CN102581381A - Saw blade protecting cover device of circular sawing machine - Google Patents

Abstract

The invention relates to a saw blade protecting cover device of a circular sawing machine, which mainly comprises an upper protecting cover and a lower protecting cover, wherein the upper protecting cover and the lower protecting cover are mutually jointed in a separable way, when a saw arm pivots towards a direction of a workbench, the upper protecting cover can pivot towards the direction far away from the exposed part of a saw blade relative to the saw arm and is separated from the lower protecting cover, so that the saw blade is exposed and can also pass through a gap of the lower protecting cover to saw a workpiece, when the saw arm pivots towards the direction far away from the workbench, the upper protecting cover can pivot towards the direction of the exposed part of the saw blade relative to the saw arm to cover the saw blade, and is jointed with the lower protecting cover, at the moment, the upper protecting cover and the lower protecting cover can finish positioning, the saw blade protecting cover device can effectively cover the saw blade, and the saw blade can not extend out of.

Description

Translated fromChinese

圆锯机的锯片护盖装置Blade guards for circular saws

技术领域technical field

本发明与圆锯机有关，特别是指一种圆锯机的锯片护盖装置。The invention relates to a circular saw machine, in particular to a saw blade protective cover device for a circular saw machine.

背景技术Background technique

请参阅图1所示的一种圆锯机10，主要包含有一工作台11、一枢转地连接工作台11的锯臂12、一设于锯臂12的动力源13、一可旋转地枢设于锯臂12的一锯片容槽(图中未示)且连接动力源13的锯片14，以及一覆盖锯片14的护盖装置15，其中，护盖装置15具有一上护盖16及一下护盖17，上护盖16枢设于锯臂12，可受锯臂12的带动相对锯片14与锯臂12枢转，下护盖17则是枢设于锯臂12的底部，并具有一缺口(图中未示)供锯片14穿出。由此，当锯臂12朝工作台11枢转时，锯臂12会带动上护盖16相对于锯臂12朝远离锯片14外露部分的方向枢转，锯片14将会外露，亦可穿经下护盖17的缺口以锯切工件。Please refer to acircular saw machine 10 shown in Fig. 1, which mainly includes aworkbench 11, asaw arm 12 pivotally connected to theworkbench 11, apower source 13 provided on thesaw arm 12, a rotatable pivot A saw blade slot (not shown) located in thesaw arm 12 and connected to thesaw blade 14 of thepower source 13, and a cover device 15 covering thesaw blade 14, wherein the cover device 15 has an upper cover 16 and the lower protective cover 17, the upper protective cover 16 is pivotally arranged on thesaw arm 12, and can be driven by thesaw arm 12 to pivot relative to thesaw blade 14 and thesaw arm 12, and the lower protective cover 17 is pivotally arranged on the bottom of thesaw arm 12 , and has a gap (not shown) for thesaw blade 14 to pass through. Thus, when thesaw arm 12 pivots toward theworkbench 11, thesaw arm 12 will drive the upper cover 16 to pivot relative to thesaw arm 12 in a direction away from the exposed part of thesaw blade 14, and thesaw blade 14 will be exposed. Pass through the breach of the lower protective cover 17 to saw the workpiece.

由于下护盖17并未具有定位结构而是处于可任意枢转的状态，若操作者在圆锯机10未使用时不慎碰触到下护盖17，可能迫使下护盖17朝锯片14方向枢转而导致锯片14从下护盖17的缺口穿出，如此将很容易产生操作者的手部被锯片14割伤的意外。Since the lower protective cover 17 does not have a positioning structure but is in a state that can pivot arbitrarily, if the operator accidentally touches the lower protective cover 17 when thecircular saw machine 10 is not in use, the lower protective cover 17 may be forced toward the saw blade. Pivoting in the direction of 14 causes thesaw blade 14 to pass through the breach of the lower cover 17 , which will easily cause the accident that the operator's hand is cut by thesaw blade 14 .

发明内容Contents of the invention

本发明的主要目的在于提供一种圆锯机的锯片护盖装置，其可避免发生手部不慎被锯片割伤的意外。The main purpose of the present invention is to provide a saw blade guard device for a circular saw machine, which can avoid the accident that the hand is accidentally cut by the saw blade.

为了达成上述目的，本发明的锯片护盖装置包含有一上护盖及一下护盖，其中的上护盖于一第一位置及一第二位置之间枢转地连接该圆锯机的一锯臂，该上护盖位于该第一位置时覆盖住该圆锯机的一锯片，该上护盖位于该第二位置时则是未覆盖住该锯片，另外，该上护盖的底端具有一第一定位部；该下护盖以其一端枢转地连接该锯臂而覆盖该锯片的底缘，并以其另一端伸入该上护盖内，该下护盖具有一第二定位部及一供该锯片穿出的缺口，该第一定位部可分离地与该下护盖的第二定位部接合。In order to achieve the above object, the saw blade cover device of the present invention includes an upper cover and a lower cover, wherein the upper cover is pivotally connected to a side of the circular saw between a first position and a second position. The saw arm, the upper cover covers a saw blade of the circular saw machine when the upper cover is in the first position, and does not cover the saw blade when the upper cover is in the second position. In addition, the upper cover The bottom end has a first positioning portion; the lower cover is pivotally connected to the saw arm at one end to cover the bottom edge of the saw blade, and extends into the upper cover with the other end. The lower cover has A second positioning portion and a notch for the saw blade to pass through. The first positioning portion is detachably engaged with the second positioning portion of the lower protective cover.

当未使用该圆锯机时，该上护盖的第一定位部与该下护盖的第二定位部之间是保持在接合的状态，若操作者的手部不慎碰触到该下护盖，该下护盖并不会产生枢转，该锯片护盖装置可完全地包覆该锯片，如此便能避免该锯片从该下护盖的缺口穿出而对操作者的手部造成割伤的意外。When the circular saw machine is not in use, the first positioning portion of the upper cover and the second positioning portion of the lower cover are kept in an engaged state. If the operator’s hand accidentally touches the lower Cover, the lower cover does not pivot, and the saw blade cover device can completely cover the saw blade, so as to prevent the saw blade from passing through the gap of the lower cover and causing serious damage to the operator. Accidents that cause cuts to the hands.

附图说明Description of drawings

为了详细说明本发明的结构、特征及功效所在，以下列举一较佳实施例并配合下列附图说明如后，其中：In order to describe in detail the structure, features and effects of the present invention, a preferred embodiment is listed below and described in conjunction with the following drawings as follows, wherein:

图1为现有锯片护盖装置安装于圆锯机的立体图。FIG. 1 is a perspective view of a conventional saw blade guard device installed on a circular saw machine.

图2为本发明一较佳实施例安装于圆锯机的侧视图。Fig. 2 is a side view of a preferred embodiment of the present invention installed on a circular saw machine.

图3为图2的局部放大图，主要显示上护盖及下护盖之间的结合状态。FIG. 3 is a partially enlarged view of FIG. 2 , mainly showing the bonding state between the upper cover and the lower cover.

图4为图2的局部底视图，主要显示下护盖与锯片之间的关是。Fig. 4 is a partial bottom view of Fig. 2, mainly showing the relationship between the lower cover and the saw blade.

图5类同于图2，主要显示上护盖位于第二位置的状态。FIG. 5 is similar to FIG. 2 and mainly shows the state where the upper cover is in the second position.

图6类同于图3，主要显示本发明一较佳实施例的另一实施态样。FIG. 6 is similar to FIG. 3 and mainly shows another implementation aspect of a preferred embodiment of the present invention.

具体实施方式Detailed ways

请参阅图2，为应用本发明一较佳实施例的锯片护盖装置25的圆锯机20，图中所显示的圆锯机20包含有一用以置放工件的工作台21、一枢转地连接工作台21的锯臂22、一设于锯臂22的动力源23，以及一可旋转地容设于锯臂22的一锯片容槽中(图中未示)且连接动力源23的锯片24，由此，当锯片24受动力源23的驱动而旋转时，可再配合锯臂22相对工作台21的枢转而朝工作台21靠近，用以锯切置放于工作台21的工件。本发明的锯片护盖装置25包含有一上护盖26及一下护盖27。Referring to Fig. 2, it is a circular saw machine 20 using a sawblade guard device 25 according to a preferred embodiment of the present invention. The circular saw machine 20 shown in the figure includes aworkbench 21 for placing workpieces, a pivot The saw arm 22 connected to theworkbench 21 in rotation, a power source 23 located at the saw arm 22, and a saw blade accommodation (not shown) rotatably accommodated in the saw arm 22 and connected to the power source 23 of thesaw blade 24, thus, when thesaw blade 24 is driven by the power source 23 to rotate, it can then cooperate with the pivoting of the saw arm 22 relative to theworkbench 21 and approach theworkbench 21 for sawing and placing on The workpiece of theworkbench 21. The sawblade guard device 25 of the present invention includes anupper guard 26 and alower guard 27 .

上护盖26枢转地连接锯臂22，并可受锯臂22的带动而于一第一位置P1及一第二位置P2之间枢转，当上护盖26位于第一位置P1时，如图2所示，上护盖26将覆盖锯片24的前缘，使锯片24的锯齿242不外露；当上护盖26位于第二位置P2时，如图5所示，上护盖26将不会覆盖锯片24的前缘而使锯片24的锯齿242外露。另外，上护盖26的底端的两相对侧分别具有一凹槽，该二凹槽形成一第一定位部262，如图3所示。Theupper cover 26 is pivotally connected to the saw arm 22, and can be driven by the saw arm 22 to pivot between a first position P1 and a second position P2. When theupper cover 26 is at the first position P1, As shown in Figure 2, the upperprotective cover 26 will cover the front edge of thesaw blade 24, so that thesaw teeth 242 of thesaw blade 24 are not exposed; when the upperprotective cover 26 is in the second position P2, as shown in Figure 5, the upperprotective cover 26 will not cover the leading edge of thesaw blade 24 leaving theteeth 242 of thesaw blade 24 exposed. In addition, two opposite sides of the bottom end of theupper cover 26 respectively have a groove, and the two grooves form afirst positioning portion 262 , as shown in FIG. 3 .

下护盖27以其一端枢转地连接锯臂22而覆盖锯片24的底缘，并以其另一端伸入上护盖26内。下护盖27的底缘具有一供锯片24穿出的缺口272，如图4所示，下护盖27的两相对侧具有一凸部，该二凸部形成一第二定位部274。当锯臂22朝工作台21向下枢转时，上护盖26受锯臂22的带动而相对于锯臂朝远离锯片24外露部分的方向枢转至第二位置P2，迫使上护盖26的第一定位部262与下护盖27的第二定位部274互相分离，锯片24将会显露于外，如图5所示，下护盖27则会受到工件的推顶而产生枢转，此时的锯片24可以部分穿经下护盖27的缺口272以锯切工件。当完成工件的锯切作业而将锯臂22向上枢转时，下护盖27会由本身的重量(亦可设置回位弹簧，作为回位的装置)枢转至原本的位置，上护盖26则是同样受到锯臂22的带动朝锯片24外露部分的方向枢转至第一位置P1，使上护盖26的第一定位部262与下护盖27的第二定位部274相互接合，如图2所示，此时的下护盖27便完成定位，即使之后受到不当外力作用，下护盖27也不会产生枢转，如此当不进行切削作业时，锯片护盖装置25便能有效包覆锯片，避免操作者因锯片24外露而不小心所造成的伤害。The lowerprotective cover 27 is pivotally connected to the saw arm 22 at one end to cover the bottom edge of thesaw blade 24 , and extends into the upperprotective cover 26 with its other end. The bottom edge of thelower cover 27 has anotch 272 for thesaw blade 24 to pass through. As shown in FIG. When the saw arm 22 pivots downward toward theworkbench 21, the upperprotective cover 26 is driven by the saw arm 22 and pivots to the second position P2 relative to the saw arm in a direction away from the exposed part of thesaw blade 24, forcing the upper protective cover. Thefirst positioning part 262 of 26 is separated from thesecond positioning part 274 of thelower cover 27, and thesaw blade 24 will be exposed outside. As shown in Figure 5, thelower cover 27 will be pushed by the workpiece to generate a pivot Turn, thesaw blade 24 at this time can partially pass through thegap 272 of the lowerprotective cover 27 to saw the workpiece. When the sawing operation of the workpiece is completed and the saw arm 22 is pivoted upward, the lowerprotective cover 27 can pivot to the original position by its own weight (return spring can also be provided as a return device), and the upperprotective cover 26 is also driven by the saw arm 22 to pivot to the first position P1 in the direction of the exposed part of thesaw blade 24, so that the first positioningpart 262 of the upperprotective cover 26 and the second positioningpart 274 of the lowerprotective cover 27 are engaged with each other , as shown in Figure 2, thelower guard 27 at this time has just completed the positioning, even if it is subjected to improper external force afterwards, thelower guard 27 will not pivot, so when the cutting operation is not performed, the sawblade guard device 25 The saw blade can be effectively covered, and the operator is prevented from being injured due to careless exposure of thesaw blade 24 .

另一方面，本发明的结构可有不同的变化，如图6所示，上护盖26的第一定位部262由该二凸部所构成，下护盖27的第二定位部274则由该二凹槽所构成，同样可让上护盖26及下护盖27在圆锯机10未使用时互相接合，以达到本发明的目的。On the other hand, the structure of the present invention can have different changes. As shown in FIG. The formation of the two grooves also allows theupper cover 26 and thelower cover 27 to engage with each other when thecircular saw 10 is not in use, so as to achieve the purpose of the present invention.

本发明于前揭实施例中所揭露的构成元件，仅为举例说明，并非用来限制本案的范围，其它等效元件的替代或变化，亦应为本案的权利要求范围所涵盖。The constituent elements disclosed in the foregoing embodiments of the present invention are for illustration only and are not intended to limit the scope of the present application. Substitution or changes of other equivalent elements should also be covered by the claims of the present application.

Claims (4)

Translated fromChinese

1.一种圆锯机的锯片护盖装置，该圆锯机包含有一工作台、一枢转地连接该工作台的锯臂、一设于该锯臂的动力源，以及一可旋转地设于该锯臂且连接该动力源的锯片，该锯片护盖装置包含有：1. A saw blade guard device for a circular saw machine, the circular saw machine comprises a workbench, a saw arm pivotally connected to the workbench, a power source provided on the saw arm, and a rotatable The saw blade installed on the saw arm and connected to the power source, the saw blade guard device includes:一上护盖，于一覆盖该锯片的第一位置及一未覆盖该锯片的第二位置之间枢转地连接该锯臂，其底端具有一第一定位部；以及an upper cover, pivotally connected to the saw arm between a first position covering the saw blade and a second position not covering the saw blade, the bottom end of which has a first positioning portion; and一下护盖，以其一端枢转地连接该锯臂而覆盖该锯片的底缘，并以另一端伸入该上护盖内，该下护盖具有一第二定位部，该第一定位部可分离地与该下护盖的第二定位部接合。The lower protective cover is pivotally connected to the saw arm with one end to cover the bottom edge of the saw blade, and the other end is inserted into the upper protective cover. The lower protective cover has a second positioning part, and the first positioning The part is detachably engaged with the second positioning part of the lower cover.2.如权利要求1所述的圆锯机的锯片护盖装置，其中该上护盖的两相对侧分别具有一凹槽，该二凹槽形成该第一定位部，该下护盖的两相对侧具有一凸部，该二凸部形成该第二定位部，并分别卡合于该二凹槽内。2. The saw blade guard device of a circular saw machine as claimed in claim 1, wherein two opposite sides of the upper guard respectively have a groove, the two grooves form the first positioning portion, and the lower guard Two opposite sides have a protruding part, and the two protruding parts form the second positioning part, and are engaged in the two grooves respectively.3.如权利要求1所述的圆锯机的锯片护盖装置，其中该上护盖的两相对侧分别具有一凸部，该二凸部形成该第一定位部，该下护盖的两相对侧具有一凹槽，该二凹槽形成该第二定位部，并分别供该二凸部卡合。3. The saw blade guard device of a circular saw machine as claimed in claim 1, wherein two opposite sides of the upper guard respectively have a protrusion, the two protrusions form the first positioning portion, and the lower guard Two opposite sides have a groove, the two grooves form the second positioning portion, and are respectively engaged by the two protrusions.4.如权利要求1所述的圆锯机的锯片护盖装置，其中该下护盖还具有一缺口，以供该锯片穿出。4. The saw blade guard device of a circular saw machine as claimed in claim 1, wherein the lower guard further has a notch for the saw blade to pass through.

Images