JPH0242207Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an armrest unlocking device rotatably provided on the side of an automobile seat.

(Prior Art) Conventionally, as this type of armrest unlocking device, a rotary cylinder fixed to the armrest body side is rotatably inserted and supported in a fixed cylinder fixed to the seat side, and these rotary cylinders and fixed cylinder are connected to each other. A spiral spring is tightly fitted on the outer circumferential surface of the rotary cylinder, extending between the two, and the compressive force of the spring against the rotary cylinder and the fixed cylinder prevents the free rotation of the rotary cylinder with respect to the fixed cylinder. one end of the spring is locked to the armrest body;
and locking the other end of the spring to a link interlockingly connected to an operating lever provided on the armrest main body so as to be swingable, and expanding the spring radially outward by swinging the lever;
An armrest unlocking device has been proposed which releases the fixation of the rotary cylinder to the fixed cylinder.

(Problem to be Solved by the Invention) By the way, when assembling the lock release device as described above, one end of the spiral spring is first latched to the armrest body, and then the other end of the spring is moved by the operation described above. It seems to be locked to the link connected to the lever,
Therefore, due to manufacturing errors of the spring, the other end position of the spring, that is, the locking position to the link, cannot be specified, and as a result, the position of the operating lever is not determined to the predetermined designed position, resulting in poor design and operability. There was a problem above.

Further, in order to solve the above problem, it is conceivable to use a high-precision spiral spring, but in this case, the spring becomes very expensive, leading to an increase in manufacturing costs. It is.

The present invention was devised in view of the above-mentioned problems, and its purpose is to accurately position the locking position of the spiral spring to the link without increasing production costs, and to operate the operating lever. An object of the present invention is to provide an armrest unlocking device for an automobile that can be reliably placed at a predetermined designed position.

(Means for Solving the Problem) The unlocking device for an armrest for an automobile according to the present invention is constructed as shown in FIG.
The spiral spring 8 is inserted into the fixed cylinder 4 fixed to the seat side so as to be freely rotatable, and the spiral spring 8 is tightly fitted on the outer peripheral surfaces of the rotating cylinder 3 and the fixed cylinder 4, spanning between them. Due to the compressive force on the cylinders 3 and 4, the rotating cylinder 3 is compressed against the fixed cylinder 4.
One end 8a of the spring 8 is locked to the armrest main body 1, and an operating lever 9 is provided on the main body 1 so as to be able to swing freely. The spring 8 is connected to the end 8b via a link 10, and the spring 8 is expanded radially outward by a swinging operation of the lever 9, thereby releasing the fixation of the rotary cylinder 3 to the fixed cylinder 4. In the lock release device, after connecting one end 8a of the spiral spring 8 to the other end 8b of the spring 8 to the link 10, the one end 8a of the spring 8 can be locked at any position on the armrest main body 1. The present invention is characterized in that a locking means 11 is provided.

(Function) When assembling the lock release device, the other end 8 of the spiral spring 8 is attached in advance to the end of the link 10 connected to the operating lever 9.
After that, one end 8a of the spring 8 is locked.
is locked at an arbitrary position on the armrest main body 1 via the locking means 11. In this way, the locking position of the spring 8 to the link 10 is accurately determined, and accordingly, the link The operating lever 9 connected to the
It is precisely placed in a predetermined design position.

(Example) The lock release device for an armrest for an automobile according to the present invention will be described below with reference to an example shown in the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes the main body of an armrest that is rotatably supported on the side of an automobile seat (not shown), and is formed into a roughly rectangular box shape, and the longitudinal direction of this main body 1 is A support plate 2 is integrally attached to the inner surface of one side, and a rotary cylinder 3 is integrally fixed to the support plate 2 facing laterally.

Further, reference numeral 4 denotes a fixed cylinder that is rotatably supported on the rotary cylinder 3, and has a small diameter stepped portion 4a that can be loosely inserted into the rotary cylinder 3, and has a diameter that is approximately the same as the outer diameter of the rotary cylinder 3. It has a large diameter stepped portion 4b, and the small diameter stepped portion 4a.
a square shaft portion 4c on the tip side thereof, and the large diameter stepped portion 4a.
A lid body 4d is provided on each side, and the small diameter stepped portion 4a of the fixed cylinder 4 thus formed is loosely inserted into the rotating cylinder 3 such that the square shaft portion 4c protrudes outward from the armrest main body 1. , the square shaft portion 4c is inserted into the square hole 6a of the bracket 6 attached to the frame 5 of the seat, and in this state, the fixing bolt 7 is inserted from the lid 4d side of the fixing tube 4 into the inside of the bracket 6. By fixing the rotary cylinder 3 through the fixed cylinder 4, the rotary cylinder 3 is rotatably supported by the fixed cylinder 4 so that the large diameter stepped portion 4b of the fixed cylinder 4 is flush with the outer peripheral surface of the rotary cylinder 3.

Then, a spiral spring 8 is tightly fitted into the outer peripheral surfaces of the large-diameter stepped portion 4b of the rotary cylinder 3 and the fixed cylinder 4, so as to straddle them. The compressive force applied to the cylinder 4 prevents the rotating cylinder 3 from freely rotating with respect to the fixed cylinder 4.

Further, one winding end 8a of the spring 8 is locked to the support plate 2, and an operating lever 9 is attached to the side of the armrest main body 1 opposite to the rotary tube 3 so as to be freely swingable, and connected to the lever 9. Link 1
0, the other winding end 8b of the spring 8 is locked, and the spring 8 is rotated by swinging the lever 9.
By pulling the other end 8b, the diameter of the spring 8 is expanded radially outward, and the compressive force of the spring 8 against the rotating cylinder 3 is released, and the rotating cylinder 3 and the fixed cylinder 4 are separated. It is as if the fixation of the object is released.

In the armrest unlocking device as described above, after connecting one end 8a of the spiral spring 8 to the other end 8b of the spring 8 to the link 10, the one end 8a of the spring 8 is connected to the armrest main body 1. A locking means 11 that can be locked to the plate 2 is provided.

Specifically, as shown in detail in FIGS. 3 and 4, the locking means 11 includes a holding portion 11a capable of holding one end 8a of the spring 8;
A locking fitting 11 is formed of fixing pieces 11b, 11b that extend integrally outward from both ends of the holding portion 11a, and thus connects the other end 8b of the spring 8 to the link 10. After the connection, the holding part 11a of the locking metal fitting 11 is applied to one end 8a of the spring 8, and each of the fixing pieces 11b is fixed to the support plate 2 by welding means or the like. One end 8
a is locked and fixed to the support plate 2.

In FIG. 1, reference numeral 12 denotes a plastic cover that fits over the opening side of the armrest main body 1.
Reference numeral 13 denotes a spacer interposed between the armrest main body 1 and the seat-side bracket 6.

(Effects of the Invention) As explained above, in the automobile armrest unlocking device according to the present invention, the link 10 is connected to one end 8a of the spiral spring 8 and the other end 8b of the spring 8 is connected to the operating lever 9. Since one end 8a of the spring 8 is provided in a locking means 11 that can be locked at any position on the armrest main body 1, after the other end 8b of the spring 8 is connected to the link 10, It becomes possible to lock one end 8a of the spring 8 to the armrest main body 1 using the locking means 11, and therefore, the other end 8b of the spiral spring can be locked without increasing manufacturing costs as in the conventional case. by accurately positioning the locking position of the lever to the link 10, and then locking the operating lever 9
This made it possible to reliably place the parts at predetermined design positions.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the lock release device of the present invention, Fig. 2 is a sectional view of the same lock release device, and Fig. 3 is a cross-sectional view of the lock release device of the present invention.
The figure is an enlarged side view of the same main part, Figure 4 is Figure 3 X-X
It is a sectional view of a line. 1... Armrest body, 3... Rotating tube, 4... Fixed tube, 8... Spiral spring, 8a... One end, 8
b...Other end, 9...Operation lever, 10...Link, 11
...Locking means.

Claims (1)

[Scope of utility model registration request] A rotary cylinder 3 fixed to the armrest main body 1 is freely rotatably inserted into a fixed cylinder 4 fixed to the seat, and a spiral spring 8 is tightly fitted from the outer peripheral surface of the fixed cylinder 4 to the outer peripheral surface of the rotary cylinder 3. The spring 8 prevents the rotating barrel 3 from rotating relative to the fixed barrel 4, and one end 8a of the spring 8 is locked to the armrest body 1, while the operating lever 9 is attached to the armrest body 1. The lever 9 and the other end 8b of the spring 8 are connected via a link 10, and the rotating barrel 3 is fixed to the fixed barrel 4 by expanding the diameter of the spring 8 by operating the operating lever 9. A lock release device configured to release the lock,
A locking means 11 is provided at one end 8a of the spiral spring 8 to lock the one end 8a of the spring 8 to the armrest main body 1 after the other end 8b of the spring 8 is connected to the link 10. An armrest unlocking device for automobiles.