JP2004121771A - Stick with two-strut type stool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stick with two-strut type stool which has portability like one leg type stick upon walking and safety without danger of falling down upon sitting on the opened stool. <P>SOLUTION: A stick rod, a stool, and a support rod are assembled into a foldable triangular assembly with two struts. When the assembly is opened, the stool is supported by four points of front and rear struts and both right and left feet on ground. When the assembly is closed, the two struts and the stool are tightly in contact with one another so as to function as a one-leg stick. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a walking aid walking stick incorporating a folding stool.
[0002]
[Prior art]
There are many ideas for folding walking sticks, and some products are available in Japan and abroad, but those emphasizing the function as resting chairs have functions as walking sticks, that is, simple walking aids as lightweight walking aids. There is little portability, and those that consider the portability of stick operation lack stability and comfort when used as a stool. As a folding chair, a pipe-assembled four-legged type is widespread, but it can be carried in a bag or car trunk and has no function as a walking stick. The three-legged type gives priority to the chair function, and those with sticks that take portability into account to some extent have been developed and produced overseas and imported to Japan. However, it is uncomfortable because it is bulky, relatively heavy, and the two legs other than the walking stick often touch the legs and road surface of the wearer when operating as a walking stick. Instead, it is simply shaped into a stick for ease of carrying. The purpose of the three-legged system that has been put into practical use is as a temporary chair for golf, horse racing and other sports watching, and a simple chair for campsites, after getting on the destination by car and carrying it to a place not far away. It is mainly used, and is suitable for the outdoor life of healthy people. As a domestic idea of a three-legged type, a lower portion is opened in a three-legged type for a camera (Japanese Patent Laid-Open No. 9-201215, Japanese Patent Laid-Open No. 11-309007), or a leg of the same grade is bundled at the center (Japanese Utility Model No. 6-66338). Although there is a registered utility model (No. 3065937), all of them are bulky due to a three-legged type, have a large number of parts, and are disadvantageous in weight. Some single-legged ones that emphasize the stick function have been announced because of their light weight and stick operability. Overseas, the handle part is divided into left and right sides and connected with a leather or canvas seat and seated. However, when sitting, there is no support for swinging back and forth, left and right, and it is an unstable sitting style, suitable for outdoor use of healthy people such as watching a race track or sports ground where the tip of a stick can be inserted into the ground, There is a lot of danger in the use of the elderly and the weak. In Japan, an idea in which one end of a stool is foldably engaged with a walking stick with a hinge (Japanese Patent Application Laid-Open No. 2001-299421, 5-82312) and an idea in which a handle is used as a stool (Japanese Patent Application Laid-Open No. 10-117821) are disclosed. However, since the landing part has a one-legged structure, stability is lacking for storing weight. In addition, since there are many components and the operation of unfolding as a stool or folding in a walking stick is complicated, it is not suitable for everyday use of the weak or elderly. The idea of having an auxiliary foot on one leg (Japanese Patent Application Laid-Open No. 8-332107) has also been disclosed, but it is basically designed to receive a load with a one-legged structure, There is instability in other directions.
[0003]
[Problems to be solved by the invention]
There are two issues.One is to reduce the weight of people who need walking sticks, such as those who are weak or elderly, so that they are not inconvenient for daily use, reduce the protrusion of the folded parts during walking, and carry good walking sticks. Is to provide sex. The other is to provide a stable and stable stool structure for rest. The present invention is intended to solve this conflicting problem.
[0004]
[Means for Solving the Problems]
Means taken to solve the above-mentioned problem is to add the minimum necessary mechanism for improving the stability as a stool while making the most of the lightness and operability of the one-leg cane in the form of a shape. . This is based on the dynamics of a bicycle, and as a result of repeated trial production and experiments, we have developed a two-legged structure that is halfway between a single leg and a three-legged type. It is constructed as a one-legged walking stick, and when resting, a stable seating can be obtained by using four points of support including the left and right legs and the open front and rear two legs, so that the above two problems can be solved. Was.
[0005]
[Operation]
The two-legged walking stick of the present invention is lighter in weight than the three-legged walking stick, and the protrusion of the legs is significantly reduced. When the stool is folded and carried, the two legs adhere to each other to form a single leg. Further, when the stool is unfolded during the rest, the two legs connecting the stool to the ground form a vertical triangle which is opened in the front-rear direction, and the positional relationship with the ground is fixed, so that there is no swing in the front-rear direction. In addition, since the legs of the seated occupant are open to the left and right and are stepping on the ground, the swing in the left and right directions is suppressed by both feet, and a stable sitting posture supported by four points is obtained. In addition, since the walking stick that makes up the triangle itself is stable at a fixed angle with respect to the ground, the sitting posture of the walking stick can be stabilized by holding the handle of the walking stick by hand. Can be.
[0006]
【Example】
First Embodiment A first embodiment of the present invention will be described with reference to a perspective view of FIG. In order to make the structure easy to see, the shape of the stool body is shown by a chain line. The first support (hereinafter referred to as a stick) 1 has a handle 1a at an upper end and a rubber foot 1b at a lower end, and a hinge 2a of a folding type stool 2 is engaged with a pin 3 in a middle slightly upper hole 1c by a pin 3. I have. On the lower surface of the stool 2, there are two hinges 2 b divided into right and left, and a T-shaped upper end 4 a of a second support (hereinafter, referred to as a support rod) 4 engages via a pin 5 to support the hinge. The rod 4 extends to the ground to support the stool load and contacts the ground with a rubber foot 4b at the lower end, but intersects the stick rod 1 in an X-shape at the middle 4c and is fitted with a hinged slide fitted to the support rod 4. The moving member 6 is disposed, and the hinged sliding member 6 is engaged with the stick 1 by a pin 7 inserted into a hole 1d provided in the stick 1. In order to maintain the horizontal posture of the stool 2, a stopper 8 that regulates the sliding of the support bar 4 at a constant stroke is attached to the support god 4. When used as a walking stick, the stool 2 is lifted and folded around the pin 3 so as to be in close contact with the walking stick 1, and the supporting rod 4 is lifted upward from the hinged sliding member 6 and rotated around the pin 7 to rotate around the pin 7. Adhere to 1. When the stool 2 is deployed as a rest stool, the stool 2 is opened from the walking stick 1 and the stopper 8 is pushed down until the stopper 8 hits the hinged sliding member 6. The walking stick 1 and the supporting stick 4 intersect in an X-shape and the positional relationship is fixed by hinge engagement, so that the user can sit on the stool 2 like riding a bicycle. FIG. 10 shows a front view in a state where the whole is folded.
[0007]
FIG. 2 shows a side view of a second embodiment in which the support rod is a double cylinder that can slide and extend. A hinged support cylinder 4x in which the function of the hinged sliding member 6 and the function of the support rod 4 are integrated has an intermediate portion engaged with the walking stick 1 with a pin 7, and a T-shaped hinge is attached to the hinge 2b of the seat 2. A support rod core material 4y having the upper end 4a engaged with the pin 5 is inserted into the support cylinder 4x with a hinge, and the entire support rod composed of 4x and 4y can be extended and contracted. The load at the time of sitting is transmitted from the T-shaped upper end 4a of the support core 4y to the upper end of the hinged support cylinder 4x. The engagement relationship between the T-shaped upper end 4a of the supporting rod core 4y and the seat 2 is the same as in the first embodiment, and the front shape of this portion is as shown in FIG. When the stool 2 is lifted, the stool 2 rotates about the hinge 1e of the walking stick 1, and the supporting rod core material 4y is pulled out from the supporting cylinder 4x to extend the entire length of the supporting rod, whereby the whole stool with stool can be folded.
[0008]
FIG. 3 shows a side view of the third embodiment in which the sliding member is inserted into the stick 1. The solid line indicates the stool deployed state, and the two-dot chain line indicates the position of the sliding member in the folded state and the posture of the person sitting on the deployed stool. The overall configuration is almost the same as in the first embodiment, but differs from the first embodiment in the following. Unlike the first embodiment, the sliding member 6 is inserted into the walking stick 1 and hingedly engaged with one end of the stool 2, the sliding member 6 slides on the axis of the walking stick. Since the whole can be folded by this sliding, the X-shaped intersection of the stick bar 1 and the support bar 4 does not need to slide, and has a position-fixed hinge structure. When used as a walking stick, the sliding member 6 is slid above the supporting rod 4 so that the stool 2 is brought into close contact with the walking stick 1 and folded. When used as a stool, the sliding member 6 is pushed down to deploy the stool 2 horizontally. A stopper 8 is fixed to the stick 1 so that the sliding member 6 is not excessively lowered. As described above, the third embodiment is a two-legged walking stick with a different arrangement axis of the sliding member 6 from the first embodiment. Although the folding method in which the hinge is slidable on the axis of the X-shaped stick or support rod has been described, folding is possible if any of the sides constituting the triangle is extendable.
[0009]
FIG. 4 is a side view of the fourth embodiment in which the sliding rail 2c is attached to the lower surface side of the stool 2. The solid line indicates the seated deployed state, and the two-dot chain line indicates the folded state. The stool 2 is folded downward around the hinge 1e. The slide pin 4d at the upper end of the support rod A moves in the groove of the slide rail 2c, and the groove is slightly deepened upward so that its position is stabilized in the seated and deployed state.
[0010]
FIG. 5 shows a side view of a fifth embodiment in which the support bar 4 is divided into two parts in order to perform folding more compactly. The shape of the solid line indicates the seated state and the two-dot chain line indicates the folded state. FIG. 11 is a front view of a folded portion of a seat, that is, a portion serving as a handle. This embodiment can be folded in the same plane, so that the amount of lateral protrusion is small, and it is intended for convenient portability. One end of the stool 9 is hinge-engaged with the walking stick 1, and the upper end of the upper half 10 a of the support bar divided into two hinge portions 9 a on the lower surface of the stool 9 is hinged. In the folded state, the upper side of the stool 9 is engaged with the upper end of the walking stick 1 in order to use it as a handle of the walking stick. Means of engagement are various, but a recess 9b is provided in the center of the lower surface of the upper side of the stool 9 and a protrusion or a slide type outer cylinder is installed at the upper end of the stick 1 so that the tip of the stool 9 You may make it fit into the recess 9b. A tube-shaped sliding member 11 is fitted into the intermediate portion of the walking stick 1, and the lower end of the upper support rod 10a is hinged to the upper end thereof. The upper end of the lower support bar 10b is hingedly engaged with the lower end of the sliding member 11, and the lower end of the lower support bar 10b is grounded to support a part of the stool load. The hinge 1f of the walking stick 1 and the lower end hinge of the lower support bar 10b are connected by a restraining member 12 so that the lower support bar 10b opens at a predetermined angle. The restraining member 12 may be, for example, a combination of a stopper, a spring, a strap, and the like, as long as the opening angle of the lower support bar 10b can be maintained at a predetermined value when deployed. In order to hold the stool 9 horizontally, a stopper 8 is provided on the stick to prevent the sliding member 11 from falling too much. The upper support bar 10a and the lower support bar 10b are interlocked through the sliding member 11. Now, when the stool is caused to be folded, the upper support bar 10a pulls up the sliding member 11, and accordingly, the lower support bar 10b and the restraining member 12 are pulled up, and each comes into close contact with the walking stick 1. In the first and second embodiments, the support rods need to be arranged side by side so as not to interfere with the walking stick, and the portion is extended laterally. However, in the present embodiment, the support rods are divided up and down, and Since it is connected to hinges provided on the back side and the abdomen side of the sliding member 11 having a role, the sliding member 11 is in the same plane, there is no need for side crossing, it can be folded compactly, and it is convenient to carry.
[0011]
FIG. 6 shows a side view of the sixth embodiment. The fifth embodiment is different from the fifth embodiment in that the link between the upper and lower portions of the support rod divided into two parts is omitted, and the folding / unfolding operation is performed independently in the vertical direction. The function of the upper support bar 10a and the connection with the sliding member 13 are the same as in the fifth embodiment, but the lower support bar 10c is fixed to the stick pin 1g provided on the walking stick 1 irrespective of the movement of the sliding member 13. , And can be manually folded or expanded to a predetermined angle, but a friction material or the like is incorporated in the hinge portion so that the lower support rod 10c does not wobble. The lower support bar 10c also has a stopper that suppresses the leg opening angle to a predetermined value. The lower support bar 10c can be in close contact with the support bar 1 by using a channel material having a U-shaped cross section, and has a click stop at the tip to maintain the close contact. This structure has the least protrusion of the member when folded. In contrast to the one-action folding / expanding of the fifth embodiment, the action becomes two actions, but has the same effect as a two-legged stool. The shape of the seat portion in the folded state is shown in FIG. 11 similarly to the fifth embodiment.
[0012]
FIG. 7 shows a seventh embodiment of the present invention in which the stool of the sixth embodiment is detachable to enhance lightness as a walking stick. The sliding member is unnecessary, and when the stool is used, the stool can be fixed by inserting the front end of the stool 14 into the pin 3 fixed to the walking stick 1 and the lower end of the support bar 10x into the pin 5. The support rod 10x is engaged with the stool 14 by the pin 5. When used as a walking stick, the stool 14 and the support bar 10x are lifted up and removed. For small movements, it may be more convenient to fold the stool 14 on the walking stick 1 and assemble it. In this case, one of the engagement points is snapped to the pin 3 or the pin 7 so that the stool 14 can be carried together. Can be
[0013]
FIG. 8 shows a side view of an eighth embodiment in which a stool, which is one side, is divided into two parts and folded and provided with a relay link, instead of a hinged sliding member that changes the length of one side. The shape of the solid line is the unfolded state, and the shape of the chain double-dashed line is the folded state. FIG. 9 is a front view of the folded state. The stool 15 is engaged with the walking stick 1 via the relay link 16 at the hinge 1h. In the horizontally deployed state of the stool 15, the upper edge of the relay link 16 is in close contact with the back surface of the stool to absorb the downward load of the stool, and transmits the load to the walking stick 1 through the hinge 1h. When folding, when the relay link 16 is lifted and rotated around the hinge 1h, the stool 15 slides up along the walking stick, the supporting rod A is brought close to the walking stick 1, and the whole is folded like a two-dot chain line.
[0014]
FIG. 12 shows a state in which the shape of the grounding point of the support rod is a wide-type grounding foot 17, and when the grounding portion of the support rod 4 or 10b or 10C is attached so that the grounding right and left width is widened, the stability in the horizontal direction is improved. And the effect of a three-legged grounding is achieved while being a two-legged type. It can be applied to any of the embodiments.
[0015]
【The invention's effect】
The walking stick with a two-legged stool of the present invention has portability as a walking stick that was impossible with a four-legged folding stool. Also, due to its structure, it is lighter in weight and better in design than a three-legged stick, and can be carried as a one-leg stick with few protrusions, so the practicality as a stick is excellent. There should be no risk of falling when used as a stool for rest, but sitting on a two-legged stool according to the invention is based on the same principle as sitting on a bicycle that has been stopped with the brake applied. There is no danger of falling over. That is, the stool supported at two points in front and behind the ground by the triangular link configuration corresponds to a bicycle saddle with a brake applied, and the handle of the walking stick head corresponds to a bicycle handle. The state in which the foot is lowered left and right while sitting on the stopped bicycle and the state in which the foot is lowered left and right while sitting on the stool of the present invention are mechanically identical. As described above, sitting on the saddle of the bicycle, holding the handle, and dropping the legs left and right, the same state is established when sitting on this stool, and it is supported at four points in front, back, left and right, in any direction There is no danger of falling. As described above, while maintaining safety by the two-legged stool with the grounding points opened in the front and rear, it was possible to realize the portability as a single leg which was impossible with the three-legged type in the folded state.
[Brief description of the drawings]
FIG. 1 is a perspective view of a first embodiment.
FIG. 2 is a side view of a second embodiment.
FIG. 3 is a side view of a third embodiment.
FIG. 4 is a side view of a fourth embodiment.
FIG. 5 is a side view of a fifth embodiment.
FIG. 6 is a side view of a sixth embodiment.
FIG. 7 is a side view of the seventh embodiment.
FIG. 8 is a side view of an eighth embodiment.
FIG. 9 is a front view showing a state where Example 8 is folded.
FIG. 10 is a front view showing the folded state of the first embodiment.
FIG. 11 is a front view showing a handle in a folded state according to the fifth and sixth embodiments.
FIG. 12 is a front view showing a widened support rod grounding portion.
[Explanation of symbols]
1. Walking stick 1a. Handle 1b. Rubber feet 1c. Hinge hole 1d. Hinge hole 1e. Hinge of stick rod for attaching stool according to Example 2 If. 1 g of hinge at the lower part of the walking stick of Example 5 Hinge pin 1h. 1. Hinge part of Example 8 Stool 2a. Hinge for attachment to walking stick 2b. Hinge for attachment to support rod 2c. 2. The sliding rail of the stool according to the fourth embodiment. 3. Pin on the center of rotation of the stool Support rod 4a. A T-shaped part 4b at the upper end for attaching the support rod to the lower surface of the stool. Rubber feet 4c. Hinge hole 4d in the middle of support rod. The upper end slide pin 4x. The supporting cylinder 4y. 4. Support rod core material of Example 2 5. Rotation center pin on top of support rod 6. Sliding member of Examples 1 and 3 7. Pin engaging the stick and support rod 8. stopper that regulates the sliding stroke Stool 9a. Support rod mounting hinge portion of stool 9b. Handle recess in upper side of stool 10a. Top support rod 10b of Examples 5 and 6. The lower support rod 10c of the fifth embodiment. The lower support rod 10x. 10. Support rod of Example 7 11. Sliding member with hinge according to fifth embodiment Restraint member13. 13. Sliding member of Embodiment 6 14. Stool of Example 7 Stool of Example 816. Relay link 17. Wide ground foot

Claims (6)

A first support formed as a walking stick and a triangular support mechanism that supports the stool horizontally in the front-rear direction by a second support that is hinged to the first support, and any of the triangles including the stool and configuring the triangular support mechanism A walking stick with a two-legged stool that can be fully folded by making the length of the sides variable. One end of a stool is hingedly engaged with a first column used as a walking stick, and a second column sharing a stool load is hingedly engaged with a lower surface of the stool, and an intermediate portion between the first column and the second column. By hinge-engaging and allowing any of said hinged engagements to slide relative to the first or second post or stool with which the stool and the second post are foldable. Or a stick with a two-legged stool that can be deployed as a stool. One end of a stool is hingedly engaged with a first column used as a walking stick, and a second column is hingedly engaged with a lower surface of the stool. The second column is slidably inserted into the outer cylinder and the outer cylinder. A two-legged stool with a stool-engaged hinged mandrel, wherein the middle portion of the outer cylinder of the second support and the middle portion of the first support are hinged. The second support of claim 2 is vertically divided into two parts, the upper end of the upper second support is hinged to the lower surface of the seat, and the lower end of the upper second support is hinged to the upper end of the sliding member inserted into the first support. And the upper end of the lower second support is hingedly engaged with the lower end of the sliding member or the lower part of the first support so that the lower second support can be opened at a predetermined angle with respect to the first support. Walking stick with legged stool. 2. The walking stick with two legs according to claim 1, wherein the stool is hingedly engaged with the first support via the relay link, and the relay link is rotated around the hinge of the first support so that the whole can be folded. 2. The walking stick with a two-legged stool according to claim 1, wherein a part or all of the sides other than the first support pillar constituting the triangular support mechanism can be removed so that the whole can be folded.

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