KR20140003047A

KR20140003047A - Safety reinforcement structure of a cooking device

Info

Publication number: KR20140003047A
Application number: KR1020120070484A
Authority: KR
Inventors: 채수백
Original assignee: 린나이코리아 주식회사
Priority date: 2012-06-29
Filing date: 2012-06-29
Publication date: 2014-01-09

Abstract

Disclosed is a structure for strengthening the safety of a cooking device. The cooking device includes a temperature sensor which senses the temperature of a cooking vessel seated on a cooking stand and a pipe member where an electric wire connected to the lower part of the temperature sensor is penetrated through. The structure for strengthening the safety of a cooking device includes a ring-shaped protrusion unit which is protruding from the outer circumference of the pipe member along the boundary of the pipe to the outer side of a radial direction; a main bracket including a groove unit which includes a joining hole where a part of the ring-shaped protrusion unit is fitted and partially covers the pipe member, a first cut-off loop formed on the upper part, and a joining unit formed on the periphery portion; and an auxiliary bracket which is joined to the main bracket and which includes a corresponding joining hole where the remaining portion of the ring-shaped protrusion unit is fitted and a second cut-off loop which is overlapped with the adjoining portion of the first cut-off loop. The main bracket includes a base unit including an opening; an upper wall unit which is formed on one side of the base unit to be integrated and inclined and joined to the auxiliary bracket and which includes the groove unit and the first cut-off loop; and a wire guide unit which is formed on the other side of the base unit to face the upper wall unit and of which the upper part is partially and vertically open to insert or separates the electric wire of the temperature sensor.

Description

SAFETY REINFORCEMENT STRUCTURE OF A COOKING DEVICE}

The present invention relates to a safety structure of the cooking apparatus, and more particularly, to prevent foreign substances, such as broth, from entering the wires (or wires) of the temperature sensor for detecting the temperature of the cooking vessel, such as a pan, to cause a failure. It relates to a safety enhancing structure of a cooking apparatus.

In general, a cooking apparatus such as a gas range is capable of cooking food by burning LPG, LNG, or butane, etc., and is used as a kitchen appliance installed indoors or as a simple cooking utensil in outdoor camping.

1 is a schematic longitudinal cross-sectional view showing the structure of a gas range according to the prior art.

As shown in FIG. 1, the gas range 1 according to the related art has a main body 2, a burner 3 installed in the main body 2 to generate a flame, and ignition or extinguish gas. The knob 4 and the safety unit 5 which can be ignited only by holding the knob 4 for a predetermined time to prevent the leakage of gas are provided.

The safety unit 5 is connected to the thermocouple 6 through a thermocouple 6 for sensing the heat caused by the flame generated from the burner 3 and applying a current flow, and a wire 7. The solenoid valve 8 which selectively opens and closes the gas path supplied from the gas container (not shown) to the burner 3 is comprised.

The safety unit 5 is a closed circuit by the thermocouple 6 when the thermocouple 6 detects heat to open the gas passage by the on action of the solenoid valve 8 and accordingly of the igniter (not shown) The spark action makes it possible to ignite the gas emitted from the burner 3.

In addition, the gas range 1 includes a temperature sensor 11 elastically contacting the bottom of the cooking vessel in order to detect the temperature of the cooking vessel 10 placed on the cooking pedestal 9 of the gas range. It is provided in the form provided with the detection unit 12 further. Therefore, the temperature detection unit 12 detects the temperature of the cooking vessel 10 placed on the cooking pedestal 9 of the gas range in advance so as to perform a function or a role of preventing overheating of the cooking vessel 10. do.

The temperature detection unit 12 inadvertently cuts the current flow when the temperature sensor 11 detects an excess of a predetermined temperature, the cooking vessel 10 is inadvertently heated for too long to burn food in the cooking vessel or reduce the soup Prevent fire from happening in advance. In addition, the temperature detection unit 12 may control not only the above functions but also corresponding cooking materials according to the temperature, and furthermore, an automatic cooking function.

In addition, in the temperature detection unit 12, the temperature sensor 11 is formed in the form of an elongated rod or tube and inserted in a state in which the coil spring 14 is interposed in the tubular member 13 fixed to the main body 2. Along the longitudinal direction of the tubular member 13 is provided to be elastically lifted within a predetermined section.

However, the gas range 1 according to the related art has a structure in which the electric wire 7 escaping from the outside of the temperature sensor 11 is largely exposed, and foreign matter such as broth has a clearance between the electric wire 7 and the temperature sensor 11. It is provided in the form of no structure to block the inflow to the.

Therefore, in the gas range 1 according to the related art, when the temperature sensor 11 is pressed by the cooking vessel 10, foreign substances such as broth generated in the cooking vessel 10 or its surroundings, etc. It easily flows into the tubular member 13 through a gap between the outer circumferential surface of the tubular member 13 and the tubular member 13 to contaminate the wire 7 located below the temperature sensor 11, and the temperature sensor There is a problem that the broth also enters between the wires 11 and 7 and causes a failure. Due to the contamination, seizure, etc. of the wire 7 as described above, the temperature sensor 11 is unable to perform the heat sensing function, which also prevents the safety cut off and may cause a problem that disables cooking control. .

In addition, in the gas range 1 according to the related art, the temperature sensor 11 and the solenoid valve 8 and / or the wire 7 connecting the temperature sensor 11 and the thermocouple 6 are largely exposed. The foreign matter is splashed from the lower part of the gas range 1 toward the electric wire 7 side of the connecting portion, or an external force is inadvertently applied during the assembly, installation, or maintenance of the gas range 1. (7) is very likely to break.

Accordingly, the present invention has been made to solve the problems described above, an object of the present invention is to block the inflow of foreign matter, such as broth to the wire (or wire) of the temperature sensor for detecting the temperature of the cooking vessel, such as a pot. By providing a safety structure of the cooking apparatus that can ensure the smooth operation of the temperature sensor.

Another object of the present invention is to prevent foreign substances, such as broth, from flowing into the wire of the temperature sensor for detecting the temperature of the cooking vessel, such as a pot, and to enhance the safety of the cooking apparatus having a structurally stable and compact structure. To provide a structure.

In order to achieve the above object, the present invention is a temperature sensor for detecting the temperature of the cooking vessel placed on the cooking pedestal, and the temperature sensor is fixed to the main body so as to be able to elevate elastically along the length can slide the temperature sensor In the cooking apparatus comprising a tubular member which is supported so as to pass the wire connected to the lower part of the temperature sensor along the inside so that the temperature sensor constitutes a circuit with the solenoid valve and the thermocouple,

A ring-shaped protrusion provided on the outer circumferential surface of the tubular member to protrude radially outward along an edge;

A main bracket having a coupling hole into which a portion of the ring-shaped protrusion is fitted and including a groove portion surrounding a portion of the tubular member, a first blocking loop provided at an upper end portion, and a coupling portion provided at a peripheral portion thereof; And

As a coupling with the main bracket, a corresponding coupling hole for fitting the remaining portion of the ring-shaped protrusion is formed and a corresponding groove portion surrounding the remaining portion of the tubular member, and provided at an upper end and overlapping with an adjacent portion of the first blocking loop. And an auxiliary bracket including a second blocking loop.

The main bracket includes a base part including an opening, an inclined body integrally with one side of the base part, the groove part and the first blocking loop, and an upper wall part coupled to the auxiliary bracket, and to face the upper wall part. It is provided integrally on the other side of the base portion and provides a safety reinforcement structure of the cooking apparatus which is composed of a wire guide portion having a guide channel vertically open to a portion of the upper portion to insert or separate the wire of the temperature sensor.

Further, in one embodiment, each of the first blocking loop and the second blocking loop is characterized in that the upper plate and the downward inclined portion provided on the outer edge of the upper plate.

In addition, in one embodiment, the auxiliary bracket is provided at the lower end of the corresponding groove portion and positioned higher than the lower end of the groove portion of the main bracket, characterized in that it further comprises a cover portion to block the inflow of foreign matter to the corresponding groove portion side. .

In one embodiment, the coupling portion of the main bracket is characterized in that it comprises at least two first arm fixing portion which is fixed to the fixing structure of the burner via a fastener.

Further, in one embodiment, the cover portion of the auxiliary bracket is provided in the lower end of the corresponding groove portion and the curvature radius larger than the corresponding groove portion, and the flat portion formed to be inclined with respect to the arc portion on the lower edge of the arc portion; And a downward inclined portion formed to be inclined downwardly at both side portions of the flat plate portion, and an upward inclined portion formed to be inclined upwardly at the front side portion of the flat plate portion.

In addition, in one embodiment, the upper surface of the base portion is characterized in that it has a spacing protrusion disposed to be inclined in the direction of the orientation of the wire so that the electric wire from the base portion to a certain height.

The present invention is to mount the main bracket having a first blocking loop and the auxiliary bracket having a second blocking loop in the form of mutually coupled to the tubular member via the ring-shaped protrusion of the tubular member, the first and second blocking loops. By preventing foreign matters such as broth from flowing into the wires (or wires) of the temperature sensor, for example, the contact portion exposed to the outside, it is possible to prevent the seizure to ensure the smooth operation of the temperature sensor.

In another aspect, the present invention provides a wire guide having a guide channel in which a portion of the upper portion is vertically open in the base portion of the main bracket, so that wires oriented outward from the lower end of the tubular member from the bottom surface of the base portion through the wire guide. Allows you to guide safely at a certain height.

In another aspect, the present invention provides a floating protrusion that can float the wire to a certain height on the upper surface of the base portion of the main bracket to prevent the foreign matter accumulated or accumulated on the bottom surface side of the base portion to contaminate the wire. In addition, the present invention has a structurally stable and compact structure so that it is possible to effectively mount the assembly of the main bracket and the auxiliary bracket in a narrow space in the burner of the cooking apparatus such as a gas range.

1 is a schematic longitudinal sectional view showing the structure of a gas range according to the prior art;
Figure 2 is a schematic perspective view showing a safety enhancement structure of the cooking apparatus according to the present invention.
Figure 3 is a schematic exploded perspective view showing a state viewed from one side of the enhanced safety structure of the cooking apparatus according to the present invention.
Figure 4 is a schematic exploded perspective view showing a state seen from the other side of the safety enhancement structure of the cooking apparatus according to the present invention.
5 is a schematic side view of a safety enhancement structure of the cooking apparatus according to the present invention.
Figure 6 is a schematic rear perspective view showing a state in which the safety enhancement structure of the cooking apparatus according to the present invention is applied to the burner.

Hereinafter, the safety reinforcing structure of the cooking apparatus according to the present invention will be described with reference to FIGS. 2 to 6. In the description of this embodiment, the same reference numerals are used for the same components as those in the prior art for the sake of understanding.

Safety enhancing structure of the cooking apparatus according to the present invention is a temperature sensor for detecting the temperature of the cooking vessel placed on the cooking pedestal, and the temperature sensor is fixed to the main body so as to be elevated in a state receiving the elastic force of the coil spring along the length The temperature sensor is slidably supported, and the temperature sensor is applied to a cooking apparatus including a tubular member through which an electric wire connected to a lower part of the temperature sensor passes along an inside to form a circuit with a solenoid valve and a thermocouple.

As shown in Figure 2 to 5, the safety structure of the cooking apparatus according to the present invention is a ring-shaped projection (13a), the main bracket 20 and the auxiliary bracket (31) of the tubular member 13 in the cooking apparatus as described above. It is provided in the form including). The ring-shaped protrusion 13a is provided to protrude radially outward along an edge on the outer circumferential surface of the tubular member 13.

The main bracket 20 is provided in the form of a groove portion 21, the first blocking loop 22 and the coupling portion 23. The groove 21 includes a coupling hole 21a into which a portion of the ring-shaped protrusion 13a is fitted, and is provided in a form surrounding a portion of the tubular member 13. The first blocking loop 22 is provided at the upper end of the main bracket 20, and the coupling part 23 is provided at the periphery of the main bracket 20.

The auxiliary bracket 31 is coupled to the main bracket 20 and includes a corresponding groove 32 and a second blocking loop 33. The corresponding groove 32 is provided in a form in which a corresponding coupling hole 32a into which the remaining portion of the ring-shaped protrusion 13a is fitted is formed and surrounds the remaining portion of the tubular member 13. The second blocking loop 33 is provided in the upper end portion of the auxiliary bracket 31 and provided in a form overlapping with an adjacent portion of the first blocking loop 22. Accordingly, the first and second blocking loops 22 and 33 may function as a roof to block foreign matter from flowing into the upper end of the main bracket 20 and the auxiliary bracket 31 from the outside.

The overlapping structure of adjacent portions of the first blocking loop 22 and the second blocking loop 33 refers to a structure in which one of the two covers the other, and FIG. 2 shows an example of the two. Therefore, the main bracket 20 and the auxiliary bracket 31 are stably supported by the ring-shaped protrusion 13a of the tubular member 13 with respect to the tubular member 13 in a state where they are coupled to each other.

In addition, the main bracket 20 may be provided in a form including a base portion 25 having an opening 25a, an upper wall portion 26, and an electric wire guide portion 27. The opening 25a of the base portion 25 of the main bracket 20 can smoothly supply the surrounding air to the combustion part side of the burner, thereby contributing to reducing the amount of harmful gas such as carbon monoxide (CO) and improving the combustibility. do. In addition, the opening 25a of the base portion 25 of the main bracket 20 helps smooth discharge of foreign matter. The upper wall portion 26 is integrally inclined at one side of the base portion 25, includes the groove portion 21 and the first blocking loop 22, and is coupled to the auxiliary bracket 31. The wire guide part 27 is integrally provided at the other side of the base part 25 so as to face the upper wall part 26, and the upper part of the wire guide part 27 may insert or separate the wire 7 of the temperature sensor 11. A part has the guide channel 27a which is open vertically.

Safety reinforcing structure of the cooking apparatus according to the present invention as described above is the foreign matter flowing in the lower portion of the cooking vessel or the cooking vessel below the temperature sensor 11 of the main bracket 20 and the auxiliary bracket 31 of the The first and second blocking loops 22 and 33 may be effectively blocked. In addition, the safety reinforcing structure of the cooking apparatus according to the present invention has a wire guide portion 27 having a guide channel 27a in which a portion of the upper portion is opened vertically on the other side of the base portion 25 so as to face the upper wall portion 26. Is provided to contaminate the electric wire 7 of the temperature sensor 11 from the lower end side of the tubular member 13 to the outside through the electric wire guide part 27 from foreign substances on the bottom of the base part 25. You can guide without.

In addition, the safety reinforcing structure of the cooking apparatus according to the present invention allows the foreign material to be more effectively blocked through the main bracket 20 and the auxiliary bracket 31 to the wire 7 side of the temperature sensor 11, It is possible to safely protect the electric wire 7 from an impact that may be inadvertently applied from the outside during the assembly, installation, or maintenance of the cooking apparatus.

On the other hand, in the cooking apparatus, the solenoid valve (not shown) and the thermocouple (not shown) may be provided at different positions on one side of the burner (not shown) together or disposed at positions facing each other. In this arrangement structure, the wires 7 connected to the lower part of the temperature sensor 11 form a closed or open circuit with the solenoid valve and the thermocouple and are oriented in a form extending downwardly at least in a vertical section.

In addition, the safety reinforcing structure of the cooking apparatus according to the present invention may be provided in a form more detailed in the following embodiments in the basic configuration as described above.

As shown in FIGS. 2 to 5, each of the first blocking loop 22 and the second blocking loop 33 is a top inclined portion 40a provided at an upper edge of the top plate 40 and an outer edge of the top plate. It may be made of. In the first and second blocking loop structures, the upper plate-down inclined portion structure as described above assists the blocking function of the first and second blocking loops 22 and 33 so that a temperature sensor 11 may be installed around the cooking vessel or the cooking vessel. To more effectively block foreign substances entering the area below.

2 to 5, the cover part 30 is provided at the lower end of the corresponding groove part 32 and is positioned higher than the lower end of the groove part 21 of the main bracket 20. It serves to block foreign matter from flowing into the groove part 32. Therefore, the cover part 30 can completely block the foreign matter flowing in the lower portion of the temperature sensor 11 along the lower end of the corresponding groove 32 from the outside.

In addition, as shown in Figures 2 to 4, the engaging portion 23 of the main bracket 20 is at least two fixing to the fixing structure of the burner (not shown) via a fastener such as bolts and nuts, etc. It may be provided in the form including one arm fixing portion (23a). Therefore, the assembly of the temperature sensor 11, the main bracket 20 and the auxiliary bracket 31 is fixed structure of the burner via the first arm fixing portion 23a of the main bracket 20 and the fastener. Can be fixed stably. In addition, as shown in FIGS. 2 to 4, the main bracket 20 and the auxiliary bracket 31 are each provided with a second arm fixing portion 41 at at least two positions, and the two second arm fixing portions ( 41) may be fastened to each other by fastening fasteners such as bolts and nuts, respectively.

2 to 5, the cover portion 30 of the auxiliary bracket 31 is provided at the lower end portion of the corresponding groove portion 32. The cover portion 30 has an arc portion 30a having a larger radius of curvature than the corresponding groove portion 32 and a flat portion 30b formed to be inclined with respect to the arc portion 30a at the lower edge of the arc portion 30a. ), A downward inclined portion 30c formed to be inclined downwardly on both side portions of the flat plate portion 30b, and an upwardly inclined portion 30d formed to be inclined upwardly at the front side portion of the flat plate portion 30b. Can be. Therefore, the wire 7 can be guided smoothly to the outside through the arc portion (30a) in the tubular member (13). In addition, the flat plate portion 30b, the downwardly inclined portion 30c and the upwardly inclined portion 30d of the cover portion 30 effectively prevent the inflow of foreign substances such as broth from the surroundings to the wire 7 side of the tubular member 13. Block it. Reference numeral 7a denotes a connector provided at the outer end of the electric wire 7.

In addition, as shown in Figures 2 to 4, in the base portion 25 of the main bracket 20, on the upper surface of the base portion 25 is a spaced projection disposed inclined in the orientation direction of the wire (7) 25b) may be further provided. Therefore, the wire 7 is floated to a certain height from the bottom surface of the base portion 25 by the floating protrusion 25b of the base portion 25 to be protected from the foreign matter.

In addition, as shown in Figures 2 to 4, the lower outer peripheral surface of the temperature sensor 11 may be further provided with a loop portion 50 is provided to protrude radially outward along the rim. In this case, the loop part 50 is provided at the lower end of the first loop 50a and the first loop 50a formed larger than the outer diameters of the first and second blocking loops 22 and 33. The second loop 50b is larger than the outer diameter of the loop 50a. The roof portion 50 is preferably made of a thin tube shape so as to save the material and / or lower the manufacturing cost. The complex structure in which the loop part 50 is composed of first and second loops 50a and 50b effectively blocks foreign material from flowing into the wire 7 connected to the lower end of the temperature sensor 11. Rather, the moment of rotation due to external impact is relatively small, which has the effect of structurally strengthening durability.

On the other hand, the main bracket 20 and the auxiliary bracket 31 may be any one of a metal material and cast molding, a metal material and press molding, or a synthetic resin material and injection molding. .

Preferred assembling process and action of the safety reinforcing structure of the cooking apparatus according to the present invention as described above will be described with reference to FIGS.

As shown in FIGS. 2 to 5, first, the temperature sensor 11 is elastically pressed to fix the coil spring (not shown) through the tubular member 13, and then the ring type of the tubular member 13 is fixed. The main bracket 20 having the first blocking loop 22 and the auxiliary bracket 31 having the second blocking loop 33 are mutually coupled to face each other with respect to the protrusion 13a. Therefore, the ring-shaped protrusion 13a of the tubular member 13 is fitted into the coupling hole 21a and the corresponding coupling hole 32a of the main bracket 20 and the auxiliary bracket 31 to allow the main bracket 20 and the The auxiliary bracket 31 is stably supported by the tubular member 13.

2 and 5, the groove 21 of the main bracket 20 and the corresponding groove 32 of the auxiliary bracket 31 surround the lower portion of the tubular member 13. The cover portion 30 of the groove portion 32 covers a predetermined circumference of the corresponding groove portion 32. In addition, the main bracket 20 and the auxiliary bracket 31 can be fastened to each other by fasteners (not shown) composed of bolts and nuts to two second arm fixing portions 41, respectively.

Accordingly, the first blocking loop 22 and the groove 21 of the main bracket 20, the second blocking loop 33, the corresponding groove 32, and the cover 30 of the auxiliary bracket 31 are external. It is possible to effectively block the inflow of foreign matter from the lower wire (7) of the tubular member (13). As a result, the temperature sensor 11 is blocked by the inflow of foreign matter such as broth to the wire (7) side can be made smoothly up and down operation without sticking phenomenon. In addition, the arc portion (30a) of the auxiliary bracket 31 not only guides the wire (7) of the temperature sensor 11 in a naturally curved form, but also is not intended for work such as assembly, installation, or maintenance of the cooking apparatus. This protects the wire 7 from shocks that may be applied from the outside. In addition, the wire guide part 27 has a guide channel 27a of which a part of the upper part is vertically open to conveniently insert or separate the wire 7 of the temperature sensor 11 into the guide channel 27a. To be. In addition, the floating protrusion 25b of the base portion 25 floats the wire 7 at a predetermined height from the bottom surface of the base portion 25 to protect the wire 7 from the foreign matters around.

Figure 6 is a safety reinforcing structure of the cooking apparatus according to the present invention as shown in Figure 2 screw or through a plurality of first arm fixing portion 23a of the base portion 25 of the main bracket 20 It is shown to be fixed to the fixed structure of the burner 60 through a fastener such as a bolt. The burner 60 as shown in FIG. 6 is applied to a cooking apparatus such as a gas range and used.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and simple substitution, modification and alteration within the technical spirit of the present invention will be apparent to those skilled in the art.

7: wire 11: temperature sensor
13: tubular member 13a: ring-shaped protrusion
20: main bracket 21: groove
21a: coupling hole 22: first blocking loop
23: engaging portion 23a: first arm fixing portion
25a: opening 25b: floating protrusion
25: base portion 26: upper wall portion
27: wire guide 27a: guide channel
30a: arc part 30b: flat plate part
30c, 40a: downward slope 30d: upward slope
30: cover 31: auxiliary bracket
32: corresponding groove 32a: corresponding coupling hole
33: second blocking loop 40: top plate
41: second arm fixing portion 50: loop portion
50a: first loop 50b: second loop

Claims

A temperature sensor that detects the temperature of the cooking vessel placed on the cooking support, and the temperature sensor is fixed to the main body so that the temperature sensor can elastically move up and down along the length to slidably support the temperature sensor, and the temperature sensor is provided with a solenoid valve and a thermocouple. In the cooking apparatus comprising a tubular member through which the wire connected to the lower portion of the temperature sensor is passed along the inside to form a circuit with,
A ring-shaped protrusion provided on the outer circumferential surface of the tubular member to protrude radially outward along an edge;
A main bracket having a coupling hole into which a portion of the ring-shaped protrusion is fitted and including a groove portion surrounding a portion of the tubular member, a first blocking loop provided at an upper end portion, and a coupling portion provided at a peripheral portion thereof; And
As a coupling with the main bracket, a corresponding coupling hole for fitting the remaining portion of the ring-shaped protrusion is formed and a corresponding groove portion surrounding the remaining portion of the tubular member, and provided at an upper end and overlapping with an adjacent portion of the first blocking loop. And an auxiliary bracket including a second blocking loop.
The main bracket includes a base part including an opening, an inclined body integrally with one side of the base part, the groove part and the first blocking loop, and an upper wall part coupled to the auxiliary bracket, and to face the upper wall part. Safety structure of the cooking apparatus is provided integrally on the other side of the base portion and composed of a wire guide portion having a guide channel vertically open so that a portion of the upper portion to insert or detach the wire of the temperature sensor.

The method of claim 1,
Each of the first blocking loop and the second blocking loop is composed of a top slope and a downward inclined portion provided on the outer edge of the top plate safety reinforced structure of the cooking apparatus.

The method of claim 1,
The auxiliary bracket is provided on the lower end of the corresponding groove portion and is positioned higher than the lower end of the groove portion of the main bracket, further comprising a cover to block the inflow of foreign matter to the corresponding groove portion side.

The method of claim 1,
The coupling part of the main bracket includes at least two first arm fixing parts fixed to the fixing structure of the burner via a fastener.

The method of claim 3, wherein
The cover portion of the auxiliary bracket is provided at the lower end of the corresponding groove portion, the arc portion having a larger radius of curvature than the corresponding groove portion, the flat portion formed to be inclined with respect to the arc portion on the lower edge of the arc portion, both sides of the plate portion The safety inclined structure of the cooking apparatus comprising a downward inclined portion formed to be inclined downward, respectively, and an upward inclined portion formed to be inclined upwardly at the front side portion of the flat plate.

The method of claim 1,
Safety structure of the cooking apparatus having a floating protrusion on the upper surface of the base portion is disposed to be inclined in the direction of the orientation of the wire so that the electric wire from the base portion to a certain height.