DE66799C - Device for releasing loaded inhibiting devices - Google Patents

Description

IMPERIAL

PATENT OFFICE

The invention described below relates to those transmissions which, initially, moved Partly attached and driven by them, in the event of an impermissible increase the speed of these parts one loaded with weight or spring pressure Remove the support from the inhibitor so that the inhibitor is engaged and moderate the speed or cancel the motion altogether. Transmission of this type are preferably found on the conveyor racks of elevators for engaging the safety gear and on elevator machines for applying brakes.

The purpose of the invention is to provide a device that is as simple as possible and at the same time safe that kind of sharp.

According to the invention it is formed from a movable part which can its corresponding connection with a moving part a back and forth A pendulum attached to this reciprocating part hangs and has a pawl-shaped beak, and from a sliding adsector, which carries the support of the loaded braking device and in the normal position itself resting on a support. As soon as the swing of the pendulum, which as a result of its inertia swings around its floating point of suspension, reached a certain level, the latch engages in the sliding sector and knocks it over. This loses the burdened Inhibiting device their support and occurs under the action of their load in effectiveness.

The accompanying drawing shows the implementation of the invention on a conveyor frame and at Use of a straight slide, which is supported by one on the conveyor frame guide rolling friction wheel is driven, namely:

Fig. Ι a front view of the device,

Fig. 2 is a vertical cross section of the same,

3 shows a basic outline and

4 shows a section according to XX, FIG. 2.

As can be seen, a horizontal or almost horizontal dovetail bar c is attached to the jaw b, which is fastened to the conveyor frame α by means of bolts and nuts, on which a slider d can be displaced. A friction wheel f is provided to move this slider d to and fro, "the pivot of which is seated on the prism f ' ^{1, which} is constantly pushed outwards by the pressure of the helical spring f ^l g · pressed and set in rotation, the crank pin / ^{3 of} the wheel / working in the crank loop d ¹ of the arm d ' ² connected to the slider d and thereby sets the slider in reciprocating motion Slider d is set in reciprocating motion as a result of the movement of the conveyor frame, can be modified in many ways, and instead of the slider being guided, an arm swinging about an axis could also be provided.

The slider d carries the pivot d ^s

for the pendulum h , which carries an adjustable weight h ² on a lower arm h ¹ directed towards one side and has a pawl-shaped beak h ^s at the top on the other side. For this beak h ^{3 there} is a stop screw rf ⁴ on the slider d , by means of which the swinging of the pendulum is prevented during the movement of the slider towards the friction wheel f. The tip of the beak h ³ therefore always moves in a straight line to the right. When the slider d is then moved back in the direction of wheel f , the pendulum h, due to its inertia, swings in the direction of the arrow, so that the tip of the beak h ^{3 is} gradually lowered and the path to its starting position along a flat one Curve runs through. The greater the speed of the slide d , which is itself a function of that of the conveyor frame, the greater the swing of the pendulum h and the more downwardly the path along which the tip of the beak h ³ returns to its rest position . When the curvature of this path reaches a certain extent, the tip of the beak h ^s comes into engagement with the teeth of a sliding adsector j arranged underneath, which rests on a stop b ^l attached to the jaw b and whose pin j ^{s is} the support for the loaded Safety gear forms. For the second symmetrical part of the safety gear, the support j ³ ' is attached to a disk j' ² : wedged onto the shaft j ¹ by the sector j. This disk j ' ² can, as shown, be made as a chain wheel in order to attach an endless chain to it. which allows the safety gear to be engaged by hand. For the same purpose shaft could carry a j ^l lever also.

The adjustable weight h ² makes it possible to make the device more or less sensitive, namely the further one puts this weight on the arm /? ' pushes out, the greater the speed must assume the slide d to cause a pendulum swing.

Should the device described for engaging the loaded. Serving the braking device of an engine, the movement of the reciprocating part is derived from a rotating shaft and the pin j ^s attached to the sector / supports the loaded brake lever.

Claims (2)

Patent claims: i ,. A device for releasing loaded inhibiting devices, characterized by a piece d that moves back and forth at proportional speed as a result of a corresponding connection with the part to be inhibited, a pendulum h with a pawl-shaped arm h ^s suspended from this piece , and a pendulum arranged in the plane of oscillation of the pendulum Ratchet wheel _ /> which rests on a stop in the rest position and carries the finger to trigger the loaded inhibiting device. 2. In the case of the under i. specified device in connection with the conveyor frame of an elevator the drive of the reciprocating piece d by means of a friction wheel /, which is pressed by weight or spring pressure on a rail g of the conveyor frame guide and is provided with a crank pin that the movement on the piece d transmits. For this purpose ι sheet of drawings.