JPH08156803A - Manufacture of wooden steering wheel for automobile - Google Patents

Abstract

PURPOSE: To facilitate manufacturing of a wooden grip and also prevent falling- off of a spoke from the grip by folding the tip part of the armlike locking piece of the metallic spoke to insertedly fix this folded part to the fitting groove of the wooden grip. CONSTITUTION: A metallic spoke 2, composing a wooden steering wheel 1 for an automobile, is formed into a circular ring shape for fitting a center part to a steering wheel shaft having a partial circular shape. Fitting parts are radially formed of plural armlike locking pieces 3, 3', and 3'' in normal positions to constitute the steering wheel 1. The tip part in the longitudinal direction of the locking piece 3 of the metallic spoke 2 is folded upward or downward, and this folded part is inserted into a fitting groove, boredly provided on the upper or lower sides at the nearly center part of the lower grip of the wooden steering wheel 1, to be fixed by pressing adhesive by an upper grip 5. Consequently, the falling of the metallic spoke 2, constituting the wooden steering wheel 1, from a wood part grip can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new method of manufacturing a wooden handle used for steering an automobile.

[0002]

2. Description of the Related Art Conventionally, a wooden handle has been used for a long time mainly for sports cars and the like because it has advantages such as lightening the vehicle body and good hand feeling.

With regard to the metal spokes of the above-mentioned wooden handle, an annular cored bar is fitted into the center of a conventional wooden grip, and the tip of a spoke stop piece is joined or welded to the cored bar to grip the spoke. It had the purpose of preventing falling off from the ground.

In recent years, as disclosed in Japanese Examined Patent Publication No. 2-36427 by the technical development of adhesives and the like, the core bar installed in the substantial center of the grip is useless as a proverb, because it is harmful. It has been scientifically proved and deleted, and the method of forming the tip of the spoke locking piece in a flared shape is used as the latest method.

Next, as a method of manufacturing a wooden grip, several solid wood pieces are joined together. In addition, it was produced by hand such as processing a single bar into a circular shape by subjecting it to scientific treatment such as heat treatment.

[0006] Next, a piece of wood, such as beech wood, is peeled off from the outer circumference of a large tree to a predetermined thickness (radish katsura peeling) (a method of making a veneer board) and cut into a predetermined length and thickness. A circular ring-shaped (doughnut-shaped) material was obtained by winding the plates one by one on a winding drum, that is, by winding the bandage in the same manner.

That is, according to the above method, a single plate (a width of about 3 is manufactured).
Scale, length about 7 shaku) and shave both ends diagonally and glue each other's ends, and about 20 minutes with a normal handle
It took time and effort to connect to the length of 0 rice.

At present, as disclosed in Japanese Patent Publication No. 58-44506, a standard-sized veneer (a thin wooden plate) is laminated on a winding drum according to the size of a required handle and the adhesive is applied. A spiral ring-shaped body (annular material) is formed such that the winding ends are located at different positions through the layers.

In the above method, the winding ends of each thin plate are formed at different positions. That is, from the effect of the present invention, if the end of winding is 10 single plates on the outer peripheral surface of the grip, 10 spots appear, and if 15 single strips, 15 spots appear. That is, when a fixed-length (same length, same thickness) thin plate is started to be wound on the drum and 10 sheets are wound one after another at an interval of 10 squares, the outer peripheral surface of the grip has 10 winding end points at the same intervals, When it is cut into a shape, it has a design effect with a board pattern (bamboo grain pattern) similar to that of natural wood carved on the outer peripheral surface of the grip and a grain pattern on the plane. It is also understandable.

[0010]

SUMMARY OF THE INVENTION According to the present invention, a wooden grip is easily formed by newly forming a tip of a metal frame of a wooden handle, and the wooden grip is prevented from falling off.・ 2).

Large-diameter wood, which is a natural resource used for wooden grips, is depleted and it is extremely difficult to obtain (import) it.
There is an urgent need to develop alternative wood materials of the same material and standard length material, which is an important and necessary issue.

[0012]

The present invention provides the above-mentioned claim 1.
-Bending the tip of the metal frame connecting piece related to 2 to fit into the approximate center of the wooden grip to prevent the frame from falling off, and the metal frame connecting piece has a straight shape in the longitudinal direction. To process.

The present invention discloses a novel method for producing a wooden grip according to claim 3, wherein the total length of the veneer is 2
If the rice is 50 ㎛ or more, it is a manufacturing method in which the adhesive is applied to the number of veneers according to the required outer diameter of the grip, and it is rolled at once, and the starting end portion in the longitudinal direction of the long induction veneer is desired. Fixing to the take-up drum according to the size of the grip, applying adhesive to the upper part of the guide veneer on the number of veneers according to the desired thickness of the grip, superimposing in a stepwise manner, and winding Method, and the above-mentioned “problems to be solved by the invention” [0012]
In the state where the natural large-diameter wood resources are exhausted as described above, in the present invention, a small-diameter thinned wood is a normal board that is vertically split,
For example, as a ceiling plate-shaped thin plate (single plate), it is processed to a length of 2 rice 50 ㎛ or more, and an adhesive is applied alternately with the conventional single plate to polymerize, or it is polymerized in a staircase with only the above thinning material, and wound. It is a means to obtain a donut-shaped ring-shaped material by winding it on a take-up drum.

[0014]

The invention of claims 1 and 2 relates to a simple shape of the tip of the locking piece for firmly fixing the metal frame constituting the wooden handle to the wooden grip. The present invention prevents the frame from falling off from the grip by pushing it into the fitting groove formed in the wooden grip, and simplifies the frame mounting groove and fitting groove drilling process for the wooden grip.

A third aspect of the present invention relates to a method for manufacturing a wooden grip, which uses a simple winding method which does not exist in the conventional example, and which can also use thinned wood due to the depletion of foreign wood or natural resources. The material (circular material) can be obtained.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to claims 1 and 2 of the present invention will be described below with reference to the accompanying drawings. The metal spokes (2) constituting the handle (1) for a wooden automobile have a circular ring shape whose central part is attached to a circular handle shaft. A plurality of arm-like locking pieces (3) (3 ') (3 ") are radially formed as shown in FIG.
And a handle (1) is formed. The tip of the metal-spoke locking piece (3) in the longitudinal direction is bent upward or downward, as shown in FIG. 2, and the lower bent portion (4) is attached to the lower grip of the wooden handle (1). The spoke is connected to the insertion groove (6) formed above or below the substantially central portion of (5) and fixed by a pressure adhesive with the upper grip (5 '). Divide the tip of the stop piece (3) equally and bend it upward and downward.
As shown in FIG. 3, a downward bending portion (8) bent downward is inserted into a fitting groove (6) formed substantially in the center of the grip (5), and fixed by an adhesive. Insert an upward bent portion (7) bent downward into a fitting groove (6) formed at the same position of the upper grip (5 ') and apply an adhesive material to the lower grip (5) and the upper grip (5). ') Is adhered and fixed.

Next, the grip (wood portion) of the wooden automobile handle (1) according to claim 3 of the present invention will be described. The method for manufacturing the wooden grips (5), (5 ') of the present invention is the same as the above-mentioned "Prior art" [0007] [0008] and the like in the longitudinal direction of the long induction veneer (thin plate) (9). The start end portion (10) is fixed to the winding drum (11) so that it can be freely removed and fixed, and if the length is 2 rice or more and the length is 50 m or more, it is possible to wind even different kinds of wood or veneers of different thickness. The number of sheets is determined according to the thickness and size of the predetermined grips (5) and (5 ′) to be applied, and an adhesive is applied to each veneer (12) and superposed in a stepwise manner to form a guide veneer ( 9) It is placed on top as shown in FIG. 4, and when the winding drum (11) is wound in the direction of the arrow, it has a predetermined width, thickness, and thickness by a plurality of rotations, and has a ring-shaped grip shown in FIG. (5) The material (12) of (5 ') is obtained.

Next, the grip material (14) is sliced according to the thickness (grip diameter) of the grip to obtain a ring-shaped upper grip (5 ') and lower grip (5). Subsequently, the outer peripheral portion (13) of the grips (5) and (5 ') is cut and formed into a substantially semicircular shape, and the upper grip (5') and the lower grip (5) are overlapped to form a xylem grip. . Next, at the substantially central portion of the mating surface of the grip, the [claim 1
[2] Fitting grooves (6) (6 ') into which the bent portions (4) (7) (8) of the tip end of each locking piece (3) of the metal spoke of [2] are inserted.
The upper and lower grips (5) are formed by forming mounting grooves (15) into which the locking pieces (3) (3 ') (3 ") are fitted.
(5 ') is formed, the locking piece of the spoke is fitted into the mounting groove of the grip, and the bent portions provided at the tip of the locking piece are pushed into the fitting grooves, so that the upper grip and the lower grip are connected. The wooden automobile handle is formed by uniting and pressing and fixing with an adhesive.

[0019]

EFFECT OF THE INVENTION The wooden automobile handle constructed as described above has a very simple method of removing from the wooden grip of the metal spokes constituting the wooden handle, which has been considered to be the most unstable in the past. It is the disclosure of the invention which has the effect of three birds with one stone, which can be effectively prevented, and can be rationally selected as the wood material of the wood grip to achieve resource saving.

[Brief description of drawings]

FIG. 1 is a plan view of a wooden handle of the present invention.

FIG. 2 is an explanatory view showing a state in which a bent portion of a tip end portion of a spoke connecting piece is pushed into a wooden grip.

FIG. 3 is an explanatory view showing a state in which a tip portion of a locking piece according to claim 2 is equally divided and bent upward and downward.

FIG. 4 is an explanatory diagram showing a state in which a single plate is wound around a winding drum.

FIG. 5 is an explanatory diagram in which one end of a circular ring-shaped (doughnut-shaped) material and a grip that have been wound is cut into a ring shape.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Wooden automobile handle, 2 ... Metal spokes, 3 ... Arm-shaped stop piece, 3 '... Arm-shaped stop piece, 3 "... Arm-shaped stop piece, 4 ... Lock of Claim 1. Lower bent part of the piece, 5 ... Lower grip, 5 '... Upper grip, 6 ... Fitting groove, 7 ... Upward bent part of the locking piece of claim 2, 8 ... Under the locking piece of claim 2. Bending section, 9 ... Guide veneer, 10 ... Starting end of guide veneer, 11 ... Winding drum, 12 ... Veneer 13 ... Perimeter of each grip, 14 ... Grip material, 15 ... Mounting groove.

Claims (3)

[Claims] 1. A handle for a wooden automobile, comprising metal spokes and a wooden grip, wherein the metal spokes are formed by a plurality of arm-shaped connecting pieces radially from a partially circular attachment part. A method for manufacturing a handle for a wooden automobile, in which a tip of each locking piece is bent upward or downward, and the bent portion is pushed into and fixed to a fitting groove of a wooden grip. 2. An end portion of a metal spoke stop piece is equally divided at a substantially central portion, one of which is bent upward and the other is bent downward, and the bent portion is pushed and fixed to a fitting groove of a wooden grip. To make a wooden handle for a car. 3. The wooden grip has a total length of 2 rice 50 by fixing a longitudinal starting end of a long induction veneer to a winding rotary drum.
Adhesive is applied to multiple veneers of unspecified length that have a length of more than 200 mm, and different types of wood and different thickness as required, and the polymerization is performed in a stepwise manner and wound into a winding drum. A method for manufacturing a handle for a wooden automobile, which is formed by forming a ring-shaped wooden grip material and adhering it to the metal spokes formed in claim 1.