CN115721084A - Walking stick chair with unfolding positioning device - Google Patents

Abstract

The utility model provides a walking stick chair of utensil expansion positioner, contains supporting element, slide, seat unit and positioning unit, the supporting element includes main tributary vaulting pole and two at least accessory support poles, the slide can the slip cover be located the main tributary vaulting pole, the seat unit receives the slide even kinetic energy with for the main tributary vaulting pole close the receipts close state with for the main tributary vaulting pole is expanded and be the crossing expansion state of angle, positioning unit including set up in the card embedding portion of main tributary vaulting pole to and set up in the block portion of slide, the seat unit is when closing the state, the card embedding portion with the block portion separates from each other, the seat unit is when expanding the state, the card embedding portion with the block portion nests mutually. The positioning unit can be used for achieving the purpose of unfolding and positioning.

Description

Walking stick chair with unfolding positioning device

Technical Field

The invention relates to a chair, in particular to a walking stick chair with an unfolding positioning device.

Background

The old or the person who is inconvenient to move can not walk continuously as normal people due to decline and insufficiency of physiological functions, so the person needs to stop having a proper rest in the walking process and can walk again after physical strength is recovered. Accordingly, there are related manufacturers who develop related appliances that can be operated in a seating or auxiliary supporting state according to the user's needs.

For example, taiwan certificate number I480038 patent "walking stick chair" includes a main rod, a sitting unit, a bottom limit unit, a supporting unit and a link unit, wherein the sitting unit has a top sliding seat capable of sliding along the main rod, and a chair panel pivotally connected to the top sliding seat, when the top sliding seat is operated to slide along the main rod, the sitting unit is linked to the link unit, the link unit is linked to the supporting unit, so that the supporting unit can be operated from a folded state to an unfolded state, and when the supporting unit is in the unfolded state, the chair panel and the main rod form an included angle and can be seated.

Although this cane chair is versatile, the applicant has developed an innovative design in order to provide better stability when the support unit is operated in the deployed state.

Disclosure of Invention

The invention aims to provide a crutch chair with an unfolding positioning device, which has a simple structure and can provide better stability.

The invention discloses a crutch chair with an unfolding positioning device, which comprises a supporting unit, a sliding seat, a chair surface unit and a positioning unit, wherein the supporting unit comprises a pivot seat, a main supporting rod and at least two auxiliary supporting rods pivoted with the main supporting rod, the main supporting rod and the auxiliary supporting rods are pivoted on the pivot seat, the sliding seat is slidably sleeved on the main supporting rod, the chair surface unit can be switched between a folded state close to the main supporting rod and an unfolded state which is unfolded relative to the main supporting rod and intersected at an angle by the linkage of the sliding seat, the positioning unit comprises an embedding part arranged on the main supporting rod and a clamping part arranged on the sliding seat, the embedding part and the clamping part are in concave-convex complementation, the embedding part and the clamping part are separated when the chair surface unit is in the folded state, and the embedding part and the clamping part are nested when the chair surface unit is in the unfolded state.

According to the walking stick chair with the unfolding positioning device, the embedding and clamping part of the positioning unit is in a short cylindrical shape and is convexly arranged on the main support rod, the sliding seat is also provided with a bottom edge and a top edge opposite to the bottom edge, and the clamping part is concavely arranged from the bottom edge to the top edge and is in a groove shape.

The walking stick chair with the unfolding positioning device is characterized in that the clamping part is wide in inner part and narrow in outer part, and is provided with a circular groove section with a central angle larger than 180 degrees and a limiting section adjacent to the bottom edge, and the width of the limiting section is smaller than the diameter of the circular groove section.

The walking stick chair with the unfolding positioning device is characterized in that the sliding seat is also provided with at least one elastic groove which is arranged on one side of the clamping part and is concavely arranged on the bottom edge, and the elastic groove allows the limiting section to generate elastic deformation with width change.

The seat unit of the walking stick chair with the unfolding positioning device comprises a seating group connected to the sliding seat and a connecting rod group connected to the pivot seat and linked with the seating group, wherein the sliding seat and the connecting rod group can enable the seating group to be switched between a folding state and an unfolding state, wherein the folding state is that the seating group is closed relative to the main supporting rod, and the unfolding state is that the seating group is unfolded relative to the main supporting rod.

The crutch chair with the unfolding positioning device comprises a crutch chair with the unfolding positioning device, wherein a seating group of a chair surface unit is provided with a main supporting piece pivoted on a sliding seat, a pair of side supporting pieces respectively pivoted on the main supporting piece and respectively supported by an auxiliary supporting rod, and a guiding part arranged on the main supporting piece, the main supporting piece is provided with a main supporting surface, each side supporting piece is provided with an inner side edge adjacent to the main supporting piece, an outer side edge opposite to the inner side edge, a side supporting surface extending from the inner side edge to the outer side edge, a side bottom surface opposite to the side supporting surface, and a braked block corresponding to the guiding part, the braked block is provided with a braked surface intersecting with the side bottom surface, the braked surface is obliquely arranged, the crutch chair with the unfolding positioning device also comprises a brake unit, the brake unit corresponds to the braked block, is movably connected to the guiding part and comprises two brake parts, and the brake unit is subjected to the brake unit, so that the brake unit can enable the brake part and the braked surface to be in linkage with the braked surface, and the side supporting surface to be in a linkage state that the folding state of the main supporting surface and the main supporting surface are arranged in parallel with the folding state.

In the crutch chair with the unfolding positioning device, one side support of the seat unit is provided with a buckle plate which is arranged on the outer side edge and is provided with a buckle, the other side support is provided with a buckle ring which is arranged on the outer side edge and is provided with a buckle hole, and when the seat unit is in a folding state, the buckle hole of the buckle ring is mutually buckled with the buckle of the buckle plate.

The invention has the beneficial effects that: when the seat unit is in the unfolding state, the embedding and clamping parts are mutually nested, so that the seat unit can be stably unfolded and positioned, and the safety of sitting is improved.

Drawings

FIG. 1 is a perspective assembly view of one embodiment of a walking stick chair with an extended positioning device in accordance with the present invention;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

FIG. 3 is an exploded perspective view of this embodiment;

FIG. 4 is an exploded perspective view of a slide and a detent unit of the embodiment;

FIG. 5 is a schematic plan view of the embodiment;

FIG. 6 is an operational action diagram of the embodiment;

FIG. 7 is a perspective view of the embodiment, illustrating the supporting unit and the seat unit in a deployed state;

FIG. 8 is a schematic bottom perspective view of the embodiment; and

fig. 9 is a schematic plan view of fig. 8.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 1 to 3, an embodiment of a walking stick chair with a deployable positioning device of the present invention includes a supporting unit 10, a sliding seat 20, a seat unit 30, an actuating unit 40, and a positioning unit 50.

The supporting unit 10 includes a pivot 11, a main supporting rod 12 pivoted to the pivot 11, and two auxiliary supporting rods 13 pivoted to the pivot 11 and pivoted to the main supporting rod 12. The pivot base 11 has a pivot 111 disposed along an axis L, three through holes 112 surrounding the pivot 111, and three pins 113 penetrating the through holes 112 and facing the axis L. The main supporting rod 12 has a length greater than that of the auxiliary supporting rods 13, the main supporting rod 12 has a first bottom end 121, a first top end 122 opposite to the first bottom end 121, and a handle 123 mounted on the first top end 122, and each auxiliary supporting rod 13 has a second bottom end 131 and a second top end 132 opposite to the second bottom end 131.

The sliding base 20 has a sleeve 21 slidably sleeved on the main supporting rod 12, a pivot block 22 protruding from one side of the sleeve 21, and a pivot ear 23 protruding from the other side of the sleeve 21. The sleeve 21 has a bottom edge 211, a top edge 212 opposite to the bottom edge 211, and two elastic slots 213 recessed from the bottom edge 211.

The seat unit 30 includes a seating group 301 connected to the slide base 20, and a linkage 302 connected to the pivot base 11 and linked by the seating group 301. The sitting group 301 has a main support 31 connected to the slide 20, two side supports 32 pivotally connected to two sides of the main support 31, and a guide portion 33 disposed on the main support 31.

The main supporting member 31 has a first end 311 adjacent to the main supporting rod 12, a second end 312 opposite to the first end 311 along a first axial direction X, a pair of long side edges 313 connected between the first end 311 and the second end 312, a main supporting surface 314 extending from the first end 311 to the second end 312, a main bottom surface 315 opposite to the main supporting surface 314, a pair of pivot plates 316 disposed at the first end 311 and pivotally connected to the pivot block 22, a plurality of first pivot tubes 317 disposed at the long side edges 313, respectively, and a guide rail 318 extending along the first axial direction X. The guide rail 318 is recessed from the main bottom surface 315 and has a shape with a wide inner portion and a narrow outer portion (the cross section of the guide rail 318 perpendicular to the first axial direction X is in an inverted T shape).

Each side supporting member 32 has an inner side edge 321 adjacent to one of the long side edges 313 of the main supporting member 31, an outer side edge 322 opposite to the inner side edge 321, a side supporting surface 323 extending from the inner side edge 321 to the outer side edge 322, a side bottom surface 324 opposite to the side supporting surface 323, a stopper 34 adjacent to the inner side edge 321 and corresponding to the guiding portion 33, a plurality of second pivoting pipes 326 respectively disposed at the inner side edge 321 and pivotally connected to the first pivoting pipes 317, and a stopper 327 adjacent to the outer side edge 322 and opposite to the side supporting surface 323, wherein the stopper 327 is L-shaped. The locked block 34 has a locked surface 341 intersecting with the bottom surface 324, a limiting surface 342 intersecting with the locked surface 341, and a guiding surface 343 intersecting with the locked surface 341, wherein the limiting surface 342 and the guiding surface 343 are substantially parallel to the first axial direction X, the locked block 34 is adjacent to the first end 311 of the main support 31, and the locked surface 341 is in a slope shape. In addition, one of the side supports 32 has a buckle plate 345 disposed at the outer side edge 322 and having a buckle 344, and the other side support 32 has a buckle ring 347 disposed at the outer side edge 322 and having a buckle hole 346, and when the seat unit 30 is in the collapsed state, the buckle hole 346 of the buckle ring 347 and the buckle 344 of the buckle plate 345 are buckled with each other.

The guiding portion 33 is disposed between the long side edges 313 and extends along the first axial direction X, the guiding portion 33 is disposed between the main supporting surface 314 and the main bottom surface 315 and parallel to the main supporting surface 314, and the guiding portion 33 corresponds to the first end 311.

The linkage 302 has a sliding block 35 capable of sliding along the guiding rail 318, a first link 36 pivotally connected between the sliding block 35 and the pivot member 111, and a second link 37 pivotally connected between the first link 36 and the pivot ear 23 of the sliding base 20.

Referring to fig. 4, the braking unit 40 extends along a second axial direction Y perpendicular to the first axial direction X, corresponds to the braked block 34, is movably connected to the guiding portion 33, and includes a pivotal guiding member 41 movably penetrating through the guiding portion 33, a pair of braking plates 42 respectively connected to both sides of the pivotal guiding member 41 along the second axial direction Y, a pair of pivotal plates 43 respectively connected to the braking plates 42 and pivotally connected to the sliding base 20, and a pair of pivotal portions 44 respectively disposed on the pivotal plates 43 and pivotally connected to the pivotal block 22. The pivot guide 41 is rod-shaped. The dragging plates 42 each have a dragging portion 421 disposed at a side edge.

The positioning unit 50 includes an embedding portion 51 disposed on the main support rod 12, and an engaging portion 52 disposed on the sliding base 20, the embedding portion 51 and the engaging portion 52 are concave-convex complementary, when the seat unit 30 is in the folded state, the embedding portion 51 and the engaging portion 52 are separated from each other (see fig. 5), when the seat unit 30 is in the unfolded state, the embedding portion 51 and the engaging portion 52 are nested with each other (see fig. 8 and 9). The engaging portion 51 is in a short cylindrical shape and is protruded from the main supporting rod 12 (actually, the engaging portion 51 in this embodiment is riveted on the head of the rivet of the main supporting rod 12), see fig. 4, the engaging portion 52 is recessed from the bottom edge 211 of the sliding base 20 toward the top edge 212 and is in a groove shape, the engaging portion 52 is in a wide-inside and narrow-outside shape and has a circular groove section 521 with a central angle larger than 180 degrees, and a limiting section 522 adjacent to the bottom edge 211, and the width of the limiting section 522 is smaller than the diameter of the circular groove section 521. The elastic groove 213 of the slider 20 allows the stopper 522 to be elastically deformed with a varying width.

For a further understanding of the invention, its role, the technical means employed, and the efficacy attained by its cooperation, it is believed that the invention will be more fully and specifically understood from the following description.

As shown in fig. 1, fig. 2 and fig. 5, when the crutch chair with the unfolding positioning device of the invention is assembled integrally and the seat unit 30 is in the folded state, the main support rod 12 and the auxiliary support rod 13 of the support unit 10 are close to each other and substantially parallel. At this time, the second end 312 of the main support 31 approaches the close state of the pivot base 11, the main support 31 and the side supports 32 are in an inverted U shape around the pivot base 11, and the side support surfaces 323 are disposed at an angle relative to the main support surface 314. At this time, the slide block 35 approaches the first end 311, and the dragging plate 42 is respectively located between the stopped block 34 and the main supporting surface 314. The buckle hole 346 of the buckle 347 is engaged with the hook 344 of the buckle 345, and the main support 31 and the side supports 32 of the seat unit 30 are stably kept in the folded state. At this time, the sliding base 20 approaches the first top end 122 of the main supporting rod 12, and the engaging portion 52 and the engaging portion 51 are separated from each other.

As shown in fig. 6, when the operator pulls the second end 312 of the main support 31 upward and gradually moves the second end 312 away from the pivot base 11, the main support 31 pivots relative to the slide base 20, and the slide base 20 and the braking unit 40 are pivoted, and the pivot guide 41 is slidably inserted into the guide portion 33, the braking unit 40 rotates while translating along the guide portion 33, and the braking portion 421 of the braking plate 42 tilts from the main support surface 314 toward the main bottom surface 315, so that the braking portion 421 of the braking plate 42 obliquely brakes between the braking portion 421 of the braking plate 42 and the braked surface 341, and the braked block 34 is obliquely braked by the braking plate 42, and the entire side support 32 is rotated relative to the main support 31 until the braking portions respectively support against the limiting surfaces, the braked block 34 is positioned along the Y direction of the second support surface 323, and the side support surfaces of the main support 31 are kept in a parallel arrangement with each other side support surface 323, as shown in fig. 8 and 9. At this time, the positioning unit 50 is disposed at the engaging portion 52 of the sliding base 20 and the engaging portion 51 of the main support rod 12 to be nested with each other (see fig. 8), and provides positioning stability of the seat unit 30 with respect to the main support rod 12.

In addition, after the side support 32 is pivoted and unfolded with respect to the main support 31, the side support 32 can be maintained in the unfolded state in which it is arranged in parallel with respect to the main support 31 by the action of the two sides of the detent plate 42 abutting against the limit surfaces 342 of the side support 32, and the side support 32 is not pivoted with respect to the main support 31 at will.

Conversely, when the operator pulls the sliding base 20 to slide upward along the main supporting rod 12 and the second end 312 gradually approaches the pivot base 11, the engaging portion 52 can be easily disengaged from the engaging portion 51 by the elastic groove 213 of the sliding base 20 allowing the width of the limiting segment 522 to change. The state of fig. 1, fig. 2 and fig. 5 can be gradually changed from fig. 8 and fig. 9, and the seat unit 30 can be restored to the folded state, and the second end 312 of the main supporting piece 31 approaches the close state of the pivot seat 11.

The above-mentioned principle of the linkage between the brake unit 40 and the seat unit 30 to generate the folding and unfolding actions is disclosed in taiwan patent certificate No. I736504, so the detailed structure and actions will not be described further.

Therefore, according to the present invention, the engaging portion 51 of the positioning unit 50 is disposed on the main support rod 12, and the engaging portion 52 is disposed on the sliding seat 20, so that when the sliding seat 20 is operated to slide relative to the main support rod 12 and the seat unit 30 is connected to the unfolded state, the engaging portion 51 and the engaging portion 52 are nested with each other, so that the seat unit 30 can be stably positioned relative to the main support rod 12, and safety of sitting can be provided.

In summary, the walking stick chair with the unfolding positioning device of the invention has the advantages of simple overall structure, easy manufacture and assembly, and can generate the unfolding, stabilizing and fixing effects, thus really achieving the purpose of the invention.

Claims (7)

1. The utility model provides a walking stick chair of positioner is expanded to utensil, contains supporting element, slide, seat unit and positioning unit, its characterized in that:

the supporting unit comprises a pivot seat, a main supporting rod and at least two auxiliary supporting rods which are pivoted with the main supporting rod mutually, and the main supporting rod and the auxiliary supporting rods are pivoted on the pivot seat;

the sliding seat is sleeved on the main support rod in a sliding manner;

the seat unit can be switched between a folding state of leaning against the main supporting rod and a unfolding state of unfolding relative to the main supporting rod and crossing at an angle by the linkage of the sliding seat;

the positioning unit comprises an embedding part arranged on the main support rod and a clamping part arranged on the sliding seat, the embedding part and the clamping part are concave-convex complementary, the embedding part and the clamping part are separated from each other when the chair surface unit is in a folding state, and the embedding part and the clamping part are nested with each other when the chair surface unit is in an unfolding state.

2. A walking stick chair with an unfolding positioning device according to claim 1, wherein: the clamping part of the positioning unit is in a short cylindrical shape and is convexly arranged on the main support rod, the sliding seat is further provided with a bottom edge and a top edge opposite to the bottom edge, and the clamping part is from the bottom edge to the top edge, is concavely arranged and is in a groove shape.

3. A walking stick chair with an unfolding positioning device according to claim 2, characterised in that: the clamping part is wide in the inner part and narrow in the outer part, and is provided with a circular groove section with a central angle larger than 180 degrees and a limiting section adjacent to the bottom edge, and the width of the limiting section is smaller than the diameter of the circular groove section.

4. A walking stick chair with an unfolding positioning device according to claim 3, wherein: the sliding seat is also provided with at least one elastic groove which is arranged on one side of the clamping part and is concavely arranged on the bottom edge, and the elastic groove allows the limiting section to generate elastic deformation with width change.

5. A walking stick chair with an unfolding positioning device according to claim 1, wherein: the seat unit comprises a seating group connected to the sliding seat and a connecting rod group connected to the pivot seat and linked by the seating group, and the sliding seat and the connecting rod group can enable the seating group to be switched between a folding state and an unfolding state.

6. A walking stick chair with an unfolding positioning device according to claim 5, characterized in that: the riding group of the chair surface unit is provided with a main supporting piece pivoted to the sliding seat, a pair of side supporting pieces respectively pivoted to the main supporting piece and respectively supported by the auxiliary supporting rods, and a guiding part arranged on the main supporting piece, wherein the main supporting piece is provided with a main supporting surface, each side supporting piece is provided with an inner side edge adjacent to the main supporting piece, an outer side edge opposite to the inner side edge, a side supporting surface extending from the inner side edge to the outer side edge, a side bottom surface opposite to the side supporting surface, and a braking block corresponding to the guiding part, the braking block is provided with a braking surface intersecting with the side bottom surface, the braking surface is obliquely arranged, the walking stick chair with the unfolding positioning device further comprises a braking unit, the braking unit corresponds to the braking block and is movably connected to the guiding part and comprises two braking parts, the braking unit is driven by the chair surface unit, the braking part and the braking surface can be obliquely braked, and the side supporting surface is in a folding state relative to the main supporting surface and is in a parallel switching state relative to the main supporting surface.

7. A walking stick chair with an unfolding positioning device according to claim 6, wherein: one of the side supporting pieces of the seat unit is provided with a buckle plate which is arranged on the outer side edge and is provided with a clasp, the other side supporting piece is provided with a buckle ring which is arranged on the outer side edge and is provided with a buckle hole, and when the seat unit is in a folding state, the buckle hole of the buckle ring is mutually buckled with the clasp of the buckle plate.

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