JPS6132253Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an electric rug used as a heating carpet.

This type of electric rug has a power cord led out from the rug itself, and is used by plugging the power cord into an outlet in the room. The power cord is detachably connected to the rug main body, and as shown in FIG. A notch c is formed, and connecting pins d and d are provided protruding from the inner end surface of this recess c. Then, the plug f attached to the terminal of the power cord e is inserted into the recess c as shown in Fig. 2, and the connection holes g and g of the plug f are connected to the connection pins d and d of the rug body. energization to a is achieved.

However, according to such a connection structure, the joint h between the inner circumferential edge of the recess c and the outer circumferential edge of the plug f is exposed on the upper surface side of the rug main body a, so that water etc. may be accidentally spilled on this upper surface portion. In such a case, there was a risk that it would enter the interior through the gap in the joint h and cause an unexpected short circuit. In addition, since the side of recess c is open, if the power cord e is hooked with your foot, the plug f will fall into recess c.
The problem was that it was easy to leave.

This idea was developed with this in mind, and its purpose is to prevent water from seeping in even if water is accidentally spilled, by improving the connection structure of the plug to the rug body. The purpose of the present invention is to provide an electrical rug that can securely prevent the plug from being unintentionally disconnected even if the power cord is tripped over by foot, and also improve the appearance. .

An embodiment of this invention will be described below with reference to FIGS. 3 to 8. In the figure, reference numeral 1 denotes a rug body that is used as a carpet by laying it on the floor, for example, and a heater 2 is arranged in a meandering manner inside this rug body. A cord holder 3 made of resin is attached to one corner of the periphery of the rug body 1. A recess 4 is formed near one edge of the lower surface of the cord holder 3, and a pair of connecting pins 5, 5 are vertically protruded from the inner top surface of the recess 4.
is electrically connected to the heater 2. Furthermore, a pull-out groove 6 is formed on the lower surface of the cord holder 3 so as to connect one side edge of the cord holder 3 and one side edge of the recess 4. The side surface of the tool 3 is open to the outside.

7 is a power cord, and a plug 8 is attached to this terminal. This plug 8 is formed into a rectangular plate shape corresponding to the recess 4, and a pair of connection holes 9, 9 are formed on one plate surface side. By fitting and connecting these connection holes 9, 9 with the connection pins 5, 5, a conduction circuit between the power source and the heater 2 is constructed.

A temperature controller 10 is provided in the middle of the power cord 7 to control the temperature at which the heater 2 generates heat. As shown in FIG. 6, this temperature controller 10 has an operation dial 12 rotatably provided in the center of the upper surface of a case 11 that houses a temperature control device (not shown).
The heater 2 is controlled based on the rotation operation of the operation dial 12. To explain the mounting structure of the operation dial 12, as shown in FIG. An insertion hole 15 is bored in the center of the end surface. The operation dial 12 has an interlocking shaft 16 on the bottom surface.
, each integrally has a hanging wall 17 on the periphery. This operation dial 12 is connected to the interlocking shaft 16.
is inserted into the insertion hole 15 of the bulge 14 and connected to the operating shaft 18 of the temperature control device, and the hanging wall 17 is attached to the case 11 so as to cover the outer periphery of the bulge 14 .

According to such a mounting structure, if water or the like is accidentally spilled on the upper surface of the case 11, the water is blocked by the rising wall 13 of the bulge 14 and the water is spilled onto the upper surface of the case 11.
There is an advantage that the temperature control device inside the case 11 can be reliably prevented from being electrically short-circuited.

As shown in FIG. 8, the rug main body 1 is made of a needle-punched outer material 19, a urethane foam cushioning material 20, and a needle felt lining 21, which are laminated with the heater 2 in between. The height reaches approximately 15 mm, and therefore, when this rug main body 1 is laid on the floor, a large step is formed between the floor surface and the periphery of the rug main body 1, and this step can cause pedestrians to trip. There is a fear that it will be put away.

Therefore, in this embodiment, as shown in FIG. 8, the outer material 19, the cushioning material 20, and the lining material 21 are laminated so that their peripheral edges overlap in a stepped manner, and an inclined surface 22 is attached to the peripheral edge of the lamination. An edge frame 23 having a shape is fitted, and the inclined surface 22 of this edge frame
This prevents tripping. Generally, the edges of carpets are sewn with decorative threads, but the decorative threads often come undone over a long period of time. However, in this embodiment, as mentioned above, since the edge frame 23 is fitted around the periphery of the rug body 1,
There is an advantage that the decorative thread does not come undone, and there is no need to provide such a decorative thread. The edge frame 23 is preferably fixed to the periphery of the rug main body 1 by applying an adhesive to its inner circumference, and is preferably made of soft synthetic resin.

Next, a procedure for attaching the power cord 7 to the rug body 1 will be explained. First, cord receiver 3
from the floor, then insert the plug 8 of the power cord 7 into the recess 4 and store it, and connect the connection holes 9, 9 of this plug 8 with the connection pins 5, 9 of the cord holder 3.
5 and fit together. Then, the power cord 7 is pulled out through the pull-out groove 6 to the outer side of the cord holder 3. This completes the attachment of the power cord 7 to the rug main body 1, and it becomes possible to supply electricity to the heater 2.

According to such a configuration, even if water or the like is accidentally spilled on the top surface of the rug body 1, the plug 8
Since the plug 8 is housed in the recess 4 provided on the underside of the rug main body 1, water will not penetrate around the plug 8.
Electrical short circuits can be reliably prevented.
Furthermore, the plug 8 housed in the recess 4 is completely restrained by the inner circumferential wall of the recess 4, so even if the power cord 7 is hooked by foot,
The plug 8 will not be accidentally removed from the recess 4. Furthermore, the plug 8 is housed in the recess 4 on the lower surface side of the rug main body 1 and is not exposed to the outside, which has the advantage that the appearance of the rug main body 1 is improved.

This invention can be applied not only to carpets used in living rooms, but also to so-called heat-retaining mats used in kitchens.

As explained above, according to this invention, a recess for plugging in a plug is formed on the lower surface of the periphery of the rug main body, and a pull-out groove is formed to communicate and open this recess with the peripheral surface of the rug main body, and a power source is provided in the recess. The cord plug is removably inserted and stored, and the power cord is pulled out through the above-mentioned pull-out groove, so even if water is spilled on the top of the rug body, electrical short circuits at the plug insertion part are prevented. Moreover, even if the power cord is hooked on by one's foot, the plug can be prevented from being accidentally disconnected, and furthermore, the appearance of the rug itself can be improved.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views showing part of a conventional electric carpet, Figure 3 is a perspective view of an electric carpet according to an embodiment of this invention, and Figure 4 is a view of the main parts from diagonally above. FIG. 5 is a perspective view similarly seen diagonally from below, FIG. 6 is a perspective view showing a temperature controller provided in the power cord of the same embodiment, and FIG. 7 is a sectional view showing a part of the controller. , FIG. 8 is a sectional view taken along the line -- in FIG. 4. 1... rug body, 4... recess, 6... drawer groove, 7... power cord.

Claims (1)

[Scope of utility model registration request] A recess for plug insertion is formed on the lower surface of the periphery of the rug body, and a pull-out groove is formed to communicate and open this recess to the peripheral side of the rug body, and a power cord plug is removably inserted into the recess for storage. ,
An electric rug with a power cord drawn out through the above-mentioned lead-out groove.