JP2005118430A - Cord lock for shoelace - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cord lock for a string shoe that can be prevented from functioning due to a foreign substance that has entered inside and that is easy to operate. A cord lock 1 for shoelaces, comprising a movable member 7 that holds the shoelaces by pressing a shoelace 3 that is provided and passed through the holder body to the inside of the holder body. The main body is provided with a discharge portion 5i that can discharge foreign matter contained in the holder main body.
[Selection] Figure 2

Description

  The present invention relates to a cord lock used for a shoelace.

A lace shoe that can tighten the entire part of the instep of the foot allows fine adjustment of the size of the foot, and is especially suitable for the foot of a child in the process of growth. The lace shoe is apt to be avoided because it is troublesome and complicated, but there is already a lace shoe using a cord lock so that the shoe lace can be easily operated (see, for example, Patent Document 1).
JP 11-309001 A

However, for example, when a child uses a shoelace using a conventional shoelace cord lock, there is a problem that foreign matters such as sand enter the cordlock and become nonfunctional.
SUMMARY OF THE INVENTION An object of the present invention is to provide a cord lock for shoelaces that can prevent malfunction due to foreign matter that has entered inside and that is easy to operate.

  The present invention solves the above-described problems by the following method. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

  A cord lock (1) for shoelaces according to the present invention includes a hollow holder main body (5) and a shoelace (3) that is movably provided in the holder main body and passed through the holder main body. A shoelace cord lock having a moving member (7) for holding the shoelace by being pressed against the holder main body, wherein the holder main body has a discharge portion (11) capable of discharging foreign matter contained in the holder main body. The above-mentioned problems are solved by providing 5i).

  The moving member moves in the holder main body to perform an operation related to holding the shoelace passed through the holder main body. However, if a foreign object enters the holder main body and the movement is hindered, the moving member can perform the operation. Absent. However, according to the present invention, since the foreign matter that has entered the holder body can be discharged by the discharge portion provided in the holder body, the movement of the moving member can always be ensured. Therefore, for example, even when a child plays in the sandbox and sand enters the holder main body, the sand is discharged from the discharge portion, so that the movement of the moving member provided in the holder main body is prevented by the sand. There is nothing.

  Further, it is preferable that an operation unit (6) for operating the movement of the moving member is provided, and the discharge unit is provided as a hole-shaped opening (5i) in the holder main body separately from the operation unit. Thereby, a discharge part can be provided in a holder main body irrespective of the function and shape of an operation part. In addition, since the discharge portion is provided as a simple hole-like opening, a complicated device or mechanism for discharging foreign matter is unnecessary.

  Further, the cord lock may be used with the operation part facing up on the upper part (2a) of the shoe through which the shoelace is passed, and the discharge part may be provided on the side in contact with the upper part. In this case, since the discharge portion is provided below the cord lock, the foreign matter that has entered the holder body is likely to be naturally discharged from the discharge portion due to vibration during use. In addition, since the operation part is provided on the upper side of the cord lock, it is easy to operate, and since the discharge part is provided on the lower side and cannot be seen from the front side, the design of the code lock is limited by providing the discharge part. There is no.

  As described above, according to the present invention, by providing a discharge portion in the holder body of the cord lock, it is possible to prevent the foreign matter from entering the inside of the cord lock from being disabled and easy to operate. A cord lock for a shoelace can be provided.

  FIG. 1 shows an example of a child shoe 2 in which an example of a shoelace cord lock 1 (hereinafter referred to as “code lock 1”) according to the present invention is used. Each child shoe 2 has a shoelace 3, shoelaces 3a ... 3a, and a cord lock 1, and cord ends 4 are provided at both ends of the shoelace 3 so that the shoelace 3 does not come off the cord lock 1. ing. In each child shoe 2, the shoelaces 3 passed through the shoelaces 3a ... 3a are collected from the left and right as shown in FIG. 1 and held by the cord lock 1 on the upper part 2a. The structure of the code lock 1 will be described with reference to FIGS. As shown in FIG. 2, the code lock 1 includes a holder main body 5, a slider 6, and a moving body 7. The slider 6 has an operation surface 6a and a convex connecting portion 6b. The moving body 7 includes a movable portion 7a, a spring portion 7b, and a main body connecting portion 7c. The movable part 7a is provided with a tooth part 7d symmetrically to the left and right (a tooth part 7d provided on the left side is not shown), and a slider connecting part 7e provided in a hole shape at the center. Two protrusions 7f are provided on the front side of the main body connecting portion 7c. A protrusion (not shown) similar to the protrusion 7f is also provided on the back side of the main body connecting portion 7c. The holder main body 5, the slider 6, and the moving body 7 are made of plastic.

  The holder body 5 has a vertically elongated shape that is symmetrical to the left and right, and has a hollow structure having a front surface 5a, a back surface 5b, and a side surface 5c. In the side surface 5c, one opening as a shoelace insertion opening 5d is provided symmetrically on the insertion side of the shoelace 3 (left shoelace insertion opening 5d is not shown), and on the drawer side of the shoelace 3. The side surface 5c is removed to form an opening. Such an opening functions as a moving body connecting portion 5 e for connecting the moving body 7. Further, the width of the holder body 5 is gradually increased from the direction in which the shoelace insertion opening 5d is provided toward the direction in which the movable body connecting portion 5e is provided.

  3A is a perspective view of the holder body 5 with the front surface 5a facing up, FIG. 3B is a perspective view of the holder body 5 with the back surface 5b facing up, and FIG. It is sectional drawing cut | disconnected by the plane parallel to 5a. As shown in FIG. 3A, a slider installation portion 5f for movably installing the slider 6 is provided at the center portion of the front surface 5a of the holder body 5, and a vertical portion is provided at the center portion of the slider installation portion 5f. An opening 5g that is long in the direction is provided. Two holes 5h are provided in the vicinity of the moving body connecting portion 5e on the front surface 5a. As shown in FIG. 3B, the back surface 5b of the holder body 5 is provided with a sand removal opening 5i as a discharge portion and two holes 5h in the vicinity of the moving body connecting portion 5e. The sand removal opening 5i is provided in a substantially T shape in the vertical direction. As described above, the side surface 5c of the holder main body 5 has two shoelace insertion openings 5d and 5d and a movable body connecting portion 5e, which are openings. 5c-1, left side surface 5c-2, and right side surface 5c-3. The left side surface 5c-2 and the right side surface 5c-3 are provided symmetrically, and the thickness thereof is thick in the vicinity of each shoelace insertion opening 5d and is gradually decreased downward. Further, tooth portions 5j are provided inward of the left side surface 5c-2 and the right side surface 5c-3 in the vicinity of each shoelace insertion opening 5d inwardly in a lateral direction.

  The moving body 7 is connected to the holder main body 5 by fitting the projections 7f... 7f provided on the main body connecting portion 7c into holes 5h... 5h provided near the moving body connecting portion 5e of the holder main body 5, respectively. And accommodated in the holder body 5. The movable body connecting portion 5e of the holder main body 5 is closed at the center of the opening by the main body connecting portion 7c. However, since the main body connecting portion 7c is shorter than the moving body connecting portion 5e, There are gaps at both ends. This gap functions as a drawer port from which the shoelace 3 is pulled out. In addition, the slider 6 and the moving body 7 are connected by fitting the convex connecting part 6 b of the slider 6 into the slider connecting part 7 e of the moving body 7 through the opening 5 g of the holder body 5. The slider 6 can move in the opening direction of the opening 5g, that is, in the vertical direction, and the movable portion 7a of the moving body 7 moves in conjunction with the movement of the slider 6. Accordingly, the slider 6 functions as an operation unit for operating the moving body 7.

  FIG. 4 shows a schematic diagram of the cord lock 1 including the holder main body 5, the slider 6, the moving body 7, and the shoelace 3 described above. The shoelace 3 is inserted into the cord lock 1 from the shoelace insertion opening 5d and pulled out from the shoelace outlet 5k which is a gap formed by the main body connecting portion 7c and the side surface 5c. Accordingly, the cord end 4 is attached in the Y direction of each shoelace 3. The slider 6 can slide on the holder main body 5 in the vertical direction (X direction in the figure). Hereinafter, sliding the slider 6 in the X direction is referred to as sliding down. Although not shown in FIG. 4, since the sand removal opening 5 i described above is provided in the back surface 5 b, the sand that has entered the cord lock 1 is naturally discharged during use of the child shoes 2. Even sand that is not naturally discharged can be easily discharged by shaking the code lock 1.

  Hereinafter, the adjustment operation of the shoelace 3 by the cord lock 1 having the above-described configuration will be described with reference to FIGS. 5A and 5B are schematic views of a cross section of the cord lock 1 cut along a plane parallel to the front surface 5a. Note that the cord lock 1 has a left-right symmetric structure, and the holding of the shoelace 3 is adjusted on the left side by the same mechanism as that on the right side. Therefore, in FIG. Only the right side of 1 is shown. Moreover, illustration of the opening part 5i provided in the back surface 5d of the holder main body 5 is abbreviate | omitted.

  First, a mechanism for holding the shoelace 3 by the cord lock 1 will be described. As shown in FIG. 5 (a), the movable part 7a is pushed up in the U direction by the force to return the spring part 7b of the moving body 7, so that the tooth part 7d causes the shoelace 3 to move inside the side face 5c. Press against the provided tooth portion 5j. As a result, the shoelace 3 is sandwiched between the tooth portion 7d and the tooth portion 5j, and the position of the shoelace 3 is maintained. The teeth of the tooth portion 7d and the tooth portion 5j in the present embodiment are provided with sharp tip portions directed in the B direction. Accordingly, the shoelace 3 moves in the B direction when a force larger than the pressing force of the spring portion 7b of the moving body 7 is applied in the B direction. However, when the force is applied in the A direction, the shoelace 3d and The tip of each tooth of the tooth portion 5j bites into the shoelace 3 and prevents the shoelace 3 from moving in the A direction. That is, the movement of the shoelace 3 in the A direction is not easy. When the shoelace 3 moves in the A direction, the shoelace 3 becomes locked, and when the shoelace 3 moves in the B direction, the shoelace 3 becomes unlocked. Therefore, since the tooth portion 7d and the tooth portion 5j have the above-described configuration, the shoelace 3 is not easily loosened even if a certain amount of force is applied to the shoelace 3 during use.

  Next, a method for loosening the shoelace 3 will be described. First, a finger is placed on the operation surface 6a of the cord lock 1 to slide the slider 6 downward, and this state is maintained. Inside the cord lock 1 at this time, as shown in FIG. 5B, the movable portion 7 a moves in the D direction within the holder body 5 as the slider 6 moves. As a result, the distance between the tooth portion 7d of the movable body 7 and the tooth portion 5j of the holder main body 5 is widened, and the shoelace 3 is released from the sandwiched state and can be easily moved in both the A direction and the B direction. . Therefore, as shown in FIG. 6, the shoelace 3 moves in the A direction only by moving the cord lock 1 in the Z direction until it hits the cord end 4 with the slider 6 slid downward in the holder body 5. Therefore, the shoelace 3 can be easily loosened.

  Next, a method for fastening the loosened shoelace 3 will be described. When the finger is released from the operation surface 6a of the slider 6 in a state where the shoelace 3 is in contact with the cord end 4 by the above-described method, the force of returning the spring portion 7b of the moving body 7 is caused by the force of returning to the original position. Return to the state of 5 (a). That is, the shoelace 3 is sandwiched between the tooth portion 7d of the moving body 7 and the tooth portion 5j of the holder body 5 and is held again. As described above, in the present embodiment, the tooth portion 7d and the tooth portion 5j are structured such that the shoelace 3 is difficult to move in the A direction, but in the B direction in the B direction with respect to the shoelace 3. It can move if force is applied. Therefore, if both ends of the cord end 4 are held with one hand and the cord lock 1 is moved upward with one hand, the shoelace 3 can be moved in the B direction, whereby the shoelace 3 is tightened. be able to.

  This invention is not limited to the form mentioned above, You may implement with a various form. For example, in the present embodiment, the cord lock 1 has a vertically long shape, but may have a horizontally long shape. Although the shape of the sand removal opening 5i as the discharge portion is substantially T-shaped, it is not limited to this shape. Moreover, the discharge part is not limited to one place. Further, the cord lock 1 according to the present invention is particularly effective in a shoe used in an environment where foreign matter easily enters the cord lock 1, but the type of shoe in which the cord lock 1 is provided is not limited.

  Although the holder main body 5, the slider 6 and the moving body 7 are all made of plastic, they may be made of different materials depending on the application. The material of the shoelace 3 is a material that returns to the original state after being sandwiched between the tooth portion 7d and the tooth portion 5j as described above or after being bitten into the tooth portion 7d or the tooth portion 5j. It is desirable. The tooth part 7d and the tooth part 5j are each constituted by three teeth in this embodiment, but the number of teeth is not limited to this. Moreover, in this embodiment, although the shape of the tooth part 7d and the tooth part 5j is made into the shape which can move the shoelace 3 if the force more than a certain amount is applied to the direction which loosens the shoelace 3, The shape of the shoe 3 may be difficult to move in the loosening direction, and the shoelace 3 may always be moved by operating the slider 6.

The figure which shows the example of the child shoes in which the cord lock for shoelaces which is an example of this invention was used. The figure which shows the structure of the cord lock for shoelaces of FIG. (A) is a perspective view which shows the front surface of the holder main body in the cord lock for shoelaces of FIG. 1, (b) is a perspective view which shows the back surface of a holder main body, (c) is a holder body parallel to a front surface. Sectional drawing cut | disconnected by the surface. The schematic of the external appearance of the cord lock for shoelaces which has the structure of FIG. (A) is the schematic which shows the cross section of the cord lock for shoelaces of FIG. 1 in the state which has a slider in a normal position, (b) is the cord lock for shoelaces of FIG. 1 in the state which slid the slider. Schematic which shows a cross section. FIG. 5 is a diagram showing a state where a slider is slid with a finger.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cord lock for shoelaces 2 Shoes for children 3 Shoelaces 5 Holder body 6 Slider 7 Moving body 5i Sand opening

Claims (3)

A hollow holder body;
A movable member that is movably provided in the holder body and holds the shoelace by pressing a shoelace passed through the holder body against the inside of the holder body;
A cord lock for shoelaces,
The cord lock for shoelaces characterized by the said main body being provided with the discharge part which can discharge the foreign material which entered the said holder main body.   The operation unit for operating the movement of the moving member, and the discharge unit is provided as a hole-like opening in the holder main body separately from the operation unit. Cord lock for shoelaces.   3. The shoe according to claim 2, wherein the shoe portion is used with the operation portion facing upward on the shoe upper portion through which the shoelace is passed, and the discharge portion is provided on a side in contact with the upper portion. Cord lock for string.

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