TWI393617B - A folding stand - Google Patents

Description

Stage with tripod

The present invention relates to a support carrier, and more particularly to a stage having a foldable stand.

In general, small processing tools (such as table saws), in order to provide convenience for the movement of the implements, most of the tripods of the carrying implements are provided with a folding design to facilitate the movement and use between different working places.

For example, U.S. Patent Nos. 6,942,229 and 5,560, 582 each provide a tripod for the aforementioned functions. In addition, the patent application of the invention patent I 311520 "supporting frame for implements" approved by the applicant includes a carrying platform and a pair of pivoting platforms thereon. a first leg on one side, a pair of second legs pivotally connected to the other side of the carrying platform and pivotally connected to the first legs, and a pair of elastic members sleeved on the second legs And a fixing device having a handle slidably disposed on the carrying platform, a second connecting rod pivotally connected to the handle, and a first connection pivotally connected to the second connecting rod The rod and the second sleeve are respectively disposed between the first connecting rod and the carrying platform, and when the supporting frame is pulled in the unfolded state, the second connecting rod can be driven to pivot. The second link can be linked to the first link to be relatively close in a straight line direction, and the ends of the first links can be detached from the two positioning holes of the second leg, thereby causing the first link The two legs can slide along a pair of sliding sleeves respectively, so that the supporting frame can be closed Purpose.

The above-mentioned support frame can be used for the bearing of the implement, and can achieve the desired folding and unfolding purposes. The applicant has finally developed and produced the present invention in order to provide another more convenient and quick operation mode.

Accordingly, it is an object of the present invention to provide a stage having a foldable stand that can be easily handled and folded and deployed.

Therefore, the present invention has a loading platform for folding the tripod, and includes a bearing frame member, an operating unit, a first tripod and a second tripod. The carrier frame has a first side portion and a second side portion opposite the first side portion. The operating unit has a pair of pivot portions pivotally connected to the first side portion, a handle portion opposite to the pivot portions, a pair of guide grooves between the axial pivot portion and the handle portion, and An operating rod disposed in the guide grooves. The first tripod has a pair of first pivoting portions pivotally connected to the operating unit, a pair of positioning members disposed on one side of the first pivoting portions, and a first opposite to the first pivoting portions. And a first pivoting portion disposed between the first pivoting portion and the first end portion, the positioning members each having a positioning groove for the operating rod to pass through. The second leg has a pair of second pivoting portions pivotally connected to the second side portion, a second end portion opposite to the second pivoting portions, and a pair of second pivoting portions disposed at the second pivoting portion a second pivoting portion between the second pivoting portion and the first pivoting portion being pivotally connected to each other, the first tripod being unfolded relative to the operating unit, the first The two end portions are away from the bearing frame member. When the first tripod is folded relative to the operating unit, the first and second end portions are closer to the bearing frame member.

The effect of the present invention is that when the carrying frame member is lifted and the operating lever is slid relative to the guiding slots and the positioning slots, the bearing frame member, the operating unit and the first and the second legs are relatively Pivoting, and achieving the purpose of folding, when the lifting frame member can be easily deployed.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

As shown in FIG. 1 and FIG. 2, the present invention has a carrier for a folding stand, comprising a carrier frame member 10, an operating unit 20, a first leg frame 30, and a second leg stand. 40 and a locking unit 50.

The carrier frame member 10 has a rectangular frame shape and can be fixedly mounted to the small processing tool, and has a first side portion 11 , a second side portion 12 opposite to the first side portion 11 , and a first side portion The handle 13 of the part 11.

Referring to FIG. 3 and FIG. 4, the operating unit 20 has a U-shaped main lever member 21, an operating lever 22, and a limit group for positioning the operating lever 22. In fact, the limiting group is a The elastic member 23 is attached to the operating lever 22. The main lever member 21 has two side bars 24 and a handle portion 25 that is coupled between the side bars 24. Each of the side bars 24 has a pivotal connection on both sides of the first side portion 11 and the handle portion. An oppositely disposed shaft pivot portion 241 and a pair of guide grooves 242 interposed between the equal shaft pivot portion 241 and the handle portion 25, the isometric pivot portion 241 being disposed at an end of the side rod 24 of the main rod member 21. The guide grooves 242 each have a pair of first end portions 243 that are equiaxed pivot portions 241 and a second end portion 244 that is opposite to the first end portions 243. The operating rods 22 are disposed in the guiding grooves 242. The elastic members 23 are tension springs and are mounted inside the side rods 24, and opposite ends are respectively engaged with the shaft pivots 241 and the operating rods. At 22, its spring force constantly keeps the operating lever 22 moving toward the first end portion 243.

The first leg frame 30 has a U-shaped frame shape and has a pair of first pivoting portions 31 pivotally connected to the operating unit 20 and a pair of positioning members 32 disposed on one side of the first pivoting portions 31. a first end portion 33 opposite to the first pivoting portion 31, a pair of rollers 34 and a pair of shafts disposed on opposite sides of the first end portion 33, and a pair of the first pivoting portions 31 and the pair The first pivoting portion 35 between the first end portions 33. The first pivoting portions 31 are pivotally disposed on the side bars 24 and located between the guide grooves 242 and the handle portion 25. Each of the positioning members 32 has a positioning slot 321 for the operating rod 22 to be disposed. The positioning slot 321 has a straight section 322, a side of the straight section 322, and the first pivoting The portion 31 is a circular arc segment 323 of a center of rotation and a clamping portion 324 that is coupled to one side of the arc segment 323 and opposite to the straight portion 322.

The second leg frame 40 has a U-shaped frame shape and has a pair of second pivoting portions 41 pivotally connected to the second side portion 12 and a second end portion opposite to the second pivoting portions 41. 42. A pair of second pivoting portions 43 disposed between the second pivoting portion 41 and the second distal end portion 42 and a pair of baffles 44 fixed to one side of the second pivoting portions 43 The second pivoting portion 43 and the first pivoting portion 35 are pivotally connected to each other, and the baffles 44 are L-shaped.

The latch unit 50 has a pair of latches 51 fixed to the second stand 40 and a pair of latching plates 52 pivotally mounted on the first stand 30. The latching pins 51 are located on the side of the second pivoting portion 43. Each of the latching plates 52 has a pivot pin 521 pivoted on one side of the first pivoting portion 35, and an opposite to the pivot pin 521. A button hole 522 is provided for locking with respect to the corresponding hook pin 51 and a pulling portion 523 disposed on a side of the button hole 522.

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , when the first tripod 30 is unfolded relative to the operating unit 20 , the first and the tripods 30 and 40 intersect in an X shape. The two end portions 33 and 42 are away from the bearing frame member 10, and the carrier frame member 10, the operating unit 20, the first leg frame 30 and the second leg frame 40 form a four-link structure. The operating unit 20 is located below the carrier frame member 10. At this time, the operating lever 22 is located in the straight section 322 of the positioning slots 321 , and the operating lever 22 is held against the first end of the guiding slots 242 by the elastic force of the elastic members 23 . The portion 243, the main rod 21 can be maintained in a fixed state with a large angle with the first leg frame 30, and the second leg frame 40 can cooperate with the frame member 10 to achieve the stand support. purpose. And the button holes 522 of the gussets 52 are engaged with the shackles 51, and the baffles 44 abut against the bottom edge of the first leg frame 30, thereby ensuring that the gantry is entirely positioned. The structure of the stand-up state is stable.

And in the unfolded state of FIG. 1 and FIG. 2, if the stage is to be moved, the operator only needs to lift the handle 13 or lift the handle portion 25 of the operating unit 20, and the second end portion 42 is immediately separated. The ground can be easily dragged by the rollers 34.

As shown in FIG. 5 and with reference to FIG. 2, when the user wants to fold, the operator stands up to the first side portion 11 of the carrier frame member 10, and the gussets 52 are first cocked upwards, so that the buckles are fastened. The hole 522 is disengaged from the bayonet 51, and after the carrier frame member 10 is lifted up, the handle portion 25 of the operating unit 20 and the operating lever 22 are held by hand, and the operating lever 22 is biased. When the handle portion 25 is pulled, the operating rod 22 is moved by the first end portion 243 of the guide groove 242 to the second end portion 244 (at this time, the elastic members 23 are stretched to contain the rebound elastic force). ).

Then, the operator then pulls the handle portion 25 toward the bearing frame member 10. The main lever member 21 is pivoted with the equiaxed pivot portion 241, and the first stand 30 is also opposite to the operating unit. 20 is pivoted, the operating rod 22 can be guided by the straight sections 322 into the arc segments 323, and when the operator releases the pressing force on the operating rod 22, the operating rod 22 also slides to When the clamping section 324 is used, the operating lever 22 can be guided by the arc segments 323 into the clamping sections 324 by using the resilience elastic force of the elastic members 23 (see FIG. 7), and the operating lever 22 The second leg portion 244 is also moved to the second end portion 244 of the guiding groove 242, so that when the first leg frame 30 is folded at a small angle with respect to the operating unit 20, the second leg frame 40 is also opposite to the first The tripod 30 is folded into a smaller angle so that the first and second end portions 33, 42 approach the carrier frame member 10, and the first leg frame 30 is opposite to the operation as shown in FIGS. 6 and 8. The unit 20 is folded and positioned. In the folded state, the operating unit 20 is provided with one end of the handle portion 25 being outwardly moved to the outer side of the first side portion 11 of the bearing frame member 10 in the horizontal direction. Volume of the entire stage becomes smaller, saving storage space.

When the operator is to operate the state of FIG. 6 into the unfolded state of FIG. 2, the operator directly lifts the handle 13, and the first tripod 30 is pivoted relative to the operating unit 20 by its own weight, the operating unit 20 The pivoting of the first frame 30 can also be performed relative to the bearing frame member 10. When the first stand 30 is pivoted relative to the operating unit 20, the operating lever 22 is caused by the locking segments 324. Moving out to the arc segments 323 until the operating lever 22 corresponds to the straight segments 322, using the resilience of the elastic members 23, the first and second legs 30, 40 can be Relatively unfolding and providing the bearing frame member 10 at the use height, the operator then inserts the gussets 52 toward the bayonet pins 51 to return to the state of FIGS. 2 and 4.

Therefore, the structure of the invention is simple, and the folding and unfolding can be completed with a simple operation, and the operation is quite convenient and fast.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

10. . . Carrier frame

11. . . First side

12. . . Second side

13. . . Handle

20. . . Operating unit

twenty one. . . Main rod

twenty two. . . Joystick

twenty three. . . Elastic part

twenty four. . . Side bar

241. . . Shaft pivot

242. . . Guide slot

243. . . First end

244. . . Second end

25. . . Handle

30. . . First tripod

31. . . First pivot

32. . . Positioning member

321. . . Positioning slot

322. . . Straight section

323. . . Arc segment

324. . . Card segment

33. . . First end

34. . . Wheel

35. . . First pivot

40. . . Second tripod

41. . . Second pivot

42. . . Second end

43. . . Second pivoting

44. . . Baffle

50. . . Locking unit

51. . . Bayonet

52. . . Buckle plate

521. . . Shaft pin

522. . . Buckle hole

523. . . Trigger

Figure 1 is a perspective exploded view showing a preferred embodiment of the present invention having a folding stand;

Figure 2 is a front elevational plan view showing one of the above preferred embodiments of the present invention;

Figure 3 is a side elevational plan view showing one of the above preferred embodiments of the present invention;

Figure 4 is a partial enlarged view of Figure 2;

Figure 5 is a schematic view of the operation of the above preferred embodiment of the present invention, illustrating a lever to a handle portion, the lever will be moved from a first end of a guide slot to a second end;

Figure 6 is a plan view showing the completion of one of the above preferred embodiments of the present invention;

Figure 7 is a partial enlarged view of Figure 6; and

Figure 8 is a perspective view showing the completion of one of the above preferred embodiments of the present invention.

10. . . Carrier frame

11. . . First side

12. . . Second side

13. . . Handle

20. . . Operating unit

twenty one. . . Main rod

twenty two. . . Joystick

twenty four. . . Side bar

241. . . Shaft pivot

242. . . Guide slot

25. . . Handle

30. . . First tripod

31. . . First pivot

32. . . Positioning member

321. . . Positioning slot

33. . . First end

34. . . Wheel

35. . . First pivot

40. . . Second tripod

41. . . Second pivot

42. . . Second end

43. . . Second pivoting

44. . . Baffle

50. . . Locking unit

52. . . Buckle plate

Claims (10)

A loading platform having a folding frame comprises: a carrier frame member having a first side portion and a second side portion opposite to the first side portion; an operating unit having a pair of pivoting members a shaft pivot portion of the first side portion, a handle portion opposite to the shaft pivot portion, a pair of guide grooves interposed between the shaft pivot portion and the handle portion, and a guide hole disposed in the guide groove a first tripod having a pair of first pivoting portions pivotally connected to the operating unit, a pair of positioning members disposed on one side of the first pivoting portions, and a first pivoting connection with the first pivoting portion a first end portion opposite to the first end portion and a pair of first pivoting portions disposed between the first pivoting portion and the first end portion, the positioning members each having a positioning position for the operating rod And a second leg frame having a pair of second pivoting portions pivotally connected to the second side portion, a second end portion opposite to the second pivoting portions, and a pair of the second leg portions a second pivoting portion between the second pivoting portion and the second distal end portion, the second pivoting portion and the first pivoting portion are pivotally connected to each other, and the first tripod is unfolded relative to the operating unit The first and second end portions away from the supporting frame member, the first stand relative to the folding operation unit, the first and second end portion close to the supporting frame member. The loading platform with the folding stand according to claim 1, wherein the guiding grooves of the operating unit each have a pair of first end portions and a first end portion of the equiaxed pivot portion In the opposite second end, the operating unit also has a limit set for positioning the operating lever at the first end. The loading platform with the folding stand according to the second aspect of the patent application, wherein the limiting group of the operating unit is a pair of elastic members connected to the operating rod, and the elastic force of the elastic members is constant The operating rod maintains a tendency to move toward the first end. A loading platform having a folding stand according to claim 3, wherein the operating unit further has a U-shaped main rod member, the main rod member having two side rods, the handle portion being coupled to Between the side bars, and the equiaxed pivots are disposed at the ends of the main rods, the elastic members are mounted inside the side rods, and opposite ends are respectively implicated in the shaft pivots and the operating rod on. The loading platform with the folding stand according to the first aspect of the patent application, wherein the positioning grooves of the first stand have a straight section, one is connected to one side of the straight section, and The first pivoting portion is a circular arc segment of the center of rotation. When the first tripod is deployed relative to the operating unit, the operating lever is located in the straight portion, and the first tripod is received relative to the operating unit. When folded, the operating rod can be guided by the straight sections into the arc segments. The loading platform with the folding stand according to claim 5, wherein the positioning grooves of the first stand each have a side connected to the arc segment and the straight portion In the oppositely disposed clamping section, when the first tripod is positioned relative to the operating unit, the operating lever can be guided by the arc segments into the clamping sections. The loading platform with the folding stand according to any one of the preceding claims, further comprising a locking unit, the locking unit having a pair fixed on the first stand a latch of the one of the second legs and a pair of latches pivotally disposed on the other of the first stand and the second stand, each of the buckles having a corresponding one A latching hole of the latching pin and a triggering portion, wherein the latching holes of the latching plates are engaged with the latching pins when the first tripod is unfolded relative to the operating unit. A loading platform having a folding stand according to claim 7 , wherein the second leg further has a pair opposite to the pins and is fixed to the second pivoting portion A baffle on one side that abuts against the bottom edge of the first stand when the first stand is unfolded relative to the operating unit. The loading platform having the folding stand according to claim 1, wherein the carrying frame, the operating unit, the first stand and the second stand form a quadruple in an unfolded state a rod structure, and the operating unit is located below the carrier frame. The loading platform with a folding stand according to claim 9 , wherein, in the folded state, the operating unit is provided with one end of the handle portion moved outward to the first side of the bearing frame member The outer side in the horizontal direction.