JPH0322949Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a fixing device for a power cord used in electronic equipment such as a television receiver.

(b) Prior Art FIG. 9 shows a perspective view of a conventional cord holder.
A lid body 4 is connected to the base body 3 so as to be openable and closable. A concave notch 5 is formed on the upper end surface of the base body 3, and a convex rib 9 having a concave portion 8 shaped to receive a power cord (parallel vinyl cord) 7 is provided in the concave portion 6. A rib 10 is further provided in parallel with the shaped rib 9, and a guide portion 11 for guiding the power cord in a right angle direction and a projection piece 12 formed on the guide portion 11 are provided. A claw piece 14 is bent at 2 and when closed, engages with the recess 13 of the base body 3 to maintain the closed state, and together with the recess 5 in the closed state, a cord insertion hole is formed. A recess 15 is provided. To hold the power cord, place the power cord 7 as shown by the dashed line, close the lid 4 in the direction of the arrow, and insert the notch 17 provided in the cabinet bottom plate 16 of the device as shown in FIG. It is attached to the cabinet bottom plate 16 by fitting the projecting piece 12 into the groove 18 formed between the base body 3 and the lid body 4, as shown in FIG.

By the way, in the conventional cord holder, in order to securely hold the power cord, the convex ribs 9 are dimensioned to press strongly against the covering of the power cord, so it is difficult to close the lid 4. However, since it requires a large force to engage the claw pieces 14 and is difficult to close manually, it must be closed using a tightening jig, which increases work man-hours and reduces work efficiency. It was causing a decline. In addition, this holding method puts extreme pressure on the power cord, so there is a risk of the cord breaking.

Furthermore, since the conventional cord holder is attached to a notch 17 provided in the cabinet bottom plate 16, the printed board 19 placed on the bottom plate 16 is cut out (the part to be cut out is indicated by the dashed-dotted line in FIG. 11). ), a space must be provided to accommodate the cord holder, resulting in a disadvantage that the cord holder occupies a large area on the printed board. Incidentally, a similar cord holder is described in, for example, Japanese Utility Model Publication No. 15351/1983.

(c) Problems to be solved by the invention The invention makes it possible to easily fix the power cord, securely hold it without damaging it, and minimize the area occupied by the printed circuit board. ing.

(d) Means for solving the problem A base, wing pieces provided at the bottom of both sides of the base and slidably inserted into slits provided in the cabinet bottom plate, and wing pieces protruding from the upper end surface of the base and printed. A cylindrical portion coupled to a notch provided in the plate, a hole provided on the lower end surface of the base and connected to the hollow portion of the cylindrical body is formed on the bottom surface, and the tube is drawn out through the hollow portion and the hole. A cord holder is provided, which has a circular groove into which the power cord is fitted, and a cutout, which is provided on the rear surface of the base so as to be continuous with the groove and into which the power cord is press-fitted.

(E) Function The power cord is bent between the hole connected to the cylindrical part of the cord holder and the groove, and then fitted into the groove and bent again between the groove and the notch to be retained. , the cylindrical part supports the printed board by being coupled with the printed board, and
By sliding the wing pieces into the slits in the cabinet bottom plate, the printed board, the cord holder, and the cabinet bottom plate are joined together.

(F) Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 8.

Fig. 1 is a perspective view showing an embodiment of the cord fixing device of the present invention, Fig. 2 is a sectional view taken along line A-A' of the cord holder used therein, and Fig. 3 shows the cord holder shown on the back side. The cord holder 20 made of a synthetic resin material having elasticity includes a base 21, wing pieces 22 provided at the bottom of both sides of the base 21, and a cord holder 20 made of a synthetic resin material having elasticity. a cylindrical portion 23 protruding from the upper end surface; a circular groove portion 27 provided on the lower end surface of the base portion 21 and having a hole 25 connected to the hollow portion 24 of the cylindrical portion 23 formed in the bottom surface 26; A notch 30 is integrally provided on the rear surface 28 of the base 21 so as to be continuous with the notch 27 and has a pair of locking protrusions 29, 29 facing each other. Said cylindrical part 2
3 is divided into two parts by a slit 31 that reaches the upper end surface of the base 21, and is provided with a pair of flanges 32, 32.
3 is formed, and the engagement groove 3 is further formed as shown in FIG.
The bottom part 34 of 3 is provided with protrusions 35, 35.

In FIG. 3, a protruding strip 37 is provided on the outer circumferential surface of the cylindrical body 36 forming the groove 27, thereby allowing the power cord to be press-fitted into the groove 27.

On the other hand, the cord holder 2 is attached to the printed board 38.
A notch 39 into which the engagement groove 33 of No. 0 is fitted is provided, and the notch 39 is further formed with a recess 40 that can be engaged with the protrusion 35. Further, a recess 43 having a pair of protrusions 42 is provided at the rear of the cabinet bottom plate 41 of the television receiver.
The wing piece 2 of the cord holder 20 is inserted into the slit 45 formed by the protruding piece 42 and the bottom surface 44 of the recess 43.
2 and 22 are slid into place and are closely fitted. The bottom rear end portion 46 of the recess 43 is tapered to facilitate sliding insertion of the wing piece 22. 47 and 48 are rails into which the printed board 38 is slidably inserted and for supporting the printed board 38.

To fix the power cord, first, one end of the power cord of the printed circuit board 38 is soldered and the other end is connected to the bottom surface 26 of the base 21 through the hollow part 24 of the cylindrical part 23 and through the hole 25 connected thereto. Pull it out to the side. Next, the engagement groove 33 provided on the cylindrical portion 23 is fitted into the notch 39 of the printed board 38, and when it is fitted in the state shown in FIG. 4A and rotated as shown in FIG. When the protrusions 35, 35 come into contact with the end surface of the printed board 38, and are bent in the direction (indicated by the arrow) in which the width of the slit 31 becomes narrower, and are further rotated, the protrusions 35 as shown in FIG.
is fitted into the recess 40, so this time the slit 3
The cord holder 20 is elastically returned so that the width of the cord holder 1 becomes wider (as shown by the arrow), and the protrusion 35 and the recess 40 are elastically held in an engaged state, thereby fixing the cord holder 20 to the printed board 38. . Next, as shown in FIG. 5, the power cord 49 is press-fitted into the circular groove 27 so as to go around 3/4 of the way, and is then fitted into the notch 30 and led out. 49
The cord is prevented from coming off the groove 27 by the pressure contact of the projecting strip 37 and the locking protrusion 29, and the hole 25 and the groove 27 are held at right angles against the tension of the power cord 49. It is bent in the direction, wrapped around the cylindrical body 36 so as to make a 3/4 turn inside the groove 27, and is held by being bent again between the groove 27 and the notch 30, so that it is prevented from coming off. This is preferably done.

With the cylindrical portion 23 connected to the printed board 38 in this manner, the wing pieces 22, 22 are slid into the slit 45 provided in the cabinet bottom plate 41, and at the same time, the printed board 38 is also connected to the rail 47, The slide is inserted between 48 and 48. FIG. 6 shows the power cord fixing device assembled as described above.
If the tapered surface 50 is also provided at the rear end, it will be easier to attach the cord holder 20 by sliding it into the cabinet bottom plate 41. still,
The cord holder 20 is prevented from coming off when the rear case (not shown) is attached to the rear end portion 57 of the cabinet (see FIG. 1).

7 and 8 show another embodiment of the present invention, and the difference from the previous embodiment is that the side surface of the cylindrical portion 51 provided on the upper end surface of the cord holder 20' includes support ribs 5 that protrude in the radial direction.
2 and a pair of elastic claw pieces 5.
3,53 are planted. The printed board 38 and the cylindrical portion 51 are connected to each other by the printed board 38.
The cylindrical portion 5 is inserted into the through-hole notch 54 that is pre-drilled in the cylindrical portion 5.
1 until the supporting ribs 52 provided therein abut against the back surface of the printed board 38, and the elastic claw piece 53 is inserted into the engagement hole 55 through its tapered surface 56.
This is done by inserting the holder into pressure contact with the end surface of the engagement hole 55 and elastically engaging the engagement hole 55. Then, as in the previous embodiment, the cord holder 20' is attached to the cabinet bottom plate 41 as shown in FIG. It should be noted that the parts other than those described above are the same as those in the previous embodiment, so the same reference numerals are given and the explanation thereof will be omitted.

(g) Effect of the invention According to the invention, the power cord led out from the cylindrical part of the cord holder is fitted into the circular groove and press-fitted into the notch provided so as to be continuous with the groove. As a result, the power cord can be easily and firmly held in place by hand, and damage to the power cord can be prevented since the power cord is not compressed with excessive force. Further, since it is necessary to cut out only the portion of the printed board that is connected to the cylindrical portion, the area occupied by the cord holder on the printed board can be reduced as much as possible. Further, since the portion of the printed board that is connected to the cylindrical portion is supported by the cylindrical portion, the deflection of the printed board at that portion is small, and peeling of the copper foil pattern can be prevented. Furthermore, since the printed board, the cord holder, and the cabinet bottom plate are connected together, there is an advantage that relative displacement is less likely to occur.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing one embodiment of the power cord fixing device of the present invention, Fig. 2 is a sectional view taken along the line A-A', and Fig. 3 shows the back side of the parts used in the present invention. The perspective view, FIGS. 4 and 5 are views for explaining the method of assembling the fixing device of the present invention, FIG. 6 is a view showing the assembled state, and FIG.
8 and 8 are diagrams for explaining other embodiments of the present invention, respectively. FIG. 9 is a perspective view of parts used in a conventional power cord fixing device, FIG. 10 is a diagram showing the bottom plate of the cabinet, and FIG. 11 is a diagram for explaining how to assemble the conventional power cord fixing device. . 20, 20'...cord holder, 21...base,
22... Wing piece, 23, 51... Cylindrical part, 24...
Hollow part, 25... Hole, 27... Groove, 29... Locking protrusion, 30... Notch, 38... Printed board,
39, 54...notch, 41...cabinet bottom plate, 45...slit, 49...power cord.

Claims (1)

[Scope of utility model registration request] A base, wing pieces provided at the lower portions of both sides of the base, a cylindrical portion protruding from the upper end surface of the base, and a hole provided on the lower end surface of the base and connected to the hollow portion of the cylindrical portion. A cord holder having a circular groove formed on the bottom surface and a notch provided on the rear surface of the base so as to be continuous with the groove, and the power cord is inserted into the cylindrical portion and the hole. ,
The wing piece is fitted into the groove and press-fitted into the notch, and with the cylindrical part connected to the notch provided in the printed board, the wing piece is slid into a slit provided in the cabinet bottom plate. A power cord fixing device featuring: