JP2019030411A - Heat-resistant protection shield - Google Patents

Abstract

To provide a heat-resistant protection shield that is superior in working properties.SOLUTION: A heat-resistant protection shield 1 of the present invention is used to block the heat from a heat source object H. The heat-resistant protection shield 1 is characterized by including: a first heat-resistant protection part 2 having a predetermined shape retention, the first heat-resistant protection part 2 including a window part 23 for viewing the heat source object H through the first heat-resistant protection part 2; and a second heat-resistant protection part 3 continuously provided with the first heat-resistant protection part 2 and having flexibility.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a heat-resistant protective shield, and more particularly to a heat-resistant protective shield used for shielding heat from a heat source object.

  When inspecting a heat source object such as a high-temperature hot-rolled coil, an operator may need to approach the heat source object for inspection. In that case, it is necessary to shield the heat from the heat source object and protect the worker from the heat. For example, Patent Document 1 discloses a heat-resistant protective shield for protecting an operator from heat.

  The heat-resistant protective shield of Patent Document 1 includes a main body in which a heat insulating cushioning material is loaded between a rigid metal outer plate and an inner plate, a tempered glass monitoring window, a grip handle, and a retractable stand provided on the main body. It has. The operator grasps the grip handle, carries the heat-resistant protective shield close to the heat source object, moves it with the heat-resistant protective shield, or stands the heat-resistant protective shield with a retractable stand and opens the monitoring window. It is possible to grasp the situation of the heat source object through.

Japanese Utility Model Publication No. 5-37252

  However, since the heat-resistant protective shield of Patent Document 1 has mechanical strength, the main body has extremely high rigidity and is not flexible. For example, when carrying a heat-resistant protective shield or inspecting a heat source object while moving with a heat-resistant protective shield, an operator should use a heat-resistant protective shield Because it is not flexible, it must operate to avoid the heat shield from obstacles each time. In addition, when an operator wants to inspect a heat source object near his / her feet while moving with a heat-resistant protective shield or inspecting an inspection object with a heat-resistant protective shield standing, Due to the inflexibility of the shield, it is extremely difficult to place the heat-resistant protective shield so that the monitoring window is close to the heat source object, and it must be inspected from the monitoring window far away from the heat source object. The detailed situation cannot be grasped. As described above, the heat-resistant protective shield of Patent Document 1 has extremely poor workability as a result of lack of flexibility.

  The present invention has been made in view of the above problems, and an object thereof is to provide a heat-resistant protective shield excellent in workability.

  The heat-resistant protective shield of the present invention is a heat-resistant protective shield used for shielding heat from the heat source object, and is a first heat-resistant protective part having a predetermined shape retaining property, wherein the first heat-resistant protective shield is used. A first heat-resistant protective part provided with a window for viewing the heat source object through the part, and a second heat-resistant protective part provided continuously with the first heat-resistant protective part and having flexibility. It is characterized by.

  In addition, the first heat-resistant protective part and the second heat-resistant protective part include a heat-resistant fiber material having flexibility, and the first heat-resistant protective part includes a support frame that supports the heat-resistant fiber material. Is preferred.

  Moreover, it is preferable that the said 2nd heat-resistant protective part is provided with the length adjustment mechanism for adjusting the length of the said 2nd heat-resistant protective part.

  Moreover, it is preferable that the said window part is comprised with chemically strengthened glass.

  According to the present invention, a heat-resistant protective shield excellent in workability can be provided.

It is a figure which shows the heat-resistant protective shield which concerns on one Embodiment of this invention, (a) is a front view, (b) is a back view, (c) is a side view. It is a side view which shows the state after the length of the 2nd heat-resistant protective part of the heat-resistant protective shield of FIG. 1 was adjusted. It is a figure which shows an example of the use condition of the heat-resistant protective shield of FIG. It is a figure which shows another example of the use condition of the heat-resistant protective shield of FIG.

  Hereinafter, a heat-resistant protective shield according to an embodiment of the present invention will be described with reference to the accompanying drawings. However, the embodiment described below is merely an example, and the heat-resistant protective shield of the present invention is not limited to the following embodiment.

  As shown in FIGS. 3 and 4, the heat-resistant protective shield 1 of the present embodiment is used to block heat from the heat source object H. The heat-resistant protective shield 1 is, for example, a heat source object H and an operator W when the worker W approaches the heat source object H such as a rolled coil after hot rolling and inspects the heat source object H at an ironworks. And is used to shield the radiant heat from the heat source object H to the worker W and protect the worker W from the radiant heat. However, the heat-resistant protective shield of the present invention is not limited to the rolled coil after hot rolling. For example, high-temperature materials such as hot metal and slabs, and high-temperature equipment such as blast furnaces and incinerators are objects that become heat sources. Any object can be used to block radiant heat from the object.

  As shown in FIGS. 1A to 1C, the heat-resistant protective shield 1 of the present embodiment is continuous with the first heat-resistant protective part 2 having a predetermined shape retaining property and the first heat-resistant protective part 2. And a second heat-resistant protective part 3 having flexibility. The heat-resistant protective shield 1 is configured such that a first heat-resistant protective part 2 and a second heat-resistant protective part 3 are provided continuously in one direction (vertical direction in the figure) and extend in one direction. ing. For example, as shown in FIG. 3, the heat-resistant protective shield 1 is such that the first heat-resistant protective part 2 is positioned on the upper body side including the face of the worker W, and the second heat-resistant protective part 3 is the worker's W It is used between the heat source object H and the worker W so as to be positioned on the lower body side including the leg portion.

  The first heat-resistant protective unit 2 has a predetermined shape retaining property and shields heat from the heat source object H to the worker W. As shown in FIGS. 1A to 1C, the first heat-resistant protective part 2 is formed in a substantially rectangular plate shape extending in one direction (vertical direction in the figure), and is one end side in one direction (see FIG. A second heat-resistant protective unit 3 is continuously provided on the middle and lower ends. As will be described later, the first heat-resistant protective unit 2 is configured to be gripped by the worker W, and the worker W grips the first heat-resistant protective unit 2 so that the heat-resistant protective shield 1 is held. Can be held. The first heat-resistant protective part 2 is formed in a size that can block heat from the heat source object H to the upper body side including the face part of the worker W while being held by the worker W. . The size and shape of the first heat-resistant protective part 2 are not particularly limited, but from the viewpoint of workability, the first heat-resistant protective part 2 has a length corresponding to the worker W's head to the chest or abdomen, The size and shape having a width corresponding to the shoulder width of the person W are set.

  Here, the term “predetermined shape retention” used in the present specification has a predetermined rigidity, and even if an external force of a predetermined magnitude or less is applied, the shape before the external force is applied is substantially the same. It means a property that is kept constant. Even if the first heat-resistant protective part 2 is subjected to gravity applied to the entire heat-resistant protective shield 1 in a state where the worker W holds the first heat-resistant protective part 2 and lifts the heat-resistant protective shield 1, The shape of the one heat-resistant protective part 2 is configured to be maintained substantially constant. Even if the worker W holds the first heat-resistant protective part 2 and carries the heat-resistant protective shield 1 or works while holding the heat-resistant protective shield 1, the first heat-resistant protective part 2 is deformed. Therefore, the first heat-resistant protective part 2 can be easily arranged at an appropriate position so as to shield the upper body side of the worker W from the heat source object H.

  If the 1st heat-resistant protection part 2 has predetermined | prescribed shape retainability and can shield the heat | fever from the heat source target object H to the operator W, the structure will not be specifically limited. For example, the first heat-resistant protective part 2 may be formed in a plate shape with a single metal having a predetermined shape-retaining property such as aluminum or titanium, but in the present embodiment, the first heat-resistant protective part 2 is shown in FIGS. As shown in FIG. 2, a heat-resistant fiber material 21 and a support frame 22 that supports the heat-resistant fiber material 21 are provided. The 1st heat-resistant protective part 2 can be reduced in weight compared with the case where it forms in plate shape with a metal single-piece | unit by providing the lightweight heat-resistant fiber material 21 and the support frame 22. FIG. Accordingly, the worker W can easily carry the heat-resistant protective shield 1 by holding the first heat-resistant protective portion 2 and can also be placed at an appropriate position on the upper body side of the worker W during use. Can be easily arranged.

  The heat-resistant fiber material 21 is a member that has flexibility and shields heat from the heat source object H to the worker W. As shown in FIGS. 1A to 1C, the heat-resistant fiber material 21 is formed in a substantially rectangular cloth shape, and one surface thereof is attached to the support frame 22 by a known fixing means such as a heat-resistant tape. . The heat-resistant fiber material 21 is formed in a cloth shape with heat-resistant fibers. For example, a flame-resistant rayon fiber woven fabric or a flame-resistant fiber felt (non-woven fabric) produced by firing and carbonizing special acrylic fibers. Etc.), and an aluminum foil may be laminated on the surface thereof. The heat-resistant fiber material 21 can be configured to be lighter than a metal or the like by having a heat-resistant fiber as a constituent material. Moreover, the heat resistant fiber material 21 has high heat reflectivity by being laminated with an aluminum foil on the surface, and can efficiently shield the heat from the heat source object H. In this embodiment, the heat-resistant fiber material 21 is integrally formed of the same material as the heat-resistant fiber material 31 described later. However, the heat-resistant fiber material 21 has only to be flexible and can shield heat from the heat source object H to the worker W, and is formed as a separate body from a material different from the heat-resistant fiber material 31, The heat resistant fiber material 31 may be connected.

  The support frame 22 has a predetermined shape retaining property and supports the heat-resistant fiber material 21. The support frame 22 supports the heat resistant fiber material 21 having flexibility and imparts a predetermined shape retaining property to the heat resistant fiber material 21. As shown in FIG. 1B, the support frame 22 is arranged in an outer frame 221 formed in a substantially rectangular frame shape along the peripheral edge of the heat-resistant fiber material 21, and arranged in a grid pattern inside the outer frame 221. The inner frame 222 is provided. The outer frame 221 and the inner frame 222 are made of metal such as aluminum and have a predetermined shape retaining property. The heat-resistant fiber material 21 is attached to the frame portion of the support frame 22, and a predetermined shape retaining property is imparted to at least the attached portion. Since the support frame 22 is formed in a hollow frame shape, the support frame 22 can be configured to be lighter than that formed in a solid plate shape. As long as the support frame 22 has a predetermined shape-retaining property and can support the heat-resistant fiber material 21, the shape and material thereof are not particularly limited, and may be formed in a substantially circular shape, for example, You may form with resin which has heat resistance.

  As shown in FIGS. 1A to 1C, the first heat protection part 2 includes a window part 23 for viewing the heat source object H through the first heat protection part 2. The window portion 23 has a predetermined shape retaining property and is configured to shield heat from the heat source object H to the worker W. Since the worker W can see the heat source object H through the window 23 while bringing the first heat-resistant protective part 2 close to the heat source object H, the worker W is effectively protected from the heat from the heat source object H. The details of the heat source object H can be observed. The window part 23 is comprised by the chemically strengthened glass in this embodiment. Chemically tempered glass is glass whose surface has been tempered by a method such as a chemical tempering method, a chemical tempering method or an ion exchange tempering method. Since chemically strengthened glass has high strength, it can be reduced in weight by thinning. By configuring the window part 23 with chemically strengthened glass, the first heat-resistant protective part 2 can be further reduced in weight. Therefore, the workability of the worker W is further improved. Moreover, since the chemically strengthened glass has high strength, it can be prevented from being damaged by an impact caused by careless contact during storage or transportation.

  As shown in FIGS. 1A to 1C, the chemically strengthened glass constituting the window portion 23 is formed in a substantially rectangular shape, and is attached between the heat-resistant fiber material 21 and the support frame 22. The heat-resistant fiber material 21 has a through hole 21a in a shape corresponding to the chemically strengthened glass, and the support frame 22 has a shape corresponding to the chemically strengthened glass in the center portion of the cross-shaped inner frame 222. A space 222a is formed. The chemically strengthened glass is disposed in alignment with the through hole 21 a of the heat resistant fiber material 21 and the space 222 a of the inner frame 222. However, if the window part 23 has a predetermined shape retaining property, blocks heat from the heat source object H to the worker W, and can see the heat source object H through the first heat-resistant protective part 2, It is not limited to this embodiment. The window part 23 may be comprised by the well-known tempered glass with a mesh, for example.

  In the present embodiment, the first heat-resistant protective unit 2 includes a gripping handle 24 for the operator W to grip, as shown in FIGS. 1B and 1C. The gripping handle 24 is configured so that the worker W can hold the heat-resistant protective shield 1 when the worker W grips it. The grip handle 24 is provided on the inner frame 222 of the support frame 22 so as to protrude to the opposite side of the heat resistant fiber material 21. The grip handle 24 is shielded from the heat from the heat source object H by the heat-resistant fiber material 21, and at the same time, the hand of the worker W gripping the grip handle 24 is shielded from the heat from the heat source object H.

  The second heat-resistant protective unit 3 has flexibility and shields heat from the heat source object H to the worker W. As shown in FIGS. 1A to 1C, the second heat-resistant protective part 3 is formed in a substantially rectangular shape extending in one direction (vertical direction in the figure), and one end of the first heat-resistant protective part 2. It is continuously provided on the side (lower end side in the figure). The 2nd heat-resistant protective part 3 is formed in the magnitude | size which can block the heat | fever from the heat-source target object H to the lower body side including the leg part of the operator W. The size and shape of the second heat-resistant protective part 3 are not particularly limited, but from the viewpoint of workability, the second heat-resistant protective part 3 has a length corresponding to the chest or abdomen of the worker W and the toes, The size and shape having a width corresponding to the shoulder width of the person W are set.

  Here, the term “flexibility” used in the present specification means a property of deforming from a shape before an external force is applied when an external force of a predetermined magnitude or more is applied. The second heat-resistant protective part 3 has the flexibility to be deformed by the weight of the second heat-resistant protective part 3 when the heat-resistant protective shield 1 is lifted. It has the flexibility to deform when the second heat-resistant protective part 3 is brought into contact with another member. Therefore, when the operator W carries the heat-resistant protective shield 1, even if the second heat-resistant protective unit 3 comes into contact with the floor surface or an obstacle, the second heat-resistant protective unit 3 does not touch the floor surface or the obstacle. Therefore, it is not necessary to move the heat-resistant protective shield 1 so as to avoid the floor surface or obstacles, and the heat-resistant protective shield 1 can be easily carried. When the heat-resistant protective shield 1 is used, as shown in FIG. 3, for example, when it is desired to inspect the location of the heat source object H corresponding to the eye height of the worker W, the second heat-resistant protective shield 1 is used. Since the protection part 3 hangs substantially straight downward in the vertical direction, the protection part 3 is protected up to the vicinity of the foot of the worker W. On the other hand, as shown in FIG. 4, when it is desired to inspect the location of the heat source object H corresponding to the height of the foot of the worker W, the second heat protection part 3 is brought into contact with the floor surface. Therefore, it is easy to bring the window part 23 of the first heat-resistant protective part 2 close to the heat source object H, and the details of the heat source object H can be inspected. A heat-resistant protective shield made of a single metal cannot be formed long enough to protect the operator's feet from the viewpoint of portability and workability as described above. According to the heat-resistant protective shield 1 of the present embodiment, since the second heat-resistant protective part 3 has flexibility, even if it is formed long so as to protect the feet of the operator W, the above-described portability and Workability is not impaired. Further, since the second heat-resistant protective unit 3 can be freely folded, the heat-resistant protective shield 1 can be stored in a compact manner.

  If the 2nd heat-resistant protective part 3 has a softness | flexibility and can shield the heat | fever from the heat source target object H to the operator W, the structure will not be specifically limited. For example, the second heat-resistant protective unit 3 may include a single metal foil such as a flexible aluminum foil, or as in the present embodiment shown in FIGS. A heat-resistant fiber material 31 having flexibility may be provided.

  As shown in FIGS. 1A to 1C, the heat-resistant fiber material 31 is formed in a substantially rectangular cloth shape extending in one direction (vertical direction in the figure), and the heat-resistant fiber of the first heat-resistant protective part 2 It is formed integrally with the material 21 and is continuously provided on the first heat-resistant protective part 2. The heat-resistant fiber material 31 is formed in a cloth shape with heat-resistant fibers. For example, a flame-resistant rayon fiber woven fabric or a flame-resistant fiber felt (non-woven fabric) produced by firing and carbonizing special acrylic fibers. ) And the like, and an aluminum foil may be laminated on the surface thereof. The heat-resistant fiber material 31 has high heat reflectivity by being laminated with an aluminum foil on the surface, and can efficiently shield heat from the heat source object H. Further, the heat-resistant fiber material 31 can be configured to be lighter than a metal or the like by having heat-resistant fibers as constituent materials. Therefore, the second heat-resistant protective unit 3 can be further reduced in weight by including the heat-resistant fiber material 31. Since the heat-resistant protective shield 1 can be lightened as a whole by reducing the weight of the second heat-resistant protective part 3, the workability of the worker W can be improved and the fatigue of the worker W can be reduced. .

  As shown in FIGS. 1B and 1C, the second heat-resistant protective unit 3 includes a length adjustment mechanism 32 for adjusting the length of the second heat-resistant protective unit 3. The length adjusting mechanism 32 can adjust the length in one direction (vertical direction in the drawing) of the second heat-resistant protective unit 3. In this embodiment, the length adjusting mechanism 32 is an engagement portion (on the lower end side in the drawing) of the second heat-resistant protective portion 3 opposite to the first heat-resistant protective portion 2 ( (Male hook) 32a and a plurality of engaged portions (female hooks) 32b arranged at intervals along one direction in which the second heat-resistant protective unit 3 extends. As shown in FIG. 2, the length adjusting mechanism 32 folds the second heat-resistant protective part 3 by engaging the engaging part 32a with one of the engaged parts 32b, thereby providing the second heat-resistant protective part. The length of the part 3 can be adjusted. The heat-resistant protective shield 1 can be configured to have a length corresponding to the height of the worker W by adjusting the length of the second heat-resistant protective unit 3 according to the height of the worker W. W can work more safely because the risk of stepping on the second heat-resistant protective unit 3 is reduced. The length adjusting mechanism 32 is not limited to the present embodiment as long as the length of the second heat-resistant protective part 3 can be adjusted. For example, the second heat-resistant protective part 3 is a string-like fastener. The length may be adjusted so as to be rolled up.

  As described above, the heat-resistant protective shield 1 of the present embodiment has a predetermined shape-retaining property, the first heat-resistant protective portion 2 including the window portion 23, and the second heat-resistant protective member having flexibility. Part 3. The operator W can easily place the first heat-resistant protective part 2 in an appropriate position so that the upper body side including the face is hidden from the heat source object H by the first heat-resistant protective part 2 having a predetermined shape retaining property. Accordingly, the second heat-resistant protective part 3 can be arranged at an appropriate position so that the lower body side including the leg part is hidden from the heat source object H. The operator W can use the heat-resistant protective shield 1 (particularly, even if there is an obstacle near the foot and the position to be inspected is near the foot because the second heat-resistant protective portion 3 is flexible). The first heat-resistant protective part 2) can be easily brought close to the heat source object H, and the heat source object H can be inspected in detail. Therefore, the workability of the worker W is significantly improved by using the heat-resistant protective shield 1 of the present embodiment. Furthermore, since the second heat-resistant protective part 3 has flexibility, the second heat-resistant protective part 3 is formed to a length up to the foot of the worker W without impairing the workability of the worker W. Therefore, the heat-resistant protective shield 1 can sufficiently shield the heat from the heat source object H to the feet of the worker W. Therefore, not only the workability of the operator W but also the safety is improved by using the heat-resistant protective shield 1 of the present embodiment.

DESCRIPTION OF SYMBOLS 1 Heat-resistant protective shield 2 1st heat-resistant protective part 21 Heat-resistant fiber material 21a Through-hole 22 Support frame 221 Outer frame 222 Inner frame 222a Space 23 Window part 24 Grip handle 3 2nd heat-resistant protective part 31 Heat-resistant fiber material 32 Length Adjustment mechanism 32a Engagement part 32b Engagement part H Heat source object W Worker

Claims (4)

A heat-resistant protective shield used to block heat from a heat source object,
A first heat-resistant protective part having a predetermined shape-retaining property, the first heat-resistant protective part comprising a window part for viewing the heat source object through the first heat-resistant protective part;
A second heat-resistant protective part that is provided continuously with the first heat-resistant protective part and has flexibility;
Heat-resistant protective shield. The first heat-resistant protective part and the second heat-resistant protective part include a heat-resistant fiber material having flexibility,
The first heat-resistant protective part includes a support frame that supports the heat-resistant fiber material,
The heat-resistant protective shield according to claim 1. The second heat-resistant protective part includes a length adjusting mechanism for adjusting the length of the second heat-resistant protective part;
The heat-resistant protective shield according to claim 1 or 2. The window is made of chemically tempered glass;
The heat-resistant protective shield according to any one of claims 1 to 3.

Images