Sealing members and sealing components

Abstract

To provide sealing members and sealing components that can improve sealing performance. [Solution] The sealing member A consists of a plurality of sealing parts 10, and adjacent sealing parts 10 are connected by butting their ends together. The sealing member A is used to be interposed between a first member 1 and a second member 2, and one of the butt end faces 20 at the butt joint 5 is provided with a ridge 35 made of an elastic material that extends from one edge to the other edge.

Description

Technical Field

[0001] The present invention relates to a sealing member composed of a plurality of sealing parts and the sealing parts used therefor.

Background Art

[0002] Conventionally, various sealing members have been proposed that are composed of a plurality of sealing parts, and adjacent sealing parts engage and connect with each other at their ends (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the case of the one in Patent Document 1, if the installation space of the sealing member is not a structure that supports the sealing member from the side, the engagement between the sealing parts may come off or be displaced. Also, although the displacement can be prevented by complicating the engagement structure, there is a risk of increasing the manufacturing cost. Moreover, if the surface pressure between the sealing parts is weak in the first place, it will lead to a decrease in the sealing performance. The present invention has been proposed in consideration of such circumstances, and its object is to provide a sealing member and sealing parts capable of enhancing the sealing performance.

Means for Solving the Problems

[0005] To achieve the above objective, the sealing member of the present invention comprises a plurality of sealing parts, wherein adjacent sealing parts are connected by butting their ends together, and is used as an interposed sealing member between a first member and a second member, characterized in that one of the abutting end faces at the abutting portion is provided with a projection made of an elastic material extending from one edge to the other edge. [Effects of the Invention]

[0006] Since the sealing member and sealing component of the present invention have the above-described configuration, the occurrence of misalignment between the abutting end faces of the sealing component can be suppressed with a simple structure, and the sealing performance can be improved. [Brief explanation of the drawing]

[0007] [Figure 1] This is a schematic plan view of a sealing member according to one embodiment of the present invention. [Figure 2] (a) is a schematic perspective view of a sealing component used in a sealing member, and (b) is a partial front view of the sealing component. [Figure 3] These are explanatory diagrams of the sealing member. (a) is a schematic perspective view of the main part of the sealing component including one butt end face, (b) is a schematic perspective view of the main part of the sealing component including the other butt end face, and (c) and (d) are schematic longitudinal cross-sectional views of the main part showing the butt joint state. [Figure 4] (a) and (b) are schematic plan views of the main parts of the sealing member, respectively. [Figure 5] These are schematic longitudinal cross-sectional views of the sealing member. (a) and (b) are cross-sectional views taken along the line XX in Figure 1, and (c) and (d) are cross-sectional views taken along the line YY in Figure 1. [Figure 6] (a) to (d) are schematic end views of several other examples of sealing members. [Figure 7] (a) to (e) are schematic end views of several other examples of sealing members. [Figure 8] (a) to (d) are schematic plan views of several other examples of sealing members. [Figure 9]This is an explanatory diagram of a sealing member according to another embodiment of the present invention. (a) is a schematic perspective view of the main part of the sealing component including one butt end face, (b) is a schematic perspective view of the main part of the sealing component including the other butt end face, and (c) and (d) are schematic longitudinal cross-sectional views of the main part showing the butt state. [Modes for carrying out the invention]

[0008] Embodiments of the present invention will be described below with reference to the accompanying drawings. First, the general configuration of the sealing member A and sealing component 10 according to the embodiment will be described.

[0009] The sealing member A consists of multiple sealing parts 10, with adjacent sealing parts 10 connected by butting their ends together, and is used to be interposed between the first member 1 and the second member 2. One of the butt joint end faces 20 at the butt joint portion 5 is provided with a projection 35 made of an elastic material that extends from one edge to the other edge.

[0010] Here, the abutting portion 5 refers to the area near the respective ends of adjacent sealing parts 10, and includes the abutting end faces 20 and nearby areas such as their back sides. In this embodiment, the abutting end faces 20 of the sealing parts 10 have engaging protrusions 31 and engaging recesses 32 formed thereon, and these are also included as part of the abutting portion 5.

[0011] Next, the details of the sealing member A according to this embodiment will be described with reference to Figures 1 to 6.

[0012] Figure 1 is a schematic plan view of the sealing member A according to the first to third embodiments. This plan view shows the sealing member A positioned between the first member 1 (located on the upper side) and the second member 2 (located on the lower side). In this figure, the first member 1 is indicated by a dashed line.

[0013] As shown in Fig. 1, the second member 2 has a flat surface 2a that is substantially rectangular in plan view. The first member 1 has an annular flange portion 1a along the periphery of the first member 1 in plan view. The first member 1 and the second member 2 are assembled such that the flange portion 1a and the flat surface 2a abut against each other, as shown in Fig. 5 described later.

[0014] Various combination examples can be cited for the first member 1 and the second member 2. For example, combinations such as one being the heat exchanger cover of an internal combustion engine and the other being a heat exchanger, or one being a cylinder block and the other being an oil pan can be cited.

[0015] The first member 1 includes an opening 1f that opens to the second member 2 side. As shown in Fig. 1, the flange portion 1a is formed so as to surround the opening 1f. A groove portion 1b that opens to the second member 2 side and houses a seal member A is provided in the flange portion 1a. The groove portion 1b extends along the circumferential direction of the flange portion 1a and is formed in a substantially rectangular annular shape with four corners being rounded in plan view (when viewed in the groove depth direction).

[0016] The groove portion 1b is defined by a groove bottom 1c that is substantially parallel to the surface of the flange portion 1a that abuts against the flat surface 2a, and groove walls 1d on both sides in the groove width direction, and is in a substantially square groove shape when viewed in the groove length direction.

[0017] An enlarged portion 1e that widens in the groove width direction is provided midway in the groove length direction of this groove portion 1b. As shown in Fig. 1, the enlarged portion 1e is provided in a substantially rectangular shape in plan view. This enlarged portion 1e is formed so that the connecting portion 40 of the seal component 10 described later can be accommodated. In the illustrated example, two enlarged portions 1e are provided in the groove portion 1b for one seal component 10.

[0018] A plurality of insertion holes 1g and 2b through which fixing tools (not shown) such as bolts are inserted are provided at intervals along the groove length direction of the groove portion 1b at the peripheral edges of the first member 1 and the second member 2, respectively. The insertion holes 1g and 2b of the first member 1 and the second member 2 are provided at substantially the same positions of the first member 1 and the second member 2 so as to communicate with each other when the first member 1 and the second member 2 are combined.

[0019] The seal member A is assembled into a seal accommodation space 3 formed between the groove portion 1b of the first member 1 and the second member 2. The assembly state of the seal member A will be described later together with the description of FIG. 5.

[0020] The seal member A according to the present embodiment is annular as shown in the plan view of FIG. 1 and is formed by combining two U-shaped seal components 10. Each of the seal components 10 has two open ends, and the seal member A is formed in an annular shape by abutting the open ends against each other between the two seal components 10.

[0021] The abutting direction D is the direction of the arrow in FIG. 1. Based on this plan view, the first member 1 is arranged above in the vertical direction perpendicular to the abutting direction D, and the second member 2 is arranged below (see FIG. 5). In addition, another orthogonal direction perpendicular to the abutting direction D will be described as the side direction below.

[0022] The seal component 10 is made of an elastic material. Examples of the elastic material include rubber and a soft synthetic resin material. The seal component 10 includes a strip-shaped and substantially U-shaped seal main body portion 11 in plan view, an engaging portion 30 (engaging convex portion 31, engaging concave portion 32) arranged on the abutting end face 20, and connecting portions 40 arranged on both sides of each abutting portion 5 of the seal main body portion 11.

[0023] The seal main body portion 11 is a portion that is sandwiched between the first member 1 and the second member 2 in the vertical direction and exhibits a sealing function. The upper surface portion is the first compression portion 11a, and the lower surface portion is the second compression portion 11b. The first compression portion 11a is a portion that directly receives the pressing force from the first member 1, and the second compression portion 11b is a portion that directly receives the pressing force from the second member 2.

[0024] As shown in Figures 2(a) and 2(b), the engaging portion 30 is a part provided on the abutting end face 20 for engaging the ends of adjacent sealing parts 10 by butting them together, and it is desirable to provide it in order to suppress the occurrence of misalignment between the two abutting end faces 20.

[0025] In the example shown in Figures 3(a) and 3(b), one seal component 10 has an engaging projection 31 on the abutting end face 20 of the engaging portion 30, and the other seal component 10 has an engaging recess 32 on the abutting end face 20.

[0026] The engaging projection 31 and the engaging recess 32 only need to have a shape that allows them to engage with each other. In the example shown, as shown in Figures 3(a) and 3(b), the engaging projection 31 is conical in shape, and the engaging recess 32 is a conical recess, with two of each provided. Note that Figure 2(b) shows only one of the seal components 10 having the engaging projection 31, and the other seal component 10 is not shown.

[0027] On the butt end faces 20 of adjacent seal parts 10, an engaging projection 31 and an engaging recess 32 are formed in positions facing each other. Furthermore, both the engaging projection 31 and the engaging recess 32 are located on the inner side of the peripheral edge 21 of the butt end face 20.

[0028] Here, the periphery 21 of the butt end face 20 is the edge portion that represents the contour of the butt end face 20. However, since the butt end face 20 is formed flush with the end face of the connecting portion 43 of the connecting portion 40 which is connected laterally from the butt portion 5, a part of the periphery 21 is shown by a dashed line in Figures 2(b), 3(a)(b), and 5(a)(b).

[0029] In the examples shown in Figures 2 and 3, two engaging protrusions 31 are formed on one abutting end face 20, aligned vertically, and two engaging recesses 32 are formed on the other abutting end face 20, aligned vertically. When the two abutting end faces 20 come into contact, the engaging protrusions 31 and the engaging recesses 32 engage (see Figures 3(a) to (d)).

[0030] Furthermore, the engaging portion 30 of one butt end face 20 may include both engaging protrusions 31 and engaging recesses 32. For example, one butt end face 20 may be provided with engaging protrusions 31 and engaging recesses 32 from top to bottom, while the other butt end face 20 may be provided with engaging recesses 32 and engaging protrusions 31 from top to bottom.

[0031] One of the butt end faces 20 of the seal component 10 is further provided with a ridge 35 made of an elastic material, in addition to the engaging portion 30. In this illustrated example, the ridge 35 is formed on the butt end face 20 of the seal component 10 that has the engaging projection 31.

[0032] As mentioned above, the protrusion 35 is provided to extend from one edge to the other edge. Specifically, one edge is the edge 21a on the first compression section side, and the other edge is the edge 21b on the second compression section side. The protrusion 35 may also be provided to be separated by the engaging portion 30, as shown in the example in Figure 3(a). There are various forms of the protrusion 35, which will be described later in Figures 6 and 7.

[0033] Since this protrusion 35 is made of an elastic material, when the two abutting end faces 20 come into contact with each other, the engaging projection 31 and the engaging recess 32 engage and compress (see Figures 3(c) and 3(d)).

[0034] Next, the connecting structure between the sealing components 10 will be explained with reference to Figures 2 and 4. The connecting structure between the sealing components 10 is provided by connecting parts 40 located on both sides of the abutting portion 5.

[0035] As shown in Figure 2(a), the connecting portion 40 is a component for connecting adjacent seal components 10 in the abutting direction D. One abutting portion 5 of the seal component 10 is provided with a pair of wing-like fitting protrusions 41 for connecting with the adjacent seal component 10, and the other abutting portion 5 is provided with a pair of fitting recesses 42 for connecting with the adjacent seal component 10. In this example, since the seal member A consists of two seal components 10, their connecting portions 40 can both be arranged in the same order as shown in Figure 2(a).

[0036] The mating projection 41 has a cylindrical projection 41b located in the center of the rectangular base plate portion 41a, while the mating recess 42 has a round hole 42b located in the center of the rectangular base plate portion 42a.

[0037] As shown in Figure 4(a), corresponding to one butt joint 5, the connecting portion 40 of one seal component 10 is provided with two pairs of fitting protrusions 41, and the connecting portion 40 of the other seal component 10 is provided with two pairs of fitting recesses 42.

[0038] When the two sealing parts 10 are joined, as shown in Figures 4(a) and 4(b), the engaging projection 31 and the engaging recess 32 engage at the abutting portion 5, and the projection 41b of the fitting projection 41 is fitted into the round hole 42b of the fitting recess 42 from below, thereby connecting them.

[0039] In this way, the fitting structure between the connecting portion 40 of the two sealing components 10 connects the sealing components 10, and the close contact state between the abutting end faces 20 and the engaged state between the engaging portions 30 are maintained.

[0040] The sealing member A is formed by connecting and engaging the sealing components 10 as described above, and when used, it is positioned between the first member 1 and the second member 2 as shown in Figure 5. Figures 5(a) to (d) are longitudinal cross-sectional views showing the usage of the sealing member A when it is positioned between the first member 1 and the second member 2.

[0041] The groove 1b formed on the lower surface of the first member 1 is a seal housing space 3 formed in cooperation with the second member 2. In areas other than the abutting portion 5 of the seal component 10, the widened portion 1e of the groove 1b has a width dimension corresponding to the width dimension of the seal body 11, and has a wide shape that can accommodate the connecting portion 40 (fitting projection 41, fitting recess 42) located to the side of the abutting portion 5.

[0042] Furthermore, the seal body portion 11, when not elastically deformed, is housed so as to protrude from the opening of the groove portion 1b (see Figure 5(c)).

[0043] As shown in Figures 5(b) and 5(d), when the sealing member A is positioned in the groove 1b, and the first member 1 and the second member 2 press against each other and come into contact, closing the groove 1b, the sealing body 11 is compressed between the first compression portion 11a and the second compression portion 11b, and is slightly stretched laterally due to this compression.

[0044] Furthermore, as shown in Figure 5(b), when the groove 1b is closed by pressure from the first member 1 and the second member 2 at the butt end face 20, the space between the first compression part 11a and the second compression part 11b is compressed. When compressed, the connecting part 40, which is in a fitted state, is also subjected to pressure from the first member 1 and the second member 2 (see Figure 5(b)).

[0045] Furthermore, as shown in Figure 5(b), at the abutting end face 20, the engaging projection 31 and engaging recess 32 (the abutting end face 20 with respect to the engaging recess 32 is not shown in Figure 5) provided as engaging portions 30 are compressed by pressure and become flattened.

[0046] In this way, the sealing member A is assembled into the sealing housing space 3 (groove 1b of the first member 1) and thereby exhibits sealing properties.

[0047] With this sealing member A, since adjacent sealing parts 10 have an engagement structure with an engaging projection 31 and an engaging recess 32, misalignment between the abutting end faces 20 is less likely to occur. In particular, since the engaging portion 30 is formed within the periphery 21 of the abutting end face 20, there is almost no possibility of the engaging projection 31 shifting out of the engaging recess 32 vertically or laterally when engaged, that is, there is almost no possibility of misalignment between the abutting end faces 20. Therefore, a decrease in sealing performance due to having multiple sealing parts 10 can be suppressed.

[0048] Furthermore, because it has an engaging structure, it becomes easier to align the butt joints 5 when connecting the seal parts 10, improving assembly and work efficiency.

[0049] Furthermore, since the sealing member A has a protrusion 35 formed on the abutting end face 20 of one of the sealing parts 10 at the abutting portion 5, the surface pressure acting between the abutting end faces 20 is increased, and as a result, the sealing performance between the abutting end faces 20 is improved.

[0050] As shown in the example in Figure 3, a ridge 35 extending from the edge 21a on the first compression section side to the edge 21b on the second compression section side is effective in blocking the flow of moisture and other substances in the width direction at the abutted end face 20.

[0051] Furthermore, the protrusion 35 also contributes to improving the engagement force between the abutting end faces 20. In addition, since the protrusion 35 is formed linearly on a part of the abutting end face 20 and is formed along the direction that crosses the engaging portion 30 (engaging projection 31 in this example), there is almost no possibility that the assembly of the sealing parts 10 will become difficult.

[0052] Various configurations for the formation of the protrusion 35 on the butt end face 20 can be envisioned, as shown in Figures 6, 7, and 8. All of these examples are similar to those in Figure 3 in that the butt end face 20 is provided with a protrusion made of an elastic material extending from one edge to the other.

[0053] In particular, the protrusions 35 used in Figures 6(a) to (d) and Figures 7(a) to (e) are connected at their edges without being interrupted by the engaging portion 30, thus providing a high level of sealing performance.

[0054] First, the formation methods of the protrusions 35 shown in Figures 6(a) to (d) and 7(a) to (e) will be explained. These figures are schematic end view diagrams of the butt end faces 20. In all of these examples, the protrusions 35 are formed from one edge to the other of the peripheral edge 21 of the butt end face 20.

[0055] In a configuration where an engaging portion 30 is provided on the butt end face 20, the interlocking of the engaging projection 31 and the engaging recess 32 may impede sealing performance. Therefore, as shown in Figures 6(a) to (d) and Figures 7(a) and (b), it is preferable to isolate the engaging portion 30 by surrounding it with multiple protrusions 35 in order to improve sealing performance.

[0056] In all of the figures 6(a), (b), and (c), the protrusions 35 are arranged so as to sandwich the engaging portion 30 (engaging projection 31) provided on the butt end face 20 from both sides in the width direction (the direction perpendicular to the butt direction D in a plan view).

[0057] Specifically, in Figure 6(a), one straight ridge 35 is positioned on each side of the engaging portion 30 so as to contact or be close to the engaging portion 30, while in Figure 6(b), two straight ridges 35 are positioned on each side of the engaging portion 30 so as to contact or be close to the engaging portion 30.

[0058] In Figure 6(c), bent protrusions 35 are placed on each of the lateral edges 21c of the peripheral edge 21 of the butt end face 20 (excluding the edge 21a on the first compression side and the edge 21b on the second compression side).

[0059] Furthermore, in the cases shown in Figures 6(a), (b), and (c), protrusions 35 may also be added to the edges 21a on the first compression section side and the edges 21b on the second compression section side.

[0060] Furthermore, in Figures 6(d) and 7(a)(b), the protrusions 35 are arranged so as to surround each of the engaging portions 30 (engaging projections 31).

[0061] Specifically, in Figure 6(d), multiple protrusions 35 are arranged in a grid pattern both vertically and horizontally, while in Figure 7(a), multiple protrusions 35 are arranged in a grid pattern both vertically and horizontally, and other protrusions 35 are arranged along the direction that traverses the engagement portion 30, similar to Figure 3.

[0062] Furthermore, in Figure 7(b), an annular projection 35a is arranged around the engaging portion 30 (engaging projection 31) to match the circular shape of the engaging portion 30 in a front view, and the projection 35 is formed from the edge 21a on the first compression portion side to the edge 21b on the second compression portion side, including the annular projection 35a.

[0063] The designs in Figures 6(d) and 7(a) and 7(b) have each engagement portion 30 enclosed, thus providing better sealing performance than those in Figures 6(a), 6(b), and 7(c). On the other hand, the designs in Figures 6(a), 6(b), and 7(c) can be made less expensive because they require less elastic material to form the protrusions 35.

[0064] Furthermore, the protrusion 35 can also be formed on the abutting end face 20 of the seal component 10 that does not have an engagement structure. Figures 7(c) and 7(d) show examples in which the protrusion 35 is arranged on the abutting end face 20 that does not have an engagement portion 30. In Figure 7(c), one protrusion 35 is arranged in the vertical direction, and in Figure 7(d), multiple protrusions 35 are arranged in a grid pattern both vertically and horizontally.

[0065] Furthermore, the example shown in Figure 7(e) differs from the various examples described above in that the shape of the seal body portion 11 of the seal component 10 is different. As shown in Figure 7(e), the seal body portion 11 is separated into two parts by the groove 12 on both the first compression portion 11a side and the second compression portion 11b side.

[0066] At the butt end faces 20 of the seal component 10, protrusions 35 are arranged between the edges 21a and 21b on the groove bottom 12a side of the recesses 12 of the first compression portion 11a and the second compression portion 11b, along the direction that traverses the engaging portion 30.

[0067] Furthermore, even if the seal body portion 11 has a groove 12 formed therein, it goes without saying that the arrangement of the protrusions 35 is not limited to Figure 7(e), but can also be arranged in various ways, such as in Figures 6(a) to (d) and Figures 7(a) and (b).

[0068] Next, the formation patterns (protruding shapes) of the protrusions 35 shown in Figures 8(a) to 8(d) will be explained. These are schematic plan views of the abutting portions 5. In all of these examples, the protrusions 35 are formed on both sides of the engaging projections 31 at the abutting end faces 20, extending from the edge 21a on the first compression portion side to the edge 21b on the second compression portion side.

[0069] Examples of the protruding shape of the rib 35 in a plan view include a trapezoidal shape that tapers towards the tip (Figure 8(a)), a semicircular shape (Figure 8(b)), and a pointed shape (Figure 8(c)). As shown in Figures 8(b) and 8(c), it may also be made to protrude to a higher position. In this way, it is desirable to make the rib 35 tapered towards the tip so that it can be easily compressed by butting the sealing parts 10 together.

[0070] Furthermore, the one shown in Figure 8(d) is wider than the other three shapes, and its tip is formed by a small groove 35c, creating two dividing ridges 35b. The dividing ridges 35b facilitate compression, and the small groove 35c allows for proper material relief. In addition, the wide protrusion 35 enhances the lateral sealing effect.

[0071] Next, a sealing component 10 in which a protrusion 35 is provided on a butt end face 20 having an engagement recess 32 will be described with reference to Figure 9.

[0072] In the example in Figure 3, the protrusion 35 is provided on the abutting end face 20 on the engaging projection 31 side, whereas in the example in Figure 9, the protrusion 35 is not formed on the abutting end face 20 on the engaging projection 31 side, and the protrusion 35 is provided on the abutting end face 20 on the engaging recess 32 side at a position opposite to the position where the protrusion 35 is provided in Figure 3.

[0073] With respect to this sealing component 10, the configuration of the sealing component 10 other than the protrusion 35 is the same as that shown in Figures 3(a) to (d), and the same reference numerals are used, so a detailed explanation is omitted.

[0074] Furthermore, the butt joint configuration of the seal components 10 is as shown in Figures 9(c) and 9(d), which is roughly the same as that in Figure 3. The engagement between the engaging projection 31 and the engaging recess 32, and the compression of the protrusion 35, are the same as in Figure 3. Therefore, the same effect as in Figure 3 can be obtained with this seal member A as well. It goes without saying that various formation configurations shown in Figures 6 to 8 can be applied to the protrusion 35 provided on the butt end face 20 on the engaging recess 32 side.

[0075] Alternatively, protrusions 35 may be provided on each of the two abutting end faces 20. In this case, it is desirable that the protrusions 35 be provided so as not to overlap. For example, a protrusion 35 can be provided along the periphery 21 on one abutting end face 20, and a protrusion 35 can be provided along the outer edge of the engaging portion 30 on the other abutting end face 20.

[0076] The seal component 10 described above may be integrally molded using a mold (not shown), but is not limited to this. For example, the protrusion 35 may be formed by attaching other components afterwards. The engaging projection 31 may also be attached afterwards, and the engaging recess 32 may be formed by cutting.

[0077] The sealing member A and sealing component 10 described above are merely examples, and other designs are also acceptable. Furthermore, it goes without saying that the overall shapes of the sealing member A and sealing component 10 can be modified as appropriate from a design perspective. [Explanation of symbols]

[0078] 1. First member 2. Second Member 3. Seal storage space 5. Butt joint D Butt joint direction A sealing member 10 sealing parts 11 Seal body 11a First Compression Section 11b Second Compression Section 12 grooves 12a Groove bottom 20 Butt joint end faces 21 Periphery 21a Edge on the first compression section side 21b Edge on the second compression section side 21c Lateral edge 30 Engaging part 31 Engagement protrusion 32 Engaging recess 35 protrusion 35a Annular protrusion 35b Division Article 35c small groove 40 Connection part 41 Fitting protrusion 41a Substrate section 42 Fitting recess 42a Substrate section 43 Continuous section

Claims

1. A sealing member comprising multiple sealing components, wherein adjacent sealing components are connected by butting their ends together, and which is used to be interposed between a first member and a second member, A sealing member characterized in that one of the abutting end faces at the joint is provided with a projection made of an elastic material that extends from one edge to the other edge.

2. In claim 1, The sealing component comprises a first compression portion that is pressed by the first member and a second compression portion that is pressed by the second member, The sealing member is characterized in that the projection extends from the edge on the first compression portion side to the edge on the second compression portion side of the abutting end face.

3. In claim 1, The sealing member is characterized in that the aforementioned protrusions are formed continuously without interruption.

4. In claim 1, An engaging projection is provided on one of the abutting end faces of the abutting portion, and an engaging recess is provided on the other abutting end face of the abutting portion that engages with the engaging projection. The sealing member is characterized in that the protrusion is formed discontinuously in the middle of the abutting end face on which the engaging projection is provided, via the engaging projection.

5. In claim 1, An engaging projection is provided on one of the abutting end faces of the abutting portion, and an engaging recess is provided on the other abutting end face of the abutting portion that engages with the engaging projection. The sealing member is characterized in that the protrusion is formed discontinuously in the middle of the abutting end face provided with the engaging recess, via the engaging recess.

6. In claim 1, A sealing member characterized in that one of the sealing parts having the engagement projection and the sealing part having the engagement recess has a fitting projection and the other has a fitting recess, and the close contact state of the abutting end faces is maintained by the fitting of the fitting projection and the fitting recess.

7. In claim 1, The sealing member is characterized in that multiple protrusions are provided so as to cross vertically and horizontally.

8. In claim 1, The sealing member is characterized in that the protrusion is provided along the periphery of the abutting end face.

9. A sealing component used in the sealing member according to any one of claims 1 to 8.

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