Hand hooking structure, door panel including the same, and hand hooking member

Abstract

To provide a hand hooking structure that is provided across the substantially whole region of an end surface of a door panel, has such advantages as excellent space saving and operability, and has excellent workability, and to provide a door panel including the same and a hand hooking member.SOLUTION: A hand hooking structure provided across the substantially whole region of an end surface of a door panel includes: a recess into which a finger is inserted; a front end for hooking the finger when the finger is inserted into the recess; and a wall part in a position of facing the front end. A front end-side curved part curving toward an end of the front end from the deepest part of the recess is included inside the front end. A wall part-side curved part curving toward an end of the wall part from the deepest part of the recess is included inside the wall part. A length A from the deepest part of the recess to the end of the front end is 29% or more and 38% or less of a length B from the deepest part of the recess to the end of the wall part, and A is 8 mm or more and 10 mm or less.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a handle structure, and a door panel and handle member provided with the same. [Background technology]

[0002] Conventionally, handle-shaped handle structures for opening and closing a door have been available, such as that disclosed in Patent Document 1. Such handle-shaped handle structures are designed to be gripped with the entire palm of the hand, making them easy to operate when opening and closing the door. However, because the handle structure itself must protrude from the door, space must be secured for that, which poses a problem of making it difficult to make the door compact.

[0003] In order to solve the above problems, door sections have been developed in recent years that have a handle structure provided in the same plane as the door panel.

[0004] For example, Patent Document 2 discloses a door with a handle, characterized in that the end face of the door panel to which the handle is attached protrudes in the direction of the surface of the door panel as it goes from the rear face to the front face, and the handle is formed with a handle portion that protrudes in the direction of the surface of the door panel as it goes from the rear face to the front face, and the front end of the handle portion is positioned approximately flush with the front face of the door panel.

[0005] Patent Document 3 discloses a pull handle structure for opening a door, characterized in that it comprises a concave pull handle portion into which a finger is inserted and a retainer having elasticity and / or viscosity, the pull handle portion having a front end portion on which the finger is hooked when the finger pulls the pull handle portion, and the retainer is provided on a surface opposite the front end portion in a position facing at least a part of the finger when the finger is inserted all the way into the pull handle portion. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 6364608 [Patent Document 2] Patent No. 4572787 Public Relations [Patent Document 3] Patent No. 6895840 Public Relations Summary of the Invention [Problem to be solved by the invention]

[0007] The handle structure shown in Patent Document 2, which protrudes in the direction of the surface of the door panel from the rear to the front, has the problem that the part where the hand (or finger) is hooked is inclined to a large extent, making it difficult to hook the hand (or finger) and to grip.

[0008] On the other hand, a handle structure (J-shaped handle) as shown in Patent Document 3, which has a recessed pull handle for inserting a finger and a front end portion for hooking a finger when pulling the pull handle, has the advantage of being easy to hook a finger and grip. Figure 1 shows a schematic side view of a J-shaped handle. In such a structure, the higher the front end portion 101, the easier it is to hook a finger, improving operability. However, if the front end portion 101 is too long, for example, when a top plate 400 is provided above the handle portion, the height b of the space for inserting a finger may become short, making it difficult to insert a finger.

[0009] Furthermore, when a handle structure is provided in the same plane as the door panel 200, a single decorative sheet may be applied to the entire door panel 200, including the handle structure 100, to unify the design of the entire door section. Generally, the process of applying the decorative sheet consists of the following three steps: First, adhesive is applied to the parts of the door panel 200 other than the handle structure 100, and the decorative sheet is applied (Step 1). Next, adhesive is applied to the handle structure 100 using a spray or similar method (Step 2). Finally, the decorative sheet is placed over the handle structure 100, and the decorative sheet is pressed down using a pressure jig, fingers, or similar (Step 3). At this time, if the length of the front end portion 101 is short relative to the wall portion 102, the wall portion 102 may block the path of the adhesive in the second step, making it difficult to spray the adhesive inside the front end portion 101. Furthermore, when the decorative sheet is crimped in the third step, the crimping tool or fingers may get caught on the wall portion 102, making it difficult to reach the crimping tool or fingers deep inside the front end portion 101. In this case, the crimping strength of the sheet inside the front end portion 101 may be insufficient, and the sheet may lift. On the other hand, if the length of the front end portion 101 is long, the sheet will be crimped onto the front end portion 101 while the crimping jig or fingers are held upright. In this case, however, the wall portion 102 and the crimping jig or fingers are more likely to interfere with each other, which may make it more difficult to crimp the sheet onto the inside of the front end portion 101.

[0010] As described above, the J-shaped handle has the problem that ease of handling and workability are impaired depending on the length of the front end portion 101. However, a shape of a J-shaped handle that is easy to handle and easy to work has not been studied until now.

[0011] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a handle structure that is provided over almost the entire end face of a door panel, which has the advantages of being space-saving and easy to operate, and is also easy to process, as well as a door panel and a handle member that are equipped with the handle structure. [Means for solving the problem]

[0012] In order to solve the above problem, the handle structure of the present invention is a handle structure that is provided over almost the entire end face of a door panel, and comprises a recess for inserting a finger, a front end for hooking the finger when the finger is inserted into the recess, and a wall portion located opposite the front end, and a front end side curved portion on the inside of the front end that curves from the deepest part of the recess toward the end of the front end, and a wall side curved portion on the inside of the wall that curves from the deepest part of the recess toward the end of the wall, characterized in that the length A from the deepest part of the recess to the end of the front end is 29% to 38% of the length B from the deepest part of the recess to the end of the wall, and A is 8 mm to 10 mm. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide a handle structure that has the advantages of space saving and excellent design, and that is easy to handle and process, as well as a door panel and handle member that include the same. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a schematic side view of a J-type handle. [Figure 2] 1 is a schematic perspective view showing an overview of a door panel provided with a handle structure according to an embodiment of the present application. FIG. [Figure 3] 1 is a schematic perspective view of a storage unit having a door panel with a handle structure. FIG. [Figure 4] 1 is a schematic side view of a storage unit having a door panel with a handle structure, and FIG. 2 is a schematic side view of the storage unit when the door panel of FIG. 1 is pulled forward to open it. [Figure 5] 10 is a schematic side view of another storage unit having a door panel provided with a handle structure. FIG. [Figure 6] 10 is a schematic side view of another storage unit having a door panel provided with a handle structure. FIG. [Figure 7] FIG. 10 is a schematic plan view of yet another storage unit having a door panel with a handle structure. [Figure 8]FIG. 3 is a schematic side view of the handle structure of the door panel of FIG. 2. [Figure 9] 10A and 10B are diagrams for explaining in detail the curved shape of the front end side curved portion. [Figure 10] 10A and 10B are diagrams for explaining in detail the curved shape of the wall-side curved portion. [Figure 11] FIG. 10 is a diagram showing a front end curved portion provided so as to be directly connected to the end of the front end portion. [Figure 12] 10 is a diagram showing an example in which the deepest part between the front end side curved part and the wall side curved part is linear. FIG. [Figure 13] FIG. 10 is a schematic side view showing an example in which the degree of curvature of the front end side curved portion is gentler than the degree of curvature of the wall side curved portion, and the front end side curved portion and the wall side curved portion are spaced apart. [Figure 14] FIG. 10 is a schematic side view showing an example in which the degree of curvature of the front end side curved portion is gentler than the degree of curvature of the wall side curved portion, and the front end side curved portion and the wall side curved portion are adjacent to each other. [Figure 15] FIG. 10 is a diagram showing an example in which a handle member having a handle structure is attached to a door panel. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments of the present invention will be described with reference to the drawings. To facilitate understanding of the description, the drawings referred to below show simplified or schematic configurations, and some components are omitted. Furthermore, the dimensional ratios between components shown in each drawing do not necessarily represent actual dimensional ratios.

[0016] FIG. 2 is a schematic perspective view showing an overview of a door panel 200 provided with a handle structure 100 according to one embodiment of the present application. FIG. 3 is a schematic perspective view of a storage unit 300 provided with a door panel 200 provided with a handle structure 100. FIG. 4 is a schematic side view of a storage unit 300 provided with a door panel 200 provided with a handle structure 100. FIG. 5 is a schematic side view of another storage unit 300 provided with a door panel 200 provided with a handle structure 100. FIG. 6 is a schematic side view of yet another storage unit 300 provided with a door panel 200 provided with a handle structure 100. FIG. 7 is a schematic plan view of yet another storage unit 300 provided with a door panel 200 provided with a handle structure 100. FIG. 8 is a schematic side view of the handle structure 100 of FIG. 2.

[0017] 3 to 10 are symbols indicating directions. In the following description, the front end 101 side (x1 direction) of the handle structure 100 in FIG. 3 is referred to as the front direction, and the wall 102 side (x2 direction) is referred to as the rear direction. The direction in which the bottom 302 of the storage body 300 is provided (y2 direction) is referred to as the downward direction, and the opposite side (y1 direction) is referred to as the upward direction. The direction in which the side plates 303 and 304 of the storage body are provided (z1, z2 direction) is referred to as the left-right direction.

[0018] As shown in FIG. 2, the handle structure 100 is provided over substantially the entire end surface of the door panel 200. As shown in FIG. 3, the door panel 200 can be attached to the front of the storage unit 300, for example. As shown in FIG. 4 (2), the door panel 200 can be used as a door for pulling the storage unit 300 forward. Alternatively, as shown in FIG. 5, the door panel 200 can be attached to the opening of the storage unit 300, and the door panel 200 and the lower end 600 of the opening of the storage unit 300 can be fixed with a fixing member such as a hinge, allowing the door to be used as a single-wing door. In the configurations shown in FIGS. 3 to 5, a finger is inserted into the recess 103 from above (y1 direction). However, this is not limited thereto. For example, as shown in FIG. 6, the recess 103 may be attached so that its opening faces downward (y2 direction) so that a finger can be inserted from below. Alternatively, as shown in FIG. 7, the recess 103 may be attached so that its opening faces left and right (z1, z2 direction) so that a finger can be inserted from left and right (z1, z2 direction).

[0019] The handle structure 100 will be described below with reference to Figure 8. The directions shown in Figure 8 indicate the directions when the door panel 200 is attached so that the opening of the recess 103 faces upward (y1 direction), as in Figure 3.

[0020] (recess) The handle structure 100 according to this embodiment has a recess 103 for inserting a finger. The recess 103 is recessed downward (y2 direction). Therefore, when the door panel is viewed from the front (x2 direction), the recessed portion of the recess 103, which serves as the handle, is not visible. This improves the design of the door section. Furthermore, since the handle 100 is on the same plane as the door panel 200, it is also excellent in terms of space saving.

[0021] (Front end and wall) The front end 101 is a portion for hooking a finger when the finger is inserted into the recess 103. The front end 101 extends upward (y1 direction) and left and right (z1 and z2 directions) so as to form the front side of the recess 103.

[0022] The wall portion 102 is a portion that extends upward (y1 direction) and left and right (z1 and z2 directions) so as to face the front end portion 101.

[0023] (Front end curved section and wall curved section) Preferably, a front end-side curved portion 105 curved from the deepest portion 104 of the recess toward the end of the front end 101 is provided on the inside of the front end 101, and a wall-side curved portion 106 curved from the deepest portion 104 of the recess toward the end of the wall 102 is provided on the inside of the wall 102. Here, "curving from the deepest portion 104 of the recess toward the upper end of the front end 101" refers to a state in which the slope of the tangent to the front end-side curved portion 105 becomes steeper toward the upper end of the front end 101 (the angles α1 and α2 between the extension line of the deepest portion and the tangent satisfy α2 > α1), as shown in FIG. 9. Similarly, "curving from the deepest portion 104 of the recess toward the upper end of the wall 102" refers to a state in which the slope of the tangent to the wall-side curved portion 106 increases toward the upper end of the wall 102 (the angles β1 and β2 between the extension line of the deepest portion and the tangent satisfy β2 > β1), as shown in FIG.

[0024] By providing the front end curved portion 105 and the wall side curved portion 106, when applying the decorative sheet while pressing the crimping tool or fingers inward, the tips of the crimping tool or fingers can be moved smoothly, making it easier to adhere the decorative sheet and preventing the sheet from lifting.

[0025] Furthermore, the front end curved portion 105 may be provided at a position slightly away from the end of the front end 101 as shown in Fig. 8, or may be provided so as to be directly connected to the end of the front end 101 as shown in Fig. 11. When directly connected to the end of the front end as shown in Fig. 11, it becomes easier for a crimping tool or a finger to come into contact with it.

[0026] The shapes of the front end side curved portion 105 and the wall side curved portion 106 can be, for example, a portion of a circular arc. Alternatively, they can be a portion of the circumference of an ellipse. Furthermore, embodiment 1 is an example in which the shapes of the front end side curved portion 105 and the wall side curved portion 106 are the same. When the shapes of the front end side curved portion 105 and the wall side curved portion 106 are a portion of a circular arc and the radii of the arcs are equal, it is preferable that the curvature radius F of the front end side curved portion 105 is 5 mm or more and 8 mm or less, and the curvature radius G of the wall side curved portion 106 is 5 mm or more and 8 mm or less. By making the curvature radius F of the front end side curved portion 105 5 mm or more and 8 mm or less, and the curvature radius G of the wall side curved portion 106 5 mm or more and 8 mm or less, it becomes easy to insert a finger and to apply a decorative sheet.

[0027] As shown in FIG. 12, the deepest part 104 between the front end side curved part 105 and the wall side curved part 106 may be linear.

[0028] The length A from the deepest part 104 of the recess to the upper end of the front end 101 is preferably 29% to 38% of the length B from the deepest part 104 of the recess to the end of the wall. If the length A from the deepest part 104 of the recess to the upper end of the front end 101 is less than 29% of the length B from the deepest part 104 of the recess to the end of the wall, the length of the front end 101 will be too short, making it difficult for fingers to grip, and resulting in poor operability. Furthermore, when applying adhesive by spray during the processing process, the spray will not reach the base of the interior of the front end 101. In addition, when the decorative sheet is crimped with a crimping tool or fingers, the crimping tool or fingers may get caught on the wall 102, preventing sufficient crimping of the base of the interior of the front end 101, which could result in the decorative sheet lifting. If the length A from the deepest part 104 of the recess to the top end of the front end 101 is greater than 38% of the length B from the deepest part 104 of the recess to the end of the wall, the space b for inserting a finger will be too short and operability will be impaired when the top plate 400 is provided above the door panel 200. Also, when the decorative sheet is crimped with a crimping jig or fingers, the angle at which the crimping jig or fingers are raised will become too steep, causing interference between the crimping jig or fingers and the wall 102, making it impossible to crimp the decorative sheet.

[0029] Additionally, the length A from deepest part 104 of the recess to the top end of front end 101 is preferably 8 mm or more and 10 mm or less. By making it 8 mm or more and 10 mm or less, it becomes easy for anyone to insert their fingers, regardless of the age, body type, or gender of the user.

[0030] There are no particular limitations on the distance C between the front end 101 and the wall 102. For example, if the thickness H of the door panel is 18 mm or more and 25 mm or less, the distance C between the front end 101 and the wall 102 can be 11 mm or more and 15 mm or less. If the distance C between the front end 101 and the wall 102 is 11 mm or more, the recess for inserting a finger can be made sufficiently wide. Furthermore, if it is 15 mm or less, the thickness of the front end 101 and the wall 102 can be made sufficiently thick, making the front end 101 and the wall 102 less likely to crack or warp.

[0031] The thickness D of the front end 101 is preferably 3 mm or more and 4 mm or less. If the thickness of the front end 101 is 3 mm or more, the strength of the front end 101 can be made sufficient, and cracks or chips are less likely to occur when a finger is hooked on the front end 101, which is preferable. Furthermore, if the thickness is 4 mm or less, the front end 101 can be easily pinched between the fingers and palm when the finger is hooked, and the front end 101 is easy to grip, which is preferable.

[0032] There is no particular lower limit to the thickness E of the wall 102, but if it is 4 mm or more, cracks and warping are less likely to occur. There is no particular upper limit to the thickness, but it can be, for example, 5 mm or less.

[0033] [Variations] 13 and 14 are schematic side views showing an example in which the degree of curvature of the front end side curved portion 105 is gentler than the degree of curvature of the wall side curved portion 106 in the embodiment according to the present invention.

[0034] By making the degree of curvature of front end side curved portion 105 gentler than the degree of curvature of wall side curved portion 106, the inside of front end 101 protrudes more, making it easier to apply the decorative sheet. Also, when inserting a finger, the gentle curve of front end side curved portion 105 allows the finger to be inserted further.

[0035] 13, when the front-end curved portion 105 and the wall-side curved portion 106 are part of a circular arc, it is preferable that the radius of curvature F of the front-end curved portion be 1 to 3.6 times the radius of curvature G of the wall-side curved portion. Furthermore, it is particularly preferable that the radius of curvature F of the front-end curved portion 105 be 16 to 18 mm, and the radius of curvature G of the wall-side curved portion 106 be 5 to 8 mm. By keeping the dimensions within these ranges, the decorative sheet can be more easily applied while maintaining ease of handling.

[0036] Furthermore, even when the degree of curvature of the front end side curved portion 105 is made gentler than the degree of curvature of the wall side curved portion 106, the front end side curved portion 105 and the wall side curved portion 106 may be spaced apart as shown in FIG. 13 or adjacent to each other as shown in FIG. 14.

[0037] As described above, the handle structures shown in the embodiments and modifications of the present invention can be provided, for example, over substantially the entire area of ​​the door panel and can be used as a sliding door or a hinged door.

[0038] The thickness H of the door panel 200 on which the handle structure 100 is provided is not particularly limited, but when used as a storage door, for example, it can be 18 mm or more and 25 mm or less.

[0039] As mentioned above, a decorative sheet may be attached to the surface of the door panel 200 to impart a design. There are no particular limitations on the layer structure of the decorative sheet, and for example, a decorative sheet including a base layer, a pattern layer, and a surface protection layer in this order can be used.

[0040] Furthermore, the handle structure 100 can be provided not only directly on the door panel 200, but also by attaching a handle member 700 equipped with the handle structure 100 to the door panel 200 as shown in Figure 15. The handle member 700 can be fixed to the door panel using screws 800 as shown in Figure 15. [Example]

[0041] Hereinafter, the handle structure according to the present disclosure will be described with reference to examples.

[0042] <Examples 1 to 2, Comparative Examples 1 to 3, Reference Example 1> Door panels of Examples 1 and 2 and Comparative Examples 1 to 3 each having a handle structure with the dimensions shown in Table 1 were produced. Also, as Reference Example 1, a conventional door panel with a handle structure was prepared.

[0043] <Evaluation> The door panels of Examples 1 and 2, Comparative Examples 1 to 3, and Reference Example 1 were each evaluated as follows. (1) Processability Adhesive was applied to the entire door panel, a decorative sheet was attached, and the ease of work for the worker when attaching the sheet was evaluated.

[0044] The evaluation indicators are as follows: Good: There are no areas where it is difficult to apply adhesive or attach the decorative sheet. △: There are some areas where it is difficult to apply adhesive and attach the decorative sheet. ×: It is difficult to apply the adhesive and attach the decorative sheet.

[0045] (2) Adhesion The adhesive strength was evaluated when the attached decorative sheet was peeled off.

[0046] The evaluation indicators are as follows: ◯: It is difficult to peel off. △: Some parts are easily peeled off. ×: The decorative sheet peels off easily, or after application, a portion of the sheet is already lifted.

[0047] (3) Cleanability The ease of cleaning the handle structure of the door panel was evaluated.

[0048] The evaluation indicators are as follows: 〇: Easy to clean. △: There are some areas that are difficult to clean. ×: Difficult to clean.

[0049] (4) Sensory evaluation Five panelists were asked to insert their fingers into the door panels of Examples 1 and 2 and Comparative Examples 1 to 4 in the same manner as when opening and closing the doors, and to evaluate the ease of handling.

[0050] The evaluation indicators are as follows: ◎: The easiest to handle. 〇: Easy to handle. △: There are some parts that are easy to work on. ×: Difficult to handle. Regarding ease of handling, a product was deemed to have passed if it received three or more ratings of "0" or higher.

[0051] [Table 1]

[0052] As can be seen from Table 1, the length A from the deepest part of the recess to the end of the front end is 29% or more and 38% or less of the length B from the deepest part of the recess to the end of the wall part, and A is 8 mm or more and 10 mm or less. It was found that the handle structures of Examples 1 and 2 are easy to handle and process.

[0053] On the other hand, the results of Comparative Example 1 showed that even if the ratio of the length A from the deepest part of the recess to the end of the front end was 29% or more and 38% or less, if A was 8 mm or less, it was difficult to handle. Furthermore, the results of Comparative Example 2 showed that when the length A from the deepest part of the recess to the end of the front end was 29% or less of the length B from the deepest part of the recess to the end of the wall, it was difficult to handle. Furthermore, the results of Comparative Example 3 showed that when the length A from the deepest part of the recess to the end of the front end was 38% or more of the length B from the deepest part of the recess to the end of the wall, the workability was poor. Since work was not possible in Comparative Example 3, the subsequent workability test could not be performed.

[0054] In addition, it was found that Examples 1 and 2 were easier to handle than the door panel with a handle structure of Reference Example 1, which is a conventional product.

[0055] Furthermore, compared to Example 1 in which the radius of curvature F of the front end side curved portion and the radius of curvature G of the wall side curved portion are equal, it was found that when the radius of curvature F of the front end side curved portion is larger than the radius of curvature G of the wall side curved portion (the degree of curvature of the front end side curved portion 105 is gentler than the degree of curvature of the wall side curved portion 106), it is easier to handle and has better processability.

[0056] The above describes the embodiments and examples of the present invention, but the handle structure and door panel equipped with the same, as well as the handle member of the present invention, are not limited to the above embodiments and examples, and various modifications are possible within the scope that does not impair the characteristics of the invention. [Explanation of symbols]

[0057] 100 Handle structure 101 Front end 102 Wall section 103 Recess 104 Deepest Depths 105 Front end side curved part 106 Wall side curved part 200 Door plate 300 storage unit 301 Rear wall of storage unit 302 Bottom of storage unit 303, 304 Side plates of storage body 400 top plate 500 Frame of storage body 600 hinges 700 Handle parts 800 bis A, a Length from the deepest part of the recess to the edge of the front end B: Length from the deepest part of the recess to the edge of the wall b Space for inserting fingers C Distance between front end and wall D Thickness of front end E Wall Thickness F Radius of curvature of the curved part at the front end G Radius of curvature of curved wall part H Door panel thickness Around x1, x2 y1, y2 up and down z1, z2 left and right The angle between the extension line of the deepest part of α1 and α2 and the tangent line of the curved part at the front end β1, β2: Angle between the extension line of the deepest part and the tangent of the curved part on the wall side

Claims

1. A handle structure that is provided over almost the entire end surface of the door panel, A recess for inserting a finger, a front end portion for hooking the finger when the finger is inserted into the recessed portion, and a wall portion located opposite the front end portion, a front end side curved portion curved from the deepest portion of the recess toward the end of the front end on the inside of the front end, and a wall side curved portion curved from the deepest portion of the recess toward the end of the wall on the inside of the wall, a length A from the deepest portion of the recess to the end of the front end portion is 29% or more and 38% or less of a length B from the deepest portion of the recess to the end of the wall portion, And, A is 8 mm or more and 10 mm or less.

2. 2. The handle structure according to claim 1, wherein a distance C between the front end portion and the wall portion is 11 mm or more and 15 mm or less.

3. 3. The handle structure according to claim 2, wherein the thickness D of the front end portion is 3 mm or more and 4 mm or less.

4. 4. The handle structure according to claim 3, wherein the degree of curvature of the front end side curved portion is gentler than the degree of curvature of the wall side curved portion.

5. the front end side curved portion and the wall side curved portion form a part of a circular arc, 5. The handle structure according to claim 4, wherein the radius of curvature F of the curved portion on the front end side is larger than the radius of curvature G of the curved portion on the wall side.

6. 6. The handle structure according to claim 5, wherein the radius of curvature F of the front end curved portion is 1 to 3.6 times the radius of curvature G of the wall curved portion.

7. The radius of curvature F of the curved portion on the front end side is 16 mm or more and 18 mm or less, 7. The handle structure according to claim 6, wherein the radius of curvature G of the wall-side curved portion is 5 mm or more and 8 mm or less.

8. The handle structure according to claim 7, wherein the thickness E of the wall portion is 4 mm or more and 5 mm or less.

9. A door panel comprising the handle structure according to any one of claims 1 to 8.

10. The door panel according to claim 9, wherein a decorative sheet is provided on a surface thereof.

11. A handle member comprising the handle structure according to any one of claims 1 to 8.

12. The handle member according to claim 11, which has a decorative sheet on its surface.

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