Cold Vent Device

Abstract

To provide a cold vent device with which a cold vent construction method can be used in locations other than construction sites.SOLUTION: A cold vent device 1 according to the present invention includes: a device main body 5 to be placed on one side of a cold vent glass unit 2 consisting of a rectangular glass plate 3 and a sash 4 covering the periphery of the glass plate 3; a force applying device 8 attached to the device main body 5 for applying force to a vent corner part 2a that is one corner of the cold vent glass unit 2; a transmission member 9 extending from the force applying device 8 toward the vent corner part 2a; a tip part 10 located at a tip of the transmission member 9 and abutting or engaging with the vent corner part 2a; and a fixing unit 6 for fixing the device body 5 and the cold vent glass unit 2 to each other in order to keep a distance constant except for the vent corner part 2a.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cold vent device for bending glass without applying heat and installing it on the exterior wall of a building or the like. [Background technology]

[0002] A cold vent construction method is known in which glass sheets are attached to a building frame at a construction site while being twisted (bent) little by little together with the sash (frame) or just the glass sheets (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-155975 Summary of the Invention [Problem to be solved by the invention]

[0004] This cold venting method is performed by lifting the glass sheet together with the sash and retracting or pushing out the apex while it is aligned with the building wall, as described in Patent Document 1. However, Patent Document 1 does not describe any specific equipment for performing the cold venting method. When performing the cold venting method, the sash must be retracted or pushed out, which is time-consuming at the construction site. It is also desirable to be able to bend the glass sheet in advance even when it is not lifted along the building wall, such as at a location other than the construction site.

[0005] The present invention has been made in consideration of the above-mentioned conventional techniques, and has as its object to provide a cold vent device that allows the cold venting method to be carried out at locations other than the construction site. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the present invention provides a cold vent device comprising: an apparatus main body to be placed on one side of a cold vent glass unit consisting of a rectangular glass plate and a sash covering the periphery of the glass plate; a force application device attached to the apparatus main body for applying force to a bent corner which is one corner of the cold vent glass unit; a transmission member extending from the force application device toward the bent corner; a tip portion located at the tip of the transmission member for abutting or engaging with the bent corner; and a fixing unit for fixing the apparatus main body and the cold vent glass unit to each other to maintain a constant distance between them in a portion excluding the bent corner.

[0007] Preferably, the device body is formed of a frame that follows the outer edge of the cold bent glass unit.

[0008] Preferably, the transmission member extends along a side surface of the cold bent glass unit.

[0009] Preferably, the device body has a ring-shaped connecting portion to be connected to a sling. [Effects of the Invention]

[0010] In this invention, a force applying device is provided to apply force to the bent corners. Furthermore, since the distance between the device body and the cold bent glass unit is constant in areas other than the bent corners, the force applying device can be used to bend only the bent corners. This operation can be performed anywhere, even outside the construction site or along the building wall, and can be performed at any location. Note that bending the bent corners means moving the bent corners in the longitudinal direction of the transmission member.

[0011] Furthermore, since the device body is formed of a frame that follows the outer edge of the cold bent glass unit, the cold bent glass unit can be stored while being held in the device body in a bent state. Since the device body follows the outer edge of the cold bent glass unit during storage, the cold bent glass unit can be efficiently protected.

[0012] Furthermore, since the transmission member extends along the side of the cold bent glass unit, even after multiple cold bent glass units have been arranged on the building wall, the transmission member can be inserted through the gap between adjacent cold bent glass units, allowing fine adjustment of the bending of the cold bent glass unit.

[0013] Furthermore, by providing a connecting section on the device body, it can be connected to a sling used when lifting it along the wall of a building, improving workability on site. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a schematic diagram showing a cold vent device and a cold vent glass unit according to the present invention. [Figure 2] 1 is a schematic view showing a state in which a cold vent device according to the present invention is fixed to a cold vent glass unit. [Figure 3] 1 is a schematic diagram showing a state in which a cold venting method is performed on a cold vent glass unit by the cold vent device according to the present invention. [Figure 4] 1 is a schematic view showing a state in which the cold vent device according to the present invention is lifted together with the cold vent glass unit. FIG. [Figure 5] 1 is a schematic diagram showing another cold vent device and cold vent glass unit according to the present invention. [Figure 6] FIG. 10 is a schematic view showing a state in which another cold vent device according to the present invention is fixed to a cold vent glass unit. [Figure 7]10 is a schematic diagram showing a state in which a cold venting method is performed on a cold vent glass unit by another cold vent device according to the present invention. FIG. [Figure 8] 1 is a schematic view showing a state in which the cold vent device according to the present invention is lifted together with the cold vent glass unit. FIG. [Figure 9] FIG. 2 is a schematic diagram showing an example of a tip portion. [Figure 10] FIG. 10 is an exploded schematic view of the tip portion of FIG. 9. [Figure 11] FIG. 10 is a schematic diagram showing another example of the tip portion. [Figure 12] 12 is a schematic view for explaining the engagement operation of the tip end portion of FIG. 11. FIG. [Figure 13] FIG. 10 is a schematic diagram showing yet another example of the tip portion. [Figure 14] 14 is a schematic diagram for explaining the engagement operation of the tip end portion of FIG. 13. FIG. [Figure 15] FIG. 10 is a schematic view showing a state in which still another cold vent device according to the present invention is fixed to a cold vent glass unit. [Figure 16] FIG. 16 is a schematic side view of FIG. [Figure 17] 15 is a schematic side view when viewed from a different direction from that of FIG. 16. FIG. [Figure 18] FIG. 17 is a schematic view showing a state in which the vehicle is jacked up from the state shown in FIG. 16. [Figure 19] FIG. 18 is a schematic view showing a state in which the vehicle is jacked up from the state shown in FIG. 17. DETAILED DESCRIPTION OF THE INVENTION

[0015] As shown in FIG. 1, the cold vent device 1 according to the present invention is used to perform the cold venting method on a cold vent glass unit 2. The cold vent glass unit 2 is formed of a rectangular glass plate 3 and a sash 4 that covers the periphery of the glass plate 3. When performing the cold venting method, a force is applied in one direction to a bent corner 2a, which is one corner of the cold vent glass unit 2, and the bent corner 2a is moved in the direction of the applied force. This movement of the bent corner 2a may also be referred to as bending the cold vent glass unit 2. Specifically, the glass plate 3 is bent by the applied force, and the sash 4 is bent accordingly (or the joints (corners) of adjacent sashes rotate to follow this). The glass plate 3 may be any glass plate 3 that can be used in the cold venting method, including single-pane glass, laminated glass, and double-glazed glass. The sash 4 is made of metal (e.g., aluminum). In practice, an intermediate material (not shown) such as rubber, sponge, or sealant is disposed between the glass plate 3 and the sash 4 to ensure watertightness.

[0016] The cold vent device 1 includes a device main body 5, which is disposed on one side of the cold vent glass unit 2. The device main body 5 has a fixing unit 6 for fixing the device main body 5 to the cold vent glass unit 2. Specifically, the fixing unit 6 is, for example, a plate having a through hole 6a extending from the device main body 5 toward the cold vent glass unit 2. A through hole 7 is also formed in the cold vent glass unit 2 at a position corresponding to the through hole 6a. As shown in FIG. 2 , the device main body 5 is fixed to the cold vent glass unit 2 via the fixing unit 6 by inserting a bolt 6b through the through holes 6a and 7. This maintains a constant distance between the device main body 5 and the cold vent glass unit 2. The fixing unit 6 is formed in a portion excluding the vent corner 2a. Here, the vent corner 2a refers to one corner of the cold vent glass unit 2 as described above, but also includes a portion of the edge including the corner that is bent by the application of force. Therefore, as shown in the example in the figure, the fixing unit 6 may be formed in a position along the side including the bent corner 2a, or in a position that is not affected by bending due to applied force (a position away from the bent corner 2a and near the adjacent corner). In other words, the bent corner 2a includes not only the corner of the cold bent glass unit 2, but also the front, back, and side surfaces of the cold bent glass unit 2 that are affected by bending due to the cold bent construction method.

[0017] A force application device 8 is attached to the device body 5. The force application device 8 may be detachable from the device body 5 or may be fixed. This force application device 8 is for applying force to the bent corner portion 2a in at least one direction. 2A transmission member 9 extends toward the bent corner 2a. A tip 10 is disposed at the tip of the transmission member 9 and abuts or engages with the bent corner 2a. In the example of FIGS. 1 to 4, the tip 10 is a disc-shaped pad that abuts against the bent corner 2a. As shown in FIG. 2, when the device main body 5 is fixed to the cold bent glass unit 2, the tip 10 abuts against the bent corner 2a (more specifically, the bent corner 2a on the surface of the sash 4 facing the device main body 5). The force application device 8 is an actuator, and when the force application device 8 is activated, the transmission member 9 is moved toward the cold bent glass unit 2, and the tip 10 applies force to the bent corner 2a in the force application direction. As a result, the cold bent glass unit 2 is bent in the force application direction, as shown in FIG. 3.

[0018] As described above, the device body 5 is equipped with a force application device 8 that applies force to the bent corner 2a. Furthermore, because the distance between the device body 5 and the cold bent glass unit 2 is constant in areas other than the bent corner 2a, the force application device 8 can be used to bend only the bent corner 2a. This operation can be performed anywhere, even outside the construction site or along the building wall. For example, the cold bent glass unit 2 can be bent horizontally, or it can be bent by remotely controlling an actuator while the cold bent glass unit 2 is suspended along the building wall and aligned vertically. While the example in Figures 1 to 4 shows only one bent corner 2a, it is also possible to simultaneously bend both the diagonal corner and the bent corner 2a.

[0019] Here, the device body 5 is formed as a frame that follows the outer edge of the cold bent glass unit 2. That is, the device body 5 is also formed in a rectangular shape, like the sash 4. The frame allows the device body 5 to be placed face down. This allows the cold bent glass unit 2 in a bent state to be stored while being held in the device body 5. During storage, since the device body 5 follows the outer edge of the cold bent glass unit 2, the device body 5 acts as a protective material and can efficiently protect the cold bent glass unit 2.

[0020] The cold bent glass unit 2 thus bent is lifted by a sling 12 via a connecting part 11, as shown in Figure 4, and transported to its position as the building wall. Therefore, the device main body 5 is provided with a ring-shaped connecting part 11 to be connected to this sling 12. By providing the connecting part 11 on the device main body 5 in this way, it can be connected to the sling 12 used when lifting it along the building wall, improving workability on site. Note that if a clamp is attached to the tip of the sling 12, this connecting part 11 is not necessary; however, it is convenient to have a connecting part already on the device main body 5 when attaching a hook 13 or shackle to the tip of the sling 12 and hanging it, as shown in Figure 4.

[0021] Another example of the cold vent device 1 is shown in FIGS. 5 to 8. In this example, the fixing unit 6 differs from the example described above. The fixing unit 6 fixes the device body 5 to the cold vent glass unit 2 and maintains a constant distance between the device body 5 and the cold vent glass unit 2. To this end, a spacer 6c may be provided as part of the fixing unit 6. The spacer 6c is shaped to fit the frame of the sash 4 and is formed in a shape that excludes the vent corner 2a. In the example shown in the figures, the spacer 6c is formed in an L-shape that excludes the side including the vent corner 2a. By disposing such a spacer 6c between the device body 5 and the cold vent glass unit 2, the fixing unit 6 fixes the device body 5 to the cold vent glass unit 2 while maintaining a constant distance from it. Specifically, the device body 5 has an attachment piece 6d, which is fixed to the spacer 6c. The spacer 6c also has an attachment piece 6e, which is fixed to the cold vent glass unit 2. By using such an L-shaped spacer 6c, a gap is formed between the bent corner portion 2a and the device main body 5 by the amount of the spacer 6c interposed therebetween, as shown in FIG.

[0022] In this example, the transmission member 9 extends along the side surface of the cold bent glass unit 2. The tip portion 10 is formed in a shape that clamps the cold bent glass unit 2 (see FIG. 9). Specifically, the tip portion 10 is formed by a pressing piece 10a that protrudes from the transmission member 9 and a pressing member 10b that has a generally L-shaped cross section. As shown in FIG. 10, the pressing piece 10a is brought into contact with one surface (the surface on the device body 5 side) of the cold bent glass unit 2, the pressing member 10b is disposed on the tip side of the transmission member 9, and the pressing member 10b is fixed to the transmission member 9 with a bolt 10c. This causes the tip portion 10 to engage with the bent corner portion 2a.

[0023] At this time, as shown in Figure 6, the transmission member 9 extends along the side surface of the sash 4, and in this state, the tip 10 engages with the bent corner 2a. Then, by applying force to the force application device 8 in a pulling direction (a direction that moves the bent corner 2a toward the device main body 5), the transmission member 9 is moved toward the device main body 5, and the tip 10 applies force to the bent corner 2a in the force application direction (toward the device main body 5). As a result, as shown in Figure 7, the cold bent glass unit 2 is bent in the force application direction. Note that with the tip 10 configured as shown in the figure, it is also possible to apply force to the force application device 8 in a pushing direction (a direction that moves the bent corner 2a away from the device main body 5).

[0024] Having the transmission member 9 extend along the side surface of the sash 4 in this manner provides the following advantages. The cold bent glass units 2 bent using the cold bent technique are attached to the wall surface of a building and arranged in a row. In this case, if the transmission member 9 extends along the side surface of the cold bent glass units 2, the device main body 5 can be removed from the cold bent glass units 2 by pulling out the transmission member 9, even after the cold bent glass units 2 have been arranged in a row. Specifically, if a worker removes the bolts 10C on the building frame side from the building side and then removes the retaining member 10b, the device main body 5 can be pulled out together with the force application device 8. Furthermore, even after multiple cold bent glass units 2 have been arranged on the wall surface of a building, the device main body 5 can be reattached and the cold bent glass units 2 bent again by inserting the transmission member 9 through the gap between adjacent cold bent glass units, allowing for fine adjustments to the bending. In addition, when the transmission member 9 extends along the side of the cold bent glass unit 2, the transmission member 9 and the side of the cold bent glass unit 2 may be in contact with each other, or they may be parallel with a small gap between them.

[0025] To achieve a similar effect, as shown in FIG. 11, the tip 10 may be formed by a notch 10d provided in the transmission member 9 and a protrusion 10e protruding from the side surface of the cold bent glass unit 2. In this case, as shown in FIG. 12, the transmission member 9 is moved along the cold bent glass unit 2 until the protrusion 10e fits into the notch 10d. This engages the tip 10 with the bent corner 2a. This engagement operation also simply requires the transmission member 9 to be aligned with the side surface of the cold bent glass unit 2, so even after multiple cold bent glass units 2 have been installed on a building wall, they can be smoothly inserted and removed through the gaps between adjacent cold bent glass units 2. Furthermore, the tip 10 in the example of FIG. 11 can withstand both pushing and pulling forces applied by the force application device 8, as in the example of FIG. 9.

[0026] Furthermore, to achieve the same effect, as shown in FIGS. 13 and 14 , a through hole 10f may be formed at the tip of the transmission member 9, and a holding member 10g having a generally C-shaped cross section with a right angle may be attached to the tip of the transmission member 9 via a bolt 10h. This allows the tip 10 to engage with the bent corner 2a. At this time, the holding member 10g is disposed on the side of the cold bent glass unit 2 opposite the device body 5. Even with this structure, if the bolt 10h is removed from the building frame, the transmission member 9 can slide along the side of the cold bent glass unit 2. Therefore, even after multiple cold bent glass units 2 are installed on the building wall, the transmission member 9 can be smoothly inserted and removed through the gap between adjacent cold bent glass units 2. Furthermore, the tip 10 in the example of FIG. 13 can withstand both pushing and pulling forces applied by the force application device 8.

[0027] FIG. 15 shows an example of a cold vent device 1 according to the present invention having a tip portion 10 as shown in FIGS. 13 and 14 . FIG. 16 is a front view of the longitudinal portion of FIG. 15 , and FIG. 17 is a front view of the transverse portion. In this example, a jack is used as the force application device 8. While any type of jack can be used, the example shown in the figure shows a screw-type pantograph jack. This example also shows a fastener 14 for attaching the cold vent glass unit 2 to the building frame. The fastener 14 is fixed to the sash 4 and is secured to a fastener (not shown) on the building frame via a bolt or the like. The retainer member 10g can also function as a fastener by having a substantially C-shaped cross section with right-angled corners. Other configurations, functions, and effects are similar to those of the examples shown in FIGS. 5 to 8 . When the jack is raised in the state shown in FIG. 15 , a pulling force is applied to the vent corner portion 2a, as shown in FIGS. 18 and 19 . That is, the vent corner portion 2a is moved (bent) toward the device body 5. Even in such a cold vent device 1, the cold vent glass unit 2 can be bent. [Explanation of symbols]

[0028] 1: cold vent device, 2: cold vent glass unit, 2a: vent corner, 3: glass plate, 4: sash, 4: intermediate material, 5: device body, 6: fixing unit, 6a: through hole, 6b: bolt, 6c: spacer, 6d: mounting piece, 6e: mounting piece, 7: through hole, 8: force application device, 9: transmission member, 10: tip, 10a: pressing piece, 10b: pressing member, 10c: bolt, 10d: notch, 10e: protrusion, 10f: through hole, 10g: pressing member, 10h: bolt, 11: connecting part, 12: sling, 13: hook, 14: fastener

Claims

1. a device body to be disposed on one side of a cold bent glass unit comprising a rectangular glass plate and a sash covering the periphery of the glass plate; a force applying device attached to the device body for applying a force to a bent corner portion which is one corner of the cold bent glass unit; a transmission member extending from the force application device toward the bent corner portion; a tip portion located at a tip of the transmission member and abutting or engaging with the bent corner portion; a fixing unit for fixing the device body and the cold bent glass unit to each other so as to maintain a constant distance therebetween in a portion excluding the corner portion of the bent glass, The cold vent device according to claim 1, wherein the fixing unit has a plate-shaped mounting piece, and the mounting piece is fixed to a side surface of the cold vent glass unit.

2. 2. The cold vent device according to claim 1, wherein the device body is formed of a frame that follows the outer edge of the cold vent glass unit.

3. 2. The cold vent device according to claim 1, wherein the transmission member extends along a side surface of the cold vent glass unit.

4. 2. The cold vent device according to claim 1, wherein the device body is provided with a ring-shaped connecting portion to be connected to a sling.

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