JPH0411552Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an operating handle device for a reclining mechanism that adjusts the inclination of a backrest.

"Conventional technology" As a conventional technology, for example, Japanese Patent Publication No. 58-52645
There is something disclosed in the publication No.

That is, the same publication discloses a reclining device that has a structure in which the backrest tilts in either direction depending on the direction of rotation of an operating shaft, and a handle that projects laterally is provided at the end of the operating shaft. has been done.

``Problems that the invention aims to solve'' However, with such conventional technology, the handle protrudes sideways, which not only looks bad, but also causes parts of the person's body or seat belt to get caught. There was a problem that there was.

The present invention was developed by focusing on these conventional problems, and provides an operation handle device with a reclining mechanism that allows the handle to be stored at all times and pulled out for use only when needed. is intended to provide.

``Means for Solving the Problems'' The gist of the present invention to achieve such an objective is that, in an operating handle device for a reclining mechanism that adjusts the inclination of a backrest, the reclining mechanism is operated in the rotational direction of the operating shaft. The swinging arm supporting the backrest is tilted in either direction, and the storage case is installed by recessing into the side of the seat, while the end of the handle that can be retracted into the storage case is attached to the end of the operating shaft. the handle is screwed into the storage case so that it can move in the axial direction of the operating shaft and retract into the storage case when rotated, and an engaged portion is attached to the distal end of the operating shaft. While providing
The operating handle device for a reclining mechanism is characterized in that the handle is provided with an engaging portion that engages and disengages from the engaged portion when the handle is protruded or retracted.

``Operation'' When the backrest is at rest, the handle is recessed into the storage case on the side of the seat, and the area near the handle is smooth with no protruding parts.

To adjust the inclination of the backrest, rotate the handle and pull it out of the storage case so that it protrudes outside the storage case. The engaging portion of the handle engages with the engaged portion of the tip of the operating shaft. Hold this handle and rotate it.

The reclining mechanism has a structure in which the swinging arm supporting the backrest tilts in either direction depending on the direction of rotation of the operating shaft, so when the handle rotates and the operating shaft rotates, the arm tilts in either direction depending on the direction of rotation of the operating shaft. The swinging arm swings back and forth, changing the angle of the supported backrest.

When the handle body stops rotating, the backrest is also held in that position. After stopping, the engaging portion of the handle is disengaged from the engaged portion of the tip end of the operating shaft, and the handle is rotated to be retracted into the storage case.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

1 to 5 show an embodiment of the present invention.

The seat 10 includes a backrest 11 on a seat 12, and the backrest 11 is pivotally supported on the seat 12 via a reclining mechanism 20 that adjusts its inclination.

A side finisher 15 is fixed to the side of the seat 12, and the rear end of the side finisher 15 covers the reclining mechanism 20 and the side of the seat 12.

In the reclining device 20, an operation shaft 22 for operating a mechanism section 21 (details of which are not shown) extends horizontally in a substantially horizontal direction, and a handle 30 is attached to the tip of the operation shaft 22.

A swinging arm 23 extends upward from the reclining mechanism 20, and a lower end portion of the backrest 11 is fixed to the swinging arm 23. The swing arm 23 tilts either forward or backward depending on the direction of rotation of the operating shaft 22.

A cylindrical storage case 16 is provided in a portion covering the reclining mechanism 20 of the side finisher 15.
is formed as an invagination. A thread groove 17 is threaded on the inner peripheral surface of the storage case 16.A hollow operating shaft 22 is provided in the center of the storage case 16.
is provided protrudingly, and an engaged portion 24 is provided at the tip of the operating shaft 22. The engaged portion 24 is formed by forming a circumferential gear 26 on the peripheral edge of a disc 25. A handle 30 is attached to the tip of the operating shaft 22 so as to fit into the storage case 16.

The handle 30 has a cylindrical wall 3 of a handle body 31.
A thread 33 is formed on the outer peripheral surface of the handle body 31, and the thread 33 of the handle body 31 is adapted to be screwed into the thread groove 17 of the storage case 16. A fitting shaft 34 that fits inside the hollow operating shaft 22 is protruded from the center of the handle body 31 .

A flange portion 35 is formed at the tip of the cylindrical wall 32 of the handle body 31 toward the center.
The flange portion 35 is provided with an engaging portion 36 . The engaging portion 36 is configured to engage with and disengage from the circumferential gear 26, which is the engaged portion 24, when the handle body 31 moves in and out.

A latching recess 38 is formed at the outer peripheral edge of the circular side portion 37 of the handle body 31 . The handle body 31 is urged in a direction to protrude from the storage case 16 by a spring member 39 provided between the inner surface of the circular side portion 37 and the tip of the operating shaft 22 .

Next, the action will be explained.

The handle 30 is normally operated as shown in FIG.
The entire handle body 31 is a side finisher 15
It is housed in a storage case 16.

When adjusting the angle of the backrest 11, the operating shaft 22 is rotated via the handle 30 in order to release the reclining mechanism 20.

As it is, it is not possible to put your hand on the handle 30 and apply force, so the side part 3 of the handle 30
7, and rotate it counterclockwise in FIG. 4 about the fitting shaft 34. The handle body 31 moves in the axial direction of the operating shaft 22 while the thread 33 is screwed into the thread groove 17 of the storage case 16.

The handle body 31 has its engaging portion 36 engaged with the circumferential gear 26, which is the engaged portion 24, and the cylindrical wall 32 protrudes from the storage case 16 (the state shown in FIG. 5).

The cylindrical wall 32 of the handle body 31 can be grasped and rotated by hand. In addition, the spring member 39 allows
Since the engaging portion 36 on the handle 30 side is biased to engage the engaged portion 24 on the operating shaft 22 side, the engaging portion 36 comes off from the engaged portion 24 while the handle 30 is rotating. Never.

Rotate the handle 30. Handle body 31
When the operation shaft 22 rotates, the swing arm 23 swings by the mechanism section 21. Since the swing arm 23 tilts either forward or backward depending on the direction of rotation of the operating shaft 22, the inclination of the backrest 11 changes.

When the backrest 11 reaches a desired angle, the handle body 31 is released and rotation is stopped, the swing arm 23 is held at that angle, and the inclination of the backrest 11 is set.

When the adjustment of the inclination of the backrest 11 is completed, move the handle 31 against the biasing force of the spring member 39 to the operating shaft 2.
2 in the axial direction and rotate clockwise in FIG. 4. The thread 33 of the handle body 31 is screwed into the thread groove 17 of the storage case 16,
The entire handle body 31 is inserted into the storage case 16. The handle 30 is recessed and has no portion protruding from the side finisher 15.

"Effects of the invention" According to the operating handle device for a reclining mechanism according to the present invention, the handle, which is used to release the reclining mechanism, is normally retracted and stored, and when necessary, the handle is pulled up and rotated. Because there is nothing protruding near the handle, it looks good, and
There is no chance of catching your body or seat belt.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a perspective view of a seat equipped with an operating handle device, FIG. 2 is an exploded perspective view of essential parts of the operating handle device, and FIG. 4 is a front view of the same, and FIG. 5 is an explanatory view of the state when the operating handle device is protruded. 10... Seat, 11... Backrest, 12... Seat, 15... Side finisher, 16... Storage case, 20... Reclining mechanism, 21...
Mechanism section, 22... operating shaft, 23... swinging arm,
24...Engaged portion, 30...Handle, 31...
Handle body, 36...engaging portion.

Claims (1)

[Claim for Utility Model Registration] In an operating handle device for a reclining mechanism that adjusts the inclination of a backrest, the reclining mechanism has a structure in which a swinging arm supporting the backrest tilts in either direction depending on the rotational direction of an operating shaft. A storage case is recessed into the side of the seat, and a handle that can be retracted into the storage case is attached to the end of the operating shaft, and when the handle is rotated, the operating shaft is moved. Screwed into the storage case so as to be movable in the axial direction and retractable from the storage case, and an engaged portion is provided at the tip of the operating shaft;
An operating handle device for a reclining mechanism, characterized in that the handle is provided with an engaging portion that engages and disengages from the engaged portion when the handle is protruded or retracted.