TWM518491U - Anti-sway pivotal device and cane chair having the same - Google Patents

Description

Anti-sway pivoting device and cane chair with anti-sway pivoting device

The present invention relates to a pivoting device and a chair, and more particularly to a swaying pivoting device capable of effectively reducing the amplitude of sloshing and preventing annoying abnormal sounds, and the cane chair having the swaying pivoting device.

Referring to FIG. 1 and FIG. 2, a conventional cane chair 1 includes a main pole 11 and a seat 12 and a set of legs 13 respectively folded around the main pole 11. The set of tripods 13 includes two upper legs 131 that are respectively pivotable relative to the main rods 11, two lower legs 132 pivotally connected to the upper legs 131, and two pivotally connected to the lower legs 132, respectively. And a pivot rod 133 that is pivotable relative to the main rod 11.

Since each pivoting rod 133 and its corresponding lower leg 132 have a gap between the pivotal joints thereof, the overall structural strength is reduced. Therefore, the cane chair 1 usually utilizes a plug 14 (as shown in the figure). 2)) to increase the structural strength of the pivot joint. However, the two inner side surfaces 141 of the plug member 14 are substantially equidistant from the pivot rods 133 and have a gap design, so that the cane chair 1 inevitably has a swaying and annoying sound when riding. The resulting defect, in addition, it can be understood that when the side faces 141 of the plug member 14 are pressed against the pivoting rod 133, the cane chair 1 has an unfavorable collapse or difficulty. The shortcomings of the expansion.

Therefore, the object of the present invention is to provide an anti-sway pivoting device which can effectively reduce the amplitude of sway, prevent annoying abnormal sounds, and smooth the pivoting process.

Therefore, the novel anti-sway pivoting device comprises a bottom rod, a anti-swaying member, a pivoting shaft, and a pivoting rod.

The bottom bar includes a body defining a receiving slot. The anti-swaying member is disposed in the receiving groove, and includes a top surface, a bottom surface, and a pivoting groove extending through the top and bottom surfaces. The pivoting groove has a small diameter section adjacent to the top surface and a large diameter section adjacent to the bottom surface, and the diameter of the small diameter section is smaller than the diameter of the large diameter section.

The pivoting shaft is disposed in the radial direction of the bottom rod and the pivoting slot, and is located in the large diameter section.

The pivoting rod includes a fulcrum end for mounting the pivoting shaft, a oscillating end opposite to the fulcrum end, and a limiting section extending from the fulcrum end toward the oscillating end, wherein the The pivoting rod is switchable between a pressing position and a non-pressing position, wherein the limiting section of the pivoting rod is firmly clamped to the small diameter section of the anti-swaying member, When the position is pressed, the limiting section of the pivoting rod is away from the small diameter section.

The utility model has the advantages that the limiting portion of the pivoting rod can be firmly clamped on the small diameter section of the anti-swaying member, thereby reducing the shaking amplitude and preventing annoying abnormal sound generation. the goal of. In addition, the pivoting groove of the anti-swaying member has the design of the large diameter section, and can also contribute to improving the smoothness of the novel pivoting.

Another object of the present invention is to provide a cane chair having a sway prevention pivoting device.

Therefore, the novel cane chair with the anti-sway pivoting device comprises a main pole, a positioning unit, at least one anti-sway pivoting device as described above, and a riding unit.

The main rod includes a grip end and a support end opposite to the grip end.

The positioning unit is disposed on the main rod and located between the support end and the holding end. The positioning unit includes a connecting seat adjacent to the holding end, a foot fixing seat adjacent to the supporting end, and at least one connecting rod pivotally connected to the connecting seat. Each connecting rod has a pivoting end portion and a movable end portion disposed in opposite directions, and the pivoting end portion of each connecting rod can be positioned relative to the main rod by the connecting seat.

The top of the bottom rod of each anti-sway pivoting device is pivotally connected to the movable end of each connecting rod, and the swinging end of the pivoting rod of each anti-swaying pivoting device is pivotally connected to the foot And the swaying end of each swaying pivoting device can be positioned relative to the main rod by the foot fixing seat.

The seating unit includes a seat fixing seat disposed on the main pole between the connecting seat and the holding end, and a riding board pivotally connected to the seat fixing seat, wherein the anti-sway pivoting The cane chair of the device can be switched between an unfolded state and a collapsed state. In the unfolded state, the ride plate of the ride unit is at an angle with the main bar, and the pivot of each anti-sway pivot device The post is located at the pressing position, and in the folded state, the ride plate of the ride unit is brought toward the main rod, and the pivot rod of each anti-sway pivoting device is located at the non-compressed position.

The utility model has the function of the cane chair with the anti-sway pivoting device, and the novel can effectively reduce the amplitude of the shaking of the present invention by the anti-sway pivoting device, and can further avoid the occurrence of annoying abnormal sound.

Referring to FIG. 3 and FIG. 7 , an embodiment of the cane chair having the anti-sway pivoting device includes a main pole 2 , a positioning unit 3 , and two anti-sway pivoting Device 4, and a ride unit 5.

The main rod 2 includes a grip end 21 and a support end 22 opposite to the grip end 21.

The positioning unit 3 is disposed on the main rod 2 and located between the supporting end 22 and the holding end 21 . The positioning unit 3 includes a connecting base 31 adjacent to the holding end 21, a foot fixing base 32 adjacent to the supporting end 22, and two connecting rods 33 respectively pivotally connected to the connecting base 31. Each of the connecting rods 33 has a pivoting end portion 331 and a movable end portion 332 disposed in opposite directions. The pivoting end portion 331 of each connecting rod 33 can be positioned relative to the main rod 2 by the connecting seat 31. .

Referring to FIG. 4 to FIG. 6 , each anti-sway pivoting device 4 includes a bottom rod 41 , a anti-swaying member 42 , a pivoting shaft 43 , a pivoting rod 44 , and an auxiliary anti-swaying member 45 .

The bottom rod 41 includes a body 412 defining a receiving groove 411 having a top portion 413 and a bottom portion 414 disposed in opposite directions.

The anti-swaying member 42 is plugged in the receiving groove 411 and interposed between the top portion 413 and the bottom portion 414. The anti-swaying member 42 includes a top surface 421, a bottom surface 422, two inner side surfaces 423 oppositely disposed and respectively engaging the top and bottom surfaces 421, 422, and one of the inner side surfaces 423 protruding toward the other A bump 424 is disposed, and a pivoting groove 425 is formed through the top and bottom surfaces 421 and 422. In the present embodiment, the top surface 421 of the anti-swaying member 42 faces the top portion 413 of the body 412, and the bottom surface 422 of the anti-swaying member 42 faces the bottom portion 414 of the body 412.

The pivoting groove 425 has a small diameter section 426 adjacent to the top surface 421 and a large diameter section 427 adjacent to the bottom surface 422. The diameter D1 of the small diameter section 426 is smaller than the diameter D2 of the large diameter section 427, such as Figure 10 shows. The pivoting shaft 43 is radially disposed on the bottom rod 41 and the pivoting groove 425 and is located in the large diameter section 427. In this embodiment, the large diameter section 427 of the pivoting groove 425 can be tapered to the small diameter section 426.

The pivoting rod 44 includes a fulcrum end 441 for mounting the pivoting shaft 43 , a oscillating end 442 opposite to the fulcrum end 441 , and a fulcrum extending from the fulcrum end 441 toward the oscillating end 442 . Limit segment 443. In this embodiment, the pivoting lever 44 further includes a first side 444 that can be abutted by the protrusion 424 and a second side 445 opposite to the first side 444.

The auxiliary anti-swaying member 45 is disposed on the top portion 413 of the bottom rod 41 and includes a pressure receiving surface 451 for the second side surface 445 of the pivot rod 44 to abut.

The pivot rod 44 is switchable between a compression position (shown in Figure 5) and a non-compressed position (shown in Figure 6). In the pressing position, the pivoting rod 44 can be disposed on the top surface 421 of the anti-swaying member 42 , and the limiting portion 443 of the pivoting rod 44 is firmly clamped to the anti-swaying member 42 . More preferably, the protrusion 424 firmly abuts the pivoting rod 44 in a direction opposite to the protrusion 424. The second side 445 of the pivoting rod 44 is also firmly positioned on the small portion 426. The pressure receiving surface 451 of the auxiliary anti-swaying member 45 can prevent swaying and avoid annoying noise; in the non-pressing position, the pivoting rod 44 can be disposed on the bottom surface 422 of the anti-swaying member 42. And the limiting section 443 of the pivoting rod 44 is away from the small diameter section 426. It should be noted that after the pivot rod 44 is disengaged from the small diameter section 426, the smoothness of the pivoting can be further improved due to the reduction of the frictional resistance.

Referring to FIG. 3 and FIG. 7, the top portion 413 of the bottom rod 41 of each anti-sway pivoting device 4 is pivotally connected to the movable end portion 332 of each connecting rod 33, and the pivot of each anti-sway pivoting device 4 The swinging end portion 442 of the post 44 is pivotally connected to the foot fixing base 32, and the swinging end portion 442 of each anti-sway pivoting device 4 can be positioned relative to the main rod 2 by the foot fixing base 32. .

The seating unit 5 includes a seat fixing base 51 disposed between the connecting base 31 and the holding end 21, a riding board 52 pivotally connected to the seat fixing base 51, and two The two ends are respectively pivotally connected to the folding lever 53 between the riding board 52 and the connecting seat 31. The board 53 has a main plate portion 521 and two side plate portions 522 pivotally connected to the main plate portion 521 . The folding levers 53 are respectively pivotally connected to the side plate portions 522 . It is worth mentioning that the number of the folding levers 53 of the riding unit 5 can also be one, so that the same effect can be achieved.

In this embodiment, the cane chair 100 having the anti-sway pivoting device further includes a linkage unit 6 including two foot linkage rods 61 respectively connected to the chair fixing base 51 and the connecting rods 33. And two are respectively connected to the chair fixing base 51 and the chair linkage rod 62 of the folding levers 53. It is worth mentioning that the number of the foot linkage rods 61 of the linkage unit 6, the number of the chair linkage rods 62 of the linkage unit 6, the number of the connection rods 33 of the positioning unit 3, and the number of the anti-sway pivoting devices 4 can correspond to each other. The ground is one, so you can achieve the same effect.

Referring to FIGS. 7-9, the cane chair 100 having the anti-sway pivoting device can be switched between an unfolded state and a collapsed state.

In the unfolded state, the riding plate 52 of the riding unit 5 is at an angle with the main rod 2, and the pivoting rod 44 of each anti-swaying pivoting device 4 is located at the pressing position, and supports the main rod 2 obliquely. Standing on the ground.

When the present invention is to be operated from the unfolded state to the collapsed state, the chair fixing base 51 only needs to slide along the main rod 2 to the holding end 21, and the linkage unit 6 can be used to drive each collection. The folding rod 53 and each of the connecting rods 33, the connecting seat 31 of the positioning unit 3 and the foot fixing base 32 can also slide along the main rod 2, respectively. In detail, when each of the folding levers 33 is pivoted upward with the connecting seat 31 as a pivot point, each of the folding levers 53 is slid on the back rail (not shown) of the corresponding side plate portion 522. The corresponding side plate portion 522 is rotated downward to gradually close to the main rod 2, and each connecting rod 33 further drives each anti-sway pivoting device 4 toward the main rod 2 to gradually close together.

Finally, in the collapsed state, the ride plate 52 of the ride unit 5 is brought toward the main rod 2, and the pivot rod 44 of each anti-sway pivoting device 4 is located at the non-compressed position. It should be noted that the anti-swaying member 42 of each anti-swaying pivoting device 4 has the design of the large diameter section 427, which can help reduce the friction between each pivoting rod 44 and the anti-swaying member 42. The resistance helps to re-expand the cane chair 100 having the anti-sway pivoting device from the collapsed state to the deployed state.

Through the above description, the advantages of the new cane chair 100 with the anti-sway pivoting device can be summarized as follows:

The cane chair 100 having the anti-sway pivoting device can be stably clamped to the small diameter section of the anti-sway member 42 by the pivoting rod 44 of each of the anti-sway pivoting devices 4 426, thereby effectively reducing the amplitude of the sway during riding of the present invention, and further avoiding annoying abnormal sound generation.

2. The anti-swaying member 42 of each anti-sway pivoting device 4 of the present invention also has the design of the large diameter section 427, and the pivoting rod 44 can be lowered after being separated from the small diameter section 426. The frictional resistance improves the smoothness of the pivoting process, that is, the present invention also effectively prevents the existing side faces 141 of the plug member 14 of the cane chair 1 from being pressed against the pivoting lever 133, resulting in It is difficult to carry out or unfavorable collapse.

In summary, the novel anti-sway pivoting device and the cane chair with the anti-sway pivoting device can indeed achieve the purpose of the present invention.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

2‧‧‧ main pole
427‧‧‧ Large diameter section
21‧‧‧Handheld
43‧‧‧ pivot shaft
22‧‧‧Support
44‧‧‧ pivot rod
3‧‧‧ Positioning unit
441‧‧‧ fulcrum end
31‧‧‧Connecting Block
442‧‧‧Swing end
32‧‧‧foot fixed seat
443‧‧‧Limited paragraph
33‧‧‧ Connecting rod
444‧‧‧ first side
331‧‧‧ pivot end
445‧‧‧ second side
332‧‧‧ activities end
45‧‧‧Auxiliary anti-swaying parts
4‧‧‧Anti-sway pivoting device
451‧‧‧pressured surface
41‧‧‧ bottom pole
5‧‧‧Riding unit
411‧‧‧ accommodating slot
51‧‧‧Seat holder
412‧‧‧ body
52‧‧‧ ride board
413‧‧‧ top
521‧‧‧Motherboard Department
414‧‧‧ bottom
522‧‧‧Side plate department
42‧‧‧Anti-swaying parts
53‧‧‧ folding bar
421‧‧‧ top surface
6‧‧‧ linkage unit
422‧‧‧ bottom
61‧‧‧ foot linkage
423‧‧‧ inside
62‧‧‧ Chair linkage
424‧‧‧Bumps
100‧‧‧Cane chair with anti-sway pivoting device
425‧‧‧ pivot slot
D1‧‧‧ path width
426‧‧‧Small path
D2‧‧‧ path width

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view illustrating an embodiment of a conventional cane chair; FIG. 2 is a schematic view showing the existing cane There is a gap between a pivotal lever of the chair and a plug member located in the lower leg; FIG. 3 is a perspective view showing an embodiment of the cane chair with the anti-sway pivoting device; FIG. FIG. 5 is a schematic view showing a pivotal lever of the anti-sway pivoting device of the embodiment in a pressing position; FIG. 6 is a schematic view illustrating The pivoting lever of the anti-sway pivoting device of the embodiment is located at a non-pressing position; FIG. 7 is a side view illustrating the embodiment in an unfolded state; FIG. 8 is a side view illustrating one of the embodiments FIG. 9 is a side view showing the embodiment in a folded state; and FIG. 10 is a partially enlarged view showing the defense of the embodiment. One of the swaying devices The diameter of a small diameter section of the pivoting groove is smaller than the diameter of the large diameter section.

4‧‧‧Anti-sway pivoting device

41‧‧‧ bottom pole

411‧‧‧ accommodating slot

412‧‧‧ body

413‧‧‧ top

414‧‧‧ bottom

42‧‧‧Anti-swaying parts

421‧‧‧ top surface

422‧‧‧ bottom

423‧‧‧ inside

424‧‧‧Bumps

425‧‧‧ pivot slot

426‧‧‧Small path

427‧‧‧ Large diameter section

43‧‧‧ pivot shaft

44‧‧‧ pivot rod

441‧‧‧ fulcrum end

442‧‧‧Swing end

443‧‧‧Limited paragraph

444‧‧‧ first side

445‧‧‧ second side

45‧‧‧Auxiliary

451‧‧‧pressured surface

Claims (10)

An anti-swaying pivoting device comprises: a bottom rod comprising a body defining a receiving groove; a rocking preventing member plugged in the receiving groove, comprising a top surface, a bottom surface, and a top and bottom surface a pivoting groove, the pivoting groove has a small diameter section adjacent to the top surface and a large diameter section adjacent to the bottom surface, the diameter of the small diameter section is smaller than the diameter of the large diameter section; a pivoting axis, Radially disposed on the bottom rod and the pivoting groove, and located in the large diameter section; and a pivoting rod, comprising a pivot point for mounting the pivot shaft, and a swing end opposite to the end of the pivot point And a limiting section extending from the end of the fulcrum toward the oscillating end, wherein the pivoting lever is switchable between a pressing position and a non-compressing position, and in the pressing position, the pivoting lever The limiting section is firmly clamped to the small diameter section of the anti-swaying member. In the non-pressing position, the limiting section of the pivoting lever is away from the small diameter section. The anti-sway pivoting device of claim 1, wherein the large diameter section of the pivoting groove is tapered to the small diameter section. The anti-swaying pivoting device of claim 2, wherein the pivoting lever is disposed on the top surface of the anti-swaying member when the pivoting lever is in the pressing position, and the pivoting lever is in the non-compressing position The pivoting rod can be disposed on the bottom surface of the anti-swaying member. The anti-sway pivoting device of claim 3, wherein the body of the bottom bar has a top portion and a bottom portion disposed in a reverse direction, and the anti-swaying member is interposed between the top portions The top surface of the anti-swaying member faces the top of the body, and the bottom surface of the anti-swaying member faces the bottom of the body. The anti-swaying pivoting device of claim 4, wherein the anti-swaying member further comprises two inner side surfaces disposed opposite to each other and respectively engaging the top and bottom surfaces, and one of the inner side surfaces facing the other The protruding protrusion further includes a first side that can be abutted by the protrusion. The swaying pivoting device of claim 5, wherein the pivoting lever further includes a second side opposite to the first side, the swaying pivoting device further comprising a top portion disposed on the bottom rod The auxiliary anti-swaying member includes a pressure receiving surface for the second side of the pivoting rod to abut. A cane chair with a swaying pivoting device, comprising: a main rod comprising a holding end and a supporting end opposite to the holding end; a positioning unit disposed on the main rod and located at the supporting end and the grip Between the holding ends, including a connecting seat adjacent to the holding end, a foot fixing seat adjacent to the supporting end, and at least one connecting rod pivotally connected to the connecting seat, each connecting rod has a reverse setting a pivoting end portion and a movable end portion, wherein the pivoting end portion of each connecting rod can be positioned relative to the main rod by the connecting seat; at least one of claims 4 to 6 a swaying pivoting device, the top of the bottom bar of each swaying pivoting device being pivotally connected to the movable end of each connecting rod, the swinging of the pivoting bar of each swaying pivoting device The end portion is pivotally connected to the foot fixing seat, and the swinging end portion of each anti-sway pivoting device can be positioned relative to the main rod by the foot fixing seat; and a seating unit includes a main body disposed on the main a seat fixing seat between the connecting seat and the holding end, and a riding board pivotally connected to the seat fixing seat, wherein the cane chair with the anti-sway pivoting device can be in an unfolded state Converting between a collapsed state, in which the ride plate of the ride unit is at an angle with the main lever, and the pivot lever of each anti-sway pivoting device is located at the pressing position, In the collapsed state, the ride plate of the ride unit is brought toward the main pole, and the pivot rod of each anti-sway pivoting device is located at the non-compressed position. The cane chair with the anti-sway pivoting device according to claim 7, wherein the seat fixing seat of the riding unit is slidable along the main rod, and the connecting seat of the positioning unit and the foot fixing base are respectively Can slide along the main pole. The cane chair having the anti-sway pivoting device according to claim 8, wherein the riding plate has a main plate portion, and two side plate portions respectively pivotally connected to the main plate portion, the seating unit further comprising at least one end respectively A folding lever pivotally connected between the riding board and the connecting seat. The cane chair with the anti-sway pivoting device according to claim 9, further comprising a linkage unit, the linkage unit comprising at least one foot linkage rod connected to the chair fixing base and each connecting rod, and at least one connection The chair fixing bracket and the chair of each folding lever are linked to the lever.