JP2000023336A - Cord attachment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cord attachment device, with which a cord bush can be attached to a housing easily, without employing a holder and attachment screws. SOLUTION: A cord attachment device has a cord bush 5, which consists of a main member 6 which has a cylindrical part whose one side is cut out and, which has a holding part holding a cord and a 1st flange 10 formed on the outer circumference of the cylindrical part and which is formed by integral molding and a pressing member 7, consisting of a pressing part which is mated with the cylindrical part of the main member and the cut-out part of the 1st flange part, presses the cord inserted into the holding part together with the bottom of the holding part and fills the cut-out part of the cylindrical part of the main member and a 2nd flange 20 which fills the cut-out part of the 1st flange of the main member, a 1st housing 2 of an electric apparatus which has a retaining part 41 which retains the 1st flange and the 2nd flange of the cord bush and a 2nd housing which can be coupled with the 1st housing and has a pressing part, which can be pressed against at least the 1st flange of the cord bush.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cord attaching device for preventing a cord of an electric device from being pulled out and pulled out, and more particularly to a cord attaching device for attaching a cord via an easily attachable cord bush. It is.

[0002]

2. Description of the Related Art In general, a cord of an electric device is fitted with a cord bush to prevent the cord from being pulled out and pulled out. By fixing the cord bush to the electric device, even if the cord is pulled. I am trying not to fall out. FIG. 14 shows a conventional example of a cord attaching device for attaching a cord via such a cord bush.
A cord bush 56 is fitted on the cord 55.
The cord bush 56 includes a main body member 56a through which the cord 55 is inserted, and a pressing member 56b. The pressing member 56b is fitted to the main body member 56a so that the cord 55 is bent a plurality of times. Has become.

A mounting portion 58 is provided on a side surface of a molded chassis 57 as a housing for mounting the code bush 56.
Is provided. The mounting portion 58 includes a cord bush 56.
There is a U-shaped notch 59 for inserting a U-shaped notch, and a reverse gate-shaped groove 60 is cut in the rear peripheral portion of the U-shaped notch 59 in a front view. An iron plate holder 62 for attaching the code bush 56 is inserted into the groove 60. A hole 62a is formed in the center of the holder 62 for inserting the code bush 56 and fitting the claw portion of the code bush 56 to prevent the code bush 56 from coming off. The upper portion of the holder 62 is bent outward at a substantially right angle, and a pair of left and right position fixing holes 62b and a screw mounting hole 62c are formed in the bent portion.

[0004] A position fixing hole 62 of the holder 62 is provided.
b is inserted into a guide projection 63 provided at the upper end of the mounting portion 58 to fix the position, and the screw mounting hole 62c of the holder 62 and the screw hole 64 at the upper end of the mounting portion 58 are aligned. In this state, the tip of the screw 65 is inserted into the screw mounting hole 62c and screwed into the screw hole 64, whereby the holder 62
Is fixed to the mold chassis 57. in this way,
By fitting the cord bush 56 and the holder 62 and fixing the holder 62 to the mold chassis 57 with screws 65, the cord 55 is prevented from being pulled out and pulled out.

[0005]

By the way, in the above-mentioned cord attaching device, the cord bush is fitted to the cord, then the cord bush is fitted to the iron plate holder, and then the iron plate holder is molded. It had to be fixed to the chassis with screws, which required considerable man-hours, was troublesome and troublesome. In addition, a steel plate holder and its mounting screws are required separately from the cord bush, and there is a problem that the number of parts is large.

SUMMARY OF THE INVENTION Accordingly, the present invention provides a cord mounting device which can easily attach a cord bush to a housing without using a holder or a mounting screw, and which solves the above-mentioned problems. It is the purpose.

[0007]

According to the present invention, there is provided a cord attaching device having a tubular portion having one side notched and having a holding portion for holding a cord, and a first portion provided around the outer periphery of the tubular portion. And a body part formed integrally with the flange part, and a cord inserted into the cylindrical part and the notch part of the first flange part and inserted into the holding part and pressed by the bottom surface of the holding part. A cord bush formed from a pressing member comprising a pressing portion for filling a cutout portion of a cylindrical portion of a main body member to be attached and a second flange portion for filling a cutout portion of a first flange portion of the main body member; A first housing of an electric device having an engagement portion that engages with the first flange portion and the second flange portion of the code bush; A contact portion that can contact the first flange portion is provided. Those with 2 of the housing.

[0008] In the cord mounting device according to the present invention,
Insert the cord into the holding part of the body member of the cord bush,
The holding member is fitted to the main body member, the first flange portion and the second flange portion of the cord bush are engaged with the engaging portion of the first housing, and then the first housing is connected to the second housing. The cord is fixed to the electric device by fitting the casing of the second casing to the contact portion of the second casing and contacting at least the first flange of the cord bush.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cord mounting device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a base cabinet and a rear cabinet, which are housings equipped with a cord bush according to the present invention. As shown in FIG. 1, a cord 3 is sandwiched between base cabinets 2 of electric equipment. A cord bush 5 is mounted. The cord bush 5 is for preventing the cord 3 connected to a transformer or the like of the electric device from falling out of the electric device even when pulled. Then, the rear cabinet 4 is fitted to the base cabinet 2 to which the cord bush 5 is attached in order to fix the cord bush 5. The details of the base cabinet 2 and the rear cabinet 4 will be described later.

First, the structure of the cord bush will be described. 2 is a perspective view of the cord bush in an unassembled disassembled state, FIG. 3 is a side view thereof, FIG. 4 is a plan view thereof, and FIG. 5 is a sectional view thereof. As shown in FIGS. 2 and 3, the cord bush 5 has a main body member 6 for inserting the cord 3 and fixing the cord bush 5 to the base cabinet 2, and the cord 3 is fitted to the main body member 6 to form the cord 3. It is composed of a holding member 7 for holding in a bent state, and a connecting piece 8 for connecting the main body member 6 and the holding member 7.

As shown in FIGS. 2 to 5, the main body member 6 includes a flange portion 10 as a first flange portion to be fitted into a groove 41 described later provided in the base cabinet 2, and a flange portion. It comprises a cylindrical portion 11 for penetrating the portion 10 and holding the cord 3 extending in the front-rear direction. One side of the flange portion 10 and the cylindrical portion 11 is cut out, and a U-shaped concave groove 12 is cut in the front view for inserting the cord 3.

In the U-shaped concave groove 12 of the cylindrical portion 11, pressing plates 14, 15, 16 are provided in order from the front end so as to press one side of the inserted cord 3. The holding plate 14 is disposed at the tip of the groove 12 and holds the holding plate 1.
5 is disposed at a position forward of the flange portion 10, and the holding plate 16 is disposed at the rear end. Furthermore, the concave groove 1 of the cylindrical portion 11
Engagement holes 18 for engaging a pair of left and right claws 25 of the holding member 7, which will be described later, are formed in the left and right side walls between the flange portion 10 and the holding plate 16 in 2. Then, a retaining portion is formed from the concave groove 12 and the holding plates 14, 15, 16.

A pressing member 7 fitted to the main body member 6
Is composed of a flange portion 20 which is a second flange portion which fits and compensates for the notch portion of the flange portion 10 and a pressing portion 21 which fits and compensates for the notch portion of the cylindrical portion 11. The holding portion 21 has an inclined portion 22 provided at the tip inside (the upper surface in FIGS. 2 to 5), and a concave groove 23 is formed adjacent to the inclined portion 22. The inclined portion 22 is for holding and guiding the cord 3 with the holding plate 14 of the main body member 6, and the concave groove 23 is for holding and bending the cord 3 with the holding plate 15 ( See FIG. 8).

A pair of claw portions 25 which can be engaged with the engagement holes 18 of the main body member 6 are provided on both right and left sides adjacent to the rear end of the concave groove 23. A pressing projection 26 having a height lower than that of the nail 25 is projected between the pair of nails 25. Projections extending in the left-right direction are provided on both sides of the tip (the upper end in FIG. 2) of the pressing projection 26. 26a is provided. The holding projection 26 is for holding and bending the cord 3 with the concave groove 12 of the main body member 6 facing thereto, and the projection 26 a is provided to allow the cord 3 to bite into the cord 3 and be firmly held. (See FIG. 8).

The engaging hole 18 of the main body member 6 has a step 30.
The claw portion 25 of the holding member 7 is guided by the step 30 so that the engagement hole 1 is easily formed.
8 can be engaged.

FIG. 6 is a view of the mounted cord bush as viewed from the inside of the base cabinet, and a reverse gate-shaped thin plate portion 10a is provided on the periphery of the main body member 6 except for the upper side of the flange portion 10. On the other hand, the flange portion 20 of the holding member 7 is also provided with a thin plate portion 20a for replenishing the cutout portion of the inverted gate-shaped thin plate portion 10a. This thin plate portion 10a,
20a is for facilitating insertion and attachment of the cord bush 5 in a groove 41 of the base cabinet 2 which will be described later.

FIG. 7 is an explanatory view showing a state in which the cord bush is attached to the cord, (a) shows a state in which the cord is inserted into a main body member of the cord bush, and (b)
Indicates a state where the holding member is fitted to the main body member into which the cord is inserted. FIG. 8 is a cross-sectional view showing a state in which a cord bush is attached to the cord shown in FIG. 7B. As shown in FIG. 8, the inclined portion 22 of the holding member 7 is connected to the holding plate 14 of the main body member 6 by the cord 3. Pinch and guide. This inclined part 2
The distance between the cord 2 and the holding plate 14 is wider than the cord 3, and allows the cord 3 to bend freely. Then, the cord 3 is sandwiched between the concave groove 23 and the holding plate 15 and the first bending is performed.

The holding projection 26 holds the cord 3 with the concave groove 12 of the main body member 6 and makes the second bending, and holds the cord 3 with the holding plate 16 and makes the third bending. Let At this time, the projections 26a on both sides of the tip of the pressing projection 26 bite into the cord 3, so that the cord 3 can be firmly held. As described above, since the cord 3 is bent three times and the holding projection 26 and the projections 26a on both ends of the cord 3 firmly hold the cord 3, the cord 3 can come out of the cord bush 5 with a force within a predetermined range. There is no.

Next, a base cabinet to which the cord bush 5 is mounted will be described. FIG. 9 is a perspective view showing a cord bush mounting portion of the base cabinet, and FIG. 10 is a plan view thereof. A mounting portion 36 for mounting the code bush 5 is provided on a part of the side plate 35 of the base cabinet 2. The mounting portion 36 is roughly formed of right and left pillar portions 38 and a U-shaped notch 39 provided between the left and right pillar portions 38 and through which the cord bush 5 is inserted.

Behind the U-shaped cutouts 39 of the left and right pillars 38, left and right stepped portions 38a are provided which extend in the left-right direction from the U-shaped cutouts 39, respectively. Between the left and right stepped portions 38a and the left and right stepped portions 38a, there are vertical gate-shaped grooves 41 in front view for inserting and fitting the thin plate portions 10a, 20a of the flange portions 10, 20 of the cord bush 5 in the vertical direction. And it is engraved so as to extend in the left-right direction. That is, the groove 41 serving as the engaging portion is provided in the flange portion 1 of the cord bush 5.
It is provided for fitting with the thin plate portions 10a, 20a on the three sides 0, 20. A guide taper 41a is provided at the upper end on both the left and right sides of the groove 41 to facilitate insertion of the thin plate portions 10a and 20a of the cord bush 5.

Further, since the step portions 38a make surface contact with the thick portions of the flange portions 10 and 20 of the cord bush 5, even if the cord bush 5 is pulled outward, the cord bush 5 can be prevented from coming off with sufficient strength. In the state where the thin plate portions 10a, 20a of the flange portions 10, 20 of the cord bush 5 integrated with the groove 41 are inserted and fitted, FIG.
As shown in FIG. 3, the upper end of the flange portion 10 is
8 slightly projecting.

FIG. 11 is a perspective view of a rear cabinet attached to the base cabinet. A pair of left and right legs 47 are provided at the lower end, and a cord 3 is provided near one of the legs 47.
An inverted U-shaped notch 48 for inserting the cord bush 5 is provided. On both left and right sides of the upper portion of the notch 48, pressing ribs 49 for abutting on the outside of the column portion 38 of the base cabinet 2 extend in the left-right direction, and hold the upper end of the flange portion 10 of the cord bush 5 above the notch 48. A pair of left and right holding ribs 50 are provided in the vertical direction. In FIG. 11, reference numeral 51 denotes a rib for reinforcement, and 52 denotes a slit for heat radiation.

FIG. 12 is a plan partial sectional view showing a state where the rear cabinet is attached after the cord bush is attached to the base cabinet, and FIG. 13 is a front partial sectional view thereof. In FIG. 13, only the rear cabinet portion is shown in cross section for easy understanding. As shown in FIGS. 12 and 13, the upper end of the flange portion 10 of the cord bush 5 is pressed by the right and left pressing ribs 50, which are the contact portions of the rear cabinet 4, and the left and right pressing ribs 4 are further pressed.
9 presses the outer sides of the left and right pillars 38 of the base cabinet 2. The pressing rib 50 prevents the cord bush 5 from moving upward, and is firmly fixed to the base cabinet 2.

Next, an apparatus for attaching a cord bush according to the present invention will be described with reference to FIGS. First, as shown in FIG. 10, the thin plate portions 10a and 20a of the flange portions 10 and 20 of the cord bush 5 holding the cord 3 are inserted and fitted into the grooves 41 of the base cabinet 2. At this time, the thin plate portions 10a, 20a of the cord bush 5 can be easily fitted into the grooves 41 by being guided by the taper 41a. In this groove 41, the thin plate portion 10a of the cord bush 5
In a state where the plug 20a is inserted and fitted, the upper end of the flange portion 10 of the cord bush 5 slightly protrudes from the left and right pillar portions 38.

When the rear cabinet 4 as shown in FIG. 11 is fitted to the base cabinet 2 to which the cord bush 5 is mounted, as shown in FIGS. 12 and 13,
The upper ends of the legs 47 of the rear cabinet 4 are in contact with the lower surface of the base cabinet 2, the pressing ribs 50 of the rear cabinet 4 are in contact with the upper ends of the flange portions 10 of the cord bush 5, and the right and left pressing ribs 49 of the rear cabinet 4. The base cabinet 2 and the rear cabinet 4 fit together (see FIG. 1). The legs 47 and the holding ribs 50 position vertically, and the holding ribs 49 position right and left. That is, the holding rib 50 of the rear cabinet 4
Abuts against the upper end of the flange portion 10 of the cord bush 5 so that the cord bush 5 is prevented from moving upward. Therefore, the flange portions 10 of the cord bush 5,
Since the four sides of the cord bush 20 are fixed by the groove 41 and the holding rib 50, the cord bush 5 is securely fixed to the base cabinet 2.

After the base cabinet 2 and the rear cabinet 4 are fitted, the base cabinet 2 and the rear cabinet 4 are integrally connected by screws (not shown).

Therefore, in order to attach the cord bush 5 to the base cabinet 2, it is only necessary to insert the flange portions 10 and 20 of the cord bush 5 into the grooves 41 of the base cabinet 2 and to fit them. There is no need to fit a cord bush to the base plate and fix the iron plate holder to the base cabinet with screws, which makes the installation extremely simple.

Further, since a cord bush with a flange can be easily attached, a conventional iron plate holder and screws for attaching the same are not required, and the number of parts can be reduced.

In the above-described embodiment, the flange portion of the cord bush is rectangular. However, the present invention is not limited to this, and it is a matter of course that other shapes such as a polygon and an ellipse may be used.

[0031]

As described above, according to the present invention,
Since the integrally formed flange is provided on the cord bush,
A separate code bush holder is not required, and the number of parts can be reduced.

Further, the first and second flange portions of the cord bush are engaged with the engaging portions of the first housing, and the second housing is fitted to the first housing. By contacting the contact portion of the second housing with at least the first flange portion of the cord bush, the cord bush can be easily fixed to the electric device. The step of mounting and fixing the cord bush holder to the cabinet with screws is unnecessary, and the screws for attaching the code bush holder are not required, so that the cord bush can be extremely easily mounted.

[Brief description of the drawings]

FIG. 1 is a perspective view of a base cabinet and a rear cabinet equipped with a cord bush according to the present invention.

FIG. 2 is a perspective view of a disassembled cord bush that is not assembled.

FIG. 3 is a side view of a disassembled cord bush that is not assembled.

FIG. 4 is a plan view of the cord bush in an unassembled disassembled state.

FIG. 5 is a sectional view of the cord bush in an unassembled disassembled state.

FIG. 6 is a view of the cord bush attached to the base cabinet as viewed from inside the base cabinet.

FIGS. 7A and 7B are explanatory views showing a state in which a cord bush is attached to a cord, wherein FIG. 7A shows a state in which the cord is inserted into a main body member of the cord bush, and FIG. Indicates a combined state.

FIG. 8 is a sectional view showing a state in which a cord bush is attached to the cord.

FIG. 9 is a perspective view showing a cord bush mounting portion of the base cabinet.

FIG. 10 is a plan view showing a state where a cord bush is attached to a cord bush attachment portion of a base cabinet.

FIG. 11 is a perspective view of a rear cabinet attached to a base cabinet.

FIG. 12 is a partial plan sectional view showing a state where a rear cabinet is attached to a base cabinet to which a cord bush is attached.

FIG. 13 is a front partial sectional view showing a state where a rear cabinet is attached to a base cabinet to which a cord bush is attached.

FIG. 14 is a perspective view of a conventional cord attachment device.

[Explanation of symbols]

 2 Base Cabinet 3 Cord 4 Rear Cabinet 5 Cord Bush 6 Body Member 7 Pressing Member 8 Connecting Piece 10 Flange (First Flange) 11 Cylindrical Part 12 Groove 20 Flange (Second Flange) 21 Pressing Part 25 Claw part 26 Projection part 36 Mounting part 38 Column part 39 U-shaped notch 41 Groove (engagement part) 49 Pressing rib 50 Pressing rib (contact part)

Claims (1)

[Claims] 1. A tubular portion having a notch on one side and having a holding portion for holding a cord, and a first portion provided around an outer periphery of the tubular portion.
And a body part formed integrally with the flange part, and a cord inserted into the cylindrical part and the notch part of the first flange part and inserted into the holding part and pressed by the bottom surface of the holding part. A code bush formed of a pressing member including a pressing portion that fills a cutout portion of a cylindrical portion of a main body member to be attached and a second flange portion that fills a cutout portion of a first flange portion of the main body member; A first housing of an electric device having an engaging portion that engages with the first flange portion and the second flange portion of the code bush; A second housing provided with a contact portion capable of contacting the first flange portion, wherein a cord is inserted into a holding portion of the main body member of the cord bush, and the holding member is fitted to the main body member. The cord bush, The flange portion and the second flange portion is engaged with the engagement portion of the first housing, then the first
The cord is attached to the electric device by fitting the casing and the second casing to each other and contacting the contact portion of the second casing with at least the first flange portion of the cord bush. A cord attaching device characterized by being fixed.