JP5456740B2 - Truss rating part protection member and truss rating structure - Google Patents

Description

  The present invention relates to a truss rating part protecting member that protects a rating part in a truss structure and a truss rating structure including the truss rating part protecting member.

  In a general truss structure such as a truss bridge, as shown in FIG. 11, the scoring portions of the long bar members constituting the truss structure are connected by a pair of gusset plates 55 that sandwich adjacent long bar members 50 therebetween. . Here, FIG. 11 shows a case where one of the adjacent long bar-shaped members 50 is the diagonal member 51 and the other is the vertical member 52, but both of the adjacent long bar-shaped members may be diagonal members.

  A box-shaped space S surrounded by adjacent long bar-shaped members 50 and a pair of gusset plates 55 exists in the grading portion of such a truss structure. And dust, earth and sand, fallen leaves, etc. are carried by the wind and rain, and once entering this space S, it is difficult to go out of the space S naturally, so it accumulates in the space S. As a result, due to the deposit in the space S, the rainwater retained in the deposit, the snow melting agent, and the like, the score portion corrodes. And if corrosion of a point part progresses, there exists a possibility that a truss structure may be destroyed. In fact, there is an accident where the truss bridge collapses due to corrosion of the point part.

  Further, conventionally, when the critical point portion of the truss structure is corroded, the corroded portion is reinforced with a contact plate, and rust prevention treatment and repainting are performed. Such repair work requires labor and days, and the maintenance cost of the truss structure is high.

  In addition, even if the truss structure is regularly inspected, it cannot be inspected visually by checking the rating part because it is blocked by deposits, and the presence or absence of corrosion cannot be grasped. There was a problem. And it was not practical to perform the removal work of the deposit at every inspection.

  Therefore, in view of the above circumstances, the present invention can protect the grading portion of the truss structure and suppress corrosion, and can easily check the grading portion by visual inspection. It is an object of the present invention to provide a truss rating structure including the truss rating portion protection member.

  In order to solve the above-mentioned problems, the truss rating point protection member according to the present invention is “one or more of the pair of gusset plates that connect the long bar-shaped members that constitute the truss structure and are locked to one gusset plate. A first locking portion; and one or more second locking portions locked to the other gusset plate; and the first locking portion supported by the first locking portion and the second locking portion. And a cover body bridged from above between the second locking portions ”.

  The “long bar-like member” is a term including “slanting material” and “vertical material” constituting the truss structure. The truss grading point protection member of the present invention is not only for a truss structure including both diagonal members and vertical members, but also for a truss structure in which the truss structure is configured only with diagonal members without vertical members. Can be applied. The term “truss score part” in the “truss score part protection member” is equivalent to “score part of the truss structure”.

  The truss rating part protection member having the above structure is attached to the scoring part of the truss structure, that is, the first locking part of the truss rating part protection member is locked to one of the pair of gusset plates, and the second locking When the portion is locked to the other gusset plate, the space between the pair of gusset plates is covered from above by the cover body spanned from above between the first locking portion and the second locking portion. Thereby, in the grading portion of the truss structure body, in a box-shaped space surrounded by adjacent long bar-shaped members and a pair of gusset plates (hereinafter sometimes referred to as “box-shaped space”), dust, earth and sand, It is suppressed that fallen leaves enter and accumulate. As a result, it is possible to reduce the possibility that the scoring portion of the truss structure is corroded due to the deposit, the rainwater retained in the deposit, the snow melting agent, and the like.

  In addition, the visual inspection of the score portion of the truss structure can be easily performed without being disturbed by deposits.

  In the above configuration, the truss rating point protection member according to the present invention may be “the cover body is transparent”.

  The transparent cover body can be formed using a transparent resin plate or tempered glass.

  In the truss rating part protection member having the above configuration, since the cover body is transparent, the rating part can be visually inspected with the truss rating part protection member attached to the truss structure.

  In the above configuration, the truss rating point protection member according to the present invention is “in which the cover body is inclined from the side supported by the first locking portion toward the side supported by the second locking portion. Can be. "

  When the truss rating part protection member having the above configuration is attached to the rating part of the truss structure body, rainwater is high above the cover body having an inclination in the direction from one gusset plate side to the other gusset plate side. Flows from one side to the other. As a result, the risk of rain water flowing down into the box-shaped space of the rating part via the gap between the cover body and the long bar-like member can be reduced, and corrosion of the rating part due to moisture can be reduced. it can.

  In addition to the above-described configuration, the truss rating point protection member according to the present invention may be “further comprises a belt-like rubber body disposed along at least a part of the outer periphery of the cover body”.

  If the cover body is brought into close contact with the long bar-shaped member of the truss structure body, dust, earth and sand, fallen leaves, etc. will enter the box-shaped space of the rating part through the space between the cover body and the long bar-shaped member. On the other hand, there is a risk that the cover body and the long bar-shaped member will rub against each other due to the vibration of the truss structure and the long bar-shaped member may be damaged or the paint may be peeled off. In addition, if the cover body is fixed to the long rod-like member by adhesion or welding, no gap is formed, and friction between the cover body and the long rod-like member is eliminated. The movement of the truss structure that is a structure (a structure that can freely rotate at a fulcrum) may be limited.

  On the other hand, in the present invention, since the belt-shaped rubber body is disposed along at least a part of the outer periphery of the cover body, the size and shape of the cover body are set so that a gap is formed between the long bar-shaped member. However, the gap can be closed with a rubber body. Since the rubber body is rich in elasticity, the gap between the cover body and the long bar-like member can be closed tightly by being elastically deformed and press-fitted into the gap. Further, since the rubber body follows the movement of the long bar-like member due to its elasticity, the movement of the truss structure which is a pin structure is not limited. In addition, even if the rubber body is in close contact with the long bar-like member, there is an advantage that there is no possibility of causing damage such as scratches or peeling of the paint to the long bar-like member due to their contact.

  Next, the truss grading structure according to the present invention is “a truss grading structure in which long bar-shaped members constituting the truss structure are connected by a pair of gusset plates, and one of the pair of gusset plates is the above-mentioned One or more first locking portions locked to the gusset plate, one or more second locking portions locked to the other gusset plate, and the first locking portion and the second locking portion And a truss rating point protection member comprising a cover body bridged from above between the first locking portion and the second locking portion, the cover body being adjacent to the long bar-shaped member And the upper part of the space surrounded by the pair of gusset plates ”.

  This is the configuration of the grading portion of the truss structure body to which the truss grading portion protection member having the above-described configuration is attached, and has the above-described excellent operational effects.

  Moreover, the truss grading structure according to the present invention is the above-described configuration, wherein “the cover body has a shape in which the outer shape in a direction intersecting the gusset plate is along the outer shape of the long bar member facing”. be able to.

  In a general truss structure, steel is used as a long bar-like member, and the steel has an H-shaped cross section perpendicular to the axial direction, an H-shaped cross-sectional shape, an I-shaped cross-sectional shape, and a cross-sectional shape that is co-shaped. There are various shapes such as letter-shaped groove steel, rectangular tube-shaped box steel, and flat plate steel. Therefore, the outer shape of the long bar-shaped member varies depending on the type of steel used.

  In the present invention having the above configuration, the outer shape of the cover body in the direction intersecting the gusset plate, that is, the shape of the cover body on the side facing the long bar-shaped member is a shape along the outer shape of the long bar-shaped member. This makes it possible to reduce the size of the gap formed between the long bar-shaped member and the cover material, further reducing the risk of dust, earth and sand, fallen leaves, etc. entering the box-shaped space of the rating part. be able to.

  As described above, as an effect of the present invention, the scoring part of the truss structure body can be protected and corrosion can be suppressed, and a truss scoring part protecting member that facilitates visual inspection of the scoring part, and the A truss rating structure comprising a truss rating part protection member can be provided.

It is a perspective view of the truss rating point protection member of one embodiment of the present invention. It is a perspective view of a truss rating structure provided with the truss rating part protection member of FIG. It is a longitudinal cross-sectional view of a truss rating structure provided with the truss rating part protection member of FIG. It is a perspective view of a truss rating point protection member provided with the 1st locking part and the 2nd locking part of other embodiments. It is a longitudinal cross-sectional view of a truss rating structure provided with the truss rating part protection member of FIG. It is a top view of a truss rating part protection member provided with a rubber body. It is explanatory drawing of a rubber body. It is a perspective view of a truss rating point protection member provided with a cover body of other embodiments. It is a top view in case the truss rating part protection member of FIG. 8 is provided with a rubber body. It is a perspective view of a truss rating structure at the time of attaching a truss rating part protection member to a truss structure which does not have a vertical material. It is a perspective view explaining the box-shaped space of a rating part.

  Hereinafter, a truss rating part protection member 1 (hereinafter simply referred to as “protection member 1”) and a truss rating structure including the protection member 1 according to an embodiment of the present invention will be described with reference to FIGS. I will explain. The protection member 1 is locked to one or more first locking portions 10 that are locked to one of the gusset plates of the pair of gusset plates that connect the long bar-shaped members that constitute the truss structure, and to the other gusset plate The one or more second locking portions 20 are supported by the first locking portion 10 and the second locking portion 20, and are bridged between the first locking portion 10 and the second locking portion 20 from above. And a cover body 30.

  If it demonstrates in detail, the protection member 1 of this embodiment will be equipped with the 1st latching | locking part 10 and the 2nd latching | locking part 20, respectively, and the 1st latching | locking part 10 and the 2nd latching | locking part 20 will be provided. Are both formed of a metal plate. The first locking portion 10 includes a rectangular flat plate-like placement portion 13 and a pair of leg portions 14 respectively extending downward from a pair of sides of the placement portion 13. One of the pair of leg portions 14 is provided with a through hole portion 15 through which a bolt is inserted. The angle formed between the upper surface of the mounting portion 13 and the leg portion 14 is not a right angle, and the upper surface of the mounting portion 13 is inclined without being horizontal when the extending direction of the leg portion 14 is a vertical direction. It is said that.

  The structure of the 2nd latching | locking part 20 is the same as that of the structure of the 1st latching | locking part 10, and a pair of rectangular flat plate-shaped mounting part 23 and each extended below from a pair of edge | side of the mounting part 23, respectively. A leg portion 24 is provided, and one of the pair of leg portions 24 is provided with a through-hole portion 25 through which a bolt is inserted. And the angle which the upper surface of the mounting part 23 makes with the leg part 24 is the same as the angle which the upper surface of the mounting part 13 of the first locking part 10 makes with the leg part 14. On the other hand, the length from the lower end of the leg portion 24 of the second locking portion 20 to the upper surface of the mounting portion 23 (the height of the second locking portion 20) is the lower end of the leg portion 14 of the first locking portion 10. To the upper surface of the mounting portion 13 (the height of the first locking portion 10).

  The cover body 30 is made of a transparent resin, and has a flat cover body 31 and an end side of the cover body 31 that is supported by the first locking portion 10 (hereinafter referred to as “first side 35”). And a pair of side cover portions 32 each extending downward from an end side (hereinafter referred to as “second side 36”) supported by the second locking portion 20.

  Moreover, in the cover body 30, the shape of the side which connects the 1st edge | side 35 and the 2nd edge | side 36 follows the external shape of the long rod-shaped member which faces when the protection member 1 is attached to the score part of a truss structure. In this embodiment, the intermediate portion is formed in a convex shape protruding outward.

  Further, the cover body 30 is fastened to the first locking portion 10 and the second locking portion 20 by fastening bolts 60 and nuts (not shown). Specifically, the mounting portions 13 and 23 and the cover are placed in a state where the mounting portion 13 of the first locking portion 10 and the mounting portion 23 of the second locking portion 20 are in contact with the bottom surface of the cover body 31. A bolt 60 and a nut are fastened through a hole provided in the main body 31. Accordingly, the cover main body 31 is supported from below by the first locking portion 10 and the second locking portion 20 so as to be mounted on the mounting portions 13 and 23. As described above, the upper surfaces of the placement portions 13 and 23 are inclined at a predetermined angle with respect to the respective leg portions 14 and 24, and the height of the second locking portion 20 is the height of the first locking portion 10. The cover body 31 is larger than the height, and is inclined so as to descend from the side placed on the second locking portion 20 toward the side placed on the first locking portion 10.

  In addition, the fastening position between the cover body 30 and the pair of first locking portions 10 is located inside the cover body 31 by a predetermined distance from the first side 35. Similarly, the fastening position between the cover body 30 and the pair of second locking portions 20 is located inside the cover body 31 by a predetermined distance from the second side 36.

  The protective member 1 configured as described above has the first locking portion 10 locked to one of the pair of gusset plates, and the second locking portion 20 locked to the other gusset plate, so Can be attached to the part. In the present embodiment, as shown in FIGS. 2 and 3, the pair of leg portions 14 of the first locking portion 10 and the pair of leg portions 24 of the second locking portion 20 are respectively sandwiched with gusset plates 55. The gusset plate 55 is positioned in the vicinity of the upper end side. At that time, of the pair of leg portions 14 of the first locking portion 10, the leg portion 14 in which the through-hole portion 15 is formed, and the pair of leg portions 24 of the second locking portion 20 penetrate. The leg portions 24 in which the holes 25 are formed are arranged so as to be outside the gusset plate 55.

  In this state, the first locking portion 10 and the second locking portion 20 are locked to the gusset plate 55 using the bolt 61. Specifically, taking the first locking portion 10 as an example, the bolt 61 is inserted into the through-hole portion 15 from the outside of the gusset plate 55, and the shaft portion of the bolt 61 is interposed between the leg portion 14 and the gusset plate 55. The nut 62 is screwed onto the nut. Then, by projecting the shaft end of the bolt 61 and pressing the gusset plate 55, the gusset plate 55 is clamped by the inner leg portion 14 and the bolt 61, and the first locking portion 10 is locked to the gusset plate 55. The Similarly, the second locking portion 20 is also locked to the other gusset plate 55 using the bolt 61 and the nut 62.

  Thus, the long bar-like member 50 constituting the truss structure is a truss rating structure in which the pair of gusset plates 55 are connected to each other, and the pair of first gusset plates 55 locked to one of the gusset plates 55 The locking portion 10, the pair of second locking portions 20 locked to the other gusset plate 55, and the first locking portion 10 and the first locking portion 10 are supported by the first locking portion 10 and the second locking portion 20. A truss rating structure is formed that includes the protective member 1 including the cover body 30 that is bridged from above between the second locking portions 20. FIG. 2 illustrates the case where the long bar-shaped members 50 constituting the truss structure are the diagonal members 51 and the vertical members 52.

  In the truss rating structure having the above configuration, the cover body 30 covers the upper part of the box-shaped space S surrounded by the adjacent long bar-shaped member 50 and the pair of gusset plates 55. Thereby, it can suppress that a dust, earth and sand, a fallen leaf, etc. enter into the box-shaped space S, and can suppress the possibility that the score part of a truss structure may corrode due to a deposit.

  Moreover, since the cover body 30 is transparent, when checking the truss rating structure according to the present embodiment, the rating part can be visually checked while the protective member 1 is attached.

  Furthermore, in the truss grading structure of the present embodiment, the protective member 1 can be easily removed from the grading portion by releasing the screwing of the bolt 61 and the nut 62. Further, when the protective member 1 is attached to the gusset plate 55, the pressing force by the bolt 61 is used as described above, and it is not necessary to make a hole in the gusset plate 55. If a hole is drilled in the gusset plate 55 and a bolt is inserted through the hole to fix the protective member, the gusset plate 55 is cracked or corroded due to the drilled hole. Such a disadvantage is avoided in the truss rating structure of the present embodiment where there is a risk of a structural defect.

  Further, as described above, in the protection member 1, the side that connects the first side 35 and the second side 36 in the cover body 30 is formed in a convex shape with an intermediate portion protruding outward. The shape is set so that the cross section of the position where the protection member 1 is attached is a shape along the outer shape of the long bar-shaped member 50 having an H shape. That is, in the truss grading structure of the present embodiment, the outer shape of the cover body 30 in the direction intersecting the gusset plate 55 (the shape of the side connecting the first side 35 and the second side 36) is a long bar shape facing each other. The shape follows the outer shape of the member 50. Thereby, it is possible to make the clearance gap formed between the long rod-shaped member 50 and the cover body 30 small, and to suppress dust, earth and sand, fallen leaves, etc. entering the box-shaped space S more effectively. can do.

  Further, in the truss rating structure to which the protective member 1 having the above configuration is attached, a gap corresponding to at least the height of the mounting portion 13 is formed between the upper end side of the gusset plate 55 and the bottom surface of the cover main body 31. In the present embodiment, as shown in FIG. 3, the first locking portion 10 and the second locking portion 20 are gusset plates 55 in a positional relationship in which a gap larger than the height of the mounting portion 13 is formed. Attached to. As a result, the box-shaped space S is not sealed by the cover body 30 and the inner and outer ventilation is ensured, so that the inside of the box-shaped space S can be prevented from becoming an environment susceptible to high humidity corrosion.

  Furthermore, since the cover body 30 of the protection member 1 includes the side cover portion 32, in the truss rating structure of the present embodiment, a gap is formed between the upper end side of the gusset plate 55 and the bottom surface of the cover body 31. Even if it exists, the upper side of the box-shaped space S is covered with the side cover portion 32. Thereby, it can suppress effectively that dust, earth and sand, fallen leaves, etc. enter and accumulate in box-shaped space S through a crevice, and rain water flows into box-shaped space S through a crevice.

  In the truss rating structure of this embodiment, the lower end of the side cover portion 32 is set to be higher than the upper end of the gusset plate 55. Thus, the side cover portion 32 does not hinder ventilation inside and outside the box-shaped space S while sufficiently exerting the action of covering the box-shaped space S with the cover body 30.

  Further, as described above, in the protection member 1, the cover body 30 is inclined so as to descend from the side supported by the second locking portion 20 toward the side supported by the first locking portion 10. In the truss rating structure of this embodiment, rainwater flows down from the higher side of the inclined cover body 30 to the lower side. In addition, in the protective member 1, the fastening positions of the cover body 30, the first locking portion 10, and the second locking portion 20 are located inside the first side 35 and the second side 36, respectively. In the truss rating structure of the present embodiment, the cover main body 31 projects outwardly from the gusset plate 55 in a bowl shape. Thereby, the rainwater flowing down along the inclined cover body 30 is easily dropped to the outside of the gusset plate 55 and the rainwater is prevented from flowing into the box-shaped space S.

  Next, the protection member 2 provided with the 1st latching | locking part 10b and the 2nd latching | locking part 20b of a structure different from the above is demonstrated. Other configurations are the same between the protection member 1 and the protection member 2. As shown in FIG. 4, the first locking portion 10 b of the protection member 2 is a leg having a rectangular flat plate-like placement portion 16 and two pairs of side surfaces extending downward from the outer periphery of the placement portion 16. A slit portion 18 opening downward is formed on each of the pair of side surfaces of the portion 17 and the leg portion 17. Further, in the leg portion 17, a through-hole portion 19 through which a bolt is inserted is formed on one of a pair of side surfaces that are not provided with the slit portion 18.

  Similarly, the second locking portion 20b includes a rectangular flat plate-shaped mounting portion 26, leg portions 27 having two pairs of side surfaces extending downward from the outer periphery of the mounting portion 26, and the leg portions 27. A slit portion 28 opening downward is formed on each of the pair of side surfaces, and a through-hole portion 29 is formed in one of the side surfaces not provided with the slit portion 28. Here, the length of the slit portion 18 of the first locking portion 10b is the same as the length of the slit portion 28 of the second locking portion 20b. On the other hand, the distance between the back end (upper end) of the slit portion 28 in the second locking portion 20b and the upper surface of the placement portion 26 is the back end (upper end) of the slit portion 18 in the first locking portion 10b and the placement portion 16. The distance is longer than the distance from the top surface. Note that the fastening of the cover body 30 to the first locking portion 10b and the second locking portion 20b is the same as that of the protective member 1.

  When attaching the protective member 2 having the above configuration to the rating portion of the truss structure, as shown in FIG. 5, the slit portion 18 of the first locking portion 10b and the slit portion 28 of the second locking portion 20b are Insert each into the gusset plate 55. Then, with the rear ends of the slit portions 18 and 28 in contact with the upper end side of the gusset plate 55, the first locking portion 10b and the second locking portion 20b are used using the bolt 61 and the nut 62 in the same manner as described above. Is locked to the gusset plate 55. If it does in this way, it is not necessary to adjust the height of the attachment position of the 1st latching | locking part 10b with respect to the gusset plate 55, and the 2nd latching | locking part 20b so that the cover body 30 may incline, and attachment work is carried out. Easy. A gap between the upper end side of the pair of gusset plates 55 and the bottom surface of the cover body 31 is equal to the distance between the rear end of the slit portion 18 and the upper surface of the mounting portion 16, and the rear end of the slit portion 28. A gap equal to the distance between the upper surface of the mounting portion 26 and the upper surface of the mounting portion 26 is formed.

  Next, in addition to the above configuration, the protection member 3 further including a belt-like rubber body 40 disposed along at least a part of the outer periphery of the cover body 30 and the truss rating structure including the protection member 3 will be described. To do. As shown in FIG. 6, the protection member 3 is different from the protection members 1 and 2, as shown in FIG. 6, in the form of a belt-shaped rubber disposed along a convex side that connects the first side 35 and the second side 36. The point is that the body 40 is provided.

  As shown in FIG. 7, the rubber body 40 includes a slit 41 that opens in the middle of the thickness direction and extends along the long axis direction. The rubber body 40 can be attached to the cover body 30 so that the side of the cover body 31 is inserted into the slit 41.

  In the truss grading structure including the protective member 3 having the above-described configuration, the size and the outer shape of the cover body 30 are set so that a gap is formed between the long bar-like member and the gap may be closed with the rubber body 40. It becomes possible. Thereby, the risk that the long bar-like member 50 is damaged due to friction with the cover body 30 is avoided by the clearance between the two, and dust, earth and sand enter the box-shaped space S from the gap between the two, and rainwater Can be reduced by the rubber body 40. Further, due to the elasticity of the rubber body 40, the gap between the long bar member 50 and the cover body 30 can be closed tightly without restricting the movement of the truss structure as the pin structure.

  The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements can be made without departing from the scope of the present invention as described below. And design changes are possible.

  For example, in the above, the case where the shape of the two sides connecting the first side 35 and the second side 36 in the cover body 30 is both convex is illustrated, but the shape of the side is a long bar-like member. It becomes various according to the external shape. For example, as shown in FIG. 8, the protective member 4 attached to the grading portion where one side surface of the adjacent long bar-like member is flat is uneven as a side side connecting the first side 35 and the second side 36. And a cover body 30b having a straight side 38 having no shape. Further, in the case of the cover body 30b having such a straight side 38, a belt-like rubber body 40 is also arranged in a straight line as illustrated in FIG.

  Moreover, in the above, the case where the long bar-shaped member 50 constituting the truss structure is the diagonal member 51 and the vertical member 52 is illustrated, but the present invention is not limited to this, and as shown in FIG. It is possible to attach the truss rating part protection member of the present invention to the rating part of the truss structure. Moreover, the truss rating part protection member and truss rating structure of the present invention can be suitably applied to a truss structure in which the rating part is exposed, such as a building or a civil engineering structure, in addition to a truss bridge. it can.

1, 2, 3, 4 Truss point protection member 10, 10b First locking portion 20, 20b Second locking portion 30 Cover body 40 Rubber body 50 Long bar-shaped member 55 Gusset plate S Long bar-shaped member and a pair of gussets Space surrounded by plates (box-shaped space)

Claims (6)

One or more first locking portions locked to one gusset plate out of a pair of gusset plates connecting the long bar-shaped members constituting the truss structure, and one or more first locking portions locked to the other gusset plate Two locking parts;
A truss comprising: a cover body supported by the first locking portion and the second locking portion and spanned from above between the first locking portion and the second locking portion. Grade point protection member. The truss rating point protection member according to claim 1, wherein the cover body is transparent. The said cover body inclines toward the side supported by the said 2nd latching | locking part from the side supported by the said 1st latching | locking part, The Claim 1 or Claim 2 characterized by the above-mentioned. Truss point protection member. The truss rating point protection member according to any one of claims 1 to 3, further comprising a belt-like rubber body disposed along at least a part of the outer periphery of the cover body. . A truss rating structure in which long bar-shaped members constituting the truss structure are connected by a pair of gusset plates,
One or more first locking portions locked to one of the gusset plates, a pair of one or more second locking portions locked to the other gusset plate, and the first A truss rating point protection member provided with a cover body supported from the upper part between the first engaging part and the second engaging part, supported by the engaging part and the second engaging part,
The truss rating structure characterized in that the cover body covers the space surrounded by the adjacent long bar-shaped member and the pair of gusset plates. 6. The truss rating structure according to claim 5, wherein the cover body has an outer shape in a direction intersecting the gusset plate along an outer shape of the long bar member facing the cover body.

Images