FR2789185A1 - Method of fabricating spectacle temple arm involves cutting and laminating wood which is then soaked in oil and dried - Google Patents

Abstract

The method of fabricating a spectacle temple arm involves choosing a wood material, forming a panel and cutting it. The wood is then laminated and polished and immersed in oil before drying and assembling the arm.

Description

PRIOR ART OF THE INVENTION

  The present invention relates to a method of manufacturing a branch of wooden glasses making it possible to highlight the natural colors and grains of this material and to be durably used without breaking or deforming. The materials of the usual spectacle frames can be divided into two main types: metallic materials and plastic materials. Metal frames have bright colors and little variation in shapes, while plastic frames often give the consumer the impression of a cheap product. Unlike these frames, wooden frames have grains, colors and qualities suitable for attracting the consumer. However, this material has certain drawbacks inherent in the manufacture of wooden frames. For example, during the natural drying process, the distribution of wood fibers often leads to its deformation and cracking because the surface of the wood dries at a speed different from that of the internal part. To avoid this cracking, the wood is usually covered with a paint blocking the capillary tubes formed by the surface fibers so that the water from this surface does not evaporate quickly. Thus, the water on the internal face and that on the external face evaporate at the same speed avoiding the

  deformation and cracking of wood. However, paint is a chemical.

  When the glasses have been worn for a long time, the chemical enters the

  contact with human skin and may cause irritation or other skin condition.

  Finally, the acid contained in the sweat excreted by the human body corrodes this painting which then detaches from the frames. In addition, the paint covers the colors and the

  wood grain and changes the quality of the latter.

SUMMARY OF THE INVENTION

  A main object of the present invention is to carry out a method of manufacturing a branch of glasses making it possible to present the natural colors and grains of the wood, this branch being able to be used durably without cracking or deforming.

  Another object of the present invention is to implement the above method

  above by simple steps, this process can offer different branch shapes

glasses.

  The present invention will be better understood from the following description and

the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

  Figure I is a diagram of the manufacturing process according to the present invention. Figure 2 is a perspective view of a branch of glasses according to the present

  invention assembled with a circle of glasses.

  Figure 3 shows connection between the connecting element and the end of

branch in one aspect.

  Figure 4 shows the connection between the connecting element and the end piece

another aspect.

  FIG. 5 represents the connection between the connection element and the end piece according to

another aspect.

  FIG. 6 represents the connection between the connection element and the end piece according to

another aspect.

  Figure 7 shows the connection between the connecting element and the end piece according to

another aspect.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS.

  We refer to Figures I to 7. A pair of glasses has circles (40), two glasses (42) and two branches. Each branch of glasses comprises a butt (41), a connection element (31) and a horizontal element (30). The present invention is a method of manufacturing a branch of spectacles comprising the steps consisting in: - first step (11) choosing a material: a relatively compact wood, such as teak, Japanese cypress, sandalwood used as material cut into sheets of a certain size; - second step (12) making a shape: the shape of the horizontal element (30) being drawn on paper; third step (13) cutting: the paper being fixed to the plate, the latter is cut according to the predetermined shape of the horizontal element (30); - fourth step (14) rolling: the horizontal element (30) is rolled with a rolling mill to obtain a preliminary sanding and give it the desired shape; - fifth step (15) sanding: the horizontal element (30) is sanded finely using a grinding wheel; sixth step (16) oil: a pure vegetable oil (such as sandalwood, Japanese cypress or olive oil) or animal oil (such as sheep fat) is applied to the external surface of the horizontal element (30)

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  - seventh step (17) polishing: the horizontal element (30) is polished using a powdered substance, a relatively high temperature being thus generated during this operation. The latter thus makes it possible to infiltrate the fatty material located on the surface of the horizontal element (30) into its small orifices, so that this element (30) has a smooth surface; - Eighth step (18) wipe: the horizontal element (30) is rubbed with a fabric to remove impurities and make its surface more shiny; - ninth step (19) immerse the horizontal element (30) in natural vegetable oil or animal oil until this oil has infiltrated this element to a certain extent; - tenth step (20) dry after the oil has infiltrated into the horizontal element (30) to such an extent that the wood has a brilliant color and grain, the horizontal element (30) then being removed and dried ; and - eleventh step (21) to assemble: the front end of the dried horizontal element (30) is attached to one end of the connection element (31), the other end of this element being fixed to the end (41). This about (41) is then connected in rotation to a

eyeglass circle (40).

  Reference is made to FIG. 2. In the procedure for assembling the horizontal element (30) with the spectacle ring (40), after this horizontal element (30) has been connected to the connection element (31 ), the latter is secured to the end (41) of the bezel circle (40) by at least one screw, a spring rod, an elastic plate, etc. (as shown in Figures 3 to 7). Thus, by changing the connecting element (31), the length of the horizontal element (30) can be adjusted to meet the needs of different users. Once the glasses (42) have been adjusted in the circles (40), a pair of glasses provided with wooden branches presenting grains and natural colors is completed. These glasses have a unique quality. In addition, in the manufacturing process, no chemical paint is used which is capable of attacking human skin. On the other hand, thanks to the method according to the present invention, the horizontal element (30) absorbs vegetable oil or animal fat to preserve the natural properties of the wood and overcome the problems of cracking and

  deformation. Therefore, these glasses can be used durably.

  It should be understood that the above description and drawings are only used

  only to illustrate certain embodiments of the present invention but are not

  intended to limit its scope. Any variation or modification of the description and

  The above drawings are within the scope of the present invention.

Claims (4)

  1. A method of manufacturing an eyeglass branch, this branch comprising a connecting element, a horizontal element and a butt to connect it in rotation to a circle of glasses, this method comprising the steps of - choosing a relatively compact wood such as teak, Japanese cypress, sandalwood used as material cut into sheets of a certain size; - draw on paper the shape of the horizontal element; - cutting the plate according to the predetermined shape, the paper being fixed to it - laminating the horizontal element (30) to obtain a preliminary sanding and giving it the desired shape; finely sand the horizontal element (30) using a grinding wheel; applying to the surface of this element (30) a pure vegetable oil or an animal oil; - Polishing with a powdered substance the element (30) the high temperature generated allowing the fatty material on its surface to infiltrate into the small orifices until a smooth surface is obtained; - wiping with a cloth said element (30) to remove impurities and return its natural surface or animal oil until this oil sufficiently infiltrates this element; - After the oil has impregnated the horizontal element (30) to such an extent that the wood has a brilliant color and grain, remove and dry said element; - Assemble the front end of this element (30) to one end of the connecting element (31), the other end of this element being fixed to the end piece (41) then connected   rotating to a circle of glasses (40).   2. Method according to claim 1, wherein the connecting element is   secured to the end by at least one screw.   3. Method according to claim 1, wherein the connecting element is   secured to the end by a spring rod.   4. Method according to claim 1, wherein the connecting element is   secured to the end by an elastic plate.