Triggering unit for actuating an elevator braking device

A triggering unit for actuating an elevator braking device, comprising:

• a triggering base body which can be mounted on an elevator car,
• a trigger,
• a contact device, and
• a coupling link via which the triggering unit can be connected to an elevator braking device, wherein the triggering unit is designed as an assembly which is completely separate from the elevator braking device and, in an intended mounted state, the triggering unit is connected to the elevator braking device exclusively via the coupling link,
• wherein the contact device comprises a swivel lever and at least two contact elements, the swivel lever being pivotably anchored on one side of a guide rail, and the swivel lever, when the triggering unit is installed as intended, bearing a first contact element in a region between its anchoring and the guide rail, which first contact element forms a first contact region for contacting the guide rail, wherein the first contact element is spaced from the guide rail before being triggered and, when triggered, makes contact with the guide rail and the swivel lever projects past the rail as far as the other side of the rail and there carries at least one further, second contact element which forms a second contact region for making contact with the guide rail, wherein the first and the second contact elements are arranged on the swivel lever in such a manner that the swivel lever automatically pulls itself against the guide rail under the influence of the forces occurring between the contact elements and the guide rail in the triggered state, and the swivel lever is anchored to the triggering base body in such a way that, in the course of its pulling itself automatically against the guide rail, the swivel lever executes a movement which generates tension or pressure at the coupling link, so that the coupling link actuates the elevator braking device, wherein the swivel lever is connected to the coupling link at or in an immediate vicinity of its pivotally anchored end via a common swivel pin.

A triggering unit for actuating an elevator braking device, comprising:

• a triggering base body which can be mounted on an elevator car,
• a trigger,
• a contact device, and
• a coupling link via which the triggering unit can be connected to an elevator braking device, wherein the triggering unit is designed as an assembly which is completely separate from the elevator braking device and, in an intended mounted state, the triggering unit is connected to the elevator braking device exclusively via the coupling link,
• wherein the contact device comprises a swivel lever and at least two contact elements, the swivel lever being pivotably anchored on one side of a guide rail, and the swivel lever, when the triggering unit is installed as intended, bearing a first contact element in a region between its anchoring and the guide rail, which first contact element forms a first contact region for contacting the guide rail, wherein the first contact element is spaced from the guide rail before being triggered and, when triggered, makes contact with the guide rail and the swivel lever projects past the rail as far as the other side of the rail and there carries at least one further, second contact element which forms a second contact region for making contact with the guide rail, wherein the first and the second contact elements are arranged on the swivel lever in such a manner that the swivel lever automatically pulls itself against the guide rail under the influence of the forces occurring between the contact elements and the guide rail in the triggered state, and the swivel lever is anchored to the triggering base body in such a way that, in the course of its pulling itself automatically against the guide rail, the swivel lever executes a movement which generates tension or pressure at the coupling link, so that the coupling link actuates the elevator braking device, wherein the triggering unit comprises a transversal slide which can be moved against the action of at least one spring, or against the action of two springs acting in opposite directions, and optionally against the action of pure gravity, along a guide of the triggering unit, wherein the slide carries a swivel pin to which the swivel lever is pivotably anchored with its one end and wherein also the coupling link is anchored to the slide.

A triggering unit for actuating an elevator braking device, comprising:

• a triggering base body which can be mounted on an elevator car,
• a trigger,
• a contact device, and
• a coupling link via which the triggering unit can be connected to an elevator braking device, wherein the triggering unit is designed as an assembly which is completely separate from the elevator braking device and, in an intended mounted state, the triggering unit is connected to the elevator braking device exclusively via the coupling link,
• wherein the contact device comprises a swivel lever and at least two contact elements, the swivel lever being pivotably anchored on one side of a guide rail, and the swivel lever, when the triggering unit is installed as intended, bearing a first contact element in a region between its anchoring and the guide rail, which first contact element forms a first contact region for contacting the guide rail, wherein the first contact element is spaced from the guide rail before being triggered and, when triggered, makes contact with the guide rail and the swivel lever projects past the rail as far as the other side of the rail and there carries at least one further, second contact element which forms a second contact region for making contact with the guide rail, wherein the first and the second contact elements are arranged on the swivel lever in such a manner that the swivel lever automatically pulls itself against the guide rail under the influence of the forces occurring between the contact elements and the guide rail in the triggered state, and the swivel lever is anchored to the triggering base body in such a way that, in the course of its pulling itself automatically against the guide rail, the swivel lever executes a movement which generates tension or pressure at the coupling link, so that the coupling link actuates the elevator braking device, wherein at least the contact elements have a coating of a plastic which has a Shore hardness A of 55 to 80 and consists of polyurethane.

A triggering unit for actuating an elevator braking device, comprising:

• a triggering base body which can be mounted on an elevator car,
• a trigger,
• a contact device, and
• a coupling link via which the triggering unit can be connected to an elevator braking device, wherein the triggering unit is designed as an assembly which is completely separate from the elevator braking device and, in an intended mounted state, the triggering unit is connected to the elevator braking device exclusively via the coupling link,
• wherein the contact device comprises a swivel lever and at least two contact elements, the swivel lever being pivotably anchored on one side of a guide rail, and the swivel lever, when the triggering unit is installed as intended, bearing a first contact element in a region between its anchoring and the guide rail, which first contact element forms a first contact region for contacting the guide rail, wherein the first contact element is spaced from the guide rail before being triggered and, when triggered, makes contact with the guide rail and the swivel lever projects past the rail as far as the other side of the rail and there carries at least one further, second contact element which forms a second contact region for making contact with the guide rail, wherein the first and the second contact elements are arranged on the swivel lever in such a manner that the swivel lever automatically pulls itself against the guide rail under the influence of the forces occurring between the contact elements and the guide rail in the triggered state, and the swivel lever is anchored to the triggering base body in such a way that, in the course of its pulling itself automatically against the guide rail, the swivel lever executes a movement which generates tension or pressure at the coupling link, so that the coupling link actuates the elevator braking device, wherein an adjustable stop, which is adjustable in its position in a direction parallel to the guide rail, is provided, against which the swivel lever, with one of its contact elements, comes to rest when a relative movement between the swivel lever and the triggering base body has progressed to such an extent that the coupling link has irreversibly triggered the elevator braking device, so that a clamping or self-locking between the swivel lever and the guide rail is triggered again.