JPH0512480U - Rail fastening device for moving body - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a rail fastening device for a moving body. [Structure] A support pin 10 protruding from a moving body 2 moving on a rail 1, and a pin through hole 5 in the support pin 10, respectively.
b, 6b swingably inserted, and the upper combined portion 5a,
6a are overlapped and supported, and lower pressure contact portions 5d and 6d
Is provided with a pair of clamp members 5 and 6 for sandwiching the abdomen 1a of the rail 1, and a bolt member 7 for tightening an intermediate portion of both clamp members 5 and 6, and the pin through holes 5b and 6b are formed by the bolt member 7. Each of the clamp members 5 and 6 is formed in a long hole so that the clamp members 5 and 6 are guided by the support pin 10 and moved to the abdomen 1a side of the rail 1 by tightening. [Effect] The interval between the pair of clamp members can be expanded extremely well.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rail tightening device for a moving body that moves on a rail of a resin film winder, a crane, or the like.

[0002]

[Prior Art]

 A conventional rail tightening device for a moving body is shown in FIG. The rail tightening device 14 of the moving body has a pair of clamp members 15 and 16 arranged opposite to each other and superposed on each other at the upper portion, and is supported by the moving body 2 similar to that shown in FIG. The pin 10 is inserted into the circular pin through holes 15a and 16a provided in the overlapping portion, and the cotter 10a is inserted into the tip end portion of the support pin 10 to be integrally provided on the moving body 2.

Then, bolt through holes 15b and 16b are provided at the intermediate portions of the pair of clamp members 15 and 16 in the vertical direction, and bolts 18 are inserted into the through holes 15b and 16b to tighten the nut 19. The pressure contact parts 15c and 16c at the lower part of 16 are brought close to each other to strongly press the abdomen 1a of the rail 1 to prevent the moving body 2 from moving.

Further, Japanese Utility Model Publication No. 53-10645 discloses a traveling object rail tightening device as shown in FIG. That is, the upper ends of the pair of claws 2 ', 2'are swingably supported by the pin P on the pivotal body m provided at the tip of the tube shaft, and the screw t is rotated to rotate the pair of claws 2'. The abdomen 1a of the rail 1 is strongly pressed or released at the tip of the claws 2 ', 2'.

[0005]

[Problems to be solved by the device]

 In the case of the rail tightening device for a moving body shown in FIG. 5, it is necessary to remove the bolt 18 and the nut 19 when moving the moving body 2, and the management of the nut 19 is particularly complicated. In addition, the pair of clamp members 15 and 16 are supported by the support pin 10 by the circular pin through holes 15a and 16a, and swing by using the support pin 10 as a fulcrum when the bolt 18 and nut 19 are removed. Therefore, it is difficult to secure a large interval so that the intermediate portion of the pair of clamp members 15 and 16 does not hinder the head portion 1b of the rail 1 as the moving body 2 moves. Further, the device shown in FIG. 6 has a complicated structure and is costly.

[0006]

[Means for Solving the Problems]

 The present invention has been made in view of such a conventional technical problem, and has a structure in which a support pin projecting in the extending direction of the rail from a moving body moving on the rail and a pin passing through the support pin, respectively. A pair of clamp members that are inserted through the holes so that they can be swung freely and that are supported by overlapping the upper combination part, and the lower pressure contact part sandwiches the abdomen of the rail, and a bolt member that tightens the middle part of both clamp members. And a through hole for a pin of each clamp member is formed as an elongated hole so that both clamp members are guided by the support pin and moved to the abdomen side of the rail by tightening with the bolt member. This is a rail tightening device for mobile units.

[0007]

[Action]

 When fixing the moving body to the rail using the rail tightening device for the moving body, insert the bolt member from the bolt through hole of one clamp member and tighten the other clamp member. Along with this tightening, the two clamp members gradually move while the pin through holes are set in the support pins, and come close to each other while maintaining the parallel state substantially. Then, the pressure contact portions of both clamp members are pressure contacted with the abdomen of the rail, and the moving body is fixed to the rail.

The operation of releasing the fixing of the moving body to the rail is performed by loosening the bolt member. Due to the loosening of the bolt member, both clamp members move in parallel to each other while they are fixed, and the support pins move relative to the ends of the through holes for both pins. As a result, the pressure contact portion of both clamp members is sufficiently separated from the abdomen of the rail, and the upper combined portion of both clamp members is also separated. Therefore, it is possible to prevent the middle part of both clamp members from interfering with the head part of the rail as the moving body moves.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show an embodiment of the present invention. In the figure, reference numeral 1 is a rail, 1a is an abdomen of the rail 1, 1b is a head of the rail 1, 2 is a movable body, 3 is rotatably supported by a movable body 2, and the rail moves as the movable body 2 travels. It is a wheel rolling over 1. Reference numeral 4 denotes a rail tightening device for a moving body, which is provided with a pair of U-shaped clamp members 5 and 6.

Through holes 5b and 6b for pins are formed in the combined portions 5a and 6a of the upper portions of the respective clamp members 5 and 6, and pressure contact portions 5d and 6d which are in pressure contact with the abdominal portion 1a of the rail 1 are formed in the lower portions thereof. Are formed respectively. The pin through holes 5b and 6b are symmetrical with respect to a vertical line when the pair of clamp members 5 and 6 are combined, and are configured as long holes that gradually incline toward the opposing clamp member 6 or 5 side. Has been done. Then, in a state where the through holes 5b and 6b for both pins are overlapped with each other, one end is fixed to the moving body 2 and the support pin 10 projecting in the extending direction of the rail 1 is inserted. Such a pair of clamp members 5, 6 is prevented from coming off the support pin 10 by the cotter 10a. Then, in the pin through holes 5b and 6b, both clamp members 5 and 6 are moved by being guided by the support pin 10 by the tightening of the bolt member 7 described later, and the pressure contact portions 5d and 6d are respectively moved to the rails. A part of the abdomen 1a overlaps and intersects so as to move not only to the abdomen 1a but also to the head 1b.

Further, a bolt through hole 5c for inserting the bolt member 7 is formed in one clamp member 5 at an opposing position of an intermediate portion of the pair of clamp members 5 and 6 in the vertical direction. The other clamp member 6 is formed with a screw hole 6c which is a female screw portion for screwing. When the two rails 1 are laid in parallel, the one clamp member 5 through which the bolt member 7 is inserted is positioned outside the rail 1 in consideration of workability. As shown in FIG. 3, the upper combination parts 5a and 6a divide the upper part of one clamp member 5 into divided pieces 5a and 5a, and sandwich the convex piece 6a of the other clamp member 6 therebetween. Alternatively, as shown in FIG. 4, the upper combined portions 5a and 6a may be configured such that the upper portions of both clamp members 5 and 6 have half widths.

Next, the operation of the above embodiment will be described. The operation of fixing the moving body 2 to the rail 1 by the rail tightening device 4 for the moving body will be described. In the state before tightening the bolt member 7, as shown in FIG. 2, the pair of clamp members 5, 6 are in a substantially parallel state with the support pin 10 engaging the upper ends of the pin through holes 5b, 6b. .

In this state, the bolt member 7 is inserted from the bolt through hole 5c of the one clamp member 5, and screwed into the screw hole 6c of the other clamp member 6 to be tightened. Along with this tightening, the clamp members 5 and 6 gradually move up while the pin through holes 5b and 6b are set in the support pin 10, and come close to each other while maintaining the parallel state. In other words, as the bolt member 7 is tightened, the support pin 10 moves to the lower part of the inclined pin through holes 5b and 6b, and the clamp members 5 and 6 move in parallel with rising. do. Then, the pressure contact portions 5d, 6d of the clamp members 5, 6 are pressure contacted with the abdomen 1a of the rail 1 to fix the moving body 2 to the rail 1.

Therefore, if the inclination angles of the through holes 5b and 6b for both pins and the distance between the pressure contact portions 5d and 6d and the head portion 1b of the rail 1 are set appropriately, the pressure of the bolt member 7 can be reduced as the bolt member 7 is tightened. The contact portions 5d and 6d can be pressed against the abdomen 1a near the head 1b of the rail 1. By the pressure contact of the pressure contact portions 5d and 6d to the abdomen 1a near the head 1b, the movement of the moving body 2 in the extending direction of the rail 1 as well as in the upward direction is suppressed, so that the fixed state to the rail 1 is firmly fixed. become.

The work of releasing the fixing of the moving body 2 to the rail 1 is performed by screwing the bolt member 7 out of the screw hole 6c. By the loosening of the bolt member 7, both clamp members 5 and 6 are lowered and separated from each other in parallel contrary to the time of fixing, and the support pin 10 is relatively moved to the upper part of the inclined pin through holes 5b and 6b. .. As a result, the pressing portions 5d, 6d of the clamp members 5, 6 are sufficiently separated from the abdomen 1a of the rail 1, and the upper combined portions 5a, 6a of the clamp members 5, 6 are also separated from each other. Therefore, it is possible to prevent the intermediate portions of the clamp members 5 and 6 from interfering with the head portion 1b of the rail 1 as the moving body 2 moves. The bolt member 7 separated from the screw hole 6c does not necessarily have to be pulled out, and the moving body 2 can be moved while being locked in the bolt through hole 5c of the one clamp member 5.

By the way, in the above-mentioned embodiment, the screw hole 6c which is the female screw portion is threaded on the other clamp member 6 itself, but the nut member which is a separate member is fixed to the clamp member 6 and screwed. The hole 6c may be formed, and the screw hole 6c may be formed by a nut member not fixed to the clamp member 6. Further, the pin through holes 5b and 6b of both clamp members 5 and 6 are provided horizontally or in a downward slanting direction outwardly contrary to the above-mentioned embodiment, and the screw of the other clamp member 6 of the bolt member 7 It is not impossible to increase the distance between the clamp members 5 and 6 due to the screwing out from the hole 6c. However, in that case, when the clamp members 5 and 6 are separated from each other, not only the self-weight of the clamp members 5 and 6 does not promote the separation, but also when the bolt member 7 is tightened, the press contact portions 5d and 6d are raised. Cannot be pressed against the abdomen 1a near the head 1b of the rail 1.

[0018]

[Effect of the device]

 As can be understood from the above description, according to the present invention, the following effects can be obtained. The pair of clamp members can be made larger by forming the through holes for the pins in the upper combining portion of the pair of clamp members, through which the support pins integrated with the moving body are inserted, to be long holes. However, the distance between the pair of clamp members when releasing the fixation of the moving body to the rail has been expanded very well. In addition, it is possible to integrally provide the female screw portion on the other clamp member, which enables the work of fixing or releasing the moving body to the rail without attaching or detaching the female screw portion. Is significantly simplified.

[Brief description of drawings]

FIG. 1 is a diagram showing a tightened state of a rail tightening device for a moving body according to an embodiment of the present invention.

FIG. 2 is a view similarly showing a released state.

FIG. 3 is a view showing a state in which a rail tightening device for a moving body is also attached to the moving body.

FIG. 4 is a view showing another example of the structure of the upper combination portion.

FIG. 5 is a view showing a conventional rail tightening device for a moving body.

FIG. 6 is a view showing another conventional rail tightening device for a moving body.

[Explanation of symbols]

1: rail, 1a: abdomen, 1b: head, 2: moving body,
3: wheels, 5: one clamp member, 5a: combination part, 5b: pin through hole (long hole), 5c: bolt through hole,
5d: pressure contact part, 6: other clamp member, 6a: combination part, 6b: pin through hole (long hole), 6c: screw hole (female screw part), 6d: pressure contact part, 7: bolt member, 10: Support pins, 10a: Kotter.

Claims (1)

[Scope of utility model registration request] 1. A support pin projecting in a direction in which the rail extends from a moving body that moves on a rail, and a pin through hole swingably inserted into each of the support pins to support an upper combination portion by superimposing it. The lower pressure contact portion includes a pair of clamp members that sandwich the abdomen of the rail, and a bolt member that clamps an intermediate portion of both clamp members, and a pin through hole of each clamp member is used for tightening by the bolt member. Therefore, the rail tightening device for the movable body is characterized in that each of the clamp members is formed in an elongated hole so that the two clamp members are guided by the support pins and moved to the abdomen side of the rail.