JPS60208576A - Window lock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved operating mechanism for window openings for use with casement windows, which can be used with either right-handed or left-handed casement windows.

Casement window locks are disclosed in commonly owned U.S. Pat.
, Ojri, No. 27 and No. 1A, ≠ 22. rio issue. This type of window sash has a cam mounted within the casing which is moved as a whole and is placed in a rotational motion behind a clasp supported by the window sash. When moved to the locked position, the cam closes the clasp and cam tightly [
Pull to. In US Patent No. 2.2, the cam is moved directly by the handle.

In casement windows, which are usually mounted on the vertical portion of the window frame, it is conventional practice to bring the operating handle to a lower position when the window is "locked."

Since casement windows are on both the right and left hand with respect to the side of the window on which the window's superimposed pivot axis is located, the window shown in U.S. Tokkan No. 10, The handle has a structure that allows the teller handle to be associated with either a right- or left-hand casement, and the handle always extends downwardly when the cam is in the active locking position.

A considerable amount of force is required to close a window tightly, and an improvement would be to reduce the force required to operate the teller handle. This was accomplished in the teller of U.S. Pat. Ta.

The main features of the invention are to provide a casement window window that has a simplified design that provides mechanical advantages in moving the window window to the locking position, and that provides good locking action. It is.

The object of the present invention is to provide a hinged lock having a hinge cam which is used to engage a catch supported on a window sash and pull the window tightly closed, wherein a handle is provided for moving the cam; The drive device between the handle and the cam is
It is an object of the present invention to provide a casement window rotary that includes a gearing system that provides mechanical convenience during movement of the cam by the handle.

A further object of the invention is that the right-hand window is capable of being attached to a two' window frame and has a clasp-receiving opening in a window to be used in conjunction with either a left-hand casement window;
a case having a clasp that can be attached to the sash at one of λ positions offset from the center of the clasp-receiving opening; a cam disposed within the case, having a pair of locking surfaces positioned alternately in seven positions for engagement with the locking surfaces; a pivot actuation member to which the cam is rotatably mounted; a sector gear along an edge of the actuation member; a handle supporting the gear in engagement with the sector gear and coplanar with the sector ear; and a handle in which rotation of the handle rotates the actuating member and causes the cam to act.

The window hook 10 is a clasp 1 attached to the window sack 15.
2 and wI#lj are shown attached to the vertical portion 11 of the window frame. When the movable handle 20 is installed in association with either the left-hand window or the right-hand window,
It has a locking position extending downwardly as seen in FIG.

The window has an enclosing case 21 secured to the vertical portion 11 of the window frame by a pair of screws 22 and 23.

A backing plate 30 is attached to the casing 21 in any suitable manner at a number of locations.

The clasp 12 is formed from a generally flat material and is generally U-shaped with a 7-way bolt 35 secured to the window sash by screws 36. A second flange 37 extends from the coupling portion 38. One side of the case 21 has portions 40 and 41 with ends spaced apart to provide a clasp receiving opening of considerable height.

A triangular shaped force A45 is mounted in the case so that it can move to either of two locking positions, one locking position is shown in Figures 2-1) and the other locking position. The location is shown in FIG. For the illustrated mounting O, this cam is in the unlocked position. A more complete description of the use of countersocks in left- and right-hand mounts is contained in U.S. Pat. No. 210, the disclosure of which is incorporated herein by reference. It will be incorporated into The cam 45 has a pair of rounded edges 46.
and 47, with a pair of locking surfaces 48 and 49 at corner 46.
and extends from 47.

When the teller hook is attached to the window as shown in FIG. 3, the cam 45 is positioned in the unlocked position and the sixth
As shown in the figure. In moving the cam to the locking position of FIGS. 3 and 5, the cam is moved and rotated entirely so as to move through an intermediate center position positioned behind the catch flange 37, even if the sash is fully Even if it is not closed, the cam moves into the locking position shown in FIG. Contact the metal 2 flange.

The operative connection between the cam and the handle 20 allows the cam 4 to
5 is imparted with motion and this joint provides a mechanical advantage;
This minimizes the force required to move the cam and catch to the final locked position. Handle 20T/
i, rotatably mounted within the casing by a cylindrical portion 60 which is rotatably fitted into an opening 61 in the case;

The inner end of the circumferential portion 60 has a square end 62 such that one gear 63 rotates with one handle.
It is caulked. 200 rotations of the handle causes rotation of gear 63, which imparts rotation to actuating member 65, which is rotatably attached to pace plate 30 on a pivot line formed by rivet 66. The cam 45 is rotated so that the cam 45 rotates around an axis spaced from the pivot axis of the actuating member.
5 is rotatably attached to the actuating member 65. The cam, 45, has a cylindrical square portion 70 fitted within the opening in the actuating member and, on the opposite side of the actuating member, has a gear 71 fixed to the cam. The spacer pin (Figure 3) is
It has a head 72 and a knurled shank 73 which locks the force, arm 45, and gear 71' together. Gear 71 meshes with sector gear 74 that extends along the arcuate portion of pace plate 30 .

The actuating member 65 is rotated by rotation of the handle via a drive which provides a mechanical advantage in moving the cam to the locked position. This coupling device includes a gear 63 and an actuating member 6
and a gear 75 extending along the edge of 5. These gears are in a common plane), opposite the axis of rotation of the cam 45,
They engage on the sides of the pivot line formed by the rivet 66.

When the teller lock is in the unlocked position, the structure is positioned as shown in FIG. 6, with the handle 2° extending upwardly. Rotation of the handle counterclockwise toward the locked position of FIGS. The rounded corner of the cam 45 engages behind the catch flange 37 and moves the catch inside the case 21. This movement of the cam 74 is supported on the actuating member 65.
The rotation caused by the engagement with the other parts will also be punished. In the final movement of the cam to the position shown in FIG. 5, the locking surface 49 locks into the catch flange.

It engages with the rear side of 37.

With the teller tool disclosed herein, it is possible to have a single structure with no hand-held blades, and therefore, it is possible.

, and can be used on either the left or right hand window.''
and the handle extends downward when the teller handle is in the locked position. This operation uses gears that are supported and intermesh with the handle and the actuating member.

The mechanical advantages achieved by the locking mechanism make it easier to lock the window and minimize the force required to lock the window.

[Brief explanation of the drawing]

:/::72:::Nini:Ninii. . 766° FIG. 3 is a plan view of the lock associated with the window shown in cross section. Figure ≠ is an enlarged vertical cross-sectional view taken along line 4--4 in Figure 3 in the direction of the arrow. FIG. 5 is a plan sectional view taken in the direction of the arrow along 5-5M in FIG. FIG. 6 is a plan view similar to FIG. 5 showing the teller in the unlocked position. 10... counter, 12... clasp, 21... case, 20... handle, 45... cam, 46.47... rounded corner, -48, 49... Q shoes 2 surface.

Claims (1)

Claims: f. In a teller window that can be used in conjunction with either a right-handed or a left-handed casement window: a case that can be attached to a window frame, has a clasp-receiving opening, and has a clasp that can be attached to a sash in one of two positions offset from the center of the clasp-receiving opening; a generally triangular cam having a pair of rounded corners and a locking surface extending from the corners, the cam having λ different locking positions at the center of the clasp-receiving opening and opposite the center position; a generally triangular cam having; a pivot actuating member having means for rotatably mounting the cam on the pivot actuating member; a handle; and said handle and actuating member so as to provide mechanical convenience during movement of the actuating member by the handle. a gear drive coupling provided between the cam and the locking position; a means for rotating the cam to move the cam toward the clasp within the case and bring the locking surface into contact with the clasp; 2. The gear drive coupling includes a sector gear extending along an edge of the actuating member and a gear fixed to the handle in mesh with the sector gear and in coplanar relationship with the actuating member. The counter described in Section 1. The case has an opening, and the handle has a projection with a cylindrical portion positioned within the opening for rotatably mounting the handle, and a square end for mounting the gear. Particularly, a case; a clasp separate from the case; a clasp for locking the clasp to the case by pulling the clasp toward the case; a cam engageable with; a member mounted to said case for pivoting movement about a pivot axis, said pivoting movement of said member causing said member to move into and out of a position adjacent said fastener; a member having means for forming a movable second axis; a means for mounting said cam on said part i for rotation about said λ-th axis; and: pivoting of said member and general movement of said cam. a device operable to rotate a cam about the second axis into engagement with the clasp; a handle rotatable about a third axis offset from the pivot axis; A teller tool comprising: a sector ear formed on an edge of a member; and a mourning gear fixed to the handle in engagement with the sector gear and coplanar with the member. a clasp; said casing having an opening for receiving a rotatable handle and a clasp for moving a cam within the casing into a locked relationship with the clasp; a pivoting movement about a pivot axis; an actuating member mounted in the case so as to rotate the actuating member; and the cam being mounted to the actuating member at a distance from the pivot axis so as to rotate about the two axes of the round part; a device for causing rotation of the cam as the actuating member pivots and moves into the saddle; a gear drive disposed between the handle and the actuating member for providing mechanical convenience during movement of the actuating member; 4E, the second
a gear drive device comprising: a g/df gear rotatable together with the steering wheel on the periphery of the axis arranged on the side of the pivot axis opposite the axis; and a sector gear on the actuating member meshing with the first gear; Baroque encompasses. B. a clasp; a case having an opening for receiving the clasp and a rotatable handle for moving a cam within the case into a locked relationship with the clasp; two locking positions on opposite sides of a central location; an actuating member mounted in the case for pivoting movement about a pivot axis between:
the cam being mounted on the actuating member for rotation around an axis; a device for causing rotation of the cam as the cam moves with the actuating member during a pivoting movement of the actuating member; The cam has a generally triangular shape with a pair of locking segments, one of which is alternately usable in each of the locking positions, and the overall movement of the cam is dependent on the locking segments. 7 behind the clasp in the central position of the actuating member, and finally the continuous movement of the actuating member in the direction of forcing the clasp At-case Q as a combination of the cam and the rotation and the overall movement of the cam. a gear drive disposed between the handle and the actuating member, the gear drive providing mechanical convenience in the movement of the actuating member and disposed on the side of the pivot axis opposite the second axis; a gear drive device comprising: a first gear rotatable with a rotation angle of 70 degrees around a circumferential axis; and a gear drive device mounted on the actuating member so as to mesh with the first gear;