JPH0665085B2 - plug - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a horizontal cord-type plug used as a wiring device.

[Background technology]

As the plug, there is a horizontal cord type (horizontal cap) 1 as shown in FIG. As shown in the drawing, the plug 1 includes a body 2 including an upper case 2a and a lower case 2b. From the bottom surface of the lower case 2b, the blades 3a, 3b project,
A cord 4 electrically connected to 3b is pulled out from a cord outlet (not shown in the figure) provided on the side surface. The blades 3a and 3b are vertically arranged so that their width directions are orthogonal to each other and are T-shaped. The tip of the cord 4 is connected to the electric device 5. In the figure,
Reference numeral 6 denotes an outlet to which the plug 1 is connected, and the insertion ports 6a and 6b are vertically arranged so that their length directions are orthogonal to each other and are T-shaped. Plug 1
Is connected to the outlet 6 so that the blades 3a and 3b are inserted into the insertion openings 6a and 6b.

When connecting to a power outlet, the conventional side-plug type cord limits the direction in which the cord outlet opens and limits the direction in which the cord can be pulled out. There was the inconvenience that the cord could not be turned toward the instrument and the cord was bent at an acute angle to cause disconnection, or that it became difficult to connect the plug to an outlet. In the case of the plug and the outlet shown in FIG. 8, when the plug 1 is connected to the outlet 6, the cord outlet is directed downward and the cord withdrawal direction is limited to the downward direction. Therefore, when the electric device is installed in the lateral direction of the outlet 6, as shown in the figure, the cord 4 is bent at an acute angle, and as described above, there is a high risk of disconnection, or This causes the inconvenience that it becomes difficult to connect the plug to the outlet.

Therefore, a side-plug type plug has been developed in which a plurality of cord outlets having different opening directions are provided on the side surface of the body, and the cord outlets can be changed as needed.

This side-out type plug is desired to be small in size so that dust or the like is unlikely to enter inside.

[Object of the Invention]

The present invention has been made in view of the above circumstances, and provides a plug of a cord lateral extension type capable of withdrawing a cord in a plurality of directions, which can be downsized and in which dust or the like is unlikely to enter. Is intended.

[Disclosure of Invention]

The inventors have conducted extensive research in order to achieve the above-mentioned object. As a result, it has been found that a notch serving as a cord outlet is provided on the side surface of the lower case, and a convex portion that is fitted into the notch where the cord is not drawn may be provided on the upper case. Completed this invention.

Therefore, according to the present invention, a body including an upper case and a lower case and a blade that projects from the bottom surface of the body are provided, and a plurality of cord outlets having different opening directions are provided on the side surface of the body to change the cord withdrawing direction. It is a plug of a cord horizontal type that is made possible,
The cord outlet comprises a notch provided on the side surface of the lower case, the side surface of the upper case, a plug characterized in that a convex portion fitted into the notch from which the cord is not provided is provided There is.

The present invention will be described in detail below.

1 to 5 show one embodiment of the plug according to the present invention. As shown in the figure, this plug is provided with a body 9 in which a lower case 7 and an upper case 8 are combined, metal fittings 10 and 11, and a cord stopper 12, respectively. The lower case 7 has a substantially square shape (symmetrical shape) in a plane, and the cord outlets 13 to 16 of the same shape are provided on the four sides. Each of the cord outlets 13 to 16 is a trapezoidal notch provided at the upper end of the peripheral wall, and curved surfaces (R) 13a to 16a are provided at the inner ends. If the cord outlet is trapezoidal and the inner end is provided with a curved surface, the cord 29 connected to the metal fittings 10 and 11 can be smoothly wrapped around. However, this does not necessarily have to be the case. On the side surface of the lower case 7, there is provided a step 17 which is used for hooking and removing a plug by hooking a finger. An S-shaped ridge (rib) 18a is provided in the center of the lower case 7, and the ridge 18
Protrusions (ribs) 18b and 18c are provided on both sides of a. The protrusion 18a and the protrusions 18b and 18c are the metal fittings 1.
The cord 29 connected to 0 and 11 is smoothly wrapped around the cord 29,
29b and the metal fittings 10 and 11 are prevented from contacting each other, and when the crimp terminal 30 is used, it is provided so as to prevent the crimp terminal 30 from rotating. Furthermore, ridge 1
The reference numeral 8 a also serves as an insulating wall between the metal fittings 10 and 11 of different polarities, the terminal screw 27 and the crimp terminal 30. However, such a convex strip or a convex portion is not always necessary. A screw insertion hole 7a is formed in a side portion of the lower case 7 so as to vertically penetrate therethrough. In the bottom of the lower case 7, the through-holes 19a, 19a,
b is provided, and the through holes 19a and 19b communicate with the inside on both sides of the ridge 18a. Further, at the bottom of the lower case, a driving stud 7b for fixing the metal fittings 10 and 11 and a press-fitting hole 7 are provided.
Two c are provided. The upper case 8 is provided with a tension removing portion 20 on its side portion, and on the remaining three sides where the tension removing portion 20 is not provided, a convex portion (projection portion, tongue piece) 21 fitted into the cord outlets 13 to 16. Is provided. The convex portions 21 have the same shape (trapezoidal shape) as the cord outlet.
At the center of the back side of the protrusion 21, a protrusion 21a extending vertically is provided. The ridges 21a are the protrusions 2
For reinforcing the strength of No. 1, when connecting the lower cover 7 and the upper cover 8 after connecting the cord 29, guide the cord so that the extension lines 29a and 29b of the cord are not caught between the lower cover 7 and the upper cover 8. Used as a guide. This ridge 21a is not always necessary. A screw insertion hole 8a that opens downward is provided at the lower end of the upper case 8. The hole 8a has a bag shape. Substantially hook-shaped protrusions (skirts) 20 a and 20 b are provided on both sides of the back surface of the tension removing portion 20, and both protrusions 20
The cord 29 is pulled out from between a and 20b. A substantially circular arc-shaped (recessed R-shaped) recess 20c is provided in the center of the back surface of the tension removing portion 20.
Two convex stripes 32 are provided on c. 2 ridges 3
A groove 22 is provided between the two. The outer end of the recess 20c is a curved surface (R-falling shape) 23. Insertion holes 3 into which screws 24 are inserted are formed on both sides of the back surface of the tension removing portion 20.
3 is provided. This hole 33 opens downward,
It has a bag shape. The upper case 8 can be matched with the lower case 7 by arranging the tension removing portion 20 toward any of the cord outlets 13 to 16 of the lower case 7. Screws 24 are attached to both ends of the cord stopper 12.
Is provided with a screw insertion hole 12a, and a substantially arc-shaped (recessed R-shaped) recess 12b is provided at the center of one surface. The outer end of the recess 12b has a curved surface (R-falling shape) 12c.
Has become. The curved surface 23 of the tension removing portion 20 and the curved surface 12c of the cord stopper 12 are provided for the purpose of removing the tension of the cord and improving the flexibility of the cord, but such a curved surface is not always required. There is no. The recess 12b is provided with a ridge 12d.
The metal fitting 10 includes a blade portion 10a and a terminal portion 10b. The terminal portion 10b has a hole 26a through which a driving tack 25 is inserted, a screw hole 28a into which a terminal screw 27 is inserted, and a protrusion 34a.
Is provided. The metal fitting 11 also includes the blade portion 11a and the terminal portion 11b, and the terminal portion 11b has a hole 26b through which the driving tack 25 is passed and a screw hole 28 into which the terminal screw 27 is inserted.
b and the protrusion 34b are provided.

This plug is assembled, for example, as follows. First, the plug blade portion 10a of the metal fittings 10 and 11
And 11a are passed through the through holes 19a and 19b, and the blade portions 10a and 11a are projected from the bottom surface of the lower case 7. The length directions of the blade portions 10a and 11a are orthogonal to each other. Next, the protrusions 34a and 34b of the metal fittings 10 and 11 are inserted into the press-fitting holes
While press-fitting into c and 7c, the fasteners 25 are driven into the holes 7b and 7b through the holes 26a and 26b, and the metal fitting 10,
11 is fixed to the lower case 7. Extension 29 of code 29
The connecting terminals 30 are fixed to the conductor tips of a and 29b, and the connecting terminals 30 are connected to the terminal portions 10b and 11b by the terminal screws 27. Then, the cord 29 is pulled out from any one of the cord outlets 13 to 16. For example, as shown in FIG. 2 (b), the inner lines 29a and 29b of the cord 29 are guided by the ridges 18a and the ridges 18b and 18c to be guided to the cord outlet 13. From the cord outlet 13. When the cord 29 is pulled out from the cord outlet 14, (a) in FIG. 3, when pulled out from the cord outlet 15 (b) in FIG. 3, the cord outlet 16 is shown.
In the case of further pulling out, the extension lines 29a and 29b of the cord 29 are guided to the cord outlet as shown in FIG. When the cord 29 is pulled out from the cord outlet 13, the tension removing section 20 is attached to the cord outlet 13.
The lower case 7 and the upper case 8 are aligned toward each other.
At this time, the remaining cord outlets 14, 15 and 16 from which the cord 29 is not pulled out are closed by the convex portions 21 of the upper case being fitted. Next, the screw 31 is passed through the hole 7a and further screwed into the hole 8a to fix the cases 7 and 8. When the cord 29 is pulled out from another cord outlet, the tension removing portion 20 is directed toward the cord outlet,
The lower case 7 and the upper case 8 are aligned. When the lower case 7 and the upper case 8 are combined, the positioning and displacement prevention (rotation stop) of the upper case 8 are performed by the convex portions 21 ... After that, the cord stopper 12 is placed on the back side of the tension removing portion 20 so that the recess 12b is brought into contact with the cord 29, the screw 24 is passed through the hole 12a, and further screwed into the hole 33, so that the cord stopper 12 is released. Fix at 20. Then, the cord 29 is pressed and fixed by the cord stopper 12, and the tension applied to the inner portion of the body of the cord 29 is removed. When the cord 29 is fixed, the ridges 32, 1
Since the 2d bites into the cord 29, the tension is surely removed. Further, since the tension removing portion 20 is provided with the concave portion 20c having a substantially arc shape (concave R shape) and the groove 22 is provided, the cord stopper 12 can hold the tension well, which also removes the tension. It is sure to be done. However, it is not always necessary to provide the ridge 32, the arc-shaped recess 20c, the groove 22 and the ridge 12d in the tension removing portion 20 and the cord stopper 12.

When changing the cord outlet, remove the cord stopper from the upper case, remove the upper case from the lower case, change the cord outlet, then attach the upper case to the lower case again and attach the cord stopper to the upper case.

As described above, this plug is provided with four cord outlets having different opening directions, and as shown in FIG. 5, the cord withdrawal direction can be arbitrarily selected from four directions. Since the direction of pulling out the cord 29 can be changed, changing the cord outlet increases the possibility that the cord will be bent at an acute angle to cause disconnection, or that the plug should be connected to an outlet. It is possible to reduce inconveniences such as difficulty. In addition, since the notch is provided on the side surface of the lower cover and the notch is used as the cord outlet, the cord outlet having two convex portions (ribs) is provided so as to protrude from the lower case. As compared with a case where the cord is pulled out from between the both convex portions, the body can be made smaller and the size can be easily reduced. Further, since the convex portion provided on the upper cover is fitted into the cord pull-out port through which the cord is not pulled out, there is almost no possibility that dust or the like will enter inside.

In the above-mentioned embodiment, the cord stopper 12 and the screw 24 for fixing the cord stopper are made invisible from the side by the protrusions 20a and 20b provided on the tension removing portion 20. However, such protrusion 2 is not always
It is not necessary to provide 0a and 20b. Further, the screw 24 for fixing the cord stopper and the screw 31 for fixing the lower case to the upper case are inserted from the back side of the body 9,
Since the screws are screwed into the bag-shaped holes 33 and 8a, the screws are not visible from the upper cover side and the appearance is good. However, this does not necessarily have to be the case. Tension reliefs and cord stops are not required.

6 and 7 show another embodiment of the plug according to the present invention. As shown in the figure, this plug has a body 3 including a lower case 35 and an upper case 36.
7, metal fittings 38, 39, 40 and a cord stopper 41, respectively. The lower case 35 has a substantially square shape (symmetrical shape) in a plane and has cord outlets 42, 43, 3
44 are provided. A recess 45 is provided on the remaining one side. Each of the cord outlets 42, 43, 44 is a trapezoidal notch provided at the upper end of the peripheral wall, and curved surfaces (R) 42a, 43a, 44a are provided at the inner ends. The recess 45 has the same shape as the cord outlets 42, 43, 44. On the side surface of the lower case 35, a step 46 used for hooking a finger and inserting / removing the plug is provided. At the center of the lower case 35, a hem 48 partitioned by a ridge (rib) 47 is provided, and an opening 49 is provided at the hem 48. Protrusions (ribs) 50 for ground electrode extension (cord) guides are provided on both sides of the groove 47. The ridges 47 and the protrusions 50 are the metal fittings 38, 39
The extension of the extension of the cord 51 connected to the 40 is made smooth, and the extension of the cord of the different polarity and the metal fitting are prevented from coming into contact with each other. Is provided. Further, the ridges 47 are metal fittings 38, 39, 4 of different polarities.
0, the terminal screw 27 and the crimp terminal also serve as an insulating wall. However, such a convex strip or a convex portion is not always necessary. A screw insertion hole 35a that penetrates vertically is provided in a side portion of the lower case 35. Three through holes (not shown) are provided in the bottom of the lower case 35, one of the through holes communicates with the hem 48, and the other two through holes communicate with the outside of the hem 48. . Further, the bottom of the lower case has a driving tack hole 35 for fixing the metal fittings 38, 39, 40.
Three b and press-fitting holes (not shown) are provided. The upper case 36 is provided with a tension removing portion 52 on its side portion, and the remaining three sides on which the tension removing portion 52 is not provided are convex portions (projecting portions) fitted into the cord outlets 42, 43, 44 or the concave portion 45. , Tongue piece) 53 is provided. Each of the convex portions 53 has the same shape (trapezoidal shape) as the cord outlet, and a convex strip (not shown) extending vertically is provided in the center of the back side of the convex portion 53, as in the case of the above-described embodiment. Is provided. The ridges serve to reinforce the strength of the ridges 53 and, after connecting the cord 51, when the lower cover 35 and the upper cover 36 are aligned, the extension of the cord 51 is sandwiched between the lower cover 35 and the upper cover 36. It is used as a guide or the like to guide you not to leave. A screw insertion hole (not shown) that opens downward is provided at the lower end of the upper case 36. This hole has a bag shape. Tension removing unit 52
On both sides of the back of the
a and 52b are provided, and the cord 51 is pulled out from between the protruding portions 52a and 52b. A substantially arc-shaped (recessed R-shaped) concave portion 52c is provided in the center of the back surface of the tension removing portion 52. In this concave portion 52c, like the concave portion of the tension removing portion of the above-described embodiment, two convex stripes are provided. Is provided,
A groove is provided between the two ridges. Recess 52c
Has a curved surface (R-falling shape). Insertion holes into which the screws 54 are inserted are provided on both sides of the back surface of the tension removing portion 52. This hole opens downward and has a bag shape. The upper case 36 can be combined with the lower case 35 by arranging the tension removing portion 52 toward any of the cord outlets 42, 43, 44 of the lower case 35. A screw insertion hole 41a into which a screw 54 is inserted is provided at both ends of the cord stopper 41, and a substantially arc-shaped (recessed R-shaped) recess 41b is provided at the center of one surface. The outer end of the recess 41b has a curved surface (R-falling shape) 4
It is 1c. A ridge 41d is provided in the recess 41b. The metal fitting 38 is for a ground electrode and has a blade portion 38a.
The terminal portion 38b is provided with a hole 55a through which the driving tack 25 is inserted, a screw hole 56a into which the terminal screw 27 is inserted, and a protrusion 57a. Metal fittings 3
9 and 40 also include blade portions 39a and 40a and a terminal portion 39.
b, 40b, holes 55b, 55c through which the driving tack 25 is inserted, screw holes 56b, 56c into which the terminal screw 27 is inserted, and protrusions 57b, 5 in the terminal portions 39b, 40b.
7c is provided.

This plug is assembled, for example, as follows. First, the blade portions 38a of the metal fittings 38, 39, 40,
39a, 40a are passed through the through holes of the lower case 35, and the blade portions 38a, 39a, 40a are projected from the bottom surface of the lower case 35. The terminal portion 38b of the metal fitting 38 is arranged in the hook 48. Next, the projections 57a, 57b, 57c of the metal fittings 38, 39, 40 are press-fitted into the press-fitting holes of the lower case 35, and the holes 3
5b into the metal member 38, 39,
40 is fixed to the lower case 35. Fast-connect terminals are fixed to the conductor tip of the extension of the cord 51, and the fast-connect terminals are connected to the terminal portions 38b, 39b, 40b with the terminal screws 27. And
The cord 51 is pulled out from any one of the cord outlets 42, 43 and 44. When the cord 51 is pulled out from the cord outlet 43, the tension removing portion 52 is directed toward the cord outlet 43, and the lower case 35 and the upper case 36 are aligned with each other.
At this time, the remaining cord outlets 42, 44 from which the cord 51 is not pulled out are closed by the convex portions 53 of the upper case being fitted. Further, the convex portion 53 is also fitted in the concave portion 45. Next, the two cases 35 and 36 are fixed with screws 58. When the cord 51 is pulled out from another cord outlet, the tension removing portion 52 is directed toward the cord outlet side,
The lower case 35 and the upper case 36 are aligned.
When the lower case 35 and the upper case 36 are put together, the protrusions 53 ... Position and prevent the upper case 36 from slipping (stopping rotation). Thereafter, the cord stopper 41 is arranged on the back side of the tension removing portion 52 so that the concave portion 41b contacts the cord 51, and the cord stopper 41 is fixed to the tension removing portion 52 with the screw 54. Then, the cord 51 is pressed and fixed by the cord stopper 41, and the tension applied to the inner portion of the body of the cord 51 is removed.

When changing the cord outlet, remove the cord stopper from the upper case, remove the upper case from the lower case, change the cord outlet, then attach the upper case to the lower case again and attach the cord stopper to the upper case.

As described above, this plug is provided with three cord outlets having different opening directions, and as shown in FIG. 7, the cord withdrawal direction can be arbitrarily selected from the three directions. Since the direction of pulling out the cord 51 can be changed, changing the cord outlet increases the possibility that the cord will be bent at an acute angle and break, or that the plug should be connected to an outlet. It is possible to reduce inconveniences such as difficulty. In addition, since the notch is provided on the side surface of the lower cover and the notch is used as the cord outlet, the cord outlet having two convex portions (ribs) is provided so as to protrude from the lower case. As compared with a case where the cord is pulled out from between the both convex portions, the body can be made smaller and the size can be easily reduced. Further, since the convex portion provided on the upper cover is fitted into the cord pull-out port through which the cord is not pulled out, there is almost no possibility that dust or the like will enter inside.

In addition, in each of the above-mentioned embodiments, the plane is substantially rectangular, but other shapes such as a round shape may be used.

〔The invention's effect〕

A plug according to the present invention includes a body composed of an upper case and a lower case, a plug blade projecting from the bottom surface of the body, and a plurality of cord outlets having different opening directions on the side surface of the body, so that the cord can be pulled out in any direction. A cord lateral plug type plug that can be changed, wherein the cord outlet comprises a notch provided on the side surface of the lower case, and the cord is fitted into a notch not pulled out on the side surface of the upper case. Since the convex portion is provided, the size can be reduced and dust and the like are less likely to enter the inside.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of a plug according to the present invention, FIG. 2 (a) is a side view of the plug, and FIG. 1 (b) is a plan view of the plug with the upper case removed. Figure, (c) of the figure is a longitudinal sectional view of the plug, (a) to (c) of Fig. 3 are explanatory views of an example of changing the pulling direction of the cord of the plug, and Fig. 4 is the top of the plug. A plan view of the case, FIG. 5 is a perspective view of the plug,
FIG. 6 is an exploded perspective view of another embodiment of the plug according to the present invention, FIG. 7 is a perspective view of the same plug, and FIG. 8 is a structural explanatory view of a conventional cord sideways type plug. 7, 35 ... Lower case, 8, 36 ... Upper case, 9, 37 ...
Body, 10a, 11a, 38a, 39a, 40a ... Plug blade part, 13-16, 42, 43, 44 ... Cord outlet,
21, 53 ... convex portion

Claims (1)

[Claims] 1. A body comprising an upper case and a lower case, a plug blade projecting from a bottom surface of the body, and a plurality of cord outlets each having a different opening direction on a side surface of the body to change a cord withdrawing direction. A cord-side-out type plug that is designed to have a cord, wherein the cord outlet comprises a notch provided on a side surface of the lower case, and a convex portion fitted on a notch on which the cord is not drawn on a side surface of the upper case. A plug that is provided with a section.