TWI593610B - Glass plate holder, glass plate? movement restriction device, and glass article production method - Google Patents

Description

Glass plate holder, glass plate movement limiting device, and method for manufacturing glass articles

The present invention relates to a glass plate holder, a glass sheet movement restricting device, and a method of manufacturing a glass article.

In the past, a glass plate was transported using a tray on which a glass plate was placed or a glass plate holder holding a glass plate. Patent Document 1 discloses, for example, a glass plate holder that holds a glass plate treated with a chemical strengthening liquid or the like. [Prior Art Document] [Patent Document] [Patent Document 1] Japanese Patent Laid-Open Publication No. 2010-118090.

The glass plate holder disclosed in Patent Document 1 is suitable for holding a small glass plate such as a disk type recording medium, and when a large and thin glass plate is held, deflection deformation of the glass plate is likely to occur. Therefore, it is difficult to stably hold the glass plate on the glass plate holder. For example, in the operation of holding the glass sheet on the glass sheet holder or the glass sheets held on the glass sheet holder, problems such as breakage or damage due to contact occur during transportation.

An object of the present invention is to provide a glass plate holder, a glass plate movement restricting device, and a method for producing a glass article which can stably hold a glass plate.

The glass plate holder of the present invention is characterized in that: a holder body for holding a glass plate for processing the glass sheet; and at least one restricting member for restricting movement of the glass sheet relative to the holder body; The main body is provided with a slot into which the glass plate can be inserted, and the at least one restricting member is configured to insert the slot in the restricting position for restricting the movement of the glass plate received in the slot and the glass plate Move between unrestricted positions of unloading.

According to this configuration, since the movement of the glass sheet can be restricted by the restricting member that moves at the above-described restriction position, the flexural deformation of the glass sheet that has been received in the slot can be suppressed. Here, the movement of the glass plate is restricted to restrict the movement of one portion of the glass plate relative to the other portion due to the deflection of the glass plate.

In one example, the holder main body includes a plurality of slots that can receive a plurality of glass sheets, and the at least one restriction member includes first and second restriction members that are movable independently of each other.

Here, in the state in which the first glass plate that has been received in the first slot is restricted from moving by the regulating member, the second glass plate can be easily evaded by being inserted into the second slot adjacent to the first glass plate. The collision of the second glass plate with the first glass plate. Further, for example, in a state in which the second glass plate that has been received in the second slot restricts the movement of the member, the third glass plate can be easily inserted into the third slot of the adjacent second glass plate. 3 The impact of the glass plate on the second glass plate. When the movement of the glass sheet as described above is sequentially restricted by the restriction member, by using the first restriction member and the second restriction member in an interactive manner, one of the first restriction member and the second restriction member can be made to the next piece. Prepare the glass plate to be restrained to wait in an unrestricted position. Thereby, the time until the glass plate is inserted into the slot to the limit of the restriction member can be shortened.

In one example, each of the first restricting member and the second restricting member is configured to be movable to a plurality of restricted positions corresponding to the number of the plurality of slots, and to restrict movement of the plurality of sheets of glass, the at least one limitation The member further includes a third restricting member that is independently movable with respect to one of the first restricting member and the second restricting member, and the third restricting member is movable to a plurality of glass plates for restricting reception to the plurality of slots The restricted position of the move.

According to this configuration, the movement of all the glass sheets that have been received in the slots is restricted by the third restricting member, when transporting the holder body of the glass sheet, or processing the glass sheet held on the holder body During the processing process, the deflection of all glass sheets can be suppressed.

In one example, the holder body includes a body frame, a lower end support portion fixed to the body frame and supporting a lower end portion of the glass sheet, and a side end holding portion fixed to the body frame and holding both end portions of the glass sheet; The side end holding portion includes or is formed with the above-described slot; the at least one restricting member has a concave portion that receives an upper end portion of the glass sheet, and the concave portion has a shape in which the width is narrower toward the inner deep portion.

According to this configuration, when the restricting member is moved to the above-mentioned restricting position, the upper end portion of the glass sheet will hardly collide with the open end of the concave portion, and the restriction member of the restricting position can be restricted to restrict the accuracy of the movement of the glass sheet.

In one example, the at least one restriction member has a crawler structure including a belt body and a roller.

According to this configuration, the movement of the glass sheet can be sequentially restricted by operating the restricting member having the crawler structure each time the glass sheet is inserted into the slot.

In one example, the holder body has a shape that maintains a glass plate having a ratio (L/t) of one side dimension (L) to a thickness (t) of 500 or more.

In one example, the shape of the holder main body is such that a glass plate having a side dimension of 1000 mm or more and a thickness of 1.5 mm or less can be held.

When the glass sheet has a relationship between the side dimension and the thickness as described above, the deflection deformation is more likely to occur. Therefore, in particular, the above glass plate holder is used, which is more advantageous for the glass plate.

According to another aspect of the present invention, a glass sheet movement restricting device is used together with a holder body having a slot for receiving a glass sheet for processing a glass sheet, and includes: at least one restricting member configured to be limited a restriction position of the movement of the glass sheet that has been received in the aforementioned slot and an unrestricted position in which the glass plate can be inserted and removed from the slot; at least one drive portion mechanically coupled to the at least one of the aforementioned restrictions The member moves the at least one restriction member to the restricted position and the unrestricted position.

According to this configuration, since the movement of the glass sheet is restricted by the restricting member moved to the above-described restriction position, the flexural deformation of the glass sheet that has been received into the slot is suppressed. Further, since the movement of the restriction member from the unrestricted position toward the restriction position is automated by the drive portion, it is advantageous to reduce the cost of maintaining the process.

In one example, the holder body includes a plurality of slots that can receive a plurality of glass sheets, and the at least one restriction member includes first and second restriction members that are movable independently of each other, and the at least one drive unit includes: moving the first The first driving unit of the restricting member and the second driving unit that moves the second restricting member.

According to this configuration, the time from the insertion of the glass sheet to the slot to the restriction of the restriction member can be shortened.

Still another aspect of the present invention is a method for manufacturing a glass article, comprising: maintaining a process for holding at least one glass sheet in a holder body; and processing a process to maintain at least one glass sheet of the holder body. The holder body is provided with a plurality of slots for receiving a plurality of glass sheets, and at least one restriction member is used in the holding process, the restriction member is configured to: limit at least one selected from the plurality of slots The restricted position of movement of one of the glass sheets in the slot is selected to move between the unrestricted positions in which the aforementioned one of the glass sheets can be inserted and removed.

According to this method, since the movement of the glass sheet is restricted by the restricting member that has moved to the above-described restriction position, the flexural deformation of the glass sheet that has been received into the slot is suppressed.

In one example, the holding process includes: inserting the first glass sheet into the first slot in the first stage; and inserting the second glass sheet into the first slot of the first glass sheet that has been received in the second stage The second slot is adjacent to the second slot; and the second step is performed in a state where the at least one restriction member is positioned at a position restricted to the first glass sheet.

According to this method, when the movement of the first glass sheet that has been received in the slot is restricted by the restricting member, the second glass sheet is inserted into the slot adjacent to the slot that has received the first glass sheet. In this case, it is formed so that the collision of the second glass sheet with the first glass sheet can be easily avoided.

In one example, the at least one restriction member includes first and second restriction members that are independent of each other and movable, and the holding process includes a third stage in which the third glass plate is held in the third slot, and the third slot The second stage is adjacent to the second slot in which the second glass sheet is received, and the second stage is performed in a state where the first restriction member is in a restricted position on the first glass sheet, and the third stage is in the second stage. The restriction member is placed in a state in which the position of the second glass plate is restricted.

According to this method, when the glass plate is restricted by the restriction member in sequence, by using the first restriction member and the second restriction member in an interactive manner, one of the first restriction member and the second restriction member can be waited for An unrestricted position of a glass plate to be restricted. Thereby, the time from when the glass sheet is inserted into the slot to the limit of the member can be shortened.

In one example, in the holding process, all of the glass sheets held on the holder body are in a restricted state restricted by the at least one regulating member, and the glass sheet in the restricted state is subjected to the above-described processing.

By this method, it is possible to suppress the flexural deformation of the glass sheet from the holding process to the transfer or treatment process to the processing process in the manufacturing method of the glass article.

In one example, the treatment process is a process in which the glass plate held in the holder body is immersed in the chemical strengthening liquid, and the heat treatment has been maintained on the glass plate of the holder body, and the cleaning has been maintained in the foregoing. The process of holding the glass sheet of the body and drying the at least one process selected in the process of maintaining the glass sheet of the holder body.

By this method, the deflection of the obtained glass article can be suppressed.

A preferred embodiment is provided with: a holder body having a plurality of slots formed at a predetermined pitch for receiving a plurality of glass sheets for processing by the glass sheet; at least one movable arm including the slot a plurality of contact faces formed by the same pitch at the same pitch, for contacting the plurality of glass plates at positions different from the plurality of slots; and a control portion; the control portion is configured to generate the at least A control signal for the movable arm to advance at a moving distance of an integral multiple of the specified pitch for sequentially moving the at least one movable arm to a plurality of restricted positions corresponding to the plurality of glass sheets.

According to this system, it is possible to keep the state of the movement of the glass sheet which has been inserted into the slot to be restricted, and at the same time, to quickly restrict the movement of the glass sheet which has been inserted into the slot.

For example, the at least one movable arm includes first and second movable arms, and the control unit is configured to advance the first and second movable arms interactively by an integral multiple of the predetermined pitch. In another example, the at least one movable arm includes a belt-type restricting member including a belt body that forms a plurality of contact faces, and the control unit is configured to advance the crawler belt-type restricting member at the predetermined pitch.

With the present invention, the glass sheet can be stably held. Other aspects and advantages of the present invention will be apparent from the following description of the embodiments of the invention.

Hereinafter, an embodiment of a glass plate holder, a glass sheet movement restricting device, and a method for producing a glass article will be described with reference to Figs. 1 to 7 . Further, in the present embodiment, the chemical strengthening treatment of the glass sheet will be described. However, the glass sheet holder, the glass sheet movement restricting device, and the method for producing the glass article may be applied to other treatments of the glass sheet.

<Summary of glass plate holder>

As shown in Fig. 1, the glass plate holder 11 is provided with a holder or a holder body 21 for holding the glass sheet G when the glass sheet G is treated with a chemical strengthening liquid. The holder body 21 includes a body frame 31, a lower end support portion 41 fixed to the body frame 31 and supporting the lower end portion of the glass sheet G, and a side end holding portion fixed to the body frame 31 and holding both end portions of the glass sheet G. 51. The side end holding portion 51 is provided with a plurality of slots S that can receive a plurality of glass sheets G. The plurality of track slots S may be formed by a specified pitch at which a certain pitch is obtained. The glass plate holder 11 is provided with a regulating member 61 that restricts the movement of the end portion Ga of the glass sheet G. The restricting member 61 may be an elongated member. The restricting member 61 may include a plurality of contact faces formed by the same specified pitch as the slot S. Each of the contact faces is in contact with the glass sheet G at a position different from the lower end support portion 41 and the side end holding portion 51.

<Main body frame of the holder body>

The body frame 31 of the holder body 21 has a square frame 32 having a quadrangular shape, a side frame 33 standing at four corners of the bottom frame 32, and a quadrangular upper frame 34 connecting the upper ends of the side frames 33. The material of the main body frame 31 is not particularly limited as long as it is a material resistant to the chemical strengthening liquid, and the main body frame 31 of the present embodiment is made of stainless steel (SUS304). In the glass plate holder 11, the portion immersed in the chemical strengthening liquid is the same as the main body frame 31, and is made of a chemically resistant liquid. However, the portion that is not immersed in the chemical strengthening liquid is For example, it may be composed of a resin material (polyamide or the like).

<Holding body lower end support portion and side end support portion>

The lower end support portion 41 of the holder body 21 is disposed to span between the bottom frames 32, and both end portions of the lower end support portion 41 are fixed to the bottom frame 32. From the viewpoint of stably supporting the lower end portion of the glass sheet G at a plurality of places and securing the flow path of the chemical strengthening liquid, it is preferable that the lower end supporting portion 41 is provided in plural at intervals, as disclosed in the present embodiment. The shape of the lower end support portion 41 is not particularly limited, and examples thereof include a plate shape, a square column shape, and a column shape.

The side end holding portions 51 of the holder body 21 are disposed to span between the side frames 33, and both end portions of the side end holding portions 51 are fixed to the side frames 33. The side end holding portion 51 has a side end insertion recess 51a that receives the side end portion of the glass sheet G. The side end insertion recess 51a has a shape in which the width is formed deeper toward the inner deep portion, but the shape of the side end insertion recess 51a is not particularly limited.

The side end holding portions 51 are disposed to face each other to hold the both end portions of the glass sheet G. Specifically, the body frame 31 is provided with at least one first side end holding portion 52 that holds one end portion of the glass sheet G, and at least one second portion that holds the other end portion of the glass sheet G. Side end holding portion 53. The slot S is formed by the side end insertion recess 51a of the first side end holding portion 52 and the side end insertion recess 51a of the second side end holding portion 53 disposed opposite thereto. In the illustrated example, the first side end holding portions 52 are vertically spaced apart and can be used as a plurality of first side end holding portions that are in contact with both end portions of the glass sheet G at different heights. The same applies to the second side end holding portion 53.

<Restricted member of glass plate holder>

The restricting member 61 of the glass plate holder 11 is not fixed to the body frame 31, but is movable relative to the body frame 31. The restricting member 61 is configured to be between a restricted position that restricts movement of the glass sheet G that has been received in the slot S relative to the slot, and an unrestricted position that can insert and detach the glass sheet G from the slot S. mobile.

The restricting member 61 has an upper end insertion recess 61a that receives the upper end portion Ga of the glass sheet G. Each of the upper end insertion recesses 61a has a shape in which the width is formed narrower toward the inner deep portion. The upper end insertion recess 61a may also include a sloped surface and/or a curved surface as a contact surface.

The restriction member 61 includes a first restriction member 62 , a second restriction member 63 , and a third restriction member 64 . The first restricting member 62, the second restricting member 63, and the third restricting member 64 are configured to be independently movable.

The position of the first restricting member 62 shown in Fig. 1 refers to a restricted position that restricts the movement of the first glass sheet G1. At this restricting position, the concave portion 61a is inserted in order to insert the upper end portion Ga of the glass sheet G into the upper end of the restricting member 61. The position of the second restricting member 63 and the position of the third restricting member 64 shown in FIG. 1 form an unrestricted position in which the first glass sheet G1 is not restricted.

When the glass sheet G is held in the holder main body 21 in this order, the first restricting member 62 and the second restricting member 63 are used to restrict the movement of the upper end portion Ga of the glass sheet G.

The third restricting member 64 is for restricting the movement of the upper end portion Ga of the entire glass plate G that has been received in the slot S. In other words, the third restricting member 64 is used when the holder body 21 that has held the glass sheet G is supplied to the chemical strengthening liquid. The third restricting member 64 is used in conjunction with the holder body 21 to provide a process for treating the glass sheet G with a chemical strengthening liquid. The third restricting member 64 preferably includes a detachable portion and is detachably fixed to the holder main body 21 (for example, the upper frame 34). Examples of the attaching and detaching portion include a engaging claw that is locked to the upper frame 34, a fastening portion that is fixed to the upper frame 34 by a fastening member such as a bolt, and the like.

<Glass plate movement restriction device>

As shown in Fig. 1, the glass sheet movement restricting device 71 that holds the glass sheet G in the holder body 21 is formed in the restricting member 61 of the glass sheet holder 11 so that the first restricting member 62 and the second restricting member are configured. 63 mobile devices. The glass sheet movement restricting device 71 includes a first driving unit 81 that moves the first restricting member 62 and a second driving unit 91 that moves the second restricting member 63. The control unit C included in the glass sheet movement restricting device 71 controls the first driving unit 81 and the second driving unit 91.

The first drive unit 81 is a restriction position and an unrestricted position in which the first restriction member 62 is moved to the glass sheet G. The second drive unit 91 is a restriction position and an unrestricted position in which the second restriction member 63 is moved to the glass sheet G.

The first driving unit 81 includes a first vertical driving unit 82 that moves the first regulating member 62 in the vertical direction D1 along the main surface of the glass sheet G, and the first horizontal driving unit 83 causes the first restricting member 62 to be in the glass. The thickness direction of the plate G, that is, the horizontal direction D2 moves. The second drive unit 92 also includes a second vertical drive unit 92 that moves the second restriction member 63 in the vertical direction D1, and a second horizontal drive unit 93 that moves the second restriction member 63 in the horizontal direction D2.

The control unit C of the glass sheet movement restricting device 71 is provided with a storage unit for associating the positions of the first restricting member 62 and the second restricting member 63 with the position of the glass sheet G held by the holder main body 21. The memory controls the first drive unit 81 and the second drive unit 91 based on the information of the memory unit. Further, the control unit C may be configured to control the first drive unit 81 and the second drive unit 91 in accordance with input information from a sensor that detects the position of the glass sheet G. The first drive unit 81 and the second drive unit 91 of the glass sheet movement restricting device 71 are driven by, for example, a motor or a fluid pressure.

<glass plate>

The glass plate holder 11 and the glass sheet movement restricting device 71 are particularly advantageous for the use of the glass sheet G for maintaining a large amount of deformation of the flexural deformation. The glass plate G having a large amount of deformation of the flexural deformation includes a glass plate G having a size of 1000 mm or more, a glass plate G having a size of 1200 mm or more, or a glass plate G having a size of 1600 mm or more. Further, although the upper limit of the dimension of one side of the glass sheet G is not particularly limited, it may be, for example, 2500 mm or less.

In addition, as the glass plate G which has a large amount of deformation of the flexural deformation, for example, a glass plate G having a thickness of 1.5 mm or less or a glass plate G having a thickness of 1.1 mm or less may be mentioned. Further, the lower limit of the thickness of the glass plate is, for example, 0.2 mm or more, and the thickness of the glass plate G having a large demand is 0.4 mm or more.

Further, as the glass sheet G having a large amount of deformation of the flexural deformation, a glass sheet G having a ratio (L/t) of one side dimension (L) to a thickness (t) of 500 or more is listed, and the ratio (L/t) is A glass plate G of 600 or more, a glass plate G having a ratio (L/t) of 700 or more, or a glass plate G having a ratio (L/t) of 800 or more. Further, the upper limit of the ratio (L/t) in the glass sheet G is not particularly limited, and is, for example, 13,000 or less.

Further, in the drawings of Fig. 1 and the like, in order to easily recognize the glass sheet G, the thickness of the glass sheet G is shown in an exaggerated form.

<Method of Manufacturing Glass Articles>

Next, the method of manufacturing the glass article will be described together with the operation (operation) of the glass plate holder 11 and the operation (action) of the glass sheet movement restricting device 71.

The method for producing a glass article includes a process for holding the glass sheet G in the holder main body 21 and a treatment process for treating the glass sheet G with a chemical strengthening liquid.

The holding process of the present embodiment is carried out using the glass plate holder 11 and the glass sheet movement restricting device 71. The holding process includes the first stage of inserting the first glass sheet G1 into the slot S, and the second stage of inserting the second glass sheet into the slot S adjacent to the slot S that has received the first glass sheet G1. .

In the first stage of the holding process, the first glass sheet G1 is inserted into the slot S of the holder body 21 by the glass sheet supply device omitted in the drawing. The glass sheet supply device is configured to hold the glass sheet G from the supply source of the glass sheet G, and the glass sheet G can be inserted into the slot S.

The first restricting member 62 of the glass sheet movement restricting device 71 (glass plate holder 11) moves from the unrestricted position of the first glass sheet G1 toward the restricted position of the first glass sheet G1 after the first step. At this time, the concave portion 61a is inserted into the upper end of the first restricting member 62 of the glass sheet holder 11, and has a shape in which the width is formed to be narrower toward the inner deep portion. Therefore, when the first restricting member 62 is moved toward the restricted position of the first glass sheet G1, the upper end portion Ga of the first glass sheet G1 hardly collides with the opening end of the upper end insertion concave portion 61a. Further, in the first restricting member 62 at the restricted position, the accuracy of restricting the movement of the upper end portion Ga of the first glass sheet G1 can be improved.

Fig. 2(a) is a schematic side view showing a second stage, and Fig. 2(b) is a schematic plan view thereof. As shown in Fig. 2 (a) and Fig. 2 (b), the first restricting member 62 is in the second stage of the holding process in a state where the first glass plate G1 is restricted to the restricted position. Here, the first glass sheet G1 that has been received in the slot S is flexibly deformed, and the upper end portion Ga of the first glass sheet G1 is relatively moved to the other portion. When the upper end portion Ga of the first glass sheet G1 moves, there is a collision with the second glass sheet G2 that is inserted into the slot S after the first glass sheet G1. In this regard, in order to restrict the excessive movement of the upper end portion Ga due to the deflection deformation of the first glass sheet G1 by the first restricting member 62.

In the second stage, the second glass sheet G2 is inserted into the slot S adjacent to the slot S that has received the first glass sheet G1 by the glass sheet supply device omitted in the drawing.

In this case, the second glass sheet G2 can be inserted into and received by the first glass sheet in a state where the movement of the upper end portion Ga of the first glass sheet G1 received in the slot S is restricted by the first restricting member 62. Slot S adjacent to slot S of G1. Thereby, it is possible to easily avoid the collision of the lower end portion of the second glass sheet G2 with the first glass sheet G1.

Fig. 3 (a) is a schematic side cross-sectional view showing a state in which the second restricting member 63 is moved to the restricted position of the second glass sheet G2, and Fig. 3 (b) is a schematic plan view thereof. As shown in Fig. 3 (a) and Fig. 3 (b), after the second stage, the second restricting member 63 is moved from the unrestricted position of the second glass sheet G2 toward the restricted position of the second glass sheet G2. Further, at this time, the second restricting member 63 is positioned at a position that is also restricted to the first glass sheet G1.

When the first glass plate G1 and the second glass plate G2 are sequentially restricted by the restriction member 61, the first restriction member 62 and the second restriction member 63 can be used alternately, and the first restriction member 62 and the second restriction member 62 can be used. One of the restricting members 63 is caused to wait in an unrestricted position of the glass sheet G to be restricted next. Thereby, the time from the insertion of the glass sheet G to the slot S to the restriction by the restriction member 61 can be shortened.

The holding process includes the third stage of holding the third glass sheet in the slot S adjacent to the slot S that has received the second glass sheet G2.

Fig. 4(a) is a schematic side cross-sectional view of the third stage, and Fig. 4(b) is a schematic plan view thereof. As shown in Fig. 4 (a) and Fig. 4 (b), the second restricting member 63 is in the third stage of the holding process in a state where the position of the second glass plate G2 is restricted. In the third stage, in the same manner as the second stage, the third glass sheet G3 is inserted into the slot S by the glass sheet supply device. In the third stage, the first restricting member 62 is in a state in which the third glass plate G3 is not restricted to the unrestricted position.

In this manner, the movement of the end portion Ga of the second glass sheet G2 that has been received in the slot S is restricted by the second restricting member 63, and the third glass sheet G3 can be inserted into and received by the second glass sheet G2. Slot S adjacent to slot S. Thereby, it is possible to easily avoid the collision of the lower end portion of the third glass sheet G3 with the second glass sheet G2.

Fig. 5 (a) is a schematic side cross-sectional view showing a state in which the first restricting member 62 is moved to the restricted position of the third glass sheet G3, and Fig. 5 (b) is a schematic plan view thereof. As shown in Fig. 5 (a) and Fig. 5 (b), after the third stage, the first restricting member 62 is moved from the unrestricted position of the third glass sheet G3 to the restricted position of the third glass sheet G3, although omitted Regarding the pattern of the subsequent stage, there is still an operation such as the fourth stage of inserting the fourth glass sheet into the slot S. In this holding process, the step of holding the glass sheet G is repeated in response to the number (N) of the glass sheets G held on the holder body 21.

Fig. 6(a) is a schematic side cross-sectional view showing a state in which the third restricting member 64 is moved to the restricting position of the glass sheet G, and Fig. 6(b) is a schematic plan view thereof. As shown in FIGS. 6(a) and 6(b), when the last glass sheet GN is inserted into the slot S, the movement of the upper end Ga of the entire glass sheet G that has been received in the slot S is by glass. The third restriction member 64 of the plate holder 11 is restricted. Thereby, the maintenance process is ended. Further, the first restricting member 62 and the second restricting member 63 of the glass sheet movement restricting device 71 are moved to a position at which the holder body 21 can be carried out.

Fig. 7(a) is a schematic side cross-sectional view showing a state in which the glass sheet G to the processing process is provided, and Fig. 7(b) is a schematic plan view thereof. As shown in Fig. 7 (a) and Fig. 7 (b), the holder body 21 in a state in which the movement of the upper end portion Ga of the glass sheet G is restricted by the third restriction member 64 is provided in the processing process in this state. . In the treatment process, the holder body 21 is immersed in the chemical strengthening liquid. At this time, the chemical strengthening liquid comes into contact with the glass sheet G and the chemically strengthened glass sheet G while flowing into the inside of the holder body 21.

The glass plate G is treated with a chemical strengthening solution to cause ion exchange, and ions contained in the glass plate G are exchanged with ions contained in the chemical strengthening liquid, and ions having a large ionic radius are introduced into the glass plate G. Thereby, a compressive stress layer was formed in the chemically strengthened glass plate which is the obtained glass article.

The chemical strengthening liquid is not particularly limited, and examples thereof include a potassium nitrate solution, a sodium nitrate solution, and a potassium carbonate solution. The temperature of the chemical strengthening liquid is, for example, preferably in the range of 350 to 550 ° C in the case of a potassium nitrate solution. The immersion time of the glass plate G in the chemical strengthening liquid is, for example, in the range of 1 to 8 hours.

Here, in the process of carrying out the conveyance or treatment from the holding process to the processing process, when the movement of the end portion Ga of the glass sheet G held by the holder body 21 is not restricted, the deflection of the glass sheet G is obtained. A warped chemically strengthened glass plate. In this regard, in the present embodiment, the entire glass plate G held by the holder main body 21 is in a restricted state restricted by the use of the third restriction member 64. Thereby, when the holder body 21 holding the glass sheet G is conveyed or the glass sheet G which has been held on the holder body 21 by the chemical strengthening liquid is processed, the scratch of the entire glass sheet G can be suppressed. Curved deformation.

The chemically strengthened glass plate which has been subjected to the treatment process of the chemical strengthening liquid is washed by a washing process. At this time, the tempering tempered glass sheet can also be washed while being held by the holder body 21. Further, the chemically strengthened glass plate which has been subjected to the washing process can also be subjected to a drying process. At this time, the chemically strengthened glass plate may be dried while being held by the holder body 21.

According to the embodiment described in detail above, the effects described below can be exerted.

(1) The restricting member 61 of the glass plate holder 11 is configured to be capable of inserting the slot S by restricting the position of the glass plate G received in the slot S to the movement of the slot S and the glass plate G Move between unrestricted positions of unloading. According to this configuration, since the movement of the glass sheet G can be restricted by the restriction member 61 (the first restriction member 62, the second restriction member 63, or the third restriction member 64) that moves at the restriction position, it is possible to suppress the acceptance of the glass sheet G. Flexural deformation of the glass sheet G in the slot S. Thereby, the glass plate G can be stably held by the holder body 21.

(2) The holder body 21 of the glass plate holder 11 is provided with a plurality of slots S that can receive a plurality of glass sheets G. The restriction member 61 of the glass plate holder 11 includes the first restriction member 62 and the second restriction member 63. In this case, when the movement of the glass sheet G is sequentially restricted by the restriction member 61, the first restriction member 62 and the second restriction member 63 can be used by using the first restriction member 62 and the second restriction member 63 in an interactive manner. Either stand by in the unrestricted position of the glass sheet G to be restricted for the next sheet. Thereby, the time until the glass sheet G is inserted into the slot S and the restriction by the regulating member 61 can be shortened. Thereby, the efficiency of the holding process for holding the glass sheet G on the holder body 21 can be improved.

(3) The restriction member 61 of the glass plate holder 11 further includes the third restriction member 64. The third restricting member 64 is movable toward a restricted position that restricts all of the glass sheets G that have been received in the slot S. In this case, when the holder main body 21 holding the glass sheet G is conveyed, or in the processing process of treating the glass sheet G held by the holder body 21 with the chemical strengthening liquid, the entire glass sheet G can be suppressed. Flexural deformation. Thereby, since the deflection of the chemically strengthened glass sheet as the obtained glass article can be suppressed, it is advantageous from the viewpoint of improving the yield in the chemically strengthened glass sheet or improving the quality.

(4) The holder body 21 of the glass plate holder 11 includes a main body frame 31, a lower end support portion 41, and a side end holding portion 51. The side end holding portion 51 includes or is formed with a slot S. The first restricting member 62, the second restricting member 63, and the third restricting member 64 of the glass plate holder 11 have an upper end insertion recess 61a that receives the upper end portion Ga of the glass sheet G. The upper end insertion recess 61a has a shape in which the width is formed narrower as it goes deeper inside.

According to this configuration, when the restricting member 61 is moved to the restricting position, the upper end portion Ga of the glass sheet G hardly collides with the open end of the upper end insertion recess 61a, and the restricting member 61 at the restricting position can lift the upper end portion of the restricting glass plate G. The accuracy of Ga's movement. Even in the second restriction member 63 and the third restriction member 64, the same effects can be exhibited.

(5) The glass plate holder 11 of the present embodiment is particularly advantageous for suppressing the deflection of the glass sheet G having a ratio (L/t) of the side dimension (L) to the thickness (t) of 500 or more. Further, the glass sheet holder 11 of the present embodiment is particularly advantageous for suppressing deflection deformation of a glass sheet having a size of 1000 mm or more and a thickness of 1.5 mm or less. Accordingly, it is advantageous from the viewpoint of improving the yield or improving the quality in the chemically strengthened glass sheet obtained by the large-sized or thin-plate glass sheet G.

(6) The glass sheet movement restricting device 71 includes, for example, a first restricting member 62 and a first driving portion 81. According to this configuration, the effects described in the above column (1) can be obtained. Further, since the operation of moving the first restricting member 62 from the unrestricted position to the restricted position can be automated by the first driving unit 81, it is advantageous to keep the process labor-saving.

(7) The glass sheet movement restricting device 71 includes the first restricting member 62 and the first driving unit 81, and the second restricting member 63 and the second driving unit 91. In this case, the effects described in the above item (2) can be exerted.

(8) In the method of manufacturing a glass article, the restriction member 61 is used. According to this method, the effects described in the above column (1) can be exerted. Therefore, it is advantageous from the viewpoint of improving the yield of the chemically strengthened glass sheet or improving the quality.

(9) The holding process of the method for producing a glass article includes: inserting the first glass sheet G1 into the first stage of the slot S, and inserting the second glass sheet G2 into the slot S of the first glass sheet G1. The second stage of the adjacent slot S. In the second step, the first restricting member 62 of the glass sheet movement restricting device 71 (glass plate holder 11) is placed in a position restricted to the first glass sheet G1.

According to this method, the movement of the upper end portion Ga of the first glass sheet G1 that has been received in the slot S can be inserted into the second glass sheet G2 while being restrained by the first restricting member 62. The slot adjacent to the slot S of the first glass plate G1. Thereby, it is easy to avoid that the lower end part of the 2nd glass plate G2 collides with the 1st glass plate G1. Thereby, the glass sheet G can be stably held by the holder body 21.

(10) In the method of manufacturing a glass article, the first restricting member 62 and the second restricting member 63 are used as the restricting member 61. The holding process of the method for producing a glass article includes the third stage of inserting the third glass sheet G3 into the slot S adjacent to the slot S that has received the second glass sheet G2. This third stage is performed in a state where the second restricting member 63 is positioned at a restricted position restricting the second glass sheet G2. In this case, the effects described in the above column (2) can be exerted.

(11) In the holding process of the method for manufacturing a glass article, the restriction state is such that the movement of the upper end portion Ga of all the glass sheets G received in the slot S is restricted by the third restricting member 64. The glass sheet G of this limited state is subjected to a treatment process of a method for producing a glass article. In this case, the effects described in the above item (3) can be exerted.

(change example)

The above embodiment can also be modified as follows.

・The third restriction member 64 of the glass plate holder 11 can also be omitted. In this case, for example, the first restricting member 62 or the second restricting member 63 may be used to restrict the movement of the upper end portion Ga of all the glass sheets G that have been received in the slot S. Specifically, for example, the attaching and detaching mechanism is provided, whereby the first restricting member 62 can be attached to and detached from the first driving portion 81 of the glass sheet movement restricting device 71. On the other hand, when the first restricting member 62 is positioned at a position restricting the total number of glass sheets G that have been received in the slot S, the first restricting member 62 is disengaged by the first driving unit 81. However, in this case, the first restricting member 62 is formed to be transported together with the holder main body 21, and when the first restricting member 62 is moved, a program for attaching and detaching the first driving unit 81 is required. Also, since the first restricting member 62 or the second restricting member 63 is rather cumbersome to use, it is preferable that the glass plate holder 11 is provided with the third restricting member 64.

The restriction member 61 of the glass plate holder 11 may be constituted only by the first restriction member 62. In this case, when the glass sheet G is placed on the holder body 21 each time, the first restricting member 62 is moved, and the plurality of sheets held by the holder body 21 can be restricted by the first restricting member 62. Glass plate G.

The restriction member 61 of the glass plate holder 11 may be configured only by the third restriction member 64. Even in this case, since the flexural deformation of the glass sheet G that has been received in the slot S is suppressed, the glass sheet G can be stabilized and held by the holder body 21.

The first restricting member 62 and the second restricting member 63 of the glass plate holder 11 are configured to limit the total number of glass sheets G that have been received in the slot S. Accordingly, at least one of the first restricting member 62 and the second restricting member 63 is not limited to restrict the movement of all the glass sheets G, and the structure thereof may be changed to restrict the movement of one or more glass sheets G. . In this case, in the stage of sequentially inserting the glass sheet G into the slot S, the movement of the glass sheet G into which the slot S adjacent to the slot S to be inserted into the glass sheet G is inserted is restricted. Thereby, the insertion and holding of the glass sheet G can be performed smoothly.

However, from the viewpoint of more stably holding the glass sheet G on the holder main body 21, the glass sheet G inserted first into the slot S is set as the first sheet, and the last inserted glass sheet G is set as the first In the case of the N piece, the first restricting member 62 and the second restricting member 63 are preferably configured as follows. In other words, it is preferable that one of the first restricting member 62 and the second restricting member 63 is configured such that the glass sheet G from the first sheet to the N-1th sheet is restricted, and the other is configured such that The glass plate G from one sheet to the N-2 sheet is limited. Further, it is preferable that one of the first restricting member 62 and the second restricting member 63 is configured to restrict the glass sheet G from the first sheet to the Nth sheet, and the other is configured such that the first sheet is to be The glass plate G up to the N-1th sheet is limited.

・The number of the restricting members 61 of the glass plate holder 11 can also be changed as appropriate. For example, the glass plate holder 11 may be changed to have a structure including a fourth restricting member that is independent of any of the first restricting member 62, the second restricting member 63, and the third restricting member 64. And can be moved. The fourth restricting member is used to restrict the movement of the upper end portion Ga of the glass sheet G when the glass sheet G is sequentially inserted into the slot S, for example, similarly to the first restricting member 62 and the second restricting member 63. Further, the fourth restricting member may be the same as the third restricting member, and may be used to restrict the movement of the upper end Ga of the glass plate G that has been received by the slot S. Even in the glass sheet movement restricting device 71, the number of the restricting members 61 can be appropriately changed.

In the glass sheet movement restricting device 71, either one of the first driving unit 81 and the second driving unit 91 may be omitted. Further, the glass sheet movement restricting device 71 may be changed to have a structure in which the third driving unit that moves the third restricting member 64 is further provided. The third restriction member 64 is detachably provided in the third drive unit.

As shown in FIGS. 8( a ) and 8 ( b ), the restricting member 61 of the glass plate holder 11 may be changed to a crawler type restricting member 65 having a crawler structure. This type of crawler type restricting member 65 is provided with a belt body 65a and a roller 65b around which the belt body 65a is wound. The belt body 65a has an upper end insertion recess 61a that receives the upper end portion Ga of the glass sheet G. The crawler type restriction member 65 shown in Figs. 8(a) and 8(b) is positioned at a position restricting the first glass sheet G1, and in this state, the second glass sheet G2 is inserted into the slot S. . As shown in FIG. 9(a) and FIG. 9(b), after the second glass plate G2 is received by the slot S, the crawler type restricting member 65 is actuated, whereby the crawler type restricting member 65 is moved to the second glass. The limit position of the plate G2 limit. In the crawler type restricting member 65, it is easy to sequentially restrict the movement of the upper end portion Ga of the glass sheet G that has been received in the slot S. Further, the crawler type restricting member 65 may be configured to be manually operated or may be configured to be driven by a driving portion.

The shape of the upper end insertion recess 61a of the restriction member 61 in the glass plate holder 11 is formed such that the width is formed to be narrower toward the inner deep portion. However, the shape is not limited thereto, and for example, The shape is wider as the width is deeper toward the inner portion.

The restriction member 61 of the glass plate holder 11 has the upper end insertion recess 61a, but may be changed to a restriction member in which the upper end insertion recess 61a is omitted. For example, even if the restricting member is changed to have a flat surface that presses the upper end portion Ga of the glass sheet G, the movement of the upper end portion Ga of the glass sheet G can be restricted by the pressing operation. However, the restricting member having the upper end insertion recess 61a is advantageous in that excessive load is applied to the upper end portion Ga of the glass sheet G, and the movement of the upper end portion Ga can be suppressed, and the upper end is inserted into the recess 61a to have the inner side. It is more advantageous to form a narrower width in the deep portion.

・The shape, size, and the like of the restriction member 61 such as the glass plate holder 11 can be appropriately changed. For example, the first restricting member 62 may be changed so as to limit a plurality of portions in the upper end portion Ga of one piece of the glass sheet G.

In the glass plate holder 11 or the like, a restriction member of a different mechanism or shape may be combined and implemented. For example, the first restriction member 62 and the crawler type restriction member 65 may be combined.

The first restricting member 62 and the second restricting member 63 of the glass plate holder 11 are configured to move by the first driving unit 81 and the second driving unit 91, respectively, but the first restricting member 62 may be manually operated. And the movement of the second restriction member 63. The holding process for the method of manufacturing the glass article can also be carried out manually.

The first driving unit 81 of the glass sheet movement restricting device 71 is not limited to the first vertical driving unit 82 and the first horizontal driving unit 83, and may be changed to another one that can move the first restricting member 62 to the designated position. mechanism. The second drive unit 91 for the glass sheet movement restricting device 71 may be changed to another mechanism.

The holder body 21 is disposed such that the glass sheet G can be inserted in the vertical direction. However, the holder body 21 may be disposed to be inclined to the horizontal plane so that the glass sheet G is inclined in the vertical direction. Insert in the direction.

The holder body 21 may be changed to a horizontal shape so that the glass sheet G can be inserted into the slot S in a slightly horizontal direction. In this case, the lower end support portion 41 may be omitted. In the horizontal type of the holder body, for example, the glass sheet G that has been inserted into the slot S protrudes downward to cause flexural deformation. With regard to the occurrence of the deflection, the movement of the end portion of the glass sheet G can be restricted by the restriction member 61, so that the glass sheet G can be stably held by the holder body 21. In the glass sheet G, the portion that restricts the movement using the regulating member 61 is not limited to the upper end portion Ga.

In the holder body 21, the shape and the number of the lower end support portion 41 or the side end holding portion 51 and the fixed position with respect to the main body frame 31 can be appropriately changed.

The use of the holder main body 21 is to hold the glass sheet G when the glass sheet G is treated with a chemical strengthening liquid, and it is also possible to use, for example, a chemical strengthening liquid for the glass sheet G to be used as a chemical strengthening liquid. For the treatment of the glass sheet G, for example, heat treatment for heating the glass sheet G held by the holder main body 21, washing of the glass sheet G held by the holder main body 21, and drying are maintained. The drying process of the glass sheet G of the holder body 21 is maintained. Further, the holder body 21 can also be used in a modification process in which the glass sheet G that has been held in the holder body 21 by liquid modification is used. The holder body 21 can be used in a separate process, and can also be used in a plurality of processes.

The composition and use of the glass sheet G are not particularly limited. The glass plate G may be, for example, an alkali-free glass. Examples of the use of the glass sheet G include display applications, touch panel applications, photoelectric conversion panel applications, electronic device applications, window glass applications, building materials applications, and vehicle applications.

The combination of the first restriction member 62 and the first drive unit 81 and the combination of the second restriction member 63 and the second drive unit 91 in the embodiment of FIG. 1 are examples of a movable arm. In the example of FIGS. 8 and 9, the elongated crawler-type restricting member 65 is another example of a movable arm. The control unit C may include: a digital memory or a digital storage as a recording medium, and store a code for moving the movable arm; the processor generates a control signal according to the code; and the I/O port is used to control the signal. Supply a movable arm. The control unit C and the movable arm can be connected by wired or wireless connection. The movable arm advances the corresponding restricting member in the horizontal direction D2 by a moving distance of an integral multiple of the predetermined pitch in accordance with the control signal. In the example with two movable arms, each of the movable arms can be interactively advanced by a movement distance that is twice the aforementioned specified pitch. In the example with a movable arm, the movable arm advances at the same travel distance as the specified pitch. If necessary, a control signal for instructing the restriction member to move in the up and down direction D1 may be included.

The disclosure includes the following examples.

(a) A glass plate holder, wherein the restricting member has a concave portion that receives an end portion of the glass plate or a flat surface that presses an end portion of the glass plate.

(b) A glass plate holding device comprising: a glass plate supply device for supplying a glass plate; and the glass plate movement restricting device.

The invention is not limited to the examples shown. For example, the features of the present invention should not be construed as being essential to the invention, but the features of the present invention are less than the specific features of the specific embodiments disclosed. The invention is expressed by the scope of the patent application, and the invention is included in the full scope of the invention.

G‧‧‧glass plate
Ga‧‧‧Upper
G1‧‧‧1st glass plate
G2‧‧‧2nd glass plate
G3‧‧‧3rd glass plate
S‧‧ slots
11‧‧‧ glass plate holder
21‧‧‧ Keeping the body
31‧‧‧ body framework
41‧‧‧Bottom support
51‧‧‧ Side Holder
61‧‧‧Restricted components
61a‧‧‧The upper end is inserted into the recess (recess)
62‧‧‧1st restriction member
63‧‧‧2nd restriction member
64‧‧‧3rd restriction member
65‧‧‧ Track type restraining members
65a‧‧‧Band
65b‧‧‧Roller
71‧‧‧ Glass plate movement limiting device
81‧‧‧1st drive department
91‧‧‧2nd drive department

Fig. 1 is a schematic view showing a glass plate holder and a glass sheet movement restricting device in the embodiment. Fig. 2(a) is a schematic side cross-sectional view of the second stage, and Fig. 2(b) is a schematic plan view. Fig. 3 (a) is a schematic side cross-sectional view showing a state in which the second restricting member is moved to the restriction position of the second glass sheet, and Fig. 3 (b) is a schematic plan view. 4(a) is a schematic side cross-sectional view of the third stage, and FIG. 4(b) is a schematic plan view. Fig. 5 (a) is a schematic side cross-sectional view showing a state in which the first restricting member is moved to the restriction position of the third glass sheet, and Fig. 5 (b) is a schematic plan view. Fig. 6(a) is a schematic side cross-sectional view showing a state in which the third restricting member is moved to the restricted position of the glass sheet, and Fig. 6(b) is a schematic plan view. Fig. 7(a) is a schematic side cross-sectional view showing a state in which a glass sheet to a process is provided, and Fig. 7(b) is a schematic plan view. Fig. 8(a) is a schematic side cross-sectional view showing a second step of the regulating member using the modified example, and Fig. 8(b) is a schematic plan view. Fig. 9 (a) is a schematic side cross-sectional view showing a state in which the regulating member of the modified example is moved to the restriction position of the second glass sheet, and Fig. 9 (b) is a schematic plan view.

G‧‧‧glass plate

Ga‧‧‧Upper

G1‧‧‧1st glass plate

S‧‧ slots

11‧‧‧ glass plate holder

21‧‧‧ Keeping the body

31‧‧‧ body framework

41‧‧‧Bottom support

51‧‧‧ Side Holder

61‧‧‧Restricted components

61a‧‧‧The upper end is inserted into the recess (recess)

62‧‧‧1st restriction member

63‧‧‧2nd restriction member

64‧‧‧3rd restriction member

71‧‧‧ Glass plate movement limiting device

81‧‧‧1st drive department

91‧‧‧2nd drive department

Claims (14)

A glass plate holder, comprising: a holder body for holding a glass plate for processing a glass plate; and at least one restricting member for restricting movement of the glass plate relative to the holder body; the holder body Having a plurality of slots for receiving a plurality of glass sheets, wherein the at least one restricting member is configured to restrict the movement of the glass sheet that has been received in the slot and the glass plate to perform the slot The at least one restriction member is moved between the unrestricted positions of the insertion and the detachment, and the first and second restriction members are movable independently of each other. The glass plate holder according to claim 1, wherein the first restriction member and the second restriction member are configured to be movable to a plurality of restriction positions corresponding to the number of the plurality of slots, and to limit the plurality of sheets In the movement of the glass sheet, the at least one restricting member further includes a third restricting member that is movable independently of one of the first restricting member and the second restricting member, and the third restricting member is movable to restrict the receiving to The limit position of the movement of all the glass plates of the plurality of slots described above. The glass plate holder according to claim 1 or 2, wherein the holder body includes: a body frame; a lower end support portion fixed to the body frame and supporting a lower end portion of the glass plate; and the frame body fixed to the body frame and holding the glass a side end holding portion at both end portions of the plate; the side end holding portion includes or is formed with the aforementioned slot; the at least one restricting member has a concave portion that receives an upper end portion of the glass plate, and the concave portion has a width toward the inner deep portion Narrow shape. The glass plate holder according to claim 1 or 2, wherein the at least one restriction member has a crawler structure including a belt body and a roller. The glass plate holder according to claim 1 or 2, wherein the holder body has a shape capable of maintaining a glass plate having a ratio (L/t) of one side dimension (L) to a thickness (t) of 500 or more. The glass plate holder according to claim 1 or 2, wherein the shape of the holder body is such that a glass plate having a side size of 1000 mm or more and a thickness of 1.5 mm or less can be held. A glass sheet movement restricting device is used together with a holder body having a plurality of slots capable of receiving a plurality of glass sheets for processing a glass sheet, and is characterized in that: at least one restricting member is configured to be restrained a restricting position of the movement of the glass sheet in the slot and an unrestricted position in which the glass plate can be inserted or detached from the slot; at least one driving portion is mechanically coupled to the at least one limiting member, The at least one restriction member is moved to the restriction position and the non-restricted position, and the at least one restriction member includes first and second restriction members that are movable independently of each other, and the at least one drive portion includes: moving the first restriction member a first drive unit and a second drive unit that moves the second restriction member. A method for manufacturing a glass article, comprising: maintaining a process of holding at least one glass plate in a holder body; and processing a process to maintain at least one glass plate of the holder body; wherein the holder body is capable of receiving a plurality of slots of the plurality of glass sheets, wherein at least one of the restricting members is used in the holding process, the restricting member being configured to limit at least one of the selection slots that have been selected by the plurality of slots a restricted position of movement of a piece of glass plate and an unrestricted position of the aforementioned one piece of glass plate for inserting and unloading the selected slot; The holding process includes: in the first stage, the first glass plate is inserted into the first slot; and in the second stage, the second glass plate is inserted into the first slot adjacent to the first slot in which the first glass plate is received The second slot is implemented in a state in which the at least one of the restricting members is positioned at a restricted position with respect to the first glass sheet. The method for producing a glass article according to claim 8, wherein the at least one restriction member includes first and second restriction members that are independent of each other and movable, and the holding process includes holding the third glass plate in the third slot. In the third stage, the third slot is adjacent to the second slot that receives the second glass sheet, and the second step is in a state where the first restriction member is positioned at the restricted position of the first glass sheet. In the third stage, the second restricting member is placed in a state in which the second glass plate is in a restricted position. The method for producing a glass article according to claim 8 or 9, wherein in the holding process, all of the glass sheets held on the holder body are in a restricted state restricted by the at least one restriction member, and the restriction state is The glass sheet is subjected to the aforementioned treatment process. The method for producing a glass article according to claim 8 or 9, wherein the processing process is performed by: immersing the glass plate held in the holder body in a chemical strengthening liquid, and heat treatment is maintained on the holder body The process of cleaning the glass sheet, cleaning the process of maintaining the glass sheet of the holder body, and at least one process selected for drying the glass sheet that has been held in the holder body. A glass plate holding system comprising: a holder body having a plurality of slots formed at a predetermined pitch for receiving a plurality of glass sheets for processing a glass sheet; The at least one movable arm includes a plurality of contact faces formed at the same pitch as the predetermined pitch of the slot for contacting the plurality of glass plates at a position different from the plurality of slots; the control portion, Generating a control signal for advancing the moving distance of the at least one movable arm at an integral multiple of the specified pitch, wherein the at least one movable arm is sequentially moved to a plurality of restricted positions corresponding to the plurality of glass sheets, respectively. The at least one movable arm includes first and second movable arms, and the control unit is configured to allow the first and second movable arms to advance independently of each other. The system according to claim 12, wherein the at least one movable arm includes first and second movable arms, and the control unit is configured to cause the first and second movable arms to alternately be integers of the specified pitch Double the moving distance forward. A glass plate retaining system comprising: a holder body having a plurality of slots formed at a specified pitch for receiving a plurality of glass sheets for processing a glass sheet; at least one movable arm including the slot The plurality of contact faces formed by the same pitch at the same pitch for contacting the plurality of glass plates at positions different from the plurality of slots; the control portion generating the at least one movable arm by the foregoing designation a control signal for moving the distance of an integral multiple of the pitch, wherein the at least one movable arm is sequentially moved to a plurality of limit positions respectively corresponding to the plurality of glass sheets, and the at least one movable arm includes a crawler type restriction member, The crawler type restriction member includes a belt body that forms a plurality of contact faces, and the control portion is configured to advance the crawler belt type restriction member at the predetermined pitch.