JPH0321090U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing a freely openable/closable hanging device according to an embodiment of the present invention, Fig. 2 is an enlarged plan view showing a guide plate in the above device, and Figs. 3 to 5 are operations of the above device. FIG. 3 is a plan view showing the state before the hanging operation, FIG. 4 is a plan view showing the state in the middle of the hanging operation, and FIG. 5 is a plan view showing the state during the hanging operation. The plan view shown in FIG. 6 is a diagram for explaining means for solving the problem. DESCRIPTION OF SYMBOLS 1... Pantograph-shaped link, 10, 11... Arm, 12, 13... Rotating shaft, 14... Hook part (work gripping part), 2... Block (work), 3... Support pin, 4... Guide pin, 5... Guide plate ,5
2... Long hole, 53... First swing fulcrum position, 54... Second
Swinging fulcrum position, 55...Locking part, 56...Protrusion part.

Claims (1)

[Claims for Utility Model Registration] The ends of a pair of upper and lower arms 10 and 11 are rotatably connected to each other, and the upper ends of both upper arms 10 and the approximately central portions of both lower arms 11 are connected to each other. The pantograph-like link 1 is formed by supporting each other on rotating shafts 12 and 13, and both lower arms 11
In the hanging device formed with a workpiece gripping part 14 for pinching or pressing a workpiece at the lower end thereof, a support pin 3 provided on the upper rotating shaft 12 and a guide pin provided on the lower rotating shaft 13. 4
It is formed into a substantially inverted L shape consisting of a horizontal portion 50 and a vertical portion 51, and a long hole 52 extending in a substantially horizontal direction is formed in the horizontal portion 50, and the support pin 3 is accommodated in the long hole 52. A locking portion 55 is formed on the vertical portion 51 to lock the guide pin 4, and is slidably supported on the support pin 3. a guide plate 5 formed with a protrusion 56 for sliding in the elongated hole 52; the support pin 3 is located at a first swing fulcrum position 53 on the vertical portion 51 side of the elongated hole 52; In addition, by the guide pin 4 being locked with the locking part 55, the workpiece gripping part 14 is held in an open state, while the dead weight of the pantograph-shaped link 1 from the workpiece gripping part 14 holding state is When the upper arm 10 swings down to a predetermined state with respect to the lower arm 11, the guide pin 4 and the locking portion 55 are unlocked, and the guide pin 4 is The support pin 3 is moved into sliding contact with the protrusion 56 and moves the elongated hole 52 to the first swing fulcrum position 53.
At the same time, the guide plate 5 is swung to the second fulcrum position 54 on the other end side, thereby preventing the guide pin 4 from locking with the locking portion 55. The work gripping section 14 can be opened and closed, and on the other hand, when the pantograph-shaped link 1 in the extended state contracts due to its own weight, the guide pin 4 comes into contact with the protrusion 56 in the predetermined contracted state of the link 1, thereby supporting the support. The pin 3 slides through the elongated hole 52 from the second swing fulcrum position 54 to the first swing fulcrum position 53, whereby the guide plate 5 swings back and the guide pin 4 returns to the engagement position. A self-weight opening/closing type hanging device characterized by being locked with a stop portion 55.