JP2015010859A - Gauges for roller chains - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide gauges that can easily identify the standards of a roller chain for use in motor-driven shutters or the like for architectural use.SOLUTION: As many gauges 9 to 14 as the number of roller chain standards are provided, and in the gauges 9 to 14, gauge grooves 9b to 14b into which rollers are to be fitted and gauge convexes 9c to 14c matching the sizes of spaces formed between adjoining rollers and the inner widths of links are formed at pitch intervals p. Out of these gauges 9 to 14, what exactly fits a roller chain can identify the standards of the roller chain.

Description

  The present invention relates to the technical field of gauges for roller chains used as one of power transmission means.

  In general, this type of roller chain is used as a power transmission in various mechanical fields, but one of such fields is the field of architectural shutters. It is used as a power transmission means between the machine and the winding drum around which the shutter curtain is wound. By the way, since the roller chain wears with use, maintenance such as replacement is required when the time comes. Therefore, the wear amount of the roller chain is measured by the extension amount of the roller chain, and it is determined that the replacement time has been reached when the extension amount reaches a certain point. A gauge is known (see, for example, Patent Document 1). However, in this case, it is difficult to measure the roller chain at one pitch because the extension amount is small, and therefore, the extension amount of the roller chain having a large number of pitches is measured and judged.

Japanese Patent No. 3415517

  By the way, in the field of architectural shutters, there is a short distance between the sprockets of the opening / closing machine and the winding drum, and there are only a few pitch roller chains between them. In some cases, measurement may not be possible, and the observer visually confirms the degree of occurrence of rust, etc., and determines whether or not the replacement time has been reached. The roller chain will be replaced, but the switch and take-up drum are housed in a shutter case provided in the ceiling above the opening. However, in this case, if the roller chain standard is not known, which standard is the roller chain? It is difficult to accurately determine the standard of only one roller chain that cannot be compared with other roller chains in the high place and dark place. There is a problem to be solved by the present invention.

The present invention was created in view of the above-described circumstances in order to solve these problems, and the invention of claim 1 is different in the pitch, the outer diameter of the roller, and the inner width of the link. A gauge for identifying the standard of a roller chain set with a plurality of standard dimensions, and there are a plurality of gauges corresponding to the number of the standards, and a plate smaller than the inner width of the link At least one of a gauge groove having a groove width to be fitted into the roller and a gauge convex portion to be fitted into a space formed between adjacent rollers and the inner width of the link is formed in the gauge body having a thickness. The small standard side gauge groove is set to a groove width that fits into the small standard side roller but does not fit into the large standard side roller. It fits in the space but in the small standard side space A gauge for a roller chain, wherein the gauge groove and / or the gauge convex part is set so as to be inserted deeper than the center of the roller when fitted into the roller chain. It is.
The invention according to claim 2 is the gauge for a roller chain according to claim 1, wherein the gauge is provided in the gauge body in a state where both the gauge groove and the gauge convex portion are adjacent to each other.
The invention according to claim 3 is the gauge for a roller chain according to claim 2, wherein a plurality of gauges are provided with a pitch corresponding to each other between continuous gauge grooves and gauge projections.
In the invention according to claim 4, the groove width of the gauge groove is a dimension between the roller outer diameter of the large standard side roller and the roller outer diameter of the small standard side roller, and the size of the gauge convex portion is the large standard side. The roller chain gauge according to any one of claims 1 to 3, wherein the gauge is a size between the size of the space and the size of the small standard side space.
The invention according to claim 5 is characterized in that the gauges are individually formed for each standard of the roller chain, and the formed individual gauges are gathered together. The roller chain gauge according to any one of 1 to 4.
The invention of claim 6 is characterized in that one gauge is provided on each side of a plate-like body formed in a polygonal shape corresponding to the standard number of roller chains. Or a roller chain gauge according to claim 1.

According to the invention of claim 1, a roller chain with different size standards is identified by using a gauge in which at least one of a gauge groove and a gauge convex portion is formed on the gauge body, and it is narrow and accessible only in a dark place. Even if you are not skilled in the space, the gauge fits into the roller chain, and even if you slide it sideways, it will be in a state where it does not move.
According to the second and third aspects of the invention, it is possible to more reliably identify the roller chain standard.
By making it the invention of Claim 4, it becomes easy to perform the fitting operation of the gauge to the roller chain, and the workability of the identification work is improved.
According to the inventions of claims 5 and 6, it is possible to prevent a plurality of gauges from being combined into one according to each standard and being lost.

(A) and (B) are a schematic front view and a schematic side view of an architectural shutter device. It is a top view of a roller chain. It is a standard dimension table of a roller chain. (A)-(F) is a front view of each standard gauge of 1st embodiment. (A)-(C) are the front view of the aggregate | assembly of the standard gauge of 1st embodiment, a bottom view, and the front view of the state which rotated each cage. It is a dimension table figure of each standard gauge. (A) (B) is sectional drawing which shows the insertion state of the gauges and roller chain of which standards matched, and sectional drawing which shows the non-insertion state of gauges and roller chains of standards which did not meet. (A) (B) (C) (D) is a front view of each standard gauge showing the second embodiment, a front view of the assembly, a front view showing the rotated state of the assembly, assembly It is a bottom view of a body. (A) and (B) are the front views of the gauge of a third embodiment, and AA sectional view of (A).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Reference numeral 1 denotes an architectural electric shutter device installed in an opening such as a doorway of a building. The electric shutter device 1 for construction is rotatable in a shutter case 2 disposed on the ceiling of the opening. A take-up drum 4 around which the shutter curtain 3 is wound and an electric opening / closing device 5 are provided, but there is no end between the sprockets 4a and 5a provided on the take-up drum 4 and the opening / closing device 5, respectively. The roller chain 6 is wound. The shutter curtain 3 is guided by the left and right guide rails 7 by the rotation of the winding drum 4 in accordance with the forward / reverse driving of the opening / closing machine 5, and so on.

  The roller chain 6 is composed of inner and outer links 6a and 6b, a pin 6c that passes through the laminated portion of the inner and outer links 6a and 6b, and a roller 6d that is rotatably fitted on the pin 6c. is there.

  8 is an assembly of gauges for roller chains, and the gauge assembly 8 is a chain number “35”, “38”, or “40” of the roller chain 6 that is generally employed in the electric shutter device for building 1. "" 50 "" 60 "" 80 "roller chain gauges 9, 10, 11, 12, 13, 14 are prepared in this embodiment, but if necessary, gauges other than these can be used. Of course it can be prepared. FIG. 3 shows the pitch p, roller outer diameter Dr, and roller link inner width W of the roller chain 6 of each standard.

  The gauges 9 to 14 constituting the cage assembly 8 are applied to the rollers 6d for four pitches in this embodiment on one long side of the gauge bodies 9a to 14a using a rectangular square plate material. Gauge grooves 9b to 14b and gauge protrusions 9c to 14c are alternately formed in an adjacent state, and a pair of processing holes 9d to 14d necessary for processing the gauge grooves 9b to 14b on the other long side. However, each gauge 9-14 can be rotated individually by inserting a screw 15 into one of the processing holes 9d-14d of each gauge 9-14 and tightening with a nut 15a. It is configured as follows. And the chain number and pitch of the roller chain 6 are engraved in front of each gauge 9-14. In addition, by inserting a washer formed of an appropriate material such as a resin material or metal between the gauges 9 to 14, a gap is formed between the gauges 9 to 14, and the turning operation is easy. Moreover, each gauge 9-14 can be made into a gauge aggregate | assembly using the assembly member of a ring and an endless cable body (a wire, a chain, a string, etc.) instead of the screw 15. FIG.

In the table of FIG. 6, the pitch P of each gauge 9 to 14, the gauge groove width (the length between the groove inner peripheral surfaces) Dx, the gauge plate thickness (the width of the gauge protrusion) t, and the length of the gauge protrusion in the pitch direction Although the first example of the length L is described, for example, in the case of “chain number 38”, the standard dimension of the roller chain 6 is as shown in FIG.
Pitch p: 12.70 mm
Roller outer diameter Dr: 7.80 mm
Roller link inner width W: 4.80 mm
Therefore, as the gauge 10 for 38 chains,
Pitch P: 12.70 mm
Gauge groove width Dx: 8.00 mm
Gauge thickness t: 4.00 mm
Gauge convex length L: 4.70 mm
Is set.
That is, the pitches p and P of the roller chain 6 and the 38 chain gauge 10 are both 12.70 mm (p = P), the gauge groove width Dx is 8.00 mm, and the roller outer diameter Dr is larger than 7.80 mm. (Dx> Dr) so that the gauge groove 9b can be fitted to the roller 6d, and the gauge plate thickness (width of the gauge convex portion 9c) t is 4.00 mm (which is smaller than the link inner width W (4.80 mm)). t <W), and the length L of the gauge protrusion 6c is 4.70 mm, which is smaller than the dimension between the adjacent rollers 6d (4.90 mm = p−Dr> L). The size is such that it can be fitted into a space S formed between the adjacent rollers 6d and the inner width of the links 6a and 6b. In this case, the gauge grooves 9b to 14b and the gauge protrusions 9c to 14c are set to lengths that can be inserted deeper than the center of the roller 6d when fitted into the roller chain 6.

  With this configuration, the 35 chain gauge 9 is fitted to the roller chain with chain number 35, and the 38 chain gauge 10 is fitted to the roller chain 6 with chain number 38. Since the 35 chain gauge 9 does not fit into the roller chain 6 with the number 35 and the roller chain 6 with the chain number 38 due to the difference in pitch, it can be distinguished from each other, but the gauge groove 9b of the 35 chain gauge 9 has the chain number. Since the groove width Dx is smaller than the outer diameter Dr of the roller 6d of the 38 roller chain 6, the two roller chains 6 can be identified by this, and the gauge convex portion 10c of the 38 chain gauge 10 can be identified. Is larger than the dimension of the space S of the roller chain 6 of chain number 35, so that it is inserted. Can not, so that can be identified in both the roller chain 6 also thereby.

  In addition, the following considerations have been made for this product. The roller chains with chain numbers 38 and 40 have the same pitch p and almost the same roller outer diameter Dr. Therefore, the 38 chain gauge 10 and the 40 chain gauge 11 have the same pitch P and gauge groove width Dx. The gauge plate thickness t of the 40 chain gauge 11 is 7.85 mm, the inner width W of the link of the chain number 38 is larger than 4.80 mm, and the gauge groove 11b and the gauge of the 40 chain gauge 11 are indistinguishable. None of the protrusions 11c fits into the roller 6d of the roller chain 6 with the chain number 38 and the space S, so that the roller chains 6 with the chain numbers 38 and 40 can be identified.

  In the present embodiment configured as described above, when identifying which standard the roller chain 6 having different dimensional standards is, the aggregate 8 of gauges 9 to 14 formed corresponding to each dimensional standard is provided. When it is brought into the field, and a gauge that is considered appropriate by visual inspection is pulled out and applied to the roller chain 6, it can be identified as a roller chain having the chain number described on the gauge when it is just fitted. . On the other hand, when it does not fit, the gauge considered to be appropriate next is extracted and it is confirmed whether it fits to the roller chain 6 or not.

  As described above, in the case where the present invention is implemented, the chain number of the roller chain 6 can be quickly recognized at the site, and misidentification can be avoided.

Of course, the present invention is not limited to the above-described embodiment. Regarding the gauge groove, the small standard side gauge groove is fitted into the small standard side roller, but the large standard side roller is fitted. The groove width is set to such a size that the large standard side gauge convex portion is inserted into the large standard side space but not to the small standard side space.
In addition, for the gauge convex part, either the gauge plate thickness t or the length L in the pitch direction is such that the large standard gauge convex part fits into the large standard side space but does not fit into the small standard side space. As long as it is set to. In this case, like the groove width of the gauge groove, either the gauge plate thickness t or the length L in the pitch direction is a dimension that fits into the space S with a margin, for example, the gauge plate thickness of a 40-80 chain gauge. The same thickness can be set as t.

Further, in the present invention, at least one of a gauge groove and a gauge convex part is formed, and the small standard side groove is set to a groove width that fits into the small standard side roller but does not fit into the large standard side roller. The large standard-side gauge convex portion only needs to be set to a size that fits into the large-standard side space but does not fit into the small-standard side space. For example, the second embodiment shown in FIG. As in the embodiment, one gauge groove 9b to 14b and a pair of gauge protrusions 9c to 14c can be formed at both ends thereof. Further, in the third embodiment shown in FIG. As described above, one gauge 9 to 14 can be formed on each side 16a to 16f of the polygonal plate 16 corresponding to the standard number of roller chains. Is to cut the plate-like body 16 thinly In this case, the gauge protrusions 9c and 10c can be fitted into the space S. In such a case, the gauge group 8 becomes one and is easy to handle. The standard recognition work of the roller chain 6 becomes easier. In the second and third embodiments, since the gauge groove is one, even when the roller chain is extended, the gauges 9 to 14 can be inserted into the roller chain, and the roller chain is affected by the extension. There is nothing.
Further, in the present invention, the gauge groove is only required to be set to a groove width of a size that the small standard side gauge groove fits into the small standard side roller but does not fit into the large standard side roller. When recognizing the standards of roller chains with different roller outer diameters, it is only necessary to have gauges with different gauge grooves. For this reason, the gauge protrusions formed on both sides of the gauge grooves are loosely fitted in the space S to recognize the standards. Small dimensions that are not involved may also be used.
On the other hand, as for the gauge convex part, the large standard side gauge convex part may be set to a size that fits into the large standard side space but does not fit into the small standard side space. It can be a rod-shaped one that is simply inserted.

  INDUSTRIAL APPLICATION This invention can be utilized for identifying the specification of the roller chain provided in the electric shutter for construction etc. in the installation site.

DESCRIPTION OF SYMBOLS 1 Electric shutter device for construction 6 Roller chain 6a, 6b Link 6d Roller 8 Gauge assembly 9-14 Gauge 9a Gauge body 9b Gauge groove 9c Gauge convex part p Roller chain pitch Dr Roller outer diameter W Link inner width Dx Gauge groove width P Gauge pitch t Gauge thickness S Space

Claims (6)

A gauge for identifying the standard of a roller chain set with a plurality of standard dimensions in which the pitch, the outer diameter of the roller, and the inner width of the link are different in size, and there are a plurality of gauges corresponding to the number of the standards A gauge body having a plate thickness smaller than the inner width of the link is formed between a gauge groove having a groove width to be fitted into the roller and between the adjacent rollers and the inner width of the link. At least one of the gauge protrusions that fits into the space is formed, and the small standard gauge groove has a groove width that fits into the small standard roller but does not fit into the large standard roller. The large standard side gauge convex part is set to a size that fits into the large standard side space but does not fit into the small standard side space, and the gauge groove and / or gauge convex part is formed in the roller chain. Roller when inserted Gauge for roller chain according to claim 1, wherein that it is deeply fitted set than heart. 2. The gauge for a roller chain according to claim 1, wherein the gauge is provided on the gauge body in a state where the gauge groove and the gauge convex part are adjacent to each other. 3. The gauge for a roller chain according to claim 2, wherein a plurality of gauges are provided in such a way that continuous gauge grooves and gauge protrusions have corresponding pitches. The groove width of the gauge groove is the dimension between the roller outer diameter of the large standard side roller and the roller outer diameter of the small standard side roller, and the size of the gauge convex part is the size of the large standard side space and the small standard side The roller chain gauge according to any one of claims 1 to 3, wherein the gauge is a size between the size of the space. The gauge is individually formed for each standard of the roller chain, and the formed individual gauges are gathered into a collective body. Gauge for the described roller chain. 5. The roller chain according to claim 1, wherein one gauge is provided on each side of a plate-like body formed in a polygonal shape corresponding to the standard number of roller chains. Gauge.

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