EP1787766A1 - Support pliante pour machine - Google Patents

Support pliante pour machine Download PDF

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Publication number
EP1787766A1
EP1787766A1 EP06023683A EP06023683A EP1787766A1 EP 1787766 A1 EP1787766 A1 EP 1787766A1 EP 06023683 A EP06023683 A EP 06023683A EP 06023683 A EP06023683 A EP 06023683A EP 1787766 A1 EP1787766 A1 EP 1787766A1
Authority
EP
European Patent Office
Prior art keywords
legs
stand
platform
leg
links
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06023683A
Other languages
German (de)
English (en)
Inventor
Cheng-Hung Chiu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rexon Industrial Corp Ltd
Original Assignee
Rexon Industrial Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rexon Industrial Corp Ltd filed Critical Rexon Industrial Corp Ltd
Publication of EP1787766A1 publication Critical patent/EP1787766A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/02—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type
    • B25H1/04—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type portable

Definitions

  • the present invention relates to a collapsible stand for supporting a machine, and more particularly the collapsible stand can easily and conveniently be spread for use and folded for carry and/or storage.
  • the stand 80 includes a platform 81 on which a table saw 82 is mounted, two first legs 83 pivotally connected to the bottom side of the platform 81, two second legs 84 respectively connected to the two first legs 83 with a crossed manner, and two wheels 85 bilaterally connected to the front part of the platform 81.
  • the user When wanting to move the table saw 82, the user must turn the table saw 82 and the platform 81 from horizontal to vertical to have the front side of the table saw touch the floor, and then fold the first legs 83 and the second legs 84.
  • the user can pull or push the stand 80 to move. This way, turning and then folding stand 80, is complicated and inconvenient. Moreover, the user is not easy and further in danger to turn the table saw 82 and the platform 81 from horizontal to vertical by himself because of the heavy weight of table saw 82 and the stand 80.
  • FIG 12 shows a foldable stand for a threading machine according to a US patent, No. 5,560,582 .
  • the foldable stand 90 has a gas spring 91 and a piston rod 92 installed in the gas spring 91.
  • a damping resistance is provided to buffer the weight of the threading machine for preventing an accident when folding up the foldable stand 90.
  • the stand 90 has two wheels 94 respectively pivotally provided at the bottom ends of two legs 93 to make the stand 90 easy to move when collapsed.
  • the two wheels 94 form bearing points to support the stand 90 on the floor.
  • this pivotal connection with the wheels 94 and the bottom ends of two legs 93 is not stable.
  • the stand 90 may be vibrated easily upon an external force.
  • the present invention has been accomplished under the circumstances in view. It is therefore one objective of the present invention to provide a collapsible stand that can be conveniently and easily spread for use and folded for carry and/or storage.
  • the collapsible stand comprises a platform for supporting thereon a machine, two first legs, two second legs, at least one first springy member and a locking means.
  • the platform has two sleeves pivotally connected thereon.
  • the two first legs each have a top end pivotally connected to the platform.
  • Each second leg is pivotally connected to each first leg at a pivotal point and has a top part inserted through the sleeve and slidable along the sleeve resulting in relative movement to the platform.
  • the first springy member is sleeved onto one of the second leg, located between the sleeve and the pivotal point, and stopped against the sleeve.
  • the locking means is connected to the platform for fixing the second legs after spreading the stand such that the first legs and second legs support the platform at a predetermined height.
  • the top parts of the second legs are protruded out of the platform and the first springy member is compressed after the locking means releases the second legs and then the stand is folded.
  • the two second legs can be conveniently locked relative to the platform after the stand is spread and released from the lock when the user wants to fold the stand.
  • the assembly of the locking means the two sleeves and the two pairs of the first leg and the interconnected second leg, the user can easily spread or fold the collapsible stand without turning over it.
  • the springy member provides a damping resistance to the platform to help the user smoothly and stably lower the platform and the machine supported on the platform.
  • the springy member provides a rebound force to the platform, thereby enabling the user to lift the platform and the machine with less effort.
  • the springy member is a spring so as to save the manufacturing cost of the stand.
  • the stand is steady supported on the floor by the stable structure thereof.
  • a collapsible stand 10 in accordance with a first preferred embodiment of the present invention has a platform 20, two first legs 30, two second legs 40, two first springy members 42, and a locking device 50.
  • the platform 20 is adapted to carry a machine (not shown), such as a wood working machine (e.g., table saw, miter saw, scroll saw, band saw, drill press, sander, etc.).
  • the platform 20 can be a plate or frame.
  • the platform 20 is a rectangular frame, having a front frame part 21, a rear frame part 22, a left frame part 23, and a right frame part 24.
  • An outside wall 201 of each of the left frame part 23 and the right frame part 24 has an arched notch 25.
  • Two swivel hooks 26 are respectively pivotally mounted to the outside walls 201 of the left frame part 23 and the right frame part 24 adjacent to the arched notches 25.
  • Each of the swivel hooks 26 has a hooked portion 264 pivotally connected to the outside wall 201 over and near the arched notch 25, and a handle 262 extending outward from the hooked portion 264.
  • Two sleeves 28 are respectively pivotally connected to a portion of the platform 20 that is adjacent to the junction of the front frame part 21 and the left frame part 23 and another portion of the platform 20 that is adjacent to the junction of the front frame part 21 and the right frame part 24.
  • first legs 30 respectively pivotally connected to the junction of the rear frame part 22 and the left frame part 23 and the junction of the rear frame part 22 and the right frame part 24, and their bottom ends are bent forward for contacting the floor. Further, a transverse handlebar 32 is connected between the bottom ends of the first legs 30.
  • Each of the second legs 40 is pivotally connected to each of the first legs 30 by a pin 60 as the pivot at a pivotal point in a crossed manner.
  • the pin 60 is inserted through the first leg 30 and the interconnected second leg 40 at the pivotal point, and has a part protruding from the first leg 30 that is located at an outside relative to the interconnected second leg 40.
  • the second legs 40 each have a top part slidable through the sleeve 28 relative to the platform 20, and a bottom part with a bent portion 45 curved upwards and pivotally connected to a wheel 46 near its terminal.
  • each second leg 40 has a locating hole 44 near its top part through its inner side (see FIG 3), a flange 43 extending around its periphery between the locating hole 44 and the pin 60, and a buffer 48 disposed above the bent portion 45. Further, a transverse connecting bar 47 is connected between the bent portions 45 of the second legs 40 for stabilizing the second legs 40 when they stand on the floor.
  • the first springy member 42 is a spring sleeved onto the top part of the second leg 40, located between the sleeve 28 and the pivotal point, and stopped against the sleeve 28 and the flange 43 of the second leg 40.
  • the locking device 50 is adapted to fix the second legs 40 after the stand 10 is spread as shown in FIG 1.
  • the locking device 50 comprises an operating handle 52, a locating frame 54, two first links 58, and two second links 56.
  • the operating handle 52 has an elongated handle body 524, and a head 526.
  • the locating frame 54 is inserted through the front wall 212 of the front frame part 21 of the platform 20, having two mounting lugs 542 disposed at its two sides and affixed to the front wall 212 of the front frame part 21 of the platform 20.
  • the elongated handle body 524 is inserted through the front and rear sides of the locating frame 54 and the front wall 212.
  • a second springy member 528 for example, a spring is put around the elongated handle body 524, having one end stopped at the rear side of the locating frame 54 and the other end stopped at the rear end of the elongated handle body 524.
  • the head 526 is fixedly connected to the front end of the elongated handle body 524 and disposed outside the locating frame 54 and the platform 20 for operation by the user.
  • the two second links 56 are respectively made of a metal strip and arranged at two opposite sides of the elongated handle body 524 of the operating handle 52.
  • Each second link 56 has a front end pivotally connected to the elongated handle body 524 and a rear end pivotally connected to the first links 58.
  • the first links 58 are respectively made of a round metal rod, and the axial direction of the first link 58 is substantially perpendicular to the axial direction of the handle body 524.
  • Each first link 58 has a front end inserted through the locating frame 54 and pivotally connected to the rear end of the corresponding second link 56, and a rear end inserted into the locating hole 44 of the corresponding second leg 40 to fix the second legs 40 relative to the platform 20, such that the first legs 30 and the second legs 40 support the platform 20 at a predetermined height above the floor.
  • the operating handle 52 is movable between a first position, as shown in FIG 3, for moving the first links 58 to a locking position to lock the second legs 40 and a second position, as shown in FIG 6, for moving the first links 58 to an unlocking position to release the second legs 40.
  • two third springy members 582 which are springs in this preferred embodiment, are respectively sleeved onto a front end of the first links 58 and stopped against the locating frame 54 and a protrusion 584 of the first links 58.
  • the stand 10 when wanting to fold the stand 10, pull the head 526 of the operating handle 52 outward with one single hand and make the spring 528 compressed. At this time, the two second links 56 are carried by the elongated handle body 524 toward the front wall 212 of the front frame part 21 of the platform 20 (see FIG 6), and the two first links 58 are pulled by the second links 56 out of the locating holes 44 of the second legs 40, and the third springy members 582 are compressed. Therefore, the stand 10 is gradually lowered.
  • the top parts of the second legs 40 are guided by the corresponding sleeves 28 and project outward from the outside of the front wall 212 of the front frame part 21 of the platform 20, and the first legs 30 are rotated relative to the platform 20 till that the two pairs of the first leg 30 and the interconnected second leg 40 are respectively received in two receiving spaces 29 defined by the inner side of the left frame part 23 and right frame part 24.
  • the handlebar 32 is disposed outside the platform 20 and spaced away from the front wall 212 of the front frame part 21 of the platform 20 at a predetermined distance.
  • the two pins 60 that extend through the first legs 30 are respectively received in the arched notches 25 and protrude from the platform 20.
  • the user can turn the handles 262 of the swivel hooks 26 to make the corresponding hooked portions 264 hook the protruding parts of the pins 60 respectively to fix two pairs of the first leg 30 and the interconnected second leg 40 relative to the platform 20. Therefore, the platform 20, the first legs 30 and the second legs 40 are locked together, not separated from each other due to the first springy members 42, as shown in FIGS 4-6.
  • the two first springy members 42 that are respectively sleeved onto the top parts of the second legs 40 and stopped between the sleeves 28 and the flanges 43 of the second legs 40 are compressed to provide a damping resistance to the platform 10, and therefore the platform 10 can be lowered gradually and smoothly.
  • the buffers 48 of the two second legs 40 are disposed between the second legs 40 and the platform 20, absorbing impact of the platform 20 against the second legs 40.
  • the user can lift the handlebar 32 and move the stand 10 on the floor by means of the wheels 46.
  • the user can turn the handles 262 of the swivel hooks 26 to make the hooked portions 264 of the swivel hooks 26 release the corresponding pins 60, step the handlebar 32 to hold down the handlebar 32 on the floor, and then lift the platform 20 with the hands.
  • the compressed first springy members 42 provide a rebound force to the platform 20, and therefore the user can lift the platform 20 with less effort.
  • the top parts of the second legs 40 move backward into the sleeves 28 inside the front frame part 21 of the platform 20, and the third springs 582 in compressed around the first links 58 and the second springs 582 in compressed around elongated handle body 524 provide an outward force to force the first links 58 to move into the locating holes 44 of the second legs 40.
  • the locking device 50 fixes the second legs 40 relative to the platform 20 so that the stand 10 is supported at a predetermined height.
  • the springy members 582 and 528 are used to return the two first links 58 and the handle 52 so as to force the two first links 58 to lock the two second legs 40.
  • simply using the third springy members 582 or the second spring member 528 can also achieve the same effect.
  • the two second legs 40 can conveniently be locked relative to the platform 20 after the stand 10 is spread.
  • the user can also operate the locking device 50 to release the lock to the second legs 40 from the platform 20.
  • the first springy members 42 provide the damping resistance to the platform 20, thereby enabling the user to lower the platform 20 and the machine carried on the platform 20 smoothly.
  • the first springy members 42 provide the rebound force to the platform 20, thereby enabling the user to lift the platform 20 and the machine carried on the platform 20 with less effort.
  • the stand 10 after the stand 10 is spread, it is more stable to bear the stand 10 on the floor by the bent portions 45 of the second legs 40 than the wheels 94 in the prior art, and the first springy members 42 of springs is inexpensive in the embodiment.
  • each the second leg 40 can be opened another locating hole at its inner side.
  • the compressed third springy members 582 force the first links 58 into the other locating holes at the second legs 40 to lock the second legs 40 at the collapsed status.
  • This design can be used to substitute for the design of the swivel hooks 26 and the arched notches 25.
  • FIGS. 7-9 show a collapsible stand 70 in accordance with a second preferred embodiment of the present invention.
  • This second embodiment is substantially similar to the aforesaid first preferred embodiment with the exceptions outlined hereinafter.
  • the two first legs 71 are not arranged in parallel.
  • One first leg 71 has a lower half part curved outward at an angle and obliquely extending forward relative to the platform 73.
  • the two second legs 72a are not arranged in parallel too.
  • One second leg 72a has a lower half part curved outward at an angle and obliquely extending backwards relative to the platform 73.
  • the two outward curved legs 71 and 72a are preferably set opposite and away from the side to which the user approaches when operating the machine.
  • the arrangement enables the stand 70 to stably stand on the floor when the user pushes the stand 70. Under the requirement of stability, it can eliminates the aforesaid bent portions 45 of the second legs 72a and makes the wheels 46 directly contact the floor to support the stand 70 stably on the floor.
  • the locking device 74 of this second embodiment is installed on the front wall 734 of the front frame part 732 of the platform 73, and the two first links 742 are disposed outside the front frame part 732 to make the rear ends of the two first links 742 visible from the outside of the stand 70.
  • the rear ends of the first links 742 respectively press against the side surfaces of the top parts of the second legs 72a to hold the stand 70 in the collapsed status.
  • the rear ends of the first links 742 respectively press against terminal surfaces of the top parts of the second legs 72a.
  • each second leg 72a is provided with a locating groove 722 for accommodating the rear end of the corresponding first link 742.
  • the locking device 74 fixes the two second legs 72a relative to the platform 73 at the spread status to make the first legs 71 and the second legs 72a support the platform 73 above the floor at a predetermined height.
  • the locking device 74 further comprises an auxiliary frame 76.
  • the auxiliary frame 76 has a U-shaped profile, which is fixedly connected to the platform 73 and surrounds the operating handle 77. When wanting to pull the operating handle 77, the user can stop the palm of the hand against the auxiliary frame 76 and then use the fingers to pull the operating handle 77.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Ladders (AREA)
EP06023683A 2005-11-22 2006-11-14 Support pliante pour machine Withdrawn EP1787766A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005101248397A CN100571976C (zh) 2005-11-22 2005-11-22 用于机具的支撑架

Publications (1)

Publication Number Publication Date
EP1787766A1 true EP1787766A1 (fr) 2007-05-23

Family

ID=37806664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06023683A Withdrawn EP1787766A1 (fr) 2005-11-22 2006-11-14 Support pliante pour machine

Country Status (2)

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EP (1) EP1787766A1 (fr)
CN (1) CN100571976C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI393617B (zh) * 2010-12-28 2013-04-21 Rexon Ind Corp Ltd 具有可收折腳架的載台
CN104526658A (zh) * 2014-12-03 2015-04-22 宁波天瑞精工机械有限公司 龙门机床主轴箱的刮研辅助工装
US20220063084A1 (en) * 2020-08-31 2022-03-03 Sawstop Holding Llc Folding stand with securing mechanism

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8047553B2 (en) * 2008-05-22 2011-11-01 Robert Bosch Gmbh Collapsible rolling support stand having a support leg
CN102632492B (zh) * 2011-02-14 2014-10-22 力山工业股份有限公司 具有可收折脚架的载台
CN102313118B (zh) * 2011-09-06 2013-06-05 江苏金飞达电动工具有限公司 可折叠手推式支架
CN103009360B (zh) * 2011-09-21 2015-03-11 力山工业股份有限公司 收折式脚架

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2645773A1 (de) * 1976-10-09 1978-04-13 Carl Ullrich Dr Peddinghaus Lasttragendes federbein
US4728118A (en) * 1985-02-11 1988-03-01 Roco Tool Group, Inc. Collapsible carrier stand for heavy machine
US4967672A (en) * 1989-05-24 1990-11-06 Teledyne Industries, Inc. Foldable stand
EP0532132A2 (fr) * 1988-01-29 1993-03-17 Emerson Electric Co. Appui pliable pour une filière
GB2363366A (en) * 2000-07-05 2001-12-19 John Leslie Blackford A trolley convertible into a height adjustable worktable
WO2003064115A1 (fr) * 2002-01-30 2003-08-07 Wolfcraft Gmbh Support pliable pour scie pendulaire
US20050133682A1 (en) * 2003-12-17 2005-06-23 Durq Machinery Corp. Folding collapsible stand for table saw

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2645773A1 (de) * 1976-10-09 1978-04-13 Carl Ullrich Dr Peddinghaus Lasttragendes federbein
US4728118A (en) * 1985-02-11 1988-03-01 Roco Tool Group, Inc. Collapsible carrier stand for heavy machine
EP0532132A2 (fr) * 1988-01-29 1993-03-17 Emerson Electric Co. Appui pliable pour une filière
US4967672A (en) * 1989-05-24 1990-11-06 Teledyne Industries, Inc. Foldable stand
GB2363366A (en) * 2000-07-05 2001-12-19 John Leslie Blackford A trolley convertible into a height adjustable worktable
WO2003064115A1 (fr) * 2002-01-30 2003-08-07 Wolfcraft Gmbh Support pliable pour scie pendulaire
US20050133682A1 (en) * 2003-12-17 2005-06-23 Durq Machinery Corp. Folding collapsible stand for table saw

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI393617B (zh) * 2010-12-28 2013-04-21 Rexon Ind Corp Ltd 具有可收折腳架的載台
CN104526658A (zh) * 2014-12-03 2015-04-22 宁波天瑞精工机械有限公司 龙门机床主轴箱的刮研辅助工装
US20220063084A1 (en) * 2020-08-31 2022-03-03 Sawstop Holding Llc Folding stand with securing mechanism

Also Published As

Publication number Publication date
CN1970223A (zh) 2007-05-30
CN100571976C (zh) 2009-12-23

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