JP6970430B2 - Cord-like member and its connecting structure - Google Patents

Description

The present invention relates to a cord-like member and a connecting structure thereof .

For example, there are gaskets, packings, and the like as members that are sandwiched between parts and used. Rubber gaskets and packings are usually used, but other gaskets and packings are also known to be integrated by embedding a wire mesh or the like inside the rubber (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-196909

However, since gaskets and packings generally have a predetermined size and shape, they cannot be cut into free lengths according to the situation of the installation location, for example. .. Therefore, it is necessary to have a cord-shaped member that can be cut into any length and used. In such a cord-shaped member, it is necessary to suppress deformation such as elongation in order to exhibit stable performance. You will need it.

Therefore, the present invention mainly aims to solve the above-mentioned problems.

In order to solve the above problems, the present invention is composed of only a hollow spiral tube in which a strip is formed in a spiral shape and a tubular net member covering the outer circumference of the spiral tube, and contacts between parts. The tubular net member, which is a cord-shaped member sandwiched between the portions and covers the outer periphery of the spiral tube, has an insertion convex shape that is elongated and crushed at the end portion in a state of being pulled out from the end portion of the spiral tube. It is characterized by having a part.

According to the present invention, according to the above configuration, the cord-like member can be cut into a free length and used. For example, by sandwiching it in a contact portion between parts, it is suitable for gaskets, packings and other uses. It will be something that can be used for. At this time, since the cord-like member is composed of only the spiral tube and the tubular mesh member, the tubular mesh member effectively suppresses the free extension of the spiral pitch of the spiral tube, so that the cord-like member is It will be something that can demonstrate stable performance. Further, the tubular net member that covers the outer circumference of the spiral tube has an insertion convex portion at the end, which is elongated and crushed in a state of being pulled out from the end of the spiral tube, so that it is another component. Spiral tubes can be easily added or looped by on-site processing without using such tools.

It is an overall side view which shows the cord-like member which concerns on this embodiment. It is a perspective view which shows the state which the cord-like member of FIG. 1 was bent. It is a perspective view which shows the state which the cord-like member of FIG. 1 is folded back. FIG. 3 is a side view showing a state in which the cord-shaped member of FIG. 1 is installed between parts and a pressing force is applied. It is a perspective view which shows the state which connects the cord-like member (showing the state only a spiral tube) of FIG. 1 by the connecting part (insertion piece). It is a perspective view which shows the state which connects the cord-like member (showing the state only a spiral tube) of FIG. 1 by the connecting part (another net piece). (A) is a perspective view showing a state in which the cord-shaped members of FIG. 1 are connected by a connecting portion (insertion convex portion). (B) is a perspective view which shows the accommodation concave part which receives an insertion convex part and the like. FIG. 3 is a perspective view showing a state in which the cord-shaped member of FIG. 1 is attached to a large heat treatment apparatus or the like. It is sectional drawing which follows the AA line of FIG. It is a perspective view which shows the state which the electric cable is inserted into the inside of the cord-like member of FIG. As a comparative example, it is a side view of a cord-like member composed of a single spiral tube. It is the same side view as FIG. 4 of the cord-like member composed of a spiral tube alone. It is the same perspective view as FIG. 3 of the cord-like member composed of a spiral tube alone. It is a side view which shows the state of the pitch fracture in the cord-like member composed of a spiral tube alone.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 14 are for explaining this embodiment.

<Structure> Hereinafter, the configuration of this embodiment will be described.

For example, a cord-shaped member 1 as shown in FIG. 1 is provided as a member that can be cut into a free length and sandwiched between contact portions between parts for use. However, the use of the cord-shaped member 1 is not limited to the above.

Hereinafter, the cord-shaped member 1 of this embodiment will be described.

(1) The cord-like member 1 is
Spiral tube 2 with a strip formed in a spiral shape,
It is assumed that a tubular net member 3 that covers the outer periphery of the spiral tube 2 is provided.

Here, the cord-shaped member 1 is a flexible long member that can be freely bent (FIG. 2), rolled, rolled, or folded (FIG. 3) in a cord-like shape (or rope shape). That is. The cord-like member 1 is formed to have a substantially constant thickness over the entire length. In this case, the cord-shaped member 1 has a hollow body shape having a hollow portion 4 inside. The hollow portion 4 is secured as an internal space of the spiral tube 2.

The outer diameter of the spiral tube 2 and the inner diameter of the tubular net member 3 are almost the same, or the inner diameter of the tubular net member 3 is slightly larger than the outer diameter of the spiral tube 2 (about several millimeters or less). Set to be large. As a result, the cord-shaped member 1 becomes a multi-layer structure in which the spiral tube 2 and the tubular net member 3 are clearly separated. That is, when the cord-shaped member 1 is not in use, the spiral tube 2 and the tubular net member 3 lightly contact or interfere with each other with almost no clearance in the radial direction or with a slight clearance. It will be arranged on the inner and outer circumferences so that it can be removed.

The spiral tube 2 is a member that becomes the core of the cord-like member 1, and is capable of elastic deformation (expansion / contraction movement, expansion / contraction movement, etc.) in the radial and longitudinal directions, and the cord-like member 1 is bent or wound from a straight state. It allows you to roll, roll, and fold (bend and stretch, etc.). The spiral tube 2 can be manufactured, for example, by winding a strip in a spiral shape. Further, the spiral tube 2 can be manufactured, for example, by cutting the pipe in a spiral shape and stretching it so as to have a required gap (spiral pitch 5).

For the spiral tube 2, the material of the strip, the plate thickness, the plate width, the spiral pitch 5, and the like can be selected according to the purpose and application. The spiral tube 2 can have a uniform wall thickness over the entire length. The surface (inner peripheral surface and outer peripheral surface) of the spiral tube 2 may be smooth, but depending on the purpose and application, fine irregularities and the like can be provided. The basic spiral pitch 5 of the spiral tube 2 is set to be substantially constant over the entire length, and can be set to, for example, a size of about 10% or less of the plate width of the spiral tube 2. In order to keep the spiral pitch 5 in a substantially constant state, the spiral tubes 2 may be connected by wires or the like at predetermined intervals, for example.

The net member 3 is the outer skin of the cord-like member 1, and although it is plastically deformed by itself, it follows the spiral tube 2 while restricting the free extension of the spiral tube 2 by covering the spiral tube 2. Will be transformed. The net member 3 can be selected from a material, a wire diameter, a mesh size, a knitting method, and the like, depending on the purpose and application. At this time, for example, the net member 3 may be knitted. Knitting is a knitting method that has fine stitches and is difficult to stretch. Further, knitting is a knitting method that can secure a stable large number of contacts with respect to the spiral tube 2 because the peaks of the intersections are convex and the arrangement is dense, and the cord-like member 1 is repeatedly pressed. It is suitable for making it able to withstand force 7 (Fig. 4) and the like. However, the method of knitting the net member 3 is not limited to knitting. In this embodiment, the net member 3 has one layer, but structurally, the net member 3 can be provided in two or more layers on the outer periphery of the spiral tube 2.

The cord-shaped member may be, for example, a member in which a tubular net member is simply formed in a multi-layered manner without providing a core inside, or a member in which the net member is simply rolled into a rod shape. By providing the core of the spiral tube 2 inside the tubular net member 3, the number of layers of the tubular net member 3 can be reduced, or the tubular net member 3 can be made into a single layer. Therefore, it is possible to simplify the structure and reduce the weight of the cord-shaped member 1. Further, by providing the core of the spiral tube 2 in the cord-shaped member 1, the cord-shaped member in which the tubular net member is simply multi-layered without providing the core inside, or the net member is simply rolled into a rod shape. Since the hollow portion 4 which is larger and has a more stable shape can be secured as compared with the cord-shaped member or the like, the hollow portion 4 can be positively used.

Further, as described above, by providing the core of the spiral tube 2, the cord-like member 1 can reduce the number of layers of the tubular net member 3 or can be made into a single layer. Therefore, for example, the cylinder By making the multi-layered net members 3 multi-layered, it is possible to suppress and prevent excessive entanglement between the net members 3, and the performance is not deteriorated due to the entanglement of the multi-layered net members 3 by that amount. In addition, the resilience against repeated deformation can be maintained for a long period of time (that is, it becomes difficult to settle), and the performance can be stabilized.

(2) The spiral tube 2 may be formed of a metal strip 12, and the net member 3 may be formed of a wire mesh 13.

Here, the material, plate thickness, plate width, spiral pitch 5, and the like of the metal strip 12 can be appropriately selected according to the purpose and application. Further, the wire mesh 13 can be appropriately selected from a material, a wire diameter, a mesh size, a weaving method, and the like, depending on the purpose and application. At this time, the metal strip 12 and the wire mesh 13 may be made of the same material, or may be made of different materials. As the metal strip 12, for example, a stainless steel plate having high elastic deformability and good corrosion resistance can be preferably used. As the wire mesh 13, for example, iron, copper, tin, other metal materials, or an appropriate combination of these alloys and the like can be used. Further, the wire mesh 13 may be knitted using a plurality of types of materials or metal threads having different wire diameters.

(3) As shown in FIGS. 5 to 7, the spiral tube 2 may be capable of connecting the ends 2a and 2b to each other by the connecting portion 15.

Here, the ends 2a and 2b are both ends 2a and 2b of the same spiral tube 2 (which are looped and abutted against each other), or ends 2a and 2b of different spiral tubes 2 and 2 which are close to each other. Is. When the cord-shaped member 1 is used in a loop shape, the connecting portion 15 may be provided at a plurality of locations, but it is preferable that the connecting portion 15 is used at only one location.

The connecting portion 15 is a medium for connecting the end portion 2a of the spiral tube 2 and the end portion 2b of the spiral tube 2, and if the ends 2a and 2b can be connected to each other, what kind of medium is used? There may be. For example, a short spiral tube (prepared as a separate member) can be used for the connecting portion 15. The connecting portion 15 is preferably as follows.

(4) As shown in FIG. 5, the connecting portion 15 may be an insertion piece 21 that can be inserted into the spiral tube 2.

Here, the connecting portion 15 may be attached between the outer sides of the ends 2a and 2b of the spiral tube 2 or between the outer side and the inner side, but may be inserted between the inner sides of the spiral tubes 2. It is preferable to use the piece 21 because it can be connected while keeping the outer diameter of the cord-like member 1 constant. The insertion piece 21 as the connecting portion 15 connects the ends 2a and 2b of the spiral tube 2 to each other by utilizing resistance due to entanglement with the spiral tube 2 and the tubular net member 3 and frictional force due to contact. Will be done.

Therefore, it is preferable that the insertion piece 21 has an outer diameter that is substantially equal to or slightly smaller than the inner diameter of the spiral tube 2. The insertion piece 21 has a length sufficient to stably maintain the state of being inserted into the hollow portion 4 of the spiral tube 2.

The insert piece 21 may not be deformed, but it is preferable that the insert piece 21 is deformable by elastic deformation, plastic deformation, or the like together with the spiral tube 2. The insert piece 21 may be a tubular body, a rod-shaped body, or the like. As the tubular body or rod-shaped body, for example, a rubber tube or rubber rod made of silicone rubber, neoprene rubber, or the like, a tube made of soft resin, a soft resin rod, or the like can be used. Further, for example, a metal tube member (metal cylinder), a rod-shaped member (metal rod), or the like can be used. Alternatively, the shield tape or shield tube can be used in the shape of a cylinder or a rod. Shielding tapes and shield tubes are adhesive tapes made of metal or metal mesh used to prevent electromagnetic interference.

The short spiral tube described above can also be used as the insert piece 21. The short spiral tube is suitable for use as a connecting portion 15 because it entangles well with the spiral tube 2 when inserted into the hollow portion 4 of the spiral tube 2 constituting the cord-shaped member 1.

The initial shape of the insertion piece 21 may be a straight line, a curved line, or a bent shape. Further, the outer peripheral portion of the insertion piece 21 may be provided with a protrusion or a return portion so as to be hooked on the spiral tube 2 or the tubular net member 3.

(5) As shown in FIGS. 6 and 7, the connecting portion 15 may be a net-like body 31 that can be inserted into the spiral tube 2.

Here, the net-like body 31 can be a wire mesh or a net made of other materials. When the net-like body 31 is inserted into the hollow portion 4 of the spiral tube 2, it comes into contact with the spiral tube 2 and the tubular net member 3 to secure a stable large number of contacts, and thus the connecting portion 15 Can be suitably used as. The net-like body 31 has a length sufficient to stably maintain the state of being inserted into the hollow portion 4 of the spiral tube 2. The shield tape and shield tube described above can also be used as the mesh body 31. The reticulated body 31 may be of any shape, but is preferably as follows.

(6) As shown in FIG. 6, the net-like body 31 may be formed by rolling a net piece 32 different from the tubular net member 3.

Here, as the other net piece 32, a piece of the tubular net member 3 constituting the cord-shaped member 1 may be used, or a completely different net may be used. The material, wire diameter, mesh size, weaving method, and the like of another net piece 32 may be the same as those of the tubular net member 3, or may be different.

The other net piece 32 may be rolled into a cylindrical shape or a rod shape, for example. By rolling it into a cylindrical shape or rolling it into a rod shape, another net piece 32 can be used in the same manner as the above-mentioned insertion piece 21. The other net piece 32 is rounded so as to have a length sufficient to stably keep the state of being inserted into the hollow portion 4 of the spiral tube 2 and to be substantially the same as or slightly thinner than the inner diameter of the spiral tube 2. .. The method of rounding another net piece 32 can be arbitrary. In the center of another rolled net piece 32, for example, in order to make it easier to roll another net piece 32 and to easily insert it into the hollow portion 4 of the spiral tube 2, for example, in a wire shape or a cylindrical shape. You may put a core material or the like.

(7) As shown in FIG. 7, in the net-like body 31, the end portion 3a of the tubular net member 3 covering the outer periphery of the spiral tube 2 is pulled out from the end portion 2a of the spiral tube 2 and crushed into an elongated shape. It may be the insertion convex portion 33.

Here, the state in which the end portion 3a of the tubular net member 3 is pulled out from the end portion 2a of the spiral tube 2 is a state in which the tubular net member 3 is displaced toward one end side of the spiral tube 2 or the spiral tube 2 This is a state in which the end portion 2a of the cylinder is cut to be shorter than the end portion 3a of the tubular net member 3.

Elongating is to deform the end 3a of the tubular net member 3 so that it is approximately the same as or thinner than the inner diameter of the spiral tube 2. For example, it may be crushed as it is. It can be crushed flat and then folded into small pieces, or twisted and crushed into small pieces. The insertion convex portion 33 has a length sufficient to stably maintain the state of being inserted into the hollow portion 4 of the spiral tube 2. It is preferable to set a standard for the length of the insertion convex portion 33 in advance and process the length, thickness, shape, etc. according to the standard at the site in order to secure the bonded state of the connecting portion 15. In the figure, the insertion convex portion 33 is slightly shorter, but the length of the insertion convex portion 33 is not limited to this.

Further, regarding the end portion 2b of the spiral tube 2 on the side where the insertion convex portion 33 is inserted, the end portion 3b of the tubular net member 3 is pulled out and the drawn net member is pulled out in the same manner as described above. By folding the end portion 3b of 3 into the inside of the hollow portion 4 of the spiral tube 2 to form an accommodating recess 34 or the like, the ends 3a and 3b of the net member 3 are in a state of uneven fitting, so that the connecting portion 15 is connected. It becomes possible to further enhance the bonded state. The accommodation recess 34 is preferably set to have substantially the same length as the insertion convex portion 33, but may be longer or shorter than the insertion convex portion 33. Further, the accommodating recess 34 can be similarly provided when the connecting portion 15 is an insertion piece 21 or another net piece 32.

(8) Hereinafter, a specific application example of the cord-shaped member 1 will be described.

FIG. 8 shows a large heat treatment apparatus 41 in which a cord-like member 1 is provided as a gasket, packing, or the like at a contact portion between an end surface of an opening 42 of a main body and a door 43. The cord-shaped member 1 is installed along the opening 42 of the main body in a state where both ends 2a and 2b of the spiral tube 2 are connected by the connecting portion 15 to form a loop. Since the cord-shaped member 1 does not have a sealing property by itself, as shown in FIG. 9, it is supplementarily covered with a sheet-shaped sealing material 45 so that the sealing property can be obtained. Then, for example, by attaching the mounting bracket 46 to the opening 42 of the main body of the heat treatment apparatus 41 and pressing the sealing material 45 with the mounting bracket 46, the cord-like member 1 is fixed via the sealing material 45. There is. However, the method of attaching the cord-shaped member 1 or the like is not limited to the above, and for example, it may be installed inside the end surface of the opening 42 or the groove provided in the door 43 or the like.

The large heat treatment device 41 has a high temperature atmosphere inside, and the door 43 is also thick and heavy. Therefore, the gasket and packing have characteristics that can withstand harsh conditions such as high temperature and a large pressing force 7. However, if the cord-like member 1 of this embodiment (particularly the one using the metal spiral tube 2 and the wire mesh 13) is used, the performance is deteriorated even in a high temperature environment or an environment where a large load acts. It will be possible to use it stably for a long period of time without causing any problems. The cord-shaped member 1 can be provided not only for the large heat treatment apparatus 41 but also for the medium-sized or small heat treatment apparatus 41 and the like.

Further, not limited to the large heat treatment apparatus 41 as described above, the cord-like member 1 in which the spiral tube 2 is formed of the metal strip 12 and the mesh member 3 is formed of the wire mesh 13 has high physical characteristics due to the metal material. It can also be used as a gasket or packing for the door 48 of a facility that handles electromagnetic waves (electromagnetic wave facility 47) because it has the effect of blocking electromagnetic waves. As a result, similarly to the above, it can be used stably for a long period of time, and the effect of blocking electromagnetic waves can be obtained. The cord-shaped member 1 described above can be suitably used for a heat treatment device 41, a door of a facility other than an electromagnetic wave facility, and the like.

Further, the cord-like member 1 in which the spiral tube 2 is formed of the metal strip 12 and the net member 3 is formed of the wire mesh 13 can obtain a relatively large hollow portion 4 and an effect of blocking electromagnetic waves. As shown in FIG. 10, it is possible to use the spiral tube 2 in a different way from the above, such as passing the electric cable 49 inside the hollow portion 4. The usage of the cord-shaped member 1 through which the electric cable 49 is passed can be adopted in various facilities.

<Action> The action of this example will be described below.

The cord-shaped member 1 is a long member having a cord-like flexibility and can be cut to a required length and used freely. As shown in FIG. 4, the cord-shaped member 1 can be used as a gasket, packing, or the like by sandwiching it in a contact portion between parts. Gaskets and packings are used to increase the contact force with respect to the contact portion by generating a repulsive force against the pressing force 7 applied between the parts by utilizing the characteristics of the material itself.

<Effect> According to this embodiment, the following effects can be obtained.

(Effect 1) About the cord-shaped member 1

In this embodiment, the cord-shaped member 1 has a structure in which the outer circumference of the spiral tube 2 is covered with a tubular net member 3. As a result, the spiral tube 2 generates a large repulsive force against the pressing force 7, and the net member 3 increases the number of contacts with the contact portion (with the parts and the spiral tube 2), so that the contact force with respect to the contact portion is further increased. It can be strong.

As described above, the cord-shaped member 1 of this embodiment can secure a large repulsive force and a high contact force with respect to the contact portion by the synergistic effect of the spiral tube 2 and the net member 3, so that a gasket, packing, etc. can be secured. It will be suitable for use as. At this time, the cord-shaped member 1 can be used alone or in combination with another member such as the sealing material 45. Further, the cord-shaped member 1 can be used to enhance the airtightness of the contact portion, the electrical conductivity, and the damper property due to the high contact force with respect to the contact portion. Further, the cord-shaped member 1 can be widely used for applications other than gaskets and packings.

The cord-like member 1 in which the outer circumference of the spiral tube 2 is covered with the tubular net member 3 has a structure in which the tubular net member 3 protects and restrains the outer circumference of the spiral tube 2, so that the net member 3 is the spiral tube 2. In order to suppress the free expansion and contraction of the spiral pitch 5, the spiral pitch 5 does not easily vary, and it can be used while maintaining an accurate outer diameter dimension and an accurate length. Therefore, the cord-shaped member 1 can exhibit stable performance.

On the other hand, for example, when the cord-like member 51 of FIG. 11 composed of the spiral tube 52 alone is used as a comparative example, the spiral tube 52 freely expands and contracts, so that the spiral pitch is not stable. , Difficult to use with accurate outer diameter dimensions and accurate length. And since there is a strong tendency to use a large amount to prevent the occurrence of insufficient length, the amount of the spiral tube 52 used becomes large and wasteful cost is incurred, and the required performance is obtained by using a large amount. There is a risk that it will not be obtained. Therefore, the cord-shaped member 1 having the net member 3 provided on the outer periphery as in this embodiment is advantageous in exhibiting stable performance as compared with the cord-shaped member 51 composed of the spiral tube 52 alone, and is used. It is also advantageous in terms of quantity and cost.

Moreover, the cord-like member 1 in which the outer periphery of the spiral tube 2 is covered with the tubular mesh member 3 is in a state of being installed at the contact portion between the parts by having the mesh member 3 on the outer periphery (for example, required by the pressing force 7). Even in the state of being crushed to some extent), the variation in the density of the spiral tube 2 is reduced (FIG. 4), so that anyone can easily, stably and accurately install the cord-like member 1 without requiring experience or skill. be able to.

Then, the coarseness and density of the installed spiral tube 2 is stabilized over the entire area without variation, so that, for example, as in the case of the cord-shaped member 51 of FIG. 12 composed of the spiral tube 52 alone, the contact portion between the parts is formed. In the installed state, it is possible to prevent the spiral tube 52 from being unevenly distributed. Therefore, as shown in FIG. 12, in the portion where the spiral tube 52 is rough, the height and diameter of the spiral tube 52 are reduced with respect to the pressing force 7, so that the contact force with respect to the contact portion is locally applied. On the contrary, in the portion where the spiral tube 52 is dense, the spiral tube 52 is not sufficiently bent with respect to the pressing force 7, so that the required contact force cannot be obtained at the contact portion. Since it is less likely that a problem such as a problem will occur, it is possible to prevent a serious malfunction from occurring.

Further, the cord-like member 1 in which the outer periphery of the spiral tube 2 is covered with the tubular mesh member 3 has the mesh member 3 on the outer periphery thereof, so that the spiral tube 2 can be formed even at the bent portion as shown in FIGS. 2 and 3. Since the spiral pitch 5a of the spiral tube 2 can be installed without being excessively expanded as compared with the spiral pitch 5 of the straight portion, the spiral height of the spiral tube 2 is stable and the spiral pitch 5a of the spiral tube 2 is applied when the pressing force 7 is applied. Is suppressed from spreading. As a result, a stable number of contacts can be secured even in the bent portion.

On the other hand, for example, in the case of the cord-like member 51 composed of the spiral tube 52 alone, since the spiral tube 52 can be freely deformed, as shown in FIG. 13, the spiral pitch 5c of the spiral tube 52 is set at the bent portion. Since it is installed so as to expand excessively (5c> 5b), the spiral height of the spiral tube 52 varies, and when the pressing force 7 is applied, the spiral pitch 5c of the spiral tube 52 further expands. Become. As a result, it becomes difficult to obtain a good number of contacts in the bent portion. Therefore, the cord-shaped member 1 provided with the net member 3 on the outer periphery is also advantageous when it is installed in the bent portion as compared with the cord-shaped member 51 composed of the spiral tube 2 alone.

Further, the cord-like member 1 in which the outer circumference of the spiral tube 2 is covered with the tubular net member 3 is attached to the spiral tube 2 because no force is directly applied to the spiral tube 2 at the time of attachment even if the attachment fails once. Since pitch destruction is unlikely to occur, it can be reused.

On the other hand, for example, in the case of the cord-like member 51 composed of the spiral tube 52 alone, a force is directly applied to the spiral tube 52 at the time of mounting. Therefore, once the mounting fails, the spiral is as shown in FIG. Since pitch breakage (pitch breakage portion 53) is likely to occur in the tube 52, there is a high possibility that it cannot be reused. Therefore, the cord-shaped member 1 provided with the net member 3 on the outer periphery is advantageous in terms of reuse as compared with the cord-shaped member 51 composed of the spiral tube 2 alone.

(Effect 2) About the material of the cord-shaped member 1

The spiral tube 2 may have, for example, a configuration in which a strip (resin strip) made of resin (such as thermoplastic) is combined with a resin net or wire mesh 13. Further, for example, the spiral tube 2 may have a configuration in which a metal strip 12 and a resin net are combined. However, by combining the spiral tube 2 with the metal strip 12 and the wire mesh 13, the following effects can be obtained.

That is, by forming the spiral tube 2 with the metal strip 12 and the net member 3 with the wire mesh 13, it becomes possible to use it in a wide temperature range from high temperature to low temperature. Further, by using at least the mesh member 3 as the wire mesh 13, good electrical conductivity can be ensured.

When the cord-like member is a medium substance or a hollow body made of only a rubber-based material such as silicone rubber or neoprene rubber, it is suitable for use under high temperature, high humidity, and vacuum. As a result, there are cases where it cannot be used due to secondary problems such as settling and gas generation. On the other hand, the spiral tube 2 is made of a metal strip 12 and the net member 3 is made of a wire mesh 13. In the case of the shape member 1, since such a secondary problem does not occur, restrictions on the usage environment can be removed or reduced (or the shape member 1 can be used even in a harsh environment). Further, the cord-like member 1 provided with the net member 3 on the outer periphery of the spiral tube 2 can secure a longer life than the case of the cord-like member 51 (FIG. 11) composed of the spiral tube 52 alone. It is also advantageous in terms of life.

When the spiral tube 2 is formed of the metal strip 12 and the mesh member 3 is formed of the wire mesh 13, for example, the spring of the cord-like member 1 depends on the selection of the material and thickness of the spiral tube 2. Since the constant can be set relatively freely, it is also advantageous in terms of design.

Further, when the spiral tube 2 is formed of the metal strip 12 and the mesh member 3 is formed of the wire mesh 13, the effect of blocking electromagnetic waves can be obtained. Therefore, for example, it is provided in a facility that handles electromagnetic waves (electromagnetic waves). It can be used for packing of the door 43 (to block). A leaf spring-shaped noise suppression component called a shield finger is generally used for the packing of the door 48 that blocks electromagnetic waves. However, since the door 48 that blocks electromagnetic waves is heavy, the shield finger is a door. Local pressure concentration due to deformation of 48, etc., causes the claws of leaf springs to locally cause metal fatigue, wear out, and break easily, and the shield finger has a problem that its life is relatively short. there were.

On the other hand, when the cord-shaped member 1 of this embodiment is used, the spiral tube 2 made of the metal strip 12 bends the contact portion evenly in all directions with respect to the locally concentrated pressure. Since the pressure can be absorbed by a slight deformation, the consumption becomes slower, and the life can be extended accordingly. Further, even if the spiral tube 2 is damaged, the outer mesh member 3 can prevent the fragments of the spiral tube 2 from falling to the outside. Therefore, the problem of the existing shield finger can be solved.

(Effect 3) About connecting part 15

In the spiral tube 2, the ends 2a and 2b may be connected to each other by the connecting portion 15. Thereby, by connecting the end portions 2a and 2b to each other by the connecting portion 15, the spiral tube 2 can be added or formed into a loop shape. Therefore, it becomes possible to easily use the cord-shaped member 1 by freely cutting and connecting the members 1.

(Effect 4) Insertion piece 21

The connecting portion 15 may be an insertion piece 21 (such as a cylindrical body or a rod-shaped body). As a result, the spiral tube 2 can be easily added or looped by simply inserting the insertion piece 21 from the ends 2a and 2b of the spiral tube 2 into the hollow portion 4. Further, by using the insertion piece 21, the connecting portion 15 is less likely to come off, and the connecting portion formed by the connecting portion 15 can be freely bent.

(Effect 5) About the reticulated body 31

The connecting portion 15 may be a reticulated body 31. As a result, the spiral tube 2 can be easily added or looped by simply inserting the net-like body 31 from the ends 2a and 2b of the spiral tube 2 into the hollow portion 4. Further, by using the reticulated body 31, the connecting portion 15 is less likely to come off, and the connecting portion formed by the connecting portion 15 can be freely bent. Further, by making the net-like body 31 used for the connecting portion 15 the same as the tubular net member 3, the joint of the cord-like member 1 can be made inconspicuous from the outside.

At this time, by making the net-like body 31 of the connecting portion 15 a wire mesh 13, the connecting portion 15 can be used in a wide temperature range, good electrical conductivity can be ensured, and electromagnetic waves are blocked. The effect can be obtained. Therefore, the spiral tube 2 is formed of the metal strip 12, and the net member 3 is suitable for use in combination with the cord-shaped member 1 formed of the wire mesh 13.

(Effect 6) About another net piece 32

The net-like body 31 may be formed by rolling a net piece 32 different from the tubular net member 3. As a result, the spiral tube 2 can be easily added or looped by simply rolling another net piece 32 and inserting it into the spiral tube 2. Further, the connecting portion by the connecting portion 15 can be freely bent by another rounded net piece 32.

(Effect 7) About the insertion convex portion 33

The net-like body 31 may be an insertion convex portion 33 formed by pulling out a tubular net member 3 covering the outer periphery of the spiral tube 2 from the end portion 2a of the spiral tube 2 and crushing it into an elongated shape. As a result, the tubular net member 3 is pulled out from the end portion 2a of the spiral tube 2 and crushed into an elongated shape, and is inserted into the inside of another spiral tube 2 or the like as the insertion convex portion 33 to obtain another component or the like. The spiral tube 2 can be easily added or looped by on-site processing without using. Further, the connecting portion by the connecting portion 15 can be freely bent by connecting with the insertion convex portion 33 crushed into an elongated shape.

Regarding the end portion 2b of the spiral tube 2 into which the insertion convex portion 33 is inserted, the end portion 3b of the tubular net member 3 is pulled out, and the end portion 3b of the pulled out net member 3 is spiraled. It is preferable to form the accommodating recess 34 by folding it inward of the tube 2. As a result, in the end portion 2b of the spiral tube 2, the inserted insertion convex portion 33 and the folded net member 3 (accommodation concave portion 34) are in an unevenly fitted state and are just entangled with each other, so that the bondability is improved. At the same time, it is securely connected electrically and is in good condition. The accommodating recess 34 may be provided when the connecting portion 15 is an insertion piece 21 or another net piece 32, and in these cases as well, the bondability and the like can be improved.

(Effect 8) Application example of cord-shaped member 1

For example, the cord-shaped member 1 using the metal strip 12 or the wire mesh 13 may be used as a gasket, packing, or the like for the contact portion between the opening 42 of the main body and the door 43 in the heat treatment apparatus 41. As a result, it is possible to obtain a gasket or packing that can be used stably for a long period of time without causing deterioration in performance even in an environment where a high temperature environment or a large load is applied.

Further, for example, the cord-shaped member 1 using the metal strip 12 or the wire mesh 13 may be used as a gasket or packing for the door 48 of the electromagnetic wave facility 47. As a result, as in the case of the heat treatment apparatus 41, it can be used stably for a long period of time, and the effect of blocking electromagnetic waves can be obtained.

Further, for example, the cord-shaped member 1 using the metal strip 12 or the wire mesh 13 may be used so that the electric cable 49 is passed through the hollow portion 4 of the spiral tube 2. As a result, the electric cable 49 is physically, electrically, and magnetically protected to prevent leakage of the magnetic field to the periphery of the electric cable 49, thereby overlapping with the surrounding electric cable 49 and to peripheral electronic devices. It is possible to prevent adverse effects due to unnecessary radiation.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are merely examples of the present invention. Therefore, the present invention is not limited only to the configuration of the embodiment, and it is needless to say that the present invention is included in the present invention even if there is a design change or the like within a range not deviating from the gist of the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is needless to say that possible combinations of these configurations are included even if there is no particular description. Further, when a plurality of examples and modifications are disclosed as those of the present invention in the embodiment, possible combinations of configurations straddling these are included even if there is no particular description. Of course. Further, it goes without saying that the configuration depicted in the drawings is included even if there is no particular description. Furthermore, when there is a term such as "etc.", it is used to mean that the equivalent is included. In addition, when there are terms such as "almost", "about", and "degree", they are used to mean that they include those with a range and accuracy that are generally accepted.

1 Cord-like member 2 Spiral tube 3 Net member 12 Metal strip 13 Wire mesh 15 Connecting part 21 Insertion piece 31 Net-like body 32 Another net piece 33 Insertion convex part

Claims (7)

It is a cord- like member that is composed only of a hollow spiral tube in which a strip is formed in a spiral shape and a tubular net member that covers the outer circumference of the spiral tube, and is sandwiched between contact portions between parts.
The tubular net member covering the outer periphery of the spiral tube is characterized by having an insertion convex portion having an elongated and crushed shape at an end portion in a state of being pulled out from the end portion of the spiral tube. Cord-shaped member. It is a cord-like member that is composed only of a hollow spiral tube in which a strip is formed in a spiral shape and a tubular net member that covers the outer circumference of the spiral tube, and is sandwiched between contact portions between parts .
The tubular net member that covers the outer periphery of the spiral tube has an insertion recess at the end thereof, which is in a state of being pulled out from the end of the spiral tube and folded into the inside of the spiral tube. A cord-like member characterized by. The cord-like member according to claim 2.
The tubular net member covering the outer periphery of the spiral tube is characterized by having an insertion convex portion having an elongated and crushed shape at an end portion in a state of being pulled out from the end portion of the spiral tube. Cord-shaped member . The cord-like member according to any one of claims 1 to 3.
A cord-like member characterized in that the spiral tube is formed of a metal strip and the mesh member is formed of a wire mesh. A cord-like structure composed of only a hollow spiral tube in which a strip is formed in a spiral shape and a tubular net member that covers the outer circumference of the spiral tube, and the cord-like members sandwiched between the contact portions between the parts are connected. It is a connecting structure of members,
The ends of the spiral tube are close to each other,
The adjacent ends are connected by a connecting part,
The connecting portion is composed of a member separate from the cord-shaped member, and is attached so as to straddle between the adjacent ends thereof.
A connecting structure of a cord-shaped member, wherein the connecting portion is a tubular or rod-shaped insert piece that can be inserted into the hollow spiral tube. A cord-like structure composed of only a hollow spiral tube in which a strip is formed in a spiral shape and a tubular net member that covers the outer circumference of the spiral tube, and the cord-like members sandwiched between the contact portions between the parts are connected. It is a connecting structure of members,
The ends of the spiral tube are close to each other,
The adjacent ends are connected by a connecting part,
The connecting portion is composed of a member separate from the cord-shaped member, and is attached so as to straddle between the adjacent ends thereof.
The connecting portion is a reticulated body that can be inserted into the hollow spiral tube.
The net-like body is characterized in that a net piece different from the tubular net member is rolled into a tubular shape or a rod shape and has a large number of contacts in contact with the spiral tube or the net member. Connection structure of shaped members. A cord-like structure composed of only a hollow spiral tube in which a strip is formed in a spiral shape and a tubular net member that covers the outer circumference of the spiral tube, and the cord-like members sandwiched between the contact portions between the parts are connected. It is a connecting structure of members,
The ends of the spiral tube are close to each other,
The tubular net member that covers the outer circumference of one of the adjacent ends is an insertion convex portion that is elongated and crushed in a state of being pulled out from one of the ends.
The insertion convex portion is a connecting structure of a cord-like member, which is inserted into the inside of the other end portion of the spiral tube.

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