TWI775584B - crutch chair with deployment positioning device - Google Patents

Abstract

A crutch chair with an unfolding positioning device, comprising a support unit, a slide seat, a seat surface unit and a positioning unit, the support unit includes a main support rod and at least two auxiliary support rods, the slide seat is slidably sleeved On the main support rod, the seat unit is linked by the sliding seat and can switch between a folded state that is close to the main support rod and an unfolded state that is unfolded relative to the main support rod and intersects at an angle, The positioning unit includes an inserting portion disposed on the main support rod, and an engaging portion disposed on the sliding seat. When the seat surface unit is in a folded state, the inserting portion and the engaging portion are separated from each other. When the seat surface unit is in the unfolded state, the inserting portion and the engaging portion are nested with each other. The positioning unit can be used to achieve the purpose of expanding positioning.

Description

crutch chair with deployment positioning device

The present invention relates to a chair, in particular to a crutch chair with a deployment positioning device.

Elderly people or people with inconvenient mobility, due to the decline and insufficiency of physiological functions, their physical strength is not as good as that of ordinary people, so they can continue to walk without interruption, so they need to stop and rest properly during the walking process, and can walk again after the physical strength recovers. Therefore, some relevant manufacturers have developed related appliances that can be operated in a sitting or auxiliary support state according to the needs of users.

For example, the patent case "Crutch Chair" in Taiwan Certificate No. I480038 includes a main rod, a riding unit, a bottom limit unit, a support unit and a link unit, and the riding unit has a top slide that can slide along the main rod. and a seat surface piece pivotally connected to the top slide, when the top slide is operated to slide along the main rod, the ride unit is linked to the link unit and the link unit is linked to the support unit, so that the The support unit is operated from a folded state to an unfolded state. When the support unit is in the unfolded state, the seat part and the main rod form an included angle and can be seated.

Although the crutch chair can achieve multi-purpose use, in order to provide better stability when the support unit is operated in the unfolded state, the applicant has developed an innovative design.

Therefore, an object of the present invention is to provide a crutch chair with a deployment positioning device that is simple in structure and can provide better stability.

Therefore, the crutch chair with the deployment positioning device of the present invention includes a support unit, a sliding seat, a seat surface unit and a positioning unit. The support unit includes a main support rod and at least two auxiliary support rods pivotally connected to the main support rod. The sliding seat is slidably sleeved on the main supporting rod. The positioning unit includes an inserting portion disposed on the main support rod, and An engaging portion disposed on the sliding seat, the inserting portion and the engaging portion are concave-convex complementary, and when the seat surface unit is in the folded state, the inserting portion and the engaging portion are separated from each other, the seat surface When the unit is in the unfolded state, the inserting portion and the engaging portion are nested with each other.

The effect of the present invention is that when the seat surface unit is in the unfolded state, the inserting part and the engaging part are nested with each other, so that the seat surface unit can have a stable unfolding and positioning purpose, and the safety of riding can be improved.

Referring to FIGS. 1 to 3 , an embodiment of a crutch chair with an unfolded positioning device of the present invention includes a supporting unit 10 , a sliding seat 20 , a seat surface unit 30 , a latching unit 40 and a positioning unit 50 .

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

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

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

The main support member 31 has a first end 311 adjacent to the main support rod 12 , a second end 312 opposite to the first end 311 along a first axis X, and a pair of connected to the first end 311 The long side edge 313 between the second end 312, a main support surface 314 extending from the first end 311 to the second end 312, a main bottom surface 315 opposite to the main support surface 314, a pair of A pivot plate 316 at the first end 311 and pivotally connected to the pivot block 22, a plurality of first pivot pipes 317 respectively disposed on the long side edges 313, and a guide rail 318 extending along the first axis X . The guide rail 318 is recessed from the main bottom surface 315 and has a shape that is wide inside and narrow outside (the cross section of the guide rail 318 perpendicular to the first axis X is an inverted T shape).

Each side support 32 has an inner edge 321 adjacent to one of the long side edges 313 of the main support 31 , an outer edge 322 opposite to the inner edge 321 , and an outer edge 322 extending from the inner edge 321 to the outer edge A side support surface 323 of the 322, a side bottom surface 324 opposite to the side support surface 323, a detent block 34 adjacent to the inner edge 321 and corresponding to the guide portion 33, most of which are respectively disposed on the inner edge 321 and are connected with the inner edge 321. The first pivot tubes 317 are pivotally connected to each other, and a second pivot tube 326 , and a blocking block 327 adjacent to the outer edge 322 and opposite to the side support surface 323 , and the blocking block 327 is L-shaped. The detent block 34 has a detent surface 341 intersecting with the side bottom surface 324 , a limiting surface 342 intersecting with the detent surface 341 , and a guide surface intersecting with the detent surface 341 343 , the limiting surface 342 and the guiding surface 343 are substantially parallel to the first axial direction X, the restraining block 34 is adjacent to the first end 311 of the main support 31 , and the restraining surface 341 is inclined. In addition, one of the supporting members 32 has a buckle plate 345 disposed on the outer edge 322 and having a hook 344 , and the other supporting member 32 has a buckle disposed on the outer edge 322 and having a buckle hole 346 . 347 , when the seat unit 30 is in the folded state, the buckle hole 346 of the buckle ring 347 and the buckle hook 344 of the buckle plate 345 are buckled with each other.

The guide portion 33 is in the shape of a guide rail and is disposed between the long side edges 313 and extends corresponding to the first axis X. The guide portion 33 is interposed between the main support surface 314 and the main bottom surface 315 and Parallel to the main support surface 314 , the guide portion 33 corresponds to the first end 311 .

The link assembly 302 has a slider 35 slidable along the guide rail 318 , a first link 36 pivotally connected between the slider 35 and the pivot member 111 , and a first link pivotally connected to the first link The second link 37 between the rod 36 and the pivot ear 23 of the slide 20 .

Referring to FIG. 4 , the detent unit 40 extends along a second axis Y perpendicular to the first axis X, corresponds to the detent blocks 34 and is movably connected to the guide portion 33 , and includes A pivot guide 41 movably penetrated through the guide portion 33 , a pair of detent plates 42 respectively connected to both sides of the pivot guide 41 along the second axial direction Y, a pair of respectively connected to the The detent plate 42 is pivotally connected to the pivot plate 43 of the sliding sleeve 20 , and a pair of pivot portions 44 respectively disposed on the pivot plates 43 and pivotally connected to the pivot block 22 . The pivot guide 41 is rod-shaped. Each of the detent plates 42 has a detent portion 421 disposed on the side edge.

The positioning unit 50 includes an engaging portion 51 disposed on the main support rod 12 and an engaging portion 52 disposed on the sliding seat 20 . The engaging portion 51 and the engaging portion 52 are concave-convex complementary, and the When the seat unit 30 is in the folded state, the inserting 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 inserting portion 51 and the engaging portion 52 are separated from each other. nested within each other (see Figures 8 and 9). The inserting portion 51 is in the shape of a short cylinder and protrudes from the main support rod 12 (actually, the inserting portion 51 in this embodiment is riveted to the head of the pull stud of the main support rod 12 ). See 4, the engaging portion 52 is recessed from the bottom edge 211 of the sliding seat 20 toward the top edge 212 and is in the shape of a groove, the engaging portion 52 is wide inside and narrow outside, and has an angle greater than 180 degrees and a limiting segment 522 adjacent to the bottom edge 211 , the width of the limiting segment 522 is smaller than the diameter of the circular groove 521 . The elastic groove 213 of the sliding seat 20 allows the limiting section 522 to produce elastic deformation of varying width.

In order to further understand the functions produced by the cooperation of the various elements of the present invention, the technical means used, and the expected effects, the following descriptions will be given.

As shown in FIG. 1 , FIG. 2 and FIG. 5 , when the crutch chair with the unfolded positioning device of the present invention is applied to the crutch chair as a whole assembled, and the seat surface unit 30 is in the folded state, the main part of the support unit 10 is The support rod 12 and the auxiliary support rods 13 abut against each other and are substantially parallel. At this time, the second end 312 of the main support 31 is close to the abutting 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 . The equal side support surface 323 is arranged at an angle with respect to the main support surface 314 . At this time, the slider 35 approaches the first end 311 , and the detent plates 42 are located between the detent blocks 34 and the main support surface 314 respectively. The buckle hole 346 of the buckle 347 and the buckle hook 344 of the buckle plate 345 are engaged with each other, and the main support member 31 and the side support member 32 of the seat unit 30 are stably kept in a collapsed state. At this time, the sliding seat 20 approaches the first top end 122 of the main support rod 12 , and the inserting portion 51 and the engaging portion 52 are separated from each other.

As shown in FIG. 6 , first unfasten the buckle hole 346 of the buckle 347 and the buckle hook 344 of the buckle plate 345 , when the operator pulls the second end 312 of the main support 31 upward, and makes the first When the two ends 312 gradually move away from the pivot base 11 , the main support member 31 pivots relative to the sliding base 20 , and the sliding base 20 is pivotally connected to the detent unit 40 , and the pivot guide member 41 slidably passes through the base 20 . Due to the function provided in the guide portion 33 , the detent unit 40 also rotates while translating along the guide portion 33 , and the detent portions 421 of the detent plates 42 move toward the main support surface 314 toward the The main bottom surface 315 is tilted up, causing the detent portions 421 of the detent plates 42 to act obliquely with the detent surfaces 341 , and the detent blocks 34 are affected by the detent plates 42 . Obliquely actuating, and linking the entire side support 32 to rotate relative to the main supporting member 31 until, as shown in FIG. 8 and FIG. , the detent blocks 34 are located on both sides of the detent plates 42 along the second axial direction Y, and the side support surfaces 323 are maintained in a parallel and unfolded state relative to the main support surface 314 . At this time, the engaging portion 52 of the positioning unit 50 disposed on the sliding seat 20 and the engaging portion 51 disposed on the main support rod 12 are nested with each other (see FIG. 8 ), and provide the seat surface unit 30 relative to the Positioning stability of the main support rod 12 .

In addition, after the side supports 32 are pivoted and unfolded relative to the main support 31 , the two sides of the detent plates 42 are used to support the limit surfaces 342 of the side supports 32 . , the side supports 32 can be kept in the unfolded state arranged side by side relative to the main support 31 , and the side supports 32 will not pivot relative to the main support 31 at will.

On the contrary, when the operator pulls the sliding seat 20 to slide upward along the main support rod 12 and makes the second end 212 gradually approach the pivot seat 11 , the elastic groove 213 of the sliding seat 20 allows the limit The segment 522 produces an elastic deformation effect of changing width, which can also make the engaging portion 52 easily disengage from the inserting portion 51 . 8 and 9 gradually change to the state shown in FIGS. 1 , 2 and 5 , and the seat unit 30 can be restored to the folded state, and the second end 312 of the main support 31 is close to the pivot. The abutment state of the seat 11.

The above-mentioned principle of using the actuating unit 40 to link the seat surface unit 30 to generate the folding and unfolding action has been disclosed in Taiwan Patent Certificate No. I736504, so the detailed structure and action are not further explained.

Therefore, in the present invention, the engaging portion 51 of the positioning unit 50 is arranged on the main support rod 12, and the engaging portion 52 is arranged on the sliding seat 20, so that when the sliding seat 20 is operated to slide relative to the main supporting rod 12, When the seat surface unit 30 is linked in the unfolded state, the inserting portion 51 and the engaging portion 52 are nested with each other, so that the seat surface unit 30 can be stably positioned relative to the main support rod 12 to provide a comfortable seat. safety.

To sum up, the crutch chair with the deployment positioning device of the present invention has a simple overall structure, is easy to manufacture and assemble, and can produce stable deployment and fixation effects, which can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention, and should not limit the scope of implementation of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the patent specification are still included in the scope of the present invention. within the scope of the invention patent.

10: Support unit 11: Pivot seat 111:Pivot piece 112: perforation 113: pin rod 12: Main support rod 121: First Bottom End 122: First Top 123: handle 13: Secondary support rod 131: Second bottom end 132: Second top 20: Slider 21: Casing 211: Bottom edge 212: top edge 213: Elastic groove 22: Pivot block 23: pivot ear 30: Chair Unit 301: Ride group 31: Main support 311: First End 312: Second End 313: Long side edge 314: Main support surface 315: Main Underside 316: Pivot Plate 317: First pivot tube 318: Rails 32: Side supports 321: Medial edge 322: outer edge 323: Side Support Surface 324: Side Bottom 326: Second pivot tube 327: Blocker 33: Guidance Department 34: Restricted block 341: Restricted face 342: Limit Surface 343: Guide Surface 344: Buckle 345: gusset 346: button hole 347: Buckle 302: Connecting rod group 35: Slider 36: The first link 37: Second Link 40: Trigger unit 41: Pivot guide 42: Trigger board 421: Control Department 43: Pivot Plate 44: Shaft rotating part 50: Positioning unit 51: Insert card part 52: Engagement part L: axis X: the first axis Y: the second axis

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: 1 is a three-dimensional combined view of an embodiment of a crutch chair with a deployment positioning device of the present invention; Fig. 2 is a partial enlarged schematic diagram of Fig. 1; Fig. 3 is a perspective exploded view of this embodiment; 4 is a perspective exploded schematic view of a sliding seat and a detent unit of the embodiment; 5 is a schematic plan view of this embodiment; 6 is a schematic diagram of an operation action of this embodiment; 7 is a schematic perspective view of an operation completed in this embodiment, illustrating that a support unit and a seat surface unit are in an unfolded state; Figure 8 is a bottom perspective schematic view of the embodiment; and FIG. 9 is a schematic plan view of FIG. 8 .

10: Support unit

11: Pivot seat

111:Pivot piece

112: perforation

113: pin rod

12: Main support rod

122: First Top

13: Secondary support rod

132: Second top

20: Slider

21: Casing

211: Bottom edge

212: top edge

213: Elastic groove

22: Pivot block

23: pivot ear

30: Chair Unit

301: Ride group

31: Main support

311: First End

312: Second End

313: Long side edge

314: Main support surface

315: Main Underside

316: Pivot Plate

317: First pivot tube

318: Rails

32: Side supports

321: Medial edge

322: outer edge

323: Side Support Surface

324: Side Bottom

326: Second pivot tube

33: Guidance Department

344: Buckle

347: Buckle

302: Connecting rod group

36: The first link

37: Second Link

40: Trigger unit

42: Trigger board

421: Control Department

43: Pivot Plate

44: Shaft rotating part

50: Positioning unit

51: Insert card part

52: Engagement part

L: axis

Claims (7)

A crutch chair with a deployment positioning device, comprising: a support unit, including a pivot seat, a main support rod, and at least two auxiliary support rods pivotally connected to the main support rod, the main support rod and the auxiliary support rods The rod is pivoted on the pivot seat; a sliding seat is slidably sleeved on the main supporting rod; a seat surface unit is linked by the sliding seat and can be in a retracted state relative to the main supporting rod and a relative to the main support rod, which is unfolded and crossed at an angle; The engaging portion and the engaging portion are concave-convex complementary, and when the seat surface unit is in the folded state, the engaging portion and the engaging portion are separated from each other, and when the seat surface unit is in the unfolded state, the engaging portion and the card The joints are nested within each other. The crutch chair with the unfolded positioning device as claimed in claim 1, wherein the inserting portion of the positioning unit is in the shape of a short cylinder and protrudes from the main support rod, the sliding seat further has a bottom edge, and an opposite On the top edge of the bottom edge, the engaging portion is recessed from the bottom edge toward the top edge and is in the shape of a groove. The crutch chair with a deployment positioning device as claimed in claim 2, wherein the engaging portion of the sliding seat is wide inside and narrow outside, and has a circular groove section with an angle greater than 180 degrees, and a groove adjacent to the sliding seat. The limit section of the bottom edge, the width of the limit section is smaller than the diameter of the circular groove section. The crutch chair with a deployment positioning device as claimed in claim 3, wherein the sliding seat further has at least one side provided on one side of the engaging portion and recessed from the bottom edge. An elastic groove, the elastic groove allows the limit segment to produce elastic deformation with varying width. The crutch chair with a deployment positioning device as claimed in claim 1, wherein the seat surface unit comprises a seating group connected to the sliding seat, and a link group connected to the pivot seat and linked by the seating group, The sliding seat is linked with the connecting rod group so that the seat group can switch between a folded state in which the seat group abuts against the support rods and an unfolded state in which it is unfolded with respect to the support rods. The crutch chair with deployment positioning device as claimed in claim 5, wherein the seating group of the seat unit has a main support member pivotally connected to the sliding seat, a pair of main support members pivotally connected to the main support member for The side supports supported by the auxiliary support rods, and a guide portion disposed on the main support, the main support has a main support surface, each side support has a side adjacent to the main support an inner edge, an outer edge opposite to the inner edge, a side support surface extending from the inner edge to the outer edge, a side bottom surface opposite to the side support surface, and a catch corresponding to the guide portion The detent block has a detent surface which is intersected with the side bottom surface, and the detent surface is inclined. The detent block is movably connected to the guide portion, and includes two detent portions. The detent unit is linked by the linkage unit, so that there is an oblique detent between the detent portions and the detent surfaces. move and switch the side support surfaces relative to the main support surface in an angularly arranged folded state and a parallel arrangement of the side support surfaces relative to the main support surface in an unfolded state. The crutch chair with deployment positioning device as claimed in claim 6, wherein the chair One side support member of the surface unit has a buckle plate arranged on the outer edge and has a buckle hook, and the other side support member has a buckle ring arranged at the outer edge and has a buckle hole. The seat surface unit is located in In the folded state, the buckle hole of the buckle and the buckle hook of the buckle plate are buckled with each other.

Images