Calf hatch

Abstract

To provide a heat-shielding sheet for calf hatches that is easy to attach to and remove from calf hatches. [Solution] A heat-shielding sheet 100 for a calf hatch that has heat-insulating properties by reflecting sunlight and is installed on the left side wall portion 12, the right side wall portion 13, the rear wall portion 15, and the ceiling portion 14 of the calf hatch 10, with double-sided tapes 131 to 138 pre-attached to the sides facing the left side wall portion 12, the right side wall portion 13, the rear wall portion 15, and the ceiling portion 14 of the calf hatch 10.

Description

Technical Field

[0001] This invention relates to a heat-insulating sheet for a calf hatch.

Background Art

[0002] In order to raise calves a few months old in a hygienic environment, for example, a calf hatch may be used to raise calves. This type of calf hatch aims to provide an environment where calves can avoid sunlight and rain.

[0003] This calf hatch needs to be easily installed or detached in order to maintain a hygienic environment.

[0004] Therefore, a technique for constructing a cardboard calf hatch is disclosed, which consists of a cardboard roof, side walls, and a door, and the side walls and the roof are fixed in a U-shape. The folded parts formed on both sides of the roof cover the outer sides of the upper parts of the left and right side walls of the side walls, and the folded part formed on the upper part of the back wall of the side walls is folded inward and overlaps the roof, and is appropriately fixed at each overlapping part. Further, a door is formed in the center of the door part, and the folded parts formed on both sides overlap and are fixed to the opening ends of the side walls to form an assembled cardboard calf hatch (for example, see Patent Document 1).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] The technique shown in Patent Document 1 is a technique for constructing a calf hatch using lightweight cardboard as a member. Therefore, there is a possibility that heat insulation when sunlight hits is not considered.

[0007] Furthermore, in addition to cardboard, materials such as FRP or polyethylene may be used for the exterior walls and ceiling of the calf hatch. However, regardless of which material was used, there was a risk that heat shielding when sunlight hit the calf hatch would not be considered.

[0008] Furthermore, if insulating sheets or sun-reflective sheets were to be installed on the exterior walls and ceiling of the calf hatch, it was necessary to cover the calf hatch with an insulating flat sheet or a box-shaped tent and tie it to the calf hatch with ropes. Therefore, there was a risk that the process of installing or attaching the heat-shielding sheet to the calf hatch, as well as removing it, would be time-consuming. Furthermore, with the installation and fixing methods for the insulating sheets described above, there was a risk that the heat-shielding effect would decrease due to the sheets shifting due to wind, rain, etc.

[0009] Furthermore, when attaching the heat-shielding sheet directly to the cow hatch with adhesive, there was a risk that the adhesive would dry out during application, or that variations in strength would occur.

[0010] Therefore, this invention has been made in view of the above-mentioned problems, and aims to provide a heat-shielding sheet for calf hatches that is easy to apply to and remove from calf hatches. [Means for solving the problem]

[0011] Embodiment 1; One or more embodiments of the present invention propose a heat-shielding sheet for a calf hatch that has heat-insulating properties by reflecting sunlight and is installed on the wall surface and ceiling surface of the calf hatch, wherein double-sided tape is pre-applied to the side facing the wall surface or ceiling surface of the calf hatch.

[0012] Embodiment 2; One or more embodiments of the present invention propose a heat-shielding sheet for a calf hatch that has heat-insulating properties by reflecting sunlight and is installed on the wall surface and ceiling surface of a calf hatch, wherein a pair of hook-and-loop fasteners are attached in advance to the side facing the wall surface or ceiling surface of the calf hatch so that the loop surface or hook surface is exposed. [Effects of the Invention]

[0013] According to one or more embodiments of the present invention, the process of attaching or removing the heat-shielding sheet for the calf hatch to the calf hatch can be facilitated. [Brief explanation of the drawing]

[0014] [Figure 1] This is a schematic diagram of a calf hatch viewed from the front upper side when a heat-shielding sheet for a calf hatch according to the first embodiment of the present invention is installed in the calf hatch. [Figure 2] This is a schematic diagram of the heat shield sheet for the calf hatch, showing a magnified view of section AA in Figure 1 from the front. [Figure 3] This is an unfolded view from above of a calf hatch heat shield sheet for a calf hatch that covers the left and right side walls and ceiling surface of a calf hatch according to the first embodiment of the present invention, where (a) shows the sheet with double-sided tape attached continuously, and (b) shows the sheet with double-sided tape attached separately. [Figure 4] This is an unfolded view from the rear of a heat-shielding sheet for a calf hatch that covers the rear wall of a calf hatch according to the first embodiment of the present invention, where (a) shows the sheet with double-sided tape applied continuously and (b) shows the sheet with double-sided tape applied separately. [Figure 5] This is a schematic diagram showing the process of attaching or removing a heat-shielding sheet for a calf hatch according to the first embodiment of the present invention to or from a calf hatch. [Figure 6] This is a schematic diagram of a calf hatch viewed from the front upper side when a heat-shielding sheet for a calf hatch according to the second embodiment of the present invention is installed in the calf hatch. [Figure 7]It is a schematic diagram of a heat insulation sheet for a car hatch, with the BB part shown in FIG. 6 enlarged and viewed from the front side. [Figure 8] It is a development view of a heat insulation sheet for a car hatch according to the first embodiment of the present invention. (a) is a view seen from above in a state where the heat insulation sheet for the car hatch covering the left and right sides and the ceiling surface of the car hatch is spread out, and (b) is a view seen from the rear side of the heat insulation sheet for the car hatch covering the rear side facing the entrance of the car hatch. [Figure 9] It is a schematic diagram when attaching or detaching a heat insulation sheet for a car hatch according to the second embodiment of the present invention to or from the car hatch.

Mode for Carrying Out the Invention

[0015] Hereinafter, the heat insulation sheets 100 and 100A for car hatches according to the present embodiment will be described with reference to FIGS. 1 to 9. In the drawings, the arrows UP, FR, and RH appropriately shown indicate the upper side, the front side, and the right side (one side in the width direction), respectively, with the front wall portion 11 provided with the opening of the car hatch 10 as the front side, when viewed from the front side of the car hatch 10. In the following description, when using the directions of up and down, front and rear, and left and right for explanation, unless otherwise specified, they shall indicate the up and down direction, the front and rear direction, and the left and right direction of the car hatch 10. The directions of the heat insulation sheets 100 and 100A for car hatches according to the present embodiment indicate the directions in the state where they are disposed on the car hatch 10.

[0016] <First Embodiment> The configuration of the heat insulation sheet 100 for a car hatch according to the present embodiment will be described with reference to FIGS. 1 to 5.

[0017] (Regarding the car hatch 10) As shown in FIG. 1, the car hatch 10 can be exemplified as a car hatch having a front wall portion 11 provided with an opening on the front side. Here, a car hatch is, for example, a small movable hut for individually raising calves (carves) of cows. The calf hatch 10 is a livestock shed having a space enclosed by a front wall 11, a left side wall 12, a right side wall 13, and a rear wall 15 as wall surfaces, and a ceiling 14 as a ceiling surface. The calf hatch 10 is formed from, for example, a resin material such as FRP or wood. When wood is the material used for the calf hatch 10, it is constructed by combining individually formed front wall section 11, left side wall section 12, right side wall section 13, ceiling section 14, and rear wall section 15. Furthermore, if the calf hatch 10 is made of resin such as FRP, the front wall portion 11, the left side wall portion 12, the right side wall portion 13, the ceiling portion 14, and the rear wall portion 15 are integrally molded. An opening is provided in the front wall 11 of the calf hatch 10 so that livestock can enter and exit the calf hatch 10.

[0018] (Regarding the heat-shielding sheet 100 for calf hatches) As shown in Figure 1, the heat shield sheet 100 for the calf hatch is composed of a main sheet 110 and a rear sheet 120. The heat-shielding sheet 100 for the calf hatch is formed using a heat-shielding sheet 20 that has heat-insulating properties by reflecting sunlight, and is placed on the wall surface and ceiling surface of the calf hatch 10.

[0019] As shown in Figure 2, a surface sheet 21 is provided on one side of the heat-shielding sheet 20 in the form of a thin sheet made of a material such as aluminum. An insulating layer 22 is formed on the inside of the surface sheet 21, for example, using a material such as resin or polyethylene. On the other side of the heat-shielding sheet 20, a back sheet 23 is provided, which is formed in the shape of a thin sheet from a material such as aluminum. The heat-shielding sheet 20 has a multilayer structure consisting of a surface sheet 21, an insulating layer 22, and a back sheet 23. The heat-shielding sheet 100 for the calf hatch is attached so that the side with the surface sheet 21 faces outwards from the calf hatch 10. The heat-shielding sheet 100 for the calf hatch has double-sided tapes 131 to 138 attached continuously or discretely to the surface on which the back sheet 23 is provided.

[0020] Double-sided tapes 131 to 138 are pre-attached to the heat-shielding sheet 100 for the calf hatch, either continuously or discretely, on the side facing the wall surface of the calf hatch 10 (left side wall section 12, right side wall section 13, and rear wall section 15) or the ceiling surface of the calf hatch 10 (ceiling section 14).

[0021] (Regarding main sheet 110) The main sheet 110 is a sheet that covers the left side wall portion 12, the right side wall portion 13, and the ceiling portion 14 of the calf hatch 10, and is formed by pre-cutting the heat shield sheet 20 according to the shape of the left side wall portion 12, the right side wall portion 13, and the ceiling portion 14 of the calf hatch 10. As shown in Figure 3, the main sheet 110 is formed in a roughly rectangular shape, for example. Furthermore, double-sided tapes 131 to 134 are applied continuously to all sides of the main sheet 110 facing the calf hatch 10, as shown in Figure 3(a), or discretely, as shown in Figure 3(b).

[0022] (Regarding the rear seat 120) The rear sheet 120 is a sheet that covers the rear wall portion 15 of the calf hatch 10, and is formed by cutting the heat shield sheet 20 in advance according to the shape of the rear wall portion 15 of the calf hatch 10. Furthermore, double-sided tapes 135-138 are applied continuously to all sides of the rear seat 120 facing the calf hatch 10, as shown in Figure 4(a), or discretely, as shown in Figure 4(b).

[0023] <Effects and Actions> The operation and effects of the heat shielding sheet 100 for the calf hatch according to this embodiment will be explained using Figure 5.

[0024] When attaching the main sheet 110 of the heat-shielding sheet 100 for the calf hatch to the calf hatch 10, for example, the attachment should begin from the lower front side of the left side wall portion 12 of the calf hatch 10.

[0025] At this time, double-sided tapes 131 to 138 are pre-attached to the main sheet 110 in the optimal position for attaching the main sheet 110 to the calf hatch 10. Furthermore, double-sided tapes 131 to 134 are pre-attached to all sides of the main sheet 110, either continuously or discretely. Furthermore, the main sheet 110 is pre-cut according to the shape of the left side wall 12, ceiling 14, and right side wall 13 of the calf hatch 10.

[0026] After attaching the main sheet 110 to the lower front side of the left side wall 12, the main sheet 110 is attached to the lower part of the left side wall 12 along the lower part of the left side wall 12, from the front to the rear of the calf hatch 10, using double-sided tape 134.

[0027] Next, while pulling the main sheet 110 upwards, align it with the front of the calf hatch 10 and attach the main sheet 110 to the front of the left side wall 12 of the calf hatch 10 towards the ceiling 14 using double-sided tape 131. Next, while pulling the main sheet 110 upwards, attach the main sheet 110 to the rear side of the left side wall 12 of the calf hatch 10 towards the ceiling 14 using double-sided tape 133.

[0028] Furthermore, as shown in AR1 of Figure 5, the main sheet 110 is attached to the front side of the right side wall 13 of the calf hatch 10, from the ceiling portion 14 toward the front side of the right side wall 13, using double-sided tape 131, while following the front side of the calf hatch 10. Furthermore, while aligning the main sheet 110 along the rear side of the calf hatch 10, the main sheet 110 is attached to the rear side of the right side wall 13 of the calf hatch 10 via double-sided tape 131, moving from the ceiling portion 14 toward the rear side of the right side wall 13.

[0029] Then, while aligning the main sheet 110 along the lower side of the right side wall portion 13 of the calf hatch 10, the main sheet 110 is attached to the lower side of the right side wall portion 13 of the calf hatch 10 via double-sided tape 132, starting from the lower front side of the right side wall portion 13 and moving towards the lower rear side.

[0030] When peeling the main sheet 110 from the calf hatch 10, for example, as shown by arrow AR2, the double-sided tapes 131 and 132 are peeled off the main sheet 110 from the right side wall portion 13 of the calf hatch 10, starting from the front lower side of the right side wall portion 13 and moving towards the rear upper side of the right side wall portion 13. Then, the main sheet 110 is peeled off, for example, in the reverse order of application.

[0031] When attaching the rear sheet 120 of the heat shield sheet 100 for the calf hatch to the calf hatch 10, for example, the attachment should begin from the lower left side of the rear wall portion 15 of the calf hatch 10. In this case, since the rear sheet 120 has double-sided tape 135 to 138 attached to it in advance, the worker can attach the rear sheet 120 to the calf hatch 10 without having to procure or use any materials for attaching the rear sheet 120 to the calf hatch 10. Furthermore, by pre-applying double-sided tapes 135-138 to all sides of the rear seat 120, either continuously or discretely, the rear seat 120 is securely attached to the calf hatch 10.

[0032] After attaching the rear sheet 120 to the lower left side of the rear wall portion 15 of the calf hatch 10, the rear sheet 120 is attached to the lower part of the rear wall portion 15 via double-sided tape 137, starting from the left side of the rear wall portion 15 and moving towards the right side.

[0033] Next, while pulling the rear seat 120 upwards, align it with the right side of the calf hatch 10 and attach the rear seat 120 upwards to the right side of the rear wall 15 using double-sided tape 136. Next, while pulling the rear seat 120 upwards, align it with the left side of the calf hatch 10 and attach the rear seat 120 to the left side of the rear wall 15 using double-sided tape 138.

[0034] Then, while aligning the rear seat 120 with the ceiling portion 14 of the calf hatch 10, the rear seat 120 is attached to the upper side of the rear wall portion 15 using double-sided tape 135.

[0035] As described above, since the heat-shielding sheet 100 for the calf hatch has double-sided tapes 131 to 138 attached to it in advance, the heat-shielding sheet 100 for the calf hatch can be attached to the optimal position on the calf hatch 10. Furthermore, since the heat-shielding sheet 100 for the calf hatch has double-sided tapes 131 to 138 pre-applied to all sides of the sheet 100 in optimal positions, either continuously or discretely, workers can easily attach or detach the heat-shielding sheet 100 for the calf hatch to the wall and ceiling of the calf hatch 10 without having to procure or use any materials for attaching the sheet 100 to the calf hatch 10. Furthermore, since the heat-shielding sheet 100 for the calf hatch is pre-cut into a main sheet 110 and a rear sheet 120 according to the shape of the wall and ceiling surfaces of the calf hatch 10, workers can easily attach or detach the heat-shielding sheet 100 for the calf hatch to the wall and ceiling surfaces of the calf hatch 10 without having to perform cutting work to match the shape of the calf hatch 10 to the main sheet 110.

[0036] As described above, the heat-shielding sheet 100 for the calf hatch according to this embodiment has heat-insulating properties by reflecting sunlight, and is provided on the front wall portion 11, left side wall portion 12, right side wall portion 13, and rear wall portion 15 of the calf hatch 10, and on the ceiling portion 14 of the calf hatch 10, with double-sided tapes 131 to 138 pre-attached to the side facing the front wall portion 11, left side wall portion 12, right side wall portion 13, and rear wall portion 15 of the calf hatch 10, or the side facing the ceiling portion 14 of the calf hatch 10. In other words, the heat shield sheet 100 for the calf hatch has double-sided tapes 131 to 138 already attached to it in the optimal position when the heat shield sheet 100 for the calf hatch is attached to the calf hatch 10. Furthermore, the worker attaches the heat-shielding sheet 100 for the calf hatch to the calf hatch 10 without having to procure materials or perform any work using those materials. Therefore, since the double-sided tapes 131 to 138 are pre-attached to the optimal positions on the calf hatch heat shield sheet 100, the worker can reliably attach the calf hatch heat shield sheet 100 to the calf hatch 10. Furthermore, since the double-sided tapes 131-138 are pre-attached to the optimal position on the calf hatch heat shield sheet 100, it is possible to prevent the calf hatch heat shield sheet 100 from shifting away from the calf hatch 10 due to wind, etc., and thus maintain the heat shielding effect. Furthermore, workers can easily attach the heat-shielding sheet 100 for the calf hatch to the calf hatch 10 and easily peel the heat-shielding sheet 100 for the calf hatch from the calf hatch 10. Therefore, the workers' work efficiency improves.

[0037] In this embodiment, the heat-shielding sheet 100 for the calf hatch has double-sided tapes 131 to 138 attached to all sides, either continuously or discretely. Therefore, by pre-applying double-sided tapes 131 to 138 continuously or discretely to all sides of the calf hatch heat shield sheet 100, the worker can reliably attach the calf hatch heat shield sheet 100 to the calf hatch 10. Furthermore, since the double-sided tapes 131-138 are pre-attached to the optimal position on the calf hatch heat shield sheet 100, it is possible to prevent the calf hatch heat shield sheet 100 from shifting away from the calf hatch 10 due to wind, etc., and thus maintain the heat shielding effect. Furthermore, workers can easily attach or detach the heat-shielding sheet 100 for the calf hatch to the wall and ceiling of the calf hatch 10 without having to procure materials for attaching the sheet 100 to the calf hatch 10 or perform any work using those materials. Therefore, the workers' work efficiency improves.

[0038] The heat-shielding sheet 100 for the calf hatch according to this embodiment is pre-cut according to the shape of the front wall portion 11, left side wall portion 12, right side wall portion 13, and rear wall portion 15 which serve as the wall surfaces of the calf hatch 10, and the ceiling portion 14 which serves as the ceiling surface of the calf hatch 10. Therefore, since the heat-shielding sheet 100 for the calf hatch is pre-cut into a main sheet 110 and a rear sheet 120 according to the shape of the wall and ceiling surfaces of the calf hatch 10, the worker can easily attach or detach the heat-shielding sheet 100 for the calf hatch 10 to the wall and ceiling surfaces of the calf hatch 10 without having to perform the work of shaping the main sheet 110 to fit the calf hatch 10. Therefore, the workers' work efficiency improves.

[0039] <Second Embodiment> The configuration of the heat-shielding sheet 10A for the calf hatch according to this embodiment will be explained using Figures 6 to 9. Note that components that are denoted by the same reference numerals as those in the first embodiment have the same function, and therefore, a detailed explanation of them will be omitted.

[0040] (Regarding the heat-shielding sheet 100A for calf hatches) As shown in Figure 6, the heat shield sheet 100A for the calf hatch is composed of a main sheet 110A and a rear sheet 120A. The heat-shielding sheet 100A for the calf hatch is formed using a heat-shielding sheet 20 that has heat-insulating properties by reflecting sunlight, and is placed on the wall surface and ceiling surface of the calf hatch 10.

[0041] As shown in Figure 7, the heat-shielding sheet 100A for the calf hatch is attached so that the side with the surface sheet 21 faces outwards from the calf hatch 10. On the surface of the calf hatch heat shield sheet 100, loop tapes 231b to 238b, which serve as the loop side of a pair of hook-and-loop fasteners, or hook tapes 231a to 238a, which serve as the hook side, are attached in advance, either continuously or discretely.

[0042] In this embodiment, the following description assumes that hook tapes 231a to 238a are attached to the heat shielding sheet 100A for the calf hatch. In this embodiment, loop tapes 231b to 238b that are paired with hook tapes 231a to 238a are attached to the calf hatch 10 side.

[0043] (Regarding hook-and-loop fasteners 231-238) The hook-and-loop fasteners 231-238 are composed of hook tapes 231a-238a and loop tapes 231b-238b. Hook tapes 231a to 238a are attached, for example, to the heat shield sheet 100A for the calf hatch, and loop tapes 231b to 238b are attached to the left side wall 12, the right side wall 13, the ceiling 14, and the rear wall 15 of the calf hatch 10.

[0044] (Regarding main sheet 110A) The main sheet 110A is formed by pre-cutting the heat shield sheet 20 according to the shape of the left side wall portion 12, the right side wall portion 13, and the ceiling portion 14 of the calf hatch 10. As shown in Figure 8(a), the main sheet 110A is formed in a roughly rectangular shape, for example. Furthermore, hook tapes 231a to 238a are attached continuously or discretely to all sides of the main sheet 110A that face the calf hatch 10. Loop tapes 231b to 234b, which are paired with hook tapes 231a to 234a, are pre-attached to the calf hatch 10 side.

[0045] (Regarding rear seat 120A) The rear seat 120A is formed by pre-cutting the heat shield sheet 20 according to the shape of the rear wall portion 15 of the calf hatch 10. Specifically, the rear seat 120A is formed in the shape of the rear wall portion 15 of the calf hatch 10, as shown in Figure 8(b). Furthermore, hook tapes 235a to 238a are attached continuously or discretely to all sides of the rear seat 120A facing the calf hatch 10. Loop tapes 235b to 238b, which are paired with hook tapes 235a to 238a, are pre-attached to the calf hatch 10 side.

[0046] <Effects and Actions> The operation and effects of the heat shielding sheet 100A for the calf hatch according to this embodiment will be explained using Figure 9. In the following explanation, the loop tapes 231b to 238b to be attached to the calf hatch 10 are assumed to be attached in advance to the predetermined positions on the calf hatch 10.

[0047] When attaching the main sheet 110A of the heat shield sheet 100A for the calf hatch to the calf hatch 10, for example, the attachment should begin from the lower front side of the left side wall portion 12 of the calf hatch 10.

[0048] At this time, hook tapes 231a to 234a are pre-attached to the main sheet 110A in the optimal position for attaching the main sheet 110 to the calf hatch 10. Furthermore, hook tapes 231a to 234a are pre-attached to all sides of the main sheet 110A, either continuously or discretely. Furthermore, the main sheet 110A is pre-cut according to the shape of the left side wall 12, the right side wall 13, and the ceiling 14 of the calf hatch 10.

[0049] After attaching the main sheet 110A to the lower front side of the left side wall 12, the hook tape 234a of the main sheet 110A is attached to the loop tape 234b of the lower side of the left side wall 12, starting from the lower front side of the calf hatch 10 and moving towards the lower rear side, along the lower part of the left side wall 12.

[0050] Next, while aligning the main sheet 110A along the front side of the calf hatch 10, attach the hook tape 231a of the main sheet 110A to the loop tape 231b on the front side of the left side wall 12, towards the ceiling 14. Next, while aligning the main sheet 110A along the rear side of the calf hatch 10, attach the hook tape 233a of the main sheet 110A to the loop tape 233b on the rear side of the left side wall 12, towards the ceiling 14.

[0051] Furthermore, as shown by arrow AR3 in Figure 9, while aligning the main sheet 110A along the front side of the calf hatch 10, the hook tape 231a of the main sheet 110A is attached to the loop tape 231b on the front side of the right side wall 13, moving from the ceiling portion 14 towards the lower front side of the right side wall portion 13. While aligning the main sheet 110A along the rear side of the calf hatch 10, attach the hook tape 233a from the ceiling portion 14 towards the lower rear side of the right side wall portion 13 to the loop tape 233b on the rear side of the right side wall portion 13 of the calf hatch 10.

[0052] Then, while aligning the main sheet 110 along the lower side of the right side wall 13 of the calf hatch 10, the hook tape 232a is attached to the loop tape 232b on the lower side of the right side wall 13 of the calf hatch 10, from the lower front side to the lower rear side of the right side wall 13.

[0053] When peeling the main sheet 110 from the calf hatch 10, for example, as shown by arrow AR4, the hook tape 231a and hook tape 232a are peeled off the main sheet 110 from the right side wall portion 13 of the calf hatch 10, starting from the front lower side of the right side wall portion 13 and moving towards the rear upper side of the right side wall portion 13. Then, the main sheet 110 is peeled off, for example, in the reverse order of application.

[0054] When attaching the rear sheet 120A of the heat-shielding sheet 100A for the calf hatch to the calf hatch 10, for example, the attachment should begin from the lower left side of the rear wall portion 15 of the calf hatch 10. After aligning the rear seat 120A to the lower left side of the rear wall portion 15 of the calf hatch 10, the hook tape 237a is attached to the loop tape 237b along the lower part of the rear wall portion 15, from the left side to the right side.

[0055] Next, while aligning the rear seat 120A along the right side of the calf hatch 10, attach the hook tape 236a to the loop tape 236b on the right side of the rear seat 120A. Next, while aligning the rear seat 120A along the left side of the calf hatch 10, attach the hook tape 238a to the loop tape 238b on the left side of the rear seat 120A.

[0056] Then, while aligning the rear seat 120A along the ceiling portion 14 of the calf hatch 10, the hook tape 235a is attached to the loop tape 235b on the rear wall portion 15 of the calf hatch 10.

[0057] As described above, by having hook tapes 231 to 238 pre-attached to the heat shield sheet 100 for the calf hatch, the hook-and-loop fasteners 213 to 238 are positioned on the heat shield sheet 100 for the calf hatch in an optimal location for attaching the main sheet 110 to the calf hatch 10. The heat-shielding sheet 100A for calf hatches has hook tapes 231a to 238a attached to all sides of the heat-shielding sheet 100A in advance, either continuously or discretely. Therefore, the heat shield sheet 100A for the calf hatch is securely attached to the calf hatch 10. Furthermore, workers can easily attach or detach the heat-shielding sheet 100A for the calf hatch to the wall and ceiling of the calf hatch 10 without having to procure or perform any work involving materials for attachment to the calf hatch 10. Furthermore, the heat-shielding sheet 100A for the calf hatch is pre-cut into a main sheet 110A and a rear sheet 120A according to the shape of the wall and ceiling surfaces of the calf hatch 10. Therefore, workers can easily attach or detach the heat-shielding sheet 100A for the calf hatch to the wall and ceiling of the calf hatch 10 without having to cut the main sheet 110A to match the shape of the calf hatch 10. Furthermore, the heat-shielding sheet 100A for calf hatches facilitates the bonding process by allowing the hook tape to be easily peeled off and repositioned from the loop tape.

[0058] As described above, the heat-shielding sheet 100A for the calf hatch according to this embodiment has heat-insulating properties by reflecting sunlight, and is provided on the front wall portion 11, left side wall portion 12, right side wall portion 13, and rear wall portion 15 of the calf hatch 10, and on the ceiling portion 14 of the calf hatch 10, with loop tapes 231b~238b or hook tapes 231a~238a attached in advance to the side facing the front wall portion 11, left side wall portion 12, right side wall portion 13, and rear wall portion 15 of the calf hatch 10, or the ceiling portion 14 of the calf hatch 10, so that the loop surface or hook surface of a pair of hook-and-loop fasteners is exposed. In other words, the heat shield sheet 100 for the calf hatch has hook-and-loop fasteners 231 to 238 pre-attached to it in the optimal position when attaching the heat shield sheet 100 for the calf hatch to the calf hatch 10. Furthermore, without having to procure materials or perform any work using materials for attaching the heat-shielding sheet 100A for the calf hatch to the calf hatch 10, the worker can attach the heat-shielding sheet 100A for the calf hatch to the calf hatch 10. Therefore, since the hook tapes 231a to 238a or loop tapes 231b to 238b are pre-attached to the calf hatch heat shield sheet 100A in the optimal position, the worker can reliably attach the calf hatch heat shield sheet 100 to the calf hatch 10. Furthermore, it is possible to prevent the heat-shielding sheet 100 for the calf hatch from shifting away from the calf hatch 10 due to wind or other factors. Furthermore, workers can easily attach the heat-shielding sheet 100A for the calf hatch to the calf hatch 10, and easily peel off and reposition the heat-shielding sheet 100A for the calf hatch from the calf hatch 10.

[0059] In this embodiment, the heat-shielding sheet 100A for the calf hatch has hook tapes 231a to 238a or loop tapes 231b to 238b, which form pairs of hook-and-loop fasteners, attached to all sides, either continuously or discretely. Therefore, since hook tapes 231a to 238a or loop tapes 231b to 238b, which form pairs of hook-and-loop fasteners, are attached to all sides of the calf hatch heat shield sheet 100A in advance, either continuously or discretely, the calf hatch heat shield sheet 100A can be securely attached to the calf hatch 10. Furthermore, workers can easily attach, detach, or reposition the heat-shielding sheet 100A for the calf hatch to the wall and ceiling of the calf hatch 10 without having to procure or perform any work involving materials for attachment to the calf hatch 10.

[0060] The heat-shielding sheet 100A for the calf hatch according to this embodiment is pre-cut according to the shape of the front wall portion 11, left side wall portion 12, right side wall portion 13, and rear wall portion 15 which are the wall surfaces of the calf hatch 10, and the ceiling portion 14 which is the ceiling surface of the calf hatch 10. Therefore, since the heat-shielding sheet 100A for the calf hatch is pre-cut into a main sheet 110A and a rear sheet 120A according to the shape of the wall and ceiling surfaces of the calf hatch 10, the worker can easily attach, peel off, or adjust the position of the heat-shielding sheet 100A for the calf hatch 10 to the wall and ceiling surfaces of the calf hatch 10 without having to perform any processing work to match the shape of the main sheet 110A to the calf hatch 10.

[0061] As described above with reference to the drawings, the embodiments of this disclosure have been explained in detail. However, all heat shield sheets for calf hatches that can be designed and implemented by those skilled in the art based on the heat shield sheet 100 for calf hatches described above as an embodiment of this disclosure, are also within the technical scope of this invention, insofar as they encompass the gist of this disclosure. Within the scope of the concept of this invention, a person skilled in the art would be able to conceive of various modifications and alterations, and it is understood that such modifications and alterations also fall within the technical scope of this invention. For example, any embodiment described above that a person skilled in the art has modified by adding, deleting, or changing the design of components, or by adding, omitting, or changing the conditions of processes, is also included within the technical scope of the present invention, as long as it retains the gist of the present invention.

[0062] Furthermore, any other effects and advantages brought about by the embodiments described herein that are obvious from the description herein or that can be appropriately conceived by a person skilled in the art are naturally considered to be brought about by the present invention. Various inventions can be formed by appropriately combining the multiple components disclosed in the above embodiments. For example, some components may be removed from all the components shown in the embodiment. Furthermore, components from different embodiments may be combined as appropriate. [Explanation of symbols]

[0063] 10; Calf hatch 100; Heat shield sheet for calf hatch 100A; Heat shield sheet for calf hatch 110; Main sheet 110A; Main sheet 120; Rear seats 120A; Rear seat 131-138; Double-sided tape 231-238; hook-and-loop fasteners 231a~238a; Hook tape 231b~238b; Loop Tape

Claims

1. A heat-shielding sheet for a calf hatch that has heat-insulating properties by reflecting sunlight and is installed on the wall surface and ceiling surface of the calf hatch, A heat-shielding sheet for a calf hatch, with double-sided tape pre-applied to the side facing the wall surface of the calf hatch or the ceiling surface of the calf hatch.

2. The heat shield sheet for a calf hatch according to claim 1, wherein the double-sided tape is applied to all sides continuously or discretely.

3. The heat-shielding sheet for a calf hatch according to claim 2, which is pre-cut according to the shape of the wall surface and the ceiling surface of the calf hatch.

4. A heat-shielding sheet for a calf hatch that has heat-insulating properties by reflecting sunlight and is installed on the wall surface and ceiling surface of the calf hatch, A heat-shielding sheet for a calf hatch is attached in advance to the side of the calf hatch facing the wall or ceiling surface of the calf hatch, such that the loop or hook side of a pair of hook-and-loop fasteners is exposed.

5. The heat shield sheet for a calf hatch according to claim 4, wherein one of the pair of hook-and-loop fasteners is attached to all sides continuously or discretely.

6. The heat-shielding sheet for a calf hatch according to claim 5, which is pre-cut according to the shape of the wall surface and the ceiling surface of the calf hatch.

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