Support Block Made from Indonesian Rubber Tree with Latex Removed and Manufacturing Method thereof

Abstract

A support member according to the present invention, made of Indonesian rubber wood from which the latex has been removed, is formed from Indonesian rubber wood from which the latex has been removed and is formed in the shape of a rectangular column, wherein one side is formed as a support surface that contacts a support object, and a first chamfered portion may be formed on a pair of long side corners of the support surface.

Description

Technology Field

[0001] The present invention relates to a support beam and a method for manufacturing the same, and more specifically, to a support beam with improved durability and easy recycling using Indonesian rubber wood from which latex has been removed as a raw material, and a method for manufacturing the same. Background Technology

[0002] Steel materials undergo production, transportation, and storage processes at industrial sites. In particular, large steel products such as pipes, coils, and plates are heavy, so it is common practice to place support blocks underneath them during stacking and storage. Support blocks serve to prevent damage caused by direct contact between steel materials and the ground or other steel materials, and to maintain a stable stacked state by distributing the load.

[0003] Traditionally, wood has been widely used as a material for railway supports. Wooden supports offer the advantages of being easy to process, inexpensive, and non-damaging to the surface of steel when in contact. However, commonly used wooden supports develop durability issues as they are exposed to continuous loads and friction. In particular, the corners of the supports are areas where the load from the steel is concentrated or where severe friction occurs upon contact; as a result, cracking or breakage frequently occurs over time. Such damage shortens the replacement cycle of the supports and consequently leads to increased maintenance costs.

[0004] Meanwhile, although rubber trees are widely cultivated as a latex-producing species, their use in wood products has been limited due to the latex content they contain. While latex is the primary component determining the economic value of rubber trees, it can actually cause problems during the drying and processing stages when processed into wood. Consequently, rubber trees have mostly been discarded or utilized only for low-value applications after latex extraction is complete. However, with the recent rise in interest in environmental protection and resource recycling, attempts are being made to convert discarded rubber trees into useful wood resources.

[0005] In addition, when wooden supports are damaged, if the damage occurs in an irregular manner, it is difficult to recycle the damaged supports, and they often have to be completely discarded. Therefore, there is a need for structural improvements that can enhance the durability of the supports while inducing damage in a way that allows for recycling even if damage occurs. Prior art literature

[0006] Korean Patent Publication No. 10-2023-0030943 The problem to be solved

[0007] The present invention is an invention devised to solve the problems of the aforementioned prior art, and aims to provide a support tree and a method for manufacturing the same that can extend the replacement cycle by utilizing rubber wood from which the latex has been removed to prevent edge damage caused by continuous load and friction, and by inducing damage in a form that allows for recycling even when damage occurs.

[0008] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0009] The support member of the present invention, which is made of Indonesian rubber wood from which the latex has been removed to achieve the above-mentioned purpose, is formed from Indonesian rubber wood from which the latex has been removed and is formed in the shape of a rectangular column, wherein one side is formed as a support surface that contacts a support object, and a first chamfered portion may be formed on a pair of long side corners of the support surface.

[0010] At this time, a second chamfered portion may be formed on a pair of long side corners of the back surface formed on the opposite side of the support surface.

[0011] In addition, a pair of connecting surfaces that respectively connect a pair of long sides of the support surface and a pair of long sides of the back surface formed on the opposite side of the support surface may have an auxiliary groove extending along the longitudinal direction.

[0012] At this time, the above auxiliary groove may be formed in a shape where two inclined surfaces meet on the inside in cross-section.

[0013] And the above auxiliary grooves may be formed in multiple numbers side by side on the connecting surface.

[0014] Meanwhile, the method for manufacturing a support timber using Indonesian rubber wood from which the latex has been removed as a raw material according to the present invention for achieving the above-mentioned purpose may include (a) a step of preparing Indonesian rubber wood from which the latex has been removed, (b) a step of cutting the rubber wood into a rectangular column shape, and (c) a step of forming a first chamfered portion by chamfering a pair of long side edges of the support surface to be in contact with a support object from the rubber wood cut by step (b).

[0015] At this time, the present invention may further include step (d) of forming a second chamfered portion by chamfering a pair of long side edges of the back surface formed on the opposite side of the support surface.

[0016] In addition, the present invention may further include step (e) of forming an auxiliary groove extending along the longitudinal direction on a pair of connecting surfaces that respectively connect a pair of long sides of the support surface and a pair of long sides of the back surface formed on the opposite side of the support surface.

[0017] At this time, step (e) above may form a plurality of auxiliary grooves side by side on the connecting surface.

[0018] In addition, after step (c) above, step (f) may be further included to perform surface finishing of the rubber tree on which the first chamfered portion formed by step (c) above is formed. Effects of the invention

[0019] The support timber and the method for manufacturing the same, which use Indonesian rubber tree with the latex removed as a raw material according to the present invention to solve the above-mentioned problem, have the advantage of being able to provide an environmentally friendly and economical support timber by utilizing Indonesian rubber tree with the latex removed as a raw material, thereby recycling resources that were previously discarded.

[0020] In addition, the present invention has the advantage of improving the durability of the support timber and extending the replacement cycle by preventing cracking and damage at the corner portions where the load and friction of the steel material are concentrated by forming a first chamfer on a pair of long side corners of the support surface.

[0021] Therefore, the present invention has the advantage of reducing maintenance costs for support timbers and providing a stable transportation and storage environment for steel materials.

[0022] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0023] FIG. 1 is a drawing showing a support object being supported through a support member made of Indonesian rubber wood from which the latex has been removed, according to the first embodiment of the present invention. FIG. 2 is a drawing showing the appearance of a support beam made of Indonesian rubber wood from which the latex has been removed, according to the first embodiment of the present invention. FIG. 3 is a drawing showing the cross-sectional shape of a support beam made of Indonesian rubber wood from which the latex has been removed, according to the first embodiment of the present invention. FIG. 4 is a drawing showing a recycling method for a support timber made from Indonesian rubber wood from which the latex has been removed, according to the first embodiment of the present invention. FIG. 5 is a diagram showing each process of a method for manufacturing a support timber using Indonesian rubber wood from which the latex has been removed as a raw material, according to the first embodiment of the present invention. FIG. 6 is a drawing showing the cross-sectional shape of a support beam made of Indonesian rubber wood from which the latex has been removed, according to the second embodiment of the present invention. FIG. 7 is a diagram showing each process of a method for manufacturing a support timber using Indonesian rubber wood from which the latex has been removed as a raw material, according to the second embodiment of the present invention. Specific details for implementing the invention

[0024] In this specification, where a component (or region, layer, part, etc.) is described as being "on," "connected," or "combined" with another component, it means that it may be directly placed / connected / combined with the other component, or that a third component may be placed between them.

[0025] Identical reference numerals denote identical components. Additionally, in the drawings, the thicknesses, proportions, and dimensions of the components are exaggerated for the effective illustration of the technical content.

[0026] "And / or" includes all one or more combinations that the associated configurations can define.

[0027] Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0028] Additionally, terms such as "below," "lower side," "above," and "upper side" are used to describe the relationships between the components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0029] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Additionally, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and are explicitly defined herein unless interpreted in an ideal or overly formal sense.

[0030] Terms such as "include" or "have" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0031] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0032] FIG. 1 is a drawing showing a support object (10) being supported through a support block (100) made of Indonesian rubber tree with the latex removed according to the first embodiment of the present invention.

[0033] As illustrated in FIG. 1, in this embodiment, the support member (100) can perform the role of supporting a support object (10) made of steel material.

[0034] The support object (10) may be a steel material of various forms such as a steel pipe, steel coil, steel plate, etc., and a support block (100) may be placed at the bottom during transportation and storage to prevent direct contact with the ground or other steel materials.

[0035] The support member (100) can perform the role of distributing the load of the supported object (10), maintaining a stable loading state, and preventing surface damage to the supported object (10).

[0036] In addition, to prevent movement of the supported object (10), a triangular member (20) that supports the supported object (10) from both sides may be provided on the support member (100). The triangular member (20) may be provided by cutting the support member (100) to an appropriate length and forming an oblique slope. If necessary, a friction element may be included between the two to minimize movement of the triangular member (20) on the support member (100).

[0037] FIG. 2 is a drawing showing the appearance of a support beam (100) made of Indonesian rubber tree with latex removed according to the first embodiment of the present invention, and FIG. 3 is a drawing showing the cross-sectional shape of a support beam (100) made of Indonesian rubber tree with latex removed according to the first embodiment of the present invention.

[0038] As illustrated in FIGS. 2 and 3, in this embodiment, the support timber (100) may be formed from Indonesian rubber trees from which the latex has been removed. Although rubber trees are widely cultivated as a species that produces latex, their use as wood products has been limited due to the latex components contained within them. Therefore, rubber trees from which the latex has been harvested have mostly been discarded or used only for low-value-added purposes; however, in the present invention, the recycling of waste resources can be realized by utilizing rubber trees from which the latex has been removed as the raw material for the support timber (100). Rubber trees from which the latex has been removed are easy to dry and process, and can secure physical properties as wood, making them suitable for manufacturing the support timber (100).

[0039] The support member (100) may be formed in the shape of a rectangular column and may have a shape that extends along the longitudinal direction. The support member (100) may be formed with a support surface (110) on one side that contacts the support object (10), and the support surface (110) may be a surface that directly supports the load of the support object (10).

[0040] The first chamfered portion (111) can be formed by chamfering the corner portion extending along the long side direction of the support surface (110), and can be formed in a curved shape or an inclined shape. If the first chamfered portion (111) is formed in a curved shape, the corner can be treated as a surface with curvature through rounding, and if it is formed in an inclined shape, the corner can be cut at a certain angle to be treated as an inclined surface in a flat shape. The first chamfered portion (111) can prevent cracking and damage by alleviating stress concentration in the corner portion where the load and friction of the support object (10) are concentrated.

[0041] In addition, in this embodiment, the support member (100) may include a back surface (120) formed on the opposite side of the support surface (110). The back surface (120) may be a surface that contacts the ground or other loads, and may be formed parallel to the support surface (110).

[0042] A pair of connecting surfaces (130) may be formed to connect a pair of long sides of the support surface (110) and a pair of long sides of the back surface (120), respectively. The connecting surfaces (130) form the sides of the support member (100) and may extend along the longitudinal direction.

[0043] An auxiliary groove (131) extending along the longitudinal direction may be formed in the connecting surface (130). The auxiliary groove (131) may be formed in the shape of a groove that is recessed inward from the surface of the connecting surface (130) and may extend continuously along the longitudinal direction of the support member (100). The auxiliary groove (131) may be formed in a cross-sectional shape in which two inclined surfaces meet inwardly and may have a V-shaped cross-section.

[0044] The auxiliary groove (131) can serve as a guideline for damage when damage occurs due to continuous load and friction applied to the support member (100). That is, the auxiliary groove (131) guides the damage of the support member (100) to proceed regularly along the auxiliary groove (131) rather than in an irregular manner, thereby allowing it to maintain a recyclable form even after damage.

[0045] A plurality of auxiliary grooves (131) may be formed side by side on the connecting surface (130). The plurality of auxiliary grooves (131) may be arranged parallel to each other and extended along the length direction, or may be formed spaced apart at regular intervals. By forming a plurality of auxiliary grooves (131), regular breakage can be induced at various locations upon breakage, and the broken support wood (100) can be separated into several pieces and recycled.

[0046] FIG. 4 is a drawing showing a recycling method of a support wood (100) made of Indonesian rubber wood from which latex has been removed, according to the first embodiment of the present invention.

[0047] As illustrated in FIG. 4, in this embodiment, when damage occurs to the support member (100) due to continuous load and friction, the damage may proceed along the auxiliary groove (131). As the auxiliary groove (131) acts as a guideline for damage, a damage line may be formed based on the auxiliary groove (131) formed on the connecting surface (130) of the support member (100).

[0048] Afterward, the worker can remove both sides of the damaged area including the auxiliary groove (131), that is, the connecting surface (130), by a predetermined thickness. When both sides of the connecting surface (130) are removed, the width of the support member (100) is reduced, and the removed support member (100) can be rotated 90 degrees for use.

[0049] In this way, when the support member (100) is rotated 90 degrees, the surface that was previously used as the connecting surface (130) becomes the new support surface, and the existing support surface (110) and the back surface (120) become the new connecting surface. Therefore, a support member (100) in which the connecting surface (130) is damaged due to breakage can be recycled by rotating it 90 degrees and utilizing the undamaged surface as the new support surface, and the lifespan of the support member (100) can be extended.

[0050] FIG. 5 is a diagram showing each process of a method for manufacturing a support timber using Indonesian rubber wood from which the latex has been removed as a raw material, according to the first embodiment of the present invention.

[0051] As illustrated in FIG. 5, the method for manufacturing a support timber in this embodiment may include steps (a), (b), (c), (e), and (f).

[0052] Step (a) is the step of preparing an Indonesian rubber tree from which the latex has been removed. In Step (a), rubber trees scheduled for disposal after the latex extraction from the rubber tree is completed can be secured. The rubber tree from which the latex has been removed can be processed into wood and, through a drying process, can be prepared in a state suitable for manufacturing a support timber (100).

[0053] Step (b) is the step of cutting the rubber tree into a rectangular column shape. In step (b), the prepared rubber tree can be cut and processed to form a rectangular column shape. The cut rubber tree has the basic shape of a support (100), and a support surface (110), a back surface (120), and a connecting surface (130) can be formed.

[0054] Step (c) is a step of forming a first chamfered portion (111) by chamfering a pair of long side edges of a support surface (110) that will come into contact with a support object (10) from the rubber wood cut by Step (b). In Step (c), the long side edges of the support surface (110) can be processed using processing equipment such as a router or a milling device.

[0055] The first chamfering section (111) can be processed into a curved shape or an inclined shape. If processed into a curved shape, the corners can be treated as a surface with curvature through rounding, and if processed into an inclined shape, the corners can be cut at a certain angle to be treated as an inclined surface in the shape of a flat plane.

[0056] Step (e) is a step of forming an auxiliary groove (131) that extends along the longitudinal direction in a pair of connecting surfaces (130) that respectively connect a pair of long sides of the support surface (110) and a pair of long sides of the back surface (120). In Step (e), an auxiliary groove (131) having a V-shaped cross-section can be formed in the connecting surfaces (130) using a groove processing device. In this embodiment, in Step (e), a plurality of auxiliary grooves (131) can be formed side by side in the connecting surfaces (130), and the number and spacing of the auxiliary grooves (131) can be adjusted according to the size and use of the support member (100).

[0057] Step (f) is a step of performing surface finishing on the rubber tree in which the first chamfered portion (111) is formed by Step (c) after Step (c). In Step (f), the surface of the support wood (100) can be smoothed through surface treatment processes such as sanding and polishing. Surface finishing can improve the appearance of the support wood (100) and minimize surface damage when in contact with the support object (10).

[0058] Hereinafter, other embodiments of the present invention will be described.

[0059] FIG. 6 is a drawing showing the cross-sectional shape of a support timber (100) made of Indonesian rubber wood from which the latex has been removed, according to the second embodiment of the present invention.

[0060] As illustrated in FIG. 6, in this embodiment, the support member (100) may additionally have a chamfering process formed on the back side (120) in addition to the configuration of the first embodiment. A pair of long side corners of the back side (120) formed on the opposite side of the support surface (110) may have a chamfered second chamfered portion (121) formed.

[0061] The second chamfered portion (121) can be formed by chamfering the corner portion extending along the long side direction of the back surface (120), and can be formed in a curved shape or an inclined shape. If the second chamfered portion (121) is formed in a curved shape, the corner can be treated as a surface with curvature through rounding, and if it is formed in an inclined shape, the corner can be cut at a certain angle to be treated as an inclined surface in a flat shape. The second chamfered portion (121) can prevent damage that may occur at the corner portion of the back surface (120) where the support member (100) comes into contact with the ground or other loads, and can improve the overall durability of the support member (100).

[0062] FIG. 7 is a diagram showing each process of a method for manufacturing a support timber using Indonesian rubber wood from which the latex has been removed as a raw material, according to the second embodiment of the present invention.

[0063] As illustrated in FIG. 7, the method for manufacturing a support timber in this embodiment may additionally include step (d) in addition to steps (a), (b), (c), (e), and (f) of the first embodiment.

[0064] Step (d) is a step of forming a second chamfered portion (121) by chamfering a pair of long side edges of the back surface (120) formed on the opposite side of the support surface (110). Step (d) can be performed after Step (c), and the long side edges of the back surface (120) can be processed using the same processing equipment and method as in Step (c).

[0065] The second chamfering part (121) can be processed into a curved shape or an inclined shape. If processed into a curved shape, the corners can be treated as a surface with curvature through rounding, and if processed into an inclined shape, the corners can be cut at a certain angle to be treated as an inclined surface in the shape of a flat plane.

[0066] (d) Through step (d), chamfered portions are formed on both the upper and lower sides of the support member (100), thereby ensuring the same durability even when the support member (100) is used upside down, and extending the service life.

[0067] For the above, a support beam made of Indonesian rubber wood from which the latex has been removed and a method for manufacturing the same according to each embodiment of the present invention have been described in detail. Below, various structures and processes that can be additionally applied to the present invention will be described.

[0068] In the present invention, the first chamfered portion (111) and the second chamfered portion (121) may be formed in different shapes. The first chamfered portion (111) is formed on a support surface (110) that is in direct contact with the support object (10) and performs the role of directly supporting the load of the support object (10). Therefore, it may be formed in a shape that prevents corner damage while maintaining a wide contact area with the support object (10). Accordingly, the first chamfered portion (111) may be formed in a curved shape having a first radius of curvature or in an inclined shape having a first angle of inclination.

[0069] On the other hand, the second chamfered portion (121) is formed on the back surface (120) that contacts the ground or other load and performs the role of indirectly supporting the load of the support object (10), so it can be formed in a shape different from the first chamfered portion (111). The second chamfered portion (121) can be formed in a curved shape having a second radius of curvature or in an inclined shape having a second angle of inclination.

[0070] When both the first beveling portion (111) and the second beveling portion (121) are formed in a curved shape, the first radius of curvature may be formed larger than the second radius of curvature. When the first radius of curvature is formed larger than the second radius of curvature, the first beveling portion (111) has a gentler curve than the second beveling portion (121), so that a large contact area can be secured when in contact with the support object (10) and the load distribution effect can be improved.

[0071] When both the first beveling portion (111) and the second beveling portion (121) are formed in the shape of inclined surfaces, the first angle of inclination may be formed smaller than the second angle of inclination. The first angle of inclination refers to the angle between the inclined surface formed by the support surface (110) and the first beveling portion (111), and the second angle of inclination may refer to the angle between the inclined surface formed by the back surface (120) and the second beveling portion (121). If the first angle of inclination is formed smaller than the second angle of inclination, the first beveling portion (111) will have a gentler slope than the second beveling portion (121), thereby securing a large contact area when in contact with the support object (10) and improving the load distribution effect.

[0072] Additionally, the first beveling portion (111) may be formed in a curved shape and the second beveling portion (121) may be formed in an inclined shape, or conversely, the first beveling portion (111) may be formed in an inclined shape and the second beveling portion (121) may be formed in a curved shape. Accordingly, the first beveling portion (111) and the second beveling portion (121) can be formed by combining various shapes according to the usage environment of the support member (100) and the characteristics of the support object (10), and can provide a beveling shape optimized for each of the upper and lower sides of the support member (100).

[0073] Next, in the present invention, the auxiliary groove (131) may be formed by continuously extending along the longitudinal direction along the connecting surface (130), but may also be formed intermittently along the longitudinal direction. When the auxiliary groove (131) is formed intermittently, the auxiliary groove (131) may be formed in a form in which groove sections having a certain length and non-grooved sections where no groove is formed are alternately arranged.

[0074] The groove section is a section where the auxiliary groove (131) is actually formed, and may have a shape that is recessed inward from the surface of the connecting surface (130). The non-groove section is a section where the auxiliary groove (131) is not formed, and may have a shape in which the original surface of the connecting surface (130) is maintained. The groove section and the non-groove section may be repeatedly arranged along the length direction of the support member (100), and the lengths of each groove section and non-groove section may be formed to be the same or different from each other.

[0075] By intermittently forming auxiliary grooves (131), the original thickness of the connecting surface (130) is maintained in the non-grooved section, thereby ensuring the structural strength of the support member (100), and in the grooved section, it can serve as a guide for the line of damage when damage occurs. Therefore, by intermittently forming auxiliary grooves (131), the structural strength of the support member (100) is maintained, while also ensuring a regular damage induction effect when damage occurs.

[0076] In addition, when multiple auxiliary grooves (131) are formed on the connecting surface (130), the positions of the grooved section and the non-grooved section of each auxiliary groove (131) can be formed in an alternating manner. That is, by arranging the auxiliary groove (131) so that a non-grooved section is formed in an adjacent auxiliary groove (131) where a grooved section is formed in one auxiliary groove (131), the overall strength distribution of the connecting surface (130) can be maintained uniformly.

[0077] Next, in the present invention, step (a) is a step of preparing an Indonesian rubber tree from which the latex has been removed, and in detail may include a process of securing a rubber tree from which the latex has been harvested and a process of removing the latex.

[0078] The process of securing rubber trees for which latex extraction has been completed may involve selecting and securing rubber trees that no longer produce latex after extraction is finished. Rubber trees are felled when their productivity declines following latex extraction for a certain period, and the felled trees may contain residual latex.

[0079] The latex removal process may involve removing residual latex from the secured rubber trees and can be performed using natural drying or heat treatment methods. Natural drying may involve drying the felled rubber trees in a natural state for a specified period to evaporate or solidify the internal moisture and latex components. The natural drying period may vary depending on the size of the rubber trees, climatic conditions, etc., and may continue until the internal moisture content of the rubber trees decreases to a level suitable for wood processing.

[0080] The heat treatment method may involve applying high-temperature steam or hot air to felled rubber trees to melt or expel the internal latex components. Compared to natural drying, the heat treatment method can remove the latex in a shorter time; by placing the rubber trees in a sealed chamber and supplying steam at a predetermined temperature, the latex can be liquefied and then expelled. After heat treatment, the rubber trees can be further dried to control the moisture content.

[0081] The rubber tree, after the latex removal process is complete, can secure the physical properties of wood and is in a state that is easy to process, such as cutting and trimming. Therefore, the rubber tree prepared through step (a) can be provided as a raw material suitable for the processing steps following step (b).

[0082] In addition, the latex removal process in the present invention may further include a mechanical compression method. The mechanical compression method may be a method of forcibly expelling the internal latex by applying physical pressure to a felled rubber tree. By feeding the rubber tree into a roller press or a hydraulic press and applying pressure in the longitudinal or diametrical direction, the latex inside the rubber tree can be expelled to the outside through the pores between the tissues. The mechanical compression method may be performed in parallel with a natural drying method or a heat treatment method; if mechanical compression is performed while the rubber tree is heated after heat treatment, the viscosity of the latex is lowered, which can improve the expulsion efficiency.

[0083] In addition, the latex removal process in the present invention may further include a chemical treatment method. The chemical treatment method may involve immersing the rubber tree in a treatment solution containing a latex coagulant or a latex decomposer, or applying the treatment solution to the surface of the rubber tree. The latex coagulant can fix the latex so that it does not flow within the wood tissue by solidifying the polymer structure of the latex, while the latex decomposer can minimize the impact during wood processing by breaking down the polymer structure of the latex and converting it into low-molecular-weight substances. After chemical treatment, the rubber tree is washed to remove residual treatment solution, and stability as wood can be ensured through a drying process.

[0084] Furthermore, the latex removal process in the present invention may additionally include a vacuum treatment method. The vacuum treatment method may involve placing the rubber tree inside a sealed vacuum chamber and reducing the pressure inside the chamber to a level lower than atmospheric pressure to evaporate or discharge the latex and moisture inside the rubber tree. Heating the inside of the chamber during the vacuum treatment process can promote the evaporation of latex and moisture, and since evaporation is possible even at low temperatures under a vacuum state, damage to the wood tissue of the rubber tree can be minimized. The vacuum treatment method can shorten the processing time compared to the natural drying method and can uniformly remove latex even from the inside of the rubber tree.

[0085] In this way, in step (a), the latex removal process can be performed by selecting at least one of natural drying, heat treatment, mechanical pressing, chemical treatment, and vacuum treatment methods, or by combining these, and the optimal method can be selected by considering the condition of the rubber tree, treatment time, cost, etc.

[0086] Preferred embodiments according to the present invention have been described above, and it is obvious to those skilled in the art that, in addition to the embodiments described above, the present invention may be embodied in other specific forms without departing from the spirit or scope thereof. Therefore, the embodiments described above should be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the description above but may be modified within the scope of the appended claims and their equivalents. Explanation of the symbols

[0087] 10: Support object 20: Triangular neck 100: Support block 110: Support surface 111: First beveling 120: On the other side 121: Second beveling 130: Connection surface 131: Auxiliary Home

Claims

Claim 1 A support member formed by reusing Indonesian rubber wood from which the latex has been removed, and formed in the shape of a rectangular column, wherein one side is formed as a support surface that contacts a support object made of steel, thereby supporting the support object and preventing contact with other steel materials or the ground, wherein a first chamfered portion is formed on a pair of long side corners of the support surface, and a pair of connecting surfaces connecting the pair of long sides of the support surface and a pair of long sides of the opposite side formed on the support surface are each formed with an auxiliary groove that extends along the length direction in a shape recessed inward from the surface of the connecting surfaces, and has a cross-sectional shape in which two inclined surfaces meet inwardly, wherein the auxiliary groove guides damage caused by the load and friction applied from the support object to proceed along the auxiliary groove. Claim 2 A support member according to claim 1, wherein a pair of long side corners of the rear surface formed on the opposite side of the support surface have a second chamfered portion formed thereon. Claim 3 delete Claim 4 delete Claim 5 In claim 1, the auxiliary groove is a support member formed in a plurality of parallel on the connecting surface. Claim 6 A method for manufacturing a support tree, comprising: (a) a step of preparing an Indonesian rubber tree from which the latex has been removed; (b) a step of cutting the rubber tree into a rectangular column shape; (c) a step of forming a first chamfered portion by chamfering a pair of long side edges of a support surface to be in contact with a support object made of steel material from the rubber tree cut in step (b); and (e) a step of forming an auxiliary groove on a pair of connecting surfaces that respectively connect a pair of long sides of the support surface and a pair of long sides of a rear surface formed on the opposite side of the support surface, the auxiliary groove extending along the length direction in a shape recessed inward from the surface of the connecting surface, wherein the auxiliary groove is configured to induce damage caused by a load and friction applied from the support object to proceed along the auxiliary groove. Claim 7 A method for manufacturing a support timber according to claim 6, further comprising the step (d) of forming a second chamfered portion by chamfering a pair of long side edges of a rear surface formed on the opposite side of the support surface. Claim 8 delete Claim 9 In claim 6, the above step (e) is a method for manufacturing a support member, wherein a plurality of auxiliary grooves are formed side by side on the connecting surface. Claim 10 A method for manufacturing a support timber according to claim 6, further comprising, after step (c), step (f) of performing surface trimming of the rubber wood on which the first chamfered portion is formed by step (c).

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