GRINDER WITH EASILY REPLACING GRINDING TOOL
First Claim
1. A grinder with easily replacing grinding tool, comprising:
- an elongated main body, a shaft chamber being formed in a front end of the main body;
an activation switch being arranged on the main body and switchable between an activation position and a shutoff position;
a passage being transversely formed in the main body to intersect the shaft chamber;
a slide way being longitudinally formed in the main body, a front end of the slide way communicating with the passage;
a rotary shaft rotatably mounted in the shaft chamber, one end of the rotary shaft outward protruding from the main body for installing a grinding tool thereon;
at least one engaging section being disposed on the rotary shaft;
a chucking button having at least one rod body, a chucking section being formed on a circumference of the rod body, the rod body of the chucking button being fitted in the passage and movable between a chucking position and a releasing position;
when the chucking button is positioned in the chucking position, the rod body being engaged with the engaging section of the rotary shaft;
when the chucking button is positioned in the releasing position, the rod body of the chucking button being disengaged from the engaging section, whereby the rotary shaft can freely rotate and the chucking section is aligned with the front end of the slide way; and
a link mounted in the slide way of the main body and slidable along the slide way;
a resilient member being disposed in the slide way to resiliently abut against the link, whereby in normal state, the resilient member resiliently pushes the link to move rearward;
when the activation switch is positioned in the shutoff position, the link being rearward moved to a releasing position and the front end of the link being not chucked with the chucking button;
when the activation switch is positioned in the activation position, the link is pushed to move forward, whereby the front end of the link is chucked with the chucking section of the chucking button.
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Accused Products
Abstract
A grinder has a main body formed with a shaft chamber and a rotary shaft rotatably mounted in the shaft chamber. One end of the rotary shaft outward protrudes from the main body for installing a grinding tool thereon. A passage and a slide way are formed in the main body. One end of the passage communicates with the shaft chamber. A front end of the slide way communicates with the passage. A chucking button is disposed in the passage. A link is movably arranged in the slide way. An activation switch is mounted on the main body for controlling the operation of the grinder. When the grinder is not activated, the chucking button can be pressed to chuck the rotary shaft for easy replacement of a grinding tool. When the activation switch is switched on to activate the grinder, the link is chucked in the chucking button to prevent the chucking button from being pressed. Accordingly, when the grinder operates, the chucking button cannot chuck the rotary shaft so as to ensure safety. When the rotary shaft is chucked by the chucking button, the activation switch cannot be switched on.
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Citations
19 Claims
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1. A grinder with easily replacing grinding tool, comprising:
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an elongated main body, a shaft chamber being formed in a front end of the main body;
an activation switch being arranged on the main body and switchable between an activation position and a shutoff position;
a passage being transversely formed in the main body to intersect the shaft chamber;
a slide way being longitudinally formed in the main body, a front end of the slide way communicating with the passage;a rotary shaft rotatably mounted in the shaft chamber, one end of the rotary shaft outward protruding from the main body for installing a grinding tool thereon;
at least one engaging section being disposed on the rotary shaft;a chucking button having at least one rod body, a chucking section being formed on a circumference of the rod body, the rod body of the chucking button being fitted in the passage and movable between a chucking position and a releasing position;
when the chucking button is positioned in the chucking position, the rod body being engaged with the engaging section of the rotary shaft;
when the chucking button is positioned in the releasing position, the rod body of the chucking button being disengaged from the engaging section, whereby the rotary shaft can freely rotate and the chucking section is aligned with the front end of the slide way; anda link mounted in the slide way of the main body and slidable along the slide way;
a resilient member being disposed in the slide way to resiliently abut against the link, whereby in normal state, the resilient member resiliently pushes the link to move rearward;
when the activation switch is positioned in the shutoff position, the link being rearward moved to a releasing position and the front end of the link being not chucked with the chucking button;
when the activation switch is positioned in the activation position, the link is pushed to move forward, whereby the front end of the link is chucked with the chucking section of the chucking button. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification