JPH0813948A - Feeding device to electrical apparatus of sliding door - Google Patents

Abstract

PURPOSE:To stably feed electric power to an electrical apparatus provided on a sliding door by moving a mobile pulley within a fixed stroke along a guide member while applying desired tension to an electric wire. CONSTITUTION:One end of an electric wire K is connected to an electrical apparatus 13, the other side is connected to a power source M, and electric power is fed from a door frame F side. The mobile pulley 2 rotatably supports a pulley 21 in a casing 22, the wire of a guide member 5 is inserted through it to make it movable in the lateral direction, and one end of the drawing spring of an exciting member 23 is supported on the casing 22. One end of the electric wire K is fixed at the upper section of a sliding door 1 by a fixing tool 6, and the other end is fixed to the upper frame 3 of the door frame F. The electric wire K located between another fixing member 4 and the fixing tool 6 is suspended and folded along part of the outer periphery of the pulley 21. The mobile pulley 2 is drawn by the drawing spring 23, the electric wire K located on the opposite side across the mobile pulley 2 is kept at the tensile state, and it is prevented from drooping.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door electric device for pulling an electric wire connected to an electric device such as an electric lock or an interphone provided in a sliding door movable in a lateral direction from a door frame side. Regarding a power supply device. In the present specification, the electric wire refers to a lead wire for supplying a drive current to an electric device, a signal wire for control, a cable including the lead wire and the signal wire, or a cord in a broad sense. Say.

[0002]

2. Description of the Related Art When an electric device such as an electric lock, an interphone, or an operation button for automatic opening and closing is installed in a sliding door, an electric wire connected to the electric device must be drawn into the sliding door from the door frame side. However, since the sliding door moves laterally laterally, setting the length of the wire to match the shortest distance to the electrical equipment causes a hindrance to the movement of the sliding door, and conversely adjusts the length to match the longest distance. If set, the electric wire may hang down and be caught between the sliding door and the door frame.

Therefore, for the purpose of eliminating the above-mentioned inconvenience, the applicant of the present application first applied for a power feeding device for an electric device of a sliding door as described in the specification and the drawings of Japanese Patent Application No. 6-55229. There is. This power supply device is provided with a storage device for the electric wire surrounded by a casing on the side of the sliding door,
A plurality of movable pulleys and a plurality of fixed pulleys are arranged in the storage device, electric wires are alternately laid between the plurality of fixed pulleys and a plurality of movable pulleys, and a slider having a role of a weight on the movable pulleys. Are connected. That is, the position of the movable pulley is changed by the slider that moves up and down, and the relative distance between the movable pulley and the fixed pulley is changed, whereby the electric wire hung between the movable pulley and the fixed pulley is adjusted according to the movement of the sliding door. The length of the wire is changed so that the wire is stored so as not to cause slack.

[0004]

However, in the above-mentioned Japanese Patent Application No. 6-55229, the power supply device for the electric equipment of the sliding door, the plurality of fixed pulleys and the plurality of movable sheaves are stacked and arranged in the casing. Therefore, there is a problem in that the thickness of the entire device becomes large and the mounting space becomes large. Further, since at least four pulleys and a plurality of shafts for pivotally supporting the pulleys are required, there are drawbacks such as a large number of parts and a complicated structure.

In view of the above points, the present invention is capable of stably supplying electric power to an electric device provided in a sliding door, has a simple structure, requires a small installation space, and can be opened and closed without any trouble. An object is to provide a power feeding device for an electric device.

[0006]

A power supply device for an electric device of a sliding door according to the present invention is a power supply device for an electric device of a sliding door for supplying electric power to an electric device provided in the sliding door from a door frame side through an electric wire. Above the sliding door, an electric wire, one of which is fixed to the sliding door or the electric device and the other of which is fixed to the door frame side, a movable pulley in which the electric wire is stretched, and the movable pulley is urged in a direction in which the electric wire is stretched. And a guide member for guiding the movable pulley in the reciprocating direction of the sliding door.

As the above-mentioned electric equipment, an electric locking / unlocking mechanism such as a solenoid or a motor, a micro switch for taking out a confirmation signal or a locking / unlocking control signal for confirming the opening / closing of a door or locking / unlocking of an electric lock, etc. A so-called electric lock that electrically locks, an operation button in an automatic door that is automatically opened and closed electrically, or an interphone is used. The electric wires connected to the electric equipment include the electric wires for power supply and the electric wires for confirmation and control as described above.

The urging member may be one that urges the movable pulley in the pulling direction or one that urges the movable pulley in the pushing direction. Examples of the urging member that urges in the pulling direction include a tension coil spring, a rubber member, Examples thereof include a wire with a weight, and examples of those that are biased in the pushing direction include a compression coil spring, a gas or oil spring, and a pantograph type leaf spring.

The guide member may be a wire made of metal, a string made of fiber, a bar or pipe made of metal or synthetic resin, or integrally formed on a part of the sash forming the door frame. Absent. The shape of the guide member is arbitrary such as circular or rectangular in cross section.

The movable pulley is provided with a rotatable pulley and is suspended on a guide member. The movable pulley is composed of a casing and a pulley rotatably supported in the casing. An electric wire is hung along a part of the outer periphery of the pulley and a guide portion is guided to the casing by a guide member. And a biasing member support portion that supports one end portion of the biasing member. However, the structure is not limited to this.

Both ends of the guide member are supported and fixed by fixing members, one end of the bias member is supported by one fixing member, and a part of the electric wire is fixed by the other fixing member. Preferably there is. However, at least one of the both fixing members may be omitted by attaching at least one end of the guide member to the door frame side.

The guide member is composed of a wire, and the wire is preferably supported and fixed in a tension state between two fixing members. One fixing member has the other end of the guide member and the other end of the urging member. It is desirable that the other fixing member has a structure for supporting and fixing one end of the guide member and a part of the electric wire.

Further, it is preferable that the guide member is arranged parallel to the reciprocating direction of the sliding door, and the length of the guide member is at least ½ or more of the maximum moving distance of the sliding door.

The urging member is composed of a tension spring such as a tension coil spring, and the tension spring is preferably arranged at a position facing the position where the electric wire is arranged with the movable pulley interposed therebetween.

It is preferable that an electric wire is inserted into an opening formed in the upper part of the sliding door, and a part of the electric wire is pressed and fixed by a fixture provided above the opening. A configuration in which the electric wire is inserted into the opening and the other end of the electric wire is fixed to the electric device portion can be implemented without using such a fixture.

At least the movable pulley, the guide member and the urging member are preferably housed inside the upper frame of the door frame.

[0017]

The electric wire, one of which is fixed to the sliding door or the electric equipment side and the other of which is fixed to the door frame side, is provided with a movable pulley between the two fixing portions which may be loosened, and the movable pulley is attached in the tension direction of the electric wire. Since the electric wire is urged by the urging member to pull the electric wire with a desired tension, the electric wire is always kept in a tensioned state. Moreover, the movable sheave is moved in the forward and reverse directions along the guide member with a predetermined tension applied to the electric wire. Therefore, in either case of opening or closing the sliding door, the electric wire does not hang down and is not caught between the sliding door and the door frame.

Referring to FIG. 2, the maximum movement stroke L2 of the sliding door 1 is determined according to the opening / closing amount of the opening of the door frame to be installed, and the electric wire K is folded back by the movable pulley 2. Therefore, the moving stroke L1 of the movable pulley 2 that moves by hooking the electric wire K is one half of the maximum moving stroke L2 of the sliding door 1. Therefore, the range of use of the movable pulley and the electric wire is reduced, the durability is improved, and the mounting space can be reduced. In addition, the guide member 5
With at least one-half this length, the movable pulley 2 can be guided without any trouble. At this time, the amount of displacement of the biasing member 23 naturally needs to be half the moving stroke of the sliding door 1.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a partially cutaway front view showing an open state of the sliding door, and FIG. 2 is a partially cutaway front view showing a state where the sliding door of FIG. 1 is manually or electrically moved in the direction of arrow a to be closed. 6 is a perspective view of one fixing member 3, FIG. 4 is a perspective view of the other fixing member 4, FIG. 5 is an exploded perspective view of a movable pulley, FIG.
7 is a partially broken perspective view of the fixture 6, and FIG.
It is a perspective view which shows an example of 1.

F is a door frame having an arbitrary size, and the door frame F includes a left vertical frame F1, a right vertical frame F2, an upper frame F3, and a lower frame F.
An opening is formed by being surrounded by 4, and the left side of the opening is an opening P that serves as a doorway when the sliding door 1 is open. A guide part for a sliding door having a groove (not shown) is provided on the lower part of the upper frame F3, and a guide part for a rail or a groove having a groove is provided on the lower frame F4. The sliding door 1 is stored in, and the upper end of the sliding door 1 is guided in the groove of the upper guide portion.
The rolling elements 11, 11 roll on the guide portion of the lower frame F4,
The sliding door 1 is adapted to run left and right.

In this embodiment, the present invention is applied to a single-opening system with one sliding door 1, but it can also be applied to a sliding door type in which two or more sliding doors 1 are provided. In addition, the sliding door 1 is provided with a guide portion of, for example, a rail or a concave groove in a lower portion of the upper frame F3 of the door frame F, and the upper portion of the sliding door 1 that suspends the upper portion is moved to the left and right in this guide portion to open and close the door. It can also be used as a so-called hanging door or a folding door that can be folded freely.

An electric device 13 such as an electric lock, an interphone, or an operation button (in this embodiment, an electric lock is adopted) is attached to a part of the sliding door 1.

One end of an electric wire K is connected to the electric device 13, and a power source M is connected to the other end of the electric wire K. Therefore, the electric device 13 provided in the sliding door 1 is supplied with power from the door frame F side through the electric wire K.

Above the sliding door 1, at least one is fixed to the sliding door 1 or the electric device 13 side, and the other is fixed to the door frame F side by an electric wire K (electric wire for power supply, electric wire for confirmation or control, etc.). Of the electric wire K, a movable pulley 2 stretched between the fixed portions of the electric wire K, a biasing member 23 for urging the movable pulley 2 in the direction in which the electric wire K is stretched, and the movable pulley 2 reciprocates in the sliding door 1. A guide member 5 for guiding in the moving direction is provided. The electric wire K, the movable pulley 2, the urging member 23, the guide member 5, and the fixing members 3 and 4 described later are the upper frame F3 of the door frame F in this embodiment (the casing 8 that also serves as the upper frame F3 in this embodiment). ) And is covered with a casing lid 8a, which has a dust-proof effect on each of these constituent members and has a beautiful appearance. It goes without saying that a configuration without the casing lid 8a can be implemented.

As the electric wire K, in this embodiment, a lead wire for supplying a driving current to a motor or a solenoid of an electric lock which is the electric device 13, a signal line for detecting and transmitting the locking / unlocking of the electric lock, and the like are put together. Although a cable is used, it may be an insulated wire in a narrow sense or a cable or the like, and is optional.

A metal wire is used as the guide member 5, both ends of which are fixed by two left and right fixing members 3 and 4, and the electric wire portion between both fixing members 3 and 4 is stretched in a tensioned state. are doing. A tension spring, which is the biasing member 23, is used as the fixed member 3 (a tension coil spring is used in the embodiment).
Of the electric wire K is fixed to the other fixing member 4. The fixed electric wire K is drawn out to the power source M or the like outside the door frame F through the connector C1.

As will be described in detail later, the movable pulley 2 rotatably supports the pulley 21 inside a casing 22, and a wire serving as a guide member 5 is inserted into the casing 22 to laterally and laterally. The casing 22 supports one end of a pulling spring which is a biasing member 23. The movable pulley 2 is always fixed by the urging member 23 to the fixed member 3.
It is biased to the side (toward the left side of the figure).

One of the wires K is fixed to the upper part of the sliding door 1 by a fixing tool 6, and the other is fixed to the upper frame F3 of the door frame F. An electric wire K between the other fixing member 4 and the fixture 6.
Is hung and folded back along a part of the outer circumference of the pulley 21. Therefore, when the movable pulley 2 is pulled by the pulling spring 23, the electric wire K at the position opposite to the opposite side of the movable pulley 2 is maintained in a tensioned state and does not hang down.

The electric wire K below the fixture 6 is drawn into the sliding door 1 and connected to the electric device 13 via the connector C2. Further, the tensile strength of the pulling spring, which is the urging member 23, is set so as to apply a tension to the electric wire K.
It is desirable that the strength is such that it does not move in the direction of arrow a shown by. However, the sliding door 1 can be held in the closed state by the biasing force of the biasing member 23, and in that case, the tensile strength of the pulling spring 23 may be set high. Further, the wire 5 is provided with a slack prevention member 51 described later,
The slack prevention member 51 also supports a part of the electric wire K,
Therefore, it is preferable to prevent the slack of the wire 5 and the electric wire K.

In order to change from the opened state of FIG. 1 to the closed state of FIG. 2, the sliding door 1 may be moved manually or automatically by the maximum movement distance indicated by the symbol L2 in FIG. At this time, the movable pulley 2 is pulled by the biasing force of the pulling spring 23 and the door closing force from the outside, and moves from the position shown by the solid line in FIG. 1 and the broken line in FIG. 2 to the position shown by the solid line in FIG. However, the movement length thereof is shown by reference numeral L1 in FIG. Electric wire K is pulley 21
Since it is stretched over and folded back, L1 corresponds to half the length of L2. Therefore, if the wire as the guide member 5 has a length of at least ½ of L2, the slack and shortage of the electric wire K will not occur. Figure 1 of sliding door 1
When the sliding door 1 is opened as described above, by opening the sliding door 1 against the urging force of the urging member 23, the movable pulley 2 can pass from the solid line position in FIG. Like In this way, the electric wire K between the fixed member 4 and the fixture 6 is urged by the urging member 23 via the movable pulley 2 regardless of whether the sliding door 1 is opened or closed.

In the opening / closing operation of the sliding door 1, the electric wire K outside the fixing member 4 (right side portion of the fixing member 4) and the electric wire K below the fixture 6 (electric wire inside the sliding door 1) are the same as the fixing member 4 described above. And is fixed by the fixture 6,
It does not slacken or pull in, and is held stably.

As shown in FIG. 3, one fixing member 3 is composed of a main body 31 having a concave cross section and an arm member 34 connected to an upper portion of the main body 31 via a support pin 33. An insertion hole 35 is formed in the longitudinal direction at the tip of the arm member 34, and screw holes 36, 36 are formed in a direction intersecting with the insertion hole 35. One end of the wire, which is the guide member 5, is passed through the insertion hole 35 to be pulled, and a fixing screw 37 is screwed into the screw hole 36 to fix the end portion of the wire. The arm member 34 is preferably pivotally supported with respect to the main body 31, which allows a small movement of the wire 5 and facilitates tensioning of the wire 5. In addition, 34a is a recessed part in FIG.

A spring support pin 32 is provided on the lower portion of the main body 31 as a biasing member support portion, and the spring support pin 32 is supported by hooking a hook portion at the end of the tension spring 23. FIG.
The angle member 38 indicated by a chain line is connected to the fastening holes 31a provided in the upper and lower portions of the main body 31 by a fastening member such as a bolt or a caulking pin, and the angle member 38 is connected.
Is fixed to the casing 8, the door frame F (F3), a sash member which is a fitting frame, a wall surface, or the like with fixing bolts 38a and 38a.

As shown in FIG. 4, the other fixing member 4 is mainly composed of a main body 41 having a concave cross section. It is preferable to use the main body 41 having the same shape as the main body 31 to reduce the kinds of parts. Body 4
A wire support pin 42 is provided on the upper part of the wire 1, the tip of the wire 5 is folded back on the wire support pin 42, the ring portion is hooked, and the wire tip 5a portion is connected and fixed by caulking tools 52, 52. An opening 41a for inserting the electric wire K is formed in the central portion of the right side plate of the main body 41, and a pair of screw holes 41 are formed in the front plate and the rear plate of the main body 41.
b and 41b are formed. The screw holes 43b formed in the electric wire fixture 43 are aligned with the screw holes 41b, and the screws 4
3b is screwed in and the electric wire fixtures 43, 43 are attached.
The electric wire K is sandwiched between the recess 43a of the electric wire fixture 43 and the wall surface of the main body 41, and the electric wire K is fixed to the main body 41. Note that the fixing of the other side of the electric wire K is not limited to this example, and may be fixed to the door frame F, the casing 8, and an arbitrary position on the wall surface by another fixing member.

In the main body 41, screws 43d and 43d are screwed into fastening holes 41c and 41c provided in the upper and lower parts to connect an angle member 48 shown by a chain line, and the angle member 48 is fixed through fixing holes 48a and 48a. Casing 8 or door frame F
Alternatively, it is fixed to a wall surface with a fixing bolt. The fixing members 3 and 4 are not limited to those described above, and the shape and structure thereof may be changed according to the types of the guide member 5, the biasing member 23, and the electric wire K.

In this embodiment, the movable pulley 2 has the structure shown in FIG. That is, the casing 22a, 22b is divided into upper and lower halves, and the pulley 21 is rotatably supported by a center pin 24 between the casings 22a, 22b. The center pin 24 is attached to the casings 22a and 22b and the pulley 21.
Are formed with pin bearings 24a, 24a and pin holes 21a, respectively, and the casings 22a, 22b are provided with screw holes 26 for fixing the two with fixing screws 26.
a and 26b are formed.

The pulley 21 has flanges 21c, 21c formed around the annular groove 21b, and the annular groove 2 of the pulley 21 is formed.
The electric wire K is stretched over 1b.

A guide portion 25 guided by a wire as the guide member 5 is formed laterally in the lower casing 22b, and the guide portion 25 is provided in the upper casing 2.
The lid is closed by 2a. In addition, both casings 22a,
A pin support portion 23b is formed on 22b (the casing 22a on the upper side does not appear in the illustrated example), and a spring support pin 23a that supports a hook portion at the end of the pulling spring 23 is fitted to the pin support portion 23b. . The spring support pin 23a
The pin support portion 23b constitutes a biasing member support portion.

With the above structure, the movable pulley 2 is reciprocally movable along the length direction of the wire which is the guide member 5, and the pulley 21 on which the electric wire K is stretched is rotatably held and the electric wire K is held. When is loosened, it is pulled by a pulling spring which is the biasing member 23 and moves.

As shown in FIG. 6, in the fixture 6, an opening 1b is formed in the top plate 1a of the sliding door 1, and the electric wire K is introduced into the sliding door 1 from here. A fixture 6 as shown in FIG. 6 is detachably attached to the top plate 1a of the sliding door 1 having the opening 1b. This fixing tool 6 has an opening 1b of the sliding door.
A board 60 having a communication hole 60a communicating with the board 60, and a board 60 provided at a distance from the board 60 so that a part of the electric wire K fixed to the board 60 and inserted through the communication hole 60a can be pressed and fixed. It is composed of an L-shaped fixture main body 61. Although various fixing means for fixing the board 60 and the fixture body 61 can be designed, in this embodiment, screw holes 62, 62, 62, 62 are formed at the four corners of the fixture body 61, and the board 60 also has the screw holes. 62 ... 62 are formed with screw holes (not shown) at positions facing each other, and fixing screws 63 are provided in these screw holes.
Join by screwing. In this combined state, the electric wire K passing through the communication hole 60a has a gap 6 formed by the edge of the communication hole 60a of the substrate 60 and the fixture body 61.
4 and the electric wire K is fixed in the gap 64. In order to prevent the electric wire K from being damaged at the edge of the communication hole 60a, it is preferable to preliminarily arrange a protector 65 such as an elastic packing at this edge.

The fixture body 61 is the substrate 6 in FIG.
Although it is formed separately from 0, the fixture main body 61 may be integrally formed with the substrate 60 by bending. It is also possible to configure the fixing device main body 61 alone without the substrate 60.

FIG. 7 shows an example of a slack preventing member 51 for preventing the electric wire K and the guide member 5 from sagging or twisting. Whether or not the slack prevention member 51 should be installed and the number of the slack prevention members 51 can be arbitrarily set. The sagging prevention member 51 is integrally formed of a metal material or a plastic material,
A wire insertion hole 54 for inserting the wire 5 is formed in the upper part thereof, and tubular support pieces 53, 53, which are partially cut away, are formed in the lower part so as to face each other.
The electric wire K is inserted into the insertion portion of 3. The notch formed outward in each support piece 53 is a through opening portion 53a, and the electric wire K is detachable by fitting the electric wire K into the opening portion 53a. The shape of the support piece 53 is arbitrarily set according to the shape of the electric wire, and the number of the support pieces 53 provided is also arbitrarily set. Further, a notch (not shown) similar to the through opening 53a is formed in a part of the outer peripheral wall of the wire insertion hole 54 in the length direction so that the wire 5 can be freely inserted and inserted. Is also good.

[0043]

[Modifications] FIG. 8 and FIG. 9 are schematic explanatory views showing first and second modifications of the biasing member 23, respectively. The urging member 23 shown in FIG. 8 is one of the members for pulling and urging the movable pulley 2. The urging member 23 is composed of a suspension wire 55, a fixed pulley 57 and a weight 56, and the movable pulley 2 has a suspension wire 55. Is fixed at one end thereof, the suspension wire 55 is hung on a fixed pulley 57, and a weight 56 is connected to one end thereof. That is, the weight of the weight 56 acts on the movable pulley 2 to urge it in the direction of the arrow.

The urging member 23 in FIG. 9 shows one of the members for pushing and urging the movable pulley 2. The urging member 23 is composed of a tension spring 58 such as a tension coil spring. That is,
A stopper 59 is provided on one side of the rod-shaped guide member 5, and the tension spring 58 is provided between the stopper 59 and the movable pulley 2. The elastic force of the tension spring 58 causes the movable pulley 2 to move in the arrow direction. Urge to. The biasing member of the type that pushes and biases in this way is arranged in the same direction as the position where the electric wire is arranged.

The biasing member 23 may be an elastic member such as a gas type spring, a pantograph type leaf spring, natural rubber, or synthetic rubber other than the above-mentioned members.

10 and 11 are perspective views showing the first and second modifications of the movable pulley 2, respectively. In FIG. 10, the pulley 21 is a drum-shaped one having no flange portion, and the pulley 21 is rotatably provided on a center pin 24 protruding from the lower casing. Also casing 2
2, a spring support pin 23a is erected as a biasing member support portion to support the hook portion of the pulling spring 23.

In the structure shown in FIG. 11, the casing 22 is formed with a protrusion 22c as a biasing member supporting portion, a through hole 22d is provided therein, and the hook portion of the tension spring 23 is directly hooked to the through hole 22d. As a result, the number of parts can be reduced without the need for support pins.

In the above embodiment, one of the electric wires K is fixed to the sliding door 1, but it may be fixed on the electric device 13 side.

[0049]

According to the present invention as set forth in claim 1, an electric wire having one fixed to a sliding door or an electric device side and the other fixed to a door frame side is provided with a movable pulley between fixing portions which may be loosened. hand,
Since the movable pulley is urged in the tension direction of the electric wire by the urging member and the electric wire is pulled under a desired tension, the electric wire is always maintained in the tensioned state. Moreover, the movable sheave is moved in the forward and reverse directions along the guide member with a predetermined tension applied to the electric wire. Therefore, in either case of opening or closing the sliding door, the electric wire does not hang down and is not caught between the sliding door and the door frame. Further, since the biasing member biases the movable pulley in the wire tension direction, that is, the door closing direction, the door can be smoothly closed. Further, the device of the present invention can also be used as an automatic closing device capable of automatically closing a door by using a member having a large urging force as the urging member.

Further, since the electric wire is folded back by the movable pulley, the moving stroke of the movable pulley which moves by hooking the electric wire is one half of the maximum moving stroke of the sliding door. Therefore, the range of use of the movable pulley and the electric wire is reduced, the durability is improved, and the mounting space can be reduced. Further, if the guide member has at least half the length, the electric wire can be guided without trouble.

According to the second aspect of the invention, the pulley that rotates by stretching the electric wire can be rotatably held in the casing that can be easily disassembled or assembled, and the guide member is guided by the guide portion provided in the casing. The movable pulley can be smoothly reciprocated along the guide member. Further, since the casing and the urging member can be supported by using a support shaft or a supporting pin so that they can swing with respect to each other, no undue force is applied to the urging member when the movable pulley moves. The smooth reciprocating movement of this movable pulley can be achieved.

According to the third aspect, there is an advantage that the fixing member for fixing the guide member also serves as the urging member and the electric wire. Moreover, the guide member can be fixed to the door frame or the wall through the fixing member by a simple operation, the electric wire is not entangled with the biasing member, and the occurrence of troubles and troubles is reduced.

According to the present invention, since the guide member is made of a wire, the component itself is not bulky and inexpensive, and it is easy to install the guide member in a tensioned state and the mounting work is easy.

According to the fifth aspect, since the length of the guide member is short and the size of the entire apparatus can be made compact, the mounting state after the apparatus is installed is not unsightly.

According to claim 6, a pulling spring such as a pulling coil spring can be obtained at a low cost per se.
The cost of the device can be reduced.

According to claim 7, since a part of the electric wire is fixed by the fixture provided on the upper part of the sliding door, the electric wire in the sliding door is not pulled or loosened, so that the electric wire is stable in the sliding door. Can be retained.

According to the eighth aspect, since the movable pulley, the guide member, the biasing member and the like are housed and hidden inside the upper frame of the door frame, it is possible to provide not only an unsightly appearance power supply device but also those. The inconvenience that foreign matter enters the components can be eliminated.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a door open state according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of the closed state of FIG.

FIG. 3 is a perspective view of one fixing member.

FIG. 4 is a perspective view of the other fixing member.

FIG. 5 is a perspective view of a movable pulley.

FIG. 6 is a partially cutaway perspective view of a fixture.

FIG. 7 is a perspective view showing an example of a sagging prevention member.

FIG. 8 is a schematic explanatory view showing a first modification of the biasing member.

FIG. 9 is a schematic explanatory view showing a second modification of the biasing member.

FIG. 10 is a perspective view of a first modified example of the movable pulley.

FIG. 11 is a perspective view of a second modification of the movable pulley.

[Explanation of symbols]

 1 Sliding Door 2 Movable Pulley 3 Fixing Member 4 Fixing Member 5 Guide Member (Wire) 13 Electrical Equipment 21 Pulley 22 Casing 22a, 22b Casing 23 Biasing Member (Pulling Spring) C1, C2 Connector F Door Frame K Electric Wire

Claims (8)

[Claims] 1. A power feeding device for an electric device of a sliding door, wherein electric power is supplied to an electric device provided in the sliding door from a door frame side through an electric wire, and one is fixed to the sliding door or the electric device side above the sliding door. And the other end of which is fixed to the door frame side, a movable pulley that stretches the electric wire, a biasing member that biases the movable pulley in the direction in which the electric wire is stretched, and the movable pulley in the reciprocating direction of the sliding door. A power supply device for an electric device of a sliding door, comprising a guide member for guiding. 2. The movable pulley comprises a casing and a pulley rotatably supported in the casing. An electric wire is hung along a part of the outer periphery of the pulley, and the casing is guided by a guide member. 2. The power supply device for the sliding door to the electric device according to claim 1, further comprising: a guide portion that is provided and a biasing member support portion that supports one end portion of the biasing member. 3. Both ends of the guide member are supported and fixed by fixing members, one end of the urging member is supported by one fixing member, and a part of the electric wire is fixed by the other fixing member. The power supply device for the electric device of the sliding door according to claim 1 or 2. 4. The guide member is composed of a wire,
The power feeding device for the sliding door to the electric device according to claim 3, wherein the wire is supported and fixed in a tension state between two fixing members. 5. The guide member according to claim 1, wherein the guide member is arranged parallel to the reciprocating direction of the sliding door, and the length of the guide member is at least ½ of the maximum moving distance of the sliding door. 4. A power feeding device for the sliding door electric device according to any one of 4 above. 6. The biasing member is constituted by a tension spring,
6. The power feeding device for the sliding door to the electric device according to claim 1, wherein the pulling spring is arranged at a position facing the position where the electric wire is arranged with the movable pulley interposed therebetween. 7. The wire according to claim 1, wherein an electric wire is inserted into an opening formed in an upper portion of the sliding door, and a part of the electric wire is pressed and fixed by a fixture provided above the opening. A power supply device for the electric device of the sliding door described in. 8. A power feeding device for an electric device of a sliding door according to claim 1, wherein at least the movable pulley, the guide member and the urging member are housed inside an upper frame of the door frame. .