CN101406972A - Protecting cover assembly for circular sawing machine and quick-release structure thereof - Google Patents

Abstract

The invention relates to a quick-release structure for a protecting cover assembly of a circular sawing machine, which comprises a combining seat, a shaft piece and a deflector rod, wherein the combining seat is provided with two side walls and a clamping groove formed between the two side walls, the two side walls are respectively provided with a through hole, the clamping groove is used for embedding a cleaver, the shaft piece is arranged in the two through holes of the combining seat in a penetrating way and is provided with an embedding section which is accommodated in an accommodating part of a gap of the cleaver, the side periphery of the embedding section is provided with two planes, and the deflector rod is fixedly arranged on the shaft piece.

Description

Cover assembly for circular saw machine and its quick release structure

technical field

The invention relates to a circular saw machine, in particular to a quick-release structure for a circular saw machine cover assembly.

Background technique

U.S. Patent Publication No. 2007/0113714 and No. 2007/0113715 respectively disclose a guide system for a power sawing machine. The guide systems of the two patents mainly include a rivet and a Quick release device.

In the patent case No. 2007/0113714, the quick release device includes a support base, a lock block and two fixing bolts, wherein the bottom of the lock block has a slot for embedding of a chopper, and the two fixing bolts pass through the support base respectively The left and right sides of the locking block are used to combine the support seat and the locking block, and one of the fixing bolts passes through the fixing hole of the riving knife to fix the riving knife in the slot of the locking block. When the user wants to remove the quick release device from the riving knife, he needs to apply force to push the lock block to the left to make the fixing bolt disengage from the fixing hole of the riving knife. In this way, the quick release device can be removed from the riving knife down.

In Patent No. 2007/0113715, a control member is used to pull a plug so that the control member drives a plug to break away from the fixing hole of the riving knife, so that the quick release device is disassembled from the riving knife.

However, although these two patents can install the quick-release device on the riving knife or disassemble it from the riving knife, the structure of the quick-release device of the two patents is relatively complicated, and it will cost a lot of time when installing or dismounting. The time is also longer, which is likely to cause inconvenience to the user in the operation.

Contents of the invention

In view of the deficiencies in the prior art, the main purpose of the present invention is to provide a quick release structure for the circular saw machine cover assembly, which has a simple structure and can quickly install a non-return claw assembly or a cover on the A riving knife or unloaded from the riving knife.

To achieve the purpose of exposing, the quick release structure for the circular saw machine cover assembly of the present invention includes a combination seat, a shaft and a driving lever, and the circular saw machine cover assembly also includes a splitting knife, the splitting tool There is a notch, the notch has a communicating portion, and a housing portion is located inside the communicating portion, the width of the communicating portion is smaller than the width of the housing portion; the joint seat has two side walls and a clamping groove formed on the two sides Between the walls, each of the two side walls has a perforation, and the clamping groove is used for inserting the riving knife; the shaft member is passed through the two perforating holes of the joint seat, and has an embedding section accommodated in the notch of the riving knife In the accommodating portion, the cross section of the engaging section has a long axis and a short axis, the length of the long axis is greater than the width of the connecting portion of the notch of the riving knife, and the length of the short axis is smaller than the width of the connecting portion of the notch of the riving knife; The driving rod is fixed on the shaft.

For a better understanding of the structure and features of the present invention, a preferred embodiment is given and illustrated as follows, wherein:

Description of drawings

Fig. 1 is the front view of a preferred embodiment of the present invention;

Figure 2 is an exploded perspective view of a preferred embodiment of the present invention;

Fig. 3 is a side view of a preferred embodiment of the present invention;

Fig. 4 is a sectional view along 4-4 of Fig. 3;

Fig. 5 is a partially enlarged view of the rivet perforation and the shaft in Fig. 4;

Fig. 6 is similar to Fig. 3, but shows the state of its quick release structure unlocking;

Fig. 7 is a sectional view along line 7-7 of Fig. 6 .

[Description of main component symbols]

10 Cover assembly for circular saw

20 splitting knife 22 gap 221 connecting part

L1 connecting part width 223 accommodating part

L0 accommodation part width 24 long slots

30 quick release structure

40 combination seat 42 side wall 44 clip groove

421 perforation

50 shaft parts 52 embedded segment 521 plane

523 major axis L2 major axis length

525 minor axis L3 minor axis length

54 external thread

60 lever 62 through hole 64 nut

66 wave washer

70 non-return claw assembly 80 cover 82 connecting rod

Detailed ways

Referring to FIGS. 1 to 2 , a circular saw machine cover assembly 10 provided by a preferred embodiment of the present invention includes a splitter 20 , two quick release structures 30 , two non-return claw assemblies 70 and a cover 80 .

The riving knife 20 has two notches 22 and two long grooves 24, each of the two notches 22 has a communicating portion 221, and a receiving portion 223 is located inside the communicating portion 221, the communicating portion 221 extends along the vertical direction, and Its width L1 is less than the width L0 of the accommodating portion 223; the riving knife 20 can be connected with a saw blade holder assembly (not shown) through a connecting assembly (not shown) located in the two long slots 24 , so that the riving knife 20 can move up and down along with a saw blade (not shown), so as to prevent improper clamping of the part of the workpiece (not shown) that has been cut by the saw blade during the sawing process .

Please refer to FIG. 2 to FIG. 4 , each of the two quick release structures 30 includes a coupling seat 40 , a shaft member 50 and a driving rod 60 .

The coupling seat 40 has two sidewalls 42 and a clamping groove 44 formed between the two sidewalls 42 , each of the sidewalls 42 has a through hole 421 , and the clamping groove 44 is for inserting the riving knife 20 therein.

The shaft member 50 is inserted into the through hole 421 of the coupling seat 40, and has an engaging section 52 accommodated in the accommodating portion 223 of the notch 22 of the riving knife 20, please refer to FIG. 5, the engaging section 52 Two parallel planes 521 are formed on the side periphery, so that the section of the engaging section 52 has a major axis 523 and a minor axis 525, the length L2 of the major axis 523 is greater than the width L1 of the communicating portion 221 of the notch 22 of the riving knife 20 The length L3 of the short axis 525 is smaller than the width L1 of the connecting portion 221 of the notch 22 of the riving knife 20 , and one end of the shaft member 50 is provided with an external thread 54 .

The lever 60 has a through hole 62 for the shaft 50 to pass through, and the shape of the through hole 62 corresponds to the shape of the shaft 50, so that the shaft 50 and the lever 60 cannot be relatively pivoted. Turn; the quick release structure 30 also includes a nut 64 and a wave washer 66, the nut 64 is screwed on the shaft 50 and against the driving rod 60, in order to prevent the shaft 50 from contacting the driving rod 60 are loosened from each other, and the wave washer 66 is sleeved on the shaft member 50 and clamped between the joint seat 40 and the driving rod 60 to prevent the positioning of the driving rod 60 from loosening.

The two non-return pawl assemblies 70 are pivotally mounted on the coupling seat 40 of the quick release structure 30 to prevent the workpiece from backing up suddenly during the sawing process.

The cover 80 is pivotally mounted on the joint seat 40 of the other quick-release structure 30 through a connecting rod 82 to prevent cutting chips from flying around during working sawing and possible dangers caused by direct exposure of the saw blade.

Through the above-mentioned structure, when the user wants to disassemble the two non-return claw assemblies 70, he only needs to apply force to pull the lever 60 corresponding to the quick-release structure 30, so that the short axis 525 of the shaft member 50 embedded in the engaging section 52 is aligned with the horizontal plane. Parallel, as shown in Figure 6 and Figure 7, at this time, the user can apply force to lift up the two non-return claw assemblies 70 and the quick release structure 30, so that the engaging section 52 of the shaft member 50 passes through the riving knife The connecting portion 221 of the 20 gap 22 is separated from the riving knife 20, through which, the two non-return claw assemblies 70 can be unloaded smoothly; Move the driving lever 60 so that the short axis 525 of the inserting section 52 of the shaft member 50 is parallel to the horizontal plane, and then make the inserting section 52 enter the accommodating portion 223 through the communicating portion 221 of the notch 22 of the riving knife 20, and then, Pull the driving lever 60 again so that the short axis 521 of the engaging section 52 of the shaft member 50 is non-parallel to the horizontal plane (as shown in Figures 3 and 4), so that the two non-return pawl assemblies 70 can be firmly connected to the riving knife 20 combine together.

The quick release structure 30 for the circular saw machine cover assembly only has a few components such as the coupling seat 40 and the shaft 50, so the structure is very simple; and by rotating the shaft 50 to different angles, the The quick release structure 30 is switched to the locked state or unlocked, so the non-return claw assembly 70 can be quickly fixed or detached from the riving knife 20, thereby greatly improving the convenience of operation.

In addition, the installation or removal method of the cover 80 is completely the same as that of the non-return pawl 70 assembly, and will not be repeated here.

The above is only a detailed description and illustration of the preferred embodiments of the present invention. All embodiments that conform to the spirit of the patent scope of the present invention and its similar changes are included in the scope of the present invention. Anyone who is familiar with this Within the field of the present invention, changes or modifications that can be easily conceived by the skilled person can all be covered by the scope of the patent of the following case.

Claims (20)

1. quick-disassembly structure that is used for protecting hood assembly of ring saw machine, this protecting hood assembly of ring saw machine includes a chopper, this chopper is to have a breach, this breach has an interconnecting part, and one holding part be positioned at this interconnecting part inboard, the width of this interconnecting part is characterized in that less than the width of this holding part this quick-disassembly structure comprises:

One connecting support has two sidewalls and a clip slot and is formed between this two sidewall, and a wherein sidewall of this connecting support has a perforation, and this clip slot embeds wherein for this chopper; And

A part, be placed through the perforation of this connecting support, this part has an inlay card section and is placed in the holding part of this chopper breach, the cross section of this inlay card section has a major axis and a minor axis, the length of this major axis is greater than the interconnecting part width of this chopper breach, and the length of this minor axis is not more than the interconnecting part width of this chopper breach.

2. the quick-disassembly structure that is used for protecting hood assembly of ring saw machine as claimed in claim 1 is characterized in that: the side periphery of this part inlay card section is formed with two mutual parallel planes.

3. the quick-disassembly structure that is used for protecting hood assembly of ring saw machine as claimed in claim 1 is characterized in that: comprise a driving lever and be fixedly arranged on this part.

4. the quick-disassembly structure that is used for protecting hood assembly of ring saw machine as claimed in claim 3 is characterized in that: this driving lever has a through hole and places for this part, and the shape of this through hole is corresponding with the shape that this part places the place.

5. the quick-disassembly structure that is used for protecting hood assembly of ring saw machine as claimed in claim 3, it is characterized in that: this part has external screw thread, this quick-disassembly structure that is used for protecting hood assembly of ring saw machine includes a nut and a wave packing ring, this nut screw lock is in this part and be resisted against this driving lever, this wave gasket sleeve be located at this part and by clipping between this connecting support and this driving lever.

6. hood-protecting assembly that is used for circular sawing machine is characterized in that including:

One chopper has a breach, and this breach has an interconnecting part, and a holding part is positioned at this interconnecting part inboard, and the width of this interconnecting part is less than the width of this holding part;

One connecting support has two sidewalls and a clip slot and is formed between this two sidewall, and a wherein sidewall of this connecting support has a perforation, and this clip slot embeds wherein for this chopper;

One detent assembly is hubbed at this connecting support; And

A part, be placed through the perforation of this connecting support, this part has an inlay card section and is placed in the holding part of this chopper breach, the cross section of this inlay card section has a major axis and a minor axis, the length of this major axis is greater than the interconnecting part width of this chopper breach, and the length of this minor axis is not more than the interconnecting part width of this chopper breach.

7. the hood-protecting assembly that is used for circular sawing machine as claimed in claim 6 is characterized in that: the side periphery of this part inlay card section is formed with two mutual parallel planes.

8. the hood-protecting assembly that is used for circular sawing machine as claimed in claim 6 is characterized in that: include a driving lever and be fixedly arranged on this part.

9. the hood-protecting assembly that is used for circular sawing machine as claimed in claim 8 is characterized in that: this driving lever has a through hole and places for this part, and the shape of this through hole is corresponding with the shape that this part places the place.

10. the quick-disassembly structure that is used for protecting hood assembly of ring saw machine as claimed in claim 8, it is characterized in that: this part has external screw thread, this hood-protecting assembly that is used for circular sawing machine includes a nut and a wave packing ring, this nut screw lock is in this part and be resisted against this driving lever, this wave gasket sleeve be located at this part and by clipping between this connecting support and this driving lever.

11. a hood-protecting assembly that is used for circular sawing machine is characterized in that including:

One chopper has a breach, and this breach has an interconnecting part, and a holding part is positioned at this interconnecting part inboard, and the width of this interconnecting part is less than the width of this holding part;

One connecting support has two sidewalls and a clip slot and is formed between this two sidewall, and a wherein sidewall of this connecting support has a perforation, and this clip slot embeds wherein for this chopper;

One hides, and is hubbed at this connecting support; And

A part, be placed through the perforation of this connecting support, this part has an inlay card section and is placed in the holding part of this chopper breach, the cross section of this inlay card section has a major axis and a minor axis, the length of this major axis is greater than the interconnecting part width of this chopper breach, and the length of this minor axis is not more than the interconnecting part width of this chopper breach.

12. the hood-protecting assembly that is used for circular sawing machine as claimed in claim 11 is characterized in that: the side periphery of this part inlay card section forms two mutual parallel planes.

13. the hood-protecting assembly that is used for circular sawing machine as claimed in claim 11 is characterized in that: include a driving lever and be fixedly arranged on this part.

14. the hood-protecting assembly that is used for circular sawing machine as claimed in claim 13 is characterized in that: this driving lever has a through hole and places for this part, and the shape of this through hole is corresponding with the shape that this part places the place.

15. the quick-disassembly structure that is used for protecting hood assembly of ring saw machine as claimed in claim 13, it is characterized in that: this part has external screw thread, this hood-protecting assembly that is used for circular sawing machine includes a nut and a wave packing ring, this nut screw lock is in this part and be resisted against this driving lever, this wave gasket sleeve be located at this part and by clipping between this connecting support and this driving lever.

16. a hood-protecting assembly that is used for circular sawing machine is characterized in that including:

One chopper has two breach, and this two breach respectively has an interconnecting part, and a holding part is positioned at this interconnecting part inboard, and the width of this interconnecting part is less than the width of this holding part;

Two connecting supports respectively have two sidewalls and a clip slot and are formed between this two sidewall, and this two sidewall respectively has a perforation, and this clip slot embeds wherein for this chopper;

One detent assembly is hubbed at this connecting support of one;

One hides, and is hubbed at another this connecting support; And

Two parts, be placed through the perforation of this two connecting support respectively, these two parts respectively have an inlay card section and are placed in respectively in the holding part of this chopper breach, the cross section of this inlay card section has a major axis and a minor axis, the length of this major axis is greater than the interconnecting part width of this chopper breach, and the length of this minor axis is not more than the interconnecting part width of this chopper breach.

17. the hood-protecting assembly that is used for circular sawing machine as claimed in claim 16 is characterized in that: the side periphery of these two part inlay card sections all is formed with two mutual parallel planes.

18. the hood-protecting assembly that is used for circular sawing machine as claimed in claim 16 is characterized in that: include two driving levers and be fixedly arranged on this two parts.

19. the hood-protecting assembly that is used for circular sawing machine as claimed in claim 18 is characterized in that: this two driving lever respectively has a through hole and places for this part, and the shape of this through hole is corresponding with the shape that this part places the place.

20. the quick-disassembly structure that is used for protecting hood assembly of ring saw machine as claimed in claim 18, it is characterized in that: these two parts have external screw thread, this hood-protecting assembly that is used for circular sawing machine includes two nuts and two wave packing rings, this nut be screw lock in this part and be resisted against this driving lever, this wave gasket sleeve be located at this part and by clipping between this connecting support and this driving lever.

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