KR102493377B1 - Apparatus for reeling cable - Google Patents

Abstract

The present invention relates to a cable reel device, and more particularly, to a cable reel device capable of connecting a long-distance external power source by pulling out a coiled cable by a predetermined length.
A cable reel device according to the present invention includes a frame including a casing having an inner space; a plug winding unit including a plug drum rotatably installed below the inside of the casing, a plug cable wound around the outside of the plug drum, and a plug installed at one end of the plug cable; An outlet winding unit including an outlet drum installed inside the casing to be individually rotatable coaxially with the plug drum, an outlet cable wound around the outside of the outlet drum, and an outlet installed at one end of the outlet cable. class; A relay terminal unit including a plug terminal part electrically connected to the other end of the plug cable and an outlet terminal part electrically connected to the other end of the outlet cable and electrically connected to the plug terminal part.

Description

Cable reel device {Apparatus for reeling cable}

The present invention relates to a cable reel device, and more particularly, to a cable reel device capable of connecting a long-distance external power source by pulling out a coiled cable by a predetermined length.

In general, an outlet refers to a wiring appliance used by inserting a plug of an electrical device, and the type of outlet includes a buried outlet embedded in a structure such as a wall or a pillar or an exposed outlet used by being exposed to the outside. On the other hand, the plug is a wiring device that is connected to an electrical appliance and plugged into an outlet. By inserting the plug into the outlet, the electrical appliance and the external power source can be electrically connected to supply power to the electrical appliance.

In particular, the exposed outlet is used for drawing electricity from an external power source far away from the site during work requiring electricity in a large space at a work site or outdoors where there is no power outlet. In general, an exposed outlet is composed of an outlet into which electrical appliances can be plugged in, and a plug electrically connected to the outlet through a cable and connected to another outlet connected to an external power source.

At this time, if the length of the cable of the electric appliance is short and does not reach the external power source, the electric appliance must be moved to a location close to the external power source or an exposed outlet having a longer cable length must be used. However, the work site or outdoor conditions are not constant, and an excessively long length of cable has a problem in that it can act as a risk factor for pedestrians to trip over or an element that impairs aesthetics.

In order to solve this problem, Republic of Korea Patent Registration No. 10-0477531 discloses a "power cord built-in outlet unit" to pull out as many cables of the power strip as necessary from the unit body or to wind the cable into the unit body.

This "power cord built-in outlet unit" has the advantage of being able to locate a power strip consisting of multiple outlets far from an external power source, but due to the large size of the unit body in which the cable is stored in a state where it is wound in several layers, There is a disadvantage in that the unit main body cannot be connected to the external power source when there are many obstacles at the location of the external power source or when sufficient space is not secured.

Meanwhile, in Republic of Korea Utility Model Registration No. 20-0294024, electrical outlets and plugs are installed on both sides of one power cord, and the power cord is wound inside the body so that the user pulls the electrical outlet and plug from the body, respectively. A "cord reel electrical outlet" intended to be released from the body is disclosed.

Such a "cord reel electrical outlet" has the advantage of being able to connect only the plug by pulling out even if there are many obstacles in the location of the external power source, but as much as the plug is released from the body, the outlet is also released from the body in the same way. As a result, depending on the position of the body, excessively loosened cables may damage the aesthetics or cause a pedestrian to trip and fall over.

Republic of Korea Patent Registration No. 10-0477531 : Power cord built-in outlet unit Republic of Korea Utility Model Registration No. 20-0294024: Cord reel electrical outlet

The present invention is to improve the above problems, and by pulling out the cables of the outlet and the plug only by the required length, it is possible to prevent aesthetic damage due to excessively drawn cables or pedestrians from being tripped over by the cables excessively. It is an object of the present invention to provide a cable reel device that can be used.

In order to solve the above technical problem, a cable reel device according to the present invention includes a frame including a casing having an inner space; a plug winding unit including a plug drum rotatably installed below the inside of the casing, a plug cable wound around the outside of the plug drum, and a plug installed at one end of the plug cable; An outlet winding unit including an outlet drum installed inside the casing to be individually rotatable coaxially with the plug drum, an outlet cable wound around the outside of the outlet drum, and an outlet installed at one end of the outlet cable. class; A relay terminal unit including a plug terminal part electrically connected to the other end of the plug cable and an outlet terminal part electrically connected to the other end of the outlet cable and electrically connected to the plug terminal part.

According to one aspect of the present invention, the plug winding unit further includes a lower spring installed between the plug drum and the casing to provide rotational force to the plug drum in a direction in which the plug cable is wound around the plug drum. .

At this time, the plug drum is formed to extend in a hollow cylindrical shape along the vertical direction to accommodate a plug winding portion around which the plug cable is wound, and a plug winding portion extending below the plug winding portion to accommodate the lower spring inside. It may be provided with a lower spring accommodating portion provided with an accommodating space.

According to another aspect of the present invention, the outlet winding unit further includes an upper spring installed between the outlet drum and the casing to provide rotational force to the outlet drum in a direction in which the outlet cable is wound around the outlet drum. .

At this time, the outlet drum is formed to extend in a hollow cylindrical shape along the vertical direction, and is formed to extend from an outlet winding portion around which the outlet cable is wound to the outside and to an upper portion of the outlet winding portion to accommodate the upper spring inside. An upper spring accommodating portion provided with an accommodating space may be provided.

According to another aspect of the present invention, the relay terminal unit includes a support plate fixedly installed between the plug take-up unit and the outlet take-up unit inside the casing, and is fixed to the support plate, and the plug terminal unit and the Further comprising an auxiliary terminal unit that rotatably couples the outlet terminal unit to each other, wherein the plug terminal unit includes a plug joint extending upward from the plug drum, and a second connector installed on the upper portion of the plug joint and electrically connected to the plug cable. It includes first and second plug electrodes, and the outlet terminal unit includes an outlet joint extending downward from the outlet drum, and first and second outlet electrodes installed below the outlet joint and electrically connected to the outlet cable. The auxiliary terminal part includes an auxiliary joint fixed to the support plate between the plug terminal part and the outlet terminal part, and a first lower relay electrode installed to be in contact with the first plug electrode at a lower part of the auxiliary joint. And, a second lower relay electrode installed in contact with the second plug electrode at the lower part of the auxiliary joint, and installed in contact with the first outlet electrode at the upper part of the auxiliary joint and electrically connected to the first lower relay electrode A first upper relay electrode and a second upper relay electrode installed on the auxiliary joint to be in contact with the second outlet electrode and electrically connected to the second lower relay electrode.

In this case, an auxiliary power supply unit having an auxiliary power supply terminal electrically connected to the auxiliary terminal unit and exposed to the outside to connect an external electric device to the casing may be further provided.

According to another aspect of the present invention, the auxiliary power supply unit is electrically connected to the auxiliary terminal unit and transforms the voltage of the external power connected through the outlet, and the auxiliary power supply terminal from the inside of the casing. An auxiliary connection portion fixed to be exposed to the outside is further provided, and the auxiliary power supply terminal is electrically connected to the transformer and electrically connected to the auxiliary terminal through the transformer.

As described above, in the cable reel device according to the present invention, the plug drum on which the plug cable is wound and the outlet drum on which the outlet cable is wound can rotate independently of each other, but are electrically connected to each other, so that the cable of the outlet and the plug is drawn out only to a required length. It is possible to prevent damage to aesthetics due to excessively drawn cables, and also to prevent a pedestrian from being tripped over and falling due to excessively drawn cables.

1 is a perspective view of a cable reel device according to an embodiment of the present invention;
Figure 2 is an exploded perspective view for explaining the configuration of the cable reel device of Figure 1;
3 is a cross-sectional view of the cable reel device of FIG. 1;
4 is a partially enlarged cross-sectional view of the relay terminal unit of FIG. 1 ;

Hereinafter, a cable reel device according to the present invention will be described with reference to the accompanying drawings. 1 to 4 show a cable reel device according to an embodiment of the present invention.

Referring to the drawings, a cable reel device according to an embodiment of the present invention includes a casing 11 having an inner space, a plug winding unit 20 rotatably installed below the inside of the casing 11, and the plug An outlet winding unit 40 installed to be individually rotatable on a coaxial line with the winding unit 20, a relay terminal unit 60 electrically connecting the plug winding unit 20 and the outlet winding unit 40 to each other, An auxiliary power supply unit 90 capable of connecting an external electric device to the casing 11 is provided.

The casing 11 is divided into a body portion 12 and a lid portion 16.

The body portion 12 has an inner space and is formed in a box shape with an open top. The main body portion 12 extends from the upper end in an inward horizontal direction, and a flange portion 13 supporting a lid portion 16 to be described later is extended.

The body portion 12 has an outlet mounting portion 13 provided with an outlet mounting space 13a having a shape corresponding to the outer shape of the outlet 52 so that the outlet 52 to be described later can be inserted on one side along the front and back direction. do. The outlet mounting portion 13 is installed such that the outlet mounting space 13a communicates with the outside. At one side of the outlet mounting portion 13, an outlet cable entry hole 13b communicating between the outlet mounting space 13a and the inner space of the main body 12 is formed through, so that the outlet cable 51 is connected to the outlet cable entry hole 13b. ) It is connected to the outlet 52 located outside the main body 12 through.

The body portion 12 has a plug mounting portion 14 provided with a plug mounting space 14a having a shape corresponding to the outer shape of the plug 32 so that the plug 32 to be described later can be inserted on the other side along the front and rear direction. do. The plug mounting portion 14 is installed such that the plug mounting space 14a communicates with the outside. At one side of the plug mounting portion 14, a plug cable entry hole 14b, which communicates the plug mounting space 14a and the inner space of the main body 12, is formed through the plug cable 31 through the plug cable entry hole 14b. ) is connected to the plug 32 located outside the body portion 12 through.

The body portion 12, the outlet mounting portion 13, and the plug mounting portion 14 may be configured in such a way that they are mutually assembled in a divided state.

An auxiliary coupling hole 12a is formed through the body portion 12 to communicate with the inner space so that an auxiliary power supply terminal 97 to be described later is exposed on one side along the left and right directions so that an auxiliary connection portion 95 is installed.

The lid portion 16 is formed in a plate shape capable of closing the upper portion of the body portion 12 .

A rib plate 18 is protruded from each inner corner of the casing 11 so that a support plate 17 to be described later can be fixedly installed. The rib plate 18 is formed on the inside of the casing 11 at a height between the plug winding unit 20 and the outlet winding unit 40 along the vertical direction. The rib plate 18 is formed in a plate shape with an upper end forming a support end 16a parallel to the inner bottom surface of the casing 11 . The rib plate 18 is formed with a threaded fastening hole on the inside so that it can be screwed with the support plate 17 to be described later along the vertical direction.

The plug winding unit 20 consists of a plug drum 21 rotatably installed below the inner side of the casing 11, a plug cable 31 wound around the outside of the plug drum 21, and a plug cable 31. A direction in which the plug 32 installed at one end and connectable to an external power source and the plug cable 31 installed between the plug drum 21 and the casing 11 and unwound by external force are wound around the plug drum 21 It is provided with a lower spring 29 that provides rotational force to the plug drum 21.

The plug 32 is a general outlet plug that can be connected to the negative and positive terminals of an external outlet electrically connected to an external power source. The plug cable 31 is electrically connected to the plug 32 and consists of a negative cable and a positive cable that are mutually insulated.

The plug drum 21 includes a plug winding part 22 around which the plug cable 31 is wound, and a lower spring receiving part 24 installed below the plug winding part 22.

The plug winding portion 22 extends in a cylindrical shape along the vertical direction. The plug cable 31 is attached by being in close contact with the outer circumferential surface of the plug take-up portion 22 and being wound in a spiral shape that proceeds downward along the spiral direction.

The lower spring receiving portion 24 is installed below the plug take-up portion 22. The lower spring receiving portion 24 has a cylindrical shape having a larger outer diameter than the outer diameter of the plug winding portion 22 and extends downward. The lower spring accommodating portion 24 has an upper portion closed and a lower portion open so that a lower spring accommodating space 24a is provided at the lower portion.

On the outer side along the horizontal direction of the lower spring receiving portion 24, a first lower spring fixing groove 24b corresponding to the cross-sectional shape of the lower spring 29 is provided so that one end of the lower spring 29 can be inserted and fixed. through is formed.

The lower spring 29 may be a reel spring extending from a central end to a radial end along the same spiral direction as the direction in which the plug cable 31 wound on the outside of the plug take-up portion 22 is wound. In a state where the lower spring 29 is accommodated in the lower spring accommodating space 24a, the radial end is inserted and fixed into the first lower spring fixing groove 24b of the lower spring accommodating portion 24.

The central end of the lower spring 29 is fixed while being inserted into the second lower spring insertion groove 26a of the lower support shaft 26 to be described later.

A lower support shaft 26 is formed extending upward from the center coaxial with the lower spring receiving portion 24 on the bottom surface of the body portion 12 adjacent to the lower spring receiving portion 24 . The upper end of the lower support shaft 26 extends to a length that does not interfere with the lower spring receiving portion 24 . A second spring insert 26a is inserted into the upper portion of the lower support shaft 26 so that an outer portion perpendicular to the extending direction of the lower support shaft 26 passes through from the upper end.

The lower surface of the body part 12 adjacent to the lower spring receiving part 24 is coaxial with the lower spring receiving part 24, and the outer diameter of the lower spring receiving part 24 is wrapped around the outer circumferential surface of the lower spring receiving part 24. A lower supporting jaw 19a having an inner diameter corresponding to the protruding portion is formed. The lower support jaw 19a interferes with the lower spring 29 fitted into the first lower spring fixing groove 24b in a state where the lower end of the lower support spring 24 is inserted to be accommodated inside the lower support jaw 19a. It is formed protruding to an undesirable height. The lower support jaw 19a serves to prevent the plug drum 21 from flowing in the radial direction when the plug drum 21 rotates.

The outlet take-up unit 40 consists of an outlet drum 41 rotatably installed inside the casing 11, an outlet cable 51 wound on the outside of the outlet drum 41, and an outlet cable 51. The direction in which the outlet cable 51 installed between the outlet 52 installed at one end and connectable to an external power source, the outlet drum 41 and the casing 11 and unwound by external force is wound around the outlet drum 41 It is provided with an upper spring 49 that provides rotational force to the outlet drum 41.

The receptacle 52 is a general receptacle for a plug to which a negative terminal and a positive terminal of an external plug electrically connected to an external electrical device can be connected. The outlet cable 51 is electrically connected to the outlet 52 and is composed of a negative cable and a positive cable that are mutually insulated.

The outlet drum 41 includes an outlet take-up portion 42 around which the outlet cable 51 is wound, and an upper spring receiving portion 44 installed above the outlet take-up portion 42.

The outlet winding portion 42 extends in a hollow cylindrical shape along the vertical direction. The outlet cable 51 is mounted by being in close contact with the outer circumferential surface of the outlet retractor 42 and being wound in a spiral shape progressing upward along the spiral direction.

The upper spring receiving portion 44 is installed on the upper portion of the outlet winding portion 42. The upper spring receiving portion 44 has a cylindrical shape having a larger outer diameter than the outer diameter of the outlet winding portion 42 and extends upward. The upper spring accommodating portion 44 has a lower portion closed and an upper portion open so that an upper spring accommodating space 44a is provided at the upper portion.

On the outer side along the horizontal direction of the upper spring receiving portion 44, a first upper spring fixing groove 44b corresponding to the cross-sectional shape of the upper spring 49 is provided so that one end of the upper spring 49 can be inserted and fixed. through is formed.

The upper spring 49 may be a reel spring extending from a center end to a radial end along the same spiral direction as the direction in which the outlet cable 51 wound on the outside of the outlet take-up portion 42 is wound. In a state where the upper spring 49 is accommodated in the upper spring accommodating space 44a, the radial end is inserted and fixed into the first upper spring fixing groove 44b of the upper spring accommodating portion 44.

The central end of the upper spring 49 is fixed while being inserted into the second upper spring insertion hole 46a of the upper support shaft 46 to be described later.

An upper support shaft 46 is formed extending downward from the center coaxial with the upper spring receiving portion 44 on the inner lower surface of the lid portion 16 adjacent to the upper spring receiving portion 44 . The lower end of the upper support shaft 46 extends to a length that does not interfere with the upper spring receiving portion 44 . A second spring insertion hole 46a is formed in the lower portion of the upper support shaft 46 to pass through an outer portion perpendicular to the extension direction of the upper support shaft 46 from the lower end.

The lower surface of the lid portion 16 adjacent to the upper spring accommodating portion 44 is coaxial with the upper spring accommodating portion 44 and covers the outer circumferential surface of the upper spring accommodating portion 44. An upper supporting jaw 19b having an inner diameter corresponding to an outer diameter is protruded. The upper support jaw 19b includes an upper spring 49 fitted into the first upper spring fixing groove 44b while the upper end of the upper spring receiving portion 44 is inserted to be accommodated inside the upper support jaw 19b. It is formed protruding at a height that does not interfere. The upper supporting jaw 19b serves to prevent the outlet drum 41 from flowing in the radial direction during rotation.

The relay terminal unit 60 includes a plug terminal portion 61 electrically connected to the other end of the plug cable 31, an outlet terminal portion 71 electrically connected to the other end of the outlet cable 51, and a plug terminal portion ( 61) and the support plate 17 fixedly installed between the outlet terminal portion 71 and fixedly installed on the support plate 17 to electrically connect the plug terminal portion 61 and the outlet terminal portion 71 in a mutually rotatable state It is provided with an auxiliary terminal unit 81.

The plug terminal part 61 is installed on the outside of the plug joint 62 installed on the plug winding unit 20 and the plug joint 62 to be electrically connected to the plug cable 31 and the first and second plugs. It includes electrodes 65a and 65b.

The plug joint 62 is installed on top of the plug drum 21. The plug joint 62 is divided into a plug connection portion 63 installed on the top of the plug drum 21 and a plug rotation shaft portion 64 extending from the top of the plug connection portion 63 to a smaller outer diameter.

The plug connection portion 63 extends from the upper end of the plug drum 21 to have a larger outer diameter than the plug drum 23 . First and second plug electrode coupling grooves 63a and 63b are formed on the lower surface of the plug connection portion 63 so that the first and second plug electrodes 65a and 65b can be coupled thereto. The first and second plug electrode coupling grooves 63a and 63b are formed in an annular shape having the same central axis as the axis of the plug drum 21 . The first and second plug electrode coupling grooves 63a and 63b are formed to have different diameters. In this embodiment, the second plug electrode coupling groove 63b is formed with a larger diameter than the first plug electrode coupling groove 63a. In this embodiment, the cross-sectional shape of the first and second plug electrode coupling grooves 63a and 63b is rectangular. In the plug connection portion 63, through-holes are formed downwardly from inner lower surfaces of the first and second plug electrode coupling grooves 63a and 63b to communicate with the lower surface of the plug connection portion 63. Threads are formed on the inner circumferential surface of each through hole of the plug connection portion 63 so that the first and second plug connection terminals 31a and 31b to be described later can be screwed.

The plug rotation shaft portion 64 is formed to extend to have an inner diameter that can be inserted into a coupling hole of a lower joint 83 to be described later.

The first and second plug electrodes 65a and 65b are metallic conductors. The first and second plug electrodes 65a and 65b are formed in an annular shape having different diameters.

The first plug electrode 65a has a diameter corresponding to the first plug electrode coupling groove 63a of the plug connection part 63 and has a rectangular cross section. The first plug electrode 65a is coupled to the first plug electrode coupling groove 63a.

The second plug electrode 65b has a diameter corresponding to the second plug electrode coupling groove 63b of the plug connection part 63 and has a rectangular cross section. The second plug electrode 65b is coupled to the second plug electrode coupling groove 63b. The first and second plug electrodes 65a and 65b are installed in a mutually insulated state.

The first and second plug electrodes 65a and 65b are electrically connected to the other end of the plug cable 31 . As a method for this, first, in the plug cable 31, the first plug connection terminal 31a is coupled to the other end of the positive cable, and the second plug connection terminal 31b is coupled to the other end of the negative cable. At this time, the first and second plug connection terminals 31a and 31b may be a general ring crimp terminal that can be electrically connected by crimping using a terminal crimper in a state in which the end of the cable is inserted.

The first and second plug connection terminals 31a and 31b are screwed through the through hole of the plug connection part 63 . The fastening member coupling the first and second plug connection terminals 31a to the plug connection part 63 contacts the first and second plug electrodes 65a and 65b through the through hole of the plug connection part 63, and electrically connected to the second plug connection terminals 31a and 31b and the first and second plug electrodes 65a and 65b. The first plug connection terminal 31a is electrically connected to the first plug electrode 65a, and the second plug connection terminal 31b is electrically connected to the second plug electrode 65b.

The outlet terminal part 71 is installed on the outside of the outlet joint 72 installed below the outlet winding unit 40 and the outlet joint 72 to electrically connect the other end of the outlet cable 51 to the first and second outlet terminals 71. It includes two outlet electrodes 75a and 75b.

The outlet joint 72 is installed below the outlet drum 41. The outlet joint 72 is divided into an outlet connection portion 73 installed below the outlet drum 41 and an outlet rotation shaft portion 74 extending from the lower end of the outlet connection portion 73 to a smaller outer diameter.

The outlet connection portion 73 extends from the lower end of the outlet drum 41 to have a larger outer diameter than the plug drum 23 . First and second outlet electrode coupling grooves 73a and 73b are formed on the lower surface of the outlet connection portion 73 so that the first and second outlet electrodes 75a and 75b can be coupled thereto. The first and second outlet electrode coupling grooves 73a and 73b are formed in an annular shape having the same central axis as the axis of the outlet drum 41 . The first and second outlet electrode coupling grooves 73a and 73b are formed to have different diameters. In this embodiment, the second outlet electrode coupling groove 73b is formed with a larger diameter than the first outlet electrode coupling groove 73a. In this embodiment, the cross-sectional shape of the first and second outlet electrode coupling grooves 73a and 73b is rectangular. The outlet connection portion 73 is in communication with the top surface of the outlet connection portion 73 through through-holes respectively formed upward from the inner upper surfaces of the first and second outlet electrode coupling grooves 73a and 73b. Screw threads are formed on the inner circumferential surface of each through hole of the outlet connection portion 73 so that the first and second outlet connection terminals 51a and 51b to be described later can be screwed.

The outlet rotating shaft portion 74 is formed to extend to have an inner diameter that can be inserted into a coupling hole of an upper joint 84 to be described later.

The first and second outlet electrodes 75a and 75b are metallic conductors. The first and second outlet electrodes 75a and 75b are formed in an annular shape having different diameters.

The first outlet electrode 75a has a diameter corresponding to the first outlet electrode coupling groove 73a of the outlet connection part 73 and is formed in a rectangular cross section. The first outlet electrode 75a is coupled to the first outlet electrode coupling groove 73a.

The second outlet electrode 75b has a diameter corresponding to the second outlet electrode coupling groove 73b of the outlet connection portion 73 and is formed in a rectangular cross section. The second outlet electrode 75b is coupled to the second outlet electrode coupling groove 73b. The first and second outlet electrodes 75a and 75b are installed in a mutually insulated state.

The first and second outlet electrodes 75a and 75b are electrically connected to the other end of the outlet cable 51. As a method for this, first, in the outlet cable 51, the first outlet connection terminal 51a is coupled to the other end of the positive cable, and the second outlet connection terminal 51b is coupled to the other end of the negative cable. At this time, a general ring crimp terminal may be applied to the first and second outlet connection terminals 51a and 51b.

The first and second outlet connection terminals 51a and 51b are screwed through the through hole of the outlet connection part 73 . The fastening member coupling the first and second outlet connection terminals 51a to the outlet connection portion 73 contacts the first and second outlet electrodes 75a and 75b through the through-holes of the outlet connection portion 73, thereby providing a first and the second outlet connection terminals 51a and 51b and the first and second outlet electrodes 75a and 75b are electrically connected. The first outlet connection terminal 51a is electrically connected to the first outlet electrode 75a, and the second outlet connection terminal 51b is electrically connected to the second outlet electrode 75b.

The auxiliary terminal unit 81 is installed on the inside of the auxiliary joint 82 fixed to the support plate 17 and the auxiliary joint 82 to be electrically connected to the first and second plug electrodes 65a and 65b. first and second lower relay electrodes 85a and 85b, first and second upper relay electrodes 86a and 86b electrically connected to the first and second outlet electrodes 85a and 85b, and first and second upper relay electrodes 86a and 86b; 2 includes first and second branched electrodes 87a and 87b branched between the lower relay electrodes 85a and 85b and the first and second upper relay electrodes 86a and 86b.

The support plate 17 is formed in a rectangular plate shape having a predetermined thickness. The support plate 17 has a through hole formed at each corner side corresponding to the fastening hole of the rib plate 18 in the thickness direction, and each corner is screwed to be supported by the rib plate 18.

The auxiliary joint 82 is divided into a lower joint 83 and an upper joint 84.

The lower joint 83 and the upper joint 84 have an annular plate shape provided with an insertion hole on the inside so that the plug rotation shaft portion 64 or the outlet rotation shaft portion 74 can be rotatably inserted therein. The lower joint 83 is installed on the lower surface of the support plate 17, and the upper joint 84 is installed on the upper surface of the support plate 17.

The plug rotation shaft portion 64 is installed to be inserted into the insertion hole of the lower joint 83 so that the plug connection portion 63 can rotate coaxially with respect to the lower joint 83.

The first and second lower relay electrodes 85a and 85b are installed on the lower surface of the lower joint 83. The first and second lower relay electrodes 85a and 85b are metallic conductors extending to a predetermined length. The first and second lower relay electrodes 85a and 85b have one end fixed to the lower surface of the lower joint 83. The first and second lower relay electrodes 85a and 85b are metallic conductors. The first lower relay electrode 85a has the other end in contact with the first plug electrode 25a and is electrically connected, and the second lower relay electrode 85b has the other end in contact with the second plug electrode 25b. are installed and connected electrically. The first and second lower relay electrodes 85a and 85b are bent to be deflected downward as they progress in the other direction, so that even if the plug connection portion 63 moves upward and downward slightly in a rotating state, the first and second plug electrodes 25a , 25b) exerts an elastic force in contact to maintain an electrically connected state. In addition, the first and second lower relay electrodes 85a and 85b are manufactured to have a relatively thick thickness at the other end, so that contact with the first and second plug electrodes 25a and 25b causes wear and tear to prevent disconnection. It is preferably designed to delay. In addition, since a plurality of pairs of first and second lower relay electrodes 85a and 85b are installed symmetrically about the axis of the plug drum 21, the elastic force of the first and second lower relay electrodes 85a and 85b is It is preferable to be configured to act uniformly along the horizontal direction of the second plug electrodes 25a and 25b. The first and second lower relay electrodes 85a and 85b are insulated from each other.

The outlet rotation shaft portion 74 is assembled to be inserted into the insertion hole of the upper joint 84, so that the outlet connection portion 73 is rotatably installed with respect to the upper joint 84 on a coaxial line.

The first and second upper relay electrodes 86a and 86b are installed on the upper surface of the upper joint 84. The first and second upper relay electrodes 86a and 86b are metallic conductors extending to a predetermined length. The first upper relay electrode 86a is electrically connected to the first lower relay electrode 85a. The second upper relay electrode 86b is electrically connected to the second lower relay electrode 85b. The first and second upper relay electrodes 86a and 86b have one end fixed to the upper surface of the upper joint 84. The first and second upper relay electrodes 86a and 86b are metallic conductors. The first upper relay electrode 86a is installed so that the other end is in contact with the first outlet electrode 45a and is electrically connected, and the second upper relay electrode 86b has the other end in contact with the second outlet electrode 45b. are installed and connected electrically. The first and second upper relay electrodes 86a and 86b are bent to be biased upward as they progress in the other direction, so that even if the outlet connection part 73 moves up and down slightly in a rotating state, the first and second outlet electrodes 45a , 45b) and exerts an elastic force in contact to maintain an electrically connected state. In addition, the first and second upper relay electrodes 86a and 86b are manufactured to have a relatively thick thickness at the other end, so that contact with the first and second outlet electrodes 45a and 45b causes wear and tear to prevent disconnection. It is preferably designed to delay. In addition, since a plurality of pairs of first and second upper relay electrodes 86a and 86b are installed symmetrically around the axis of the outlet drum 41, the elastic force of the first and second upper relay electrodes 86a and 86b is It is preferable to be configured to act uniformly along the horizontal direction of the second outlet electrodes 45a and 45b. The first and second upper relay electrodes 86a and 86b are insulated from each other.

The first and second branch electrodes 87a and 87b are installed above the support plate 17 . The first and second branch electrodes 87a and 87b are metallic conductors. The first branch electrode 87a and the second branch electrode 87b are installed to be insulated from each other. The first branch electrode 87a is electrically connected to the first lower relay electrode 85a or the first upper relay electrode 86a. The second branch electrode 87b is electrically connected to the second lower relay electrode 85b or the second upper relay electrode 86b.

In this embodiment, the branch cable insertion hole 17a is formed through the support plate 17 in the width direction, and the first branch cable installed to be electrically connected to the first lower relay electrode 85a from the lower joint 83 ( 88a) is connected to the first branch electrode 87a so that the first branch electrode 87a is connected to the first lower relay electrode 85a and electrically connected to the second lower relay electrode 85b. As the branch cable 88b is connected to the second branch electrode 87b, the second branch electrode 87b is connected to the second lower relay electrode 85b.

The auxiliary power supply unit 90 is electrically connected to the auxiliary terminal unit 81 and electrically connected to the transformer unit 91 for converting the voltage of the external power connected through the outlet, and electrically connected to the transformer unit 91 and provides an external electric device. It includes an auxiliary connection part 95 having an auxiliary power supply terminal 97 that can be connected.

In this embodiment, the auxiliary power supply terminal 97 is electrically connected to the transformer 91 and electrically connected to the auxiliary terminal 81 through the transformer 91, but otherwise, the transformer 91 is omitted. In this case, it may be directly electrically connected to the auxiliary terminal unit 81.

The transformer 91 may be a transformer capable of converting a voltage of 380V to 440V, which is mainly used in industrial fields, to 220V, which is a rated voltage of a general electric device. The transformer unit 91 is electrically connected to the auxiliary terminal unit 81 by having an anode connected to the first branch electrode 87a and a cathode connected to the second branch electrode 87b.

The auxiliary connection part 95 includes an adapter 96 fixed to the body part 12 and an auxiliary power supply terminal 97 mounted on the adapter 96 and electrically connected by inserting a connection port of an external electric device. do.

In this embodiment, the auxiliary power supply terminal 97 is a connection means for connecting an external electrical device conforming to the USB (Universal Serial Bus) standard. The auxiliary power supply terminal 97 is electrically connected to the transformer 91 . Unlike this embodiment, the auxiliary power supply terminal 97 may be applied with a different type of connection means if necessary.

The adapter 96 is formed in the shape of a hexahedron and is installed so that the auxiliary power supply terminal 97 is exposed on one side.

The adapter 96 is fixedly installed so that one side on which the auxiliary power supply terminal 97 is installed is exposed to the outside through the auxiliary coupling hole 12a of the main body 12.

In addition, an LED terminal portion installed to be exposed to the outside of the casing 11 may be further provided. The LED terminal part is electrically connected to the transformer part 91 to exert a design effect, as well as displaying the energized state between the outlet 52 and the plug 32 to the outside, so that the user can easily check whether there is a malfunction. do

Hereinafter, operational effects of the cable reel device according to an embodiment of the present invention will be described.

In the cable reel device according to an embodiment of the present invention, the outlet 52 is inserted into the outlet mounting space 13a of the outlet mounting portion 13, and the plug 32 is inserted into the plug mounting space 14a of the plug mounting portion 14. In the inserted state, the user can pull the plug 32 from the main body 12 and pull out the plug cable 31 as long as it reaches the outlet of the external power source. In addition, in a state where the outlet 52 is inserted into the outlet mounting space 13a of the outlet mounting portion 13, the user pulls the outlet 52 from the body portion 12 and extends the length of the outlet cable 51 to the plug of the external electric device. ) can be withdrawn. At this time, as the plug drum 21 on which the plug cable 31 is wound and the outlet drum 41 on which the outlet cable 51 is wound are individually rotated, the plug cable 31 and the outlet cable 51 are individually drawn out. As a result, each drawn-out length is individually adjusted. In addition, the plug cable 31 drawn out from the body part 12 is arranged by being wound around the plug drum 21 by the rotational force of the lower spring 29, and the outlet cable 51 drawn out from the body part 12 is arranged at the upper part. They are individually arranged by being wound around the outlet drum 41 by the rotational force of the spring 49.

In addition, the cable reel device according to an embodiment of the present invention is electrically connected to the plug 32, but the high voltage power used in the industrial field is converted to general power through the transformer 91 having a separate energization structure from the outlet 52. By changing the voltage used in the electrical device and connecting an external electrical device such as a radio or mobile phone through the auxiliary connection unit 95, it is possible to configure an environment in which a radio or mobile phone can be charged in the field.

Therefore, as described above, the cable reel device according to an embodiment of the present invention prevents the plug cable 31 and the outlet cable 51 from being pulled out too long, thereby preventing an accident in which a pedestrian is tripped over by a cable that is stretched out. By doing so, it not only has a safety advantage, but also has an aesthetic advantage that it is possible to organize cables effectively.

On the other hand, the cable reel device according to an embodiment of the present invention as described above can connect an external electrical device, thereby providing a budget and It has the advantage of preventing the waste of manpower.

11: casing 20: plug winding unit
40: outlet winding unit 60: relay terminal unit
90: auxiliary power supply unit

Claims (8)

a frame including a casing having an inner space;
a plug winding unit including a plug drum rotatably installed below the inside of the casing, a plug cable wound around the outside of the plug drum, and a plug installed at one end of the plug cable;
An outlet winding unit including an outlet drum installed inside the casing to be individually rotatable coaxially with the plug drum, an outlet cable wound around the outside of the outlet drum, and an outlet installed at one end of the outlet cable. class;
A relay terminal unit including a plug terminal portion electrically connected to the other end of the plug cable and an outlet terminal portion electrically connected to the other end of the outlet cable and electrically connected to the plug terminal portion,
The outlet winding unit further includes an upper spring installed between the outlet drum and the casing to provide rotational force to the outlet drum in a direction in which the outlet cable is wound around the outlet drum,
The outlet drum is formed to extend in a hollow cylindrical shape along the vertical direction and has an outlet winding portion on the outside to which the outlet cable is wound, and an accommodation extending upward to the upper portion of the outlet winding portion to accommodate the upper spring on the inside. Equipped with an upper spring receiving portion provided with a space,
The relay terminal unit includes a support plate fixedly installed between the plug take-up unit and the outlet take-up unit inside the casing, and fixedly installed on the support plate to rotatably couple the plug terminal portion and the outlet terminal portion to each other. Further providing an auxiliary terminal unit,
The plug terminal part includes a plug joint extending from the top of the plug drum, and first and second plug electrodes installed on the top of the plug joint and electrically connected to the plug cable,
The outlet terminal unit includes an outlet joint extending from the bottom of the outlet drum, and first and second outlet electrodes installed below the outlet joint and electrically connected to the outlet cable,
The auxiliary terminal unit includes an auxiliary joint fixed to the support plate between the plug terminal part and the outlet terminal part, a first lower relay electrode installed to be in contact with the first plug electrode at a lower part of the auxiliary joint, and the auxiliary terminal part. A second lower relay electrode installed in contact with the second plug electrode at the bottom of the joint, and a first upper relay installed in contact with the first outlet electrode at the top of the auxiliary joint and electrically connected to the first lower relay electrode an electrode, and a second upper relay electrode installed in contact with the second outlet electrode at an upper portion of the auxiliary joint and electrically connected to the second lower relay electrode;
The casing has an inner space and is formed in a box shape with an open top and has a main body portion having a flange portion extending in an inward horizontal direction from the top end,
A plug mounting portion having a plug mounting space having a shape corresponding to the outer shape of the plug is installed in the main body portion so that the plug can be inserted therein,
The casing further includes a protruding rib plate to fix and install the support plate at each inner corner,
The cable reel device, characterized in that the upper end of the rib plate is formed in a plate shape forming a support end parallel to the inner bottom surface of the casing, and a fastening hole with a screw thread formed therein so that it can be screwed with the support plate. According to claim 1,
The cable reel device of claim 1 , wherein the plug winding unit further includes a lower spring installed between the plug drum and the casing to provide rotational force to the plug drum in a direction in which the plug cable is wound around the plug drum. According to claim 2,
The plug drum is formed to extend in a hollow cylindrical shape along the vertical direction and has a plug winding portion on the outside to which the plug cable is wound, and an accommodation extending below the plug winding portion to accommodate the lower spring on the inside. A cable reel device comprising a lower spring accommodating portion provided with a space. delete delete delete According to claim 1,
The cable reel device further comprising an auxiliary power supply unit electrically connected to the auxiliary terminal unit and having an auxiliary power supply terminal exposed to the outside to connect an external electric device to the casing. According to claim 7,
The auxiliary power supply unit includes a transformer electrically connected to the auxiliary terminal unit to change the voltage of the external power connected through the outlet, and an auxiliary connection unit for fixing the auxiliary power supply terminal to be exposed from the inside of the casing to the outside. provide more,
The cable reel device, characterized in that the auxiliary power supply terminal is electrically connected to the transformer and electrically connected to the auxiliary terminal through the transformer.

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