Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Panel hangers – travelers and/or tracks – Sliding shoe
Reexamination Certificate
1999-12-14
2001-12-04
Knight, Anthony (Department: 3626)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Panel hangers, travelers and/or tracks
Sliding shoe
C016S08700B
Reexamination Certificate
active
06324726
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a guide skid for a gate drive which is accommodated sliding in a C-profile, with two lateral openings extending over its length to accommodate a drive cord, with a locking element for the coupling to and disconnecting from the drive cord and with a connecting element for the gate to be moved.
With known gate drives the guide skids are accommodated sliding in a C-profile. They have two lateral openings extending over their length to accommodate a drive cord, e.g. a drive chain or drive belt. By means of an insertable locking element the guide skids can be coupled to the drive chain or drive belt, and when required can be disconnected from same by means of a handle. When installed, a fastening eye projects from the underside of the guide skid downwards beyond the delimiting surface of the C-profile. An actuating rod for the gate is attached to this fastening eye. This asymmetrical construction of the guide skid has several disadvantages. Thus, because of the asymmetrical construction, the handling of the guide skids during storage and transport is inconvenient. From the strength point of view, the projecting fastening eye furthermore constitutes a critical component.
SUMMARY OF THE INVENTION
It is the object of the invention to improve the guide skid of the indicated type in such a way that it has a compact construction and, whilst made of comparatively few parts, reliably performs all functions. According to the invention this objective is achieved, proceeding from a guide skid which is accommodated sliding in a C-profile, with two lateral openings extending over its length to accommodate a drive cord, with a locking element for the coupling to and disconnecting from the drive cord and with a connecting element for the gate to be moved, by the features of the guide skid having a symmetrical outline and when installed has no parts projecting past the C-profile, and with the guide skid being provided on one face thereof with a continuous slot which is bridged by a bolt which forms the connecting element. According to same, the guide skid has a symmetrical outline and when installed has no parts projecting beyond the C-profile. In addition, the guide skid is provided on one face with a continuous slot which extends parallel to the side walls. The slot is bridged by a bolt which forms the connecting element. The bolt is, therefore, securely anchored in the housing of the guide skid, which increases the stability of the fastening point formed by the bolt.
According to the preferred embodiment, the bolt can be put from the outside into a slot in the form of a U-profile and can be fixed into position at its ends by fastening screws. As a result, it will be easy to put in the bolt when the guide skid is already installed in the C-profile.
Preferably, the skid consists essentially of two moulded plastic parts which can be plugged onto one another and joined together in a detachable manner.
The locking element arranged inside the skid consists of a shiftable locking bar which is arranged moving transversely to the direction of movement of the guide skid. Preferably, a guide lug is arranged, e.g. moulded onto the locking bar, which co-operates with a slide guide provided on a spring-loaded shifting element arranged movable in the guide skid. The slide guide of the shifting element can be actuated against the force of the spring by means of a handle in order to couple and disconnect the locking bar. The handle can be guided out of the slot in the middle of the guide skid. It can, therefore, be moved downwards out of the slot in any installation position of the guide skid.
To ensure an accurate adaptation to various heights of the C-profile, at least part of the surface of the guide skid can be covered by an adapter which is fastened to the guide skid in a detachable manner. Separate protection is claimed for this problem solution.
REFERENCES:
patent: 1357407 (1920-11-01), Lang
patent: 5222403 (1993-06-01), Angelini et al.
patent: 8506669.96 (1985-08-01), None
patent: 35 08 174-A1 (1986-11-01), None
patent: 8710940.6 (1987-12-01), None
patent: 299 489-A1 (1989-01-01), None
patent: 37 26 685-A1 (1989-02-01), None
patent: 299 489-A1 (1989-01-01), None
patent: 405-248139-A (1993-09-01), None
Dilworth & Barrese LLP
Knight Anthony
Marantec Antriebs-und Steuerungstechnik GmbH & Co. KG
Rodriguez Ruth C.
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