JPH0665086B2 - plug - Google Patents

Description

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

[Background Art] As a plug, there is a horizontal cord type (horizontal cap) 1 as shown in FIG. As shown in the figure, the plug 1 includes an upper case 2a and a lower case 2
It has a body 2 made of b. The blades 3a, 3b project from the bottom surface of the lower case 2b,
A cord 4 electrically connected to b 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. 6 in the figure
Is 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
The plug blades 3a and 3b are connected to the outlet 6 so that they 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. 9, when the plug 1 is connected to the outlet 6, the outlet outlet is directed downward and the cord withdrawal direction is limited to downward. 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.

In this horizontal plug, it is desired that the tension applied to the inner portion of the cord body can be reliably removed regardless of the thickness of the cord.

[Object of the Invention]

The present invention has been made in view of the above circumstances, and relates to a cord horizontal plug type plug that allows the cord to be pulled out in a plurality of directions, regardless of the thickness of the cord. The purpose is to provide a plug that can reliably remove tension.

[Disclosure of Invention]

The inventors have conducted extensive research in order to achieve the above-mentioned object. As a result, it is sufficient to fix the cord by sandwiching it with the body by using a cord stopper that has a recess on one side for a thick cord and a convex part on the other side for a thin cord. The present invention has been completed here.

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. The cord is a horizontal cord type plug, and a cord stopper is provided on the side of the body to clamp and fix the cord with the body, and one side of this cord stopper is thick. A gist of the plug is that a concave portion for fixing the cord is provided and a convex portion for fixing the thin cord is provided on the other surface.

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. At both ends in the length direction of the cord stopper 12,
A screw insertion hole 12a into which the screw 24 is inserted is provided, 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 is a curved surface (R-falling shape) 12c. The recess 12b is provided with a ridge 12d. A convex portion 12e is provided at the center of the other surface of the cord stopper 12, and the upper surface of the convex portion 12e is a concave curved surface (concave R shape) 12f. One end of the convex portion 12e is a slope 12g. The curved surface 23 of the tension removing portion 20, the curved surface 12c and the slope 12g of the cord stopper 12 are provided for the purpose of removing the tension of the cord and improving the flexibility of the cord. It need not be provided. In the concave curved surface 12f,
A ridge 12h is provided. Protrusions 12i and 12j are provided at both ends of the cord stopper 12 in the width direction. The entrance and exit of the insertion hole 12a are located at the bottoms of the recesses 12k and 12m, and the heads of the screws 24 inserted into the insertion hole 12a enter the recesses 12k and 12m and cannot be seen from the outside. However, this does not necessarily have to be the case. The metal fitting 10 includes a blade 10a and a terminal portion 10b,
The terminal portion 10b has a hole 26 through which the driving tack 25 is inserted.
a, a screw hole 28a into which the terminal screw 27 is inserted, and a protrusion 34a are provided. The metal fitting 11 also includes the blade 11a and the terminal portion 11b, and the terminal portion 11b has a driving tack 25.
There is provided a hole 26b through which the screw is inserted, a screw hole 28b into which the terminal screw 27 is inserted, and a protrusion 34b.

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 lower case 7
The blade portions 10a and 11a are projected from the bottom surface of the. 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 fastener 26 is driven into the holes 26a and 26b and the holes 7b and 7b.
11 is fixed to the lower case 7. Extension 29 of code 29
The quick-connect terminals 30 are fixed to the conductor tips of a and 29b, and each quick-connect terminal 30 is connected to the terminal portions 10b and 11b by the terminal screw 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 it is 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 (c) of 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 lower case 7 and the upper case 8 are aligned so that the tension removing portion 20 faces the cord outlet side.
When the lower case 7 and the upper case 8 are combined, the upper case 8
The positioning of the
Made by. After that, in the case of a thick line like the cord 29, the recess 12b is applied to the cord 29,
The cord stopper 12 is arranged on the back side of the tension removing portion 20, the screw 24 is passed through the hole 12a, and further screwed into the hole 33 to fix the cord stopper 12 to the tension removing portion 20. When the cord is a thin wire, the cord stopper 12 is arranged on the back side of the tension removing portion 20 so that the convex portion 12e on the opposite side is brought into contact with the cord, and the cord stopper 12 is fixed to the tension removing portion 20. Then, the cord is pressed and fixed by the cord stopper 12, and the tension applied to the inside portion of the body 9 of the cord is removed. When fixing the cord stopper 12, the convex portion 1 of the cord stopper 12
Both ends of 2i and 12j are the protrusions 20 of the tension removing unit 20.
It is applied to the inner surfaces of a and 20b to position the cord stopper 12 or to prevent it from rotating. However, this does not necessarily have to be the case. Further, when the cord is fixed, the ridges 32, 12d, 12h bite into the cord, so that the tension can be reliably removed. Further, the tension removing portion 20 has a substantially arc shape (concave R shape).
Since the concave portion 20c is provided and the groove 22 is provided, the pressing by the cord stopper 12 is improved, and this also ensures the tension removal. However, it is not always necessary to provide the ridge 32, the arc-shaped recess 20c, the groove 22 and the ridges 12d and 12h 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. 6, the cord withdrawal direction can be arbitrarily selected from the 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. Moreover, the cord 12 is provided between the upper case 8 and the upper case 8 by the cord stopper 12 having the concave portion 12b for the thick cord on one surface and the convex portion 12e for the thin cord on the other surface. Therefore, the tension applied to the inner part of the cord can be removed regardless of the thickness of the cord. In addition, when fixing the cord with only one side of the cord stopper, the distance between the cord stopper and the upper case changes greatly depending on the thickness of the cord, so use a long screw for fixing the cord stopper. Therefore, the thickness of the body must be increased to eliminate the protrusion of the screw. On the other hand, since this plug uses the double-sided cord stopper as described above, the screw used for fixing the cord stopper may be short, and the body can be made thin to reduce the size of the plug. (Thinning) can be achieved.

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.

7 and 8 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 cord stopper 12 are provided 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. Recesses (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. The cord stopper 12 has the same structure as the cord stopper of the above-described embodiment (see (a) to (c) of FIG. 4). Therefore, the numbers common to the cord stoppers of the above-mentioned embodiment indicate the same numbers. The metal fitting 38 is for a ground electrode and includes a blade portion 38a and a terminal portion 38b.
In b, 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 are provided. The metal fittings 39 and 40 also include the blade portions 39a, 4
0a and terminal portions 39b and 40b, and terminal portions 39b and 4
0b has holes 55b, 55 through which the driving tack 25 is inserted.
c, screw holes 56b and 56c into which the terminal screw 27 is inserted, and projections 57b and 57c are 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 installed in the hem 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). After this, as in the previous embodiment,
In the case of a thick line like the cord 51, the cord stopper 12 is arranged on the back side of the tension removing portion 52 so that the recess 12b is brought into contact with the cord 51, and the cord stopper 12 is fixed to the tension removing portion 52 with the screw 54. When the cord is a thin wire, the cord stopper 12 is arranged on the back side of the tension removing portion 52 so that the convex portion 12e on the opposite side is brought into contact with the cord.
Is fixed to the tension removing section 52. Then code 51
Is clamped and fixed by the cord stopper 12, and the cord 51
The tension applied to the inner portion of the body 37 of 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. 8, 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 to cause disconnection, or that the plug should be connected to an outlet. It is possible to reduce inconveniences such as difficulty. Moreover, similar to the above-mentioned embodiment, the cord 12 is provided between the upper case 8 and the upper case 8 by the cord stopper 12 having the concave portion 12b for the thick cord on one surface and the convex portion 12e for the thin cord on the other surface. Since it is fixed with, regardless of the thickness of the cord,
The tension applied to the inner part of the cord can be removed. In addition, the screw used for fixing the cord stopper may be short, and the thickness of the body can be reduced to reduce the size (thinner) of the plug.

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. It is a plug with a cord that can be changed, a cord stopper is provided on the side of the body to clamp and fix the cord with the body, and one side of this cord stopper is thick A recess for fixing the cord is provided, and on the other side,
A convex portion for fixing the thin cord is provided. Therefore, the tension applied to the inner portion of the cord can be removed regardless of the thickness of the cord.

[Brief description of drawings]

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. 2 (b) is a plan view of the plug with the upper case removed. The figure, (c) of the figure is a longitudinal sectional view of the same plug, (a) to (c) of FIG. 3 are explanatory views of an example of changing the pulling direction of the cord of the same plug, and (a) of FIG. 4 is A plan view of the cord stopper of the same plug, (b) of the same figure is a partially cutaway side view of the same cord stopper, (c) of the same figure is a rear view of the same cord stopper, and FIG. Plan view of the upper case,
FIG. 6 is a perspective view of the plug, FIG. 7 is an exploded perspective view of another embodiment of the plug according to the present invention, FIG. 8 is a perspective view of the plug, and FIG. It is a structure explanatory view of a 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,
12 ... Cord stopper, 12b ... Recessed portion, 12e ... 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 so that a cord can be pulled out in a different direction. The cord is a horizontal plug type plug, and the side of the body is provided with a cord stopper that clamps the cord between the body and the body. The plug is characterized in that it is provided with a concave portion that is provided with a convex portion that fixes a thin cord on the other surface.