JP3223878U - Cane structure with stepless adjustment - Google Patents

Abstract

The present invention solves the disadvantages of a conventional cane structure and provides a cane structure with stepless expansion and contraction adjustment. A cane structure for stepless expansion / contraction adjustment includes an inner tube, an outer tube, and an interlocking unit. The interlocking unit is drilled between the inner and outer tubes, and in particular, the pressing member 33 of the interlocking unit is fixed to the end of the inner tube, and the compression member 34 of the interlocking unit is movably inserted into the outer tube. The shaft rod 31 is connected and interlocked with the connecting block and the lever 13 in the upper half of the inner tube, thereby controlling the position movement of the shaft rod using the lever, and the compression member and It is formed in a state where the pressing member is expanded and compressed or contracted and unlocked by interlocking, and then reaches a length adjustment and a fixed state between the outer tube and the inner tube, so that a simple and labor-saving expansion / contraction adjustment function is provided. Because the user can adjust the length easily and speedily, it is more suitable for elderly people with less power and less skill, and the convenience of use increases. [Selection] Figure 2

Description

  The present invention relates to a cane structure, and more particularly to a cane structure with stepless expansion and contraction adjustment.

  As shown in FIGS. 11 and 12, the cane 40 includes a main pole 41 and a support pole 42, and the main pole 41 and the support pole 42 are provided with a telescopic positioning structure 50 at a position corresponding to each other. Is provided. The telescopic positioning structure 50 includes a socket 51 and an expansion actuating member 52. The socket 51 is inserted into the support pole 42 to form a tightly combined state, and a thread 511 is formed on the surface of the socket 51. The other end of the actuating member 52 has a cylindrical shape and is provided on the threaded portion 511 of the socket 51, and an elastic claw portion 521 is provided on the bottom end of the extended actuating member 52, and the socket 51 is provided with the conical base 60. The socket 51 is provided with a support 512 that supports the bottom of the conical base 60. In a state where the conical base 60 and the elastic claw 521 of the expansion operation member 52 are combined with a slanted surface, the elastic claw 521 of the expansion operation member 52 is expanded outward, and then on the inner wall of the main pole 41. Fits exactly to reach the positioning state. When the user wants to adjust the length of the cane 40, the user turns the support pole 42, and synchronizes the rotation of the socket 51 and the conical base 60. By making full use of this, it is possible to control the tightness and unlocking change of the expansion actuating member 52 and the conical base 60 by rotating and moving the position, and the purpose of adjusting the length can be achieved.

  If you look closely at the above-mentioned conventional structure, you can see that there is a shortage. The main causes are: (1) The cane 40 expands the expansion operation member 52 by the conical base 60 by tightening the thread 511 of the socket 51, and the elastic claw portion 521 of the expansion operation member 52 is connected to the main pawl 41. The inner wall is pressed. If the compression strength is increased, more force is applied and the socket 51 is pressed against the expansion actuating member 52, so that the situation where the force is excessively applied becomes clear because the screw rotation prevention force is too large. When the weight is applied to the main pole 41, the expansion operation member 52 further approaches the threaded portion 511 of the socket 51, so that the space between the expansion operation member 52 and the socket 51 is likely to be locked. There is a drawback that it is difficult to remove by turning and is difficult to operate.

  (2) Since the threaded portion 511 of the socket 51 and the extension actuating member 52 are adjusted in length by a rotation method, the support pole 42 is formed with a smooth outer surface. It is difficult to rotate by gripping, and the speed of adjusting the length by the method of rotating the support pole 42 is slow, and the length of the cane 40 cannot be changed quickly according to the usage situation. is there.

  Therefore, the present inventor obtained the present invention full of practicality as a result of careful design and careful evaluation of the above goals based on the manufacturing development and design experience of related products for many years.

  It solves the above-mentioned drawbacks existing in the prior art and provides a stepless expansion / contraction adjustment cane structure.

The cane structure with stepless expansion and contraction adjustment includes an inner tube, an outer tube, and an interlocking unit. A through hole is provided in the upper half of the inner tube, and a connection socket is fixed to the tube of the inner tube at a position corresponding to the through hole. The connecting socket is provided with a pivoting portion and a drilling hole penetrating the inner wall surface of the pivoting portion, the drilling hole is in communication with the throughhole, and the pivoting portion plugs a lever. The lever has a connecting portion located at the center and an interlocking portion located at the front end. The interlocking portion is inserted into the inner tube through the drilled hole and the through hole in order, the connecting portion is plugged at the pivotal portion, and a grip is provided at the top end of the inner tube. Non-slip rubber is fitted to one end of the outer tube, and an open tube port is formed at the other end, and the inner tube is drilled through the open tube port. The interlocking unit is provided between the inner and outer tubes, and includes a shaft bar, a connecting block, a pressing member, and a compression member. A first thread portion and a second thread portion are formed at both ends of the shaft rod, and a sheet and an elastic member are inserted by the second thread portion. Further, the rod body of the shaft rod is provided with a position limiting portion to limit the sheet and the elastic member. One end of the connecting block is fixed to the first threaded portion of the shaft rod, and a combination groove is provided on the side of the connecting block, and is fixedly engaged with the interlocking portion of the lever. One end of the pressing member is provided with a position-limiting ring portion and a conical portion, and an axial through groove is provided at both ends of the pressing member, and the pressing member faces the conical portion outward, and then The shaft is fitted to the shaft rod by the second threaded portion via the axial through groove, and is further locked and fixed to the bottom end of the inner tube by the position limiting ring portion. At the same time, an elastic member is placed between the sheet and the pressing member, a shaft hole is provided in the compression member, and a plurality of adjacent ring-shaped expansion sheets are provided toward the pressing member. Furthermore, the compression member is fitted to the shaft rod from the second threaded portion by a shaft hole, and finally tightened to the second threaded portion by a nut, thereby limiting the position of the compression member, and The outer diameter is further provided with at least one resilient ring.

  The other end of the connecting block is provided with a tool hole that is not circular.

  The lever interlocking portion is provided with convex columns that are symmetrical to each other on both sides, and the combination groove of the connecting block is formed with a cross-shaped concave groove.

  The top end of the open pipe port is overlaid with a lubrication ring, and an outer thread is provided on the outer diameter of the open pipe port. Further, by tightening the protective ring cover, the lubrication ring is limited to the top end of the open pipe port. The

  In contrast to the effects of the prior art, the interlocking unit is drilled between the inner and outer tubes, and in particular, the pressing member of the interlocking unit is fixed to the end of the inner tube, and the compression member of the interlocking unit is movable. Inserted into the outer tube, and the shaft bar is connected and interlocked with the lever of the upper half of the connecting block and the inner tube, thereby controlling the position movement of the shaft bar using the lever. In addition, the compression member and the pressing member are formed in a state where the compression member is expanded and pressed or contracted and unlocked, and then the length adjustment between the outer tube and the inner tube is reached and a fixed state is reached. In addition, the labor-saving expansion / contraction adjustment function allows the user to easily and quickly adjust the suitable length, making it more suitable for the elderly with low power and low skills, and increases convenience of use.

FIG. 1 is a three-dimensional view showing a stepless expansion / contraction adjustment cane structure according to the present invention. FIG. 2 is an exploded view showing a cane structure for continuously expanding and contracting adjustment according to the present invention. FIG. 3 is an exploded view of the interlocking unit of the present invention. FIG. 4 is a combined cross-sectional view showing a continuously variable expansion and contraction cane structure according to the present invention. FIG. 5 is an enlarged cross-sectional view of the upper half local area where the cane of the present invention is tightly fixed. FIG. 6 is an enlarged cross-sectional view of a lower half local area where the cane of the present invention is tightly fixed. FIG. 7 is a view showing that the upper half local area where the cane of the present invention is contracted and unlocked is enlarged. FIG. 8 is an enlarged view of the lower half local area where the cane of the present invention is contracted and unlocked. FIG. 9 is a diagram showing that the cane of the present invention is tightened and fixed again after adjustment and is locally enlarged. FIG. 10 is a diagram showing that the cane of the present invention is extended and used. FIG. 11 is an exploded view of the related art. FIG. 12 is a cross-sectional view of a conventional combination.

First, please refer to FIGS. The cane structure for continuously expanding and contracting adjustment includes an inner tube 10, an outer tube 20, and an interlocking unit 30. A through hole 11 is provided in the upper half of the inner tube 10 and a connection socket 12 is fixed to the inner tube 10 at a position corresponding to the through hole 11. The connecting socket 12 is provided with a pivot part 121 and a drill hole 122 penetrating the inner wall surface of the pivot part 121, and the drill hole 122 communicates with the through hole 11 in a relative manner. The lever 13 is plugged, and the lever 13 has a connecting portion 131 at the center and an interlocking portion 132 at the front end. The interlocking portion 132 passes through the hole 122 and the through hole 11 in order and is inserted into the inner tube 10, and the connecting portion 131 is plugged into the pivotal portion 121 and is connected to both sides of the interlocking portion 132. Convex pillars 133 symmetrical to each other are provided, and a grip 14 is provided at the top end of the inner tube 10. An anti-slip rubber 21 is fitted to one end of the outer tube 20, and an open tube port 22 is formed at the other end, and the inner tube 10 is drilled through the open tube port 22. The interlocking unit 30 is provided between the inner and outer tubes 10 and 20, and includes a shaft bar 31, a connecting block 32, a pressing member 33, and a pressing member 34. A first thread portion 311 and a second thread portion 312 are formed at both ends of the shaft 31, and a sheet 313 and an elastic member 314 are inserted from the second thread portion 312. Further, the position limiting portion 315 is projected from the lower half portion of the rod body of the shaft rod 31 to limit the sheet 313 and the elastic member 314. One end of the connecting block 32 is fixed to the first threaded portion 311 of the shaft 31, and the other end is provided with a tool hole 321 that is not circular. Further, the connecting groove 32 is connected and fixed to the side of the connecting block 32 so as to coincide with the combination groove 322 of the concave groove on the cross and the interlocking portion 132 of the lever 13. One end of the pressing member 33 is provided with a position-limiting ring portion 331 and a conical portion 332, an axial through groove 333 is provided at both ends of the pressing member 33, an axial hole 341 is provided in the compression member 34, and A plurality of adjacent ring-shaped expansion sheets 342 are provided toward the pressing member 33, and the compression member 34 is further fitted to the shaft 31 from the second threaded portion 312 through the shaft hole 341, and finally the nut 343. By tightening to the second threaded portion 312, the position of the compression member 34 is limited, and the outer diameter of these expansion sheets 342 is further provided with at least one elastic ring 344.

The combination of the structures will continue to refer to FIGS. 4 to 6 in accordance with FIGS. The interlocking unit 30 assembles the connecting block 32 by the first threaded portion 311 of the shaft 31, and uses the tool hole 321 at the top end of the connecting block 32 to fasten it with a screw to fix it. To do. Further, the sheet 313 and the elastic member 314 are inserted from the second threaded portion 312 of the shaft 31, and the position of the sheet 313 is further limited by the restricting portion 315 of the shaft 31 so that the elastic member 314 is pivoted. Restrict to the lower half of the bar 31. The pressing member 33 has the conical portion 332 facing outward, and then is fitted to the shaft rod 31 from the second threaded portion 312 via the axial through groove 333, and at the same time, the elastic member 314 is attached to the seat 313. Restriction is made between the pressing members 33. The compression member 34 has these expansion sheets 342 directed toward the pressing member 33 and is further fitted to the shaft rod 31 from the second threaded portion 312 by the shaft hole 341, and these expansion sheets 342 are fitted to the conical portion. The compression member 34 is positioned on the outer periphery of 332 and finally tightened to the second threaded portion 312 by the nut 343. The interlocking unit 30 is incorporated into the inner tube 10 from the bottom to the top by a connecting block 122, and the connecting block 122 is positioned relative to the through hole 11 of the inner tube 10. Further, the interlocking portion 132 of the lever 13 passes through the drilled hole 122 and the through hole 11 in order, and is connected to the combination groove opening 322 of the connecting block 32, and the connecting portion 131 of the lever 13 is connected to the connecting socket 12. As a result, the shaft 31 is moved up and down and moved by twisting the lever 13. The pressing member 33 of the interlocking unit 30 is positioned relative to the bottom end of the inner tube 10, and is further locked and fixed to the bottom end of the inner tube 10 by a position limiting ring portion 331. The outer tube 20 is incorporated outside the inner tube 10 by an open tube port 22, a lubricating ring 23 is superimposed on the top end of the open tube port 22, and an outer thread 221 is formed on the outer diameter of the open tube port 22. When the outer ring 20 is expanded and contracted to the outside of the inner pipe 10 by restricting the lubricating ring 23 to the top end of the open pipe port 22 by further tightening the protective ring cover 24, By being smoother, the outer wall of the inner tube 10 can be less damaged and damaged. Finally, the shaft rod 31 is lifted in conjunction with the lever 13 to move the compression member 34 toward the pressing member 33, and the expansion sheet 342 is gradually moved along the conical portion 332. The outer tube 20 is expanded and applied to the inner wall of the outer tube 20 to reach a fixed state of the outer tube 20. The above-described structure completes the stepless expansion / contraction adjustment cane structure.

Refer to FIGS. 4 to 6 for the actual usage state of the structure. When the cane is fixed by twisting the lever 13 downward, the cane pushes up the connecting block 32 and ascends the shaft 31 to move the position. Next, the shaft 31 is moved to the direction of the pressing member 33 from the compression member 34 of the second thread portion 312, so that the expansion sheet 342 is positioned at the outer diameter gradually enlarged along the conical portion 332. It moves and expands outward, and then the elastic ring 344 is applied to the inner wall of the outer tube 20 so that the outer tube 20 is positioned. As a result, when the user assists walking with the cane, the cane is used for support, so the center of gravity of the body part is transferred to the cane, and the force is transmitted along the inner tube 10 to the outer tube 20. Since the inner tube 10 applies a force from the top to the bottom by the user, the outer tube 20 is applied to the ground to generate a reaction force upward, and is supported between the pressing member 33 and the compression member 34 of the interlocking unit 30. Since the tightening effect is increased, the outer tube 20 can be reliably prevented from sliding and moving along the inner tube 10, and the use length of the cane is secured, Improves the safety of auxiliary walking with a cane.

When the user wants to adjust the length of the cane, further refer to FIGS. First, the lever 13 is actuated upward with the connecting portion 131 as a fulcrum, and the connecting block 32 is moved downward in conjunction with it. At this time, the shaft 31 sinks as the connecting block 32 moves, and the elastic member 314 between the seat 313 and the pressing member 33 is also formed in a compressed state by the shaft 31 sinking, In the shaft 31, the compression member 34 of the second thread portion 312 is separated from the conical portion 332 of the pressing member 33. At the same time, the compression member 34 is internally contracted by the elastic ring 344 fitted on the outer periphery of the expansion sheet 342, so that the inner wall of the outer tube 20 is closed and the member 34 is not fixed and fixed to the ground. When it is lifted further, the outer tube 20 is lowered naturally by the weight of the outer tube 20 so as to extend the length of the cane. Alternatively, when the cane is pushed to the ground, the outer tube 20 moves upward along the inner tube 10 to move the cane The length is reduced and adjusted, thereby achieving the purpose of stepless expansion / contraction adjustment. After the adjustment, the lever 13 is again twisted to operate, and the shaft 31 is lifted and moved using the rebound of the elastic member 314, thereby pressing the interlocking unit 30. The member 34 and the pressing member 33 return to a positioning state that approaches the inner wall of the outer tube 20, and then the length to be used after the inner and outer tubes 10, 20 are adjusted is fixed. The length to be used can be adjusted. In addition, when the cane is used on a staircase, the user can quickly adjust the length suitable for the length of the arm and the height of the staircase, or when the user wants to stand up from a sitting state, the user can also retract the cane. By helping to stand up against the ground, the practicality of the structure is greatly improved.

The following effects can be obtained by the structure of the specific embodiment described above. The interlocking unit 30 is pierced between the inner and outer tubes 10, 20. In particular, the pressing member 33 of the interlocking unit 30 is fixed to the end of the inner tube 10, and the compression member 34 of the interlocking unit 30 is movable. The shaft rod 31 is inserted into the outer tube 20, and the shaft rod 31 is connected and interlocked with the connecting block 122 and the lever 13 in the upper half of the inner tube 10. Is controlled to move up and down, and the compression member 34 and the pressing member 33 are interlocked to be expanded and pressed or contracted and unlocked, and then between the outer tube 20 and the inner tube 10. By reaching the length adjustment and fixed state, the user can easily and speedily adjust the length suitable for the labor-saving expansion / contraction adjustment function, so it is suitable for elderly people with low power and low skill. Increases convenience

The above is only a part of the embodiments according to the present invention, and does not limit the scope of the present invention. That is, changes, modifications, and the like made within the scope of the claims of the present invention should also belong to the scope of the present invention.

Invention:
DESCRIPTION OF SYMBOLS 10 Inner pipe 11 Through-hole 12 Connecting socket 121 Pivoting part 122 Drilling hole 13 Lever 131 Connection part 132 Interlocking part 133 Convex pillar 14 Grip 20 Outer pipe 21 Non-slip rubber 22 Open pipe port 221 Outer thread 23 Lubrication ring 24 Protection Ring cover 30 Interlocking unit 31 Shaft bar 311 First thread part 312 Second thread part 313 Sheet 314 Elastic member 315 Position limiting member 32 Connection block 321 Tool hole 322 Combination groove 33 Pressing member 331 Position limiting ring 332 Conical part 333 Axial through groove 34 compression member 341 shaft hole 342 expansion sheet 343 nut 344 elastic ring
<Conventional>
40 Cane 41 Main Pole 42 Support Pole 50 Telescopic Positioning Structure 51 Socket 511 Threaded Portion 512 Support Portion 52 Extended Actuation Member 521 Elastic Claw Portion 60 Conical Base

Claims (4)

A cane structure having a continuously variable expansion / contraction adjustment including an inner tube, an outer tube, and an interlocking unit,
A through hole is provided in the upper half of the inner tube, and a connection socket is fixed to the tube of the inner tube at a position corresponding to the through hole. A perforation hole penetrating the inner wall surface of the portion is provided, the perforation hole is in communication with the through hole, the pivot portion is plugged with a lever, and the lever is connected to the center and the front end. The interlocking portion is inserted into the inner tube through the drilling hole and the through hole in order, the connecting portion is plugged into the pivotal portion, and A grip is provided at the top end of the tube,
Non-slip rubber is fitted to one end of the outer tube, an open tube port is formed at the other end, and the inner tube is drilled through the open tube port,
The interlocking unit is provided between the inner and outer tubes, and includes a shaft rod, a connecting block, a pressing member, and a compression member, and a first thread portion and a second thread portion at both ends of the shaft rod. And a sheet and an elastic member are inserted from the second threaded portion, and a position limiting portion of the rod body of the shaft bar is provided so as to restrict the sheet and the elastic member. One end is fixed to the first screw thread portion of the shaft rod, a combination groove is provided on the side of the connecting block, and is fixedly engaged with the interlocking portion of the lever, and is positioned at one end of the pressing member. A limiting ring portion and a conical portion are provided, and an axial through groove is provided at both ends of the pressing member. The pressing member faces the conical portion outward, and then passes through the axial through groove. Fitted to the shaft rod by the second threaded portion, further forward The position-restricting ring portion is locked and fixed to the bottom end of the inner tube, and at the same time, an elastic member is placed between the sheet and the pressing member, a shaft hole is provided in the compression member, and a plurality of members are directed toward the pressing member. Ring-shaped expansion sheets adjacent to each other, and further, the compression member is fitted to the shaft rod by the second screw thread portion by a shaft hole, and finally tightened to the second screw thread portion by a nut, The position of the compression member is limited, and at least one elastic ring is provided on the outer diameter of these expansion sheets, whereby the compression member is inserted into the outer tube, and the lever is used to the shaft rod. Adjusting and fixing the length between the outer tube and the inner tube by controlling the movement of the lifting position and forming a state in which the compression member and the pressing member are interlocked to expand or compress or contract and unlock. Cane structure stepless telescopic adjustment, characterized in that reach state.   2. The stepless expansion / contraction adjustment cane structure according to claim 1, wherein the other end of the connection block is provided with a tool hole which is not circular.   2. The stepless expansion / contraction adjustment cane structure according to claim 1, wherein the lever interlocking portion is provided with convex columns symmetrical to each other on both sides, and the coupling groove of the connecting block is formed with a cross-shaped concave groove.   A lubrication ring is stacked on the top end of the open pipe port, an outer thread is provided on the outer diameter of the open pipe port, and the protective ring cover is tightened to restrict the lubrication ring to the top end of the open pipe port. The stepless expansion / contraction adjustment cane structure according to claim 1.