JP2001321243A - Foldable armrest - Google Patents

Abstract

PROBLEM TO BE SOLVED: To foam pads integrally with the frame and the surface material of an armrest by eliminating work holes for the frame assembly from the surface material, and to simplify the rotation stopper mechanism of the armrest. SOLUTION: The armrest comprises a sub-frame shaft 35 of a sub-armrest supported to be oscillated in the upper/lower directions at a main armrest shaft 22 projecting from the side of a seat back in the horizontal direction, a main frame shaft 28 of a main armrest, extended and connected to the top of the sub-frame shaft 35 coaxially and oscillated between the horizontal position and vertical position in the left/right directions, and a clasping type stopper 14 for stopping the rotation of the sub-frame shaft 35 at the standing position and the forward tilting position with a pair of pins 39 and 39. The pins 39 and 39 project from an armrest bracket 11 to clasp the sub-frame shaft 35 in contact with the outer surface of the sub-frame shaft 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a foldable armrest for use in a vehicle seat.

[0002]

BACKGROUND OF THE INVENTION Armrests of this kind are divided into a main armrest and a sub-armrest, which are made to be able to lean forward from the side of the seat back and can be raised on that side of the seat back It is assembled in a double rotating structure where it is made.
Since the armrest is made collapsible with such a double rotation configuration, the padding is cumbersome on the main armrest because the skin requires working holes for frame assembly after padding. In addition, the mechanism for preventing the armrest from rotating forward and backward is complicated.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a foldable structure in which a pad can be easily foamed integrally with the frame and the skin by omitting a work hole for assembling the frame from the skin, and a detent mechanism can be simplified. In providing a possible armrest.

[0004]

Means corresponding to the object and the operation thereof
An armrest bracket having a main armrest shaft protruding horizontally on the side of the seat back, and being fixedly attached to the side of the seatback; and
The sub-frame shaft of the sub-armrest, which is swingably supported on the shaft in the vertical direction, is coaxially extended and connected to the tip of the sub-frame shaft, and has a horizontal position in the left-right direction. The main frame shaft of the main armrest that can be swung to the vertical position and its main armrest so that it can be contacted with the outer periphery of its sub-frame shaft.
Using a pair of pins that protrude from the main armrest bracket in the radial direction of the shaft downward and forward and upward and rearward as appropriate from the armrest bracket, and position the sub-frame shaft in the upright position And a pinch-type stopper for preventing rotation of the main frame shaft at the forward position, and without passing the main frame shaft through the sub frame shaft at the tip of the sub frame shaft. By connecting the root of the shaft, the work hole for assembling the frame from the skin is omitted, and the pinch type stopper is used to stop the vertical rotation of the sub-frame shaft, and the sub-frame shaft Connect the bolt connecting the main frame shaft to the stopper
The pin can also be used as a pin to prevent rotation of the main frame shaft in the left-right direction.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to describe the foldable armrest of the present invention on the basis of a specific example shown in the drawings, FIGS. 1 to 7 are used for a driver seat 40 of a wagon. 10 shows a foldable armrest embodiment 10 of the present invention, and the foldable armrest 10 is divided into a main armrest 12 and a sub-armrest 13 and the main armrest 12 and the sub-armrest 13 Is forwardly moved forward from the side 43 of the seat back 42 of the driver seat 40, and
The seat back 42 is assembled in a double rotatable structure that is raised and folded on its side 43. More specifically, the armrest 10
The main armrest 12 includes a main armrest frame 15, a main pad 16, and a main armrest.
Assembled from trim cover 17, while its sub-armrest 13 is attached to sub-armrest frame 1
8 and a split structure to be assembled from the resin garnish 19, and the main armrest 12 is swingably assembled to the sub-armrest 12 in the horizontal and vertical positions in the left-right direction, and The sub-armrest 18 is connected to the armrest bracket 11 and the side 43 of the seat back 42.
And the armrest bracket 11 is pivotally mounted to the armrest bracket 11 in a vertically tilted position and a standing position in a vertical direction.

In this foldable armrest 10, the armrest bracket 11 has a main armrest shaft 22 projecting horizontally on its side 43 of the seat back 42 and the seat back. 42 is screwed to its side 43 and the sub-frame shaft 35 of its sub-armrest 13 is attached to its main armrest
The main frame shaft 28 of the main armrest 12 is supported on the shaft 22 so as to be swingable in the vertical direction.
It is coaxially extended and connected to the tip of the, and is swingable between a horizontal position and a vertical position in the horizontal direction,
Still further, the pinch type stopper 14 is located below the main armrest shaft 22 in the radial direction of the main armrest shaft 22 so as to be sandwiched so as to be able to contact the outer periphery of the sub-frame shaft 35, forward and upward. A pair of pins 39, 39 protruding from the armrest bracket 11 at an appropriate distance from the rear, is used, and the sub-frame shaft 35 is prevented from rotating between the upright position and the forwardly tilted position.

[0007] The armrest bracket 11 is cut from a thick steel plate into a square of a predetermined size, and through holes 23, 23 are formed in a pair of corners that define one diagonal line, and the front side plate surface 20 is used as a support surface. , The back side plate surface 21 is utilized as a mounting surface. The armrest bracket 11 has the main armrest shaft 22 erected at the center of the front side plate surface 20 and welded together, and the back side plate surface 21 is attached to the seat back 4.
2 is fixedly attached to its side 43 of the seat back 42 by screwing against its side 43.
In its mounted state, the armrest bracket 11 causes the main armrest shaft 22 to protrude horizontally into the side 43 of the seat back 42 and the main armrest shaft 22
The sub-frame shaft 35 is supported so as to be able to swing up and down. Of course, the main armrest shaft 22 is threaded at the tip and the bush 24 and the collar 25 are fitted, the sub-frame shaft 35 is fitted to the collar 25, and the sub-frame shaft A nut 26 is fastened to the threaded tip of the sub-frame shaft 35 with a washer 27 interposed between the sub-frame shaft 35 and the sub-frame shaft 35 so as to be rotatable.

[0008] The sub-frame shaft 35 constitutes the sub-armrest frame 18, and is made of a short pipe having a predetermined outer diameter. The sub-frame shaft 35 has a shaft hole 36 formed at the root thereof, while a stopper plate 37 is formed outside the tip of the shaft hole 36.
They are fitted and welded. Then, the sub-frame shaft 35 is fitted with the shaft hole 36 to the collar 25 supported by the main armrest shaft 22 with the bush 24 interposed therebetween, and the main frame
It is rotatably supported by the armrest shaft 22.
The stopper plate 37 is a ring plate having a hole flanged, and includes a pair of stoppers 38. The pair of stoppers 38, 38
Is embodied in a long circular hole that regulates the range in which the main frame shaft 28 swings between the horizontal position and the vertical position in the left-right direction.

The main frame shaft 28 is
The main frame is made of a long pipe made by cutting a material pipe having an inside diameter fitted to the outside of the tip of the sub-frame shaft 35 according to the armrest length, and then welding the bent frame wire 29 to the main pipe. -Assembled on the armrest frame 15. The main frame shaft 28 is formed by welding a ring plate 30 in which a pair of bolt holes 31 and 31 have been previously drilled to the root end and using it as a flange, and fitting the root to the distal end of the sub-frame shaft 35. Then, the flange 30 is butted against the stopper plate 37 so that the pair of bolt holes 31, 31 are aligned with the pair of long arc holes 38, 38. In this state, the stepped stud bolts 32, 32 are passed through the bolt holes 31, 31 and the long arc holes 38, 38 which are aligned with each other, and are tightened with the nuts 33, 33, and the main frame frame. The shaft 28 is coaxially extended and connected to the tip of the sub-frame shaft 35, and has a horizontal position in the left-right direction by the long arc holes 38, 38 and the stepped stud bolts 32, 32. And a vertical position. Of course, the main frame shaft 28 is closed at the tip by a cap 34 so that resin cannot flow during pad molding.

The pinch type stopper 14 has a pair of corners defining another diagonal line in the armrest bracket 11 and a pair of pins erected on the front side plate surface 20 of the armrest bracket 11 and integrally welded thereto. 39, 39, and the pair of pins 3
9 and 39 sandwich the sub-frame shaft 35 at intervals so as to contact the outer periphery of the sub-frame shaft 35. Of course, the pair of pins 39, 39 are provided on the front side plate surface of the armrest bracket 11 at intervals so as to prevent the sub-frame shaft 35 from rotating on the armrest bracket 11 between the upright position and the forwardly inclined position. 20. Specifically, the pair of pins 39, 39
The armrest bracket 11 is positioned forward and downward from the main armrest shaft 22 at an appropriate distance in the radial direction of the shaft 22, and is projected and welded to the front side plate surface 20 of the armrest bracket 11. .

In the driver seat 40 using the foldable armrest 10, reference numeral 41 is a seat cushion, and reference numeral 44 is a head restraint.

Therefore, in this foldable armrest 10, working holes used for frame assembly after pad formation in the main armrest 12 are omitted from the main trim cover 17, and pad formation is very simple and easy. . In addition, the armrest 10
And the mechanism for preventing the armrest 10 from rotating in each of its horizontal position and its vertical position becomes very simple. That is, they simplify the structure by having the function of the sub-frame shaft 35 and the stepped stud bolt 32.

As will be apparent from the specific embodiments of the invention described above with reference to the drawings, one skilled in the art to which the invention pertains will appreciate the subject matter of this invention. Is the nature of the invention (na
), and are readily embodied in other aspects that are objectively perceived as inherent in them. Of course, the content of the present invention corresponds to the subject of the invention (be commensu).
rate with) and essential for the invention.

[0014]

As can be appreciated from the foregoing, the collapsible armrest of the present invention comprises a main armrest which projects horizontally to the side of the seat back.
An armrest bracket having a shaft and fixedly attached to the side of the seat back, and a sub-frame frame of a sub-armrest which is swingably supported on the main armrest shaft in a vertical direction. A shaft and a main frame shaft of a main armrest which is coaxially extended and connected to a tip of the sub-frame shaft, and is swingable between a horizontal position and a vertical position in the left-right direction. ,
The armrest bracket is separated from the main armrest shaft radially in the radial direction of the main armrest shaft downward and forward and upward and backward as appropriate so as to be sandwiched so as to be able to contact the outer periphery of the sub-frame shaft. The collapsible armrest of the present invention uses a pair of protruding pins and includes a pinch type stopper for preventing the sub-frame shaft from rotating between an upright position and a forward-rearward position. The working hole is omitted from the skin, the pad can be foamed integrally with the frame and the skin, and the sewing work of the skin and the foaming work of the pad are simplified, and the pinching stopper is positioned at the standing position. The structure is simplified by stopping the sub-frame shaft from turning In addition, the armrest surface is broadly seated on the left and right seats in the forward tilted state and the occupant's elbow is placed, and it can be folded in the upright state and the walk-through between the seats is smooth, as a result, the automobile, In particular, it is very useful and practical for vehicles that enable walk-through.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a driver seat of a wagon using a specific example of a foldable armrest of the present invention.

FIG. 2 is a perspective view showing the armrest obtained by rotating a main armrest to a vertical position in a forward tilted state.

FIG. 3 is a perspective view showing the armrest in an upright state.

FIG. 4 is a cross-sectional view showing the main armrest.

FIG. 5 is an exploded perspective view showing a frame of the armrest.

FIG. 6 is an end view of a main armrest shaft of the main armrest as viewed from a root end.

FIG. 7 is a partial perspective view showing a rotation stopping relationship between a sub armrest shaft of the sub armrest and a sandwiching stopper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Armrest bracket 12 Main armrest 13 Subarmrest 14 Clamping stopper 22 Main armrest shaft 28 Mainframe shaft 35 Subframe shaft 39 Pin 42 Seat back 43 Side

Claims (1)

[Claims] 1. An armrest bracket having a main armrest shaft protruding horizontally on a side of a seat back, and being fixedly attached to that side of the seatback;
A sub-frame shaft of a sub-armrest, which is supported on the armrest shaft so as to be capable of swinging up and down, coaxially extended and connected to a tip of the sub-frame shaft, and The main frame shaft of the main armrest, which can be swung between the vertical position and the vertical position, and the main frame shaft in the radial direction of the main armrest shaft so as to be able to contact the outer periphery of the sub-frame shaft. Using a pair of pins protruding into the armrest bracket at appropriate distances downward and forward and upward and rearward from the armrest shaft, and the sub-frame;
A collapsible armrest that includes a pinch-type stopper that prevents the shaft from rotating between an upright position and a forward tilt position.