JP5355806B1 - String lock - Google Patents

Abstract

[PROBLEMS] To reduce the manufacturing cost by adopting a simple structure that can be integrally molded, which has excellent locking force and operability for the string, and does not easily come off even when force is applied from the side while the string is locked. Can also be achieved.
SOLUTION: Through holes 7 and 9 through which a string-like body is inserted, a receiving surface 2 for receiving the string-like body, and a distal end portion 3 at the proximal hinge portion 4 so that the distal end portion 3 can be freely approached and separated from the receiving surface 2 The holding part 11 which consists of the rocking | fluctuating inclination latching protrusion 5 and the pressing part 10 which cancels | releases the state which latched the string-like body in the clamping part 11 are provided, and the receiving surface 2 and the inclination latching protrusion A string-like body is sandwiched between the distal end portions 3 of 5 and locked at an arbitrary position against the force in the pulling direction of the end portion of the string-like body.
[Selection] Figure 1

Description

  The present invention relates to a string locking tool.

  Conventionally, as a string locking tool, a push-type string locking tool is generally known. For example, a pressing member having a cavity through which a string is inserted, a cavity of the pressing member that accommodates the pressing member, and It is composed of a housing member having a string hole through which a string can be opposed and a spring or the like provided below the pressing member. However, since such a push-type string locker is made to function by using a spring or the like, not only does the manufacturing cost from procurement of parts to assembly increase, but also the shape increases in the pushing direction. Due to structural problems, the design is limited to a spherical shape, a barrel shape, a cylindrical shape, and the like.

  On the other hand, the applicant of the present application has added a unique improvement to the prior art related to the string binding tool and has proposed the invention as shown below.

  JP 2010-214748 A (Patent Document 1) aims to provide a string binding tool capable of easily and quickly binding both ends of a string, and has a pair of side pieces that are substantially parallel. A pair of side piece parts are connected at the bottom piece part to form a groove for inserting a string, and two pairs of claw parts are formed between the pair of side piece parts to elastically sandwich the string, and for inserting a string. There has been proposed a “string binding tool” in which a string insertion hole communicating with a concave groove is formed, and a pair of claw portions 1 are provided on each of one end side and the other end side in the longitudinal direction of the concave groove for string insertion.

  Japanese Patent Application Laid-Open No. 2011-194741 (Patent Document 2) aims to provide a string binding tool that can surely prevent loosening even when a strong force is applied in the direction in which the string-like body is loosened. A receiving surface for receiving the object, and an inclined locking protrusion that swings at the proximal hinge so that the distal end of the receiving surface can be separated from the receiving surface. The receiving surface and the distal end of the locking protrusion The string-like body is sandwiched between the portions, and when the string-like body moves in the loosening direction, the locking projection piece approaches the receiving surface by the frictional force from the string-like body to prevent the string-like body from loosening, A “string binding tool” has been proposed in which a plurality of pairs of locking protrusions are provided symmetrically with respect to a single plane perpendicular to the receiving surface.

JP 2010-214748 A JP 2011-194741 A

  The present invention is a further improvement over the prior art, with excellent locking force and operability for the string, making it difficult to come off even when a force from the side is applied with the string locked. An object of the present invention is to provide a string locking device that can reduce the manufacturing cost by adopting a simple configuration.

In order to solve the above-described problems, the invention described in claim 1 is a string locking device configured to be integrally molded , and includes an insertion portion through which the string-shaped body is inserted and the string-shaped body. A holding portion comprising: a holding surface to be held; an inclined locking protrusion that swings at a proximal hinge portion so that a distal end portion thereof is close to and separated from the receiving surface; and the string-like body is disposed at the holding portion. A pressing portion for releasing the locked state, and in a state where the pressing portion is pressed, a gap between the tip end of the inclined locking protrusion and the receiving surface is equal to or larger than a diameter of the string-like body. In the state where the pressing portion is not pressed down, the gap between the distal end portion of the inclined locking projection piece and the receiving surface is set by the elastic restoring force of the base end hinge portion in the state where the pressing portion is not pressed down. When the force in the pulling direction is applied to the string-like body, it is large. When the frictional force works and the tip of the inclined locking protrusion bites into and locks the string-like body, and the force in the direction opposite to the pulling direction is applied to the string-like body, the inclined locking protrusion piece The leading end does not bite into the string-like body, and the string-like body is movable while abutting against the receiving surface and the leading end of the inclined locking projection piece, whereby the receiving surface and the inclined locking The string-like body is clamped at the tip of the projecting piece, and is locked at an arbitrary position against the force in the drawing direction of the end of the string-like body.

In addition, the invention according to claim 2 is a string locking tool configured to be integrally formed , and an insertion portion for inserting the string-like body into the main body portion constituting the hollow frame body closed in the circumferential direction. And a receiving surface for receiving the string-like body inside the main body portion, and an inclined locking protrusion that swings at the proximal hinge portion so that the distal end portion can be approached and separated from the receiving surface. And a pressing part for releasing the state where the string-like body is locked in the holding part on the outside of the main body part, and in the state where the pressing part is pressed, the inclined locking protrusion The clearance dimension between the distal end portion and the receiving surface is configured to be equal to or larger than the diameter dimension of the string-like body, and the inclined shape is formed by the elastic restoring force of the proximal hinge portion in a state where the pressing portion is not pressed. The gap dimension between the tip of the locking protrusion and the receiving surface is less than the diameter dimension of the string-like body. When a force in the pulling direction is applied to the string-like body, a large frictional force is applied, and the tip of the inclined locking projection piece bites into and locks the string-like body and is pulled out to the string-like body. When a force in the direction opposite to the direction is applied, the tip of the inclined locking protrusion does not bite into the string, and the string contacts the receiving surface and the tip of the inclined locking protrusion. By making it possible to move while in contact, the string-like body is sandwiched between the receiving surface and the tip of the inclined locking projection piece, and the position of the end of the string-like body is against any force in the pulling direction. It is characterized by being locked to.

  According to a third aspect of the present invention, the tip of the inclined locking projection piece according to the first or second aspect is applied to the end of the end of the string-like body when a force in the pulling direction is applied. The tooth part which bites into a shape body is formed, It is characterized by the above-mentioned.

  According to a fourth aspect of the present invention, the end of the string-like body is pulled out at both the tip end portion of the inclined locking projection piece according to the first or second aspect and the receiving surface opposed thereto. The string locking tool according to claim 1, wherein a tooth portion that bites into the string-like body when a force in a direction is applied is formed.

  According to a fifth aspect of the present invention, in the insertion portion according to the first to fourth aspects, a pair of through holes are formed in both side wall portions close to the receiving surface for receiving the string-like body. It is characterized by.

  According to a sixth aspect of the present invention, the receiving surface according to the first to fifth aspects is formed so as to be curved in a substantially arc shape, and the string-like body is inserted in a state of being curved in the clamping portion. The string locking tool according to any one of claims 1 to 4, wherein

The invention described in Claim 7, wherein the cord-like member according to claim 1 to claim 6 is a cord stop looped, and characterized in that to enable variable loop length of the narrowed strap To do.

As described above, according to the string locking device according to the present invention, it can be locked at an arbitrary position against the force in the drawing direction of the end of the string-like body (or the direction in which the string-like body loosens). The operability is improved and the function of preventing looseness can be surely exhibited. Moreover, since the insertion part which penetrates a string-like body is provided, even if the force from a side surface direction is added in the state which locked the string-like body, it becomes difficult to remove | deviate. In addition, since a simple configuration capable of integral molding is employed, the manufacturing cost can be reduced.
Moreover, about the main-body part of a string latching tool, latching force can be increased further by employ | adopting the structure (hollow frame body closed in the circumferential direction) which closes open space.

It is a front view which shows an example (1st Example) of the string latching tool concerning this invention. It is a left view of the string latching tool shown in FIG. It is a right view of the string latching tool shown in FIG. It is a perspective view which shows an example of the use condition of the string latching tool shown in FIG. It is sectional drawing which shows an example of the use condition of the string latching tool shown in FIG. It is explanatory drawing which shows the relationship (state which does not push down a pressing part) between the receiving surface of the string latching tool shown in FIG. It is explanatory drawing which shows the relationship (state which pressed down the pressing part) between the receiving surface of the string locking tool shown in FIG. 1, and an inclined locking protrusion. It is a front view which shows an example (2nd Example) of the string latching tool concerning this invention. It is a left view of the string latching tool shown in FIG. It is a right view of the string latching tool shown in FIG. It is explanatory drawing which shows the relationship (state which does not push down a pressing part) between the receiving surface of the string latching tool shown in FIG. It is explanatory drawing which shows the relationship (state which pressed down the pressing part) of the receiving surface of the string locking tool shown in FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an example (first embodiment) of a string locking device according to the present invention, FIG. 2 is a left side view, and FIG. 3 is a right side view.

  As shown in FIG. 1, the string locker 1 swings at a base end hinge portion 4 so that a receiving surface 2 for receiving a string-like body and a distal end portion 3 can be freely separated from the receiving surface 2. The holding part 11 which consists of the inclined latching protrusion 5 and the pressing part 10 which cancels | releases the state which latched the string-like body are provided. For this reason, as described later, since it can be locked at an arbitrary position against the force in the drawing direction of the end of the string-like body (or the direction in which the string-like body loosens), the operability is improved and the looseness is surely prevented. Function can be demonstrated. In addition, the size can be easily reduced as compared with the prior art, and the problem of design limitation can be solved.

  In addition, a pair of through holes 7 and 9 through which a string-like body is inserted are formed in the side wall portions 6 and 8 adjacent to the receiving surface 2 as shown in FIGS. 1 to 3. For this reason, even when a force from the side surface direction is applied in a state where the string-like body is locked, it is difficult to come off. In addition, about the specific form of the magnitude | size and shape of the through-holes 7 and 9, it can change variously.

FIG. 4 is a perspective view showing an example of a use state of the string locking tool shown in FIG. 1, and FIG. 5 is a sectional view.
As shown in FIGS. 4 and 5, the loop-shaped drawn string (string-shaped body S) is inserted into the through holes 7 and 9 of the string locking device 1, and the slanted engagement with the receiving surface 2 of the string locking device 1. It is clamped by the tip 3 of the stop projection piece 5. For this reason, the loop-shaped drawn string (string-shaped body S) is locked at an arbitrary position against the force in the pulling direction (X direction in the figure) of the end portions 21a and 21b, as shown in FIG. Further, the loop length of the loop portion 20 can be varied by moving the loop-shaped drawn string (string-shaped body S) in the X direction or the Y direction. The string-like body S is not limited to a loop-shaped drawstring (which locks the ends of the strings of shoes, rucksacks, bags, stationery, etc.), but only a single string is associated with the string. It may be inserted through the stopper 1 and locked at an arbitrary position.

FIG. 6 is an explanatory view showing a state where the pressing portion of the string locking tool shown in FIG. 1 is not pressed, and FIG. 7 is an explanatory view showing a state where the pressing portion is pressed.
As shown in FIG. 7, the tip portion 3 and the receiving surface of the inclined locking protrusion 5 in a state where the pressing portion 10 of the string locking tool 1 is pressed in the Z direction in the drawing (string-like body release position). 2 is configured such that the gap dimension with respect to 2 is equal to or larger than the diameter dimension (D) of the string S. For this reason, when the pressing portion 10 is pressed, the holding of the receiving surface 2 and the tip end portion 3 of the inclined locking protrusion 5 is released, and the string-like body S can move in either the X direction or the Y direction. It becomes.

  As shown in FIG. 6, in the state where the pressing portion 10 of the string locking device 1 is not pressed (the locking position of the string-like body), the slanted locking protrusion 5 of the inclined locking protrusion 5 is caused by the elastic restoring force of the proximal hinge portion 4. The gap between the tip 3 and the receiving surface 2 is configured to be less than the diameter (D) of the string S. For this reason, when the force in the X direction is applied to the string-like body S between the receiving surface 2 and the tip portion 3 of the inclined locking projection piece 5, a large frictional force acts, and the tip portion of the inclined locking projection piece 5. 3 bites into the string-like body S and exhibits a large loosening prevention function. On the other hand, when a force in the Y direction is applied to the string-like body S, the tip 3 of the inclined locking protrusion 5 does not bite into the string-like body S, and the string-like body S is inclined to the receiving surface 2 and is inclined. It can move in the Y direction while abutting against the tip 3 of the projecting piece 5.

  As shown in FIG. 6, when the force in the drawing direction (X direction in the drawing) of the end of the string-like body S is applied to the tip 3 of the inclined locking projection piece 5, the saw bites into the string-like body S. A tooth portion is formed in the width direction with respect to the receiving surface 2. Thereby, when the force of the X direction is added to the string-like body S, the front-end | tip part 3 will bite into the string-like body S easily, and a locking force can be increased. In addition, about the shape of the front-end | tip part 3 of the inclined latching protrusion 5, it is not limited to a saw-tooth part, The force of the extraction direction (X direction in a figure) of the edge part of the string-like body S is sufficient. Any shape that can easily bite into the string-like body S can be used.

  As the material of the string locking device 1 according to the present invention, plastic is suitable, and since a simple configuration capable of integral molding as described above is adopted, the manufacturing cost can be reduced. The material and the manufacturing method are not limited to this, and metal may be used. In the case of metal, it is preferable that the base end hinge portion 4 has a thin plate spring shape.

  Next, another embodiment of the present invention will be described with reference to the drawings. FIG. 8 is a front view showing an example (second embodiment) of the string locking device according to the present invention, FIG. 9 is a left side view, and FIG. 10 is a right side view.

  As shown in FIG. 8, the string locking tool 30 has a receiving surface 32 for receiving the string-like body inside a main body 31 constituting a hollow frame closed in the circumferential direction, and the receiving surface 32. Thus, the distal end portion 33 projects through the slit 38 of the main body 31 and the holding portion 40, which is formed of an inclined locking projection 35 that swings at the proximal hinge 34 so that the distal end 33 can be approached and separated. And a pressing portion 39 for releasing the locked state. For this reason, the operability is improved because it can be locked at an arbitrary position against the force in the drawing direction of the end of the string-like body (or the direction in which the string-like body loosens) as in the first embodiment described above. Moreover, the function of preventing loosening can be surely exhibited. In addition, the size can be easily reduced as compared with the prior art, and the problem of design limitation can be solved.

  Further, a pair of through holes 36 through which a string-like body is inserted, as shown in FIGS. 8 to 10, in both side wall portions close to the receiving surface 32 of the main body portion 31 constituting the hollow frame body closed in the circumferential direction. , 37 are formed. Moreover, the receiving surface 32 is curvedly formed in a substantially arc shape, and the string-like body is inserted in a state of being curved in the holding portion 40 (see FIG. 11). For this reason, it is difficult to come off even when a force from the side surface direction is applied in a state where the string-like body is locked as in the first embodiment. Furthermore, since the through holes 36 and 37 are formed in a hollow frame closed in the circumferential direction, the locking force can be further increased as compared with the first embodiment. In addition, about the specific form of the magnitude | size and shape of the through-holes 36 and 37, it can change variously.

FIG. 11 is an explanatory view showing a state where the pressing portion of the string locking tool shown in FIG. 8 is not pressed, and FIG. 12 is an explanatory view showing a state where the pressing portion is pressed.
As shown in FIG. 12, in the state where the pressing portion 39 of the string locking device 30 is pressed in the Z direction in the figure (the position where the string-shaped body is released), the distal end portion 33 and the receiving surface of the inclined locking protrusion 35 The gap dimension with respect to 32 is configured to be equal to or larger than the diameter dimension (D) of the string-like body S. For this reason, when the pressing portion 39 is pressed, the holding of the receiving surface 32 and the tip end portion 33 of the inclined locking protrusion 35 is released, and the string-like body S can move in either the X direction or the Y direction. It becomes.

  As shown in FIG. 11, in the state where the pressing portion 39 of the string locking device 30 is not pressed (the locking position of the string-like body), the inclined locking protrusion 35 is moved by the elastic restoring force of the proximal hinge portion 34. The gap dimension between the tip 33 and the receiving surface 32 is configured to be less than the diameter dimension (D) of the string S. For this reason, when the force in the X direction is applied to the string-like body S between the receiving surface 32 and the distal end portion 33 of the inclined locking projection piece 35, a large frictional force is applied, and the distal end portion of the inclined locking projection piece 35 33 greatly bites into the string-like body S and exhibits a large locking function. On the other hand, when a force in the Y direction is applied to the string-like body S, the distal end portion 33 of the inclined locking protrusion 35 does not bite into the string-like body S, and the string-like body S is inclined to the receiving surface 32 and inclined. It is possible to move in the Y direction while coming into contact with the tip 33 of the protruding piece 35.

  As shown in FIG. 8, a saw that bites into the string-like body S when a force in the pulling direction (X direction in FIG. 11) of the end of the string-like body S is applied to the tip 33 of the inclined locking protrusion 35. The teeth 33a, 33b, 33c are formed in the width direction with respect to the receiving surface 32, and the teeth 32a, 32b are also formed on the receiving surface 32 facing the teeth 33a, 33b. Accordingly, when a force in the X direction is applied to the string-like body S, the distal end portion 33 easily bites into the string-like body S, and the locking force can be further increased. In addition, about the shape of the front-end | tip part 33 and the receiving surface 32 of the inclined latching protrusion 35, it is not limited to a sawtooth tooth part, The extraction direction (X of FIG. 11) of the edge part of the string-like body S is carried out. Any shape that can easily bite into the string S when the (direction) force is applied is acceptable.

  As the material of the string locking device 30 according to the present invention, plastic is suitable, and since a simple configuration capable of integral molding as described above is adopted, the manufacturing cost can be reduced. Note that the material and the manufacturing method are not limited to this, and a metal may be used. In the case of a metal, it is preferable that the base end hinge portion 34 has a thin plate spring shape.

  Further, in the present invention, the “string-like body” includes not only a string body but also an elongated body, for example, a belt body, that is, a (solid) rectangular cross section. Therefore, when the string-like body is other than a circular cross section, the width dimension of the string-like body (when used, the dimension in the free state in the vertical direction in the front view) corresponds to the above-mentioned “diameter dimension (D)”. It shall be.

DESCRIPTION OF SYMBOLS 1 String latch 2 Reception surface 3 Front-end | tip part 4 Base end hinge part 5 Inclined latching protrusion 6 Side wall part 7 Through-hole 8 Side wall part 9 Through-hole 10 Pressing part 11 Clamping part 20 Loop part 21 End part 30 String connection Stopper 31 Main body 32 Receiving surface 33 Front end 34 Base hinge 35 Inclined locking projection 36 Through hole 37 Through hole 38 Slit 39 Pressing part 40 Holding part S String-like body

Claims (7)

A string locking device that can be integrally molded, and includes an insertion portion for inserting the string-shaped body, a receiving surface for receiving the string-shaped body, and a tip portion that is freely accessible and separable from the receiving surface. And a pressing part for releasing the state in which the string-like body is locked in the holding part, and pressing the pressing part. In this state, the gap dimension between the tip of the inclined locking projection piece and the receiving surface is configured to be equal to or larger than the diameter dimension of the string-like body, and in the state where the pressing part is not pressed, An elastic restoring force of the end hinge portion is configured so that a gap between the tip of the inclined locking protrusion and the receiving surface is less than a diameter of the string-like body, and the string-like body is pulled out. When a large force is applied, a large frictional force is applied and the tip of the inclined locking protrusion is the string. When a force in the direction opposite to the pulling direction is applied to the string-like body, the tip of the inclined locking projection piece does not bite into the string-like body and the string-like body receives the catch. The string-like body is sandwiched between the receiving surface and the tip end portion of the inclined locking projection piece by allowing the surface to move while contacting the surface and the tip end portion of the inclined locking projection piece. A string locking tool characterized by being locked at an arbitrary position against the force in the pulling direction of the end portion. A string locking tool that is configured to be integrally formed, an insertion part that allows a string-like body to be inserted into a main body part that constitutes a hollow frame body that is closed in the circumferential direction, and the string-like part inside the main body part A sandwiching portion comprising a receiving surface for receiving a body, an inclined locking protrusion that swings at a proximal hinge portion so that a distal end portion thereof can be approached and separated from the receiving surface; and an outer side of the main body portion A pressing portion for releasing the state where the string-like body is locked in the clamping portion, and in a state where the pressing portion is pressed, a gap dimension between the tip end portion of the inclined locking protrusion and the receiving surface is The distal end portion of the inclined locking projection piece and the receiving surface are configured so as to be equal to or larger than the diameter of the string-like body, and in a state where the pressing portion is not pressed down, due to an elastic restoring force of the proximal hinge portion. So that the gap dimension is less than the diameter dimension of the string-like body. When a force in the pulling direction is applied, a large frictional force is applied, and the tip of the inclined locking protrusion bites into and locks the string-like body, and a force in the direction opposite to the pulling direction is applied to the string-like body. The tip of the inclined locking projection piece does not bite into the string-like body, and the string-like body is movable while contacting the receiving surface and the tip end portion of the inclined locking projection piece. A string characterized in that the string-like body is sandwiched between a receiving surface and a tip end portion of the inclined locking projection piece, and is locked at an arbitrary position against a force in an extraction direction of an end portion of the string-like body. Locking tool. The tip portion of the inclined locking protrusion is formed with a tooth portion that bites into the string-like body when a force in the pulling direction of the end of the string-like body is applied. Item 3. A string locker according to item 2. When a force in the drawing direction of the end of the string-like body is applied to both the tip end portion of the inclined locking projection piece and the receiving surface facing it, a tooth portion that bites into the string-like body is formed. The string locking tool according to claim 1 or claim 2, characterized by the above. The said insertion part has a pair of through-hole formed in the both-sides wall part close | similar to the receiving surface which receives the said string-like body, The Claim 1 thru | or 4 characterized by the above-mentioned. String locker. The stringer according to any one of claims 1 to 5, wherein the receiving surface is curved in a substantially arc shape, and the string-like body is inserted in a state of being curved in the clamping portion. Stopper. The string locker according to any one of claims 1 to 6 , wherein the string-like body is a loop-shaped drawn string, and the loop length of the drawn string is variable.

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