JPS6068571A - Power source cord connection unit of electric device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to electrical equipment with a detachable power cord;
In particular, it relates to power cord connections for hand-held electrical equipment such as hair dryers.

[Background technology 1] For portable electrical devices such as hair dryers, it is convenient to carry and store the power supply hood if it is detachable, and it is also possible to store the power supply coat separately. Therefore, there is no need to apply excessive force to the connection between the power supply coat and the electrical equipment, which has the advantage of reducing the possibility of wire breakage.However, when handling the equipment, the power supply coat (Due to its own weight, it may fall off the device and become difficult to use.) Therefore, it may be necessary to install a locking device 6 as shown in Figure 1 at the power supply 1 connection, depending on the device. However, the structure of the conventional locking device is such that a locking groove 15 is formed on the side surface of the plug 10 of the power foot 2 that is inserted into the recess 12 of the device in which the connection terminal 13 is arranged and connected to the connection terminal 13. This locking Jf port 1715 is provided to lock the locking piece 14 which is biased by the spring 17, and the locking direction is approximately 90' with respect to the insertion direction of the plug 10. Therefore, when the plug 10 is pulled strongly, the lock piece 14 will close to the plug 10.
There was a problem in that the plug 10 slipped in the direction of releasing the engagement with the plug 10 and came out.

[Objective of the Invention 1 The present invention has been made in view of the above points, and its purpose is to provide a power supply hood connection part for electrical equipment that prevents the power supply hood from being removed or dropped. .

[Disclosure of the Invention 1] However, the present invention provides a locking groove on the side surface of a plug of a power cord that is inserted into a recess in which a connecting terminal is disposed and connected to the connecting terminal, and is made by being biased by a spring into the recess. It is characterized in that it is provided with a locking piece that extends and locks in the locking groove, and that the angle between the locking direction of the locking piece in the locking groove and the direction in which the plug is inserted is an acute angle,
The force in the direction of pulling out the plug acts to deepen the engagement between the lock piece and the engagement groove of the plug.

The present invention will be described in detail below based on the illustrated embodiment. A flat housing 1 has a discharge port 6 at the front end and suction ports (not shown) on both rear side surfaces. It is equipped with a main handle 4 that protrudes from the front end, and an auxiliary handle 5 that protrudes downward from the lower surface of the front end, and a sirocco-type 77-inch 19 that is rotationally driven by a motor 18 and a motor IS is disposed in the rear part. A heater block 11 is arranged in the front part.

At the upper front of the main handle 4, whose front lower end is continuous with the lower end of the auxiliary handle 5 to form a loop-shaped handle as a whole, there is a main switch that controls opening and closing of the power supply and turning on and off the heater 70 and the heater 70. A switch handle 22 for operation of the shutter/turf 21 is disposed on the upper rear surface of the auxiliary handle 5 between the discharge port 6 and the heater block 11, and is used for opening/closing the shaft/turf that changes the opening area of the discharge port 6. A switch handle 26 for operating a switch 25 for switching between the wattage and air volume of the heater block 11 is disposed between the handle 24 and the two parts. As shown in FIG. 10, the shirt and turf have a holding frame 30, a pair of rotary plates 31 with shafts 32 rotatably disposed in grooves on both sides of the back of the holding frame 30, and a rotating plate 31 on the back of the holding frame 30. It is composed of a support plate 33 attached by a pin 35 protruding from the back thereof, and a fill spring 34 connecting the shafts 32 of each rotary plate 31, and a tapping screw 40 as shown in FIG. This blocked shutter 7, in which the holding frame 30 is fixedly disposed between the discharge port 6 and the heater block 11, is configured such that both rotary plates 31 are opened and closed by the handles 2 and 1, and the fil L of the discharge port 6 is closed. ', 1 area is changed. That is, the handle 24, which moves up and down inside the auxiliary phase F5, has a pair of inclined holes 41 whose upper ends (left and right) are close to each other and whose lower ends are separated, and the rotary plate 31 is inserted into each of these inclined holes 41. The horizontal part of the lower end of each shaft 32 is inserted, and when the handle 24 is in the raised position, both rotary plates 31 are opened as shown in FIG. 12, and when the handle 24 is in the lowered state, as shown in FIG. As shown, the horizontal portion of the shaft 32 moves above the inclined hole 41 and rotates, so that both rotary plates 31 are closed. At this time, since the thin protrusion 42 on the handle 24 pushes down the center part of the coil spring 34, the rotating plate 31 is moved by wind pressure due to the gap existing between the inclined hole 41 and the horizontal part of the shaft 32. Shaking is prevented.

The inner side wall of the inclined hole 41 is formed into an inclined surface as shown in FIG. 11, so that the shaft 32 can rotate smoothly. The protrusions 45 provided on both sides of the lower part of the handle 24 are for providing a click with respect to the vertical movement of the handle 24 between the inner surface of the auxiliary handle 5, and the vertical holes 46 on both sides of the lower part are provided with springs at the protrusions 45. It is an escape hole for giving sex. Furthermore, this shutter 7
The support plate 33 is made of sheet metal and also serves as a reinforcing member for the front end of the housing 1. In the figure, 27 is a partition piece that is formed integrally with the housing 1 and partitions the inside of the housing 1, and 28 is a hanging metal fitting.

A recess 12 is formed in the lower end surface of the main handle 4, and a connecting terminal 13 is arranged within this recess 12. Monsho 12
The cylindrical holder 8 with a bottom has an insertion hole 51 for the connection terminal 13 on its upper surface, as shown in FIGS. 6 to 9.
It has a groove 52 for arranging the terminal plate 50 to which the upper end of the connection terminal 13 is caulked and fixed, and also has a monthly rib 53 protruding from the upper center of the groove 52 and a rib 54 protruding from the end of the jt452. The terminal plate 50 is sandwiched between the bottom surface of the groove 52 and the ribs 53 and 54 so as to be fixed to the holder 8. This is because even if the connecting terminal 13 does not have a flange that contacts the bottom of the recess 12, the holding parts 4 and 4 are separately provided to prevent the terminal board 50 from lifting up. This can be done using only the shape of the holder 8 without the need for.

Incidentally, the void space 55 shown in FIG. 9 is created due to the molding of the ribs 53 and 54 -1,-, but this space is useful for heat dissipation of the terminal board 50. Also, the inner surface of the holder 8 -
1 part, that is, the protrusion 56 provided on the bottom of the recess 12, is connected to the plug 10 of the electric hood that is inserted into the recess 12 and connected to the connection terminal 13, and the bottom of the recess 12. The connection terminal 13 is arranged at the lower end of the main handle 1 as shown above to keep a gap open for heat dissipation.
is connected to the power cord by inserting the plug 10 of the power hood into the gate +sui+2, but at this time, the opening 7 piece 14 that locks into the locking groove 15 formed on the side of the plug 10 is inserted. 1j on the equipment side.

It is provided at a connecting portion connecting the lower end of the handle 4 and the lower end of the auxiliary handle 5. This lock piece 14, which is located on the top surface of the operation button portion or the connecting portion, is formed in the same direction as the main handle 4 that protrudes diagonally forward through the recess 12, whereas it is formed horizontally along the lower surface of the connecting portion. One slide is provided so that it can be slid freely.
), as shown in FIG. 5, one end is biased so as to protrude into the recess 12 by a plate spring 17 embedded and fixed therein. Also, the locking groove 15 in the plug 10 is formed to open in that direction or diagonally rearward of the plug 10, so that it engages with the lock piece 14 in the direction in which the plug 10 is inserted into the recess 12. The locking direction with the stop groove 15 is made to form an acute angle as shown in FIG.

Therefore, insert the plug 10 into the recess 12 and connect the connecting end r1.
When connected to plug 10, the leaf spring 17 forces the plug 10
The lock piece 14 that is locked in the locking groove 15 functions as a so-called wedge, and when a pulling force is applied to the plug 10, the force is pushed in the direction of deepening the locking between the lock piece 14 and the locking groove 15. This prevents the lock piece 14 from escaping and causing the plug 10 to fall when removed. The arrangement d of the recess 12 and the lock piece 14 is as follows:
A recess 12 is provided in the main handle 4 protruding obliquely forward from the bottom surface of the housing song 1 in the same direction as the main handle 1, and a lock piece 14 is provided between the handle 1 and the auxiliary handle 5. By providing it at the connecting part, the insertion direction of the plug 10 and the locking direction of the lock piece 14 can be set at an acute angle, even though they are both in a natural arrangement. That's why there is. plug 10
When removing the lock, the lock piece 14 is moved backward and removed from the locking groove 15 by moving the operation button 4 with a finger, as in the conventional case.

[Effects of the Invention 1 and 2] In the present invention, the force of pulling the plug out of the recess is absorbed by the locking piece that engages with the lock 1ffi of the plug and prevents the plug from falling when pulled out. Since this acts to further deepen the engagement with the engagement groove, removing the plug depends on reliably preventing it from falling off.

[Brief explanation of drawings]

Figures 1 and 2 are a sectional view and a front view of the main parts of the conventional example,
Fig. 53 is a sectional view of one embodiment of the present invention, Fig. f51i is an enlarged front view of the main part of the same, Fig.
The figure is a perspective view of the Porgoo constituting the recess of the above, Figure 7 is a bottom view of the holder of the same above, Figure 8 is a perspective view of the second holder of the same with the terminal plate attached, and Figure 9 is the same as the above. A A
Fig. 10 is an exploded perspective view of the shunter and handle of the above, Fig. 11 is a sectional view taken along the line B-B of the same
Figures 2 and 13 are explanatory diagrams of the operation of the same shutter, in which 2 is a power cord, 4 is a main handle, 5 is an auxiliary grip, 10 is a plug, 12 is a recess, and 14 is a lock piece. , 15
indicates a locking groove. Agent Patent Attorney Ishi 1) Chief 7 Figure 1 Figure 2 0 Figure 4 10 Figure 5 Figure 7

Claims (2)

[Claims] (1) Insert the plug into the recess where the connection terminal is located.H is the plug side of the power cord that will be connected to the connection terminal! A locking groove is provided in the recess, and a locking piece is provided that protrudes into the recess to lock the two legs in the locking groove. A power cord connection portion for electrical equipment characterized by forming an acute angle with respect to the direction in which a plug is inserted. (2) The recess is (Jt) provided in the main handle that projects diagonally in the 1iij direction, and the lock piece is 1'1.
1, characterized in that it is provided at a connecting part that connects an auxiliary handle and a main handle that protrude from the container so that both handles form a loop; Equipment power cord connection.