KR102054136B1 - Transmission line protection device having no joint - Google Patents

Abstract

The present invention provides a flexible pod bundle having a hollow for accommodating a transmission line and having flexible pods made of PVC material bonded in parallel to each other; And a flexible upper sheet and a lower sheet coupled to each other to form a receiving space for accommodating the flexible pod bundle, and a flexible sleeve made of a Teflon material on the outermost layers of the upper sheet and the lower sheet. Provide articulated protection for the joint.

Description

Articulated protection device for transmission line {TRANSMISSION LINE PROTECTION DEVICE HAVING NO JOINT}

The present invention relates to a transmission line protection device for protecting a transmission line, such as a cable, air hose, and more particularly relates to a joint protection device for a transmission line that can be repeated bending and unfolding without a joint.

Transmission lines such as cables and air hoses are used to supply energy or transmit signals to various industrial machines such as semiconductor equipment, clean room equipment, and robots, and protection devices for transmission lines are also used to safely protect the transmission lines without twisting.

Conventional transmission line protection devices have been manufactured in such a way that unit blocks are connected in series. This transmission line protection device is an articulated protection device (sometimes called a cable bayer) that joints the unit blocks to be connected, and is bent or extended around the joints. However, since the articulated protection device generates dust due to friction between the unit blocks occurring at the joint, there is a problem that cannot be used in a clean room environment. Therefore, the joint protection device for a transmission line is used in a place where dust generation should be suppressed such as a clean room environment.

The joint protection device for a transmission line is provided in a form in which upper and lower sheets having flexibility are bonded to each other, and a plurality of receiving spaces are formed between the upper sheet and the lower sheet to accommodate the transmission line. At this time, the outermost surface of the upper and lower sheets is provided with a Teflon material, because the Teflon hardly generates dust even after repeated bending and unfolding. Such a jointless protection device for a transmission line is disclosed in Korean Patent Registration No. 10-1192804 (transmission line sleeve).

In the joint protection device for a transmission line disclosed in the above Korean Patent Registration, accommodation spaces for accommodating the transmission line are listed only in a line, in which case the number of transmission lines that can be used is limited. Therefore, as disclosed in Korean Patent Registration No. 10-1739706 (cable protection device), a joint-free protection device for a transmission line may be used in which a plurality of layers of the upper and lower sheets are laminated to form a plurality of accommodation spaces. .

Korea Patent Registration No. 10-1192804 (Sleeving Line for Transmission Line) Korea Patent Registration No. 10-1739706 (Cable protection device)

In a joint protection device for a transmission line, it is preferable that only one or two transmission lines are inserted into each of the accommodation spaces. When three or more transmission lines are inserted into one accommodation space, twisting of the transmission lines occurs in one accommodation space. Because. However, in Korean Patent Registration No. 10-1192804, there is a problem that the number of transmission lines that can be accommodated is limited because the accommodation spaces are arranged in a line only horizontally.

On the other hand, in Korean Patent Registration No. 10-1739706, a plurality of transmission lines may be used than in Korean Patent Registration No. 10-1192804 because columns of horizontally arranged accommodation spaces are provided in several layers. However, the following problem occurs in Korean Patent No. 10-1739706.

First, according to Korean Patent No. 10-1739706, the upper and lower sheets are laminated in several layers. Then, since expensive Teflon used as a material of the outermost surface of the upper and lower sheets must be used a lot, the joints for the transmission line The manufacturing cost of the protective device is very expensive.

In addition, according to Korean Patent Registration No. 10-1739706, the two neighboring layers up and down are simply laminated, but not bonded, so that bending and unfolding are repeated. First, dust is generated due to friction between the two layers. Problem occurs, and secondly, the upper two layers are displaced in the horizontal direction, and thus a problem arises in that the original installation position cannot be maintained as it is.

Accordingly, the present invention is to provide a joint protection device for a transmission line that can be used in a large number of transmission lines, can be manufactured at a low price, minimize the generation of dust, and can maintain the original installation position.

The present invention provides a flexible pod bundle having a hollow for accommodating a transmission line and having flexible pods made of PVC material bonded in parallel to each other; And a flexible upper sheet and a lower sheet coupled to each other to form a receiving space for accommodating the flexible pod bundle, and a flexible sleeve made of a Teflon material on the outermost layers of the upper sheet and the lower sheet. Provide articulated protection for the joint.

The flexible pod bundle is composed of a plurality of pod layers stacked in the vertical direction, and each pod layer is composed of pods which are in close contact with the transverse direction.

The flexible sleeve is provided with one accommodation space or a plurality of accommodation spaces arranged in the transverse direction.

The hollow of some of the pods of the flexible pod bundle may be inserted with a chain provided to have a bending limiting function and a deflection preventing function.

The flexible sleeve may include insertion spaces provided at both ends of the receiving space in the transverse direction, in which case the chain may be inserted into the insertion space.

According to the present invention, even if the bending and spreading are repeated, there is no problem of dust scattering and polluting the clean room environment.

In addition, according to the present invention, repeated bending and unfolding do not cause a problem such as the position of the pods out of position, and even if the position of the lyrics pods out of position does not lead to a problem that the flexible sleeve is caught in the surrounding structure.

In addition, the joint protection device 100 for a transmission line according to the present invention can be manufactured at a very low cost.

1 is a side view showing a joint protection device for a transmission line according to the present invention.
FIG. 2 is a partial perspective view illustrating a joint protection device for a transmission line illustrated in FIG. 1.
3 is a partial perspective view showing a modification of the joint protection device for a transmission line shown in FIG.

Hereinafter, preferred embodiments of the joint protection device for a transmission line according to the present invention will be described in detail with reference to the accompanying drawings. The terms or words used below should not be construed as being limited to ordinary or dictionary meanings, and the inventors can properly define the concept of terms in order to explain their invention in the best way. It should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention.

The articulation protection device 100 for a transmission line according to the present invention is installed in various industrial machines such as semiconductor equipment, clean room equipment, robots, etc., and is used as one end and a mobile end 104 used as the fixed end 102. Has the opposite end. The fixed end 102 is fixed to the fixed part of the industrial machine, the mobile end 104 is fixed to the moving part of the industrial machine. When the moving part of the industrial machine reciprocates, the moving end 104 also performs the reciprocating motion with the moving part, while the articulation protection device 100 for the above transmission line has no joints at all due to its flexibility. As shown in FIG. 1, bending and unfolding are repeated.

The joint protection device 100 for the transmission line includes a flexible pod bundle 110 and a flexible sleeve 130 as shown in FIG. 2.

The flexible pod bundle 110 is a plurality of flexible pods 112, 114, 116 bonded in a parallel posture to each other. Each pod 112, 114, 116 has a hollow 120 and is made of PVC.

The flexible pod bundle 110 may include a plurality of pod layers stacked in the vertical direction so as to accommodate as many transmission lines 10 as possible while having a relatively narrow width. 2 illustrates a flexible pod bundle 110 comprising three pod layers.

At this time, in each pod layer, the pods 112, 114, and 116 are adhered to each other while being closely aligned in the transverse direction. In FIG. 2, four pods 112 on the first floor, three pods 114 on the second floor, and four pods 116 on the third floor are arranged in a lateral direction. And each of the upper pods (e.g., two-layer pods 114) with both pods (e.g., two pods 112 close to each other on the first floor) with It is glued to be in close contact.

Although the hollow 120 of each pod 112, 114, 116 is provided to accommodate the transmission line 10 of a cable, an air hose, etc., in reality, some of the hollows 120 may be chained (not shown). Is used to accommodate The chain has a bending limiting function and a deflection prevention function, which is disclosed in Korean Patent No. 10-1739706 (cable protection device), which was previously disclosed in the prior art document, and the applicant's Patent No. 10-1249286 ( Assembly support module of sleeve for transmission line), Patent No. 10-1216118 (support module of sleeve for transmission line), Publication No. 10-2018-1304 (Articulated support module of sleeve for transmission line), registration It is also disclosed in Patent No. 10-1100676 (support module of the sleeve for the transmission line) and the like, a detailed description of the chain is omitted here.

The above chain is typically used in two or more cases, in which case the chain is a predetermined two pods (e.g., two pods 112 at the left and right ends of the first floor, or two pods 114 at the left and right ends of the second floor, or three layers of The left and right ends of the two pods 116, etc.] may prevent sagging and limit bending of the articulation protection device 100 for a transmission line. Therefore, as shown in FIG. 2, if the flexible pod bundle 110 includes a total of 11 pods 112, 114, and 116, up to nine transmission lines 10 may be accommodated in the flexible pod bundle 110. Can be. Meanwhile, in FIG. 2, only one first-layer transmission line 12, two-layer transmission line 14, and three-layer transmission line 16 are shown.

The flexible sleeve 130 includes a flexible topsheet 130a and a flexible bottomsheet 130b. The left and right ends of the upper sheet 130a are attached to the left and right ends of the lower sheet 130b, respectively. Accordingly, one receiving space 140 is formed between the upper sheet 130a and the lower sheet 130b as shown in FIG. 2, and the flexible pod bundle 110 is accommodated in the receiving space 140.

The outermost layer 132a of the upper sheet 130a and the outermost layer 132b of the lower sheet 130b are made of Teflon, even though the articulation protection device 100 for a transmission line is repeatedly bent and unfolded. This is to minimize dust generation.

In addition, the upper sheet 130a includes an urethane material inner layer 134a provided on the inner surface of the outermost layer 132a, and the lower sheet 130b also includes an urethane material provided on the inner surface of the outermost layer 132b. Layer 134b, to facilitate attachment between the left and right ends of the topsheet 130a and the left and right ends of the bottomsheet 130b. In general, the adhesion between two sheets is performed by thermocompression. Since Teflon has a high melting point, it is difficult to directly attach the upper outer layers 132a and 132b by thermocompression, and thus, urethane has a very low melting point compared to Teflon. The inner layers 134a and 134b are made of materials to facilitate attachment between the upper and lower sheets 130a and 130b.

The articulation protection device 100 for a transmission line as described above has various advantages as compared with the related art.

Conventionally, as disclosed in Korean Patent Registration No. 10-1739706 (cable protection device), a sleeve made of Teflon was laminated in order to put the transmission line 10 in several layers. In this case, it is almost impossible to attach the Teflon to each layer. Sleeves are simply in close contact. Accordingly, in the conventional bending and unfolding process, dust is generated due to friction between the sleeves of each layer, and the dust is scattered to the surroundings, thereby contaminating the clean room environment.

On the other hand, in the present invention, the flexible pod bundle 110 to which the pods 112, 114 and 116 made of PVC are bonded is used to put the transmission line 10 in several layers, and the flexible pod bundle 110 is used as the flexible sleeve. 130 is wrapping. In this case, even if dust is generated in the flexible pod bundle 110 during repeated bending and unfolding, the dust is retained in the receiving space 140 of the flexible sleeve 130 and does not scatter outside of the flexible sleeve 130. . In addition, the outermost layers 132a and 132b of the flexible sleeve 130 exposed to the clean room environment are made of Teflon material which hardly generates dust even when repeatedly bent and unfolded, and while bending and unfolding are performed. Since it is not accompanied by friction, no dust is generated in the outermost layers 132a and 132b of the flexible sleeve 130. Therefore, in the present invention, there is no problem of dust scattering and polluting the clean room environment.

In addition, conventionally, since the sleeves of each layer are simply in close contact as described above, the two neighboring layers slide sideways with respect to each other during repeated bending and unfolding, that is, the lateral position deviation phenomenon Occurs. The articulated protection device is often installed in a narrow space. If the above lateral positional deviation occurs, the sleeve may be caught in the surrounding structure during repeated bending and unfolding.

However, in the present invention, since the pods 112, 114, and 114 constituting the flexible pod bundle 110 are bonded to each other, even if bending and unfolding are repeated, the positional deviation of the pods 112, 114, and 116 does not occur. In addition, even when the position pods 112, 114, and 116 are out of position, the detached pods are still included in the receiving space 120 of the flexible sleeve 130. Therefore, in the present invention, the problem that the flexible sleeve 130 is caught on the surrounding structure does not occur in the process of repeated bending and unfolding.

In addition, conventionally, since the sleeves are made of expensive Teflon material in each layer is very expensive manufacturing. However, in the present invention, pods 112, 114, and 116 made of PVC (price of 1/20 to 1/10 of Teflon) are disposed in each layer, which is very inexpensive compared to Teflon, and Teflon is disposed only. Since it is used only for the flexible sleeve 130 that wraps the flexible pod bundle 110, the manufacturing cost of the articulated protection device 100 is much cheaper than in the prior art.

Meanwhile, the foregoing has described that some of the pods 112, 114, and 116 constituting the flexible pod bundle 110 are used for inserting a chain (not shown). Alternatively, the insertion space 142 for inserting the chain (not shown) may be separately provided in the flexible sleeve 130. In this case, as shown in FIG. 3, two additional attachment points between the upper sheet 130a and the lower sheet 130b are added to create three spaces between the upper and lower sheets 130a and 130b, and then the center space is flexible. It may be used as the receiving space 140 of the pod bundle 110, and the two spaces on both sides may be used as the insertion space 142 for inserting the chain.

In addition, FIG. 2 shows that the flexible sleeve 130 has only one accommodation space 140 for accommodating the flexible pod bundle 110. Alternatively, the flexible sleeve 130 may have a plurality of receiving spaces 140 arranged and partitioned in the transverse direction.

When a plurality of accommodation spaces 140 are provided, the chain may be inserted into some pods of the flexible pod bundle 110 accommodated in each accommodation space 140. For example, if there are two receiving spaces 140, the chain is inserted into two pods of the flexible pod bundle 110 in one receiving space 140 and two pods of the flexible pod bundle 110 in the other receiving space 140. It is an expression.

When a plurality of accommodation spaces 140 are provided, the chain may be inserted into the insertion space 142 provided in the flexible sleeve 130 to be located between the plurality of accommodation spaces 140 and the outermost. For example, if there are two accommodation spaces 140, one insertion space 142 is provided on the left side of the left accommodation space 140, and one insertion space 142 is provided on the right side of the accommodation space 140 on the right side. One insertion space 142 is provided between the spaces 140, and the chain is inserted into the three insertion spaces 142.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Various modifications and variations may be made within the scope of the claims to be described, and the above-described embodiments may be variously combined.

10: transmission line 12: 1st floor transmission line
14: 2nd floor transmission line 16: 3rd floor transmission line
100: joint protection device for transmission line
102: fixed end 104: mobile end
110: bundle of flexible pods 112: first floor pod
114: second floor pod 116: third floor pod
120: hollow 130: flexible sleeve
130a: upper sheet 130b: lower sheet
132a, 132b: outermost layer 134a, 134b: inner layer
140: accommodation space 142: insertion space

Claims (5)

Joint having a fixed end fixed to the fixed part of the industrial machine and a moving end fixed to the moving part of the industrial machine, the articulated joint for repeating bending and unfolding when the moving part reciprocates while driving the mobile end In the protective device,
A flexible pod bundle having a hollow for accommodating a transmission line, the flexible pods formed in a PVC material bonded in parallel to each other, and repeating the bending and unfolding with the fixed end and the mobile end at both ends; And
A flexible top sheet and a bottom sheet coupled to each other to form a receiving space for accommodating the flexible pod bundle, wherein the outermost layers of the top sheet and the bottom sheet are made of Teflon, and the fixed end and the mobile end are both ends. And a flexible sleeve for repeating the bending and unfolding as described above. The method of claim 1,
The flexible pod bundle is composed of a plurality of pod layers stacked in the vertical direction, each pod layer is a joint protection device for a transmission line consisting of pods in close contact with the transverse direction. The method of claim 2,
The flexible sleeve is provided with one receiving space, or a joint protection device for a transmission line is provided with a plurality of receiving spaces arranged in the transverse direction. The method of claim 3,
And a chain arranged to have a bending limiting function and a deflection preventing function in a hollow of some of the pods of the flexible pod bundle. The method of claim 3,
The flexible sleeve includes an insertion space provided at both ends of the receiving space in the transverse direction, the joint space protection device for a transmission line is inserted into the insertion space is provided with a bending limiting function and a deflection prevention function.

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