Compression position indication seal, compression position indication seal set and compression sleeve with compression position indication seal

Abstract

To provide a compression position indication seal that makes an indication of a compression position easier to see by being retrofitted on a circumferential side surface of a compression sleeve.SOLUTION: A compression position indication seal 1 is a seal adhered to a circumferential side face of a compression sleeve 20 to indicate a compression position by a hydraulic compression tool. The compression position indication seal 1 comprises a seal body 2 having a rectangular planar shape, and a pattern 3 printed on the seal body 2 to indicate the compression position by the hydraulic compression tool.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a compression position indicator sticker, a compression position indicator sticker set, and a compression sleeve with a compression position indicator sticker, which are attached to the surface of a compression sleeve used to connect electric wires to make the indication of the compression position easier to see. [Background technology]

[0002] A procedure for connecting electric wires using a conventional compression sleeve will be described with reference to FIGS. Fig. 7 is a perspective view of a conventional compression sleeve, Fig. 8A is an axial cross-sectional view of the conventional compression sleeve, Fig. 8B is a cross-sectional view of the conventional compression sleeve with an electric wire (stranded wire) inserted therein, and Fig. 8C is a cross-sectional view of the compression sleeve with the electric wire (stranded wire) inserted therein compressed and integrated. Generally, the compression sleeve 20' (conventional product) is made of a conductive metal material such as aluminum or copper, and has a sleeve body 21', which is a cylindrical body having a hollow portion 22, on the peripheral surface of which a compression position indication line 26a' for a hand scissors-type compression tool and a compression position indication line 26b' for a hydraulic compression tool are engraved, embossed, or printed. Furthermore, the compression sleeve 20' (conventional product) is provided at its axial center with a pair of outlet holes 25' for discharging the compound filled in the hollow portion 22 of the sleeve body 21'. This compound is a gel-like insulating oil that is filled into the compression sleeve 20' to prevent oxidation and ensure hydrophobicity at the joint between the electric wire and the compression sleeve.

[0003] To connect electric wires using a conventional compression sleeve 20' as shown in Figure 7, as shown in Figures 8A and 8B, an electric wire 31 (stranded wire) from which the insulating outer sheath 32 has been stripped is inserted into the hollow portion 22 from each of the axial ends (one end 21a', the other end 21b') of the sleeve body 21'. Thereafter, by using a hand scissors type or hydraulic compression tool (not shown) to compress the position where the compression position indicator line 26a' (hand scissors type) or compression position indicator line 26b' (hydraulic type) shown in FIG. 7 is engraved (see compression position 30 in FIG. 8B), the compression sleeve 20 and the electric wire 31 are integrated and connected (see FIG. 8C).

[0004] FIG. 9 is an image showing the compression of the compression sleeve using a pressure compression tool, and FIG. 10 is an enlarged image of the compression sleeve in FIG. As shown in the image of FIG. 9, the hydraulic compression tool 40 connected to the indirect hot-line tool 41 is at least 50 cm away from the head position of the worker 42 . Therefore, when compressing the compression sleeve 20' using the indirect live-line tool 41 and the hydraulic compression tool 40, there was a problem that it was difficult to visually confirm the compression position indication line 26b' engraved on the peripheral side surface of the compression sleeve 20' (see Figures 9 and 10). As a prior application for addressing the above-mentioned problems, for example, Patent Document 1 shown below is disclosed.

[0005] Patent Document 1 discloses an invention entitled "Compression sleeve, method for connecting an electric wire to a compression sleeve, and connection structure for connecting an electric wire to a compression sleeve," which relates to a compression sleeve used for connecting electric wires, a method for connecting an electric wire to a compression sleeve, and a connection structure for connecting an electric wire to a compression sleeve. Paragraph

[0029] of the specification of Patent Document 1 states that "the central non-compressed portion mark 3, the partition mark 9 and the end non-compressed portion mark 5 can be formed, for example, by coloring or printing on other parts (e.g., metallic color)." Therefore, taking into consideration the above description of Patent Document 1, if the central non-compressed portion mark (3), the division mark (9), and the end non-compressed portion mark (5) displayed on the circumferential side of the compression sleeve are colored metallically, the compression position displayed on the circumferential side of the compression sleeve can be made easier to see during compression work using an indirect live-line tool 41 and a hydraulic compression tool 40 as shown in Figure 9. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-7067 Summary of the Invention [Problem to be solved by the invention]

[0007] When referring to the technology disclosed in Patent Document 1, it is sufficient to color a mark indicating the compression position when manufacturing the compression sleeve, but if the mark is not colored during manufacturing, the mark indicating the compression position will still be difficult to see. In this case, the problems described above with reference to FIGS. 9 and 10 remain unsolved.

[0008] The present invention has been made in response to such conventional circumstances, and its purpose is to provide a compression position indicator sticker, a compression position indicator sticker set, and a compression sleeve with a compression position indicator sticker that can be retrofitted to the peripheral side of a compression sleeve to make the compression position indicator easier to see. [Means for solving the problem]

[0009] The first invention for solving the above problem is a compression position indication sticker that is affixed to the peripheral side of a compression sleeve to indicate the position of compression by a hydraulic compression tool, and is characterized by having a seal body that has a rectangular planar shape and a pattern printed on this seal body that indicates the position of compression by the hydraulic compression tool. In the first aspect of the invention having the above configuration, the pattern printed on the seal body has the effect of clearly indicating the position of the compression sleeve compressed by the hydraulic compression tool. The seal body also functions to add the pattern onto the peripheral surface of the compression sleeve afterwards. Therefore, according to the first invention, when the compression position indication pre-installed on the circumferential surface of the compression sleeve is thin or thin and therefore difficult to see from a distance, the compression position can be changed to an indication (pattern) that is easy to see by attaching a patterned sticker to the circumferential surface of the compression sleeve.

[0010] A second invention is the above-mentioned first invention, characterized in that the seal body is made of a transparent resin film. According to the second invention of the above configuration, by using a transparent resin film as the seal body, the compression position indication pre-marked on the compression sleeve can be used as a marker when attaching the seal body to the peripheral side surface of the compression sleeve.

[0011] The compression position indicator sticker set of the third invention is characterized in that the compression sleeve to which the sticker body is attached has a specification marking indicated using a lattice frame or frame on its peripheral side and in the center in the axial direction, and is composed of a pair of compression position indicator stickers of the first or second invention that are affixed respectively near one end and the other end of the compression sleeve based on this specification marking. According to the third invention having the above configuration, the compression position indication sticker attached to the peripheral side of the compression sleeve is made up of two separate stickers (= a pair of compression position indication stickers), which has the effect of reducing the risk of misalignment of the sticker body's attachment position compared to when the compression position indication sticker is made up of a single sticker. In addition, by using the specification markings as a reference when attaching each of the pair of compression position indication stickers, the risk of misalignment of the sticker body's attachment position also decreases.

[0012] The fourth invention is the third invention described above, characterized in that both compression position indication stickers (a pair of compression position indication stickers) have marker lines printed along the edge located on the specification indication side. According to the fourth invention of the above configuration, the seal body is provided with marker lines, which has the effect of reducing the risk of the seal body being misaligned when a pair of compression position indicator stickers are affixed to the peripheral side of the compression sleeve along the frame lines that constitute the specification display.

[0013] The fifth invention is a compression sleeve with a compression position indication seal, characterized by comprising the compression position indication seal set of the third invention and a compression sleeve having a specification indication indicated on the side and in the center in the axial direction using a lattice frame or frame. The fifth invention having the above configuration specifies the compression sleeve having the compression position indication sticker set of the third invention affixed thereto as an invention of a product, and its action is the same as that of the third invention. [Effects of the Invention]

[0014] According to the first invention, the compression position display sticker, a sticker (compression position display sticker) printed with a pattern indicating the compression position of the hydraulic compression tool can be attached (pasted) onto the circumferential surface of the compression sleeve, making the compression position displayed on the circumferential surface of the compression sleeve easier to see. In this case, for example, when compressing the compression sleeve using a hydraulic compression tool connected to an indirect live-line tool, that is, when compressing the compression sleeve using the hydraulic compression tool at a position more than 50 cm away from the worker's hands, it becomes easy to accurately compress the desired position using the hydraulic compression tool. As a result, the compression sleeve can be used to more reliably and efficiently connect the wires together. Furthermore, according to the first invention, a compression sleeve whose compression position indicator (line) displayed on its peripheral side is thin and difficult to see from a distance can be used as a compression sleeve whose compression position indicator (pattern) is easy to see by simply attaching (sticking) a compression position indicator sticker. Therefore, by adding the first invention to existing compression sleeves whose compression position indicators (lines) are thin and difficult to see from a distance, it is possible to improve the workability when connecting electric wires using a compression sleeve to which the first invention has been added.

[0015] According to the second invention, since the seal body is transparent, the compression position indication seal can be efficiently and accurately affixed to the desired position by utilizing the compression indication position (line) pre-marked on the circumferential surface of the compression sleeve. Therefore, according to the third invention, it is possible to provide a highly convenient compression position indicating sticker.

[0016] According to the third and fifth inventions, when attaching the seal set of the third invention to the peripheral side surface of the compression sleeve, it is possible to preferably prevent errors in the attachment position or misalignment of the attachment position due to human error. In this case, when performing compression work using a compression sleeve, the risk of poor connection of the electrical wires being caused by compressing a position other than the intended position due to incorrect or misaligned placement of the compression position indicator sticker can be reduced. Therefore, according to the third invention, it is possible to provide a high-performance compression position indicating sticker that is less likely to cause problems (poor connection of electric wires, etc.) when using the compression sleeve.

[0017] According to the fourth invention, since the compression position indication sticker is provided with a marker line, it is possible to provide a compression position indication sticker that is less likely to be attached in the wrong position or to be misaligned due to human error. Therefore, according to the fourth invention, when performing compression work using a compression sleeve, the risk of poor connection of the electric wires, etc., occurring due to compression being performed at a position other than the position where compression should be performed due to incorrect or misaligned placement of the compression position indicator sticker can be further reliably reduced. As a result, according to the fourth invention, it is possible to provide a compression position indicating sticker with higher performance than the third invention. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1A is a plan view of a first compression position indication sticker according to the present embodiment, and FIG. 1B is a plan view of a second compression position indication sticker according to the present embodiment. [Figure 2] 1 is a perspective view of a compression sleeve to which a compression position indication sticker according to the present embodiment is attached. FIG. [Figure 3] (3A) to (3C) are all examples of the specification markings displayed on the circumferential side of the compression sleeve. [Figure 4] 10 is a perspective view showing how a compression position indication sticker according to the present embodiment is attached to the peripheral side surface of the compression sleeve. FIG. [Figure 5] 1 is a perspective view of a compression sleeve with a compression position indication sticker attached thereto according to the present embodiment. FIG. [Figure 6] FIG. 6A is a plan view of a first compression position indication sticker according to a first modified example of the present embodiment, and FIG. 6B is a plan view of a first compression position indication sticker according to a second modified example of the present embodiment. [Figure 7] FIG. 1 is a perspective view of a conventional compression sleeve. [Figure 8] (8A) is an axial cross-sectional view of a conventional compression sleeve, (8B) is a cross-sectional view of a conventional compression sleeve with an electric wire (stranded wire) inserted therein, and (8C) is a cross-sectional view of the compression sleeve with the electric wire (stranded wire) inserted therein compressed and integrated. [Figure 9] 10 is an image showing the compression sleeve being compressed using a hydraulic compression tool. [Figure 10] 10 is an enlarged image of the compression sleeve in FIG. 9. DETAILED DESCRIPTION OF THE INVENTION

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A compression position indicator seal, a compression position indicator seal set, and a compression sleeve with a compression position indicator seal according to an embodiment of the present invention will be described in detail with reference to FIGS.

[0020] [1; Basic form of the present invention] A compression position indicating sticker according to an embodiment of the present invention (hereinafter simply referred to as "this embodiment") will be described with reference to FIG. FIG. 1A is a plan view of a first compression position indication sticker according to this embodiment, and FIG. 1B is a plan view of a second compression position indication sticker according to this embodiment. As shown in Figure 1, the first compression position indication sticker 1A and the second compression position indication sticker 1B, which are compression position indication stickers 1 according to this embodiment, both comprise a seal body 2 having a rectangular planar shape and a pattern 3 printed on the surface of this seal body 2 and indicating the compression position by a hydraulic compression tool.

[0021] The sticker body 2 is made of a transparent resin film sheet and an adhesive layer (not shown) provided on the back side thereof. 1A and 1B, the pattern 3 printed on the surface of the sticker body 2 is a rectangular colored portion. The boundary between the colored portion (pattern 3) and the non-colored portion of the compression position indicator sticker 1 according to this embodiment corresponds to the compression position indicator line 26b' on the compression sleeve 20' shown in FIG.

[0022] Furthermore, as will be explained later with reference to a separate drawing, the combination of the first compression position indication sticker 1A shown in Figure 1A and the second compression position indication sticker 1B shown in Figure 1B is the compression position indication sticker set of this embodiment (no symbol). Furthermore, in the first compression position indication sticker 1A and the second compression position indication sticker 1B of this embodiment, when they are attached to the peripheral side surface of the compression sleeve 20 shown in the following section, the pattern 3 is arranged so as to be linearly symmetrical with respect to the axial central position of the sleeve body 21 of the compression sleeve 20.

[0023] [2; How to use the present invention] A method of using the compression position indication sticker 1 according to this embodiment (a combination of the first compression position indication sticker 1A and the second compression position indication sticker 1B, ie, a compression position indication sticker set) will be described with reference to FIGS.

[0024] First, before describing how to use the compression position indication sticker 1 according to this embodiment, the compression sleeve to which the sticker is to be attached will be described with reference to FIGS. 2 and 3. FIG. Fig. 2 is a perspective view of a compression sleeve to which a compression position indication sticker according to this embodiment is attached, and Figs. 3A to 3C are examples of specification indications displayed on the circumferential side surface of the compression sleeve. The compression sleeve 20 to which the compression position indication sticker 1 according to this embodiment is attached has the same configuration as the compression sleeve 20' shown in FIG.

[0025] More specifically, as shown in FIG. 2, the compression sleeve 20 is made of a conductive metal material such as aluminum or copper, and is a cylindrical sleeve body 21 having a hollow portion 22. On the peripheral surface of the sleeve body 21, a compression position indication line 26a for a hand scissors-type compression tool and a compression position indication line 26b for a hydraulic compression tool are engraved, embossed, or printed. The compression sleeve 20 also has a pair of outlet holes 25 at its axial center for discharging the compound filled in the hollow portion 22 of the sleeve body 21 . This compound is a gel-like insulating oil that is filled into the compression sleeve 20 to prevent oxidation and ensure hydrophobicity at the joint between the electric wire and the compression sleeve 20. When the electric wire is inserted into the hollow portion 22 of the sleeve body 21, any compound that cannot be contained in the hollow portion 22 is discharged to the outside of the sleeve body 21 through the outlet hole 25.

[0026] Furthermore, the compression sleeve 20 has a specification mark 23 on its peripheral surface and at the center of the sleeve body 21 in the axial direction, which indicates the model number and usage of the compression sleeve 20. This specification marking 23, for example, as shown in Figures 3A to 3C, is rectangular and has a grid-like frame (vertical frame line 24a and horizontal frame line 24b) with the model number of the compression sleeve 20 written in the top row, the type of compression tool to be used, the model number of the compression die, and the number of compressions written in the second to fourth rows from above the grid-like frame (from the top of the paper), and the name of the manufacturer of the compression sleeve 20 written in the fifth row from above the grid-like frame (bottom row). Furthermore, in the specification marking 23 (specification marks 23a to 23c), a pair of discharge holes 25 for discharging unnecessary compound are drilled on the boundary line (horizontal frame line 24b) between the second and third rows from the top (from the top of the paper) in the grid-like frame lines (vertical frame line 24a and horizontal frame line 24b). In the compression sleeve 20, the specification markings 23 (specification markings 23a to 23c) and the pair of lead-out holes 25 are marked and drilled so as to be line-symmetrical with respect to the center of the sleeve body 21 in the axial direction.

[0027] Next, the procedure for attaching the compression position indication sticker 1 according to this embodiment to the compression sleeve 20 shown in FIG. 2 will be described with reference to FIG. 2, as well as FIGS. Fig. 4 is a perspective view showing how a compression position indication sticker according to this embodiment is attached to the peripheral side surface of the compression sleeve. Fig. 5 is a perspective view of the compression sleeve with a compression position indication sticker according to this embodiment attached. When attaching the compression position display sticker 1 (first compression position display sticker 1A and second compression position display sticker 1B) of this embodiment shown in Figure 1 to the compression sleeve 20 shown in Figure 2, the intersections P1, P2 (see Figure 2) or intersections Q1, Q2 of the vertical frame line 24a and the horizontal frame line 24b in the specification marking 23 displayed on the peripheral side of the compression sleeve 20 are used as the reference when attaching the compression position display sticker 1.

[0028] More specifically, first, a first compression position indication sticker 1A shown in FIG. 1A and a second compression position indication sticker 1B shown in FIG. 1B are prepared (step S1).

[0029] Next, as shown in Figure 4, the corner R1 at the upper left side of the longitudinal direction of the first compression position indicator sticker 1A is aligned with the intersection P1 on the specification marking 23 of the compression sleeve 20, and the corner R2 at the upper right side of the longitudinal direction of the second compression position indicator sticker 1B is aligned with the intersection P2 on the specification marking 23 of the compression sleeve 20 (step S2).

[0030] Next, as shown in Figure 4, the first compression position indicator sticker 1A is placed on the peripheral side of the compression sleeve 20 while aligning the long side 2a (top side) of the first compression position indicator sticker 1A with the horizontal frame line 24b passing through the intersection P1 in the specification marking 23 of the compression sleeve 20. At the same time, the second compression position indication sticker 1B is placed on the peripheral side of the compression sleeve 20 while aligning the long side 2a (top side) of the second compression position indication sticker 1B with the horizontal frame line 24b passing through the intersection P2 on the specification marking 23 of the compression sleeve 20 (step S3). In this step S3, the first compression position indication sticker 1A is positioned on the compression sleeve 20 near one end 21a based on the display position of the specification indication 23, and the second compression position indication sticker 1B is positioned on the compression sleeve 20 near the other end 21b based on the display position of the specification indication 23.

[0031] Finally, the portions of the first compression position indication sticker 1A and the second compression position indication sticker 1B that are not in contact with the peripheral side surface of the compression sleeve 20 are attached along the peripheral side surface of the compression sleeve 20 (step S4; see the direction indicated by symbol S in Figure 4). Furthermore, since the compression position indication sticker 1 (first compression position indication sticker 1A and second compression position indication sticker 1B) of this embodiment has a transparent seal body 2, it is easy to align the boundary between the pattern 3 (colored area) and the non-colored area in the first compression position indication sticker 1A or the second compression position indication sticker 1B with the compression position indication line 26b that is pre-displayed on the peripheral side of the compression sleeve 20. In this case, when the first compression position indication sticker 1A or the second compression position indication sticker 1B is attached to the peripheral side surface of the compression sleeve 20, it is possible to prevent the first compression position indication sticker 1A or the second compression position indication sticker 1B from shifting out of position.

[0032] The compression sleeve 27 with compression position indication stickers according to this embodiment is formed by attaching the first compression position indication sticker 1A and the second compression position indication sticker 1B to the peripheral side surface of the compression sleeve 20 (see FIG. 5).

[0033] In addition, the procedure for attaching the first compression position indicator sticker 1A and the second compression position indicator sticker 1B of this embodiment to the peripheral side surface of the compression sleeve 20 when the reference positions are the intersections Q1 and Q2 of the vertical frame line 24a and the horizontal frame line 24b in the specification marking 23 is the same as the previous steps S1 to S4.

[0034] [3; Effects of the present invention] According to the compression position display sticker 1 of this embodiment (a combination of the first compression position display sticker 1A and the second compression position display sticker 1B) as described above, by attaching (sticking) these to the peripheral side surface of the compression sleeve 20, the compression position displayed on the peripheral side surface of the compression sleeve 20 can be made easier to see. In this case, for example, when performing compression work on the compression sleeve 27 with a compression position indication seal using a hydraulic compression tool connected to an indirect live-line tool, that is, when performing compression work on the compression sleeve 27 with a compression position indication seal using the hydraulic compression tool at a position more than 50 cm away from the worker's hands, it becomes easy to compress the desired position using the hydraulic compression tool. As a result, the compression sleeve 27 with compression position indicator sticker can be used to more reliably and efficiently connect wires together. In other words, the compression position indication sticker 1 of this embodiment (a combination of the first compression position indication sticker 1A and the second compression position indication sticker 1B) can improve workability when connecting electric wires using the compression sleeve 27 with compression position indication sticker.

[0035] Furthermore, according to the compression position display sticker 1 of this embodiment (a combination of the first compression position display sticker 1A and the second compression position display sticker 1B), the frame lines of the specification display 23 displayed on the peripheral side of the compression sleeve 20, more specifically the intersections of the vertical frame lines 24a and the horizontal frame lines 24b, for example, intersections P1 and P2 (or intersections Q1 and Q2), are used as a reference when attaching them to the peripheral side of the compression sleeve 20, making it easy to accurately attach the compression position display sticker 1 (first compression position display sticker 1A, second compression position display sticker 1B) to the desired position on the peripheral side of the compression sleeve 20. In this case, the workability when sticking the compression position indication stickers 1 (first compression position indication sticker 1A, second compression position indication sticker 1B) onto the peripheral side surface of the compression sleeve 20 can be improved.

[0036] Furthermore, by accurately attaching the compression position indicator sticker 1 (first compression position indicator sticker 1A, second compression position indicator sticker 1B) at the desired position on the circumferential side of the compression sleeve 20, the work accuracy can be improved when compressing the compression sleeve 27 with compression position indicator sticker using a hydraulic compression tool. In this case, there is an advantage that the electric wires can be connected securely using the compression sleeve 27 with the compression position indication seal.

[0037] [4; Regarding the detailed structure and modifications of the present invention] (Regarding the material of the seal body) The sticker body 2 of the compression position indication sticker 1 according to this embodiment may be made of a non-transparent sheet material (for example, made of resin or paper). In this case, it is advisable to set the angle θ between the long side 2a and the short side 2b that form the corner R1 of the first compression position indicator sticker 1A or the corner R2 of the second compression position indicator sticker 1B to 90° (see Figures 1A and 1B). In this case, it goes without saying that the angle θ′ formed by the vertical frame line 24a and the horizontal frame line 24b in the specification display 23 must be 90° (see FIGS. 3A to 3C).

[0038] (Regarding the length of the seal body) The longitudinal length L1 of the compression position indication seal 1 (first compression position indication seal 1A or second compression position indication seal 1B) in this embodiment may be made to coincide with the distance L2 from the intersection P1 (or Q1) in the compression sleeve 20 to one end 21a of the sleeve main body 21, or the distance L2 from the intersection P2 (or Q2) to the other end 21b of the sleeve main body 21. In this case, if the first compression position indicator sticker 1A (or the second compression position indicator sticker 1B) protrudes from one end 21a (or the other end 21b) of the sleeve body 21 in step S3 of the procedure for attaching the compression position indicator sticker 1 shown above, it can be realized that the positioning of the compression position indicator sticker 1A or the second compression position indicator sticker 1B on the peripheral side of the compression sleeve 20 is incorrect. Furthermore, in this case, the placement of the compression position indication sticker 1A or the second compression position indication sticker 1B can be corrected to an appropriate position. As a result, the first compression position indication seal 1A and the second compression position indication seal 1B can be attached accurately to the desired position on the peripheral surface of the compression sleeve 20, so that the accurate position can be compressed even when compressing the compression sleeve 27 with compression position indication seals using a hydraulic compression tool.

[0039] (About the marker line) As shown in Figures 1, 4 and 5, the compression position indicator sticker 1 (first compression position indicator sticker 1A, second compression position indicator sticker 1B) of this embodiment may have a marker line 4, which is a wide line printed along the side (long side 2a and / or short side 2b) that contacts the vertical frame line 24a and / or horizontal frame line 24b of the specification indicator 23 when they are attached to the peripheral side of the compression sleeve 20. In this case, it is possible to highlight either one or both of the two sides (long side 2a and short side 2b) forming corner R1 or corner R2 in the seal body 2 of the compression position indication seal 1 (first compression position indication seal 1A, second compression position indication seal 1B) of this embodiment. As a result, the positioning operation of the first compression position indication seal 1A or the second compression position indication seal 1B on the peripheral side surface of the compression sleeve 20 can be carried out efficiently and accurately.

[0040] (Variations of the compression position indication sticker) A modified example of the compression position indication sticker according to this embodiment will be described with reference to FIG. FIG. 6A is a plan view of a first compression position indication sticker according to a first modified example of this embodiment, and FIG. 6B is a plan view of a first compression position indication sticker according to a second modified example of this embodiment. In the first and second modified examples, the second compression position indication sticker is not shown.

[0041] When the intersections P1 and P2 on the horizontal frame line 24b where the outlet hole 25 is drilled are used as reference positions when attaching the compression position indicator sticker 1 (first compression position indicator sticker 1A, second compression position indicator sticker 1B) of this embodiment to the peripheral side surface of the compression sleeve 20, there is a concern that part of the outlet hole 25 may be blocked by the seal body 2. In this case, there is a risk that the compound filled in the hollow portion 22 of the sleeve body 21 cannot be smoothly discharged from the outlet hole 25 when necessary.

[0042] In consideration of these circumstances, when the first compression position indication seal 1A1 (see Figure 6A) or the first compression position indication seal 1A2 (see Figure 6B) is attached to the peripheral side surface of the compression sleeve 20, a notch 5 (see Figure 6A) or a notch 5' (see Figure 6B) may be formed in the portion of the seal body 2 that is positioned above the outlet hole 25. The notch 5 formed in the first compression position indication sticker 1A1 according to the first modified example has a planar shape that follows the contour of the lead-out hole 25. The notch 5' formed in the first compression position indication sticker 1A2 according to the second modification is formed by cutting out the corner R1 of the seal body 2 near the outlet hole 25. In this case, since the seal body 2 does not have the corner R1, it is necessary to align the seal body 2 using the long side 2a and the short side 2b.

[0043] In either case, when the first compression position indication seal 1A1 (see Figure 6A) or the first compression position indication seal 1A2 (see Figure 6B) is attached to the peripheral side of the compression sleeve 20, a portion of the discharge hole 25 is not blocked by the seal body 2, so that the compound can be smoothly discharged from the discharge hole 25 to the outside of the sleeve body 21 when necessary. Therefore, the first compression position indication sticker 1A1 (see Figure 6A) relating to the first modified example or the first compression position indication sticker 1A2 (see Figure 6B) relating to the second modified example can provide a compression position indication sticker that is more practical. [Industrial Applicability]

[0044] As described above, the present invention provides a compression position indicator sticker, a compression position indicator sticker set, and a compression sleeve with a compression position indicator sticker that can be retrofitted onto the peripheral surface of a compression sleeve to make the indication of the compression position easier to see, and can be used in technical fields related to the maintenance of power transmission equipment, etc. [Explanation of symbols]

[0045] 1...Compression position indication sticker 1A, 1A1, 1A2...First compression position indication sticker 1B, 1B1, 1B2...Second compression position indication sticker 2...Seal body 2a...Long side 2b...Short side 3...Pattern 4...Marking line 5, 5'...Notch 20, 20'...Compression sleeve 21, 21'...Sleeve body 21a, 21a'...One end 21b, 21b'...Other end 22, 22'...Hollow portion 23...Specification marking 24a...Vertical frame line 24b...Horizontal frame line 25, 25'...Outlet hole 26a, 26a'...Compression position indication line (for hand scissors type) 26b, 26b'...Compression position indication line (for hydraulic type) 27...Compression sleeve with compression position indication sticker 30...Compression position 31...Electric wire 32...Insulating outer sheath 40...Hydraulic compression tool 41...Indirect live-line tool 42...Worker

Claims

1. A seal attached to the peripheral surface of the compression sleeve to indicate the position where the compression sleeve is compressed by the hydraulic compression tool, a seal body having a rectangular planar shape; A compression position indication seal, characterized in that it comprises a pattern printed on the seal body and indicating the compression position by the hydraulic compression tool.

2. 2. The compression position indication sticker according to claim 1, wherein the sticker body is made of a transparent resin film.

3. the compression sleeve has a specification marking on its peripheral surface and at its axial center, the specification marking being indicated by a grid frame or a frame; A compression position indicator sticker set characterized by being composed of a pair of compression position indicator stickers as described in claim 1 or claim 2, which are respectively affixed near one end and the other end of the compression sleeve based on the specification marking.

4. 4. The compression position indication sticker set according to claim 3, wherein each of the compression position indication stickers has a marking line printed along the edge located on the specification indication side.

5. The compression position indication sticker set according to claim 3; A compression sleeve with a compression position indication seal, characterized in that it comprises: a compression sleeve having the specification indication indicated using a lattice frame or frame on the peripheral side and at the center in the axial direction.

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