CN201030588Y - Stop structure for bench saw - Google Patents

Abstract

A stop structure for a table saw comprises a support arm and a stop member, wherein the front end of the support arm is arranged on a riving knife of the table saw, the stop member is arranged at the rear end of the support arm, the stop member is provided with a stop surface, and the distance from the bottom edge of the stop surface to a base table surface of the table saw is larger than or equal to the distance from the top edge of a saw blade of the table saw to the base table surface of the table saw; therefore, the table saw machine of the utility model can avoid the problem that the workpiece cannot be sawed off by the saw blade due to too thick thickness of the workpiece through the stop surface of the stop piece, thereby saving the time for adjusting the height of the saw blade and increasing the convenience in use.

Description

Stop structures for table saws

technical field

The utility model relates to a table saw, in particular to a stop structure for a table saw.

Background technique

Please refer to a conventional table saw 1 shown in FIG. 1 , which includes a base 2 , a saw blade 3 , a splitter 4 and a cover 5 . The base 2 has a surface 6 for placing a workpiece 7 (such as wood) to be processed; the saw blade 3 can be controlled to rise or fall relative to the table 6, and can saw the workpiece 7 when rising; the riving knife 4 passes through A connection assembly (not shown) is connected with the saw blade 3, so that the riving knife 4 can move up and down synchronously with the saw blade 3. The function of the riving knife 4 is to prevent improper clamping of the workpiece 7 that has been cut And impede the advancement of the workpiece 7, and then cause danger to the staff; one end of the protective cover 5 is pivotally connected to the top of the splitting knife 4 and can be properly swiveled, and it is usually covered on the outside of the saw blade 3 to prevent improper cuts. , and be lifted properly during sawing.

In use of the above-mentioned table saw machine 1, the work piece 7 whose thickness exceeds the sawing range of the saw blade 3 (that is, the height distance from the top edge of the saw blade 3 to the table top 6) is often taken due to inattention of the staff, as shown in FIG. 1 As shown, at this time, the workpiece 7 has often begun to be sawed, and when the staff finds that the workpiece 7 cannot be cut and separated by the saw blade 3, or until one end of the workpiece 7 touches the pivot point P of the protective cover 5 and the riving knife 4, the work The personnel have to stop the machine first and then withdraw the workpiece 7 from the saw blade 3, and readjust the height of the saw blade 3 until the workpiece 7 can be completely sawed off. However, this will inevitably cause work delays. Furthermore, after repeatedly adjusting the height of the saw blade 3 for sawing workpieces with different thicknesses, if it is found that the saw blade 3 needs to be adjusted each time after the sawing starts, it will be quite time-consuming and easily cause trouble for the staff. with trouble.

Utility model content

The main purpose of the utility model is to provide a stop structure for a table saw machine, which can effectively prevent the situation that the workpiece cannot be completely sawed off by the saw blade due to its too thick thickness.

In order to achieve the above object, the utility model provides a stop structure for a table saw machine, which includes a base with a table top, a saw blade that can be operated to rise or fall relative to the table top, and a The riving knife that moves up and down together with the saw blade is characterized in that:

The blocking structure includes:

a support arm, the front end of which is provided on the riving knife; and

A stopper, located at the rear end of the support arm, the stopper has a stopper surface, the distance from the bottom edge of the stopper surface to the base table is greater than or equal to the distance from the top edge of the saw blade to the base The distance from the table top.

Wherein the stopper is pivotally arranged at the rear end of the support arm.

It also includes an elastic piece, the elastic piece is arranged on the stopper.

Wherein the stopper is fixed at the rear end of the support arm.

Wherein the distance from the bottom edge of the blocking surface to the base table and the height difference from the top edge of the saw blade to the base table are within 10 mm.

The utility model provides a table saw machine, which is characterized in that it comprises:

a base with a top;

a saw blade located inside the base and operable to be raised or lowered relative to the table;

a riving knife positioned in front of the saw blade and raised or lowered with the saw blade; and

A stop structure is combined with the riving knife and rises or falls together with the riving knife, the stop structure has a stop surface, the stop surface is located behind the saw blade, and the bottom edge of the stop surface The distance from the table top of the base is greater than or equal to the distance from the top edge of the saw blade to the table top of the base.

Wherein the stop structure includes a support arm and a stop piece, the support arm is located above the top edge of the saw blade, the front end of the support arm is arranged on the riving knife, and the back end is connected to the stop piece, the stop piece has The stop surface.

It includes a quick release structure, the quick release structure is detachably connected to the top of the riving knife, and the front end of the support arm is connected with the quick release structure.

Wherein the support arm and the stopper are integrally formed.

Wherein the height difference between the distance from the bottom edge of the blocking surface to the base table and the distance from the top edge of the saw blade to the base table is within 10 mm.

The beneficial effects of the utility model are:

The stop structure used in the table saw machine of the utility model can effectively prevent the situation that the workpiece cannot be completely sawed off by the saw blade because the thickness of the workpiece is too thick.

The stopping structure of the present invention includes a supporting arm and a stopping member. The front end of the support arm is arranged on a chopping knife of the table saw machine; the stop member is arranged on the rear end of the support arm, and the stop member has a stop surface, and the bottom edge of the stop surface reaches the table saw machine The distance from a base table of the table saw is L1, and the distance from the top edge of a saw blade of the table saw to the base table is L2, L1≥L2, in a preferred embodiment of the present invention, L1 and The height difference between L2 is within 10mm.

Description of drawings

The following preferred embodiments are listed below in conjunction with the accompanying drawings, in order to describe the structure and effect of the present utility model in detail as follows, wherein:

Fig. 1 is a schematic diagram of an existing table saw machine.

Fig. 2 is a three-dimensional exploded view of a preferred embodiment of the present invention.

Fig. 3 is a side view of a preferred embodiment of the present invention installed on a table saw.

FIG. 4 is a use state diagram of FIG. 3 .

Fig. 5 is another usage state diagram of a preferred embodiment of the present invention.

Fig. 6 is another usage state diagram of a preferred embodiment of the present invention.

Fig. 7 is a side view of another preferred embodiment of the present invention installed on a table saw.

Detailed ways

Please refer to Fig. 3 first, which is a table saw machine 10 applied to the stop structure 20 of the present invention. 14 and a cover 15.

The base 11 has a table 112 for placing a workpiece to be processed; the saw blade 12 is arranged inside the base 11 through an adjustable lifting mechanism, and can move up and down relative to the table 112; the driving motor provides the rotation of the saw blade 12 The required power; the riving knife 14 is connected with the saw blade 12 through a connecting assembly (not shown) and is located in front of the saw blade 12, and can move up and down synchronously with the saw blade 12; the protective cover 15 utilizes a quick release structure 16 It is connected to the splitter 14 in a detachable manner, and the protective cover 15 can be pivoted.

The above-mentioned components belong to common technology, and are only briefly described here, and the quick release structure 16 adopts the structure of the applicant's application number 95144266, so no more details are given here.

Please refer to FIG. 2 , the blocking structure 20 provided by the present invention includes a supporting arm 30 , a blocking element 40 and an elastic element 50 which is a torsion spring.

The front end 30a of the support arm 30 is connected to the protective cover 15 and the riving knife 14 through the quick release structure 16, and the support arm 30 is supported by the quick release structure 16 and maintained above the top edge of the saw blade 12 and is parallel to the table surface 112. It is noted that when the cover 15 pivots, it will not affect the swing of the support arm 30 , and the rear end 30 b of the support arm 30 has a through hole 32 .

The front end of the stopper 40 has a pivot hole 42 and a contact surface 43, and the stopper 40 uses a plug 44 to pass through the through hole 32 and the pivot hole 42 of the support arm 30, so that the stopper 40 is pivotally mounted on the support at the rear end 30b of the arm 30. The rear end of the stop member 40 has a stop surface 46. When the saw blade 12 is raised to be able to cut, the elastic member 50 pre-set on the plug 44 provides a bias force to pivot. The rear stopper 40 can return to its original position. As shown in Figure 3, the stopper 40 subjected to the bias is rotated outwards counterclockwise until its abutment surface 43 touches the inner surface of the support arm 30. The straight line extension direction of the stop surface 46 is approximately perpendicular to the table 112 of the base 11, and the distance from the bottom edge of the stop surface 46 to the table 112 of the base 11 is L1, and the top edge of the saw blade 12 to the base The distance between the table top 112 of 11 is L2. It must be emphasized that the technical feature of the present invention is that L1 is slightly greater than or equal to L2. When L1 is greater than L2, the height difference between them is maintained within 10mm. It can ensure that the sawn workpiece can be separated only by applying a slight external force. Of course, the smaller the height difference between L1 and L2, the better.

As shown in FIG. 4 , through the setting of the above-mentioned stop structure 20, when the worker takes the workpiece W without notice, the thickness of the workpiece W is too thick and may exceed the preset cutting height of the saw blade 12 (that is, L2), the workpiece W will It will be blocked by the stop surface 46 of the stop member 40 and cannot pass through. Therefore, the shortcoming that only the lower part of the workpiece is cut and cannot be completely separated by cutting must be prevented, and the workpiece must be replaced in time. Conversely, if a fixed workpiece thickness is selected for sawing processing, the stop member 40 of the stop structure 20 has the effect of helping the worker know whether the height of the saw blade 12 is appropriate before sawing the workpiece.

Figure 5 reveals that the saw blade 12 is indirectly controlled by the handle 17 and descends, and the riving knife 14 also moves downwards thereupon. At this time, the support arm 30 remains in the state parallel to the table surface 112 and moves down along with the riving knife 14, so that the stop Part 40 must be applicable to the workpiece W' of thinner thickness and use.

FIG. 6 shows that when the saw blade 12 is completely housed inside the base 11, the support arm 30 is completely flat against the table surface 112, and the stopper 40 is pressed to pivot, thus reducing the fatigue of the table saw 10 when it is not in use. Volume.

FIG. 7 is a schematic diagram of the stop structure 70 provided by another preferred embodiment of the present invention installed on the table saw machine 10. In this embodiment, the stop member 72 is integrally fixed on the back of the support arm 74. End, can reach the purpose of the utility model equally.

Therefore, the utility model can allow the applied table saw machine to saw the workpiece smoothly, so as to save the time for adjusting the height of the saw blade and increase the convenience of use.

Claims (10)

1. A stop structure for a table saw machine, the table saw machine includes a base with a table top, a saw blade that can be operated to rise or fall relative to the table top, and a saw blade that can go up and down along with the saw blade Displacement riving knife characterized by: The blocking structure includes: a support arm, the front end of which is provided on the riving knife; and A stopper, located at the rear end of the support arm, the stopper has a stopper surface, the distance from the bottom edge of the stopper surface to the base table is greater than or equal to the distance from the top edge of the saw blade to the base The distance from the table top. 2 . The blocking structure for a table saw as claimed in claim 1 , wherein the blocking member is pivotally mounted on the rear end of the supporting arm. 3 . 3 . The blocking structure for a table saw machine as claimed in claim 2 , further comprising an elastic element disposed on the blocking element. 4 . 4 . The blocking structure for a table saw as claimed in claim 1 , wherein the blocking member is fixed at the rear end of the supporting arm. 5. The stop structure for a table saw as claimed in claim 1, wherein the distance from the bottom edge of the stop surface to the base table is the same as the distance from the top edge of the saw blade to the base table The height difference is within 10mm. 6. A table saw machine, characterized in that it comprises: a base with a top; a saw blade located inside the base and operable to be raised or lowered relative to the table; a riving knife positioned in front of the saw blade and raised or lowered with the saw blade; and A stop structure is combined with the riving knife and rises or falls together with the riving knife, the stop structure has a stop surface, the stop surface is located behind the saw blade, and the bottom edge of the stop surface The distance from the table top of the base is greater than or equal to the distance from the top edge of the saw blade to the table top of the base. 7. The table saw machine according to claim 6, wherein the stop structure comprises a support arm and a stop member, the support arm is located above the top edge of the saw blade, and the front end of the support arm is set on the split knife, and the rear end is connected with the stopper, and the stopper has the stopper surface. 8. The table saw machine according to claim 7, characterized in that it comprises a quick release structure, the quick release structure is detachably connected to the top of the splitter, and the front end of the support arm is connected with the quick release structure. 9 . The table saw machine as claimed in claim 7 , wherein the support arm and the stopper are integrally formed. 10. The table saw machine according to claim 6, wherein the height difference between the distance from the bottom edge of the stop surface to the base table and the distance from the top edge of the saw blade to the base table is within 10 mm .

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