨構件(4),其設於前述第一基板(3a)及前述第二基板(3b),與前述旋轉刀(5)之外周抵接而進行研磨。 In order to solve this problem, the grinder (1) is a grinder (1) used for a rotary blade (5) of a lawn mower, and is characterized by comprising: a first substrate (3a), at least one end of which is fixed The second substrate (3b), which forms a specific angle with respect to the first substrate (3a), and at least one end is fixed; and the polishing member (4), which is provided on the first substrate (3a) and the first The second substrate (3b) is in contact with the outer periphery of the rotary blade (5) and polished.
Description
本發明有關一種用於恢復或增加割草機之旋轉刀之鋒利度的研磨器。 The invention relates to a grinder for restoring or increasing the sharpness of a rotary blade of a lawn mower.
先前,於雜草之除去作業中係使用具備原動機的割草機(刈草機),原動機利用化石燃料或電力。一般而言,割草機係於主要管之中心附近具備供使用者抓持之手柄,主要管之後端安裝有原動機,而其前端安裝有旋轉刀。此一旋轉刀之鋒利度若是不佳,則需將其卸除予以研磨。 Previously, weeding machines (mowers) with a prime mover were used in the removal of weeds. The prime mover used fossil fuel or electricity. Generally speaking, a lawnmower is equipped with a handle for the user to grip near the center of the main tube, a prime mover is installed at the rear end of the main tube, and a rotary blade is installed at the front end thereof. If the sharpness of this rotating knife is not good, it needs to be removed and ground.
有鑑旋轉刀之卸除與安裝作業繁雜此一情事,業界曾發明一種毋需卸除旋轉刀,而利用源自割草機之原動機的旋轉之旋轉刀具研削裝置(例如專利文獻1)。 In view of the fact that the removal and installation work of the rotary blade is complicated, the industry has invented a rotary rotary blade cutter grinding device that does not need to remove the rotary blade, but uses the rotation derived from the motive of the mower (for example, Patent Document 1).
然而,先前之旋轉刀具研削裝置,因旋轉刀之外徑與研削面之曲率不一致、或是有必要設置將旋轉刀之中心點擷取出的引導零件,以致使用之旋轉刀受到限制,且零件數目亦多而導致價昂。 However, in the previous rotary cutter grinding device, the outer diameter of the rotary cutter and the curvature of the grinding surface are inconsistent, or it is necessary to provide a guide part that extracts the center point of the rotary cutter, so that the rotary cutter used is limited, and the number of parts It also leads to high prices.
[專利文獻1]日本特開2015-80825號公報 [Patent Document 1] Japanese Patent Laid-Open No. 2015-80825
是以,本發明之目的在於提供一種研磨器,不僅甚至可對應旋轉刀之外徑的變化,還毋需供擷取出旋轉刀之中心點的引導零件。 Therefore, the object of the present invention is to provide a grinder that not only can even correspond to the change in the outer diameter of the rotary knife, but also does not require a guide part for extracting and extracting the center point of the rotary knife.
為了達成上述目的,本件發明採用以下之手段。 In order to achieve the above object, the present invention adopts the following means.
(申請專利範圍第1項之發明) (Invention for the first patent application)
申請專利範圍第1項之發明係一種研磨器,其係用於割草機之旋轉刀,其特徵在於:具備:第一基板,其至少一端被固設;第二基板,其相對前述第一基板形成特定之角度,且至少一端被固設;及研磨構件,其設於前述第一基板及前述第二基板,與前述旋轉刀之外周抵接而進行研磨,前述第一基板及前述第二基板,係由可因前述旋轉刀
之壓抵而撓曲的素材所形成。
The invention claimed in
(申請專利範圍第2項之發明) (Invention applying for patent No. 2)
申請專利範圍第2項之發明,係於申請專利範圍第1項之發明中,前述第一基板及前述第二基板之固設部位,只為旋轉刀之旋轉方向的旋轉刀之外周的到來側。
The invention claimed in
(申請專利範圍第3項之發明) (Invention for the third item of patent scope)
申請專利範圍第3項之發明,係於申請專利範圍第1或2項之研磨器中,前述第一基板與前述第二基板所成之角度為60度~120度。
The invention of claim 3 is in the grinder of
(申請專利範圍第4項之發明) (Invention applying for invention in item 4)
申請專利範圍第4項之發明,係於申請專利範圍第1或2項之研磨器中,分別由矩形構成之前述第一基板及前述第二基板中具備沿長度方向之長孔,前述研磨構件係經由前述長孔而沿前述第一基板及前述第二基板之長度方向可作滑動移動。
The invention of
(申請專利範圍第5項之發明) (Invention applying for invention in item 5)
申請專利範圍第5項之發明,係於申請專利範圍第1或2項之研磨器中,與前述第一基板及前述第二基板各自固定的固定構件為L字型形狀,且具備豎設於前述固定構件之固定片,前述固定片具備貫通前述固定片之固定孔;前述第一基板及前述第二基板於旋轉刀之旋轉方向的旋轉刀之外周的到來側,具備貫通之固設孔;藉由插通前述固定孔與前述固設孔之螺栓及與前述螺
栓螺合之螺帽,前述第一基板及前述第二基板分別固定於固定構件。
The invention of
(申請專利範圍第1項之發明之效果)
(Effects of applying for the invention in
若使用申請專利範圍第1項之發明,旋轉刀外周之圓弧會進入被賦予角度而成為特定之角度的空間之間,故可提供除了甚至能夠對應旋轉刀之外徑的變化以外,也毋需擷取出旋轉刀之中心點的引導零件之研磨器。此外,因第一基板及第二基板之彈性變形而產生撓曲角。藉此,在研磨構件之研磨部與片部之抵接中產生餘隙角。藉由餘隙角之角度變化,可進行對應於壓抵之力量調節的研磨。藉此,使用者可在不致對弄傷旋轉刀而神經緊張之下進行研磨作業。 If the invention of the first patent application is used, the arc of the outer circumference of the rotary blade will enter the space where the angle is given and becomes a specific angle, so it can be provided in addition to the change in the outer diameter of the rotary blade. It is necessary to extract the grinder that guides the center part of the rotary knife. In addition, the deflection angle is generated due to the elastic deformation of the first substrate and the second substrate. Thereby, a clearance angle is generated when the polishing portion of the polishing member contacts the sheet portion. By changing the angle of the clearance angle, it is possible to perform grinding corresponding to the adjustment of the pressure force. In this way, the user can perform the grinding operation without nerve damage to the rotating knife.
(申請專利範圍第2項之發明之效果) (Effects of the invention claimed in item 2)
若為申請專利範圍第2項之發明,較之第一基板及第二基板與旋轉刀外周之抵接位置,成為與旋轉刀外周之到來側(自使用者觀察為逆時鐘旋轉之旋轉刀之情形下,較抵接位置為順時鐘方向側)之位置關係,而與第一基板及第二基板之彈性變形相乘地作用,可進行更適切之研磨作業。
In the invention of
(申請專利範圍第3項之發明之效果) (Effects of the invention claimed in item 3)
較佳的是,以60度~120度之角度設置第一基板及前述第二基板。 Preferably, the first substrate and the second substrate are arranged at an angle of 60 degrees to 120 degrees.
(申請專利範圍第4項之發明之效果) (Effects of the invention claimed in item 4)
若是設置成申請專利範圍第4項之發明般,即使研磨構件之研磨部部分地的磨損,藉由將研磨構件之位置滑動以相應於長孔之長度的程度,可使用未磨損之部位。藉此,可使研磨構件之使用期間增長。
In the case of the invention set forth in
(申請專利範圍第5項之發明之效果)
(Effects of applying for the invention in
若是設置成申請專利範圍第5項之發明般,可形成L字型形狀板與兩片基板(第一基板及第二基板)此等主要零件數目極少之研磨器。
If it is set up as the invention claimed in
1:研磨器 1: grinder
10:螺栓 10: Bolt
11:螺帽 11: Nut
12:釘子 12: Nail
2:固定構件 2: fixed member
20:固定片 20: fixed piece
21:固定孔 21: fixing hole
22:基地固定孔 22: Base fixing hole
3a:第一基板 3a: the first substrate
3b:第二基板 3b: second substrate
30:長孔 30: Long hole
31:固設孔 31: Fixing hole
32:撓曲角 32: deflection angle
4:研磨構件 4: Abrasive components
40:研磨部 40: Grinding department
41:長孔 41: Long hole
42:螺栓 42: Bolt
43:螺帽 43: Nut
5:旋轉刀 5: rotary knife
50:片部 50: film department
51:餘隙角 51: clearance angle
第1圖為研磨器之整體立體圖。 Figure 1 is an overall perspective view of the grinder.
第2圖為研磨器之分解立體圖。 Figure 2 is an exploded perspective view of the grinder.
第3圖為固定構件與第一基板及前述第二基板之整體立體圖。 FIG. 3 is an overall perspective view of the fixing member, the first substrate, and the aforementioned second substrate.
第4圖為固定構件與第一基板及前述第二基板之整體立體圖。 FIG. 4 is an overall perspective view of the fixing member, the first substrate, and the aforementioned second substrate.
第5圖為固定構件與第一基板及前述第二基板之整體俯視圖。 FIG. 5 is an overall plan view of the fixing member, the first substrate, and the aforementioned second substrate.
第6圖為顯示研磨作業的開始之俯視圖。 Fig. 6 is a plan view showing the start of the polishing operation.
第7圖為顯示研磨作業之俯視圖。 Fig. 7 is a plan view showing the polishing operation.
第8圖為顯示研磨作業之部分擴大俯視圖。 Figure 8 is a partially enlarged plan view showing the polishing operation.
以下,茲將本發明之研磨器1與作為實施例而表示之各圖說明之。
Hereinafter, the
第1圖為研磨器1之整體立體圖。第2圖為研磨器1之分解立體圖。
FIG. 1 is an overall perspective view of the
研磨器1乃如第1圖所示,具備:固定構件2、第一基板3a、第二基板3b、及研磨構件4。如第2圖所示,固定構件2與第一基板3a及第二基板3b之端部,係由螺栓10與螺帽11之螺合而固定,研磨器1整體係由釘子12安裝於基地(地面或地板面)。
As shown in FIG. 1, the
藉由將第一基板3a與第二基板3b之特定之角度以60°~120°(較佳為80°~100°)配置而固定,研磨構件4各自將與割草機旋轉刀5之外周接觸。各圖面中,係採用最佳的特定角度90°描繪。
By arranging and fixing the specific angles of the
第3圖為固定構件2與第一基板3a及第二基板3b之
整體立體圖,第4圖為固定構件2與第一基板3a及第二基板3b之整體立體圖,第5圖為固定構件2與第一基板3a及第二基板3b之整體俯視圖。
FIG. 3 shows the fixing
如第1圖~第5圖所示,固定構件2設置於基地(地面或地板面),其為L字型形狀之金屬件。固定構件2之L字型形狀,可分為內側長邊與內側短邊、外側長邊與外側短邊。
As shown in FIGS. 1 to 5, the fixing
如第3圖~第5圖所示,內側短邊之偏內側長邊側豎設有固定片20,內側長邊之非為偏內側短邊側之另一端側形成有固定片20。換言之,有關內側短邊與內側長邊二者,自上方觀察之下,於順時鐘運行方向側之端部分別形成有固定片20。藉此,固定片20被設定為自上方觀察,逆時鐘方向之旋轉刀5的旋轉方向之旋轉刀5的外周之到來側。
As shown in FIG. 3 to FIG. 5, a fixing
此外,固定片20分別相對固定構件2之平面朝垂直上方延伸,且設有貫通固定片20之固定孔21。固定孔21中分別插通螺栓10之軸。
In addition, the fixing
如第3圖~第5圖所示,固定構件2之L字型形狀之外側短邊與外側長邊的交點附近、外側長邊之非為偏外側短邊側之一端附近、以及外側短邊之非為偏外側長邊側之一端附近,分別設有基地固定孔22。基地固定孔22中插通有釘子12之軸。
As shown in FIGS. 3 to 5, the vicinity of the intersection of the outer short side and the outer long side of the L-shaped shape of the fixing
作為固定構件2可例示的是不鏽鋼等之金屬板,固定片20可由彎折加工而設置。
An example of the fixing
如第1圖~第4圖所示,第一基板3a與第二基板3b分別具備長孔30及固設孔31。
As shown in FIGS. 1 to 4, the
長孔30係以沿著第一基板3a與第二基板3b各自之長度方向的形態,設置於矩形狀之第一基板3a與第二基板3b之大致中央的上端部附近與下端部附近。如此,可使研磨構件4之安裝位置相對於第一基板3a與第二基板3b之長度方向能夠滑動。
The
固設孔31於第一基板3a與第二基板3b各自之中,只設置於旋轉刀5之旋轉方向的旋轉刀5之外周的到來側(自上方觀察,順時鐘方向運行側之)端部附近。一般而言,割草機之旋轉刀5自上方觀察為逆時鐘旋轉,如此,第一基板3a與第二基板3b各自之固定位置,於第一基板3a與第二基板3b各自之長度方向之中,較之研磨構件4與旋轉刀5之接觸位置,係成為旋轉刀5之到來側。
The fixing
此處,端部附近之距離,於第一基板3a與第二基板3b各自之中,為長度距離之3%~9%的範圍內。於第1圖~第7圖中,從旋轉刀5之到來側端部,朝旋轉刀5之運行方向前進長度距離之6%的位置處,設置有固設孔31。固設孔31若是設置成於第一基板3a與第二基板3b各自之長度方向延伸的長孔,則可將研磨構件4滑動,令人滿意。
Here, the distance near the end is within the range of 3% to 9% of the length distance between the
研磨構件4乃如第1圖及第2圖所示,安裝於第一基板3a與第二基板3b各自之大致中央部,於第一基板3a與第二基板3b各自之短邊方向的大致中央具備研磨部40,而其兩端附近具備長孔41。此處,兩端附近之距離,為第一基板3a與第二基板3b各自之短邊方向距離之7%~13%的範圍內。第1圖與第2圖中,自端部10%之距離設為長孔41之中央。
As shown in FIGS. 1 and 2, the polishing
研磨部40為磨石或陶瓷等,供研磨旋轉刀5之外周的構件。
The polishing
長孔41係將源於長孔30之研磨構件4的滑動量進一步增加者。如此,即使研磨部40部分磨損,仍可將研磨構件4之位置依長孔30及長孔41之合併長度滑動,而將研磨部40之未磨損部位定位,並以螺栓42與螺帽43之螺合固定。藉此,可使研磨構件4之使用期間增長(減短更換期間)。又,於不使用螺栓42與螺帽43之螺合,而將研磨構件4與第一基板3a及第二基板3b各自接合一體化之情形下,藉由將固設孔31設為長孔,可進行前述之滑動及定位。
The
第6圖為顯示研磨作業的開始之俯視圖,第7圖為顯示研磨作業之俯視圖,第8圖為顯示研磨作業之部分擴大俯視圖。 Figure 6 is a plan view showing the start of the polishing operation, Figure 7 is a plan view showing the polishing operation, and Figure 8 is a partially enlarged plan view showing the polishing operation.
割草機(一般割草機、不限地形割草機),係用以將草或小直徑樹割斷之機械。割草機之構造係由原動機(馬達、引擎)、主要管(軸、桿)、旋轉刀(片鋸)所構成,操作者操作固定於主要管之手柄進行割草。一般而言,右手部分設有引擎節流閥,藉由將其調節而調節引擎之轉數(旋轉刀之旋轉數)。於引擎式中,與驅動軸之間具有離心式之離合器,可防止始動/怠速時等之齒部之無用旋轉,還可防備咬入草等所導致之齒部之停止。 Lawn mower (general lawn mower, unlimited terrain lawn mower) is a machine used to cut grass or small-diameter trees. The structure of the lawn mower is composed of the prime mover (motor, engine), main tube (shaft, rod), and rotary blade (blade saw). The operator operates the handle fixed to the main tube to cut the grass. Generally speaking, the right-hand part is provided with an engine throttle valve, and the number of revolutions of the engine (the number of revolutions of the rotary knife) is adjusted by adjusting it. In the engine type, there is a centrifugal clutch with the drive shaft, which can prevent the useless rotation of the teeth at start/idle speed, and also prevent the teeth from stopping due to biting into the grass.
研磨作業係如第6圖所示,使用者係於怠速狀態下將未旋轉之旋轉刀5壓抵於以下所述之研磨器1後,於第7圖所示之狀態下,使用者開啟引擎節流閥,使用割草機之旋轉力進行旋轉刀5之研磨。
The grinding operation is shown in FIG. 6, the user presses the
又,於本發明中,用於發明之割草機之旋轉刀5係如第8圖所示,係假想為外周具備多個釩鋼等之合金片作為片部50之片鋸。
In addition, in the present invention, as shown in FIG. 8, the
如前所述般,於具備片部50之旋轉刀5之研磨中,旋轉刀5若於第6圖之箭頭方向被施加力時,第一基板3a與第二基板3b會因研磨部40壓抵於旋轉刀5而自原始之位置變位,產生撓曲角32。此一撓曲角32若是產生,旋轉刀5之片部50與研磨構件4之研磨部40之接觸之中,將會如第8圖所示產生餘隙角51。
As described above, in the polishing of the
就平面幾何學而言,有關圓弧與切線,若是將切線拉
向圓,則於接點其將與半徑垂直相交。基於此,旋轉刀5之片部50與圓弧位置近似,第一基板3a與第二基板3b各自之研磨部40與切線近似。由此,於第6圖所示之狀態下,即使使用者以大力將旋轉刀5壓抵於第一基板3a與第二基板3b各者之情形下,除了撓曲角32之角度變大以外,餘隙角51之角度也會變大。
In terms of plane geometry, with regard to arcs and tangents, if the tangent is pulled
To the circle, it will intersect the radius perpendicularly at the joint. Based on this, the
研磨作業時若是有餘隙角51,則片部50之刃咬入研磨部40之可能性消失,而且該時彈開(所謂之反沖(kick back))之可能性亦可消弭。基於此,使用者可在不致對弄傷旋轉刀5或反沖而神經緊張之下進行研磨作業。再者,使用者還可藉由調節壓抵旋轉刀5之力而調整餘隙角51,以之調節研磨之狀態。
If there is a clearance angle 51 during the polishing operation, the possibility that the blade of the
1‧‧‧研磨器 1‧‧‧Grinder
10‧‧‧螺栓 10‧‧‧bolt
12‧‧‧釘子 12‧‧‧ nails
2‧‧‧固定構件 2‧‧‧Fixed member
20‧‧‧固定片 20‧‧‧Fixed film
3a‧‧‧第一基板 3a‧‧‧The first substrate
3b‧‧‧第二基板 3b‧‧‧Second substrate
4‧‧‧研磨構件 4‧‧‧Abrasive components
40‧‧‧研磨部 40‧‧‧Grinding Department
41‧‧‧長孔 41‧‧‧Long hole
42‧‧‧螺栓 42‧‧‧bolt
43‧‧‧螺帽 43‧‧‧ Nut
Claims (5)
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JP2015-157854 | 2015-08-10 | ||
JP2015157854A JP6548507B2 (en) | 2015-08-10 | 2015-08-10 | Polisher |
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TW201718172A TW201718172A (en) | 2017-06-01 |
TWI690386B true TWI690386B (en) | 2020-04-11 |
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KR (1) | KR101821509B1 (en) |
TW (1) | TWI690386B (en) |
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KR102617890B1 (en) | 2022-01-19 | 2023-12-27 | 최웅 | Apparatus for polishing circular saw blade |
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JP2015080825A (en) * | 2013-10-21 | 2015-04-27 | 株式会社エスケー | Rotary cutter grinding device |
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US2437443A (en) * | 1945-10-18 | 1948-03-09 | Sporket Albert | Sharpening device for lawn mowers |
ITFI20130294A1 (en) * | 2013-12-02 | 2015-06-03 | Futura Spa | SHARPENING DEVICE. |
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KR101821509B1 (en) | 2018-01-23 |
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JP2017035749A (en) | 2017-02-16 |
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