JP5800210B1 - Folding cane - Google Patents

Abstract

Provided is a foldable walking stick in which each component is not moved freely by the elasticity of a connecting string when it is changed from a folded state to a connected state, and can be connected by a simple operation. A wire 7 that connects a first cylinder 1 provided with a grip and a second cylinder provided with a stone bump is urged by using a spring member 5 provided in the first cylinder 1, and the wire Since the locking member 6 to which the 7 is attached can be locked, the operation can be performed without being influenced by the urging force of the spring member 5 when the folded state is changed to the connected state. Moreover, since the lock release button 8 for releasing the lock of the lock member 6 is provided, the connected state can be achieved by a simple operation. [Selection] Figure 2

Description

  The present invention relates to a stick having a foldable mechanism.

  2. Description of the Related Art Conventionally, as a walking stick used for assisting walking, a walking stick configured to be foldable so as to be carried in a handbag when not in use is known. As a structure for enabling the folding of the walking stick, the shaft portion of the walking stick is divided into a plurality of pipes, and a connecting string having elasticity such as rubber is passed through each pipe. A configuration in which pipes are brought into close contact with each other is known. An example of a folding type stick using such a rubber string is described in Patent Document 1.

  Moreover, when connecting a some pipe as a structure for enabling folding of a stick, the structure which uses a spring and a wire instead of a rubber string, and adheres each pipe mutually with the urging | biasing force of a spring is patent document 2 It is described in. In the folding mechanism described in Patent Document 2, a wire having a wire retaining ring attached to both ends is urged by a push spring 9 at the time of connection, and the push spring 9 is compressed when the connection is released. The connection between the pipes can be released by eliminating the urging force of the push spring 9 by being held in a state (see [FIG. 4] and the like in cited document 2).

Utility Model Registration Gazette No. 3156004 JP 2004-329839 A

  The folding mechanism of the stick described in Patent Document 1 uses the one connecting string 55 having elasticity to change the first pipe body 3 to the first intermediate pipe body 5, the second intermediate pipe body 7, and the third intermediate pipe. The second pipe body 11 is connected through the body 9. Therefore, when changing from the folded state to the connected state, the first intermediate pipe body 5 and the second intermediate pipe body 7 are caused by the elastic force of the connecting string acting between the first pipe body 3 and the second pipe body 11. , The third intermediate pipe body 9 can be connected at a time. However, in such a configuration, the elastic force is exerted on the connecting cord 55 even when the folded state is set, so that each pipe body is folded in the folded state as shown in FIG. The elastic force acts so as to return to a straight line, and each pipe body is strongly moved so as to be in a straight line when trying to be connected, and there is a risk that the user may be injured.

  Unlike the walking stick described in Patent Document 1, the folding mechanism of the walking stick described in Patent Document 2 does not use an elastic connection string. Therefore, since each pipe is not moved so as to be in a straight line when trying to be connected like the stick described in Patent Document 1, there is no risk of injury to the user. However, since the stick described in Patent Document 2 is provided with a connecting mechanism for each connecting part, it is necessary for the user to insert the connecting part one by one when putting the stick into a connected state. There was a problem that it took.

  The present invention has been made to solve these problems, and the object of the present invention is that each component can be moved freely by the elasticity of the connecting string when the folded state is changed to the connected state. The present invention also provides a foldable walking stick that can be connected to each other with a simple operation.

In order to achieve the above object, a foldable walking stick of the present invention is arranged between a first cylinder having a grip, a second cylinder having a grindstone, and the first cylinder and the second cylinder. in at least one intermediate tube and, by being foldable cane with a being, the first cylinder is provided a locking member which have a flexible engaging portion, one end attached to said locking member A wire member having the other end attached to the second cylinder, a spring member biasing the locking member to one side, a stopper portion having a locked portion, and a pressing portion. And a lock release button disposed in the vicinity of the stopper portion, and the stopper portion is narrower at a narrower place than the lock portion of the locking member. The locking member moves to the other side against the biasing force of the spring member. When the stopper portion passes through the narrowest space, the stopper portion moves while being bent, and when the stopper portion is restored, the stopper portion is engaged with the portion to be locked. The stop release button releases the locking by pressing the locking portion of the locking member by the pressing portion when the locking member is locked by the stopper portion .

In this case, between the front Symbol first cylinder and the intermediate cylinder, the second wire be arranged that attach the fixed member to the opposite ends, an end of the first tube and the end portion of the intermediate cylinder Each of the connecting portions formed in the connecting portion includes a retaining member that passes through the wire and the second wire, and a contact portion that can contact the retaining member, and the connection is released. In the state, the fixing member attached to both ends of the second wire suspends the connecting portions via the retaining member and the contact portion, thereby moving the intermediate tube from the first tube. It is preferable to suspend it.

  In any of the above cases, it is preferable to use a constant load spring as the spring member.

  According to the present invention, the wire connecting the first cylinder having the grip and the second cylinder having the stone protrusion is urged by using the spring member provided in the first cylinder, and the wire is attached. Since the locking member can be locked, each part is not moved freely when it is changed from the folded state to the connected state due to the elasticity of the spring member urging the wire. A foldable cane that can be connected by operation can be obtained.

It is the whole figure which showed the connection state of the folding type stick concerning the present invention. It is the figure which showed the inside of the 1st pipe | tube 1 in the connection state of the folding type stick which concerns on this invention. It is the figure which showed the structure of the connection part between the 1st pipe | tube 1 and the intermediate | middle pipe | tube 3 of the folding type stick which concerns on this invention. It is the figure which showed the structure of the 2nd pipe | tube 2 of the folding type stick which concerns on this invention. It is the figure which showed the inside of the 1st pipe | tube 1 in the connection cancellation | release state of the folding type stick which concerns on this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a whole figure of the folding type | formula stick which concerns on this invention, (a) is the connection cancellation | release state, (b) is the figure which showed the folding state.

  A mode for carrying out the present invention will be described in detail with reference to the drawings.

  First, the structure of the folding stick according to the present invention will be described with reference to FIG. The foldable stick according to the present invention is disposed between a first cylinder 1 having a grip, a second cylinder 2 to which a rubber bumper is attached, and the first cylinder 1 and the second cylinder 2. It consists of intermediate cylinders 3 and 4. The first cylinder 1, the second cylinder 2, and the intermediate cylinders 3 and 4 are hollow inside.

  Next, the internal structure of the first cylinder 1 will be described with reference to FIG. In the first cylinder 1, a spring member 5 is disposed in the vicinity of the grip. The spring member 5 is configured by combining two conston (registered trademark, hereinafter abbreviated) springs 5a and 5b which are constant load springs, and a locking member 6 is attached to the tip of each conston spring. The locking member 6 has a locking claw 6a at its center, one end is connected to the two conston springs 5a and 5b, and the other end is connected to the wire 7. Yes. In these two conston springs 5a and 5b, the state shown in FIG. A stopper portion 1 a for hooking and locking the locking claw portion 6 a of the locking member 6 is formed inside the first cylinder 1. The stopper portion 1a is designed such that the narrowest interval is narrower than the lateral width of the locking claw portion 6a of the locking member 6, and the locking member 6 passes in the vicinity of the stopper portion 1a. Sometimes it passes through the locking claw 6a while being bent.

  A locking release button 8 is provided in the vicinity of the stopper portion 1a. The locking release button 8 has a head portion 8 a protruding to the outside of the first tube 1, and a tip end portion 8 b inside the first tube 1. The spring 8c as a whole is biased in the direction of jumping out of the first cylinder 1, but the tip 8b is in contact with the inner wall of the first cylinder 1 and serves as a retainer. When the lock release button 8 is pressed, the lock release button 8 is pushed into the first cylinder 1 against the spring 8c against the urging force, and the distal end portion 8b is the center of the first cylinder 1 in the radial direction. Move in the direction. Thereafter, when the release of the lock release button 8 is stopped, the lock release button 8 moves toward the outside of the first cylinder 1 by the urging force of the spring 8c, but the tip 8b is connected to the inner wall of the first cylinder 1. Stop at the point of contact.

  Next, the structure of the connection part of the 1st cylinder 1, the 2nd cylinder 2, and the intermediate cylinders 3 and 4 is demonstrated using FIG. Although the structure of the connection part between the 1st cylinder 1 and the intermediate | middle cylinder 3 is shown in FIG. 3, the structure of the connection part with another cylinder is also the same. A concave connecting portion 1 b is formed at the end of the first tube 1 on the side of the intermediate tube 3. The connecting portion 1b has a guide portion 1b-1. Further, a contact portion 1c is formed in the first tube 1 in the vicinity of the connecting portion 1b. The guide portion 1b-1 is formed as an inclined surface and is an inclined surface having the same angle as that of a tapered portion 3a-1 of the connecting portion 3a described later. The contact portion 1 c is formed to have an inner diameter that is narrower than the inner diameter of the first cylinder 1.

  At the end of the intermediate tube 3 on the first tube 1 side, a convex connecting portion 3a is formed. The connection part 3a has the taper part 3a-1 and the taper part 3a-2. Further, a contact portion 3b is formed in the vicinity of the connecting portion 3a inside the intermediate cylinder 3. As described above, the tapered portion 3a-1 is an inclined surface having the same angle as that of the guide portion 1b-1, and when the first tube 1 and the intermediate tube 3 are connected, the guide portion 1b-1 and the tapered portion 3a-. 1 is in surface contact. Further, the contact portion 3 b is formed to have an inner diameter that is narrower than the inner diameter of the intermediate cylinder 3.

  A retaining member 9 is disposed inside the first cylinder 1 on the center side of the first cylinder 1 with respect to the contact portion 1c. Two holes 9 a and 9 b are formed in the retaining member 9, and the outer diameter thereof is smaller than the inner diameter of the first tube 1 and larger than the inner diameter of the contact portion 1 c. The wire 7 is inserted into the hole 9a of the retaining member 9, and the wire 10 is inserted into the hole 9b.

  A retaining member 11 is disposed inside the intermediate cylinder 3 on the center side of the intermediate cylinder 3 with respect to the contact portion 3b. Two holes 11a and 11b are formed in the retaining member 11, and the outer diameter thereof is smaller than the inner diameter of the intermediate tube 3 and larger than the inner diameter of the contact portion 3b. The wire 7 is inserted into the hole 11a of the retaining member 11 and the wire 10 is inserted into the hole 11b. Unlike the fixing members 12 and 13 described later, these retaining members 9 and 11 are not fixed to the two wires 7 and 10. As can be seen from FIG. 3, the wire 10 is shorter than the wire 7, the connecting portion between the first tube 1 and the intermediate tube 3, and the connecting portion between the intermediate tube 3 and the intermediate tube 4. Two each, one in each.

  Fixing members 12 and 13 are fixed to both ends of the wire 10, that is, a position closer to the center of the first cylinder 1 than the retaining member 9 and a position closer to the center of the intermediate cylinder 3 than the retaining member 11. These fixing members 12 and 13 have an outer diameter larger than the holes 9b and 11b of the retaining members 9 and 11. Further, these fixing members 12 and 13 are fixed to the wire 10.

  The structure of the connecting portion between the intermediate tube 3 and the intermediate tube 4 is the same as the structure of the connecting portion between the first tube 1 and the intermediate tube 3. Although detailed description is omitted, as shown in FIG. 6A and the like, a concave connection portion 3c is provided at the end of the intermediate cylinder 3 on the intermediate cylinder 4 side, and the intermediate cylinder 4 A convex connecting portion 4a is provided at the end of the intermediate tube 3 side. The connecting portion 3c has a guide portion 3c-1, and the connecting portion 4a has tapered portions 4a-1 and 4a-2. In addition, a contact portion is formed in the vicinity of the connecting portion 3c inside the intermediate tube 3 and a contact portion is formed in the vicinity of the connecting portion 4a inside the intermediate tube 4, but these are not shown in the figure. doing. Further, similarly to the structure of the connecting portion between the first cylinder 1 and the intermediate cylinder 3, retaining members 9 and 11 are arranged inside the intermediate tubes 3 and 4. Although the wire 10 which attached the fixing members 12 and 13 to the both ends and the wire 7 is penetrated, illustration is abbreviate | omitted also about these.

  The structure of the connecting portion between the intermediate tube 4 and the second tube 2 is different from the structure of the connecting portion of the other tubes. First, the structure of the connecting portion of the intermediate cylinder 4 will be described. A concave connecting portion 4b is provided at the end of the intermediate tube 4 on the second tube 2 side. The connecting portion 4b has a guide portion 4b-1. Further, a contact portion is formed in the vicinity of the connecting portion 4b inside the intermediate cylinder 4, but this is not shown. Unlike the structure of the other connecting portions, the retaining member is not disposed inside the end portion of the intermediate tube 4 on the second tube 2 side. Further, the wire 10 is not disposed, and only the wire 7 is passed.

  Next, the structure of the second cylinder 2 will be described with reference to FIG. The second cylinder 2 is formed as one cylinder by overlapping two cylinders. Of these two cylinders, the cylinder 2A on the side of the intermediate cylinder 4 has the same outer diameter and inner diameter as the first cylinder 1 and the intermediate cylinders 3 and 4. The other cylinder 2B is disposed so as to overlap the cylinder 2A, and the inner diameter thereof is substantially the same as the outer diameter of the cylinder 2A.

  A convex connecting portion 2Aa is formed at the end of the tube 2A on the intermediate tube 4 side. The connecting portion 2Aa has a tapered portion 2Aa-1 and a tapered portion 2Aa-2. And the wire attachment part 2Ab is provided in the inside of cylinder 2A, and the edge part of the wire 7 is attached.

  The cylinder 2B is provided with a plurality of holes 2Ba. The cylinder 2A is provided with a button 2Ac that fits into the hole 2Ba, and the button 2Ac is urged outward in the radial direction of the cylinder 2A by a spring 2Ad. Since the cylinders 2A and 2B are configured in this way, the entire length of the second cylinder 2 can be adjusted depending on where the buttons 2Ac are inserted into the plurality of holes 2Ba of the cylinder 2B. When the button 2Ac is inserted into the hole 2Ba, the cylinder 2B is locked by the button 2Ac, and the cylinders 2A and 2B do not move in the angular direction or the length direction. When it is desired to change the entire length of the second cylinder 2, the button 2Ac is pushed in to release the lock of the cylinder 2B, and when the button 2Ac is aligned with the appropriate hole 2Ba, the button 2Ac is urged by the biasing force of the spring 2Ad. 2Ac is inserted into the hole 2Ba. By doing in this way, it becomes possible to adjust the length of the whole 2nd pipe | tube 2, and, as a result, to adjust the length of the whole folding-type stick which concerns on this invention.

  Next, a method for using the folding stick according to the present invention will be described with reference to FIGS. In the foldable cane according to the present invention, in the connected state, as shown in FIG. 1, the tubes from the first tube 1 to the second tube 2 are connected. In order to change the state from this state to the folded state, first, the second tube 2 is pulled in the length direction of the cane while pressing the first tube 1. Then, the wire 7 having one end attached to the wire attaching portion 2Ab of the cylinder 2A of the second cylinder 2 is also pulled simultaneously. Therefore, the Conston springs 5a and 5b are pulled through the locking member 6 to which the other end of the wire 7 is attached. In this manner, the locking member 6 is moved downward in FIG. 2 against the tension of the Conston springs 5a and 5b. Then, the locking member 6 passes through the stopper portion 1a while bending the locking claw portion 6a. When the locking claw portion 6a of the locking member 6 passes through the stopper portion 1a, the locking claw portion 6a returns to its original shape by a restoring force. When the operation of pulling the second cylinder 2 is stopped, the locking member 6 slightly returns upward in FIG. 2 due to the tension of the Conston springs 5a, 5b, but the movement of the locking claw 6a is caused by the stopper 1a. It stops when it is locked to the edge of. In this way, the locking member 6 is locked, and the state shown in FIG. 5 is obtained. And the state of the stick at this time is shown to Fig.6 (a).

  6A, the second cylinder 2 is suspended by the wire 7 because the end of the wire 7 is fixed to the wire fixing portion 2Ad. On the other hand, the intermediate cylinder 3 is not suspended by the wire 7 because the wire 7 is inserted through the hole 11a of the retaining member 11 but is not fixed. At the connecting portion between the first cylinder 1 and the intermediate cylinder 3, the wire 10 having the fixing members 12, 13 fixed at both ends is inserted into the holes 9b, 11b of the retaining members 9, 11, so that FIG. In this state, the contact portion 1c of the first cylinder 1 and the retaining member 9 are in contact with each other, the retaining member 9 and the fixing member 12 are in contact with each other, and at the same time, the contact portion 3b of the intermediate tube 3 and the retaining member 11 are in contact with each other. At the same time, the intermediate cylinder 3 is suspended from the first cylinder 1 by the wire 10 when the retaining member 11 and the fixing member 13 come into contact with each other. Similarly, the intermediate cylinder 4 is also suspended from the intermediate cylinder 3 by the wire 10.

  When the cylinders are folded back in order from the disconnected state shown in FIG. 6A, the folded state shown in FIG. 6B is obtained.

  When the folded state is changed to the connected state, the positions of the respective cylinders are returned from the state shown in FIG. 6B to the state shown in FIG. Thereafter, the latch release button 8 is pressed to establish a connected state.

  The operation when the locking release button 8 is pushed will be described with reference to FIGS. When the locking release button 8 is pressed, the tip 8b presses and bends the locking claw 6a of the locking member 6. When the locking claw portion 6a is bent and separated from the edge of the stopper portion 1a, the locking member 6 is pulled upward in FIG. 5 by the tension of the Conston springs 5a and 5b. Then, after passing through the stopper portion 1a, the locking claw portion 6a is restored to its original shape, and when the conston springs 5a, 5b are stopped from winding up, the state shown in FIG. 2 is restored.

  At this time, the second cylinder 2 is also pulled up by the tension of the Conston springs 5a and 5b via the wire 7 attached to the locking member 6. At that time, the connecting portion 2Aa of the tube 2A of the second tube 2, the connecting portion 4a of the intermediate tube 4, and the connecting portion 3a of the intermediate tube 3 are tapered portions 2Aa-2, 4a-2, 3a-2. Since the guide portions 4b-1, 3c-1, and 1b-1 are guided by the guide portions 4b-1, 3c-1, and 1b-1, respectively, the connecting portions are smoothly connected to each other even when pulled up vigorously. Then, the taper portions 2Aa-1, 4a-1, 3a-1 are brought into surface contact with the guide portions 4b-1, 3c-1, 1b-1, respectively, thereby completing the connection of the respective cylinders, as shown in FIG. Return to the connected state.

  As described above, the foldable stick according to the present invention is not connected to the wire 7 in the disengaged state shown in FIG. 6 (a). There is an advantage that it is very easy to arrange the tubes straight from the state.

  In addition, the foldable stick according to the present invention can be brought into the connected state by simply pressing the lock release button 8 from the connected released state, and therefore has an advantage that it is very easy to handle without requiring assembling work.

  Further, in the folding stick according to the present invention, the intermediate cylinder 3 is suspended from the first cylinder 1 in the disengaged state shown in FIG. Since it is suspended, the space | interval between cylinders will be maintained and there exists an advantage that it is easy to handle when making it into a folded state. If there is no mechanism for maintaining such an interval between the cylinders, when the second cylinder 2 is pulled, the intermediate cylinder 4 moves while being connected to the second cylinder 2, At the same time, the intermediate cylinder 3 moves while being connected to the intermediate cylinder 4. For this reason, it takes time and effort since the connected state between the cylinders must be individually released when the tube is folded. However, the foldable stick according to the present invention has an advantage that it is very easy to handle because the intermediate cylinders 3 and 4 are stopped at a suitable position to bring the intermediate cylinders 3 and 4 into the folded state only by pulling the second cylinder 2. There is.

  Moreover, the folding type stick which concerns on this invention has arrange | positioned the short wire 10 separately in the connection part of each pipe | tube. The reason for this is that, when the connection is released as shown in FIG. 6 (a), when a single long wire is passed from the connecting portion 1b of the first tube 1 to the connecting portion 2Aa of the second tube 2, Since it becomes easy to become entangled with the wire 7 inside each cylinder, in order to prevent such a situation, the short wires 10 are individually arranged at the connecting portions of the respective cylinders. By doing in this way, the wire 10 and the wire 7 are not entangled, and when the lock release button 8 is pushed, it can be suitably connected. However, a single wire 10 may be used as long as the wires cannot be entangled.

  In the embodiment, the wire 10 and the retaining members 9 and 11 are not arranged at the connecting portion between the intermediate tube 4 and the second tube 2, but between the intermediate tube 4 and the second tube 2. Similarly to the other connecting portions, the wire 10 having the fixing members 12 and 13 attached to both ends and the retaining members 9 and 11 through which the wire 7 and the wire 10 are inserted may be disposed in the connecting portion.

  In the embodiment, the second cylinder 2 is composed of the two cylinders 2A and 2B and the length adjusting mechanism is provided. However, the folding stick according to the present invention is provided with such a length adjusting mechanism. Is not required. However, since the appropriate length of the walking stick varies depending on the user, it is preferable that a length adjusting mechanism is provided.

  In the embodiment, a conston spring, which is a constant load spring, is used as the spring member 5, but the folding stick according to the present invention may use a spring other than the conston spring. However, it is preferable to use a constant load type spring because it is easy for the user to operate.

  In the embodiment, the two intermediate cylinders 3 and 4 are arranged between the first cylinder 1 and the second cylinder 2 and are composed of a total of four cylinders. The number of the sticks is not limited to four, and may be any number as long as a folding mechanism is provided.

  In the embodiment, the wire 10 and the retaining members 9 and 11 are arranged at the connecting portion between the first tube 1 and the intermediate tube 3 and the connecting portion between the intermediate tube 3 and the intermediate tube 4. The folding stick according to the present invention does not have to be provided with these members. However, as described above, the arrangement of these members facilitates handling in the disconnected state.

DESCRIPTION OF SYMBOLS 1 1st cylinder 1a Stopper part 1c, 3b Contact part 2 2nd cylinder 3, 4 Intermediate cylinder 5 Spring member 6 Locking member 6a Locking claw part 7, 10 Wire 8 Lock release button 9, 11 Retaining member 12 , 13 Fixing member

Claims (3)

A foldable walking stick comprising a first cylinder having a grip, a second cylinder having a grindstone, and at least one intermediate cylinder disposed between the first cylinder and the second cylinder In
Said first tube includes a locking member that have a flexible engaging portion, a wire member having one end the other end attached to the locking member is attached to the second cylinder, the A spring member urging the locking member to one side, a stopper portion having a locked portion, a locking release button having a pressing portion and arranged in the vicinity of the stopper portion, the equipped,
The stopper portion has a narrowest space, which is narrower than the locking portion of the locking member,
When the locking member moves to the other against the biasing force of the spring member, the locking member moves while bending the locking portion when passing through the narrowest space of the stopper portion, When the locking part is restored, it is locked with the locked part,
When the locking member is locked by the stopper portion, the locking release button releases the locking by the pressing portion pressing the locking portion of the locking member. A foldable walking stick. Before SL between the first cylinder and the intermediate cylinder, it has been disposed second wires that attach the fixed member at both ends,
The connecting portions formed at the end portion of the first tube and the end portion of the intermediate tube are respectively connected to the retaining member through which the wire and the second wire are inserted, and the retaining member. A contact portion that can contact,
In the disconnected state, the fixing members attached to both ends of the second wire suspend the connecting portions through the contact prevention member and the contact portion, so that the intermediate portion is removed from the first tube. The folding cane according to claim 1, wherein the tube is suspended.   The folding stick according to claim 1 or 2, wherein a constant load spring is used as the spring member.

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