JP2013039609A - Device for supporting article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for supporting an article, which not only preferably conveys an article while supporting the article at a predetermined height position, but also causes no deep scar in the article.SOLUTION: The device for supporting an article is configured such that a proximal end of a brush 2 that is formed by binding a plurality of pieces of fiber 4, is fixed to a base member 1 so as to support an article that is conveyed by a distal end of the brush 2 fixed to the base member 1, wherein stiffness of at least a part of a distal end of the fiber 4 is configured lower than that of the other part of the fiber 4, and the distal end of the fiber 4 is tapered as proceeding to the distal end side.

Description

  The present invention relates to an article support device provided to support an article to be transferred.

  In addition to being used for glass substrate cutting devices and glass substrate inspection devices, the above article support device is also used for article processing machines (in addition to punching and bending presses under NC control, laser processing machines, etc.) It is used when moving and supporting on a table, and it is also used as a temporary table between processes for producing an intermediate product of a ground product. In the case of this temporary placement table, when placing an article on the temporary placement table or moving the article placed on the temporary placement table to another place, the article is supported on the table. In this way, the article can be stably transported by supporting the lower surface of the article at a predetermined height on the table. As this article support device, an apparatus constituted by a large number of brushes arranged at predetermined intervals to support an article to be transferred from below has been proposed (see, for example, Patent Document 1).

JP 2000-102418 A

  Each brush is configured by bundling a plurality of fibers, can stably support articles to be transported, and has high rigidity so that the fibers are not easily deformed so as to be excellent in durability. It is composed of

  By the way, in the brush, after bundling a plurality of prepared fibers, the fibers are trimmed so that the tips of all the fibers are aligned, but the tips of all the fibers can be trimmed with high accuracy. Can not. For this reason, the position of the tip of the fiber is slightly different in the height direction. Incidentally, it is conceivable to increase the fiber cutting accuracy so that the tip positions of all the fibers are aligned, but since the manufacturing cost is increased, the cutting accuracy is not actually increased.

  The inventor of the present application has noticed that the following inconvenience occurs when the tips of the fibers are not aligned as described above. That is, when an article is transferred, the article first comes into contact with the tip of a tall fiber. At this time, since the fibers have rigidity that does not easily deform, the article is transferred in a state of being in contact with only tall fibers. As a result, since the weight of the article is transported while being supported only by some fibers, a part of the article is compared with the contact pressure that the article receives from the fibers when it is transported while being supported by all the fibers. The contact pressure that the article receives from the fiber when the article is transported while supporting the article with this fiber becomes larger. For this reason, when the article is transferred with a part of the fibers, the contact pressure increases, and adhesion wear generated on the article due to sliding contact with the fibers increases. As a result, there are inconveniences that many scratches are generated due to adhesion wear, or some of the scratches become deep, and there is room for improvement.

  Incidentally, it is conceivable that the brush is composed of low-rigidity (flexible) fibers so that each fiber can be easily deformed, but in this case, each fiber is bent more than a predetermined amount, The article cannot be transferred while being supported at a predetermined height. For this reason, it is conceivable to increase the rigidity of the entire brush by dramatically increasing the number of fibers, but this increases the cost and is difficult to realize.

  Also, an air levitation transport device that transports using air so as not to damage the article has been proposed. This air levitation transport device includes a plurality of fan filter units in which a fan and a filter are integrated. Is required. For this reason, it became disadvantageous in both aspects of equipment cost and running cost, and there were practical difficulties.

  Therefore, the present invention has been made in view of such circumstances, and provides an article support device capable of suppressing the occurrence of scratches while being able to transfer the article satisfactorily while being supported at a predetermined height. This is the issue.

  An article support device according to the present invention is configured to fix a base end portion of a brush in which a plurality of fibers are bundled to a base member, and to support an article transferred by the tip portion of the brush fixed to the base member. And the rigidity of the tip part of the at least some fibers is set smaller than the rigidity of other parts other than the tip part.

  According to the present invention, since the stiffness of the fiber tip is set to be smaller than the stiffness of other parts other than the fiber tip, when the article contacts the fiber tip, the tip is deformed. The position supporting the article is lowered. By this descending, when fibers having different heights are mixed, it is possible to increase the number of fibers supporting the article by contacting the tip portion of the short fibers. As a result, the weight supporting the article can be dispersed and supported by the increased number of fibers, and the weight supported by a single fiber can be reduced (reduced). It is possible to reliably suppress the number of scratches to be increased or the deepening of some of the scratches. In addition, since the other part than the tip part has higher rigidity than the tip part, it is not easily deformed by the weight of the article. Therefore, it is possible to guide the transfer while stably supporting the article at a predetermined height with the fibers.

  Moreover, in the article | item support apparatus which concerns on this invention, you may make it the taper shape which becomes thin toward the front end side of the said fiber.

  According to such a configuration, the rigidity of the tip end portion of the fiber can be set to be smaller than the rigidity of other portions other than the tip end portion only by making the tip end portion of the fiber taper so as to become thinner toward the tip end side. In addition, since the rigidity is weaker toward the front end side, the front end portion can be bent smoothly by immediately deforming the front end by contact with the article.

  Moreover, in the article | item support apparatus which concerns on this invention, it is preferable to set the ratio of the length of the said front-end | tip part with respect to the full length of the said fiber in the range of 8.3%-70.8%.

  In the article support device according to the present invention, the base end side of the brush in which a plurality of fibers are bundled is fixed to the base member, and the article to be transferred is supported by the tip end part of the brush fixed to the base member. The rigidity of some of the plurality of fibers may be set smaller than the rigidity of the other remaining fibers.

  According to this configuration, if the rigidity of some of the plurality of fibers is set to be smaller than the rigidity of the other fibers, the article contacts the tip of the fiber having a small rigidity. The contact tip is deformed and the support position of the article is lowered. When the fibers having different heights are mixed by this descending, the article comes into contact with the tip of the short fiber, and the supporting weight of the article can be dispersed by increasing the number of fibers supporting the article. it can. In addition, other fibers have greater rigidity than some of the fibers, so that they are not easily deformed by the weight of the article. Therefore, it is possible to guide the transfer while stably supporting while reliably suppressing an increase in the number of scratches generated on the article due to the adhesive wear, or a deepening of some of the scratches.

  Moreover, in the article | item support apparatus which concerns on this invention, the structure which made the said one part fiber taller than the said other remaining fiber may be sufficient.

  According to this configuration, if some of the fibers are made taller than the remaining other fibers, the article comes into contact with the tip of the tall fiber having small rigidity, and the tip of the contact is deformed. Then, the support position of the article is lowered. By this descending, the article comes into contact with the tip of the short fiber, and the supporting weight of the article can be dispersed by increasing the number of fibers supporting the article. In addition, other short fibers have higher rigidity than some of the fibers, so that they are not easily deformed by the weight of the article. Therefore, it is possible to guide the transfer while stably supporting while reliably suppressing an increase in the number of scratches generated on the article due to the adhesive wear, or a deepening of some of the scratches.

  Moreover, in the article | item support apparatus which concerns on this invention, the said one part fiber may be comprised from a fiber thinner than the thickness of another fiber.

  As described above, according to the present invention, the rigidity of the tip of the fiber is set to be smaller than the rigidity of other parts other than the tip, or the rigidity of some of the plurality of fibers is set to other By setting the fibers to be smaller than the rigidity of the fibers and configuring some of the fibers from taller fibers than the other fibers, the number of fibers supporting the article can be increased, and the article is supported accordingly. The weight can be dispersed and supported. Therefore, it is possible to provide an article support device that can suppress the occurrence of many scratches on the article or the deepening of some of the scratches.

(A) is a top view of the glass substrate inspection apparatus provided with the article | item support apparatus based on this invention, (b) shows the side view of the glass substrate inspection apparatus of (a). (A) shows the top view which abbreviate | omitted one part of the article | item support apparatus which concerns on this invention, (b) shows the II sectional view taken on the line in Fig.2 (a). It is explanatory drawing which shows the bending of the fiber which comprises the article | item support apparatus which concerns on this invention, (a) shows the state just before applying a load, (b) shows the state in which the fiber is bent by applying a load. It is explanatory drawing which shows the bending of the fiber which comprises the conventional article | item support apparatus, (a) shows the state just before applying a load, (b) shows the state in which the fiber is bent by applying a load. In the first embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush with a taper length of 0 mm and reciprocated 1000 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 2 mm and reciprocated 1000 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 7 mm and reciprocated 1000 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 12 mm and reciprocated 1000 times is shown. In the same embodiment, a copy of a photograph obtained by imaging the sample surface with a digital microscope when the sample is pressed against a brush having a taper length of 17 mm and reciprocated 1000 times is shown. The graph which shows the relationship with the evaluation value with respect to the frequency | count of reciprocation in 2nd embodiment. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush with a taper length of 0 mm and reciprocated five times is shown. In the same embodiment, a copy of a photograph obtained by imaging a sample surface with a digital microscope when the sample is pressed against a brush having a taper length of 0 mm and reciprocated 10 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush with a taper length of 0 mm and reciprocated 20 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged by a digital microscope when the sample is pressed against a brush having a taper length of 0 mm and reciprocated 30 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush with a taper length of 0 mm and reciprocated 40 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush with a taper length of 0 mm and reciprocated 50 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush with a taper length of 0 mm and reciprocated 100 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 2 mm and reciprocated five times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed 10 times against a brush having a taper length of 2 mm and reciprocated 10 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 2 mm and reciprocated 20 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged by a digital microscope when the sample is pressed against a brush having a taper length of 2 mm and reciprocated 30 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 2 mm and reciprocated 40 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 2 mm and reciprocated 50 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 2 mm and reciprocated 100 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged by a digital microscope when the sample is pressed against a brush having a taper length of 7 mm and reciprocated five times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed 10 times against a brush having a taper length of 7 mm and reciprocated 10 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 7 mm and reciprocated 20 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 7 mm and reciprocated 30 times is shown. In the same embodiment, a copy of a photograph obtained by imaging a sample surface with a digital microscope when the sample is pressed against a brush having a taper length of 7 mm and reciprocated 40 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 7 mm and reciprocated 50 times is shown. In the same embodiment, a copy of a photograph obtained by imaging the sample surface with a digital microscope when the sample is pressed against a brush having a taper length of 7 mm and reciprocated 100 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 12 mm and reciprocated five times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed 10 times against a brush having a taper length of 12 mm and reciprocated 10 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged by a digital microscope when the sample is pressed against a brush having a taper length of 12 mm and reciprocated 20 times is shown. In the same embodiment, a copy of a photograph obtained by imaging the sample surface with a digital microscope when the sample is pressed against a brush having a taper length of 12 mm and reciprocated 30 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 12 mm and reciprocated 40 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 12 mm and reciprocated 50 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged by a digital microscope when the sample is pressed against a brush having a taper length of 12 mm and reciprocated 100 times is shown. In the same embodiment, a copy of a photograph in which the sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 17 mm and reciprocated five times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed 10 times against a brush having a taper length of 17 mm and reciprocated 10 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 17 mm and reciprocated 20 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 17 mm and reciprocated 30 times is shown. In the same embodiment, a copy of a photograph obtained by imaging the sample surface with a digital microscope when the sample is pressed against a brush having a taper length of 17 mm and reciprocated 40 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 17 mm and reciprocated 50 times is shown. In the same embodiment, a copy of a photograph in which a sample surface is imaged with a digital microscope when the sample is pressed against a brush having a taper length of 17 mm and reciprocated 100 times is shown.

  Hereinafter, an embodiment of an article support device according to the present invention will be described with reference to the drawings.

<First embodiment>
As shown in FIGS. 2 (a) and 2 (b), the article support device is composed of a large number of brushes 2 having base ends fixed to the base member 1 at predetermined intervals. The article (plate material) 3 to be transferred can be supported.

  Further, as shown in FIG. 1, the article support device is used in preparation for a glass substrate inspection apparatus that inspects a scratch or the like on the surface of the glass substrate that is the article 3. The article support device is configured by two large and small brush boards 11 and 12 erected by a large number of legs 21 for supporting the glass substrate 3 to be transferred. A cutout portion 11A is formed in a part of the large brush board 11 so that the light from the projector 13 disposed below the brushboard 11 can be irradiated to the glass substrate 3 through the cutout portion 11A. ing.

  The glass substrate inspection apparatus includes a first roller conveyor 14 for conveying the glass substrate 3 to the two large and small brush boards 11 and 12, and a glass substrate that has been inspected by being conveyed to the inspection position by the first roller conveyor 14. A second roller conveyor 15 that conveys 3 to another specific location, an imaging means 17 comprising a projector 16 and a camera 16 that receives light from the projector 13 and images the glass substrate 3, and a glass substrate And moving means 18 for taking an image while moving 3 with respect to the camera 16. In addition, in FIG. 1, although the glass substrate test | inspection apparatus is shown, a glass substrate cutting device may be used and you may incorporate and use it for other various apparatuses.

  The moving means 18 includes a plurality (five in FIG. 1) of gripping portions 19 that grip one end of the glass substrate 3, and a plurality of (see FIG. 1) for moving in the X and Y directions on the plane while being gripped by the gripping portion 19. In this case, two drive units 20 are provided.

  The brushes 2 constituting the brush boards 11 and 12 are staggered on the base member 1 as shown in a plan view of FIG. 2A, and each brush 2 is made of synthetic resin polybutylene terephthalate (PBT). A plurality of fibers 4 having a diameter of 0.2 mm (0.1 mm to 0.3 mm) (here, 400 but may be 200 to 500) are bundled, and then vertically A disc-shaped flange portion 4F is formed by melting the lower end (base end) which is one end of the disc by heating. In addition, the length L from the upper end surface (base end) of the flange 4F of the fiber 4 to the tip is set to 24 mm. In FIG. 1, the brushes 2 are arranged in a staggered manner on the base member 1. However, the base members 1 may be arranged in a matrix with predetermined intervals in the vertical and horizontal directions, and the random positions of the base member 1 are unequal. They may be arranged at intervals.

  The base member 1 is extended obliquely upward (toward the center of the opening toward the upper end side) by subjecting the through hole 5K punched and formed at a position where the brush 2 is mounted to a burring process. The upper plate member 5 provided with the upright portion 5A, and the brush 2 is inserted into the through hole 5K of the upper plate member 5 from the back surface opposite to the surface on the upright portion 5A side from the tip thereof, and then the upper plate member 5 The lower plate member 6 is integrated with the lower surface side, and sandwiches and fixes the flange portion 4F of the brush 2 with the upright portion 5A of the upper plate member 5.

  The rigidity of the tip 4A of each fiber 4 constituting the brush 2 is set to be smaller than the rigidity of the other part 4B other than the tip 4A. In other words, the tip 4A of each fiber 4 is configured to be more easily deformed than the other part 4B other than the tip 4A. Specifically, by making the distal end portion 4A of the fiber 4 into a tapered shape that becomes thinner toward the distal end side (see FIG. 3A), the rigidity of the distal end portion 4A is made higher than the rigidity of the other portion 4B other than the distal end portion 4A. Can also be reduced. Here, the distal end portion 4A is a tapered portion from the distal end to a position where the diameter of the fiber 4 is maximum, and the other portion 4B is from the position where the diameter of the distal end portion 4A is maximum to the proximal end of the fiber 4. It is a rod-shaped part having the same diameter.

  By configuring each fiber 4 as described above, the number of fibers supporting the article can be increased. For example, as shown in FIG. 3A, when fibers having different heights are mixed, a sample is obtained with respect to one fiber 41 having a tall height and two fibers 42, 42 having a shorter height. When pressing 7 (corresponding to the glass substrate of the article 3), as shown in FIG. 3B, the rigidity of the tip 4A is smaller than the rigidity of the other part 4B other than the tip 4A. It curves at the boundary portion 4C between the tip portion 4A and the other portion 4B. Due to this bending, the tip portion 4A falls so that the tip position of the tip portion 4A of the tall fiber 41 is lowered, so that the lower surface of the sample 7 comes into contact with the tips of the two short fibers 42, 42, The sample 7 can be supported by the three fibers 41, 42, 42. In particular, when the tip portion 4A of the tall fiber 41 falls down (sleeps), the side surface (outer peripheral surface) of the tip portion 4A of the tall fiber 41 comes into contact with the lower surface of the sample 7, It becomes difficult to get scratched.

  On the other hand, three conventional fibers 43, 44 and 44 are shown in FIGS. 4 (a) and 4 (b). As shown in FIG. 4 (a), a single rod-like tall fiber 43 having the same diameter from the distal end to the proximal end, and a shorter fiber having the same diameter from the distal end to the proximal end in the same manner as the fiber 43. When the sample 7 (corresponding to the article 3) 7 is pressed against the two rod-shaped fibers 44, 44, the rigidity of the tall fiber 43 is the same from the distal end to the proximal end. In this way, the fiber 43 bends at the proximal end portion 43A. In this case, since the radius of curvature is large, the downward movement amount of the tip of the fiber 43 is small with respect to the bending angle. For this reason, the lower surface of the sample 7 is not in contact with the tips of the two short fibers 44, 44, and the sample 7 is supported only by the single tall fiber 43. Therefore, as shown in FIG. 3B, by supporting the sample 7 with the three fibers 41, 42, 42, the sample 7 can be dispersed with the three fibers 41, 42, 42. As shown in FIG. 3B, as shown in FIG. 3B, as shown in FIG. It is possible to suppress the occurrence of scratches on the lower surface of the sample 7 by transporting while being dispersedly supported by the fibers 41, 42, 42.

  There are four types of brushes (2 mm, 7 mm, 12 mm, and 17 mm) with different lengths at the tip part formed in the taper shape, and a total of five types of brushes as a comparative example. The experiment on the generation of scratches was performed.

  First, as described above, the experiment on the generation of scratches is performed by bundling 400 fibers, for example, and then melting one end (base end) to provide a brush having a disk-like flange portion. It fixes to fixed members, such as a member. Thus, five types of brushes were prepared, and a glass sample set so that the load was 100 g and the length was 8 cm × width 15 cm × height (thickness) 0.1 cm (FIG. 3 ( b) Reference) After reciprocating (speed: 100 mm / sec) a predetermined number of times (1000 times × travel distance is 130 mm), the lower surface of the sample was imaged with a digital microscope, and the image obtained by the imaging was generated visually. The thickness and number of wounds were confirmed. When the length from the base end to the tip of the fiber is 24 mm, the ratio of the taper (tip portion) from 2 mm to 17 mm with respect to the total length of the fiber is from 8.3% to 70.8%. It becomes the range. Here, the length from the base end to the tip end of the fiber is 24 mm, but it is not limited to this length and may be set to any length. In this case, the length of the taper (tip portion) is set so that the ratio of the taper (tip portion) to the total length of the fiber is in the range of 8.3% to 70.8%. Is preferred.

  Images taken with a digital microscope are shown in FIGS. FIG. 5 shows a scratch on the surface of the sample formed by pressing the glass sample against a (conventional) rod-shaped brush having the same diameter from the tip to the base, and performing 1000 reciprocations as described above. It is shown. In FIG. 6, a glass sample is pressed against a brush when the length of the tapered tip portion according to the present invention (hereinafter referred to as the taper length) is 2 mm, and the reciprocating motion is performed 1000 times. Scratches on the finished sample surface are shown. Further, FIG. 7 shows a scratch on the surface of the sample formed by pressing the glass sample against the brush when the taper length of the present invention is 7 mm and reciprocating 1000 times. Further, FIG. 8 shows scratches on the sample surface formed by pressing the sample against the brush when the taper length of the present invention is 12 mm and performing reciprocation 1000 times. Further, FIG. 9 shows a scratch on the surface of the sample formed by pressing the sample against the brush when the taper length of the present invention is 17 mm and reciprocating 1000 times. White lines formed in the vertical direction over the entire area of the paper are scratches formed on the sample surface.

  Considering the scratches in FIGS. 5 to 9, the conventional rod-shaped brush in FIG. 5 has not only the largest number of scratches but also the deepest and clearest scratch depth. On the other hand, when the taper length of the present invention in FIG. 6 is 2 mm, the number of scratches is smaller than the number of scratches in FIG. 5 and the depth of the scratches is also shallow. When the taper length of the present invention in FIG. 7 is 7 mm, the number of scratches is smaller than the number of scratches in FIG. 6 and the depth of the scratches is also shallow. When the taper length of the present invention in FIG. 8 is 12 mm, the number of scratches is smaller than the number of scratches in FIG. 7 and the depth of the scratches is also shallow. When the taper length of the present invention of FIG. 9 is 17 mm, it is considered that there is no scratch line and scratches are difficult to be made.

<Second embodiment>
In the first embodiment, the case where the article support device is used in a glass substrate cutting device or a glass substrate inspection device has been described. However, the article support device may be mounted on a press machine which is an example of an article processing machine. Then, in order to move the metal article 3 to a predetermined position and perform punching or the like, the article 3 is gripped by a clamp device (not shown), and the lower surface of the article is slidably guided when transported on the table. The article support device is arranged as described above. In addition, since the specific structure of an article | item support apparatus and a brush is the same as what was shown in FIG.1 and FIG.2, description is abbreviate | omitted.

  First, as described above, the experiment on the generation of scratches is performed by bundling 400 fibers, for example, and then melting one end (base end) to provide a brush having a disk-like flange portion. It fixes to fixed members, such as a member. Thus, five types of brushes were prepared, and a metal sample set so that the load was 50 g and the height 8 cm × width 15 cm × height (thickness) 0.1 cm was pressed against each brush (FIG. 3 ( b) Reference) After reciprocating (speed 100mm / sec) a predetermined number of times (7 times: 5, 10, 20, 30, 40, 50, 100), the bottom surface of the sample is digital Images taken with a microscope, the thickness and number of scratches generated by visual observation of the images obtained by the imaging were confirmed, and the results of evaluation based on them were shown in tables and graphs. The table is shown in Table 1, and the graph is shown in FIG. When the length from the base end to the tip of the fiber is 24 mm, the ratio of the taper (tip portion) from 2 mm to 17 mm with respect to the total length of the fiber is from 8.3% to 70.8%. It becomes the range.

  Images captured by the digital microscope are shown in FIGS. In FIGS. 11 to 17, a metal sample is pressed against a (conventional) rod-shaped brush having the same diameter from the distal end to the proximal end, and 5, 10, 20, 30, 40, 50 times. , Scratches on the sample surface formed by performing 100 reciprocations are shown. In FIGS. 18 to 24, the sample is pressed against the brush when the length of the tapered tip portion of the present invention (hereinafter referred to as the taper length) is 2 mm, 5 times, 10 times, 20 times, The scratches on the sample surface formed by reciprocating 30 times, 40 times, 50 times, and 100 times are shown. In FIGS. 25 to 31, the sample is pressed against the brush when the taper length of the present invention is 7 mm, and the reciprocation is performed 5, 10, 20, 30, 40, 50, 100 times. Each of the scratches on the sample surface formed by the movement is shown. Further, in FIGS. 32 to 38, the sample is pressed against the brush when the taper length of the present invention is 12 mm, and the reciprocation is performed 5, 10, 20, 30, 40, 50, 100 times. Each of the scratches on the sample surface formed by the movement is shown. Further, in FIGS. 39 to 45, the sample is pressed against the brush of the present invention when the taper length is 17 mm, and the reciprocation is performed 5, 10, 20, 30, 40, 50, 100 times. Each of the scratches on the sample surface formed by the movement is shown. The black lines formed in the horizontal direction on the entire area of the paper surface are fine irregularities (hair lines) formed on the sample surface, and the white lines formed in the vertical direction on the paper surface were formed on the sample surface. It is a wound.

  If Table 1 and FIG. 10 are demonstrated, the scratch evaluation value is first set to 1 to 10 steps. Evaluation value 1 is a case where a thin broken line is formed. Evaluation value 2 is a case where a thin solid line is formed. Evaluation value 3 is a case where 2 or more and 10 or less thin solid lines are formed. Evaluation value 4 is a case where a large number (more than 10) of thin solid lines are formed. Evaluation value 5 is the case where a dark solid line is formed. Evaluation value 6 is a case where two or more and three or less dark solid lines are formed. The evaluation value 7 is a case where 4 or more and 5 or less dark solid lines are formed. Evaluation value 8 is a case where 6 or more and 10 or less dark solid lines are formed. The evaluation value 9 is a case where a large number (11 or more) of dark solid lines are formed. The evaluation value 10 is a case where a dark solid line is formed on the entire bottom surface of the sample. Table 1 shows the evaluation values for the five types of brushes. The taper length of 0 mm is the case of a conventional rod-like brush having no taper and having the same diameter from the distal end to the proximal end. As shown in Table 1, the brush of the present invention with a taper has a better evaluation of scratches than a straight brush without a taper, and the brush with a longer taper has a better evaluation and is less likely to be scratched. I understand. In other words, the higher the number of reciprocations, the worse the evaluation of scratches. The total number of all evaluation values is 43 for a brush without a taper, and the taper length is 2 mm. 38 when the taper length is 7 mm, 26 when the taper length is 12 mm, and 17 when the taper length is 17 mm. From this, it can be seen that a brush with a taper has a better evaluation of scratches than a straight brush without a taper, and that a brush with a longer taper has a better evaluation and is less susceptible to scratches. The graph of FIG. 10 is graphed to make Table 1 easier to understand. The greater the number of reciprocations, the worse the evaluation of scratches, and the brush with the taper rather than the straight brush without the taper. It is clear that the evaluation of scratches is better, and the longer the taper length, the better the evaluation, and it is difficult to scratch.

  The article support device according to the present invention is not limited to the first and second embodiments described above, and various modifications can be made without departing from the gist of the present invention.

  For example, the fiber may be composed of polybutylene terephthalate (PBT), or may be composed of various synthetic resins, or other synthetic resins or materials different from synthetic resins may be added to various synthetic resins. You may comprise from what did.

  In the first and second embodiments, only four types of taper lengths of 2 mm, 7 mm, 12 mm, and 17 mm are shown, but the taper length may be any length, but from 2 mm It is preferable to set between 17 mm. Moreover, although the front-end | tip part of all the fibers 4 which comprise the brush 2 was made to taper, only the front-end | tip part of some fibers 4 is made to taper, and the remaining fiber becomes the same diameter from an upper end to a lower end (base end). There may be. In this case, the tapered fiber 4 is preferably 50% or more of the whole. In addition, the tip of the fiber 4 is tapered so that the rigidity of the tip of the fiber 4 is changed in multiple stages in the vertical direction, but the thickness is configured in two or more stages. By doing so, you may change the rigidity of the front-end | tip part of the fiber 4 to the multistage of two steps or three steps or more by the up-down direction. Moreover, the structure which provides not only the front-end | tip part of the fiber 4 but the whole length of the fiber 4 may be sufficient. In this case, the taper may be such that the diameter gradually decreases from the proximal end (lower end) to the distal end (upper end), or the diameter changes in multiple stages such that the diameter decreases in multiple stages toward the distal end side. It may be a taper. In addition, the direction which comprised the brush with the fiber with a long taper length (in the two embodiments, the longest fiber is 17 mm) tends to cause the tip of the fiber to fall down. For this reason, although the height which supports articles | goods becomes low compared with the case where a brush is comprised with the fiber (fiber which becomes short in order of 12 mm, 7 mm, and 2 mm in two embodiments) with a short taper length, it is the same taper. By constructing the brush with fibers of a length, the amount of tip-down of the fibers becomes the same, so that the article can be stably supported at a predetermined height.

  In the first and second embodiments, the fiber 4 is tapered so that the rigidity of the tip of the fiber 4 is smaller than the rigidity of the part other than the tip. It is made up of fibers that are thinner than the thickness (diameter) of the remaining remaining fibers (diameter), and the thin fibers are made taller than the remaining remaining fibers (thick fibers), so that they are less rigid due to contact with the article. Since the fine fibers are easily deformed and the article is lowered, the article is also brought into contact with the tip of another short fiber (thick fiber), and the number of fibers in contact with the article can be increased. Therefore, it is possible to increase the contact area with the fibers during conveyance of the article, and to avoid the occurrence of scratches on the article. In addition, if the proportion of thin fibers with low rigidity is larger than that of fibers with high rigidity (for example, preferably between 60% and 80%), the other fibers that leave thin fibers with low rigidity as described above ( Even if the height of the fiber is not higher than that of the thick fiber), the ratio of the fiber having a large rigidity (thick fiber) is small, so that the number of fibers contacting the article can be increased by contact with the article. As described above, it is preferable that the thin fibers remain taller than the other fibers (thick fibers) so that the fibers can be smoothly deformed. However, other fibers (thick fibers) that leave the thin fibers remain. It is also possible to carry out without increasing the height. Further, the thickness (diameter) of some of the fibers 4 constituting each brush may be composed of fibers that are thinner than the remaining fibers (diameter), or may be composed of thick fibers. The article support apparatus which fixed to the base member the brush comprised by the made brush and the tall fiber taller than this may be sufficient. In this case, the ratio of the number of brushes made of thick fibers and the brush made of thin fibers and the position where the two types of brushes are fixed are set so that the article can be favorably supported at a predetermined height. Will do.

  In the first embodiment, a scratch test is performed on a glass sample. In the second embodiment, a scratch test is performed on a metal sample. However, a synthetic resin sample (plate or film) is tested. The present invention can also be applied to a scratch test. Naturally, the number of scratches on the sample made of synthetic resin is less when the brush is constituted by the fibers 4 having the taper of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Base member, 2 ... Brush, 3 ... Article, 4 ... Fiber, 4A ... Tip part, 4B ... Other part, 4C ... Boundary part, 4F ... Flange part, 5 ... Upper plate member, 5A ... Upright part, 5K ... through hole, 6 ... lower plate member, 7 ... sample, 41, 42, 43, 44 ... fiber, 43A ... part

Claims (6)

An article support device for fixing a base end portion of a brush in which a plurality of fibers are bundled to a base member and supporting an article transferred by a tip end portion of the brush fixed to the base member,
The article support apparatus according to claim 1, wherein a rigidity of a tip portion of at least a part of the fibers is set to be smaller than a rigidity of a portion other than the tip portion.   The article support apparatus according to claim 1, wherein a tip end portion of the fiber is tapered toward the tip end side.   The article support device according to claim 1 or 2, wherein a ratio of a length of the tip portion to a total length of the fiber is set in a range of 8.3% to 70.8%. An article support device for fixing a base end side of a brush in which a plurality of fibers are bundled to a base member, and supporting an article transferred by a tip end portion of the brush fixed to the base member,
The article supporting apparatus according to claim 1, wherein the rigidity of some of the plurality of fibers is set to be smaller than the rigidity of other remaining fibers.   5. The article support device according to claim 4, wherein the part of the fibers is taller than the remaining other fibers.   The article supporting apparatus according to claim 4 or 5, wherein the part of the fibers is made of a fiber that is thinner than the remaining other fibers.