TWI421430B - Rapidly collapsible stand - Google Patents

Description

Tripod for quick folding

The present invention relates to a support carrier, and more particularly to a stand that can be quickly folded.

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-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 fast-retractable tripod that is simple in construction, easy to operate, and that can be quickly operated in an extended or folded state.

Therefore, the tripod that can be quickly folded by the present invention comprises a carrier member, a pair of pivoting members, 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 pivoting members are pivotally disposed on the first side of the carrier member, and the first bracket member has a pair of respectively a first frame connected to the first frame of the pivoting member and a chassis portion coupled to the first frame, the first supporting unit being pivotally connected between the second side and the first frame The second bracket member has a pair of second masts respectively pivotally connected to the first masts, and each of the second racks has a distal end portion corresponding to the chassis portion, the second supporting unit pivot Connecting between the pivoting members and the second frame rods, and positioning the second bracket member relative to the first bracket member, wherein the second bracket member is in an extended state, the second The bracket member is unfolded relative to the first bracket member, 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 bracket member Positioning is generated in the first bracket member, and when the tripod is in a folded state, the second bracket member is folded relative to the first bracket member, the carrier member A second side portion close to the first bracket member, the end portion close to the chassis portion.

The effect of the present invention: when the carrier is operated, 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 tripod can be in an extended state, or Lifting the handle portion of the first bracket member, and engaging the second bracket member with respect to the first bracket member, so that the tripod is in a folded state, and the tripod can be quickly deployed and folded. purpose.

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 fast-retracting tripod of the present invention comprises a carrier 10, a pair of pivoting members 20, a first bracket member 30, and a first supporting unit 40. A second bracket member 50, a second supporting unit 60, an operating unit 70 and a locking unit 80.

The carrier 10 has a rectangular frame shape for mounting and fixing a small processing tool 100, and has a first side portion 11 and a second side portion 12 opposite to the first side portion 11.

The pivoting members 20 are triangular plate-shaped and are respectively pivotally disposed on the first side portion 11 of the carrier 10.

The first bracket member 30 has a pair of first masts 31 respectively pivotally connected to the pivoting members 20, a handle portion that is coupled between the first masts 31 and corresponding to the first side portion 11 32. A chassis portion 33 opposite to the handle portion 32 and coupled to the first mast 31, and two turning portions 34 and 2 respectively disposed between the first mast 31 and the chassis portion 33 The locking members 35 respectively attached to the turning portions 34 and the shaft 313 connected between the turning portions 34 are respectively provided. Each of the first masts 31 has a pair of pivot plates 311 disposed at the middle portion, and a pair of positioning portions 312 disposed on the pivot plates 311 in an inclined shape, and the first masts 31 and the chassis portion 33 is vertically disposed. As shown in FIG. 3, the front portion of the handle portion 32 has an L shape and is disposed symmetrically and oppositely to the chassis portion 33. The transition portions 34 are curved. The first bracket member 30 further has two locking portions 36 for locking the handle portion 32 to the first frame rods 31, respectively.

The first support unit 40 has two first support bars 41 pivotally connected between the second side portion 12 and the first frame bars 31, respectively.

The second bracket member 50 has a pair of second masts 51 respectively pivotally connected to the pivot plates 311, and a pair of latches 52 fixed to the second masts 51 and approaching the pivot plates 311. And a pair of rollers 53 respectively pivotally mounted on the second masts 51, each of the second masts 51 having a distal end portion 511 corresponding to the chassis portion 311 and axially disposed by the rollers 53 The card plates 52 each have a stop portion 521 that is planar and corresponds to the positioning portions 312.

The second supporting unit 60 has two second supporting rods 61 pivotally connected between the pivoting members 20 and the card plates 52, and the second bracket member 50 can be opposite to the first bracket member 30. Generate positioning.

The operating unit 70 is mounted on the first bracket member 30 and has a step 71, a push rod 72 spaced apart from the step 71 and pivoted to one of the first masts 31, and a pivoting member A link 73 between the step 71 and the push rod 72 and a return spring 74. The step 71 has a pivoting portion 711 pivotable relative to the first mast 31 and pivoted on the shaft 313 and a stepping portion 712 opposite to the pivoting portion 711. The push rod 72 has a first end portion 721 and a second end portion 722 opposite to the first end portion 721 and corresponding to the second end portion 722 of the carrier member 10, the connecting rod 73 has a pivotal connection between the pivoting portion 711 and the stepping portion 712 a first pivoting portion 731 and a second pivoting portion 732 pivotally connected to the first end portion 721. The return spring 74 is coupled between the stepping portion 712 and the first end portion 721, and has a constant elastic force. The tread portion 712 and the second end portion 722 are kept relatively close.

Referring to FIG. 9 , the locking unit 80 is mounted on the first side portion 11 of the carrier 10 and has a sleeve 81 fixed to the bottom of the first side portion 11 , and is disposed in the sleeve 81 . a clamping rod 82 and a spring 83 disposed between the sleeve 81 and the clamping rod 82. The locking rod 82 has a locking end portion 821 corresponding to one of the pivoting members 20 and a The carding end 821 is opposite and protrudes from the pull end 822 outside the sleeve 81.

As shown in FIG. 2, when the stand is in an extended state, the first bracket member 30 is inclined with respect to the ground, and the second bracket member 50 is unfolded relative to the first bracket member 30. The carrier member 10 is deployed. Parallel to the ground, and the second side portion 12 is away from the first bracket member 30, the end portion 511 of the second bracket member 50 is also away from the chassis portion 33. At this time, the second supporting unit 60 The second bracket member 50 can be positioned relative to the first bracket member 30, that is, the card 52 can be pulled by the second support rods 61, so that the blocking portions 521 can be resisted. The positioning portion 312 can keep the first bracket member 30 and the second bracket member 50 at an angle, and the turning portions 34 of the first bracket member 30 correspond to the ground, and use the locking members 35. It can be stably positioned on the ground to ensure that the structure of the tripod as a whole is in a stable state.

At this time, when the second bracket member 50 is unfolded relative to the first bracket member 30, the locking end portion 821 of the locking unit 80 is stopped at the bottom of the corresponding pivoting member 20, which can further ensure that no malfunction occurs. .

And in the extended state of FIG. 1 and FIG. 2, if the tripod is to be moved, the operator only needs to slightly press the handle portion 32, and the latching members 35 are immediately off the ground, and the rollers 53 are utilized. The entire tripod can be easily dragged.

As shown in the imaginary lines of FIG. 3, FIG. 4 and FIG. 9, when the user wants to fold, the operator first pulls the pulling end portion 822 of the locking rod 82, and makes the locking end portion 821 correspond to the corresponding The bottom of the pivoting member 20 is removed, and the operator lifts the handle portion 32 of the first bracket member 30 upwardly. The first bracket member 30 then swings with the turning portions 34 as a fulcrum, and the second bracket member 50 gradually Retracting the first bracket member 30, and gradually bringing the end portion 511 closer to the chassis portion 33, and using the second bracket member 50 to pull the second supporting unit 60, the second supporting unit 60 again The second side portion 12 of the carrier member 10 is gradually approached by the pivotal member 20, the pivoting members 20, and the carrier member 10 are coupled to the first supporting unit 40. In the first bracket member 30, until the tripod shown in FIG. 4 is in a folded state, the second side portion 12 of the carrier member 10 approaches the first bracket member 30, and the stopping portion 521 is away from The positioning portion 312.

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 33 , and the first mast 31 and the handle portion 32 can be kept upright. The carrier member 10 is in close contact with the first bracket member 30, and the second bracket member 50 is also folded and attached to the other side of the first bracket member 30, so that the overall size of the tripod is reduced, thereby saving storage space. In addition, the first bracket member 30 can be detachably locked to the first frame rods 31 by the arrangement of the locking portions 36, which is advantageous for reducing the volume during packaging.

As shown in FIGS. 6 and 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 pedal 71 of the operating unit 70. The portion 712 is caused to pivot by the shaft 313 (the return spring 74 is stretched and has a rebound elastic force), and the stepping portion 712 can be pulled by the link 73. The push rod 72, and the second end portion 722 of the push rod 72 can push the first support unit 40 outward, and the second end portion 722 pushes the second side portion 12 of the carrier 10 away from The first supporting unit 40 is used to pull the carrier 10 by the first supporting unit 40, the pivoting member 20 is pulled by the supporting member 10, and the second supporting unit 60 is pulled by the pivoting member 20, When the handle portion 32 is pressed by the operator, 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 step 71 of the operation unit 70, the return spring 74 rebounds, and the step 71, the push rod 72, and the link 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

12. . . Second side

20. . . Pivot

30. . . First bracket

31. . . First pole

311. . . Pivot board

312. . . Positioning department

313. . . Shaft

32. . . Handle

33. . . Underframe

34. . . Turning section

35. . . Card fixing

36. . . Locking part

40. . . First support unit

41. . . First support rod

50. . . Second bracket

51. . . Second pole

511. . . End

52. . . Card board

521. . . Stop

53. . . Wheel

60. . . Second support unit

61. . . Second support rod

70. . . Operating unit

71. . . Stepping rod

711. . . Pivot

712. . . Tread

72. . . Putt

721. . . First end

722. . . Second end

73. . . link

731. . . First pivoting part

732. . . Second pivoting

74. . . Recovery spring

80. . . Carding unit

81. . . casing

82. . . Knitting rod

821. . . Carded end

822. . . Pulling end

83. . . spring

100. . . Processing machine

Figure 1 is a perspective view showing a preferred embodiment of the footrest of the present invention which can be quickly folded;

2 is a plan view of a preferred embodiment of the present invention, illustrating the stand in an extended state;

3 is a schematic view showing a folding operation of one of the above preferred embodiments of the present invention;

Figure 4 is a schematic view showing the completion of one of the above preferred embodiments of the present invention;

Figure 5 is a partial enlarged view of Figure 4;

Figure 6 is a schematic view showing the operation of the above preferred embodiment of the present invention;

Figure 7 is a partial enlarged view of Figure 6;

FIG. 8 is a schematic view showing the arrangement of a locking unit according to the above preferred embodiment of the present invention; and

Figure 9 is a cross-sectional view taken along line IX-IX of Figure 8.

10. . . Carrier

11. . . First side

12. . . Second side

20. . . Pivot

30. . . First bracket

31. . . First pole

311. . . Pivot board

312. . . Positioning department

313. . . Shaft

32. . . Handle

33. . . Underframe

34. . . Turning section

35. . . Card fixing

36. . . Locking part

40. . . First support unit

41. . . First support rod

50. . . Second bracket

51. . . Second pole

511. . . End

52. . . Card board

521. . . Stop

53. . . Wheel

60. . . Second support unit

61. . . Second support rod

70. . . Operating unit

71. . . Stepping rod

711. . . Pivot

712. . . Tread

72. . . Putt

721. . . First end

722. . . Second end

73. . . link

731. . . First pivoting part

732. . . Second pivoting

74. . . Recovery spring

80. . . Carding unit

100. . . Processing machine

Claims (10)

A tripod that can be quickly folded, comprising: a carrier having a first side portion and a second side portion opposite to the first side portion; a pair of pivoting members pivotally mounted on the carrier member a first bracket member having a pair of first masts respectively pivotally connected to the pivoting members and a chassis portion coupled to the first masts; a first supporting unit pivotally connected Between the second side portion and the first masts; a second bracket member having a pair of second racks respectively pivotally connected to the first racks, each of the second racks having a Corresponding to the end portion of the chassis portion; and a second supporting unit pivotally connected between the pivoting members and the second frame rods, and the second bracket member is opposite to the first bracket member Positioning is generated; wherein, when the stand 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, and when the tripod is in a folded state, the Two bracket member relative to the first bracket member collapsing, a second side portion of the carrier is close to the first bracket member, the end portion close to the chassis portion. The quick-folding tripod according to claim 1 of the patent application, further comprising an operating unit mounted on the first bracket member, the operating unit a stepping rod, a push rod spaced from the stepping rod and pivoted on one of the first rods, and a connecting rod pivotally connected between the stepping rod and the pushing rod, the stepping rod having a relative to a pivoting portion of the first lever pivoting and a stepping portion opposite to the pivoting portion, the push rod having a first end portion and a first end portion opposite to the first end portion and corresponding to the carrier member a second end portion, the connecting rod has 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 carrier member When the two side portions approach the first bracket member, the stepping portion can be stepped by the link to pull the push rod, and the second end portion pushes the second side portion of the carrier member away from the first portion Bracket parts. The quick-folding tripod according to the second aspect of the patent application, wherein the operating unit further has a return spring coupled between the stepped portion and the first end portion, and the elastic force is constant The tread portion and the second end portion tend to be relatively close. The fast-retracting tripod according to claim 1, wherein the second bracket member further has a pair of rollers pivotally respectively disposed at the end portions. The fast-retracting tripod according to claim 4, 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 frame and the chassis portion, the turning portion corresponding to the ground when the second bracket member is deployed relative to the first bracket member. The fast-retracting tripod according to claim 5, wherein the first bracket member further has two cards respectively mounted on the turning portions Order. The fast-retracting tripod according to claim 1, wherein the first masts of the first bracket member each have a pair of pivot plates disposed in the middle portion, the pivot plates each having The second frame rods of the second bracket member each have a pair of card plates that are adjacent to the pivot plates and pivotally connected to the second support unit, and the card plates are arranged in an inclined surface. Each of the stops has a planar stop portion. When the stand is in an extended state, the stop portion abuts against the positioning portion. When the stand is in a folded state, the stop portion is away from the positioning portion. The quick-folding tripod according to claim 1, further comprising a locking unit mounted on the first side of the carrier, the locking unit having a fixed side on the first side a sleeve, a clamping rod disposed in the sleeve, and a set of springs disposed between the sleeve and the clamping rod, the clamping rod having a locking end corresponding to one of the pivoting members And a pulling end opposite to the locking end portion and protruding from the outside of the sleeve, when the second bracket member is unfolded relative to the first bracket member, the engaging end portion is blocked in the corresponding portion The bottom of the pivoting piece. The quick-retractable tripod of claim 1, wherein the first bracket member further has a handle portion that is coupled between the first masts and disposed opposite the chassis portion. The fast-retracting tripod according to claim 9, wherein the first bracket member further has two locking portions for respectively locking the handle portion on the first masts.