TWI727626B - Auxiliary supporting stand for table saw - Google Patents

Abstract

An auxiliary supporting stand for table saw includes a table saw which has a worktable and an extension assembly. The worktable has two opposing lateral sides, two fixed rails respectively mounted on each lateral side. The extension assembly has two movable rails respectively mounted on the two fixed rails and an extension worktable engaged to the two movable rails. The auxiliary supporting stand has two mounting seats and two supporting legs. Each mounting seat is correspondingly mounted to a bottom of the movable rails. Each supporting leg is pivotally mounted to the corresponding mounting seat. When the supporting legs are configured in an extended configuration, the supporting legs are upright positioned on the ground for providing support to the extension assembly. When the supporting legs are retracted, the supporting legs are positioned against a bottom surface of the movable rails for space saving purpose.

Description

Auxiliary support frame for table saw

The invention relates to a table saw machine, and particularly refers to an auxiliary support frame for a table saw machine.

For traditional table saws, in order to respond to different sizes of workpieces, an extension frame is usually set at one end of the working platform. After the extension frame is pulled out, the operator can use the extension frame to help the working platform provide support for large-size workpieces. . However, after the extension frame is pulled out, the underside of the extension frame presents a suspended condition that lacks support, so it is easy to shake when sawing large-size workpieces. It may even be that the weight of the large-size workpiece is too heavy, causing the extension frame to sag. This is bound to seriously affect the processing stability and processing accuracy.

The main purpose of the present invention is to provide an auxiliary support frame for a table saw machine, which can provide auxiliary support effects for large-sized workpieces, so as to improve processing stability and improve processing accuracy.

In order to achieve the above-mentioned main purpose, the auxiliary support frame of the present invention includes two fixing seats and two supporting feet. Each of the fixed bases is arranged on the bottom surface of a movable guide rail of the table saw; each of the supporting feet is pivoted on a fixed base with its top end, so that the two supporting feet can move between an unfolded position and a folded position When the two supporting feet are in the unfolded position, the bottom ends of the two supporting feet are supported on the ground. At this time, an extension frame of the table saw machine can provide auxiliary support for large-sized workpieces. When the two supporting feet When in the folded position, the two supporting feet abut against the bottom surface of the two movable guide rails to save space.

Preferably, each of the fixing bases has an arc groove, the arc groove has a first large diameter end, a second large diameter end, and a small diameter section connecting the first and second large diameter ends, and each of the supports The top of the foot has a positioning hole. The auxiliary support frame further has two positioning pins, each positioning pin has a pin body passing through the positioning hole, and the pin body has a first body and a second body connected to the first body, The outer diameter of the first body of the pin body is smaller than the groove diameter of the small diameter section of the arc groove, and the outer diameter of the second body of the pin body is greater than the groove diameter of the small diameter section of the arc groove and smaller than the groove diameter of the arc groove The groove diameter of the first and second major diameter ends. Thereby, when the first body part of the pin body is located in the small diameter section of the arc groove, the supporting leg can move between the unfolded position and the folded position, and when the second body part of the pin body is located in the When the first large-diameter end of the arc groove, the supporting foot is positioned at the folded position, and when the second body of the pin body is at the second large-diameter end of the arc groove, the supporting foot is positioned at the unfolded position.

Preferably, the pin body of each positioning pin further has a third body connected to the second body, the third body is sheathed with a reset elastic piece, and the reset elastic piece offsets the first body of the pin with one end of the reset elastic piece. The two body parts are used to provide resetting force to the positioning pin. In addition, the pin body of each positioning pin is sleeved with a bush for accommodating the reset elastic member, one end of the bush has an end wall, and the end wall receives the other end of the reset elastic member.

Preferably, the bottom surface of each movable guide rail is provided with an elastic clip, and when the two supporting legs are in the folded position, they are respectively clamped by an elastic clip to maintain the positioning.

The detailed structure, characteristics, assembling or use of the auxiliary support frame for the table saw provided by the present invention will be described in the detailed description of the subsequent embodiments. However, those with ordinary knowledge in the field of the present invention should be able to understand that the detailed description and the specific embodiments listed for implementing the present invention are only used to illustrate the present invention, and are not intended to limit the scope of the patent application of the present invention.

The applicant first explains here that throughout the specification, including the embodiments described below and the claims in the scope of the patent application, the nouns related to directionality are based on the directions in the drawings. Secondly, in the following embodiments and drawings, the same element numbers represent the same or similar elements or their structural features.

Please refer to FIG. 1 first. The table saw machine 10 shown in FIG. 1 includes a working platform 12, two fixed guide rails 14 and an extension frame 16. Two fixed guide rails 14 are arranged on the two relatively long sides of the working platform 12, the extension frame 16 has two movable guide rails 18 and an extended platform 20, and the two movable guide rails 18 are arranged on the two fixed guide rails in a horizontally movable manner. 14. The extension platform 20 is connected to the two movable guide rails 18 and is located at one end of the work platform 12. When the extension frame 16 is pulled out, it can help the work platform 12 to support the workpiece together. Since the table saw machine 10 is a conventional technology and is not the focus of this case, other detailed structures and operating principles will not be repeated here.

Please continue to refer to FIGS. 1 and 2, the auxiliary support frame 30 of the present invention includes two fixing seats 40 and two supporting legs 50.

The fixing base 40 is fixed on the bottom surface of the free end of the movable guide rail 18 by welding.

The top ends of the supporting feet 50 are respectively pivoted to the fixing base 40 by a pivot 51, so that the supporting feet 50 can move between the folded position P1 as shown in FIG. 3 and the unfolded position P2 as shown in FIG. 6, When the supporting foot 50 is in the collapsed position P1, the supporting foot 50 abuts against the bottom surface of the movable rail 18, and when the supporting foot 50 is in the unfolding position P2, the bottom end of the supporting foot 50 is supported on the ground.

In order to provide a positioning effect for the supporting feet 50, each fixing seat 40 has a first side wall 41 and a second side wall 42, which respectively have an arc groove 43. As shown in FIG. 2, the arc groove 43 has a first large diameter. End 44, a second large-diameter end 45, and a small-diameter section 46 connecting the first large-diameter end 44 and the second large-diameter end 45. As for the top end of each supporting leg 50, it is located on the first and second side walls of the fixing seat 40 There are two positioning holes 52 facing each other and communicating with the arc groove 43 between 41 and 42. In addition, the present invention further provides two positioning assemblies 60. As shown in FIG. 2, each positioning assembly 60 has a positioning pin 61, and the positioning pin 61 has a pin head 62 and a pin body 63, as shown in FIGS. 2 and 4 , The pin body 63 has a first body portion 64 connected to the pin head 62, a second body portion 65 connected to the first body portion 64, and a third body portion 66 connected to the second body portion 65, of which the first body The outer diameter of the portion 64 is smaller than the small diameter section 46 of the arc groove 43, and the outer diameter of the second body portion 65 is larger than the small diameter section 46 of the arc groove 43 but smaller than the first and second large diameter ends 44 of the arc groove 43 , 45. As shown in FIGS. 2 and 4, the pin 62 is located outside the fixing seat 40 and adjacent to the first side wall 41, and the pin body 63 passes through the arc groove 43 of the first side wall 41 to the left and right positions of the support foot 50. In the hole 52, it then protrudes out of the fixing seat 40 through the arc groove 43 of the second side wall 42; furthermore, when the first body portion 64 of the pin body 63 is located in the small diameter section 46 of the arc groove 43, the positioning pin 61 can move along the small diameter section 46 of the arc groove 43. At this time, the supporting leg 50 can move between the folded position P1 and the unfolded position P2. When the second body 65 of the pin body 63 is located at the first part of the arc groove 43 When the large-diameter end 44, as shown in Figure 4, the outer diameter of the second body 65 of the pin body 63 is greater than the groove diameter of the small-diameter section 46 of the arc groove 43, so that the positioning pin 61 cannot follow the arc groove 43. The small-diameter section 46 moves, when the second body 65 of the pin body 63 is located at the second large-diameter end 45 of the arc groove 43, as shown in FIG. 8, because the outer diameter of the second body 65 of the pin body 63 is larger than that of the arc The groove diameter of the small diameter section 46 of the groove 43 prevents the positioning pin 61 from moving along the small diameter section 46 of the arc groove 43, and the third body 66 of the pin body 63 protrudes through the arc groove 43 of the second side wall 42 Out of the fixed seat 40, a nut 67 and a buckle 68 abutting against the nut 67 are provided at its end.

In addition, as shown in FIGS. 2 and 4, each positioning component 60 further has a bushing 69 which is provided between the positioning hole 52 of the supporting foot 50 and the pin body 63 of the positioning pin 61 to reduce the number of positioning pins. 61. The bushing 69 has a convex ring 70 at one end and abuts against the first side wall 41 by the convex ring 70. The other end of the bushing 69 has an end wall 71, and the bush 69 abuts against the end wall 71 on the one hand. On the second side wall 42, on the other hand, the end wall 71 blocks the nut 67 to prevent the positioning pin 61 from falling off. Each positioning assembly 60 further has a reset elastic member 72 (here, a compression spring is taken as an example). The reset elastic member 72 is sleeved on the third body 66 of the pin body 63 of the positioning pin 61, and one end of the reset elastic member 72 abuts against On the second body 65 of the pin body 63 of the positioning pin 61, the other end of the reset elastic member 72 abuts against the end wall 71 of the bushing 69 to provide elastic force to push the positioning pin 61 toward the first side wall 41 .

It can be seen from the above that when the support foot 50 is to be unfolded, first press the pin head 62 of the positioning pin 61 to make the second body 65 of the pin body 63 of the positioning pin 61 retract into the positioning hole 52, as shown in Figure 5 , On the one hand, the second body 65 of the pin body 63 is used to compress the reset elastic member 72 to accumulate the reset force of the reset elastic member 72, and on the other hand, the first body 64 of the pin body 63 is located at the first largest of the arc groove 43 In the diameter end 44, since the first body portion 64 of the pin body 63 has a smaller outer diameter relative to the small diameter section 46 of the arc groove 43, the positioning pin 61 can follow the first large diameter end 44 of the arc groove 43 The small diameter section 46 of the arc groove 43 moves down to the second large diameter end 45 of the arc groove 43. At this time, the supporting foot 50 will follow the positioning pin 61 to move from the folded position P1 as shown in FIG. 3 to FIG. 6 As shown in the expanded position P2, until the positioning pin 61 reaches the second large-diameter end 45 of the arc groove 43, the pressing force applied to the positioning pin 61 is released. At this time, by the elastic force of the reset elastic member 72, the pin body 63 The second body 65 will be located in the second large-diameter end 45 of the arc groove 43, as shown in FIG. 8, because the second body 65 of the pin body 63 has a larger outer diameter relative to the small-diameter section 46 of the arc groove 43 The diameter prevents the positioning pin 61 from moving along the small diameter section 46 of the arc groove 43. Thereby, the supporting foot 50 can be maintained at the deployed position P2 as shown in FIG. 7.

Conversely, when the support foot 50 is to be folded, the pin head 62 of the positioning pin 61 is firstly pressed, as shown in FIG. 9, on the one hand, the second body 65 of the pin body 63 is used to compress and reset the elastic member 72 to It accumulates the resetting force of the reset elastic member 72, and on the other hand, the first body 64 of the pin body 63 is located in the second large-diameter end 45 of the arc groove 43, because the first body 64 of the pin body 63 is relative to the arc groove 43 The small diameter section 46 has a small outer diameter, so that the positioning pin 61 can move upward from the second large diameter end 45 of the arc groove 43 along the small diameter section 46 of the arc groove 43 to the first large diameter of the arc groove 43 End 44, the supporting foot 50 at this time will follow the positioning pin 61 from the unfolded position P2 shown in Figure 6 to the folded position P1 shown in Figure 3 until the positioning pin 61 reaches the first major diameter of the arc groove 43 After the end 44 is released, the pressing force applied to the positioning pin 61 is released. At this time, by the elastic force of the reset elastic member 72, the second body 65 of the pin body 63 will be located in the first large-diameter end 44 of the arc groove 43, such as As shown in FIG. 4, because the second body portion 65 of the pin body 63 has a larger outer diameter relative to the small diameter section 46 of the arc groove 43, the positioning pin 61 cannot move along the small diameter section 46 of the arc groove 43. Thereby, the supporting leg 50 can be maintained at the folded position P1 as shown in FIG. 1.

In addition, in order to further ensure that the support foot 50 will not sag due to its own weight when the support foot 50 is in the folded position P1, each positioning assembly 60 further provides an elastic clip 73, which uses a fixing member such as a screw (not shown in the figure). Show) The lock is set on the bottom surface of the movable guide rail 18, as shown in Figures 1 to 3, when the supporting foot 50 is in the folded position P1, the supporting foot 50 is clamped by the elastic clip 73 so that the supporting foot 50 is close to The bottom surface of the movable guide rail 18 saves space. When the support foot 50 is to be deployed, the support foot 50 can be deployed by overcoming the clamping force of the elastic clip 73 on the support foot 50 after pressing the positioning pin 61.

In summary, the auxiliary support frame 30 of the present invention uses two support legs 50 to help the extension platform 20 provide support for large-size workpieces. In addition, through the cooperation of the positioning pin 61, the reset elastic member 72 and the elastic clip 73, The support foot 50 can be quickly positioned no matter when it is unfolded or folded and has good structural stability, thereby achieving the purpose of improving processing stability and processing accuracy.

10: Table saw machine 12: Work platform 14: fixed rail 16: Extension frame 18: movable rail 20: Extension platform 30: Auxiliary support frame 40: fixed seat 41: first side wall 42: second side wall 43: arc groove 44: The first major diameter end 45: The second largest diameter end 46: Trail section 50: Support feet 51: pivot 52: positioning hole P1: Folding position P2: Expanded position 60: Positioning components 61: positioning pin 62: Pin 63: Slim 64: The first body 65: The second body 66: The Third Body 67: Nut 68: Buckle 69: Bush 70: Convex ring 71: End Wall 72: reset elastic piece 73: elastic clip

Fig. 1 is a perspective view of a table saw machine using the auxiliary support frame of the present invention, wherein the support feet are located in the folded position. Figure 2 is an exploded perspective view of the auxiliary support frame of the present invention. Fig. 3 is a partial plan view of the auxiliary support frame of the present invention, which mainly shows that the second body of the pin body is located at the first large-diameter end of the arc groove. Figure 4 is a cross-sectional view of Figure 3 along line 4-4. Fig. 5 is similar to Fig. 4 and mainly shows the state after the positioning pin is pressed. Fig. 6 is similar to Fig. 3, and mainly shows that the second body of the pin body is located at the second large-diameter end of the arc groove. Fig. 7 is similar to Fig. 1, and mainly shows that the supporting foot is in the unfolded position. Figure 8 is a cross-sectional view of Figure 6 along line 8-8. Fig. 9 is similar to Fig. 8 and mainly shows the state after the positioning pin is pressed.

18: movable rail

40: fixed seat

41: first side wall

42: second side wall

43: arc groove

44: The first major diameter end

45: The second largest diameter end

46: Trail section

50: Support feet

51: pivot

52: positioning hole

60: Positioning components

61: positioning pin

62: Pin

63: Slim

64: The first body

65: The second body

66: The Third Body

67: Nut

68: Buckle

69: Bush

70: Convex ring

72: reset elastic piece

73: elastic clip

Claims (5)

An auxiliary support frame for a table saw machine. The table saw machine includes a working platform, two fixed rails and an extension frame. The two fixed rails are arranged on two opposite sides of the working platform. The extension frame has two movable rails. With an extension platform, the two movable guide rails are horizontally displaceable and arranged on the two fixed guide rails, the extension platform is connected to the two movable guide rails and is located at one end of the working platform, and the auxiliary support frame includes: Two fixing seats are respectively fixed on the bottom surface of a free end of the movable guide rail; and Two supporting feet are pivoted on a fixed seat with their top ends respectively, so that the two supporting feet can move between an unfolded position and a folded position. When the two supporting feet are in the unfolded position, the two supporting feet The bottom end is supported on the ground. When the two supporting feet are in the folded position, the two supporting feet abut against the bottom surface of the two movable guide rails. The auxiliary support frame for a table saw according to claim 1, wherein each of the fixing bases has an arc groove, the arc groove has a first large diameter end, a second large diameter end, and a second large diameter end. The small diameter section of the large diameter end and the second large diameter end has a positioning hole at the top end of each supporting leg; the auxiliary support frame further includes two positioning pins, each positioning pin having a pin head and a pin body , The pin body is inserted in the positioning hole of the supporting leg and has a first body part connected to the pin head and a second body part connected to the first body part. The outer diameter is smaller than the groove diameter of the small-diameter section of the arc groove. When the first body of the pin body is located in the small-diameter section of the arc groove, the supporting leg moves between the unfolded position and the collapsed position. The outer diameter of the second body of the pin body is greater than the groove diameter of the small diameter section of the arc groove and smaller than the groove diameter of the first and second large diameter ends of the arc groove, when the second body of the pin body is located in the arc When the first large-diameter end of the groove, the supporting foot is positioned at the collapsed position, and when the second body of the pin body is positioned at the second large-diameter end of the arc groove, the supporting foot is positioned at the unfolded position. The auxiliary support frame for a table saw machine according to claim 2, wherein the pin body of each positioning pin has a third body part connected to the second body part, and the auxiliary support frame further has two reset elasticities Each of the reset elastic pieces is sleeved on the third body of the pin body of a positioning pin and abuts against the second body of the pin body of the positioning pin with one end thereof. The auxiliary support frame for a table saw machine according to claim 3, wherein the pin body of each positioning pin is sleeved with a bush for accommodating the reset elastic member, one end of the bush has an end wall, and the end wall Accept the other end of the reset elastic piece. The auxiliary support frame for a table saw machine according to any one of claims 1 to 4, which further includes two elastic clips, the two elastic clips are respectively arranged on the bottom surface of the movable guide rail, when the two When the supporting feet are located in the folded position, the two supporting feet are respectively clamped and positioned by an elastic clip.

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