JP4336017B2 - Connecting means and tightening band - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tightening band for sealing a vessel having a round opening such as a water purifier, a filter, a dryer, etc., or connecting a circular cylindrical body such as a filter or piping, and a tightening band including the tightening band. The present invention relates to a connecting means for connecting and tightening members in a ring shape.
[0002]
[Prior art]
Conventionally, in order to connect and tighten round flanges such as the peripheral edge of the lid of the round open drum can and the flange of the container opening port, for example, it has a U-shaped or V-shaped cross section and has a semicircular arc shape. A tightening band having a pair of band bodies to be presented is used. Such a tightening band includes a bolt-type connecting means for swingably connecting the pair of band main bodies with their fastening ends (end portions that cannot be opened), and the pair of band main bodies. There is a latch-type connecting means for connecting with an opening / closing end (end portion that can be releasably connected), and the fastening band is attached to the lid of the container of the round open drum, and the latch-type connection is provided. After closing the tightening band by means, and operating the tightening of the fastening nut with respect to the fastening bolt of the connecting means to draw the fastening ends of the pair of band bodies toward each other (reducing the diameter of the fastening band), the lid In addition, the container closing strength and the container sealing property can be adjusted.
[0003]
In the tightening band having such a structure, the tightening degree of the fastening nut with respect to the fastening bolt greatly affects the closing strength and sealing property of the container, but the fastening nut is tightened with respect to the fastening bolt every time the drum can is opened and closed repeatedly. Since the loosening is performed, it is inevitable that the screw bolts of the fastening bolt and the fastening nut are damaged and the function of the fastening bolt is deteriorated, and the deteriorated fastening bolt and the fastening nut are appropriately replaced.
[0004]
[Problems to be solved by the invention]
However, in the conventional tightening band, no consideration is given to the replacement of the fastening bolt, and much time is required for the replacement. For example, as shown in FIGS. 6 and 7, a T-shaped mediating pipe 32 is attached to a T-shaped fastening bolt 31, and the fastening length of the fastening bolt 31 and the mediating pipe 32 is limited by tightening the fastening nut 33. When the connecting means 36 is used, a pair of bearing portions 37, 37 are provided at the fastening ends of the band bodies 38, 38, and the side protruding shafts 34, 35 on the heads of the fastening bolt 31 and the intermediate pipe 32 are rocked. A shape that pivots in a movable manner is adopted, and at the same time, the bearings 37 and 37 are given such strength that the pivotal state is not easily released. This strength becomes an element that hinders the replacement of the fastening bolt 31. Specifically, the side convex shafts 34 and 35 formed on the heads of the fastening bolt 31 and the intermediate pipe 32 can be easily removed from the bearing portions 37 and 37. It has a structure that cannot be removed.
[0005]
The present invention has been made in view of the above circumstances, and an object thereof is to provide a fastening band having a structure in which a connecting bolt can be easily detached.
[0006]
[Means for Solving the Problems]
The connecting means according to the present invention for solving the above-mentioned problems includes a stationary shaft pivotably supported by two-point support on one of end portions of the fastening members that are connected to each other, and a central portion of the stationary shaft. The other end of the end of the band body connected to each other by a two-point support. The movable shaft is inserted and the fastening bolt is inserted into the central portion thereof, and the intermediate pipe is inserted through the fastening bolt and presses the movable shaft toward the stationary shaft as the fastening nut is tightened. It is characterized by. The tightening member refers to a tool for sealing a vessel having a round opening, such as a water purifier, a filter, a dryer, or the like, or connecting circular cylinders such as a filter and piping. The stationary shaft and the working shaft are preferably formed in a cylindrical shape so that they can be easily rotated with respect to the bearing portion in a state where they are supported at two points, but other columnar shapes are also possible. The intermediate pipe is preferably cylindrical in terms of good slidability with respect to the fastening bolt, but may be another cylindrical shape.
[0007]
The tightening band according to the present invention to solve the above-mentioned problems includes a band body having a U-shaped or V-shaped cross section in the tightening action portion and an arc shape, and the band body having a ring shape with its end. And a pair of band bodies having a U-shaped or V-shaped cross section in the tightening action portion and exhibiting a semicircular arc shape, and the pair of band bodies with the ends thereof as a ring A pair of connecting means connected in a shape, and the connecting means (at least one of the pair of connecting means when using a pair of band main bodies exhibiting a semicircular arc shape) is an end of the band main body for phase connection A stationary shaft that is pivotally supported by one of the two parts by two-point support, a fastening bolt that passes through the center of the stationary shaft and whose end portion is non-rotatably locked, and the fastening bolt and screw With fastening nuts A movable shaft that is pivotably supported by two-point support on the other end of the band main body that is phase-coupled and through which the fastening bolt is inserted, and the fastening bolt is inserted to tighten the fastening nut. Along with this, the intermediate shaft is configured to press the movable shaft toward the stationary shaft.
[0008]
For example, in the case of a round open drum can, for example, when the container and the lid are tightened, the tightening action portion refers to a portion that pressurizes the peripheral edge of the lid and the peripheral edge of the container opening port at the same time. The letter-shaped or V-shaped cross section is a generic term for a cross-sectional shape having a concave portion for covering the periphery of a circular connecting portion such as a lid and a container that are connected to each other (hereinafter referred to as a U-shape). To exhibit an arc shape or a semicircular arc shape means that the cross-sectional shape continues in an arc shape or a semicircular arc shape. The two-point support means that the left and right sides of the fixed shaft and the movable shaft sandwiching the insertion point of the connecting bolt are supported, not cantilevered.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the tightening band according to the present invention will be described based on an example in which the tightening band is used for an opening of a round open drum.
In the first embodiment shown in FIG. 3 (a), a band main body 2 having a U-shaped cross section in the tightening action portion 1 and exhibiting an arc shape, and a connection that closes the band main body 2 in a ring shape with its end portions. And means 3.
[0010]
As shown in FIG. 5, the band body 2 has a pair of tightening action portions 1, 1 that simultaneously pressurize the periphery of the lid 10 and the flange 11 at the periphery of the container opening, and the outer periphery of the tightening action portions 1, 1 It is comprised with the band part 12 of the end ring shape fixed by the form which covers in the shape. The diameter of the band portion 12 is expanded or reduced by the function of the connecting means 3 (hereinafter referred to as a tightening action). Encourage to shrink. The tightening action portions 1 and 1 in this embodiment each have a semicircular shape as shown in FIG. 3, and cover the periphery of the lid 10 and the periphery of the container opening port with two members. By doing so, it is not necessary to apply a large force to deform the tightening band, and it becomes easy to attach the tightening band to the drum can opening. However, the peripheral edge of the lid 10 is formed by a single member of the circumferential tightening action portion 1. And it is good also as a structure which covers a container open port periphery. The inner surface of the tightening action part 1 is tightened so as to guide the peripheral edge of the lid 10 and the flange 11 on the peripheral edge of the container opening port closer to each other by the enlargement or reduction of the diameter of the tightening action part 1 A curve or slope that narrows toward the outside of the ring shape exhibited by the action portion 1 is provided (see FIG. 5).
[0011]
As described above, the connecting means 3 for generating the tightening action on the band body 2 is supported by the two-point support bearings 13 and 13 provided at both ends of the band portion 12. The bearing portions 13 and 13 have a bifurcated shape with a relatively long central gap 14 (see FIG. 2) so that the connecting means 3 can be easily attached and does not hinder the tightening action. The end of the metal band constituting the band portion 12 is provided with an oval punch hole, and the bent portion 15 is appropriately rounded as a bearing in the longitudinal direction of the band portion 12 with the central portion of the punch hole. It is formed by folding back while securing the.
[0012]
The connecting means 3 connects the end portions of the band body 2 that are connected to each other, and changes the distance between the stationary shaft 4 and the movable shaft 7 that are pivotally supported by the bearing portions 13 and 13 provided at the end portions. It is something to be made. The fixed shaft 4 and the movable shaft 7 are pivotally supported by shaft support portions 13 and 13 formed at end portions of the band main body 2 that are connected to each other as shown in FIG. Fastening bolts 5 for restricting the attitude of the stationary shaft 4 and the movable shaft 7 and the sliding track of the movable shaft 7 are provided in the through holes 16 and 17 formed at the center of each of the stationary shaft 4 and the movable shaft 7. A through hole of the stationary shaft 4 is provided with a notch portion 19 that is inserted at a right angle with respect to the axes of the through holes 16 and 17 (see FIG. 1) and that holds and accommodates the rectangular head portion 18 of the fastening bolt 5. The fastening bolt 5 is not rotatable with respect to the stationary shaft 4 by being provided at the peripheral edge of 16 (when it is not necessary to render it impossible to rotate, the head of the fastening bolt 5 and the stationary shaft 4). In some cases, the cutout portion of the can be rotated.) By making it possible to insert and remove the stationary shaft 4 and the movable shaft 7 as described above, even if the screw hole of the fastening bolt 5 is deteriorated and the connecting means 3 becomes malfunctioning, the fastening bolt 5 can be very easily attached. Can be exchanged.
[0013]
At the tip of the fastening bolt 5 penetrating the stationary shaft 4 and the movable shaft 7, an intermediate pipe 8 that is in direct contact with the movable shaft 7 is mounted, and the intermediate pipe 8 is pressed to the movable shaft 7 side. The fastening nut 6 carrying the above is screwed together. The intermediate pipe 8 has a length that is twice or more the diameter of the fastening bolt 5 and is set to such an extent that its inner diameter does not rattle against the fastening bolt 5. Due to the presence of the intermediate pipe 8, the pressing force by the fastening nut 6 is urged to work along the axis of the through hole 17 formed in the movable shaft 7, and the screwed state of the fastening nut 6 is inclined. Deterioration of the threads formed on the fastening nut 6 and the fastening bolt 5 is suppressed. Further, by increasing the length of the connecting nut 6 to about twice the diameter of the fastening bolt 5, the torque applied to one screw thread is reduced and the service life of the screw thread is further extended.
[0014]
By attaching the tightening band to the opening of an open drum suitable for the band and tightening the fastening nut 6 screwed into the fastening bolt 5 of the connecting means 3, the peripheral edge of the lid 10 and the flange 11 around the peripheral edge of the container opening. Are brought into close contact with each other, and the drum can is sealed (see FIG. 4).
[0015]
FIG. 3B shows a second embodiment of the tightening band according to the present invention. In this example, a pair of band main bodies 2 and 2 having a U-shaped cross section in the tightening action portion 1 and exhibiting a semicircular arc shape, and a pair of band main bodies 2 and 2 connected in a ring shape with their ends. It is comprised by the connection means 3 and 3. The structure of the end portion of each pair of band bodies 2 and 2 and the structure of the connecting means 3 attached to the bearing portion 13 formed at the end portion are the same as in the first embodiment, and the fastening nut 6 The drum 10 can be hermetically sealed by tightening the periphery of the lid 10 and the flange 11 at the periphery of the container opening, but the periphery of the drum can be held by the two band bodies 2 and 2. In this respect, it is structurally different from the first embodiment, and the band portion 12 fixed so as to cover the outer periphery of the tightening action portions 1, 1 in a circumferential manner matches the separated state of the tightening action portions 1, 1. The respective ends are connected by connecting means 3 and 3.
[0016]
FIG. 3C shows a third embodiment of the tightening band according to the present invention. In this example, one of the connecting means 3 and 3 in the second embodiment is used as a connecting means 3 having a latch structure 20 in which one end of the connecting means can be separated from the band main bodies 2 and 2. . By adopting such a structure, it becomes extremely easy to temporarily fix the tightening band to the periphery of the opening of the container, and the complexity of the tightening work can be reduced. It should be noted that whether or not a sealing material is attached to the inside of the tightening action portion 1 may be appropriately determined according to the use of the tightening band.
[0017]
【The invention's effect】
As described above, when the connecting means and the tightening band according to the present invention are used, it is easier and quicker than a conventional tightening band using a T-shaped integrated fastening bolt that cannot be replaced unless the fastening bolt is cut. Since the fastening bolts can be removed, it is very easy to replace the fastening bolts and fastening nuts that have damaged threads during periodic inspection of the fastening bolts and fastening nuts. Contributing to the improvement of the quality of maintenance management, the time required for the inspection work is greatly shortened, and the reliability of the sealed state of the drum can is greatly improved.
[Brief description of the drawings]
[Fig. 1] (I) (B)
It is the external view and exploded view which show an example of the connection means used for the fastening band by this invention.
[Fig.2] (A) (B)
It is the schematic explanatory drawing which showed an example of the connection aspect of the band main body edge part in the clamp | tightening band by this invention.
[Fig. 3] (A) (B) (C)
It is the schematic explanatory drawing which showed the example of the fastening band by this invention.
FIG. 4 is a schematic explanatory view showing an example of an embodiment of a tightening band according to the present invention.
FIG. 5 is an enlarged schematic explanatory view showing a main part of an embodiment of a tightening band according to the present invention.
FIG. 6 is a schematic explanatory view showing an example of a connection mode of band body end portions in a conventional tightening band.
FIG. 7 is an exploded view showing an example of connecting means used in a conventional tightening band.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tightening action part 2 Band main body 3 Connecting means 4 Immovable shaft 5 Fastening bolt 6 Fastening nut 7 Movable shaft 8 Intermediary pipe 9 Band main body

Claims (3)

  A fixed shaft (4) and a movable shaft (7), which are pivotally supported by two-point support, respectively, at the ends of the tightening members that are connected to each other;
  The stationary shaft (4) and the movable shaft (7) each have a through hole (16, 17) at the center thereof.
  A fastening bolt (5) for regulating the attitude of the stationary shaft (4) and the movable shaft (7) and the sliding track of the movable shaft (7) is inserted through the through holes (16, 17),
  An intermediate pipe (8) for pressing the movable shaft (7) toward the stationary shaft (4) is attached to the fastening bolt (5) penetrating the stationary shaft (4) and the movable shaft (7). Screw the fastening nut (6) that presses the mediating pipe (8) toward the movable shaft (7),
  The end of the fastening bolt (5) is hooked non-rotatably with respect to the stationary shaft (4),
  A connecting means in which the intermediate pipe (8) is at least twice as long as the diameter of the fastening bolt (5). A band main body (2) having a U-shaped or V-shaped cross section in the tightening action portion (1) and exhibiting an arc shape, and a connecting means (3) for closing the band main body (2) in a ring shape with its end portions Consists of
The connecting means (3)
A stationary shaft (4) and a movable shaft (7) pivotably supported by two-point support at the ends of the band body (2) that are connected to each other,
The stationary shaft (4) and the movable shaft (7) each have a through hole (16, 17) at the center thereof,
A fastening bolt (5) for regulating the posture of the stationary shaft (4) and the movable shaft (7) and the sliding track of the movable shaft (7) is inserted through the through holes (16, 17),
An intermediate pipe (8) for pressing the movable shaft (7) toward the stationary shaft (4) is attached to the fastening bolt (5) penetrating the stationary shaft (4) and the movable shaft (7). Screw the fastening nut (6) that presses the mediating pipe (8) toward the movable shaft (7),
The end of the fastening bolt (5) is hooked non-rotatably with respect to the stationary shaft (4),
A tightening band in which the intermediate pipe (8) has a length more than twice the diameter of the fastening bolt (5) . A pair of band main bodies (9, 9) having a U-shaped or V-shaped cross section in the tightening action part (1) and having a semicircular arc shape, and the pair of band main bodies (9, 9) with their ends A pair of connecting means (3, 3) connected in a ring shape, and at least one of the pair of connecting means (3, 3),
A fixed shaft (4) and a movable shaft (7) pivotably supported by two-point support at each end of the band main body (9, 9) connected to each other are provided,
The stationary shaft (4) and the movable shaft (7) each have a through hole (16, 17) at the center thereof,
A fastening bolt (5) for regulating the posture of the stationary shaft (4) and the movable shaft (7) and the sliding track of the movable shaft (7) is inserted through the through holes (16, 17),
An intermediate pipe (8) for pressing the movable shaft (7) toward the stationary shaft (4) is attached to the fastening bolt (5) penetrating the stationary shaft (4) and the movable shaft (7). Screw the fastening nut (6) that presses the mediating pipe (8) toward the movable shaft (7),
The end of the fastening bolt (5) is hooked non-rotatably with respect to the stationary shaft (4),
A tightening band in which the intermediate pipe (8) has a length more than twice the diameter of the fastening bolt (5).

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