JPH0461149B2 - - Google Patents

Abstract

A latching device comprising a mounting base 10 and a handle 12 pivotally coupled to the base, the handle being movable between first and second positions. A latching plate 15 is pivotally mounted to the base 10 and means 18, 20 and 20a are provided for moving the latching plate, as the handle is moved between its first and second positions, such that the latching plate moves between a latching position, where it preferably projects substantially outwardly from the base, to a non-latching position, where it preferably projects upwardly from the base.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to fasteners for windows, doors and similar closures, and more particularly to fasteners for fastening windows, doors and similar closures in the closed position of an enclosure or frame. This invention relates to a fastener for latching a body or wing member.

TECHNICAL BACKGROUND Window locks are well known, and the most common type currently in use is the so-called "wedge-shaped lock." Wedge-shaped locks of this type were originally used in windows and even for locking doors or similar closures.
Traditionally, wedge-shaped locks have a mounting base. The mounting base is generally attached to the periphery of the closure, and a handle is pivotally coupled to the mounting base. A latching tongue projects from the handle, the tongue cooperating with a striker or wedge plate mounted on the enclosure or frame on which the closure is suspended to provide a wedge stop. I'm starting to do it. Generally, the mounting base is attached to the closure while the seat or wedge plate is attached to the enclosure or frame, although it is contemplated that the mounting base may be attached in the opposite relationship if desired.

The above-mentioned latching devices are generally inexpensive devices, and efforts are made to minimize manufacturing costs, so that the quality of the devices deteriorates, they are easily damaged, and their functionality deteriorates. It was becoming. For example, the handle may come loose, fall under its own weight, or otherwise become inoperable and eventually break.

Further, in addition to the manufacturing problems of the fasteners described above, the basic wedging action has the detrimental effect of applying unnecessary pressure to the closure, particularly aluminum framed windows. For example, undesirably, the wedging action of a window tends to push the window to one side. Also, in order to engage the tongue of the latch with the catch or wedge-shaped plate it is necessary to apply a fairly strong pulling force on the handle, so that pressure is transmitted to the window closure. In the latter case, modern windows require the window seal to be compressed when the window is closed, resulting in a strong pull on the handle.

SUMMARY OF THE INVENTION The object of the invention is to provide a fastener that does not require a separate seat or wedge plate.

This invention particularly relates to a fastener for latching a movable wing member to a latching position of a fixed frame member to which a closing body such as a door plate or a window or a movable wing member is hinged. a mounting base mounted thereon, a handle pivotably mounted to the mounting base via a first axis, and a handle pivotably mounted to the mounting base via a second axis substantially transverse to the first axis; a latching plate removably attached thereto, the handle having an engagement surface engageable with the latching plate by movement about the first axis;
The handle is pivoted about a second axis, and the latching plate protrudes from the mounting base to cover the boundary between the fixed frame member and the movable wing member, thereby attaching the handle to the fixed frame member. a first position in which the movable wing member is held in a latching position; and a second position in which the movable wing member and the fixed frame member are allowed to move relative to each other by preventing the latching plate from covering the boundary portion. It is characterized by the fact that it takes .

The latching plate preferably projects substantially outwardly from the mounting base in the latching position, while projecting substantially upwardly from the mounting base in the unlatching position.

Embodiments Examples of the present invention will be described with reference to the accompanying drawings.

In the drawings, the preferred form of the fastener includes a mounting base 10 and a handle 12. Although the mounting base 10 may be formed from any suitable material, in the preferred embodiment of the invention, the mounting base is injection molded from glass reinforced nylon. This mounting base 10 is provided with a mounting hole 11 through which various mechanical fixing members can be used to fix the mounting base to the closure or to the enclosure or frame from which the closure is suspended. can be installed. Although the handle 12 may be formed from any desired material, in preferred embodiments, the handle is integrally formed, such as by extrusion of an alloy.

The handle 12 has a grip portion of suitable shape and size, so that it can be sufficiently gripped by the user's hand. The handle 12 is pivotally mounted in a bearing position on the mounting base 10 via suitable pivot mounting means 14. For example, in the simplest model, a mechanical fixing material such as a screw is inserted into a hole in the mounting base 10 to attach the handle 1.
It can be mated with the 2nd screw hole. This is particularly the case when the mounting base is made of a plastic material such as glass reinforced nylon. Instead of this, rivets may be used.

A receiving member or latching plate 15 is pivotally mounted to the mounting base 10.
The latch plate 15 may also be made from any suitable material, and in the preferred embodiment is made from a plastic material. Latch plate 1
5 has projections 16 which are engaged in grooves 17 along the longitudinal sides of the mounting base 10. This projection 16 is pivotably mounted in a groove 17 via a pivot pin 15a.
Each pivot pin 15a is integrally formed in the projection 16 and is fitted into a pair of opposed coaxial openings 10a in opposite side walls of the groove 17. When attaching the latching plate 15, the plate 15
is bent transversely to attach each pivot pin 15a to its corresponding aperture 10a and then restored to its normal shape, thus inserting each pin 15a into the aperture 10a.

A protrusion or nib 18 on the handle 12
is formed and the tip 18 is engaged over the engagement surface 20a of the latching plate 15, as shown in FIG. 1 in the installed state of the device of the present invention. FIG. 1 shows a latched or locked position in which the closure body is closed via a fastener, and FIG. 5 shows a latched or unlocked position. Latching with the fasteners described above is achieved by extending the latching plate 15 beyond the edge of the closure or, as the case may be, the enclosure or fixed frame. This is achieved by extending beyond the edges. In this way, even if the plate 15 is hung on something,
Even if the mounting base 10 is not fixed, the closing body can be prevented from opening as long as the mounting base 10 is fixed.
To open the closure, handle 12 is pivoted in the direction of the arrow as shown in FIG. 3 to the position shown in FIG.
is brought into contact with a bearing member 20 that projects upwardly from the top surface 19 of the latch plate 15. The handle 12 is shown schematically in FIG.
When continuously moved toward the 90 DEG projecting position, the latching plate 15 is lifted about the pivot axis to project upwardly from the mounting plate 10. In this way, the latch plate 15 is removed from its position covering the edge portion of the closure or enclosure, and the closure can now be opened.

The mounting base 10 preferably includes a stop member 28 in the form of a projection 29, as shown in FIG.
has. The protrusion 29 engages the tip 18 of the handle 12 when the handle 12 is moved to the unlatched position.
The handle 12 has a first surface 30 for engaging with the handle 12 to limit movement of the handle 12. The second surface portion 31 of the protrusion 29 engages with the base portion 12a of the handle 12 when the handle 12 is in the latching position, thereby restricting the movement of the handle 12 and placing it in a restrained state.

7 to 9, a modification of the invention is shown in which the handle 12 can be locked in the latched position by a lock 21 located in the "throat" 22. The lock 21 is constituted by a housing 23 which engages a throat 22 and is secured in position by a mechanical fastener 24. The lock 21 has a known structure, and allows the body 25 to be operated through the key opening 26. This body 25 controls a lock lever (not shown). The lever projects from the housing 23 and mates with the slot 27 in the mounting base 10 when the handle 12 is in the latched position shown in FIG. In this manner, the handle 12 can be locked into a latched position as desired for the security of the window or similar closure to which the fastener is attached. If higher security is required for this type of fastener, the mounting base 10 preferably has four mounting holes 11.

The fastener of the present invention overcomes various problems commonly associated with wedge locking devices. It is known to those skilled in the art that since the latching plate 15 is pivotally mounted to the mounting base 10, the handle simply moves the latching plate 15 between the outwardly extending position and the upwardly extending position. It is clear that there is no need to pull the handle 12 hard to engage the latch plate 15 as in the wedge lock. Therefore, there is no wedging effect to push the closure too far to one side.

Moreover, the above-described fastener has the advantage of being particularly labor-saving. That is, since the latching plate 15 is a part of the mounting base 10, there is no need to assemble and adjust the handle and the catch or the wedge-shaped plate, and the catch or the wedge-shaped plate can be used as a closure or its surrounding body. It is not necessary to fix the
It is therefore also not necessary to drill or punch out holes for the seats or wedge-shaped plates. Furthermore, the latching plate does not damage either the periphery of the frame or the periphery of the closure. Since the pointed end 18 of the handle 12 only moves across the upper surface 19 of the latching plate 15 and does not perform a wedging action, the latching plate is not easily damaged.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the fastener of the present invention, FIG. 2 is a plan view of the mounting base of the fastener, FIG. 3 is a plan view of the fastener, and FIG. 4 is a side view of the fastener.
Figure 5 is an end view of the fastener shown in Figure 4 viewed from the direction of arrow A, Figure 6 is an end view of the fastener shown in Figure 4 seen from the direction of arrow B with the handle rotated 90 degrees, and Figure 7. 8 is a side view of a modification of the present invention, FIG. 8 is a plan view of the fastener shown in FIG. 7, and FIG. 9 is a plan view of the fastener in the unlatching position similar to FIG. DESCRIPTION OF SYMBOLS 10... Mounting base, 10a... Opening, 11... Mounting hole, 12... Handle, 15... Latching plate, 15a... Pivot pin, 16... Projection, 17
...Groove, 18...Protrusion (point), 19...Top surface,
20... Holding member, 21... Lock, 22... Throat, 23
...Housing, 24...Mechanical fixture, 25...Body part, 26...Key opening, 27...Slot, 28...Stop member, 29...Protrusion, 30...First surface part, 31
...Second surface section.

Claims (1)

[Scope of Claims] 1. A fastener for latching a closing body such as a door plate or a window, or a fixed frame member to which the movable wing member is hinged, at a latching position of a fixed frame member to which the closing body or movable wing member is hinged, comprising: a mounting base mounted to the frame member; a handle pivotally mounted to the mounting base via a first axis; and a handle mounted to the mounting base via a second axis substantially transverse to the first axis. a latching plate pivotally mounted on the handle; the handle having an engagement surface engageable with the latching plate by movement about the first axis; The movable wing member is hung from the fixed frame member by pivoting about the axis and causing the latch plate to protrude from the mounting base to cover the boundary between the fixed frame member and the movable wing member. The first
and a second position in which the movable wing member and the fixed frame member are capable of relative movement by preventing the latching plate from covering the boundary portion. Ingredients. 2. The mounting base has a mounting surface part, and when the latching plate is in the first position, it projects outward from the mounting base in parallel or in the same plane as the mounting surface part, while in the second position. 2. The fastener of claim 1, wherein the fastener projects upwardly from the mounting surface when the fastener is in place. 3. The fastener according to claim 1 or 2, wherein the engaging portion of the handle is a pointed end of the handle. 4. The fastener according to claim 3, wherein the tip of the handle is integrally formed. 5. The fastener according to claim 3 or 4, wherein the latching plate has an engaging surface portion that can be engaged through the pointed end of the handle. 6. The fastener according to claim 5, wherein the latch plate further has a protrusion that is engageable with the pointed end of the handle. 7. The latching plate is formed of a plastic material and has a hinge pin integrally formed to be able to fit into a pair of opposing hinge mounting openings provided in the mounting base, and the latching plate is arranged transversely of the second axis. According to any one of claims 1 to 6, the latching plate can be attached to and removed from the mounting base by making it bendable in the direction and shortening the distance between the ends of both hinge pins. Fasteners as described in . 8. The mounting base includes a stop member that engages an engagement portion of the handle to limit movement of the handle in the first and second positions;
A fastener according to any one of claims 3 to 7. 9. The fastener according to any one of claims 1 to 8, wherein a lock is attached to the handle to restrain the handle in the first position.