JP2015041594A - Electrical equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide electrical equipment capable of leading out a wound power cable while fixing it at an arbitrary position of a wound part.SOLUTION: Electrical equipment comprises a housing 1 and a power cable 2 led out from the housing 1 to the exterior. The housing 1 has a wound part 30 around which the power cable 2 is wound and that opens outward the housing 1 so as to freely house the power cable 2. The power cable 2 has an elastic member 4 that can freely move in a length direction. The elastic member 4 is elastically and freely engaged with the opening 34 of the wound part 30 at a position where the power cable 2 is led out from the wound part 30.

Description

  The present invention relates to an electrical device that includes a housing and a power cable, and can wind the power cable around a winding portion of the housing, and in particular, an electrical device that allows the power cable to be pulled out from any position of the winding portion. About.

  An electrical device that supplies power from an external power source is configured such that a power cable is drawn out from a housing and an adapter provided at the tip of the power cable is inserted into an outlet. For example, there is an alarm device installed in a house or the like as a kind of electrical equipment. Alarms include gas leak alarms, fire alarms, or alarms that have these functions. The detector is equipped with a detector and an acoustic generator inside a box-shaped housing. When a fire is detected, a sound is generated from the sound generation unit so that the fact can be notified.

  Some alarm devices require a power source, and some have a built-in battery, but some have a power cable drawn from the housing connected to an external power source for reliable power supply over a long period of time. In the case of a housing with a power cable, a winding portion that allows the power cable to be freely wound is formed on the back side of the housing. It is possible to prevent the power cable from being exposed to the outside. Since the distance from the housing to the outlet varies, the length of the extra power cable that occurs when installing electrical equipment also varies, and the power cable can be changed by changing the number of times the power cable is wound around the winding part. The length can be adjusted. As an electrical apparatus provided with such a winding part in a housing, there is one as disclosed in Patent Document 1, for example.

JP-A-8-190683

  In an electrical device in which a power cable is wound around a winding portion of a housing, it is desirable to stably hold the wound power cable. For that purpose, it is necessary to fix the part pulled out from the winding part of the power cable by locking or the like. Conventionally, one or a plurality of locking portions are provided at a predetermined position on the outer peripheral side of the winding portion, and the power cable drawn out to the locking portions is locked.

  However, in the structure in which the power cable is locked to the locking portion, the drawing position of the power cable is limited to the position of the locking portion. For this reason, the routing of the power cable is limited, and the length adjustment of the power cable is also limited by the position and number of the locking portions. Further, when the power cable is not locked to the locking portion, the drawing position of the power cable is not stable, and the design property is impaired due to the power cable drooping.

  This invention is made | formed in view of the said subject, and it aims at providing the electric equipment which can be pulled out, fixing the wound power supply cable in the arbitrary positions of a winding part.

In order to solve the above-mentioned problem, an electrical device according to the invention of claim 1 is an electrical device having a casing and a power cable drawn out from the casing.
The casing has a winding portion that winds and can be accommodated by winding the power cable and opens toward the outside of the casing, and the power cable has an elastic member that can move in the length direction, and the elastic member Is constructed such that the power cable can be elastically locked to the opening of the winding portion at a position where the power cable is drawn out from the winding portion.

  According to the invention which concerns on Claim 1, a power supply cable can be latched with an elastic body in the arbitrary positions in opening of a winding part.

  In the electric device according to the second aspect of the present invention, the winding portion has a rising portion that protrudes from one surface of the housing, and a flange that extends from the rising portion substantially parallel to the one surface of the housing. And the opening is formed between the end of the flange and the housing.

  According to the invention which concerns on Claim 2, a power supply cable can be easily fixed by pushing an elastic body in a winding part from opening.

  Furthermore, the electric device according to the invention of claim 3 is characterized in that the elastic member is formed in a tube shape that is elastically deformable.

  According to the invention which concerns on Claim 3, while making an elastic member easy, it can be easily moved along a power cable.

  Furthermore, the electric device according to the invention of claim 4 is characterized in that an outer diameter of the elastic member is larger than a width of the opening.

  According to the invention which concerns on Claim 4, when an elastic member is inserted in opening, an elastic member deform | transforms and it can latch with respect to opening reliably by elastic force.

  According to the electrical device of the present invention, the power cable can be fixed at an arbitrary position of the winding portion, so that the degree of freedom in routing the power cable can be improved and the exposure of the power cable can be minimized. Since the holding can be performed in a suppressed state, it is possible to prevent deterioration of the design property due to the power cable hanging down.

It is a perspective view of the alarm device which is an electric equipment in this embodiment. It is a rear view of an alarm device. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a rear view of the alarm device in the state where the power cable is pulled out at a position other than the notch. It is a rear view of the alarm device in a state where the power cable is fixed. It is BB sectional drawing of FIG. 2 in the state which fixed the power cable. It is AA sectional drawing of the state in which the power cable was fixed. It is a rear view of the alarm device which fixed the power cable by latching the whole elastic body to opening.

  Embodiments of the present invention will be described in detail with reference to the drawings. The present invention can be applied regardless of the function as long as it is an electric device having a casing and a power cable. In the present embodiment, an alarm device will be described as an example. This alarm device has a function of detecting a gas leak or incomplete combustion in a monitored area by detecting gas and notifying by voice or the like.

  In FIG. 1, the perspective view of the alarm device which is an electric equipment in this embodiment is shown. The alarm device has a housing 1 formed in a substantially box shape. A power cable 2 is drawn out from the housing 1, and an AC adapter 3 is provided at the tip of the power cable 2. In FIG. 1, most of the power cable 2 is wound around the housing 1, and the power is supplied to the alarm device by pulling out the power cable 2 by a required length and connecting the AC adapter 3 to an outlet. be able to.

  The housing 1 is configured to have a substantially box shape by integrating the front cover body 10 and the rear cover body 11. The housing 1 is installed on a wall surface of a room, and includes a front surface 12 exposed to the room side, a back surface 13 opposite to the front surface 12 facing the wall surface side, the front surface 12 and the back surface. 13 includes a side surface 14, an upper surface 15, and a lower surface 16 that constitute a surface connecting the 13. Further, a flat portion 32 is formed so as to face the back surface 13, and the power cable 2 can be wound around a space between the back surface 13 and the flat portion 32. A hook portion 36 is formed at the center of the upper end portion of the flat portion 32, and the housing 1 can be fixed to a wall surface or the like by inserting a pin or the like therein.

  A gas inlet 20 is formed on one side surface 14 of the housing 1. The gas inlet 20 communicates with the inside of the housing 1, and a sensor is disposed in the housing 1 in the vicinity of the gas inlet 20 to detect the gas flowing in from the gas inlet 20. Can do.

  On the front surface 12 of the housing 1, an operation button 21 is formed at the bottom, a sound generation unit 22 is formed at the top, and a display unit 23 composed of a plurality of LEDs is arranged on one side. The operation button 21 has a function of stopping the alarm when an alarm is generated. The sound generator 22 generates a sound alarm when a gas leak or incomplete combustion is detected. Moreover, the display part 23 lights according to the kind at the time of alarm generation | occurrence | production.

  FIG. 2 shows a rear view of the alarm device. As shown in this figure, a notch 35 is formed at the lower edge of the flat portion 32 on the back side, and the power cable 2 can be locked to the notch 35. By being locked at the position where the power cable 2 is pulled out, the wound power cable 2 can be stably held. In FIG. 2, the power cable 2 is wound as much as possible around the housing 1, and the power cable 2 is locked to the notch 35 at a position near the end near the AC adapter 3. .

  An elastic body 4 that is movable along the length direction of the power cable 2 is attached to the power cable 2. The elastic body 4 is formed in a tube shape with rubber or the like, and has an inner diameter equal to the outer diameter of the power cable 2. The use of the elastic body 4 will be described in detail later.

  3 shows a cross-sectional view taken along the line AA in FIG. 2, and FIG. 4 shows a cross-sectional view taken along the line BB in FIG. As shown in these drawings, a winding portion 30 in which the power cable 2 can be wound and stored is formed on the back side of the housing 1. The winding portion 30 is formed by a rising portion 31 protruding from the back surface 13 of the housing 1 and a planar flange portion 33 extending from the rising portion 31 toward the outer peripheral side of the housing 1. The flange portion 33 is constituted by a part of the flat surface portion 32.

  As shown in FIG. 3, the wound power cable 2 can be stored in a space formed by the rising portion 31, the flange portion 33, and the back surface 13 of the housing 1. One rising portion 31 is formed on each of the upper and lower surfaces of the rear surface 13 of the housing 1. In the region between the upper and lower rising portions 31, as shown in FIG. 4, the flat surface portion 32 and the rear surface 13 of the housing 1. The power cable 2 is accommodated in the space between the two.

  The winding portion 30 opens toward the outside of the housing 1 over the entire circumference. On the upper side of the housing 1, a gap between the end of the flange portion 33 and the back surface of the housing 1 is opened toward the outer peripheral side of the housing 1 as it is. On the lower side and the left and right sides of the housing 1, projecting pieces 37 are formed in which the side surfaces 14 and the lower surface 16 extend beyond the rear surface 13. The gap between the back surface of the body 1 is not directly exposed toward the outer peripheral side of the housing 1. On the other hand, since the end portion of the flange portion 33 and the protruding piece 37 are separated from each other, the region in which the power cable 2 is accommodated is between the end portion of the flange portion 33 and the end portion of the protruding piece 37. The opening 34 that is formed opens toward the outside of the housing 1.

  The elastic body 4 provided in the power cable 2 is formed so that it can be elastically locked to the opening 34 of the winding portion 30. By moving the elastic body 4 along the length direction of the power cable 2, the elastic body 4 is elastically locked to the opening 34 of the winding portion 30 at a position where the power cable 2 is pulled out from the winding portion 30. The power cable 2 can be fixed at the position where the power cable 2 is pulled out from the winding portion 30.

  FIG. 5 shows a rear view of the alarm device in a state where the power cable 2 is pulled out at a position other than the notch 35. When installing the alarm device on the wall surface or the like, the power cable 2 is pulled out from the winding portion 30 by a required length. The drawing position of the power cable 2 from the winding part 30 is determined by the position of the outlet, etc., and is drawn from one side of the flat part 32 in FIG.

  In FIG. 6, the rear view of the alarm device in the state which fixed the power cable 2 is shown. From the state of FIG. 5, the one end side of the elastic body 4 provided in the power cable 2 is pushed into the opening 34 of the winding part 30, so that the power cable 2 is pulled out from the winding part 30. Can be fixed. The elastic body 4 has an outer diameter slightly larger than the width of the opening 34, and can be inserted into the opening 34 while being elastically deformed. Can be fixed so that there is no.

  FIG. 7 shows a cross-sectional view taken along the line BB in FIG. 2 in a state where the power cable 2 is fixed. As shown in this figure, the elastic body 4 is in a state where the portion pushed into the opening 34 is deformed and is locked to the opening 34 by elastic force. The power cable 2 is not limited to the position shown in FIGS. 6 and 7, and can be fixed at any position in the circumferential direction of the winding portion 30. FIG. 8 is a cross-sectional view taken along line AA of FIG. 2 in a state where the power cable 2 is fixed. In this figure, the power cable 2 is pulled out from the lower side of the winding portion 30 and the power cable 2 is fixed at the position where it is pulled out from the winding portion 30 by pushing the elastic body 4 into the opening 34. .

  As described above, the elastic body 4 provided so as to be movable in the length direction of the power cable 2 can be elastically locked to the opening 34 of the winding portion 30, so that an arbitrary position of the winding portion 30 can be obtained. It is possible to pull out and fix the power cable 2 in order to improve the degree of freedom in routing the power cable 2 and to hold the power cable 2 with the exposure of the power cable 2 minimized. Therefore, it is possible to prevent the deterioration of the design property due to the power cable 2 hanging down.

  7 and 8, the one end side of the elastic body 4 is inserted into the opening 34 of the winding portion 30, but the entire elastic body 4 can be locked to the opening 34. FIG. 9 shows a rear view of the alarm device in which the power cable 2 is fixed by locking the entire elastic body 4 to the opening 34. As shown in this figure, the elastic body 4 can be elastically locked to the opening 34 by inserting the elastic body 4 into the opening 34 in a state along the circumferential direction of the winding portion 30. Even in this case, the elastic body 4 can be disposed at an arbitrary position of the winding portion 30 and can be locked to the opening 34.

  Thus, by elastically locking the elastic body 4 with respect to the opening 34 in the direction along the circumferential direction of the winding portion 30, the length of pulling out the power cable 2 from the winding portion 30 is short, and the elastic body 4. The elastic body 4 can be locked to the opening 34 even when one end portion of the power supply cable 2 cannot be sufficiently inserted into the space in which the power cable 2 is stored. Further, by locking the elastic body 4 as shown in FIG. 9, the direction of the power cable 2 to be drawn out can be directed to a wider angle, and the degree of freedom of the power cable 2 can be further increased. it can.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea. As described above, in this embodiment, the alarm device has been described as a kind of electric device. However, it goes without saying that the present invention can be applied to an electric device having other functions. Further, the configuration of the casing 1, the winding part 30, and the opening 34 is not limited to the form of the present embodiment, and even in other forms, it is elastic with respect to the opening formed on the outer periphery of the winding part. The present invention can be configured by providing a lockable elastic body on the power cable.

DESCRIPTION OF SYMBOLS 1 Case 2 Power cable 3 AC adapter 4 Elastic body 10 Front cover body 11 Rear cover body 12 Front surface 13 Rear surface 14 Side surface 15 Upper surface 16 Lower surface 20 Gas inlet 21 Operation button 22 Sound generating portion 23 Display portion 30 Winding portion 31 Rise part 32 Plane part 33 Gutter part 34 Opening 35 Notch part 36 Hook part 37 Projection piece

Claims (4)

In an electric device having a housing and a power cable drawn out from the housing,
The casing has a winding portion that winds and can be accommodated by winding the power cable and opens toward the outside of the casing, and the power cable has an elastic member that can move in the length direction, and the elastic member The electric device is characterized in that the power cable can be elastically locked to the opening of the winding portion at a position where the power cable is drawn out from the winding portion.   The winding part has a rising part formed so as to protrude from one surface of the casing, and a flange extending substantially parallel to one surface of the casing from the rising part, and an end of the flange The electrical apparatus according to claim 1, wherein the opening is formed between the housing and the housing.   The electric device according to claim 1, wherein the elastic member is formed in a tube shape that is elastically deformable.   The electric device according to claim 3, wherein an outer diameter of the elastic member is larger than a width of the opening.

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