JP5484014B2 - Adjustable position adjustment device for telescopic handle and saw and saw with the same - Google Patents

Description

  The present invention relates to an adjustment position fixing device serving as an expansion / contraction operation part of an extendable handle in a reed and saw used for pruning planted trees and cutting branches of trees, etc., and a reed and saw provided with the adjustment position fixing device It is about.

  As the structure of the rod and saw having the stretchable pattern, a thin cylinder is arranged inside the thick cylinder which is the outside, the inner cylinder is slid from the distal end side of the outer cylinder, and an engagement pin is provided on the outer cylinder side. The outer cylinder and the inner cylinder are adjusted to a predetermined length by providing a telescopic operation section having a fixing hole corresponding to the engaging pin on the peripheral surface of the inner cylinder and passing the engaging pin through the fixing hole. The structure to perform is known.

  As an eave having such an extendable pattern, for example, a telescopic pole pattern is configured by sliding the front pole on the base pole, an eave is arranged at the upper end of the pole pattern, and a fixed handle and an eaves operation are provided at the lower end. In a high-branch rod that is provided with a lever and is connected to the rod and the rod operating lever by a coupling mechanism of variable length provided in the pole handle, the coupling mechanism is connected to the rod operating lever and is located at the upper end of the base pole. A joining member fitted in the tip pole, a belt-like member connected to the collar and inserted through the joining member, a plurality of locking holes provided in the belt-like member at predetermined intervals, and the locking hole A plurality of locking holes provided in the front pole, a connecting pin provided in the intermediate member, which selectively engages and disengages with the locking hole of the band-shaped member, and the connection pin is separated from the band-shaped member side. A lifting spring that biases in the direction, A pressing member linked to the connecting pin, and a lashing pin that is provided so as to freely enter and exit the pole handle from the outside of the pole handle corresponding to the intermediate member, and is press-contacted to the pressing member through the locking hole of the front pole, A high branch ridge (for example, refer to Patent Document 1) provided with a pushing spring that urges the lashing pin in a direction to push the pin into the pole handle is known.

  In addition, it has two pipe members that can be extended and contracted, has a flange on the front end side of the inner small-diameter pipe member, and a handle on the rear end side of the outer large-diameter pipe member. In the long handle rod that slidably houses the pipe material inside the large-diameter pipe material, while the small-diameter pipe material detachably connects the connecting shaft on the small-diameter pipe material side and the connecting shaft on the large-diameter pipe material side via a joint member, A plurality of positioning holes are formed in the longitudinal direction of the pipe material, and an operation knob (operating lever) having a lock claw that is elastically biased into the positioning hole is provided on the tip opening side of the large-diameter pipe material, The insertion of the operation knob into the positioning hole of the lock claw makes it possible to fix the small-diameter pipe material to the large-diameter pipe material, and the joint member is molded to a size arranged inside the small-diameter pipe material, Upper opening and lower A hollow base having a switching means, a switching plate with a lock pin pivotably attached to the opening side of the hollow base, and the locking pin of the switching plate is always biased outward from the opening side. A connecting shaft on the large-diameter pipe material side is fixed to one end of the hollow base body, and the connecting shaft on the small-diameter pipe material side is movably disposed inside the hollow base body, while the small-diameter pipe material side The connecting shaft is provided with a plurality of recesses corresponding to the positioning holes, and when the switching plate is pressed by the lock claw of the operation knob, the lock pin of the switching plate is automatically locked to the corresponding recess of the connecting shaft. A long handle bag (see, for example, Patent Document 2) characterized by being configured to be able to be used is known.

  Furthermore, as having a configuration in which a plurality of fixing holes are arranged in the longitudinal direction, it is configured with a large diameter cylindrical rod and a small diameter cylindrical rod, and the cylindrical rod is inserted into the large diameter cylindrical rod In a handle that is formed to be stretchable, an engagement tool having a plurality of tapered tapered protrusions is arranged in the vicinity of the mouth portion of a large-diameter tube rod while being urged by an elastic body, while a small-diameter tube The rod is formed with a plurality of holes in the longitudinal direction into which the tip of the taper-shaped protrusion enters, and the tip of the taper-shaped protrusion is fitted into the hole in a biased state so that the small-diameter cylindrical rod can be fixed. In addition, a telescopic handle fixing means (see, for example, Patent Document 3) configured to release the fitting state of the tapered protrusions by operating the operation tool (operation lever) is known.

Japanese Utility Model Publication No. 6-19424 Japanese Utility Model Publication No. 6-75126 Japanese Patent No. 4253696

As for the Takae ridges according to Patent Document 1 and Patent Document 2, the length adjustment of the extendable handle can be adjusted by one-touch type (that is, the adjustment position after the slide only by releasing the engagement of the engagement pin with the operation lever only at the time of adjustment) The configuration in which the operation for fixing the expansion / contraction in the above is not required.
In each configuration, when adjusting the fixing position of the outer thick tube and the inner thin tube, the engaging pin (lock claw) can be removed from the fixing hole (positioning hole) by a single expansion / contraction operation. By sliding while releasing, positioning can be automatically adjusted to a predetermined length, which is excellent in that an operation for fixing expansion and contraction is unnecessary.

However, in the configuration in which the outer cylinder and the inner cylinder shown in Patent Document 1 and Patent Document 2 are adjusted to a predetermined length, the strength of the narrow cylinder is reduced by providing a fixing hole for passing a pin. Moreover, since the said location is a connection location, it is easy to apply the excessive load resulting from the weight and movement of a bag. For this reason, when the usage is rough, there is a defect that the edge of the fixing hole of the thin cylinder is deformed so as to expand, and the expansion / contraction operation is defective. Due to the deformation of the fixing hole, the strength of the thin cylinder is lowered, and the stretchable pattern may be broken.
In addition, as in Patent Document 1, if this fixing hole is provided also in the thick tube, the thick tube is also deformed so that the edge of the fixing hole expands, leading to a poor expansion / contraction operation. Similarly, the reduction in the strength of the thick cylinder leads to the result of the folding of the stretchable pattern.

  As means for preventing the expansion / contraction operation failure of the expansion / contraction pattern due to the deformation of the fixing hole and the bending of the expansion / contraction pattern, for example, means for increasing the thickness of the narrow cylinder in the longitudinal direction including the portion where the fixing hole is formed Can be considered.

  However, an increase in the partial thickness of the narrow tube increases the weight of the narrow tube and increases the weight of the entire rod and saw, which places an excessive burden on the user. Moreover, since the raw material cost to be used increases due to the increase in thickness, there is a disadvantage that the product is expensive.

  As a configuration that can reduce the load on the fixing holes shown above, multiple fixing holes are arranged in the longitudinal direction, and the load concentrated on the periphery of one hole is distributed and received, improving strength It is possible to make it. Although the Patent Document 3 does not particularly describe the operation and effect of providing a plurality of fixing holes themselves, it is considered that there is an effect of distributing the load from the configuration to the fixing holes.

  The invention according to Patent Document 3 includes a configuration in which a plurality of pins are engaged with a plurality of holes. From this configuration, compared to Patent Document 1 and Patent Document 2, a thick tube and a thin tube are provided. The strength of the tube can be maintained. However, the invention according to Patent Document 3 is configured such that the engaging pin enters the fixing holes of both the thick tube and the thin tube for the first time by tilting the operating tool (operating lever), and the engaging pin provided with the engaging pin. The engagement pin is positioned by the relationship between the combination tool and the cam mechanism formed on the operation tool. When the operating tool is released, the engaging pin slides without being fitted into the thin tube at the corresponding fixing hole position.

  For this reason, it is impossible to perform automatic fixing as in the inventions according to Patent Document 1 and Patent Document 2 described above, and fixing at the time of length adjustment is not possible unless the operation tool is tilted strongly every time the length is adjusted. For this reason, a force is required for the operation, and there is a possibility that the finger is injured during the operation. Further, the time required for the operation is long and troublesome.

  Moreover, in the said patent document 1 and the patent document 2, when the lock nail | claw (engagement pin) is made into multiple pieces like patent document 3, it is the structure which an engagement pin slides on the surrounding surface of a thin cylinder at the time of a slide. Therefore, different engaging pins are fitted into the fixing holes and locked, and the sliding operation becomes impossible.

  Therefore, from the difference between the configurations of Patent Document 1 and Patent Document 2 and the configuration of Patent Document 3, both the automatic position adjustment after sliding and the maintenance of the strength of the stretchable pattern (thick cylinder and narrow cylinder) are performed simultaneously. It could not be realized, and it was impossible to combine all of the weight reduction and cost reduction of the stretchable pattern (thick cylinder and thin cylinder) obtained along with this.

  On the other hand, conventionally, the structure of the adjustable position fixing device for the stretchable pattern has a complicated structure, and the work for attaching the stretchable pattern has been troublesome. For this reason, it is desirable that it can be attached to the stretchable pattern more easily.

  The present invention has been made in view of the above circumstances, and without deforming the fixing hole without changing the thickness in the vicinity of the fixing hole position in the expansion / contraction pattern, the expansion / contraction operation failure of the expansion / contraction pattern or the expansion / contraction pattern It is possible to prevent the folding of the handle and to push the operating lever strongly. Furthermore, it is easy to attach to the extendable handle, and it is a lightweight and excellent adjustable handle fixing device for the extendable handle. Further, it is an object of the present invention to provide a saw at low cost.

  The present invention makes it possible to expand and contract by arranging a thin tube inside the thick tube, and has a plurality of thin tube fixing holes in the longitudinal direction on the peripheral surface of the thin tube, an operation part near the tip of the thick tube, The portion includes a plurality of engaging pins arranged in the longitudinal direction and an elastic body that urges the engaging pins toward the thin tube fixing hole side, and the thick tube is formed by the engagement between the engaging pin and the thin tube fixing hole. In the adjustable position fixing device for the expansion / contraction pattern for connecting and fixing the thin cylinders, the plurality of thin cylinder fixing holes are arranged such that the diameter of the thin cylinder fixing hole on the front end side of the expansion / contraction pattern is narrower on the adjacent rear end side. The adjustable position of the expansion / contraction pattern characterized in that it is larger than the diameter dimension of the cylinder fixing hole, and the plurality of engaging pins are disposed in the large cylinder fixing hole in a detached state from the thin cylinder fixing hole. A fixing device is basically used as a means for solving the problems.

  The present invention presupposes the basic configuration described above, and the plurality of engagement pins include a first engagement pin having a length capable of sliding on the outer peripheral wall of the thin tube when the length of the expandable handle is adjusted, and the thin tube. A telescopic pattern adjusting position fixing device characterized by having a second engaging pin that does not slide on a peripheral wall and has a length that is locked in a thick tube fixing hole of a thick tube. Means.

  Further, the present invention relates to any one of the above-described adjustable position fixing devices for a telescopic pattern, a joint case attached to the tip of the thick tube, and a plurality of engagements pivotally attached to a pivot provided in the width direction in the joint case. A telescopic pattern adjusting position fixing device having a joint lever having a joint pin, wherein the joint lever is provided with a swing shaft for pivotally mounting the base end of the engaging pin. Is a means for solving the problem.

  Furthermore, the present invention provides a joint case that is attached to the tip of a thick cylinder, and is provided in the width direction in the joint case, with respect to any one of the above-described adjustable position fixing devices for the telescopic pattern, which is based on the basic configuration. In a telescopic handle adjusting position fixing device having a joint lever pivotally attached to a pivot and having a plurality of engagement pins, the first engagement pin of the plurality of engagement pins is pivotally attached to a base end thereof. A telescopic pattern adjustment position fixing device including a moving shaft and the second engagement pin formed integrally with the joint lever is a means for solving the problem.

  Moreover, this invention makes provision of the scissors and saw provided with the above structure a means for solving a subject.

  According to the first aspect of the present invention, the thin cylinder is disposed inside the thick cylinder so as to be stretchable, and the peripheral surface of the thin cylinder is provided with a plurality of holes for fixing the thin cylinder in the longitudinal direction, near the tip of the thick cylinder. The operation unit includes a plurality of engagement pins arranged in the longitudinal direction and an elastic body that urges the engagement pins toward the thin tube fixing hole, and the engagement pin and the thin tube fixing hole In the adjustable position fixing device of the telescopic pattern for connecting and fixing the thick tube and the thin tube by engaging the plurality of thin tube fixing holes, the diameters of the thin tube fixing holes on the distal end side of the telescopic pattern are adjacent to each other. The diameter is larger than the diameter of the fitting thin tube fixing hole on the rear end side, and the plurality of engagement pins are arranged in the large tube fixing hole in a detached state from the thin tube fixing hole. Therefore, the engagement pin attached to the expansion / contraction operation part is once removed from the fixing hole and the thin cylinder is thickened. By simply sliding it, the engagement pin always presses and slides on the outer peripheral wall of the narrow cylinder when sliding to adjust the length of the telescopic handle, so the engagement pin is automatically fixed at the corresponding fixing hole position. It can be engaged with the service hole and can be adjusted without having to perform any operation to fix the expansion and contraction at the adjusted position.

  The plurality of engagement pins and fixing holes provided for maintaining the strength of the stretchable handle do not fit into the other fixing holes because the engaging pins always press and slide on the outer peripheral wall of the thin cylinder when sliding. Where the plurality of thin tube fixing holes in the present invention cannot slide, the diameter size of the thin tube fixing hole on the distal end side of the expandable handle is larger than the diameter size of the adjacent thin tube fixing hole on the rear end side. By making it large, the pin corresponding to the pin for fixing the thin tube on the front end side can slide without being fitted in the hole for fixing the thin tube corresponding to the pin on the rear end side, and the strength of the expansion / contraction pattern It is possible to achieve both maintenance and safety and easiness of telescopic operation.

  In addition, since both the thick tube fixing hole and the thin tube fixing hole are engaged with the engaging pin, the strength of the thick tube and the thin tube can be maintained by the configuration, so that a part of the stretchable pattern is formed thick. There is no need to take any means and it does not cause deformation of the conventional fixing hole, so there is no malfunction of the expansion and contraction caused by the deformation of the fixing hole, and the expansion and contraction pattern does not break. It is possible to provide a telescopic pattern adjusting position fixing device, and a barb and a saw including the same, in a lightweight and inexpensive manner.

  Furthermore, by disposing the plurality of engaging pins in the thick tube fixing hole in a state of being detached from the thin tube fixing hole, the adjustment position fixing device is fixed to the thick tube using a screw or the like. Even if it is not, the adjusting position fixing device does not always come off from the thick tube, and it can be attached to the thick tube with a simpler structure, and it is equipped with an adjusting position fixing device with a lighter and cheaper stretch pattern. Can provide firewood and saw.

  According to the invention according to claim 2, on the premise of the configuration of the invention according to claim 1, the plurality of engagement pins have a length capable of sliding on the outer peripheral wall of the thin cylinder when the length of the extendable handle is adjusted. Since it has the first engagement pin and the second engagement pin that does not slide on the peripheral wall of the thin tube and is locked in the thick tube fixing hole of the large tube, the outer periphery of the thin tube Only the engagement pin that swings the wall is automatically engaged in the thin tube fixing hole, and the other engagement pins are also engaged with the corresponding thin tube fixing holes together with the engagement pin. As a result, the number of engaging pins that slide on the peripheral wall of the outer cylinder can be reduced, the resistance to sliding during the expansion and contraction operation can be reduced, and the operability can be improved.

  According to the invention of claim 3, on the premise of the configuration of the invention of claim 1 or claim 2, the joint case attached to the tip of the thick tube, and the pivot provided in the width direction in the joint case And a joint lever provided with a plurality of engagement pins, the joint lever has a swing shaft for pivotally attaching the proximal end of the engagement pin. Regardless of the movement of the lever around the pivot axis, each engagement pin can be smoothly and smoothly engaged and disengaged linearly without requiring high accuracy with respect to the corresponding hole for fixing the thin tube. Operation can be enabled. In addition, since it has a swing shaft, when the engagement pin urges the outer periphery of the thin tube, the impact when the engagement pin passes through or engages with the thin tube fixing hole is reduced. Smooth and highly flexible telescopic operation can be made possible.

  According to the invention of claim 4, on the premise of the configuration of the invention of claim 2 or claim 3, the joint case attached to the distal end portion of the thick tube, and the width within the joint case is provided. In a telescopic handle adjusting position fixing device having a joint lever pivotally attached to a pivot and having a plurality of engagement pins, the first engagement pin of the plurality of engagement pins is pivotally attached to a base end thereof. Since the second engaging pin is formed integrally with the joint lever, the operation effect of the invention according to claim 2 or 3 can be obtained, and the number of parts can be reduced and the cost can be reduced. There is an advantage that the adjustable position fixing device 1 for the stretchable pattern can be provided.

  According to the invention according to claim 5, the invention according to any one of the above-mentioned claims is obtained by providing a high branch ridge having the structure according to any one of the above-mentioned claims 1, 2, 3, or 4. When pruning a branch at a high place, etc., the durability against the external impact such as the load generated when cutting the branch and the impact when the blade edge is lowered from the high place to the ground. It is possible to improve and prevent sliding failure and breakage of the stretchable pattern, and it is possible to provide a high-quality high-edition kite that is lighter and less expensive.

  According to the invention according to claim 6, the saw according to any one of the claims 1, 2, 3, or 4 is used. When working on cutting high-altitude branches, etc., it is more effective in improving the durability against loads generated when a saw blade bites into a branch, preventing sliding failure and breakage of the stretchable pattern, and lighter In addition, a high-quality saw can be provided at a low cost.

It is a side view which shows the high branch ridge provided with the adjustment position fixing device of the expansion-contraction pattern which concerns on Example 1 of this invention. It is an expanded vertical sectional view which shows the normal state in the adjustment position fixing device of the expansion-contraction pattern which concerns on Example 1 of this invention. It is an AA expanded sectional view which shows the normal state in the adjustment position fixing device of the expansion-contraction pattern which concerns on Example 1 of this invention. It is an expanded longitudinal cross-sectional view which shows the operation state of the joint lever in the adjustment position fixing device of the expansion-contraction pattern which concerns on Example 1 of this invention. It is an AA expanded sectional view which shows the operation state of the joint lever in the adjustment position fixing device of the expansion-contraction pattern which concerns on Example 1 of this invention. It is an expanded longitudinal cross-sectional view which shows the normal state in the adjustment position fixing device of the expansion-contraction pattern which concerns on Example 2 of this invention. It is an expanded longitudinal cross-sectional view which shows the normal state in the adjustment position fixing device of the expansion-contraction pattern which concerns on Example 3 of this invention. It is an expanded longitudinal cross-sectional view which shows the operation state of the joint lever in the adjustment position fixing device of the expansion-contraction pattern which concerns on Example 3 of this invention.

The present invention makes it possible to expand and contract by arranging a thin tube inside the thick tube, and has a plurality of thin tube fixing holes in the longitudinal direction on the peripheral surface of the thin tube, an operation part near the tip of the thick tube, The portion includes a plurality of engaging pins arranged in the longitudinal direction and an elastic body that urges the engaging pins toward the thin tube fixing hole side, and the thick tube is formed by the engagement between the engaging pin and the thin tube fixing hole. In the adjustable position fixing device for the expansion / contraction pattern for connecting and fixing the thin cylinders, the plurality of thin cylinder fixing holes are arranged such that the diameter of the thin cylinder fixing hole on the front end side of the expansion / contraction pattern is narrower on the adjacent rear end side. The diameter of the hole for fixing the cylinder is larger than the diameter of the hole, and the plurality of engaging pins are arranged in the hole for fixing the large cylinder in a detached state from the hole for fixing the thin cylinder. A first engaging pin that is slidable on the outer peripheral wall of the thin tube, and a length that is not slid on the peripheral wall of the thin tube and is locked in the thick tube fixing hole of the thick tube Made and a second engagement pin, since the first engagement pin is provided with a pivot shaft for pivotally its proximal end, the second engaging pin has a configuration which is formed integrally on the joint lever,
By simply detaching the engaging pin attached to the telescopic operation part from the fixing hole and sliding the narrow tube relative to the thick tube, the outer wall of the thin tube is always the first when sliding in the length adjustment of the telescopic pattern. Since the engaging pin is pressed and slid, the engaging pin automatically engages with the fixing hole at the corresponding fixing hole position, so that it is possible to adjust without any operation at the adjusted position. The load is distributed by the engagement of the engagement pin and the fixing hole, and the sliding operation of the expansion / contraction pattern due to deformation of the fixing hole is prevented and the sliding operation is prevented. The first engagement pin and the second engagement pin can be smoothly slid without being fitted into the hole, and both the maintenance of the strength of the stretchable pattern and the safety and ease of the stretching operation can be achieved. Since the first engagement pin swings in a certain range in the front-rear direction, the first engagement pin An excellent adjustable position fixing device for an expansion / contraction pattern, which can relieve the accuracy required to be able to engage with and disengage from a fixed hole, and further enable a reliable and stable expansion / contraction operation with light weight, low cost, and the like A saw and saw equipped with

  FIG. 1 is a Takaeda kite equipped with a telescopic pattern adjusting position fixing device according to a first embodiment of the present invention. FIG. 2 is a telescopic pattern adjusting position fixing device according to the first embodiment, which is engaged with a cylinder. 3 is a longitudinal sectional view showing a state where the pin is engaged, FIG. 3 is an AA enlarged sectional view showing a normal state in the adjustable position fixing device for an extendable handle according to the first embodiment, and FIG. 4 is according to the first embodiment. FIG. 5 is an AA enlarged cross-sectional view showing the operation state of the joint lever in the adjustable position adjusting device for the elastic pattern according to the first embodiment. It is.

  The adjustment position fixing device 1 serving as an expansion / contraction operation portion of the expansion / contraction pattern according to the first embodiment of the present invention can be slid within the thick tube 3 when adjusting the length of the expansion / contraction pattern. The thin tube 4 is fixed and slidable. As shown in FIGS. 1 to 5, the joint case 11 attached to the tip of the thick tube 3 and the pivot 100 in the joint case 11 are pivoted. The joint lever 10 is attached and includes a plurality of engaging pins. The plurality of engagement pins (first engagement pin 12 and second engagement pin 13) in the first embodiment have holes formed in the bottom surface 112, the thick tube 3, and the thin tube 4 of the joint case 11, respectively. In an overlapped state, the holes are engaged through the holes. Each configuration will be described below.

  The joint case 11 is formed by integrally forming the peripheral surface of the distal end portion of the thick tube 3 and the tubular portion 110 that covers the distal end portion and the distal end surface, and a holding portion 111 for holding the joint lever 10. . The holding part 111 has a shape opened upward, and the pivot 100 in the short direction is provided in the center of the holding part 111 at the center. The pivot 100 serves as a central axis for the operation of the joint lever 10.

Further, a case hole (first case hole 113 and second engagement pin 11) through which two engagement pins (first engagement pin 12 and second engagement pin 13) are passed through the bottom surface 112 in the holding portion 111 of the joint case 11. Two case holes 114) are formed continuously in the longitudinal direction.
Among these, the first case hole 113 has a diameter of 6.2 mm and is provided at a location corresponding to the first thick cylinder fixing hole 30 formed in the thick cylinder 3 and having the same size. The second case hole 114 has a diameter of 4.2 mm and is approximately the same size as the second thick cylinder fixing hole 31 formed in the thick cylinder 3. Of these two case holes, the outer diameter dimension of the first case hole 113 disposed on the distal end side is larger than the outer dimension dimension of the second case hole 114 disposed on the proximal end side.

  As shown in FIGS. 1 to 5, the joint lever 10 has a “<” shape when viewed from the side, and has two engagement pins (that is, a first engagement pin 12 and a second engagement pin) at one end thereof. The joint pins 13) are arranged in the longitudinal direction, and the other end side is a pressing portion 102 for operating the joint lever 10 with a finger, and the pivot 100 is passed through the central portion that functions as a fulcrum of the joint lever 10. A shaft hole is provided, and a torsion coil spring 101 is provided around the pivot 100. Reinforcing ribs 104 are provided on the inner side wall of the pressing portion 102 to ensure the strength of the pressing portion.

  In order to attach the first engagement pin 12 and the second engagement pin 13 to the joint lever, the first shaft pin 120 and the second shaft pin 130 are sequentially arranged from the front end side in the longitudinal direction in the joint lever 10. It is provided. The first engagement pin 12 is pivotally attached to the first shaft pin 120, and the second engagement pin 13 is pivotally attached to the second shaft pin 130. The first shaft pin 120 and the second shaft pin 130 serve as rocking shafts for the first engagement pin 12 and the second engagement pin 13, respectively.

  The engaging portion of the first engaging pin 12 has a diameter of 6 mm, the engaging portion of the second engaging pin 13 has a diameter of 4 mm, and the first engaging pin 12 has a larger diameter and a longer length. The first engagement pin 12 has a columnar shape with a diameter of 6 mm and has a chamfered corner portion at the tip.

  The second engagement pin 13 has a cylindrical shape with a diameter of 6 mm on the base end side that is pivotally attached to the second shaft pin 130 and functions as a pin up to the tip, and chamfers the corner of the tip. Shape.

  With the above configuration, the torsion coil spring 101 always urges the pressing portion 102 of the joint lever 10 upward and urges the first engagement pin 12 and the second engagement pin 13 downward. Therefore, in the normal state, as shown in FIGS. 2 and 3, the first engagement pin 12 and the second engagement pin 13 are provided in the first thin tube fixing hole 40 and the second thin tube fixing hole 41. It will be in the fitted state. Further, when sliding, as shown in FIGS. 4 and 5, the first engaging pin 12 and the second engaging pin 13 are configured to slide while always pressing the peripheral surface of the thin tube 4. Further, the first engagement pin 12 and the second engagement pin 13 have a swing shaft, so that the first thin tube fixing hole 40 and the second thin tube fixing pin correspond to the movement of the joint lever 10. It is configured to fit smoothly along the hole 41.

  A joint case 11 for holding the joint lever 10 is attached to the distal end portion of the thick tube 3 so as to cover the entire circumference and the distal end surface of the thick tube 3. As described above, the first thick tube fixing hole 30 (diameter 6.2 mm) corresponding to the first case hole 113 and the second case hole 114 of the joint case 11 is fixed to the tip of the thick tube 3, and the second thick tube is fixed. A hole 31 (diameter 4.2 mm) is provided.

  Corresponding portions of the thin tube 4 are the first thin tube fixing hole 40 corresponding to the first engaging pin 12 and the first thick tube fixing hole 30 of the large tube 3, the second engaging pin 13 and the first tube. A second thin tube fixing hole 41 corresponding to the double thick tube fixing hole 31 is provided. The diameter of the first thin tube fixing hole 40 is the same as that of the first thick tube fixing hole 30 (diameter 6.2 mm), and the diameter of the second thin tube fixing hole 41 is the second large tube fixing hole. The dimensions are the same as 31 (diameter 4.2 mm).

  The structure of the Takae heel S shown in the first embodiment is a configuration in which the rod rod 7 interlocked with the handle 9 on the base end side and the tip hoop 50 that operates the heel 2 can be interlocked and detached. The interlocking and detachment are realized by deformation of the leaf spring 51 in the inner case 8.

  A connecting plate 6 is coupled to the tip of the rod rod 7. The rod 7 is connected to the connecting plate 6 so as to be rotatable with respect to the longitudinal central axis.

  In addition, the connection pin 60 protrudes from the lower surface of the connection plate 6. The portion of the connecting plate 6 having the connecting pin 60 and the tip hoop 50 for operating the flange 2 are arranged substantially parallel in the vertical direction with the connecting plate 6 facing up in the joint case 11, and further, the leaf spring 51 is provided. The plate spring 51 itself is attached to the connection plate 6 in a normal state, and a load is not applied to the lower tip hoop 50. The front hoop 50 is provided with a front hoop hole 52 for locking the connection pin 60 of the connection plate 6.

  The joint lever 10 always urges the pressing portion 102 of the joint lever 10 upward and urges the first engagement pin 12 and the second engagement pin 13 downward by the torsion coil spring 101 described above. For this reason, in the normal state, as shown in FIGS. 2 and 3, the first engagement pin 12 includes the first case hole 113 of the joint case 11, the first thick cylinder fixing hole 30, and the first thin cylinder fixing A downward load is applied to the leaf spring 51, the connecting plate 6, and the connecting pin 60 through the hole 40.

  Since the pressing force of the first engagement pin 12 using the torsion coil spring 101 is larger than the repulsive force of the leaf spring 51, the connection pin 60 presses against the tip hoop 50 and applies a load in a normal state. When the pressing portion 102 of the lever 10 is pushed to remove the load from the first engagement pin 12, the connecting plate 6 including the connecting pin 60 is lifted by the restoring force of the leaf spring 51 and connected from the front hoop hole 52 of the front hoop 50. The pin 60 is detached, the load on the front hoop 50 is eliminated, and the front hoop 50 can be slid.

  The second engagement pin 13 does not interfere with the leaf spring 51, and is held in a state of penetrating the second case hole 114, the second thick cylinder fixing hole 31, and the second thin cylinder fixing hole 41, It is used exclusively for fixing the thick tube 3 and the thin tube.

A procedure for changing the adjustment position of the high branch ridge S having the stretchable pattern adjustment device according to the first embodiment will be described with the above configuration. First, the pressing portion 102 of the joint lever 10 is pressed. Thus, the first engagement pin 12 and the second engagement pin 13 are lifted and detached from the first thin tube fixing hole 40 and the second thin tube fixing hole 41.
Here, the first engagement pin 12 and the second engagement pin 13 have a first shaft pin 120 and a second shaft pin 130 which are swinging shafts on the base end side, respectively, so that the first thin tube fixing pin is provided. Along the inside of the hole 40 and the second thin tube fixing hole 41, it is smoothly lifted in the upward direction.

  With the tip of the first engagement pin 12 entering the first thick tube fixing hole 30 and the tip of the second engagement pin 13 entering the second thick tube fixing hole 31, the slide of the thin tube 4 is performed. It becomes possible. When the thin tube 4 is slid, the tip hoop 50 slides together with the thin tube 4.

  Since it is not necessary to raise the joint lever 10 during the slide, the finger can be released from the joint lever 10. When the tip hoop 50 is slid while the joint lever 10 is in a normal state, the first engagement pin 12 of the joint lever 10 contacts the outer periphery of the thin tube 4 by the load of the torsion coil spring 101 in the joint lever 10. Slide in contact. The second engagement pin 13 is formed shorter than the first engagement pin 12 so that it does not contact the outer periphery of the thin tube 4. Only the first engagement pin 12 contacts and slides on the outer periphery of the thin tube 4, and the second engagement pin 13 does not contact the outer periphery of the thin tube 4, thereby reducing the frictional resistance during sliding and sliding operation. Can be performed more smoothly.

  Then, at the next corresponding positions of the first thin tube fixing hole 40 and the second thin tube fixing hole 41, the joint lever 10 is automatically moved by the load of the torsion coil spring 101 in the joint lever 10. One engagement pin 12 fits into the first thin tube fixing hole 40, and the second engagement pin 13 fits into the second thin tube fixing hole 41. Here, the first engagement pin 12 and the second engagement pin 13 have a first shaft pin 120 and a second shaft pin 130 which are swinging shafts on the base end side, respectively, so that the first thick cylinder It moves smoothly in the substantially vertical direction along the fixing hole 30 and the second thick cylinder fixing hole 31, and is inserted into the first thin cylinder fixing hole 40 and the second thin cylinder fixing hole 41. .

  In the process of sliding the narrow cylinder 4 with respect to the thick cylinder 3, the first engagement pin 12 slides temporarily on the second narrow cylinder fixing hole 41. Here, since the outer dimension of the first engagement pin 12 is formed larger than the outer dimension of the second thin tube fixing hole 41, the first engagement pin 12 fits into the second thin tube fixing hole 41. The first engagement pin 12 can be slid as it is. Further, since the first engagement pin 12 has a shape with a chamfered corner at the tip, when the first engagement pin 12 slides on the second thin tube fixing hole 41, the second small pin. Even if it comes into contact with the edge of the tube fixing hole 41, it can be smoothly slid without causing a large impact or vibration.

  The 2nd engagement pin 13 will be in the state hold | maintained in the state which penetrated the above-mentioned 2nd case hole 114, the 2nd thick cylinder fixing hole 31, and the 2nd thin cylinder fixing hole 41. FIG.

  The first engaging pin 12 presses the leaf spring 51 and the connecting plate 6 downward immediately after fitting into the first thin tube fixing hole 40. The connecting pin 60 projecting downward from the connecting plate 6 is fitted into the tip hoop hole 52 of the tip hoop 50 located below the connecting pin 60. When the connecting pin 60 is fitted into the tip hoop hole 52, the rod rod 7 and the tip hoop 50 are connected. By operating the handle 9, the rod 2 is opened and closed via the rod rod 7 and the tip hoop 50. It becomes possible.

  Since the thin tube 4 and the tip hoop 50 slide together, the relative positions of the first thin tube fixing hole 40 and the tip hoop hole 52 do not change, so the first engagement pin 12 is the first thin tube fixing hole. From the process of fitting to 40 until the connecting pin 60 is locked in the tip hoop hole 52, a series of operations can be performed substantially simultaneously. For this reason, two connections, that is, the connection between the thick tube 3 and the thin tube 4 and the connection between the rod rod 7 and the tip hoop 50 are completed substantially at the same time. Can be used.

  Furthermore, since both the first engagement pin 12 and the second engagement pin 13 are disposed in the thick tube fixing hole in a state of being detached from the thin tube fixing hole, the adjustment position fixing device is arranged in the thick tube. On the other hand, the adjustment position fixing device does not always come off from the thick tube without being fixed using a screw or the like, and can be attached to the thick tube with a simpler configuration. In other words, the joint lever can be attached / detached only by attaching / detaching the pivot 100 of the joint lever attached to the joint case, and the adjustment position fixing device 1 can be attached / detached to / from the thick tube. Can be improved.

  As described above, even when various loads are generated due to work when using the high branch ridge S, the plurality of engagement pins and the plurality of fixing holes corresponding thereto are used to fix the stretchable pattern. The load applied to the means can be distributed, and the one-touch type stretchability as in the conventional case is made possible, the deformation of the fixing pattern is prevented and the expansion / contraction movement of the expansion / contraction pattern is not caused. Breaking can be prevented. Along with this, there is no need for means such as partially changing the thickness in order to reinforce the stretchable pattern, and it is possible to reduce the weight and cost of the stretchable pattern.

  FIG. 6 is an enlarged longitudinal sectional view showing a normal state in the adjustable position fixing device for the extendable handle according to the second embodiment of the present invention, and FIG. 7 shows the joint lever in the adjustable position fixing device for the extendable handle according to the second embodiment of the present invention. It is an enlarged vertical sectional view showing an operation state.

  The adjustment position fixing device 1 serving as the expansion / contraction operation unit of the expansion / contraction pattern according to the second embodiment of the present invention has a configuration in which the second engagement pin 13 in the adjustment position processing device 1 according to the first embodiment is integrally formed with the joint lever 10. It is a thing. Therefore, since other parts are the same as those in the first embodiment, the description of the same configuration is omitted.

  As shown in FIGS. 6 and 7, the joint lever 10 according to the second embodiment has a first shaft pin on the distal end side in the joint lever 10 in order to attach the first engagement pin 12 to the joint lever 10. 120 is provided. The first engagement pin 12 is pivotally attached to the first shaft pin 120. On the other hand, in the second embodiment, the second shaft pin 130 in the first embodiment is not provided, and the second engagement pin 13 is erected on the lower surface 13 of the joint lever 10. For this reason, the first shaft pin 120 becomes a swing shaft of the first engagement pin 12, and the second engagement pin 13 does not have a swing shaft.

  Since the second engagement pin 13 according to the second embodiment does not have a swing shaft, the second thick cylinder fixing hole 31 and the second thin cylinder fixing hole are arranged in a circular arc when viewed from the side by the operation of the joint lever 10. Since it engages with and disengages from the hole 41, the front side is formed into a tapered curved surface for smooth operation.

  Also in the second embodiment, unlike the first engagement pin 12, the second engagement pin 13 has a length that does not contact the outer periphery of the thin tube 4. Accordingly, also in the third embodiment, only the first engagement pin 12 contacts and slides on the outer periphery of the thin tube 4 and the second engagement pin 13 does not contact the outer periphery of the thin tube 4, so that when sliding. The frictional resistance is reduced and the sliding operation can be performed more smoothly.

  In the fixed state, as shown in FIG. 6, as in the first embodiment, the first engagement pin 12 passes through the first thick tube fixing hole and the first thin tube fixing hole, and the leaf spring 51 is passed through. Press. The second engagement pin 13 passes through the second thick cylinder fixing hole 31 and the second thin cylinder fixing hole 31, and the engagement state with these holes is maintained.

  When the telescopic pattern is slidable, as shown in FIG. 7, the first engagement pin 12 is detached from the first thin tube fixing hole 40 and fixed to the first thick tube, as in the first embodiment. The second engagement pin 13 is detached from the second thin tube fixing hole 31 and passed through the second thick tube fixing hole 31, and then the thin tube 4 slides. Thus, the first engagement pin 12 slides on the outer periphery of the thin cylinder 4.

  Also, according to the configuration of the second embodiment, similarly to the first embodiment, by having a plurality of engaging pins and a plurality of fixing holes corresponding thereto, it is possible to distribute the load applied to the fixing means for the stretchable pattern. In addition, the conventional one-touch stretchability can be achieved, and the fixing hole can be prevented from being deformed so that the stretchable pattern does not cause a malfunction, and the stretchable pattern can be prevented from breaking.

  And since the structure of the present Example 2 has integrated the 2nd engagement pin 13 with the joint lever 10, it has the advantage that the number of parts can be reduced and the adjustment position fixing device 1 of an expansion / contraction pattern can be provided more inexpensively.

  Further, similarly to the first embodiment, the first engagement pin 12 and the second engagement pin 13 are both disposed in the thick tube fixing hole in a detached state from the thin tube fixing hole. Even if the adjustment position fixing device 1 is not fixed to the thick tube 3 using a screw or the like, the adjustment position fixing device 1 is not always detached from the thick tube 3, and the thick tube 3 can be configured with a simpler configuration. Can be attached. That is, the joint lever 10 can be attached / detached only by attaching / detaching the pivot 100 of the joint lever 10 attached to the joint case 11, and the adjustment position fixing device 1 can be attached / detached to / from the thick tube 3. , Repairability and ease of maintenance can be improved.

  A third embodiment of the present invention is shown in FIG. The configuration of the third embodiment is a configuration in which the position of the adjustment position fixing device 1 with respect to the thick tube 3 is attached to a position on the front side as compared with the second embodiment. That is, in this configuration, the thick cylinder 3 does not include the first thick cylinder fixing hole 30 corresponding to the first engagement pin 12, but has the second thick cylinder fixing hole 31 corresponding to the second engagement pin 13. I have. The thin tube 4 includes a first thin tube fixing hole 40 corresponding to the first engagement pin 12 and a second thin tube fixing hole 41 corresponding to the second engagement pin 13. The first case hole 113 of the joint case 11 and the first thin tube fixing hole 40 coincide, and the second case hole 114 and the second thick tube fixing hole 31 and the second thin tube fixing hole 41 coincide. In this state, the first engagement pin 12 and the second engagement pin 13 are engaged.

  That is, as shown in the third embodiment of the present invention, it is not always necessary to provide the same number of thick tube fixing holes as the number of thin tube fixing holes in the present invention.

  In addition, there is no first thick tube fixing hole corresponding to the first engagement pin 12, but the second engagement pin 13 is in a state of being detached from the second thin tube fixing hole 41 and fixed to the second thick tube. Since the adjustment position fixing device 3 is always fixed to the thick tube 3 by using a screw or the like, the adjustment position fixing device 3 is always thick, as in the second embodiment. The contact position fixing device 1 can be attached to the thick tube 3 with a simpler configuration without being detached from the tube 3. That is, the joint lever 11 can be attached / detached only by attaching / detaching the pivot 100 of the joint lever 10 attached to the joint case 11, and the adjustment position fixing device 1 can be attached / detached to / from the thick tube 3. The ease of maintenance can be improved.

Further, in the present invention, the plurality of engaging pins and the corresponding plurality of thick tube fixing holes and thin tube fixing holes corresponding to the plurality of engaging pins and the narrow tube fixing holes have a larger diameter as the fixing hole on the distal end side of the telescopic pattern in the longitudinal direction Three or more thick tube fixing holes and thin tube fixing holes can be arranged in a row. The load can be distributed more by increasing the number of fixing holes and engaging pins.
In addition, the specific size of the diameter is not limited to that of the above embodiment, and can be appropriately determined according to the size and thickness of the thick tube and the thin tube, the size of the engagement pin, and the like.

  Moreover, although the present Example disclosed the structure which fixes the tip hoop 50 in the inner case 8 via the leaf | plate spring 51 and the connection board 6, this invention is not limited to this, Other than leaf | plate springs 51, such as a compression coil spring, The elastic body can be used, and the type and arrangement of the elastic body can be changed within the scope of design matters.

  Furthermore, although the structure using the torsion coil spring in the joint case in the present embodiment was disclosed, the present invention is not limited to this, and the compression coil spring is interposed between the inner end of the joint lever and the bottom surface of the joint case. Changing the type and arrangement of the elastic body can be performed within the range of design matters.

  Further, in the present embodiment, the high-edition scissors S provided with the adjusting position fixing device 1 are shown, but the present invention is not limited to this, and a saw with a saw blade attached instead of the tip scissors 2 may be used. it can.

DESCRIPTION OF SYMBOLS 1 Adjustment position fixing device 10 Joint lever 100 Pivot 101 Torsion coil spring 102 Press part 103 Lower surface 104 Reinforcement rib 11 Joint case 110 Cylindrical part 111 Holding part 112 Bottom face 113 First case hole 114 Second case hole 12 First engagement pin 120 First shaft pin 13 Second engagement pin 130 Second shaft pin 2 ３ 3 Thick tube 30 First thick tube fixing hole 31 Second thick tube fixing hole 4 Narrow tube 40 First Narrow tube fixing hole 41 First Two thin tube fixing holes 50 Tip hoop 51 Leaf spring 52 Tip hoop hole 6 Connecting plate 60 Connecting pin 7 Rod rod 8 Inner case 9 Handle S

Claims (6)

A thin tube is placed inside the thick tube to allow it to expand and contract, and the peripheral surface of the thin tube is provided with a plurality of thin tube fixing holes in the longitudinal direction, and an operating portion is provided in the vicinity of the tip of the thick tube. A plurality of engaging pins arranged in a row and an elastic body for urging the engaging pins toward the thin tube fixing hole side, and by engaging the engaging pin and the thin tube fixing hole, In the adjustment position fixing device of the stretchable pattern to be connected and fixed,
The plurality of thin tube fixing holes are such that the diameter size of the thin tube fixing hole on the distal end side of the expandable pattern is larger than the diameter size of the adjacent thin tube fixing hole on the rear end side,
The adjustable position fixing device for an extendable pattern, wherein the plurality of engaging pins are disposed in the thick tube fixing hole in a state of being detached from the thin tube fixing hole.   The plurality of engagement pins include a first engagement pin that is slidable on the outer peripheral wall of the thin cylinder when the length of the expandable handle is adjusted, and a thick cylinder that does not slide on the peripheral wall of the thin cylinder and 2. The adjustable position fixing device for an expandable handle according to claim 1, further comprising a second engagement pin having a length to be locked in the tube fixing hole. In a telescopic pattern adjustment position fixing device having a joint case attached to the tip of a thick tube, and a joint lever pivotally attached to a pivot provided in the width direction in the joint case and provided with a plurality of engagement pins.
The adjustable position fixing device for an extendable handle according to claim 1 or 2, wherein the joint lever is provided with a swing shaft for pivotally mounting the base end of the engaging pin. In an adjustable position fixing device for a telescopic pattern, comprising: a joint case attached to the tip of a thick cylinder; and a joint lever pivotally attached to a pivot provided in the width direction in the joint case and provided with a plurality of engagement pins. ,
Of the plurality of engagement pins, the first engagement pin includes a swing shaft pivotally attached to the base end thereof,
4. The adjustable position fixing device for an extendable handle according to claim 2, wherein the second engagement pin is formed integrally with the joint lever.   A bag comprising the adjustable position fixing device for an extendable pattern according to claim 1, 2, 3 or 4.   A saw comprising the adjustable position fixing device for an expandable handle according to claim 1, 2, 3 or 4.

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