JP2003243849A - Cord stopper structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cord stopper structure capable of securing a cord to have a sufficient resistance against a drawing force being applied externally, and to make a cord rotatable at the stopper. <P>SOLUTION: In a structure for stopping a cord 4 produced by covering an outer circumferential surface of a core 1 sequentially with an insulator 2 and a sheath material 3, at a case hole 9, the sheath material 3 is provided with a bushing 6 for caulking a metal component 5 to the sheath material 3 and securing the case hole 9 and the cord 4 at the caulked part. A groove 8 is made in the outer circumferential surface of the bushing 6 and fitted idly to the case hole 9. Since the metal component 5 caulked to the sheath material 3 engages with the bushing 6, the cord 4 and the bushing 6 exhibit a sufficient resistance against a force for drawing the cord 4 from a case 7. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cord engaging portion structure for preventing the cord pulled out from the device from coming off in various electric devices.

[0002]

2. Description of the Related Art Conventionally, when a power cord or the like connected to the inside of an electric device is pulled out to the outside, the outer cover of the cord is damaged between the hole provided in the case and the cord moves in the longitudinal direction. Bushing is used to prevent this. The bushing is provided at either the insulator part or the sheath material part.

[0003]

The fixing of the bushing and the insulator or the sheath material has been performed by adhesion or welding with an adhesive. However, with this method, the amount of adhesive applied,
The welding conditions were not stable, there was no resistance to the pull-out force, and there were large variations in strength. If the adhesion is released by this pulling out, the cord is displaced, and if excessive force is applied to the insulator part, there is a fear of disconnection and ignition due to the disconnection. Another bushing type is one in which the cord and bushing are integrally formed of the same material such as rubber or elastomer. With this structure, when the cord and bushing are installed in the insertion hole (case hole) provided in the case, they twist and rotate. It was impossible to move. Therefore, the present invention has been made to solve the above problems, and a first object is to
It is an object of the present invention to provide a cord locking portion structure capable of fixing a cord so as to have a sufficient resistance to the pulling force applied from the outside. The second purpose is to allow the cord to rotate at the locking portion.

[0004]

In order to achieve the above-mentioned object, in claim 1, a cord locking structure for locking a cord formed by sequentially covering an outer peripheral surface of a core wire with an insulator and a sheath material in a case hole is provided. Therefore, a metal part is crimped to the sheath material, and a bushing for fixing the case hole and the cord is provided in the crimped portion of the metal part. By doing so, the metal parts crimped to the sheath material and the bushing are engaged,
The cord and bushing can have sufficient resistance to the force of pulling the cord out of the case.

Further, in order to achieve the above-mentioned object, claim 2
In a cord locking structure for locking a cord formed by sequentially covering an outer peripheral surface of a core wire with an insulator and a sheath material in a case hole, the insulator is exposed for a predetermined length, and A bushing for fixing the case hole and the cord was provided at the exposed boundary between the insulator and the sheath material. By doing so, since the insulator or the sheath material is in the bushing at the same time, the cord is not displaced by pulling out, and the outer skin of the boundary is not damaged.

According to a third aspect of the present invention, in the cord engaging portion structure according to the second aspect, the sheath member is caulked with a metal component, and the metal component caulking portion is provided with a bushing. By doing so, since the metal component crimped to the sheath material and the bushing are engaged with each other, it is possible to have sufficient resistance to the pulling force.

According to a fourth aspect of the present invention, since a part of the metal crimped on the sheath material portion has a concave shape, the fitting with the bushing is further strengthened, and the shift of the cord in the lengthwise direction with respect to the pulling force is further increased. Unlikely to occur.

Further, in order to achieve the above object, in the present invention, a groove is provided on the peripheral surface of the bushing, and the groove is loosely fitted in the case hole. By doing so, the bushing can be rotated with respect to the case hole, and there is no damage such as tearing of the cord when the cord is connected to a case such as a rotating body.

In the present invention, the bushing provided at the boundary between the exposed insulator and the sheath material is manufactured so as to be integrated with the cord. By doing so, the locking portion can be easily integrated. Also, the bushing and the code cannot be easily separated.

In order to achieve the above object, in claim 7,
A cord locking structure in which a cord formed by sequentially covering an outer peripheral surface of a core wire with an insulator and a sheath material is locked in a case hole, wherein a bushing is integrally provided on the sheath material, and the case is provided on a peripheral surface of the bushing. A groove was provided to fit loosely in the hole. By doing so, the bushing portion can be rotated with respect to the case hole, and there is no damage such as tearing of the cord when the cord is connected to a case such as a rotating body.

Further, in the present invention, the case hole includes a large hole larger than the outer diameter of the bushing and a small hole smaller than the outer diameter of the bushing and larger than the groove. And By doing so, the bushing can be easily inserted and fixed in the case hole.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. FIG. 1 shows a sectional view of a locking portion structure according to a first embodiment of the present invention. The cord 4 is composed of a core wire 1 and a covering portion, and the covering portion is composed of an insulator 2 and a sheath material 3 that sequentially cover the outer peripheral surface of the core wire 1. At the end of the sheath material 3, a ring-shaped metal part 5 (FIG. 2) having a recess 5a in part is caulked. The metal component 5 is caulked onto the sheath material 3 so as to bite into the sheath material 3 so as to be securely fixed. Therefore, it is desirable to form a protrusion that penetrates into the sheath material 3 on the inner peripheral side of the metal component 5. Then, a bushing 6 is provided at the portion where the metal component 5 is crimped. The bushing 6 is formed by an injection molding method. The metal part 5 of the cord 4 is placed in a mold, and the material of the bushing 6 is injection molded to be integrated with the cord 4. The groove 8 is formed in the center of the outer peripheral surface of the bushing 6.
Is provided so that the bushing 6 fits into the insertion hole 9 provided in the case 7.

Next, FIG. 3 shows a sectional view of a locking portion structure according to a second embodiment of the present invention. The cord 4 is composed of a core wire 1 and a covering portion, and the covering portion is composed of an insulator 2 that sequentially covers the outer peripheral surface of the core wire 1 and a sheath material 3, and the insulator 2 that covers the core wire 1 has a predetermined length. Only exposed. A ring-shaped metal part 5 having a recess 5a in part was caulked on the side of the sheath material 3 near the boundary between the insulator 2 and the sheath material 3.

Next, FIG. 4 shows a sectional view of a locking portion structure according to a third embodiment of the present invention. The cord 4 is composed of a core wire 1 and a covering portion, and the covering portion is composed of an insulator 2 and a sheath material 3 for sequentially covering the outer peripheral surface of the core wire 1, and the sheath material 3
The bushing 3a is integrally formed at the end of the. A groove 8 which is loosely fitted in the case hole 9 is provided on the peripheral surface of the bushing 3a. The bushing 3a may be integrally formed with the sheath material 3, or may be formed by fixing another material on the sheath material 3.

In each of the above-described embodiments, the insertion hole 9 has a round hole shape in which a large hole into which the bushing 6 (3a) is inserted and a small hole into which the groove 8 of the bushing is fitted are continuously provided. is there. Since the large hole is formed larger than the outer diameter of the bushing 6 (3a) and the small hole is formed smaller than the outer diameter of the bushing 6 (3a) and larger than the groove 8, the groove of the bushing is formed. 8 is in a state of being loosely fitted in the small hole. The procedure for fixing the bushing 6 is as follows. First, the bushing 6 (3a) is inserted into the large hole, and then it is slid so that the groove 8 of the bushing and the small hole are fitted together, and the large hole is closed with a cap. With such a structure, the bushing 6 (3a) can be locked with respect to the case 7 so that it cannot be pulled out. Further, since the bushing 6 (3a) is loosely fitted into the insertion hole 9 of the case 7, the bushing 6 (3a) is made to follow the movement of the cord 4 such as twisting or rotation, and the bushing 6 (3a) is inserted into the insertion hole 9 of the case 7.
(3a) can be rotated.

[0016]

FIG. 5 and FIG. 6 show an embodiment in which the cord locking structure of the present invention is applied to a toilet device. The toilet device 10 according to the present embodiment includes a toilet bowl 11 made of pottery and a functional unit storage case 12 provided on the upper rear side thereof. A bearing housing 13 is provided on the front side of the functional unit storage case 12, and left and right sleeve portions 16 of the toilet seat 15 are pivotally attached to a support shaft 14 that projects left and right from the bearing housing 13. The left and right support shafts 14 are provided with opening / closing drive means (not shown) having motors for opening and closing the toilet seat 15 and the toilet lid 17, respectively, and the opening / closing drive means is housed in the bearing housing 13. A heater for keeping heat and a temperature sensor are built in the toilet seat 15 to constantly heat the toilet seat 15 to a predetermined temperature.

As shown in FIG. 6, a hook 18 having a non-circular cross section that hooks on the toilet lid 17 is provided at the tip of the support shaft 14.
The toilet lid 17 is opened and closed by engaging with the engaging portion 18. The sleeve 1 provided on the base side (rear end) of the toilet seat 15 is attached to the support shaft 14 on the inner side of the engaging portion 18.
6 is attached, and a U-shaped cross section attached to the support shaft 14 from one direction at the base of the sleeve 16 on the side shown in FIG. 5 (referred to as the left sleeve when the toilet device 10 is viewed from the front, the same applies below). A notch 19 is provided. This notch 19 is the toilet seat 15
When the seat is closed and opened, the toilet seat 15 keeps the support shaft 1
It faces downward or diagonally downward so as not to come off from 4.

The sleeve 16 has a wiring cord 4 connected to a heater and a temperature sensor arranged in the toilet seat 15.
And the wiring cord 4 is inserted into the bearing housing 13
It is locked by the bushing 6 through the insertion hole 9 (an example of a cord connecting portion) provided in the side wall 21 of the (case 7), enters the bearing housing 13, and is arranged in the functional portion storage case 12. It is connected to a control device (not shown). From the sleeve 16 to the inside of the toilet seat 15 (ie,
At the rear end of the toilet seat 15), a cord storage portion 23 through which the wiring cord 4 passes is provided, and at the base side of the cord storage portion 23,
Cord retracting means 24 is provided.

The cord retracting means 24 has a rectangular guide box 25 through which the wiring cord 4 is inserted, a coil spring 26 which is disposed in the guide box 25 and surrounds the wiring cord 4 as a center, and the coil spring 26 is inserted. The wiring cord 4 has a bushing member 27 that is fixed at a position where the wiring cord 4 extends from the front side of the coil spring 26 in the free state. Coil spring 26
The base end of is supported by the base end of a guide box 25 which is a part of the cord housing portion 23. Therefore, for example, the toilet seat 1
When the wiring cord 4 is to be pulled out from the sleeve portion 16 when the wiring cord 5 is removed, the bushing member 27 provided on the front side of the wiring cord 4 contracts the coil spung 26. Alternatively, when the removed toilet seat 15 is fixed at a predetermined position, the wiring cord 4 becomes free, so that the coil spring 26 extends and the wiring cord 4 is automatically attached to the sleeve portion 16.
Pull in. The pulled-in wiring cord 4 is arranged in the cord storing portion 23 further on the back side of the cord pulling-in means 24.
If the strength of the coil spring 26 is too strong, an unreasonable load is applied to the wiring cord 4. Therefore, it is sufficient that the coil spring 26 has sufficient force to pull up the loosened wiring cord 4. Reference numeral 28 is a guide for the wiring cord 4.

Since the toilet device 10 having the locking portion structure according to the present invention has the above-described structure, even if the toilet seat is removed and forcibly pulled out when cleaning, the wiring cord 4 is pulled from the bushing 6 to the wiring cord. The 4 never leaves. Particularly when the insertion hole 9 for pulling out the wiring cord 4 has a narrow gap between the sleeve portion 16 of the toilet seat 15 and the bearing housing 13 as in the present embodiment, an extra length for allowing the movement of the wiring cord 4 to escape. However, it is preferable to adopt the locking portion structure as in the present invention because movement such as twisting or rotation of the wiring cord 4 can be released by the rotation of the bushing 6.

[0021]

As described above, according to the present invention, the cord can be fixed to the case so as to have sufficient resistance to the force of pulling the cord from the outside.
In addition, since the bushing of the cord is loosely fitted in the case, the movement of the bushing can follow the movement of the cord and damage to the cord can be prevented.

[Brief description of drawings]

FIG. 1 is a sectional view of a locking portion structure according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a ring-shaped metal part having a recess in part.

FIG. 3 is a sectional view of a locking portion structure according to a second embodiment of the present invention.

FIG. 4 is a sectional view of a locking portion structure according to a third embodiment of the present invention.

FIG. 5 is an overall perspective view of a toilet device to which the locking structure of the present invention is applied.

6 is a perspective view showing a cord drawer portion of the toilet device of FIG.

[Explanation of symbols]

1: core wire, 2: insulator, 3: sheath material, 3a: bushing, 4: wiring cord, 5: metal part, 6: bushing,
7: case, 8: groove, 9: insertion hole (case hole), 10:
Toilet device, 11: toilet bowl, 12: functional unit storage case, 1
3: bearing housing, 14: support shaft, 15: toilet seat, 1
6: sleeve part, 17: toilet lid, 18: engaging part, 19: notch,
21: side wall, 23: cord storage part, 24: cord retracting means, 25: guide box, 26: coil spring, 27: stopper member

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Jun Hatakeyama             1-1 Maigaoka, Kokuraminami-ku, Kitakyushu City, Fukuoka Prefecture             No. 1 in Pan Washlet Co., Ltd. F-term (reference) 4E352 AA06 BB02 BB10 CC02 CC15                       CC22 CC33 CC53 DD01 DR03                       DR13 DR14 DR40 DR42 EE03                       GG10 GG20                 5G361 AA06 AC11 AD01                 5G363 AA07 BA01 CB01 CB08 DC08

Claims (8)

[Claims] 1. A cord locking structure for locking a cord formed by sequentially covering an outer peripheral surface of a core wire with an insulator and a sheath material in a case hole, wherein the sheath material is caulked with a metal part, and the metal part is caulked. A cord locking portion structure characterized in that a bushing for fixing the case hole and the cord is provided in the portion. 2. A cord locking structure for locking a cord formed by sequentially covering an outer peripheral surface of a core wire with an insulator and a sheath material in a case hole, the insulator being exposed for a predetermined length. At the same time, a cord locking portion structure is provided in which a case hole and a bushing for fixing the cord are provided at a boundary portion between the exposed insulator and the sheath material. 3. The cord locking portion structure according to claim 2,
A cord locking structure, wherein a metal part is crimped on the sheath material, and a bushing is provided on the crimped part. 4. The cord locking part structure according to claim 1, wherein the metal part has a concave shape in part. 5. The cord locking portion structure according to claim 1, wherein a groove is provided on a peripheral surface of the bushing, and the groove is loosely fitted in the case hole. 6. The cord locking portion structure according to claim 1, wherein the bushing is manufactured so as to be integrated with the cord. 7. A cord locking structure for locking a cord formed by sequentially covering an outer peripheral surface of a core wire with an insulator and a sheath material in a case hole, wherein the sheath material is integrally provided with a bushing. A cord engaging portion structure, wherein a groove that is loosely fitted in the case hole is provided on the peripheral surface of the cord. 8. The case hole is a round hole in which a large hole larger than the outer diameter of the bushing and a small hole smaller than the outer diameter of the bushing and larger than the groove are continuously provided. The cord locking part structure according to any one of claims 1 to 7, which is characterized.