TWI421431B - Collapsible stand - Google Patents

Description

Folding tripod

The invention relates to a support carrier, in particular to a folding tripod.

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.

The US Patent Publication No. US Pat. No. 6,942,229, US Pat. No. 5,560, 582, and U.S. Patent Application Publication No. US 2005/0199768 A1 respectively provide a tripod for the aforementioned functions, and in addition, the patent application of the invention patent I 311520 "supporting frame for implements" approved by the applicant, The utility model comprises a carrying platform, a pair of first legs pivoted on one side of the carrying platform, a pair of second legs pivotally arranged on the other side of the carrying platform and pivotally connected to the first legs, and a second leg An elastic member and a fixing device disposed on the second leg, the fixing device having a handle slidably disposed on the carrying platform, and a second connecting rod pivotally connected to the handle a first connecting rod and two pivotally connected to the second connecting rod respectively sleeve a spring between the first connecting rod and the carrying platform, when the supporting frame is pulled in the unfolded state, The second links can be driven to pivot, and the second links can be linked to the first links to produce a relative approach in a straight line direction, and the ends of the first links can be from the same The two positioning holes of the two legs are disengaged, so that the second legs can be divided Along a pair of sliding sleeve, so that the bracket can be folded to achieve the purpose.

The above support frame can be used for the carrying of the implement and can achieve the expected harvest. For the purpose of folding and unfolding, the applicant 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 folding stand that is simple in construction, easy to operate, and that can be quickly operated to stand or collapse.

Therefore, the folding stand of the present invention comprises a carrier, a first bracket member, a first supporting unit, a second bracket member and a second supporting unit. The carrier has a first side portion and a second side portion opposite to the first side portion, the first bracket member having a pair of first poles respectively pivoted on the first side of the carrier member and a chassis portion coupled to the first masts, each of the first masts having a main pole segment and a slider segment slidably sleeved with the corresponding main pole segment, the main mast segments Engaging with the chassis portion, the slider segments are pivotally connected to the first side portion, the first support unit is pivotally connected between the second side portion and the first frame rods, and the second bracket member has a pair of second rods respectively pivotally connected to the first racks, the second racks each having a terminal portion corresponding to the chassis portion, the second supporting unit being pivotally connected to the first side portion Between the second frame and the second frame member, wherein the second frame member is positioned relative to the first frame member, wherein the second frame member is opposite to the first frame member when the folding frame is in an extended state The first bracket member is unfolded, the second side portion of the carrier member is away from the first bracket member, the end portion is away from the chassis portion, and the second supporting unit can make the second portion The frame member is positioned relative to the first bracket member. When the folding tripod is in a folded state, the second bracket member is folded relative to the first bracket member, and the second side portion of the carrier member approaches In the first bracket member, the end portions approach the chassis portion.

The effect of the present invention is that, by operating the carrier, the second bracket member can be deployed relative to the first bracket member by using the linkage of the first and second supporting units, and the folding tripod is in an extended state. Or the first bracket member can be lifted, and the second bracket member is folded relative to the first bracket member, and the folding tripod is folded into a folded state, and the folding tripod can be reached. The purpose of rapid expansion and folding.

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, a preferred embodiment of the folding stand of the present invention comprises a carrier 10, a handle 20 mounted on the carrier 10, a first bracket member 30, and a first support. The unit 40, a second bracket member 50, a second supporting unit 60 and an operating unit 70.

The carrier member 10 has a rectangular frame shape for mounting and fixing a processing tool 100, and has a first side portion 11 and a second side portion 12 opposite to the first side portion 11, the first side portion 11 having A pair of first pivot ears 111 extending downwardly from the bottom surface, the second side portions 12 having a pair of second pivot ears 121 extending downwardly from the bottom surface.

The handle 20 is U-shaped and is fixed to the first side portion 11.

The first bracket member 30 has a pair of first masts 31 respectively pivotally connected to the first pivoting lugs 111, and a chassis portion 32 coupled to the first masts 31, respectively. a locking portion 33 between the rod 31 and the chassis portion 32, and a locking member 34 and a connecting portion respectively attached to the turning portion 33 a main rod segment 311 and a sliding rod portion 312 slidably sleeved with the corresponding main rod portion 311, a pair of pivot plates 313 disposed in the middle of the corresponding main portion 311, and a pivot plate 313 disposed on the pivot plate 313 The main rod section 311 is engaged with the turning part 33 and the bottom frame part 32, and the sliding rod sections 312 are pivotally connected to the first side part 11 respectively. Wait for the first pivot ear 111. The first rods 31 are disposed perpendicular to the chassis portion 32, and the turning portions 33 are curved.

The first supporting unit 40 has two first supporting rods 41 pivotally connected between the second side portion 12 and the main rod segments 311 of the first masts 31, and a shaft disposed on one of the first supporting rods 41. Guide wheel 42.

The second bracket member 50 has a pair of second levers 51 pivotally connected to the pivot plates 313 of the first masts 31, and a pair of rollers 52 respectively pivoted to the second masts 51 and a guiding rod 53 disposed on one of the rollers 52, the second rods 51 each having a pivoting portion 511 pivotally connected to the pivoting plate 313 and a corresponding to the chassis portion 32 for the rollers The end portion 512 of the 52 shaft is disposed, and the pivoting portion 511 of the second rod 51 can be positioned against the positioning portion 314.

The second supporting unit 60 has two second supporting rods 61 pivotally connected between the first pivoting ears 111 and the second bracket members 50 respectively.

The operating unit 70 is mounted on the first bracket member 30 and has a driving rod 71, a push rod 72 spaced apart from the driving rod 71 and pivoted on one of the first racks 31, and a pivoting member A link 73 between the drive rod 71 and the push rod 72 and a return spring 74. The drive rod 71 has a relative to the The first rod 31 is pivoted and pivoted on the pivoting portion 711 of the shaft 315 and a stepping portion 712 opposite to the pivoting portion 711. The push rod 72 has a first end portion 721, a The first end portion 721 is opposite to and corresponding to the second end portion 722 of the carrier member 10, and a second end portion 722 extends toward the first end portion 721 and corresponds to the tilting surface 723 of the guide wheel 42 and a a pulley 724 pivotally disposed at the first end portion 721, the link 73 having a first pivoting portion 731 pivotally connected between the pivoting portion 711 and the stepping portion 712 and a pivoting end at the first end The second pivoting portion 732 of the portion 721 is coupled between the tread portion 712 and the first end portion 721, and the elastic force thereof keeps the tread portion 712 and the second end portion 722 relatively close to each other. trend.

As shown in FIG. 2, when the folding tripod is in an extended state, the first bracket member 30 is inclined relative to the ground, and the second bracket member 50 is unfolded relative to the first bracket member 30. The carrier 10 is substantially parallel to the ground, and the second side portion 12 is away from the first bracket member 30. The end portion 512 of the second bracket member 50 is also away from the chassis portion 32. The abutting portion 511 of the second rod 51 is positioned at the positioning portion 314 to maintain the first bracket member 30 and the second bracket member 50 at an angle, and the first bracket member 30 The turning portion 33 corresponds to the ground and can be stably positioned on the ground by the locking members 34 to ensure that the structure of the folding stand as a whole in the extended state is stable.

And in the extended state of FIG. 1 and FIG. 2, if the folding stand is to be moved, the operator only needs to press the handle 20 slightly, and the locking members 34 are immediately off the ground, and the use of the same The roller 52 can easily drag the folding stand as a whole.

As shown in FIG. 3, FIG. 4 and FIG. 5, when the operator wants to fold, the operator lifts the handle 20 upwards, and the first bracket member 30 then swings with the turning portions 33 as a fulcrum, the second The bracket member 50 is gradually folded relative to the first bracket member 30, and the end portion 512 is gradually approached to the chassis portion 32, and the slider portion 312 can be used to generate a direction relative to the main lever segments 311. The effect of the indentation, and the second bracket member 50 affecting the second supporting unit 60, the second supporting unit 60 and the carrier member 10, and the carrier member 10 interlocking the first supporting unit 40, The second side portion 12 of the carrier member 10 gradually approaches the first bracket member 30 until the stand shown in FIGS. 4 and 5 is in a folded state, and the second side portion 12 of the carrier member 10 tends to Close to the first bracket member 30, the pivoting portions 511 of the second masts 51 are away from the positioning portions 314.

As shown in FIG. 4 and FIG. 5, at this time, the first bracket member 30 can be stably positioned on the ground by the chassis portion 32, and the first masts 31 are kept in an upright shape, and the carrier member 10 is tightly closed. Attached to the side of the first bracket member 30, the second bracket member 50 is also folded and attached to the other side of the first bracket member 30, and the overall size of the folding tripod is reduced, thereby saving storage space. .

As shown in FIG. 6 and FIG. 7, when the folding state of FIGS. 4 and 5 is to be operated in the expanded state of FIGS. 1 and 2, the operator can step on the stepping of the driving lever 71 of the operating unit 70. a portion 712, and the driving rod 71 is pivoted by the shaft 315 (the return spring 74 is stretched and has a rebound elastic force), and the stepping portion 712 can be pulled by the connecting rod 73. The pusher 72, and the tilting surface 723 of the pusher 72 sways the guide wheel 42 and the first supporting unit 40, and the second side portion 12 of the carrier 10 can be interlocked away from the The first bracket member 30 is simultaneously pivoted by the pulley 724 to pivot the second bracket member 50 outwardly relative to the first bracket member 30, and the carrier member is pulled by the first supporting unit 40. 10. The second supporting unit 60 is pulled by the carrier 10 and cooperates with the main rod segments 311 to form an outwardly extending action, and the operator applies a force to press the handle 20, Then, the first bracket member 30 can be gradually inclined until the unfolded state shown in FIGS. 1 and 2 is developed.

After the operator steps on the driving lever 71 of the operating unit 70, the return spring 74 rebounds, and the driving lever 71, the push rod 72 and the connecting rod 73 are returned to the state shown in FIGS. 4 and 5.

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

11‧‧‧ first side

111‧‧‧First pivot

12‧‧‧ second side

121‧‧‧Second pivot

20‧‧‧Hands

30‧‧‧First bracket

31‧‧‧First pole

311‧‧‧ main section

312‧‧‧Sliding section

313‧‧‧ pivot board

314‧‧‧ Positioning Department

315‧‧‧ shaft

32‧‧‧Underframe Department

33‧‧‧ Turning Department

34‧‧‧ card fixing

40‧‧‧First support unit

41‧‧‧First support rod

42‧‧‧guide wheel

50‧‧‧Second bracket parts

51‧‧‧Second pole

511‧‧‧Axis

512‧‧‧End

52‧‧‧Roller

53‧‧‧guides

60‧‧‧second support unit

61‧‧‧second support rod

70‧‧‧Operating unit

71‧‧‧ drive rod

711‧‧‧ pivoting department

712‧‧‧Treading

72‧‧‧Put

721‧‧‧ first end

722‧‧‧second end

723‧‧‧掣面面

724‧‧‧ pulley

73‧‧‧ linkage

731‧‧‧First Pivot

732‧‧‧Second Pivot

74‧‧‧Return spring

100‧‧‧Processing tools

1 is a perspective view showing a preferred embodiment of the folding stand of the present invention; FIG. 2 is a plan view of a preferred embodiment of the present invention, illustrating the folding stand in an extended state; 3 is a schematic diagram of a folding operation of one of the above preferred embodiments of the present invention; FIG. 4 is a schematic view showing a folding completion of the preferred embodiment of the present invention; FIG. Figure 6 is a schematic view showing the operation of the above preferred embodiment of the present invention; and Figure 7 is a partially enlarged view of Figure 6.

10‧‧‧ Carrier

11‧‧‧ first side

111‧‧‧First pivot

12‧‧‧ second side

121‧‧‧Second pivot

20‧‧‧Hands

30‧‧‧First bracket

31‧‧‧First pole

311‧‧‧ main section

312‧‧‧Sliding section

313‧‧‧ pivot board

314‧‧‧ Positioning Department

315‧‧‧ shaft

32‧‧‧Underframe Department

33‧‧‧ Turning Department

34‧‧‧ card fixing

40‧‧‧First support unit

41‧‧‧First support rod

42‧‧‧guide wheel

50‧‧‧Second bracket parts

51‧‧‧Second pole

511‧‧‧Axis

512‧‧‧End

52‧‧‧Roller

53‧‧‧guides

60‧‧‧second support unit

61‧‧‧second support rod

70‧‧‧Operating unit

71‧‧‧ drive rod

711‧‧‧ pivoting department

712‧‧‧Treading

72‧‧‧Put

721‧‧‧ first end

722‧‧‧second end

723‧‧‧掣面面

724‧‧‧ pulley

73‧‧‧ linkage

731‧‧‧First Pivot

732‧‧‧Second Pivot

74‧‧‧Return spring

100‧‧‧Processing tools

Claims (9)

A folding type tripod comprising: a carrier member having a first side portion and a second side portion opposite to the first side portion; a first bracket member having a pair of pivoting members respectively a first pole of the first side portion and a chassis portion coupled to the first masts, the first masts each having a main pole segment and a slidable sleeve corresponding to the corresponding main pole segment a pair of sliding rod segments, the main rod segments are engaged with the chassis portion, the sliding rod segments are pivotally connected to the first side portion; a first supporting unit is pivotally connected to the second side portion and the first portion a second bracket member having a pair of second masts respectively pivotally connected to the first masts, each of the second racks having a distal end portion corresponding to the chassis portion; And a second supporting unit pivotally connected between the first side portion and the second frame rods, and the second bracket member can be positioned relative to the first bracket member; wherein the folding foot When the frame is in an extended state, the second bracket member is unfolded relative to the first bracket member, and the second side portion of the carrier member is away from the first bracket member, the end portion is away from The second supporting unit can position the second bracket member relative to the first bracket member. When the folding tripod is in a folded state, the second bracket member is opposite to the first bracket. The second side of the carrier approaches the first bracket member, and the end portions approach the chassis portion. The folding stand according to claim 1, further comprising an operating unit mounted on the first bracket and corresponding to the second side, the operating unit having a driving rod, a driving unit The rod is spaced apart and pivoted on a push rod of a first mast and a link pivotally connected between the drive rod and the push rod, the drive rod having a pivotable relative to the first rod a pivoting portion and a stepping portion opposite to the pivoting portion, the push rod having a first end portion and a second end portion opposite the first end portion and corresponding to the carrier member, the connecting rod having a first pivoting portion pivotally connected between the pivoting portion and the stepping portion and a second pivoting portion pivotally connected to the first end portion, the second side portion of the carrier member approaching the first portion When a bracket member is stepped on, the stepping portion can be used to pull the push rod by the connecting rod, and the second end portion pushes the second side portion of the carrier member away from the first bracket member. The folding stand according to claim 2, wherein the operating unit further has a return spring coupled between the tread portion and the first end portion, and the elastic force is constant to cause the stepping The portion maintains a relatively close tendency to the second end. The folding stand according to claim 3, wherein the second bracket member has a guide rod, and the push rod of the operating unit further has a second end portion extending toward the first end portion a tilting surface and a pulley pivoted at the first end, and the first supporting unit has a guiding wheel, the driving surface of the pushing rod is used to move the guiding wheel and the first The supporting unit can interlock the second side portion away from the first bracket member, and the pulley swings the guiding rod to pivot the second bracket member outward relative to the first bracket member. The folding stand according to claim 1, wherein the second bracket further has a pair of rollers pivotally respectively disposed at the end portions. The folding stand according to claim 5, wherein the first frame of the first bracket member is vertically connected to the chassis portion, and the first bracket member further has two a turning portion between the first rod and the chassis portion, the turning portion corresponding to the ground when the second bracket member is unfolded relative to the first bracket member. The folding stand according to the sixth aspect of the invention, wherein the first bracket member further has two locking members respectively mounted on the turning portions. The folding stand according to claim 1, wherein the first rods of the first bracket member each have a pair of pivot plates disposed at the middle portion, and the respective pivot plates are solidified The second frame rods of the second bracket member further have a pivoting portion respectively pivotally connected to the pivot plates, and the folding tripod is in an extended state. The pivoting portions of the second masts are positioned against the positioning portions, and when the folding tripods are in a folded state, the pivoting portions are away from the positioning portions. The folding stand according to claim 1, further comprising a handle mounted on the first side of the carrier.