MULTI-ANGLE ADJUSTABLE WORKTABLE

Abstract

A multi-angle adjustable worktable includes a base frame, a swing frame, a first angle adjustment device, a table board, and a second angle adjustment device. The first angle adjustment device is disposed between the base frame and one end of the swing frame, so as to be operated by the user for adjusting the swing angle position of the swing frame with respect to the base frame. The second angle adjustment device is disposed between another end of the swing frame and the table board, so as to be operated by the user for adjusting the swing angle position of the table board with respect to the swing frame. Thus, the present invention facilitates the adjustment of the height and the angle of the worktable.

Claims

1. A multi-angle adjustable worktable, comprising: a base frame; a swing frame having a first end and an opposite second end, the first end pivotally disposed on a top part of the base frame along a first axis; a first angle adjustment device having a first rotation member, a first shaft connected with the first rotation member, and a first clutch assembly disposed on the first shaft; the first shaft passing through the base frame and the swing frame along the first axis, the first rotation member rotatable with respect to the first shaft, so that the first clutch assembly generates a disengagement motion along the first axis for adjusting a swing angle position of the swing frame with respect to the base frame; a table board, pivotally disposed on the second end of the swing frame along a second axis; and a second angle adjustment device having a second rotation member, a second shaft connected with the second rotation member, and a second clutch assembly disposed on the second shaft; the second shaft passing through the table board and the swing frame along the second axis, the second rotation member rotatable with respect to the second axis, so that the second clutch assembly generates a disengagement motion along the second axis for adjusting a swing angle position of the table board with respect to the swing frame.

2. The multi-angle adjustable worktable of claim 1, wherein the first clutch assembly comprises a first sliding tooth and a first fixing tooth disposed between the base frame and the swing frame; the first rotation member drives the first shaft to displace along the first axis, so that the first sliding tooth is engaged with or disengaged from the first fixing tooth; the second clutch assembly comprises a second sliding tooth and a second fixing tooth disposed between the table board and the swing frame; the second rotation member drives the second shaft to displace along the second axis, so that the second sliding tooth is engaged with or disengaged from the second fixing tooth.

3. The multi-angle adjustable worktable of claim 2, wherein the first rotation member is screwed to the first shaft; the first shaft comprises a first pressing member; the first sliding tooth and the first fixing tooth are combined and disposed on the first shaft; when the first rotation member is in a fastened status, the first pressing member presses the first sliding tooth along the first axis, so that the first sliding tooth is engaged with the first fixing tooth; when the first rotation member is in a loosened status, the first sliding tooth is disengaged from the first fixing tooth, so that the first sliding tooth and the first fixing tooth are allowed to rotate with respect to each other; the second rotation member is screwed to the second shaft; the second shaft comprises a second pressing member; the second sliding tooth and the second fixing tooth are combined and disposed on the second shaft; when the second rotation member is in a fastened status, the second pressing member presses the second sliding tooth along the second axis, so that the second sliding tooth is engaged with the second fixing tooth; when the second rotation member is in a loosened status, the second sliding tooth is disengaged from the second fixing tooth, so that the second sliding tooth and the second fixing tooth are allowed to rotate with respect to each other.

4. The multi-angle adjustable worktable of claim 3, wherein a first resilient member is disposed between the first sliding tooth and the first fixing tooth; a second resilient member is disposed between the second sliding tooth and the second fixing tooth.

5. The multi-angle adjustable worktable of claim 4, wherein the first sliding tooth is disposed on the swing frame and not rotatable with respect to the swing frame; the first fixing tooth is disposed on the base frame and not rotatable with respect to the base frame; the second sliding tooth is disposed on the swing frame and not rotatable with respect to the swing frame; the second fixing tooth is disposed on the table board and not rotatable with respect to the table board.

6. The multi-angle adjustable worktable of claim 4, wherein two first clutch assemblies are included and disposed on two ends of the first shaft, respectively; two second clutch assemblies are included and disposed on two ends of the second shaft, respectively.

7. The multi-angle adjustable worktable of claim 6, wherein an outer wall of the first sliding tooth of each first clutch assembly has a first stopper, and an outer wall of the first fixing tooth of each first clutch assembly has a first sliding groove corresponding to the first stopper for limiting a rotation angle of the first sliding tooth with respect to the first fixing tooth; an outer wall of the second sliding tooth of each second clutch assembly has a second stopper, and an outer wall of the second fixing tooth of each second clutch assembly has a second sliding groove corresponding to the second stopper for limiting a rotation angle of the second sliding tooth with respect to the second fixing tooth.

8. The multi-angle adjustable worktable of claim 7, wherein a first pivot hole is disposed on two sides of the base frame, respectively, and a second pivot hole is disposed on two sides of the first end, respectively; each first clutch assembly is disposed between the neighboring first pivot hole and second pivot hole; a third pivot hole is disposed on two sides of the second end, respectively, and a fourth pivot hole is disposed on two sides of the table board, respectively; each second clutch assembly is disposed between the neighboring third pivot hole and fourth pivot hole.

9. The multi-angle adjustable worktable of claim 8, wherein the first shaft comprises a first operation end and a first linkage end; the first rotation member is screwed to the first operation end; one of the first clutch assemblies is disposed on the first operation end, and the other first clutch assembly is disposed on the first linkage end; the first pressing member is screwed to the first operation end, and presses the first sliding tooth on the first operation end; a first distal member is screwed to the first linkage end, and presses the other first sliding tooth on the first linkage end; the second shaft comprises a second operation end and a second linkage end; the second rotation member is screwed to the second operation end; one of the second clutch assemblies is disposed on the second operation end, and the other second clutch assembly is disposed on the second linkage end; the second pressing member is screwed to the second operation end, and presses the second sliding tooth on the second operation end; a second distal member is screwed to the second linkage end, and presses the other second sliding tooth on the second linkage end.

10. The multi-angle adjustable worktable of claim 9, wherein the first pivot hole and the second pivot hole comprise a first positioning hole therein, respectively; the first sliding tooth and the first fixing tooth of each first clutch assembly comprise a corresponding first protrusion inserted into the first positioning hole, such that the first sliding tooth and the first fixing tooth are disposed in the first pivot hole and the second pivot hole, respectively, and prevented from rotating with respect to the first pivot hole and the second pivot hole, respectively; the third pivot hole and the fourth pivot hole comprise a second positioning hole therein, respectively; the second sliding tooth and the second fixing tooth of each second clutch assembly comprise a corresponding second protrusion inserted into the second positioning hole, such that the second sliding tooth and the second fixing tooth are disposed in the third pivot hole and the fourth pivot hole, respectively, and prevented from rotating with respect to the third pivot hole and the fourth pivot hole, respectively.

11. The multi-angle adjustable worktable of claim 10, wherein the base frame comprises two side bars and two bottom bars connected to the two side bars; the two bottom bars are arranged in parallel to a ground surface; two supporting members are disposed and protrude on two facing sides of the two side bars, so as to support the first end of the swing frame, such that the swing frame is kept to be in parallel to the two bottom bars.

12. The multi-angle adjustable worktable of claim 11, wherein an upper crossbar is disposed between the two side bars, a lower crossbar is disposed between the two bottom bars, and a pulling rod is disposed between the upper crossbar and the lower crossbar.

13. The multi-angle adjustable worktable of claim 11, wherein the table board comprises two arm frames disposed on two sides of a bottom part of the table board, respectively; each arm frame comprises an inclined side disposed thereon and arranged away from the second axis; the two inclined sides are allowed to abut against the two side bars, so that the table board is arranged in parallel to the two bottom bars.

14. The multi-angle adjustable worktable of claim 13, wherein two sides of the swing frame comprise a resilient holding device arranged in adjacent to the second axis, respectively; when the swing frame is not held on the two supporting members, the two resilient holding devices support the two arm frames, so as to keep the table board to be in parallel to the two bottom bars.

15. The multi-angle adjustable worktable of claim 14, wherein the swing frame comprises two parallel side frames and two tube members connected with the two side frames; the first shaft and the second shaft pass through one of the two tube members, respectively; each side frame comprises a through hole; each resilient holding device comprises a spring and a sticking part disposed on the spring; each spring is disposed in one of the corresponding through hole, and each sticking part is kept protruding from the corresponding through hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0026] The aforementioned and further advantages and features of the present invention will be understood by reference to the description of the preferred embodiment in conjunction with the accompanying drawings where the components are illustrated based on a proportion for explanation but not subject to the actual component proportion.

[0027] Referring to FIG. 1 to FIG. 12, the present invention discloses a multi-angle adjustable worktable 100, comprising a base frame 10, a swing frame 20, a first angle adjustment device 30, a table board 40, and a second angle adjustment device 50. The user operates the first angle adjustment device 30 to adjust the swing angle position of the swing frame 20 with respect to the base frame 10, and operates the second angle adjustment device 50 to adjust the swing angle position of the table board 40 with respect to the swing frame 20. Thereby adjusting the height and angle of the worktable 100.

[0028] Referring to FIG. 1 and FIG. 2, the base frame 10 comprises two side bars 11 and two bottom bars 12 connected thereto. The two bottom bars 12 are arranged in parallel to the ground. Two supporting members 13 are disposed and protrude on two facing sides of the two side bars 11, respectively, and arranged in adjacent to the top part of the two side bars 11. Also, an upper crossbar 14 is disposed between the two side bars 11, and a lower crossbar 15 is disposed between the two bottom bars 12. Two pulling rods 16 are disposed between the upper crossbar 14 and the lower crossbar 15 and arranged in a V-shaped arrangement. The pulling rods 16 are applied to improve the rigidity of the overall worktable 100. As shown by FIG. 3, a first pivot hole 17 is disposed on the top part of the two side bars 11, respectively, and a first slot hole 171 is disposed on the back of each first pivot hole 17 and in communication therewith.

[0029] Referring to FIG. 3 and FIG. 4, the swing frame 20 comprises a first end 21 and an opposite second end 22. The first end 21 is pivotally disposed on the top part of the base frame 10 along a first axis L1. The table board 40 is pivotally disposed on the second end 22 of the swing frame 20 along a second axis L2. The first end 21 of the swing frame 20 is supported by two supporting members 13, so that the swing frame 20 is kept to be in parallel to the two bottom bars 12, as shown by FIG. 2. The swing frame 20 comprises two parallel side frames 23 and two tube members 24 connected with the two side frames 23. Each side frame 23 comprises a through hole 231. The first end 21 and the second end 22 of the swing frame 20 are disposed on two ends of the two side frames 23. Also, two sides of the first end 21 have a second pivot hole 25 corresponding to the first pivot hole 17, respectively; two sides of the second end 22 have a third pivot hole 26, respectively.

[0030] Referring to FIG. 9, in the embodiment, two sides of the swing frame 20 comprise a resilient holding device 60, respectively. Each resilient holding device 60 has a spring 61 and a sticking part 62 disposed on the spring 61. Each spring 61 is disposed in the corresponding through hole 231, and each sticking part 62 is kept protruding from the corresponding through hole 231.

[0031] Referring to FIG. 3 and FIG. 5, the first angle adjustment device 30 comprises a first rotation member 31, a first shaft 32, and a first clutch assembly 33 disposed on the first shaft 32. The first shaft 32 passes through the tube member 24 disposed on the first end 21 of the swing frame 20, so that the first shaft 32 passes through the base frame 10 and the swing frame 20 along the first axis L1. The first shaft 32 is connected with the first rotation member 31, and the first rotation member 31 is allowed to rotate with respect to the first axis L1, such that the first clutch assembly 33 generates a disengagement motion along the first axis L1, allowing the swing angle position of the swing frame 20 with respect to the base frame 10 to be adjusted.

[0032] In the embodiment, a first clutch assembly 33 is disposed on two ends of the first shaft 32, respectively. Each of the first clutch assembly 33 is disposed between the neighboring first pivot hole 17 and the second pivot hole 25. The first shaft 32 comprises a first operation end 321 and a first linkage end 322 that are exposed out of the two first slot holes 171, respectively. As shown by FIG. 5, one of the first clutch assemblies 33 is disposed on the first operation end 321, and the other first clutch assembly 33 is disposed on the first linkage end 322. Each of the first operation end 321 and the first linkage end 322 comprises a thread 321 a, 322 a. The first rotation member 31 is screwed to the thread 321 a of the first operation end 321.

[0033] Each first clutch assembly 33 comprises a first sliding tooth 331 and a first fixing tooth 332 combined with the first sliding tooth 331 between the base frame 10 and the swing frame 20. The first sliding tooth 331 and the first fixing tooth 332 comprises a tooth 333, 334 that are engaged with each other. The first rotation member 31 drives the first shaft 32 to displace along the first axis L1, whereby the first sliding tooth 331 is engaged with or disengaged from the first fixing tooth 332. Therein, a first resilient member 70 is disposed between the first sliding tooth 331 and the first fixing tooth 332.

[0034] In addition, a first pressing member 34 is screwed to the thread 321 a of the first shaft 32, so that the first pressing member 34 presses the first sliding tooth 331 located on the first operation end 321. A first distal member 35 is screwed to the thread 322 a of the first linkage end 322, so that the first distal member 35 presses the other first sliding tooth 331 located on the first linkage end 322.

[0035] Referring to FIG. 5, when the first rotation member 31 is in a fastened status, the first pressing member 34 presses the first sliding tooth 331 along the first axis L1, so that the tooth 333 of the first sliding tooth 331 is engaged with the tooth 334 of the first fixing tooth 332. Meanwhile, the first resilient member 70 is compressed. As shown by FIG. 6, when the first rotation member 31 is in a loosened status, the first pressing member 34 does not press the first sliding tooth 331, and the resilience of the first resilient member 70 is released to disengage the first sliding tooth 331 from the first fixing tooth 332, Therefore, the first sliding tooth 331 and the first fixing tooth 332 are allowed to rotate with respect to each other, such that the swing angle position of the swing frame 20 with respect to the base frame 10 is adjusted, as shown by FIG. 12.

[0036] Understandably, when the first rotation member 31 is in the fastened status, the first distal member 35 presses the first sliding tooth 331 of the first linkage end 322, so that the first fixing tooth 332 cooperating therewith is engaged with the first sliding tooth 331. In contrast, when the first rotation member 31 is in the loosened status, the resilience of the first resilient member 70 is released, so that the first sliding tooth 331 is disengaged from the first fixing tooth 332, allowing the first sliding tooth 331 and the first fixing tooth 332 to rotate with respect to each other.

[0037] The table board 40 comprises two arm frames 41 disposed on two sides of the bottom part of the table board 40. Each arm frame 41 comprises an inclined side 42 disposed on the arm frame 41 and arranged away from the second axis L2. The two inclined sides 42 are allowed to abut against the two side bars 11, so that the table board 40 is arranged in parallel to the two bottom bars 12. Two sides of the table board 40 comprise a fourth pivot hole 43 corresponding to the third pivot hole 26, respectively. A second slot hole 431 is disposed on the back of each fourth pivot hole 43 and in communication therewith.

[0038] As shown by FIG. 3, FIG. 4, and FIG. 7, the second angle adjustment device 50 is structurally similar to the first angle adjustment device 30. The second angle adjustment device 50 comprises a second rotation member 51, a second shaft 52, and a second clutch assembly 53 disposed on the second shaft 52. The second shaft 52 passes through the tube member 24 disposed on the second end 22 of the swing frame 20, so that the second shaft 52 passes through the table board 40 and the swing frame 20 along the second axis L2. The second shaft 52 is connected with the second rotation member 51, and the second rotation member 51 is allowed to rotate with respect to the second axis L2, such that the second clutch assembly 53 generates a disengagement motion along the second axis L2, allowing the swing angle position of the table board 40 with respect to the swing frame 20 to be adjusted.

[0039] In the embodiment, a second clutch assembly 53 is disposed on two ends of the second shaft 52, respectively. Each of the second clutch assembly 53 is disposed between the neighboring third pivot hole 26 and the fourth pivot hole 43. The second shaft 52 comprises a second operation end 521 and a second linkage end 522 that are exposed out of the two second slot holes 431, respectively. The second rotation member 51 is screwed to a thread 521 a of the second operation end 521. As shown by FIG. 7, one of the second clutch assemblies 53 is disposed on the second operation end 521, and the other second clutch assembly 53 is disposed on the second linkage end 522.

[0040] Each second clutch assembly 53 comprises a second sliding tooth 531 and a second fixing tooth 532 combined with the second sliding tooth 531 between the table board 40 and the swing frame 20. A tooth 533 of the second sliding tooth 531 and a tooth 534 of the second fixing tooth 532 are engaged with each other. The second rotation member 51 drives the second shaft 52 to displace along the second axis L2, whereby the second sliding tooth 531 is engaged with or disengaged from the second fixing tooth 532. Therein, a second resilient member 80 is disposed between the second sliding tooth 531 and the second fixing tooth 532.

[0041] A second pressing member 54 is screwed to the thread 521 a of the second shaft 52, so that the second pressing member 54 presses the second sliding tooth 531 located on the second operation end 521. A second distal member 55 is screwed to a thread 522a of the second linkage end 522, so that the second distal member 55 presses the other second sliding tooth 531 located on the second linkage end 522.

[0042] Referring to FIG. 7, when the second rotation member 51 is in a fastened status, the second pressing member 54 presses the second sliding tooth 531 along the second axis L2, so that the tooth 533 of the second sliding tooth 531 is engaged with the tooth 534 of the second fixing tooth 532. Meanwhile, the second resilient member 80 is compressed. As shown by FIG. 8, when the second rotation member 51 is in a loosened status, the second pressing member 54 does not press the second sliding tooth 531, and the resilience of the second resilient member 80 is released to disengage the second sliding tooth 531 from the second fixing tooth 532, Therefore, the second sliding tooth 531 and the second fixing tooth 532 are allowed to rotate with respect to each other, such that the swing angle position of the table board 40 with respect to the swing frame 20 is adjusted, as shown by FIG. 11.

[0043] Understandably, when the second rotation member 51 is in the fastened status, the second distal member 55 presses the second sliding tooth 531 of the second linkage end 522, so that the second fixing tooth 532 cooperating therewith is engaged with the second sliding tooth 531. In contrast, when the second rotation member 51 is in the loosened status, the resilience of the second resilient member 80 is released, so that the second sliding tooth 531 is disengaged from the second fixing tooth 532, allowing the second sliding tooth 531 and the second fixing tooth 532 to rotate with respect to each other.

[0044] Referring to FIG. 10, in view of FIG. 3 and FIG. 4, in the embodiment, the outer wall of the first sliding tooth 331 of each first clutch assembly 33 has a first stopper 331 a, and the outer wall of the first fixing tooth 332 of each first clutch assembly 33 has a first sliding groove 332a corresponding to the first stopper 331 a for limiting the rotation angle of the first sliding tooth 331 with respect to the first fixing tooth 332. Therein, the first sliding groove 332a covers an angle ranging between 30 to 80 degrees, so that the swing frame 20 is allowed to pivot by 30 to 80 degrees with respect to the base frame 10. The outer wall of the second sliding tooth 531 of each second clutch assembly 53 has a second stopper 531 a, and the outer wall of the second fixing tooth 532 of each second clutch assembly 53 has a second sliding groove 532a corresponding to the second stopper 531a for limiting the rotation angle of the second sliding tooth 531 with respect to the second fixing tooth 532. Therein, the second sliding groove 532a covers an angle ranging between 30 to 80 degrees, so that the table board 40 is allowed to pivot by 30 to 80 degrees with respect to the swing frame 20.

[0045] In the embodiment, the first sliding tooth 331 is disposed on the swing frame 20 and not rotatable with respect to the swing frame 20; the first fixing tooth 332 is disposed on the base frame 10 and not rotatable with respect to the base frame 10. The second sliding tooth 531 is disposed on the swing frame 20 and not rotatable with respect to the swing frame 20; the second fixing tooth 532 is disposed on the table board 40 and not rotatable with respect to the table board 40.

[0046] Referring to FIG. 5 and FIG. 7, the first pivot hole 17 and the second pivot hole 25 comprise a first positioning hole 17 a, 25 a therein, respectively; the first sliding tooth 331 and the first fixing tooth 332 of each first clutch assembly 33 comprise a corresponding first protrusion 331 b, 332 b passing through the first positioning hole 17 a, 25 a, such that the first sliding tooth 331 and the first fixing tooth 332 are prevented from rotating with respect to the first pivot hole 17 and the second pivot hole 25. The third pivot hole 26 and the fourth pivot hole 43 comprise a second positioning hole 26a, 43a therein, respectively; the second sliding tooth 531 and the second fixing tooth 532 of each second clutch assembly 53 comprise a corresponding second protrusion 531b, 532b passing through the second positioning hole 26a, 43a, such that the second sliding tooth 531 and the second fixing tooth 532 are prevented from rotating with respect to the third pivot hole 26 and the fourth pivot hole 43.

[0047] Further, the resilient holding devices 60 disposed on two sides of the swing frame 20 are arranged in adjacent to the second axis L2. Therefore, when the swing frame 20 is not held on the two supporting members 13, the sticking parts 62 of the two resilient holding devices 60 support the two arm frames 41 of the table board 40, such that the table board 40 is kept to be in parallel to the two bottom bars 12, as shown by FIG. 12

[0048] Referring to FIG. 11 and FIG. 12, in view of FIG. 3 and FIG. 4, by conducting the adjustment through the first angle adjustment device 30 and the second angle adjustment device 50, the swing angle positions of the swing frame 20 and the table board 40 are adjusted, respectively, so as to achieve the height and angle adjustment of the worktable 100, facilitating a higher convenience and comfort during the usage of the worktable 100, thereby fulfilling different operational demands through a quick adjustment.

[0049] Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.