JPH05245017A - Electrical product connection method for head rest of attachable and removable type, and electrical product connection construction - Google Patents

Abstract

PURPOSE:To enable a head rest built in an electrical product, to be removed or attached, and enable a stay to be moved up and down with respect to a seat back. CONSTITUTION:The stay 24 of a head rest inserted into a head rest holder is dropped on a unit base 36 to be moved up and down under the head rest holder. Then, by contact between the first and second electrodes 20, 22 which are set in the stay 24 and the unit base 36 respectively, sections between harnesses 16, 18 are connected to each other removably or attachably. Besides, with the permanent magnet 44 of the unit base, the unit base 36 is connected to the stay 24 to follow up to moving up and down.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detachable headrest electrical component wiring method and electrical component wiring structure in which a headrest incorporating electrical components such as a motor and a speaker is detachably attached to the upper end of a seat back.

[0002]

2. Description of the Related Art For example, as represented by a seat of a passenger car or the like, a headrest for supporting a seated person's head is provided at the upper end of a seat back of a seat of various vehicles.
The headrest is generally attached to the upper ends of the seatbacks of the front seat and the rear seat, respectively, via two pipe-shaped support rods called stays.

As such a headrest, for example, a structure in which electric components such as a motor for moving the headrest itself back and forth or up and down and a speaker of a car component are built in is known.

The electric components in the headrest are generally electrically connected via a harness (wiring cord) to, for example, a controller disposed in the interior of the automobile or the like, and actuated by application of a current, a signal or the like from the controller. It is controllable.

Such a harness of electrical equipment is usually inserted into the stay and extended into the seat back through the stay in order to improve the appearance quality and safety of the seat. Then, in the seat back, the harness from the electric component and the harness from the controller are connected through the coupler to the electric component in the headrest,
Controllers outside the headrest are connected in a conductive manner.

[0006]

By the way, as a seat for a multipurpose automobile or the like, there is provided a so-called full-flat seat in which a seat back can be tilted backward to a substantially horizontal state. When the seat is fully flat, it is usually required to remove the headrest.

However, in a headrest having a built-in electric component such as a motor and a speaker, the harness is inserted into the stay and is connected to the harness from the controller via the coupler in the seat back. The connection cannot be released easily. Therefore, in the known configuration, the headrest having the electric component built therein cannot be easily attached and detached, which makes it difficult to fully flatten the seat having such a headrest.

Therefore, for example, a stay of the headrest and a headless holder at the upper end of the seat back are provided with a pair of electrodes which can contact each other, and by contacting the electrodes,
A configuration is known in which a harness on the electrical component side and a harness on the controller side can be connected. According to this structure, the pair of electrodes, that is, both harnesses can be easily attached and detached easily, so that the headrest can be detached from the upper end of the seat back.

Therefore, a seat having a headrest with a built-in electrical component can be made fully flat, and a full-flat seat can be provided with multiple functions.

However, in the known structure, since the pair of electrodes are provided on the stay and the headrest holder, the vertical position of the stay with respect to the headrest holder is likely to be limited to one position. Therefore, in the seat in which the height of the headrest can be adjusted by raising and lowering the stay with respect to the seatback, the known configuration can no longer be used, and the electrical components cannot be easily incorporated into the full flat seat.

According to the present invention, there is provided an electrical component wiring method for a detachable headrest that enables detachable connection between harnesses on both the electrical component side and the controller side, and also enables lifting and lowering of a stay with respect to a seat back, and an electrical component wiring structure. It is intended to be provided.

[0012]

In order to achieve this object, according to the method for connecting the electrical components of the detachable headrest of the present invention, the stay of the headrest inserted into the seatback through the headrest holder is the headrest holder. It is dropped on a unit base that can be raised and lowered below. Then, by contact between the stay and the corresponding electrodes of the unit base, the harness of the electric component in the headrest and the harness in the seat back are connected,
The unit base is connected by the suction means of the unit base so as to follow up and down of the stay.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, in a detachable headrest electrical component wiring structure 10 according to the present invention, an electrical component 12 such as a motor or a speaker is built in a headrest 14, and a wiring cord for the electrical component is provided. The so-called harness 16 and the harness 18 in the seat back can be connected to each other via the first and second electrodes 20 and 22.

As shown in FIG. 2, the headrest 14 is formed, for example, with two stays 24 extending downward. As can be seen from FIG. 3, the stay 24 is formed in a pipe shape, and the electric component 12, for example, the harness 16 from the motor is inserted into the stay. In addition, as shown in FIG. 1, the lower end surface 24a of the stay is
For example, it is formed as a flat surface.

Here, in the present invention, FIG.
As shown in, the first electrode 20 connected to the harness 16 of the motor (electrical component) 12 is provided at the lower end of the stay 24, for example. As you can see in Figure 1, for example,
Insulator 26 molded into a prescribed shape from an insulating material such as resin
Is fitted inside the lower end of the stay 24, and by the insulator,
A first electrode 20 is supported.

The first electrode 20 has, for example, a contact end at the lower end.
It is formed in a rod shape having 20a, and with respect to the insulator 26,
The stay 24 is supported so as to be movable in the axial direction, that is, in the vertical direction. The first electrode 20 is biased by the biasing means 28 in the protruding direction from the lower end of the stay.

As the biasing means 28, for example, a compression coil spring wound around the first electrode 20 between the bottom surface of the recess 26a of the insulator 26 and the contact end 20a can be used. As can be seen from FIG. 1, the first electrode 20 stays at the contact end 20a under the biasing force from the biasing means (compression coil spring).
The protrusion 24 is formed to have a length that protrudes from the lower end surface of the electrode 24. For example, the caulking 20b provided on the upper end of the electrode prevents the contact end from excessively protruding from the lower end surface of the stay.

The first electrode 20 is formed of a conductor such as iron or copper, and the harness 16 from the motor 12 is connected and fixed to the upper end of the electrode by soldering or the like.

Further, as shown in FIG. 2, a pair of headrest holders 30 into which the stays 24 of the headrest can be inserted.
Is provided at the upper end of the seat back 32 corresponding to the stay.

The headrest holder 30 is provided with, for example, locking means (not shown), and the operating piece 31 of the locking means is provided.
By operating the stay 24 to the headrest holder.
Can be locked and unlocked. The headrest holder 30 is generally attached by fitting to a holder guide 34 provided at the upper end of a seat back frame (not shown) (see FIGS. 3 and 4).

In such a structure, the headrest 14 is attached to the upper end of the seat back 32 by inserting the stay 24 into the insertion hole of the headrest holder 30 and locking the stay with the locking means of the headrest holder. Further, by unlocking the stay 24 by the locking means of the headrest holder 30, the stay can be slid with respect to the headrest holder, and the height of the headrest 14 can be adjusted or the headrest can be removed from the seatback 32.

The structure of the headrest holder 30 is known, and the structure itself is not the purpose of the present invention.
Not explained in detail.

As can be seen from FIGS. 1 and 3, in the present invention, the unit base 36 is disposed below the headrest holder 30, and the second electrode which can contact the first electrode 20 is provided. The electrode 22 is provided on the unit base.

For example, the upper end of the base guide 38 is fixed to the holder guide 34. The base guide 38 is formed, for example, with a pair of vertically extending guide holes 40, and the unit base 36 is guided along the guide holes by the mounting screws 42 screwed through the guide holes. It is mounted so that it can be raised and lowered.

Further, in the present invention, the unit base 36 is provided with the suction means 44 capable of sucking the stay 24. As the attracting means 44, for example, a ring-shaped permanent magnet corresponding to the diameter of the stay 24 can be used, and the permanent magnet is embedded in the unit base 36 at a position corresponding to the stay.

Then, the second electrode 22 is attached inside the ring of the permanent magnet (adsorption means) 44 via the insulator 46 made of an insulating material such as resin.

The second electrode 22 is provided at a position lower than the upper surfaces of the permanent magnet 44 and the insulator 46, for example. That is, the contact end 22a of the second electrode 22 is connected to the insulator 46
Is formed so as to be the bottom surface of the partial recess.

As shown in FIG. 5, the second electrode 22 is formed, for example, in a substantially L shape by bending, and is extended from the unit base 36 at an extension end thereof. The harness 18 is connected and fixed by solder or the like.

In the detachable headrest electrical component wiring method according to the present invention, the stay 24 is a headrest holder.
As shown in FIG. 6, the unit base 36 is inserted into the unit base 36.
Be dropped into. At this time, the unit base 36 stands by in the lowered position with respect to the base guide 38. The lower end surface 24a of the stay is the unit base permanent magnet.
When it comes into contact with 44, it is attracted under the attraction force of the permanent magnet, that is, the magnetic force, and the stay 24 and the unit base 36 are connected.

At the same time, the first electrode of the stay
20 is the second electrode 22 under the biasing force from the biasing means 28.
And the first and second electrodes, that is, the motor harness 16 and the controller harness 18, are connected so as to be electrically conductive.

Here, the unit base 36 is mounted via the guide hole 40 of the base guide so as to be able to move up and down along the guide hole. That is, the unit base 36 is
The stay 24 can be moved up and down within the range of the guide hole 40 without releasing the contact between the second electrodes 20 and 22.

Therefore, by changing the lock position of the stay 24 with respect to the headrest holder 30, the seat back is changed.
Even if the height of the headrest 14 with respect to 32 is adjusted, the first and second electrodes 2 are irrespective of the lock position of the stay.
The contact state between 0 and 22 is maintained.

When the lock of the headrest holder 30 is released, the headrest 14 is pulled up together with the stay 24, and the unit base 36 is guided by the guide hole 40 of the base guide.
When the upper end of the unit base is reached, for example, as shown in FIG. 4, the permanent magnet 44 contacts the lower end of the headrest holder 30 to prevent the unit base from rising relative to the base guide 38. When the headrest 14 is further pulled up under the force against the magnetic force of the permanent magnet 44, the stay 24 separates from the permanent magnet and the first and second electrodes 20, 22 are
Contact is released and the headrest 14 is seated back
Removed from 32.

As described above, according to the present invention, the stay 24 can be brought into contact with and released from the first and second electrodes 20 and 22 by inserting and withdrawing the stay 24 into and from the headrest holder 30. The headrest 14 can be removed from the. Therefore, the headrest 14 with the built-in motor 12 can be mounted even on a full-flat seat that requires the removal of the headrest 32, and the range of use of such a headrest is sufficiently expanded.

Since the headrest 14 can be attached and detached by inserting and pulling out the stay 24 into and from the headrest holder 30, the attaching and detaching work can be easily performed.

Further, by the attraction of the stay 24 by the permanent magnet 44, the unit base 36 having the second electrode 22 is moved up and down following the stay. Therefore, without restricting the lock position of the stay 24 with respect to the headrest holder 30, the electric component 12 such as a motor can be built in the headrest whose height of the headrest 14 can be adjusted. The range of use is expanded sufficiently.

Further, since the headrest 14 can be removed from the seat back 32, the pillow boots around which the stay 24 is wound, the seat cover covering the seat back, and the like can be easily attached and detached, depending on the preference of the seated person. The seat can be fully decorated.

Further, since it is sufficient to provide the first electrode 20 on the stay 24 and the second electrode 22 and the permanent magnet 44 on the unit base 36, the structure is not complicated and the workability is lowered. Can be avoided.

Here, in the embodiment, the first electrode 20 is movable in the vertical direction with respect to the fixed second electrode 22, and the second electrode is moved under the biasing force from the biasing means 28. Although it is biased in the direction, the present invention is not limited to this, and both the first and second electrodes may be fixed.

However, for example, if the first electrode 20 is movable and can contact the second electrode 22 under a biasing force, the first electrode is always pressed against the second electrode and Even if an error occurs during processing, assembling of the first and second electrodes, or during processing of the stay 24, the error can be absorbed within the moving range of the first electrode. Therefore, the contact state between the first and second electrodes 20 and 22, that is, the connection state between the harnesses 16 and 18 can always be ensured.

Further, in the embodiment, the first electrode 22
Is biased toward the second electrode under the biasing force from the biasing means 28, but it is sufficient if the first and second electrodes can contact each other under the biasing force. On the contrary, the second electrode 22 may be biased toward the first electrode.

By the way, in the embodiment, the second electrode
22 is formed as the bottom surface of the recess lower than the permanent magnet 44 and the insulator 46. According to such a configuration, as shown in the figure, in a configuration in which a plurality of electrodes are provided on the stay 24 on one side, for example, even if foreign matter or the like made of a conductor is attracted to the permanent magnet 44, foreign matter or the like to the electrodes Because contact is blocked,
A short circuit between the electrodes can be sufficiently prevented.

Further, in the embodiment, the contact of the permanent magnet 44 with the headrest holder 30 causes the base guide
Prevents the unit base 36 from rising against the 38,
The configuration is not limited to this, and the unit base may be prevented from rising only by engaging the mounting screw 42 with the upper edge of the guide hole 40.

However, if the permanent magnet 44 is brought into contact with the headrest holder 30, even if the stay 24 is pulled out by the force that opposes the magnetic force of the permanent magnet, the force, that is, the pulling force, is the base guide 38 and the mounting screw 42. Since it is not concentrated on the base, deformation of the base guide and breakage of the unit base 36 can be reliably prevented.

Although a permanent magnet is embodied as the attraction means 44, it is sufficient if the stay 24 can be attracted, and the invention is not limited to this, and the attraction means may be formed by other means.

However, if the attracting means 44 is formed of a permanent magnet, the stay 24 can be attracted and separated easily, so that the unit base 36 can be downsized and the entire wiring structure can be obtained without complicating the structure. Reasonable price reduction.

Although the permanent magnet 44 is illustrated as a ring shape, the permanent magnet 44 is not limited to this shape as long as it has a shape capable of attracting the stay 24.

However, if the attraction means 44 is formed from a ring-shaped permanent magnet corresponding to the diameter of the stay 24, attraction can be performed over the entire circumference of the lower end surface 24a of the stay, so that the unit base 36 can be connected to the stay. Certainly obtained.

Further, in the embodiment, a motor is illustrated as the electric component 12, but the electric component 12 is not limited to this, and it goes without saying that a speaker or the like may be used as the electric component.

Further, although the stay 24 on one side is embodied as a structure having two pairs of electrodes, this is merely an example of the present invention and is not limited to this. For example, a configuration in which a pair of electrodes is arranged on both of the pair of stays 24, or a large number of electrodes may be arranged on both of the pair of stays, respectively. With such a configuration, the number of electric components 12 built in the headrest 14 is not limited, and various electric components can be sufficiently incorporated.

Although the electrical component wiring method and the electrical component wiring structure 10 of the detachable headrest according to the present invention are suitable for automobile seats, the invention is not limited to this. For example, seats for trains, airplanes, ships, etc. It can also be applied to detachable headrests such as home relaxing seats.

The above-mentioned embodiments are for explaining the present invention and do not limit the present invention in any way.
It goes without saying that the present invention includes all those which are modified or modified within the technical scope of the present invention.

[0054]

As described above, according to the electrical component wiring method of the detachable headrest according to the present invention, the wiring between the electrical components and the harness of the controller and the disconnection of the wiring can be performed by inserting and pulling out the stay in the headrest holder. Since this can be done, the headrest can be removed from the seat back. Therefore, even a full flat seat that requires the removal of the headrest can be equipped with a headrest with built-in electrical components, and the range of use of such a headrest can be sufficiently expanded.

Since the headrest can be attached / detached and the harness can be connected / disconnected by inserting / removing the stay into / from the headrest holder, the attachment / detachment work is simplified.

Further, since the unit base having the second electrode is moved up and down by adhering the stay by the adsorbing means, the electric components can be built in the headrest whose height can be adjusted. From this point as well,
The range of use of such a headrest is sufficiently expanded.

Further, since it is sufficient to provide the first electrode on the stay and the second electrode and the suction means on the unit base, the structure is not complicated and the workability is not deteriorated.

Further, if the second electrode is formed as the bottom surface of the partial recess of the insulator, the foreign matter or the like made of a conductor is prevented from coming into contact with the electrode even if the foreign matter or the like is attracted to the attraction means. A short circuit between the electrodes can be sufficiently prevented.

If the attraction means is a ring-shaped permanent magnet, attraction can be obtained over the entire circumference of the lower end surface of the stay, so that the unit base can be reliably connected to the stay and the structure is complicated. In addition, the unit base can be downsized and the overall cost of the wiring structure can be sufficiently reduced.

If the unit base is prevented from excessively rising by abutting against the headrest holder, the stay pull-out force is not concentrated on the attachment point of the unit base to the target member, so that the unit base is not damaged. It can be surely prevented.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view taken along line AA of FIG. 3 of the electrical component connection structure of a detachable headrest according to the present invention before connection.

FIG. 2 is a schematic perspective view of a seat to which a detachable headrest is attached.

FIG. 3 is a schematic perspective view of an electrical component connection structure of a detachable headrest.

FIG. 4 is a vertical cross-sectional view of the electrical component wiring structure of the detachable headrest similar to FIG. 1 when wiring is performed in the raised position.

5 is a vertical cross-sectional view of the electrical component connection structure of the detachable headrest taken along line BB in FIG.

FIG. 6 is a vertical cross-sectional view of the electrical component connection structure of the detachable headrest similar to that of FIG. 1 at the time of connection in the lowered position.

[Explanation of symbols]

 10 Electrical component wiring structure for detachable headrest 12 Electrical component (motor) 14 Headrest 16, 18 Harness 20, 22 First and second electrodes 24 Stay 26 Insulator 28 Biasing means (compression coil spring) 30 Headrest holder 32 Seat back 36 Unit base 44 Adsorption means (permanent magnet) 46 Insulator

Claims (6)

[Claims] 1. A headrest stay inserted into a seat back via a headrest holder is dropped onto a unit base that can be raised and lowered below the headrest holder, and the corresponding electrodes of the stay and the unit base are brought into contact with each other to form a headrest. The electrical component of the detachable headrest that connects the harness of the electrical components inside and the harness in the seat back, and also attaches the lower end of the stay to the adsorption means of the unit base so that the unit base can be connected to follow up and down of the stay. Connection method. 2. The electrical component wiring structure of a detachable headrest for connecting a harness of an electrical component built into a headrest and a harness of a controller side wired in a seat back, wherein the harness of the electrical component is connected to the harness. The first electrode is supported by the insulator at the lower end of the stay of the headrest, and the suction means capable of sucking the stay and the second electrode supported by the insulator so as to come into contact with the first electrode. And a unit base having an upper and a lower portion of a headrest holder at the upper end of the seat back into which the stay is inserted so that the unit base can be moved up and down in the axial direction of the stay. The feature is that the pair of harnesses can be detachably connected by the contact between them and the unit base can be moved up and down by following the stay. The electrical component wiring structure of the detachable headrest to be considered. 3. In the electrical component wiring structure of a detachable headrest for connecting a harness of an electrical component built into a headrest and a harness of a controller side wired in a seatback, a harness of the electrical component is connected. The first electrode is movably supported in the axial direction of the stay at the lower end of the stay of the headrest by the insulator, and is biased toward the lower end of the stay under the biasing force of the biasing means. A unit base having an adsorption means capable of adsorbing and a second electrode supported by an insulator so as to be able to contact the first electrode, below the headrest holder at the upper end of the seat back where the stay is inserted, The first and second electrodes are provided so as to be able to move up and down in the axial direction of the stay, and the stay is attracted by the attracting means and the biasing force from the biasing means is applied. By contact between
An electric component wiring structure for a detachable headrest, characterized in that a pair of harnesses are detachably connected and the unit base can be moved up and down by following a stay. 4. The electrical component wiring structure for a removable headrest according to claim 2, wherein the contact end of the second electrode is provided as a bottom surface of a partial recess of the insulator. 5. The electric component wiring structure for a removable headrest according to claim 2, wherein the attracting means is a ring-shaped permanent magnet corresponding to the diameter of the stay. 6. The detachable headrest electrical component wiring structure according to claim 2, wherein the unit base abuts against the headrest holder at the rising limit position.