Waterproof packing and operation panel

Abstract

The waterproof packing (3) has a frame shape, and an edge extending in the height direction of the frame shape is divided into a plurality of divided pieces (31) by dividing parts. The waterproof packing (3) has a joint area that is a dividing surface of two divided pieces (31) facing each other in the height direction along the depth direction of the waterproof packing (3), and the joint area of ​​the divided piece (31) located on the lower side in the height direction has a connection area where the height of the joint area changes in the height direction, an outer joint area that is an area outside the frame shape with the connection area as a boundary, and an inner joint area that is an area inside the frame shape with the connection area as a boundary. The position of the connection area in the height direction is higher than the position of the outer joint edge that is the outer end of the waterproof packing (3) in the outer joint area, or the position of the inner joint edge that is the inner end of the waterproof packing (3) in the inner joint area in the height direction is higher than the position of the outer joint edge.

Description

[Technical field]

[0001] The present disclosure relates to a waterproof packing and an operation panel that prevent the intrusion of liquid. [Background technology]

[0002] Conventionally, in order to realize an airtight or waterproof structure of a device, multiple parts may be assembled using seals. Patent Document 1 describes a joint structure of a seal member that realizes an airtight structure of a casing of a ventilation device. The joint structure of a seal member described in Patent Document 1 is used in a state where two or more prismatic seal members are joined together, the joint portion of one seal member has a concave structure, and the joint portion of the other seal member has a convex structure that fits into the concave structure, and the joint portion of one seal member and the joint portion of the other seal member are fitted together.

[0003] Machine tools such as cutting machines are provided with an operation panel for a user to operate the machine tool. Some operation panels have a structure in which an operation panel body, on which a display device, buttons and switches for user operation are assembled, is attached to a housing with a waterproof packing sandwiched therebetween. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2002-364752 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when the sealing member joining structure described in Patent Document 1 is applied to the above-mentioned operation panel, the joint between one sealing member and the other sealing member is exposed on the upper surface in the direction of gravity, so if a gap occurs at the joint, liquid will seep into the inside of the sealing member from the outside due to the effect of gravity.

[0006] The present disclosure has been made in consideration of the above, and has an object to provide a waterproof gasket that has multiple divided pieces and can prevent liquid from entering due to the influence of gravity. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems and achieve the object, the waterproof packing according to the present disclosure is a waterproof packing having a frame shape, and an edge extending in the height direction of the frame shape is divided into a plurality of divided pieces by a dividing portion. The waterproof packing has a joint area that is a surface along the depth direction of the waterproof packing and is a divided surface of two divided pieces facing each other in the height direction, and the joint area of ​​the divided piece located on the lower side in the height direction has a connection area where the height of the joint area changes in the height direction, an outer joint area that is an area outside the frame shape with the connection area as a boundary, and an inner joint area that is an area inside the frame shape with the connection area as a boundary. The position of the connection area in the height direction is higher than the position of the outer joint side that is the outer end of the waterproof packing in the outer joint area, or the position of the inner joint side that is the inner end of the waterproof packing in the inner joint area in the height direction is higher than the position of the outer joint side. Effect of the Invention

[0008] According to the present disclosure, it is possible to obtain an advantageous effect of a waterproof gasket having a plurality of divided pieces and capable of preventing the infiltration of liquid due to the influence of gravity. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing an example of a machine tool according to a first embodiment; [Diagram 2] FIG. 2 is a front view of the operation panel of the machine tool shown in FIG. 1; [Diagram 3] FIG. 1 is a perspective view of an example of an operation panel according to a first embodiment, seen from the front side; [Figure 4] FIG. 1 is an exploded perspective view of an example of an operation panel according to a first embodiment, as viewed from the front side; [Diagram 5] FIG. 1 is a perspective view showing a state in which a waterproof packing is adhered to an operation panel body of an operation panel according to a first embodiment, as viewed from the front side; [Figure 6] FIG. 1 is a perspective view showing a state in which a waterproof packing is adhered to an operation panel body of the operation panel according to the first embodiment, as viewed from the rear side; [Figure 7] FIG. 1 is a perspective view of a waterproof packing provided in an operation panel according to a first embodiment, seen from the front side; [Figure 8] FIG. 8 is an enlarged perspective view showing a first divided portion of the waterproof packing shown in FIG. [Figure 9] FIG. 8 is an enlarged front view showing a first divided portion of the waterproof packing shown in FIG. [Figure 10] FIG. 8 is an enlarged perspective view showing a second divided portion of the waterproof packing shown in FIG. [Figure 11] FIG. 8 is an enlarged front view showing a second divided portion of the waterproof packing shown in FIG. [Figure 12] FIG. 8 is a diagram for explaining an example of a method for setting the second divided shape of the second divided portion in the waterproof packing shown in FIG. [Figure 13] FIG. 8 is a diagram for explaining another example of a method for setting the second divided shape of the second divided portion in the waterproof packing shown in FIG. [Figure 14] FIG. 1 is a perspective view of a waterproof packing provided in an operation panel according to a first embodiment, seen from the front side; [Figure 15] FIG. 15 is an enlarged front view showing a first divided portion of the waterproof packing shown in FIG. [Figure 16] FIG. 15 is an enlarged front view showing a second divided portion of the waterproof packing shown in FIG. [Figure 17] FIG. 13 is a perspective view showing a modified example of the waterproof packing provided in the operation panel according to the first embodiment; [Figure 18] FIG. 11 is a front view showing a modified example of a waterproof packing provided in the operation panel according to the first embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The waterproof packing and the operation panel according to the embodiments will be described in detail below with reference to the drawings.

[0011] Embodiment 1 FIG. 1 is a perspective view showing an example of a machine tool 100 according to a first embodiment. FIG. 2 is a front view of an operation panel 110 included in the machine tool 100 shown in FIG. 1, as viewed from the front side. FIG. 3 is a perspective view of an example of the operation panel 110 according to the first embodiment, as viewed from the front side. FIG. 4 is an exploded perspective view of an example of the operation panel 110 according to the first embodiment, as viewed from the front side. FIG. 5 is a perspective view of a state in which a waterproof packing 3 is adhered to an operation panel main body 1 included in the operation panel 110 according to the first embodiment, as viewed from the front side. FIG. 6 is a perspective view of a state in which a waterproof packing 3 is adhered to an operation panel main body 1 included in the operation panel 110 according to the first embodiment, as viewed from the back side. The waterproof packing 3 included in the operation panel 110 shown in FIG. 3 will be described below.

[0012] Operation panel 110 according to the first embodiment includes operation panel body 1, housing 2, and frame-shaped waterproof packing 3, as shown in FIGS.

[0013] The width direction of operation panel 110 corresponds to the width direction of operation panel main body 1, housing 2, and waterproof gasket 3, and corresponds to the X-axis direction in Figures 3 to 6. The depth direction of operation panel 110 corresponds to the depth direction of operation panel main body 1, housing 2, and waterproof gasket 3, and corresponds to the Y-axis direction in Figures 3 to 6. The height direction of operation panel 110 corresponds to the height direction of operation panel main body 1, housing 2, and waterproof gasket 3, and corresponds to the Z-axis direction in Figures 3 to 6. In the Y-axis direction, the side where operation panel main body 1 is arranged is the front side. In the Y-axis direction, the side where housing 2 is arranged is the rear side.

[0014] Operation panel 110 is arranged in machine tool 100 with the width direction of operation panel 110 parallel to the horizontal direction. That is, operation panel body 1, housing 2, and waterproof packing 3 are arranged in machine tool 100 with the width direction parallel to the horizontal direction and the X-axis direction parallel to the horizontal direction.

[0015] The operation panel main body 1 is a box-shaped body in which various operation buttons, which are an operation unit for operating the display unit or the machine tool 100, are arranged on the front side 1a of the main body, which is the front of the operation panel main body 1, and an opening 1c is formed in the central area of ​​the back side 1b of the main body, which is the back side of the operation panel main body 1.

[0016] The housing 2 is a box-shaped body with an opening 2b formed in a housing front surface 2a, which is the front surface of the housing 2. The opening 2b is covered from the front side by the operation panel main body 1, as the operation panel main body 1 is attached to the housing 2 from the front side. An opening outer edge region 2c, which is a region on the housing front surface 2a adjacent to the opening 2b, comes into contact with the waterproof packing 3.

[0017] The waterproof packing 3 is sandwiched between the operation panel main body 1 and the housing 2 in the depth direction of the operation panel 110, i.e., in the Y-axis direction. The waterproof packing 3 is sandwiched between the main body back surface outer edge region (not shown), which is an area of ​​the main body back surface 1b adjacent to the outer periphery of the main body back surface 1b, and the opening outer edge region 2c of the housing 2, in a state of being in close contact with the main body back surface outer edge region and the opening outer edge region 2c. In other words, the waterproof packing 3 is sandwiched between the housing 2 and the operation panel main body 1 in the opening outer edge region 2c, which is an area of ​​the main body back surface 1b adjacent to the opening 2b on the housing front surface 2a.

[0018] The waterproof packing 3 is adhered to either the outer peripheral region of the main body rear surface 1b or the outer peripheral region 2c of the opening of the housing 2 by double-sided tape (not shown). Therefore, the waterproof packing 3 is adhered to the outer peripheral region of the main body rear surface 1b via the double-sided tape, or to the outer peripheral region 2c of the opening of the housing 2 via the double-sided tape.

[0019] FIG. 7 is a perspective view of the waterproof packing 3 included in the operation panel 110 according to the first embodiment, as viewed from the front side. FIG. 8 is an enlarged perspective view of the first divided portion 3a of the waterproof packing 3 shown in FIG. 7. FIG. 9 is an enlarged front view of the first divided portion 3a of the waterproof packing 3 shown in FIG. 7. FIG. 10 is an enlarged perspective view of the second divided portion 3b of the waterproof packing 3 shown in FIG. 7. FIG. 11 is an enlarged front view of the second divided portion 3b of the waterproof packing 3 shown in FIG. 7.

[0020] The waterproof packing 3 has a frame shape. That is, the waterproof packing 3 has a frame-shaped outer shape in the in-plane direction of the waterproof packing 3. The in-plane direction of the waterproof packing 3 is the in-plane direction of the surface seen in front view, and is a direction parallel to the in-plane direction of the main body front surface 1a of the operation panel main body 1 and the in-plane direction of the housing front surface 2a of the housing 2. That is, the waterproof packing 3 has a frame shape in the in-plane direction of the main body front surface 1a of the operation panel main body 1 and the in-plane direction of the housing front surface 2a of the housing 2. In the first embodiment, the waterproof packing 3 has a rectangular frame shape. Note that the frame shape of the waterproof packing 3 is not limited to a rectangular shape. The corners of the frame shape may be rounded. That is, the frame shape may be any shape as long as it matches the shape of the main body back surface outer edge region on the main body back surface 1b and the shape of the opening outer edge region 2c of the housing 2.

[0021] The waterproof packing 3 separates an internal region 200, which is an area inside the frame shape in the in-plane direction of the waterproof packing 3, from an external region 201, which is an area outside the frame shape in the in-plane direction of the waterproof packing 3. In this way, the frame-shaped waterproof packing 3 prevents liquid from entering the internal region 200 inside the frame shape from the external region 201 outside the frame shape.

[0022] The waterproof packing 3 has a frame shape, and opposing sides extending in the height direction of the frame shape are divided into a plurality of segments.

[0023] The waterproof gasket 3 is divided into two or more divided pieces 31 in the height direction of the waterproof gasket 3. The height direction of the waterproof gasket 3 can be said to be the height direction of the frame shape. In FIG. 7, the waterproof gasket 3 is divided into three in the height direction of the waterproof gasket 3. That is, the waterproof gasket 3 is divided at four division parts, namely, a first division part 3a, a second division part 3b, a third division part 3c, and a fourth division part 3d, into four division pieces 31, namely, a first division part 311, a second division part 312, a third division part 313, and a fourth division part 314.

[0024] The first divided portion 3a and the second divided portion 3b have a shape that is upside down in the height direction of the waterproof packing 3. The third divided portion 3c and the fourth divided portion 3d have a shape that is upside down in the height direction of the waterproof packing 3. Therefore, in the waterproof packing 3, the two divided pieces on the left and right 31 That is, two divided pieces facing each other in the width direction of the waterproof packing 3 31 The second divided piece 312 and the fourth divided piece 314 are symmetrical in shape. 31 When the fourth divided piece 314 is rotated 180 degrees around the central axis extending in the height direction of the waterproof packing 3, the left divided piece 31 is 2nd divided piece 312 Since the shape of the split pieces is 31 This makes it possible to reduce the number of different parts.

[0025] The dividing sections are provided on two opposing sides that extend in the height direction of the waterproof gasket 3 in the frame shape. The two opposing sides that extend in the height direction of the waterproof gasket 3 in the frame shape are referred to as vertical sides 51, and the two opposing sides that connect the two vertical sides 51 in the frame shape are referred to as horizontal sides 52. The vertical sides 51 are sides that extend in the height direction in the frame shape. The horizontal sides 52 are sides that extend in the width direction in the frame shape. Therefore, the frame shape of the waterproof gasket 3 has two dividing sections in one vertical side 51, which is a side that extends in the height direction in the frame shape. The dividing sections are provided only on the two opposing vertical sides 51, and are not provided on the horizontal side 52 that is located on the upper side in the height direction of the waterproof gasket 3.

[0026] The divided surfaces of the divided parts into which the frame-shaped waterproof packing 3 is divided are defined as joint regions 32 where the divided pieces 31 facing each other in the height direction of the waterproof packing 3 are joined together. In other words, the divided surfaces of the divided pieces 31 into which the waterproof packing 3 is divided are defined as joint regions 32. The joint regions 32 are planes parallel to the depth direction of the waterproof packing 3, i.e., planes parallel to the Y-axis direction. In other words, 31 The dividing surface in is a surface along the depth direction of the waterproof packing 3, that is, a surface along the Y-axis direction.

[0027] In the divided pieces 31, the joint areas 32 of two divided pieces 31 that face each other in the height direction of the waterproof packing 3 have a shape that is translated in the height direction of the waterproof packing 3, for example. For example, in FIG. 8, the joint area 32 of the first divided piece 311 and the joint area 32 of the second divided piece 312 that face each other in the height direction of the waterproof packing 3 have a shape that is translated in the height direction of the waterproof packing 3. Note that the joint area 32 of the first divided piece 311 and the joint area 32 of the second divided piece 312 do not need to have a shape that is translated in the height direction of the waterproof packing 3. In other words, the joint areas 32 of two divided pieces 31 that face each other in the height direction of the waterproof packing 3 do not need to have a shape that is translated in the height direction of the waterproof packing 3.

[0028] The bonding region 32 includes an outer bonding region 321 , an inner bonding region 322 , and a connection region 33 .

[0029] The connection region 33 is a region in the joining region 32 where the outer joining region 321 and the inner joining region 322 are connected, and is a region where the height of the joining region 32 changes. The connection region 33 is the lowermost or uppermost portion of the joining region 32. The connection region 33 has a linear or planar shape. In FIG. 7, the connection region 33 is a bent portion bent in the in-plane direction of the waterproof packing 3, but the corners of the bent portion may be smoothed.

[0030] In the bonding region 32, the region on the external region 201 side, which is the outer region of the waterproof packing 3, across the connection region 33, is defined as an outer bonding region 321, which is a first bonding region. The outer end of the waterproof packing 3 in the outer bonding region 321 is defined as an outer bonding edge 3211. The outer bonding edge 3211 is a side extending in the depth direction of the waterproof packing 3, i.e., a side extending in the Y-axis direction.

[0031] In the bonding region 32, the region on the inner side of the waterproof packing 3, that is, the internal region 200 side, with the connection region 33 as the boundary, is defined as an inner bonding region 322, which is a second bonding region. The inner end of the waterproof packing 3 in the inner bonding region 322 is defined as an inner bonding edge 3221. The inner bonding edge 3221 is a side extending in the depth direction of the waterproof packing 3, i.e., a side extending in the Y-axis direction.

[0032] In the waterproof packing 3 shown in FIG. 7, the connection region 33 is the inner end side of the waterproof packing 3 in the outer joining region 321 and is also the outer end side of the waterproof packing 3 in the inner joining region 322.

[0033] The joining region 32 having an outer joining region 321, an inner joining region 322, and a connection region 33 is shaped so that the outer joining edge 3211 in the outer joining region 321 and the inner joining edge 3221 in the inner joining region 322 have a height difference in the height direction of the waterproof gasket 3.

[0034] The divided shapes of the divided parts of the waterproof packing 3 will be described below. As shown in FIG. 7, the first divided part 3a and the third divided part 3c of the waterproof packing 3 are first shaped parts divided by the first divided shape. The first divided part 3a and the third divided part 3c have shapes symmetrical with respect to the YZ plane passing through the center of the waterproof packing 3 in the width direction. As shown in FIG. 7, the second divided part 3b and the fourth divided part 3d of the waterproof packing 3 are second shaped parts divided by the second divided shape. The second divided part 3b and the fourth divided part 3d have shapes symmetrical with respect to the YZ plane passing through the center of the waterproof packing 3 in the width direction.

[0035] First, the first divided shape will be described using the first divided portion 3a as an example. The first divided shape satisfies the first condition that "in the height direction of the waterproof packing 3, the position of the connection region 33 is higher than the position of the outer joint side 3211, which is the outer end of the waterproof packing 3 in the outer joint region 321."

[0036] In other words, the first divided shape satisfies the condition that "the inclination of the outer bonding area 321 in the height direction of the waterproof packing 3 increases from the outer area 201 side, which is the outer area of ​​the waterproof packing 3, toward the inner area 200 side, which is the inner area of ​​the waterproof packing 3." In other words, the outer bonding area 321 is an upwardly inclined surface that increases in the height direction of the waterproof packing 3 from the outer area 201 side toward the inner area 200 side.

[0037] When the divided shape of the first divided portion 3a satisfies the first condition, the inclination of the inner joint region 322 in the height direction of the waterproof packing 3 becomes lower from the external region 201 side, which is the outer region of the waterproof packing 3, toward the internal region 200 side, which is the inner region of the waterproof packing 3. In other words, when the divided shape of the divided portion satisfies the first condition, the position of the inner joint edge 3221 in the inner joint region 322 in the height direction of the waterproof packing 3 becomes lower than the position of the connection region 33.

[0038] As long as the first divided shape satisfies the first condition, the positional relationship in the height direction of the waterproof packing 3 between the outer joint side 3211 in the outer joint region 321 and the inner joint side 3221 in the inner joint region 322 does not matter.

[0039] Since the first divided portion 3a has the above-mentioned first divided shape, liquid cannot penetrate into the first divided portion 3a due to the influence of gravity. Liquid flows only from top to bottom in the direction of gravity due to the influence of gravity, and does not rise up the upward inclined surface. In other words, liquid that has dripped from above along the outer periphery of the waterproof packing 3 to the first divided portion 3a due to the influence of gravity cannot rise up the outer joint area 321 of the first divided portion 3a, which is an upward inclined surface, due to the influence of gravity, and cannot penetrate into the inside of the first divided portion 3a, and cannot penetrate from the external area 201 side, which is the outer area of ​​the waterproof packing 3, to the internal area 200 side, which is the inner area of ​​the waterproof packing 3. As a result, in the first divided portion 3a, it is possible to prevent liquid from penetrating from the external area 201 side of the waterproof packing 3 to the internal area 200 side of the waterproof packing 3 due to the influence of gravity.

[0040] Also, the third divided portion 3c, which has a shape symmetrical to the first divided portion 3a with respect to the YZ plane passing through the center of the waterproof packing 3 in the width direction, provides the same effects as the first divided portion 3a.

[0041] Next, the second divided shape will be described using the second divided portion 3b as an example. The second divided shape satisfies the second condition that "in the height direction of the waterproof packing 3, the position of the inner joint side 3221, which is the inner end of the waterproof packing 3 in the inner joint area 322, is higher than the position of the outer joint side 3211, which is the outer end of the waterproof packing 3 in the outer joint area 321."

[0042] When the divided shape of the second divided portion 3b satisfies the second condition, the inclination of the inner bonding region 322 in the height direction of the waterproof packing 3 becomes higher from the external region 201 side, which is the outer region of the waterproof packing 3, toward the internal region 200 side, which is the inner region of the waterproof packing 3. Also, the inclination of the outer bonding region 321 in the height direction of the waterproof packing 3 becomes lower from the external region 201 side, which is the outer region of the waterproof packing 3, toward the internal region 200 side, which is the inner region of the waterproof packing 3.

[0043] Thus, in the second divided shape of the second divided portion 3b, the inclination of the outer joint region 321 in the height direction of the waterproof gasket 3 becomes lower from the external region 201 side, which is the outer region of the waterproof gasket 3, toward the internal region 200 side, which is the inner region of the waterproof gasket 3, so that liquid that drips from above along the outer periphery of the waterproof gasket 3 to the second divided portion 3b due to the influence of gravity can penetrate into the outer joint region 321 due to the influence of gravity.

[0044] However, because the second divided shape of the second divided part 3b satisfies the second condition, the liquid that has entered the outer bonding area 321 cannot enter the internal area 200, which is the area inside the waterproof packing 3. In the second divided shape of the second divided part 3b, the position of the connection area 33 is lower than the position of the outer bonding area 321 in the height direction of the waterproof packing 3. For this reason, the liquid enters the inner bonding area 322 up to point A, which is at the same height as the outer bonding area 321 in the height direction of the waterproof packing 3.

[0045] However, the inner bonding area 322 has an inclined surface that slopes upward from point A toward the inner area 200. Therefore, the liquid cannot rise above point A due to the effect of gravity. This makes it possible to prevent the second divided portion 3b from allowing liquid to seep in from the outer area 201 side of the waterproof packing 3 to the inner area 200 side of the waterproof packing 3 due to the effect of gravity.

[0046] In addition, in the fourth divided portion 3d having a shape symmetrical to the second divided portion 3b with respect to the YZ plane passing through the center in the width direction of the waterproof packing 3, Second division 3b The same effect can be obtained.

[0047] Next, a method for providing a height difference in the height direction of the waterproof packing 3 between the position of the outer joint side 3211 of the outer joint region 321 and the position of the inner joint side 3221 of the inner joint region 322 so as to satisfy the second condition in the second divided shape of the second divided portion 3b described above will be described. Fig. 12 is a diagram for explaining an example of a method for setting the second divided shape of the second divided portion 3b in the waterproof packing 3 shown in Fig. 7.

[0048] 12, the angle of the inclination from the connection region 33 toward the outer joint edge 3211, which is the outer end of the waterproof packing 3 in the outer joint region 321, in the in-plane direction of the waterproof packing 3, with respect to the horizontal direction is defined as angle B. In other words, the inclination angle of the outer joint region 321 with respect to a virtual plane 41 perpendicular to the height direction of the waterproof packing 3 in the in-plane direction of the waterproof packing 3 is defined as angle B.

[0049] 12, the angle of the inclination from the connection region 33 toward the inner joint side 3221, which is the inner end of the waterproof packing 3 in the inner joint region 322, relative to the horizontal direction is defined as angle C. In other words, the inclination angle of the inner joint region 322 relative to a virtual plane 41 perpendicular to the height direction of the waterproof packing 3 in the in-plane direction of the waterproof packing 3 is defined as angle C.

[0050] Here, the angle B and the angle C are set to the same angle. The position of the connection area 33 in the width direction of the waterproof packing 3 is set to a position different from the center position α of the second divided piece 312 in the width direction of the waterproof packing 3 in the width direction of the waterproof packing 3. Here, the position of the connection area 33 is set to a position on the outer region 201 side from the center position α of the second divided piece 312 in the width direction of the waterproof packing 3 in the width direction of the waterproof packing 3. That is, the connection area 33 is located outside the frame shape of the waterproof packing 3 from the center position α of the second divided piece 312 in the width direction of the waterproof packing 3. As a result, in the second divided shape of the second divided part 3b, a height difference can be set in the height direction of the waterproof packing 3 between the position of the outer joint side 3211 of the outer joint area 321 and the position of the inner joint side 3221 of the inner joint area 322 so as to satisfy the second condition.

[0051] That is, by setting the angle B and the angle C to the same angle and shifting the position of the connection region 33 in the width direction of the waterproof packing 3 to a position different from the center position α of the second divided piece 312 in the width direction of the waterproof packing 3, the divided shape of the second divided portion 3b is set to a second divided shape that satisfies the second condition. thing can be done.

[0052] The central position α of the second split piece 312 in the width direction of the waterproof gasket 3 is the central position between the position of the outer joint edge 3211 of the outer joint area 321 and the position of the inner joint edge 3221 of the inner joint area 322 in the width direction of the waterproof gasket 3.

[0053] When one vertical side 51, which is an edge extending in one height direction in the frame shape shown in Fig. 7, has two divided parts, the first divided part 3a and the second divided part 3b shown in Fig. 12, the two divided parts have a shape that is upside down in the height direction of the waterproof packing 3. In the second divided part 3b, the outer joint region 321 and the inner joint region 322 each have one inclined surface, and the connection region 33 is located outside the frame shape of the waterproof packing 3 more than the center position α of the second divided piece 312 in the width direction of the waterproof packing 3, and has a divided shape in which the angle of inclination of the outer joint region 321 with respect to an imaginary plane 41 perpendicular to the height direction of the waterproof packing 3 and the angle of inclination of the inner joint region 322 with respect to the imaginary plane 41 are the same angle in the in-plane direction of the waterproof packing 3.

[0054] Next, another example of a method for providing a height difference in the height direction of the waterproof packing 3 between the position of the outer joint side 3211 of the outer joint region 321 and the position of the inner joint side 3221 of the inner joint region 322 so as to satisfy the second condition in the second divided shape of the second divided portion 3b described above will be described. Fig. 13 is a diagram for explaining another example of a method for setting the second divided shape of the second divided portion 3b in the waterproof packing 3 shown in Fig. 7.

[0055] 13, the angle of the inclination from the connection region 33 toward the inner joint side 3221, which is the inner end of the waterproof packing 3 in the inner joint region 322, in the in-plane direction of the waterproof packing 3, with respect to the horizontal direction is defined as angle D. In other words, the inclination angle of the inner joint region 322 with respect to a virtual plane 41 perpendicular to the height direction of the waterproof packing 3 in the in-plane direction of the waterproof packing 3 is defined as angle D.

[0056] 13, the angle of the inclination from the connection region 33 toward the outer joint side 3211, which is the outer end of the waterproof packing 3 in the outer joint region 321, in the in-plane direction of the waterproof packing 3, with respect to the horizontal direction is defined as angle E. In other words, the inclination angle of the outer joint region 321 with respect to a virtual plane 41 perpendicular to the height direction of the waterproof packing 3 in the in-plane direction of the waterproof packing 3 is defined as angle E.

[0057] Here, the angle D and the angle E are set to different angles so that the angle D is larger than the angle E, that is, the angle E<angle D. In this case, the position of the inner joint side 3221, which is the inner end of the waterproof packing 3 in the inner joint region 322, and the position of the outer joint side 3211, which is the outer end of the waterproof packing 3 in the outer joint region 321, in the height direction of the waterproof packing 3, change depending on the magnitude of the angle D and the angle E and the position of the connection region 33 in the width direction of the waterproof packing 3. Therefore, the position of the connection region 33 in the width direction of the waterproof packing 3 is adjusted so that the position of the inner joint side 3221 is higher than the position of the outer joint side 3211 in the height direction of the waterproof packing 3. As a result, in the second division shape of the second division part 3b, a height difference can be set in the height direction of the waterproof packing 3 between the position of the outer joint side 3211 of the outer joint region 321 and the position of the inner joint side 3221 of the inner joint region 322 so as to satisfy the second condition.

[0058] 13 shows a case where the connection region 33 is at the center position α of the second divided piece 312 in the width direction of the waterproof packing 3, but the position of the connection region 33 in the width direction of the waterproof packing 3 is not limited to this. The position of the connection region 33 in the width direction of the waterproof packing 3 may be set so that the position of the inner joint side 3221 is higher than the position of the outer joint side 3211 for a combination of angles D and E that satisfies the condition of angle E<angle D. This makes it possible to set a height difference in the height direction of the waterproof packing 3 between the position of the outer joint side 3211 of the outer joint region 321 and the position of the inner joint side 3221 of the inner joint region 322 so that the second divided shape of the second divided portion 3b satisfies the second condition.

[0059] In the case where one vertical side 51, which is a side extending in one height direction in the frame shape shown in Fig. 7, has two divided parts, the first divided part 3a and the second divided part 3b shown in Fig. 13, the two divided parts have a shape that is upside down in the height direction of the waterproof packing 3. In addition, the second divided part 3b has a divided shape in which the outer bonding area 321 and the inner bonding area 322 each have one inclined surface, and the angle of inclination of the inner bonding area 322 with respect to a virtual plane 41 perpendicular to the height direction of the waterproof packing 3 in the in-plane direction of the waterproof packing 3 is larger than the angle of inclination of the outer bonding area 321 with respect to the virtual plane 41, and the position of the inner bonding side 3221 is higher than the position of the outer bonding side 3211 in the height direction of the waterproof packing 3.

[0060] Next, the third division shape and the fourth division shape of the waterproof packing will be described. FIG. 14 is a perspective view of the waterproof packing 35 provided in the operation panel 110 according to the first embodiment, seen from the front side. The frame-shaped waterproof packing 35 is a modified example of the waterproof packing 3 described above, and differs from the waterproof packing 3 described above in that it has a first division part 3e, a second division part 3f, a third division part 3g, and a fourth division part 3h instead of the first division part 3a, the second division part 3b, the third division part 3c, and the fourth division part 3d. In addition, in FIG. 14 to FIG. 16, for ease of understanding, the same reference numerals as those of the waterproof packing 3 are used for the same configuration as the waterproof packing 3, and detailed description thereof will be omitted.

[0061] The waterproof gasket 35 is divided at four division portions, namely, the first division portion 3e, the second division portion 3f, the third division portion 3g, and the fourth division portion 3h, into four division pieces 31, namely, the first division piece 311, the second division piece 312, the third division piece 313, and the fourth division piece 314.

[0062] The first divided portion 3e and the second divided portion 3f have a shape that is upside down in the height direction of the waterproof packing 35. In addition, the third divided portion 3g and the fourth divided portion 3h have a shape that is upside down in the height direction of the waterproof packing 35. Therefore, in the waterproof packing 35, the two divided pieces on the left and right 31 That is, two divided pieces facing each other in the width direction of the waterproof packing 35 31 The second divided piece 312 and the fourth divided piece 314 are symmetrical in shape. 31 When the fourth divided piece 314 is rotated 180 degrees around the central axis extending in the height direction of the waterproof packing 35, the left divided piece 31 is 2nd divided piece 312 Since the shape of the split pieces is 31 This makes it possible to reduce the number of different parts.

[0063] As shown in Fig. 14, the first divided portion 3e and the third divided portion 3g of the waterproof packing 35 are third shaped portions divided by a third divided shape. The first divided portion 3e and the third divided portion 3g have shapes symmetrical with respect to the YZ plane passing through the center of the waterproof packing 35 in the width direction. As shown in Fig. 14, the second divided portion 3f and the fourth divided portion 3h of the waterproof packing 35 are fourth shaped portions divided by a fourth divided shape. The second divided portion 3f and the fourth divided portion 3h have shapes symmetrical with respect to the YZ plane passing through the center of the waterproof packing 35 in the width direction.

[0064] First, the third divided shape will be described using the first divided portion 3e as an example. The third divided shape is a modified example of the first divided shape. Fig. 15 is an enlarged front view showing the first divided portion 3e of the waterproof packing 35 shown in Fig. 14. In Fig. 15, a distance F is the difference in height between the position of the outer joint side 3211, which is the outer end of the waterproof packing 35 in the outer joint region 321, and the position of the connection region 33 in the height direction of the waterproof packing 35.

[0065] As shown in FIG. 15, in the third divided shape of the first divided portion 3e, the joining area 32 of the second divided piece 312 has a rectangular convex shape in the in-plane direction of the waterproof packing 35. Also, as shown in FIG. 15, in the third divided shape of the first divided portion 3e, the joining area 32 of the first divided piece 311 has a rectangular concave shape in the in-plane direction of the waterproof packing 35. The convex shape of the joining area 32 of the second divided piece 312 and the concave shape of the joining area 32 of the first divided piece 311 are in the same shape as the waterproof packing 35. 35 The convex shape of the joining area 32 of the second divided piece 312 and the concave shape of the joining area 32 of the first divided piece 311 are formed by arranging the waterproof packing. 35 It is not necessary to have a shape that is parallel to the height direction of the waterproof packing. 35 The joint area 32 of the two divided pieces 31 facing each other in the height direction is made of a waterproof packing. 35 It is not necessary for the shape to be a translation in the height direction.

[0066] 15, in the third divided shape of the first divided portion 3e, the outer joint region 321 in the second divided piece 312 is formed into a right-angled L shape with the side facing the inner region 200, which is the region inside the waterproof packing 35, rising up. Also, the inner joint region 322 in the second divided piece 312 is formed into a right-angled L shape with the side facing the outer region 201, which is the region outside the waterproof packing 35, rising up.

[0067] 15, in the third divided shape of the first divided portion 3e, the outer joint region 321 in the first divided piece 311 has a right-angled L shape with the side facing the inner region 200, which is the region inside the waterproof packing 35, rising up. The inner joint region 322 in the first divided piece 311 has a right-angled L shape with the side facing the outer region 201, which is the region outside the waterproof packing 35, rising up.

[0068] Further, the connection area 33 of the first divided piece 311 and the connection area 33 of the second divided piece 312 are parallel to a plane perpendicular to the height direction of the waterproof packing 35.

[0069] Therefore, the third divided shape of the first divided portion 3e is such that the joining area 32, which is the divided surface of the second divided piece 312 located on the lower side in the height direction of the waterproof packing 35, has an uneven shape with a rectangular convex shape, and the joining area 32, which is the divided surface of the first divided piece 311 located on the upper side in the height direction of the waterproof packing 35, has an uneven shape with a rectangular concave shape, and the convex shape and the concave shape are translated in the height direction of the waterproof packing 35. In the third divided shape of the first divided portion 3e, the convex shape of the joining area 32 of the second divided piece 312 is fitted into the concave shape of the joining area 32 of the first divided piece 311 when the second divided piece 312 and the first divided piece 311 are brought into close contact with each other.

[0070] The third divided shape of the first divided part 3e satisfies the condition of "distance F>0". That is, the third divided shape satisfies the third condition that "in the height direction of the waterproof packing 35, the position of the connection region 33 is higher than the position of the outer joint side 3211, which is the outer end of the waterproof packing 35 in the outer joint region 321". Since the third divided shape of the first divided part 3e has the distance F>0, the position of the connection region 33 is higher than the position of the outer joint side 3211 in the height direction of the waterproof packing 35, and therefore it is possible to prevent liquid from entering the first divided part 3e due to the effect of gravity.

[0071] For example, even if liquid drips from above along the outer periphery of the waterproof packing 35 onto the first divided portion 3e due to the effect of gravity and seeps into the outer bonding region 321, the liquid cannot rise from the outer bonding region 321 to the connection region 33 due to the effect of gravity and cannot seep into the inner region 200 side of the outer bonding region 321. This makes it possible for the first divided portion 3e to prevent liquid from seeping into the inner region 200 of the waterproof packing 35 due to the effect of gravity.

[0072] Also, the third divided portion 3g, which has a shape symmetrical to the first divided portion 3e with respect to the YZ plane passing through the center of the waterproof packing 35 in the width direction, provides the same effects as the first divided portion 3e.

[0073] Next, the fourth divided shape will be described using the second divided portion 3f as an example. The fourth divided shape is a modified example of the second divided shape. FIG. 16 is an enlarged front view showing the second divided portion 3f of the waterproof packing 35 shown in FIG. 14. In FIG. 16, a distance G is the difference in height between the position of the outer joint side 3211, which is the outer end of the waterproof packing 35 in the outer joint area 321, and the position of the connection area 33 in the height direction of the waterproof packing 35. A distance H is the difference in height between the position of the inner joint side 3221, which is the inner end of the waterproof packing 35 in the inner joint area 322, and the position of the connection area 33 in the height direction of the waterproof packing 35.

[0074] As shown in FIG. 16, in the fourth divided shape of the second divided portion 3f, the joining area 32, which is the divided surface of the third divided piece 313, is a rectangular concave shape in the in-plane direction of the waterproof packing 35. Also, as shown in FIG. 16, in the fourth divided shape of the second divided portion 3f, the joining area 32, which is the divided surface of the second divided piece 312, is a rectangular convex shape in the in-plane direction of the waterproof packing 35. And, Concave Shape and connection area 33 of second divided piece 312 Convex The shape is a shape obtained by translating the waterproof packing 35 in the height direction.

[0075] 16, in the fourth divided shape of the second divided portion 3f, the outer joint region 321 in the third divided piece 313 has a right-angled L shape with a downward-facing side toward the inner region 200, which is the region inside the waterproof packing 35. The inner joint region 322 in the third divided piece 313 has a right-angled L shape with a downward-facing side toward the outer region 201, which is the region outside the waterproof packing 35.

[0076] 16, in the fourth divided shape of the second divided portion 3f, the outer joint region 321 in the second divided piece 312 has a right-angled L shape with the side toward the inner region 200, which is the region inside the waterproof packing 35, bowing down. The inner joint region 322 in the second divided piece 312 has a right-angled L shape with the side toward the outer region 201, which is the region outside the waterproof packing 35, bowing down.

[0077] The connection area 33 of the second divided piece 312 and the connection area 33 of the third divided piece 313 are parallel to a plane perpendicular to the height direction of the waterproof packing 35.

[0078] Therefore, the fourth divided shape of the second divided portion 3f is such that the joining area 32, which is the divided surface of the third divided piece 313 located on the lower side in the height direction of the waterproof packing 35, has an uneven shape having a rectangular concave shape, and the joining area 32, which is the divided surface of the second divided piece 312 located on the upper side in the height direction of the waterproof packing 35, has an uneven shape having a rectangular convex shape, and the convex shape and the concave shape are translated in the height direction of the waterproof packing 35. In the fourth divided shape of the second divided portion 3f, when the third divided piece 313 and the second divided piece 312 are brought into close contact with each other, the convex shape of the joining area 32 of the second divided piece 312 is fitted into the concave shape of the joining area 32 of the third divided piece 313.

[0079] The fourth division shape of the second divided portion 3f satisfies the condition "H>G". That is, the fourth division shape satisfies the fourth condition that "in the height direction of the waterproof packing 35, the height difference between the position of the inner joint side 3221, which is the inner end of the waterproof packing 35 in the inner joint region 322, and the position of the connection region 33 is greater than the height difference between the position of the outer joint side 3211, which is the outer end of the waterproof packing 35 in the outer joint region 321, and the position of the connection region 33". Since the fourth division shape of the second divided portion 3f has the distance H>distance G, the position of the inner joint side 3221 is higher than the position of the outer joint region 321 in the height direction of the waterproof packing 35, and therefore it is possible to prevent the intrusion of liquid from the outer joint region 321 to the inner region 200 side due to the influence of gravity.

[0080] For example, even if liquid drips from above along the outer periphery of the waterproof packing 35 onto the second divided portion 3f due to the effect of gravity and seeps into the connection region 33 from the outer joint region 321, the liquid cannot rise from point J, which is at the same height as the outer joint edge 3211 in the height direction of the waterproof packing 35, to the inner joint region 322 above due to the effect of gravity, and cannot seep into the inner region 200 side beyond point J. This makes it possible for the second divided portion 3f to prevent liquid from seeping into the inner region 200 of the waterproof packing 35 due to the effect of gravity.

[0081] The divided shape shown in Figures 15 and 16 is such that, in two divided pieces 31 facing each other in the height direction of the waterproof gasket 35, the joint area 32 of one divided piece 31 has an uneven shape with a rectangular convex shape, and the joint area 32 of the other divided piece 31 has an uneven shape with a rectangular concave shape into which the convex shape fits.

[0082] Also, the fourth divided portion 3h, which has a shape symmetrical to the second divided portion 3f with respect to the YZ plane passing through the center of the waterproof packing 35 in the width direction, provides the same effects as the second divided portion 3f.

[0083] In addition, in the shape of the dividing portion shown in Figures 15 and 16, the width of the concave shape of the joining area 32 in the width direction of the waterproof gasket 35 is wider than the width of the convex shape of the joining area 32, and there may be a gap between the side wall of the concave shape and the side wall of the convex shape.

[0084] FIG. 17 is a perspective view showing a modified waterproof gasket 3 included in the operation panel 110 according to the first embodiment. The modified waterproof gasket 36 shown in FIG. 17 is divided into two parts at two dividing portions, the first dividing portion 3a and the fourth dividing portion 3d in the waterproof gasket 3 shown in FIG. 7. The waterproof gasket 36 also has the same effect as the waterproof gasket 3 described above. That is, it is sufficient that at least one dividing portion is provided on each of the two opposing vertical sides 51 of the frame shape. Furthermore, the position of the dividing portion on the vertical sides 51 is not limited.

[0085] The waterproof gasket 3 can be produced by cutting out the segments 31 from a large sheet of material. In this case, the outer shape of the entire waterproof gasket 3 is not cut out from the sheet of material, but each segment 31 is cut out from the sheet of material. For this reason, it is preferable that the outer shape of the segment 31 in the in-plane direction of the waterproof gasket 3 has less protrusion in the short direction of the segment 31 in the in-plane direction of the waterproof gasket 3. This can reduce material loss when cutting out the segment 31 from the sheet of material, improve the yield in manufacturing the segment 31, and improve the yield in manufacturing the waterproof gasket 3.

[0086] Therefore, the outer shape of the split pieces 31 in the in-plane direction of the waterproof packing 3 is preferably a band shape, and it is more preferable that there is little protrusion in the short direction of the split pieces 31. On the other hand, if the outer shape of the split pieces 31 in the in-plane direction of the waterproof packing 3 is L-shaped, the manufacturing yield of the split pieces 31 will be low, and the manufacturing yield of the waterproof packing 3 will be low.

[0087] Fig. 18 is a front view showing a modified example of the waterproof gasket 3 included in the operation panel 110 according to the first embodiment. In Fig. 18, for ease of understanding, the same components as those of the waterproof gasket 3 are given the same reference numerals as those of the waterproof gasket 3, and detailed description thereof is omitted. In the modified waterproof gasket 37 shown in Fig. 18, the divided portion is within the range of the short side direction of the first divided piece 311 in the in-plane direction of the waterproof gasket 37. This makes it possible to further reduce waste material when the first divided piece 311 is cut out from the material sheet.

[0088] Although the waterproof packing 3 is basically used with the divided pieces 31 of the waterproof packing 3 in close contact with each other in the height direction of the waterproof packing 3, the divided pieces 31 of the waterproof packing 3 may be used in a state where they are spaced apart from each other in the height direction of the waterproof packing 3 within a range where the effect of the waterproof packing 3 can be obtained. In this case as well, the effect of the waterproof packing 3 described above can be obtained.

[0089] By using the waterproof gasket 3 with its height direction parallel to the vertical direction or with its height direction tilted at an angle of less than 90 degrees from the vertical direction, the operation panel 110 can obtain the effects of the waterproof gasket 3 described above.

[0090] According to the above-mentioned embodiment 1, a waterproof gasket has a frame shape, and an edge extending in the height direction of the frame shape is divided into a plurality of divided pieces by a dividing portion, and among the joint areas which are surfaces along the depth direction of the waterproof gasket and which are the dividing surfaces of two divided pieces opposing each other in the height direction, the joint area of ​​the divided piece which is located lower in the height direction has a connection area which is an area where the height of the joint area changes in the height direction, an outer joint area which is an area outside the frame shape separated by the connection area, and an inner joint area which is an area inside the frame shape separated by the connection area, and a waterproof gasket is realized in which the position of the connection area in the height direction is higher than the position of the outer joint edge which is the outer end of the waterproof gasket in the outer joint area, or the position of the inner joint edge which is the inner end of the frame shape in the inner joint area in the height direction is higher than the position of the outer joint edge.

[0091] As described above, according to the waterproof gasket 3 of embodiment 1, the position of the connection region 33 in the height direction of the waterproof gasket 3 is higher than the position of the outer joining edge 3211, which is the outer end of the waterproof gasket 3 in the outer joining region 321, or the position of the inner joining edge 3221, which is the inner end of the waterproof gasket 3 in the inner joining region 322, in the height direction of the waterproof gasket 3 is higher than the position of the outer joining edge 3211, so that it is possible to prevent liquid from entering from the external region 201 side of the waterproof gasket 3 to the internal region 200 side of the waterproof gasket 3 due to the influence of gravity.

[0092] Furthermore, according to the waterproof packing 3 of the first embodiment, even if a certain gap occurs between the divided pieces 31 facing each other in the height direction of the waterproof packing 3, it is possible to prevent the intrusion of liquid.

[0093] Furthermore, according to the waterproof packing 3 of the first embodiment, by dividing the frame-like shape into a plurality of divided pieces 31, it is possible to cut each divided piece 31 out of the material sheet, rather than cutting out the entire outer shape of the waterproof packing 3 from the material sheet. This makes it possible to reduce material loss when cutting out the divided pieces 31 from the material sheet, and improve the yield in manufacturing the divided pieces 31, thereby improving the yield in manufacturing the waterproof packing 3. Furthermore, by making both ends of the divided pieces 31 into an inverted shape, it is possible to reduce the number of part types.

[0094] The configurations shown in the above embodiments are merely examples, and may be combined with other known technologies. Parts of the configurations may be omitted or modified without departing from the spirit of the invention. [Explanation of symbols]

[0095] 1 Operation pannel body, 1a Body front, 1b Body back, 1c Opening, 2 Housing, 2a Housing front, 2b Opening, 2c Area around opening, 3, 35, 36, 37 Waterproof pankin, 3a, 3e 1st segment, 3b, 3f 2nd segment, 3c, 3g 3rd segment, 3d, 3h 4th segment, 31 Segment, 32 Joint area, 33 Connecting area, 41 Virtual surface, 51 Vertical side, 52 Horizontal side, 100 Machine tool, 110 Operation pannel, 200 Internal area, 201 External area, 311 1st segment, 312 2nd segment, 313 3rd segment, 314 4th segment, 321 Outer joint area, 322 inner joint area, 3211 outer joint edge, 3221 inner joint edge, α center position.

Claims

1. A waterproof packing having a frame shape, in which a side extending in a height direction of the frame shape is divided into a plurality of divided pieces by a dividing portion, Among the joining areas which are the dividing surfaces of the two divided pieces which are opposed in the height direction and are along the depth direction of the waterproof packing, the joining area of ​​the divided piece which is located on the lower side in the height direction is a connection region where the height of the joining region changes in the height direction; an outer joint region which is an outer region of the frame shape with the connection region as a boundary; an inner joint region which is an inner region of the frame shape with the connection region as a boundary; having a position of the connection region in the height direction is higher than a position of an outer joint edge which is an outer end of the waterproof packing in the outer joint region, or a position of an inner joint edge which is an inner end of the waterproof packing in the inner joint region in the height direction is higher than a position of the outer joint edge; A waterproof packing characterized by:

2. the frame shape has two of the division portions on one side extending in the height direction, The two divided portions have a shape that is upside down in the height direction, Each of the outer bonding area and the inner bonding area is an inclined surface, the connection region is located outside the frame shape relative to a center position of the divided piece in a width direction of the waterproof packing, In the in-plane direction of the waterproof packing, an angle of inclination of the outer bonding region with respect to a virtual plane perpendicular to the height direction of the waterproof packing is equal to an angle of inclination of the inner bonding region with respect to the virtual plane; The waterproof packing according to claim 1 .

3. the frame shape has two of the division portions on one side extending in the height direction, The two divided portions have a shape that is upside down in the height direction, Each of the outer bonding area and the inner bonding area is an inclined surface, In the in-plane direction of the waterproof packing, an angle of inclination of the inner bonding region with respect to a virtual plane perpendicular to the height direction of the waterproof packing is larger than an angle of inclination of the outer bonding region with respect to the virtual plane, and a position of the inner bonding edge, which is an inner end of the waterproof packing in the inner bonding region in the height direction, is higher than a position of the outer bonding edge. The waterproof packing according to claim 1 .

4. In the two divided pieces facing each other in the height direction of the waterproof packing, the joining area of ​​one of the divided pieces has an uneven shape having a rectangular convex shape, and the joining area of ​​the other divided piece has an uneven shape having a rectangular concave shape into which the convex shape is fitted, The waterproof packing according to claim 1 .

5. The frame shape is rectangular; The waterproof packing according to claim 1 .

6. A waterproof packing according to any one of claims 1 to 5; A housing having an opening formed on a front surface; an operation panel main body on which a display unit or an operation unit is disposed and which covers the opening of the housing from the front side; Equipped with the waterproof packing is sandwiched between the housing and the operation panel body in an opening outer edge region that is a region adjacent to the opening on the front surface; An operation panel characterized by: