CN201824011U

CN201824011U - Switch trigger mechanism for main handle of miter saw

Info

Publication number: CN201824011U
Application number: CN2010202411621U
Authority: CN
Inventors: 黄云; 徐科松
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2010-06-28
Filing date: 2010-06-28
Publication date: 2011-05-11
Anticipated expiration: 2020-06-28

Abstract

The utility model discloses a switch trigger mechanism for a main handle of a miter saw, comprising a trigger main body installed on a main handle, the trigger main body transversely extends along a Z direction, a first return spring is located between a trigger main body and a main handle, the internal of the main handle is provided with a sliding chute, an installation end of a balancing device is installed in the sliding chute, the balancing device is provided with a first balance end and a second balance end, in an X direction perpendicular to the Z direction, distance between the first balance end and the installation end is equal to distance between the second balance end and the installation end. The switch trigger mechanism in the utility model is advantageous in that, via disposing a balancing device between the main handle and the trigger main body, whether operation by left hand or right hand, and at any position on the trigger main body, the trigger main body can be guaranteed to perform translational motion along the X direction, the switch trigger mechanism is also advantaged by simple structure and convenient operation.

Description

The main grip switches cocking mechanism of mitre saw

Technical field

The utility model relates to a kind of main grip switches cocking mechanism of mitre saw, relates in particular to a kind of suitable left and right sides manual mitre saw master grip switches cocking mechanism.

Background technology

Some electric tools user's operation for convenience in the market becomes to be fit to right-hand man's operation with handle design.In order to realize that electric tool is suitable for right-hand man's operation, guarantee simultaneously with left-handed operation and with right-hand operated feel be consistent, the switch trigger that is arranged on the handle is preferably taked flatly moving type.For when guaranteeing on arbitrarily any by the switch trigger, the switch trigger keeps translation and the stuck phenomenon of not run-off the straight, a kind of between existing trigger main body and the handle is to connect in the mode that single-point rotates, a kind of is to utilize two bigger springs of intensity to withstand the trigger main body, avoid the stressed obvious inequality in both sides to cause the trigger main body to tilt, thus and generation friction between the handle.Generally speaking, adopt the manual feel difference in the previous mode left and right sides, inconvenient right-hand man's operation; Adopt a back mode still can not solve root problem on the one hand, cause the required strength of operating trigger bigger than normal on the other hand, feel is relatively poor.

The utility model content

Technical problem to be solved in the utility model provides a kind of easy to operate comfortable suitable left and right sides manual mitre saw master grip switches cocking mechanism.

For solving the problems of the technologies described above, the utility model provides a kind of main grip switches cocking mechanism of mitre saw, comprise the trigger main body that is installed on the main handle, the trigger main body is along the horizontal expansion of Z direction, first back-moving spring is between trigger main body and main handle, main handle inside is provided with chute, the installation end of one bascule is contained in the chute, bascule has first balance end and second balance end, and distance on perpendicular to the directions X of Z direction between first balance end and the installation end and the distance between second balance end and the installation end equate.

The utility model is by being provided with bascule between the main handle of mitre saw and trigger main body, no matter can guarantee that by any position on the trigger main body trigger main body is along the directions X translation when left hand or right-hand operated, and can the stuck or right-hand man's operating handle difference of run-off the straight, and it is simple in structure, easy to operate.

Description of drawings

Fig. 1 is the mitre saw overall structure schematic diagram of a kind of first-selected embodiment of the utility model;

Fig. 2 is a main grip structure explosive view among Fig. 1 embodiment;

Fig. 3 is master's grip switches plate machine structural representation when switch disconnects among Fig. 1 embodiment;

Fig. 4 is master's grip switches plate machine structural representation during switch closure among Fig. 1 embodiment.

The specific embodiment

With reference to Fig. 1, mitre saw 10 comprise base 1, rotationally be connected in workbench 2 on the base 1, can be pivotally connected to the saw 3 of workbench 2 tops by support arm, sliding bar mechanism and pivot, and by grid device 4.Wherein, saw 3 is by the saw blade 30 of cutting processing part with for saw blade provides the motor 32 of power, and the main handle 31 that motor carries out switch control and operation is formed.The workpiece (not shown) can be placed on the workbench 2, workbench 2 and by grid device 4 together support workpieces.

Mitre saw 10 as shown in Figure 1 can rotate with respect to base around a vertical axis by the workbench 2 that will be supported with saw 3 and realize oblique angle (miter) cutting function and rotate realization hypotenuse (bevel) cutting function around a horizontal axis with respect to workbench 2 by support arm, those skilled in the art should be familiar with the structure that realizes these two kinds of functions, just repeat no more herein.

In conjunction with Fig. 1 and Fig. 2, main handle comprises up knob shell 311 and following handle shell 312 is formed gripping handle.Main handle inside is provided with 317 pairs of motors 32 of a microswitch and controls.

Trigger main body 321 is installed on the main handle 31 and can moves with the handled easily person with respect to main handle 31 and realize microswitch 317 is controlled shown in Fig. 2-4.Trigger main body 321 is along the horizontal expansion of Z direction.Two first back-moving springs 320 are inner and be contained between trigger main body 321 and the main handle 31 and be used for resetting of trigger main body at main handle 31, a left side is formed an interlinked mechanism from cage knob 315 by connecting rod 313 from the cage knob 314 and the right side, the position of lockable trigger main body 321 prevents that the trigger main body from being pressed by accident and triggers microswitch 317 and cause electric motor starting, as shown in Figure 3, on latched position, a left side is from cage knob 314 and right on the course that the left side of cage knob 315 projection 314 ' and right projection 315 ' be positioned at trigger main body 321 moves towards microswitch 317.Second back-moving spring, 318 1 ends are fixed on the main handle 31, the other end be connected from cage knob 314.Before pressing trigger main body 321, must stir any one earlier and move it non-locked position from cage knob, as shown in Figure 4, a left side is from cage knob 314 and right left side projection 314 ' and right projection 315 ' get out of the way on cage knob 315, press trigger main body 321 again and unclamp a left side from cage knob 314 and right from cage knob 315, a left side is from cage knob 314 and right from the left side of cage knob 315 projection 314 ' and right projection 315 ' lean against on 321 liang of lateral surfaces of trigger main body, and trigger main body 321 can be pressed up to contacting with microswitch 317 along direction X with respect to handle.When the operator unclamps trigger main body 321, under back-moving spring 320 effects, trigger main body 321 and microswitch disengage and reset along direction X, a left side disengages from cage knob 314 and right projection and trigger main body 321 from cage knob 315, and a left side resets and drives the right side by connecting rod 313 under 318 effects of second back-moving spring from cage knob 314 and resets from cage knob 315.Because main handle can have right-hand man's operating function, can open a left side earlier from cage knob 314 so work as the operator with left-handed operation, press switch trigger main body 321 again; If it is right from cage knob 315 that the operator can open earlier with right-hand operated, press switch trigger main body 321 again.

Because main handle has right-hand man's operating function, the position that left hand or right-hand operated act on trigger main body 321 is different, for the comfortableness that guarantees to operate, switch trigger 321 need be made can whole translation, and promptly the institute on the trigger main body a bit can move along direction X straight line.In order to guarantee 321 translations of switch trigger main body, main handle 31 inside and trigger main body 321 transverse ends corresponding positions are provided with the chute 401 along the Y direction respectively, the left installation end 402 of bascule 316, right installation end 402 ' be contained in respectively in two chutes 401, bascule 316 has first balance end 403 and second balance end 404, between first balance end 403 and the left installation end 402 along the distance of direction X equal second balance end 404 and right installation end 402 ' between along the distance of direction X, first balance end 403 preferably link to each other with second balance end 404 and as shown in FIG. be a cross bar.In this way, bascule 316 is installed between main handle 31 and the trigger main body 321.When trigger main body 321 is pressed, first balance end 403 of bascule 316 contacts with the inner surface of trigger main body 321 transverse ends respectively with second balance end 404, and can be along with trigger main body 321 with respect to handle towards moving of microswitch and around self left installation end 402 and right installation end 402 ' rotations and slip in chute 401, thereby it is crooked to guarantee that trigger main body 321 can not produce in motion process, maintenance is along the translation of direction X, so no matter the operator presses any part on the trigger main body 321, all but translation is forward for switch trigger 321, and the released parallel resilience in back, stuck failure phenomenon can not take place, be fit to right-hand man's operation.In other embodiments, the installation end of bascule can also fuse.

As shown in Figure 3, on latched position, switch trigger 321 is on the position that microswitch 317 disconnects from cage knob.

As shown in Figure 4, on non-locked position, switch trigger 321 is on the position that makes microswitch 317 conductings from cage knob.

This translation type switch cocking mechanism also can be used for other to be needed to be not limited to mitre saw on the manual instrument in the left and right sides.

The switch cocking mechanism is made the translation structure, and right-hand man's operating handle is the same, and is very comfortable, can be not stuck yet, can really embody right-hand man's operating function of instrument.

Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within the protection domain of the present utility model.

Claims

1. the main grip switches cocking mechanism of a mitre saw, comprise the trigger main body (321) that is installed on the main handle (31), trigger main body (321) is along the horizontal expansion of Z direction, first back-moving spring (320) is positioned between trigger main body (321) and the main handle (31), it is characterized in that, main handle (31) inside is provided with chute (401), the installation end of one bascule (316) is contained in the chute (401), bascule (316) has first balance end (403) and second balance end (404), and distance on perpendicular to the directions X of Z direction between first balance end (403) and the installation end and the distance between second balance end (404) and the installation end equate.

2. the main grip switches cocking mechanism of mitre saw according to claim 1 is characterized in that: described chute (401) is along simultaneously perpendicular to the Y direction of Z direction and directions X.

3. the main grip switches cocking mechanism of mitre saw according to claim 2, it is characterized in that: described installation end comprises left installation end (402) and right installation end (402 ').

4. the main grip switches cocking mechanism of mitre saw according to claim 1, it is characterized in that: described first balance end (403) links to each other with second balance end (404) becomes a cross bar.

5. according to the main grip switches cocking mechanism of each described mitre saw among the claim 1-4, it is characterized in that: a left side is formed an interlinked mechanism from cage knob (315) by connecting rod (313) from the cage knob (314) and the right side, a described left side has left side projection (314 ') and right projection (315 ') from the cage knob (314) and the right side respectively from cage knob (315), and is positioned at trigger main body (321) on the mobile course of microswitch (317).

6. the main grip switches cocking mechanism of mitre saw according to claim 5, it is characterized in that: second back-moving spring (318) one ends are fixed on the main handle (31), the other end be connected from cage knob (314).