JPH03125771A - Window stay - Google Patents

Abstract

PURPOSE: To secure a plurality of initial opening angles by connecting an articulated arm, three links, and friction type pivot bearings, moving a link with an arm to engage a projection end with a stopper, and restricting the opening of the arm. CONSTITUTION: An articulated arm 17 is provided between mounting plates 10, 11 to respectively fit on a window frame and a sash, this is formed from three links 19, 20, 21, and the link 21 is connected with the links 19, 20 through friction type pivot bearings 22a, 22b. When the sash is opened, the links 19, 21 of the articulated arm move together with the arm to engage a projection end 31 with a stopper 30a to restrict the opening. When a locking mechanism mounted to the window frame is released, the link 20 becomes movable up to the full opening position in relation to the mounting plate 11 to fit on the sash. Thus, the locking mechanism is adjustable, a plurality of initial opening angles can be secured, and opening ability of a stay can be improved.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to a window stay.

[Conventional technology]

Four-bar type or sliding shoe window stays are known. A four-piece bar tie basically has a pair of arms connected to each other so that the ends thereof can be rotated in succession, and a pair of attachment plates that are connected to each other have a plate. -For boat fishing, one arm is considerably shorter than the other. The sliding shoe stay has a plate with a mounting plate for slidingly engaging a shoe or a spear on a boat. One end of the other plate is attached directly or via a link to a shoe or barrel. The mounting plates are further connected by arms extending therebetween. With the four-piece stay, the window sash can be held in the open position by controlled friction in the pivot bearing for boat fishing.In the sliding shell/Muyaritsuji stay, this frictional force is used to hold the arm in the open position. Attachment is obtained not only from the pivot bearing attached to the plate, but also by friction between the shoe/carriage and the plate. Although the invention is applicable to both types of stays, For the sake of clarity, the present invention will be described below for the case of a four-bar tie.

A common requirement for four-bar friction stays, especially when used in side-opening projecting windows, is to allow the window sash to open up to 90 degrees to provide sufficient cleaning space around the open sash. This is possible, but the "hinge" end of the longer arm and the "locking side" of the shorter arm
It is necessary to overlap the ends. However, this causes the two friction bearings on the plate of the sash side dam to approach the sash, making it impossible to perform the degree of friction control necessary to secure the sash when the wind is strong.

[Purpose and structure of the invention]

It is common to solve this problem by providing a separate sliding control arm, visible from the inside of the window sill, to hold the sash securely when fully open. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a control device which can be coupled with a window stay and concealed within the window wall when the sash is in the closed position.

It is also a common requirement for windows to have a safety stopper to prevent the sash from initially opening beyond a predetermined distance, typically around 110 mm. This allows the sash to be kept partially open for ventilation without the risk of small children opening it further and falling out of the window. It is also known to be able to provide this safety device by mounting a sliding control arm on the inside of the window sill.

If the wind is very strong, the sash can be blown open by the wind, so such a sash restriction device can also increase safety in such conditions.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a window stay incorporating a restriction device which restricts the degree of opening, but which, when released, allows the window sash to be opened further.

According to a broad feature of the invention, therefore, coupling means connecting the first mounting plate to the second mounting plate are provided at or near each end of the first and second mounting plates, respectively. There is provided a window stay comprising at least one arm rotatably connected to a plate, the articulated arm and the first and second mountings being connected between the plates. ing. Preferably, releasable locking means are provided which otherwise prevent movement of a portion of the articulated arm relative to the mounting plate to which it connects.

The present invention will now be described in detail with reference to the accompanying drawings.

[Example] The stay has a plate 10 for the case with the window frame take-up mechanism and a plate 11 for the case with the sash side dam, and the stay has the arm 12.
and 13. Arm 12 is shorter in accordance with the usual four bar tie construction. Arm 1
The ends of 2 and 13 are connected to the window sill plate by pivot bearings 14. The other end of the arm is connected to the plate by pivot bearings 15 and 16.

The pivot bearings 14, 15 and 16 are preferably of the friction type, for example New Sealant patent 212599/
213772. Similarly, the pivot bearing may be of the type described in my New Sealant patents 212,534 or 230,905t or any of my earlier New Sealant patents.

An articulated arm 1T is also attached between the plates 10 and 11 on the window frame side and the sash side with the dam. For this reason, as shown in the figure, the length of the plate 11 installed on the sash side is longer than the general length when the plate 11 is a four-bar tie. The articulated arm 17 has one end mounted on the window frame side via a pivot bearing 18m (play) 10! tied),
The other end is connected to the plate 11 via a pivot tab. The articulated arm 1T has three links, namely, the window frame side attachment has a link 19 extending from the plate, and the sash side attachment has a link 19 extending from the plate; in this preferred embodiment, the link 19 is also substantially It is formed of a long link 20 and an intermediate link 21 that connects these two links. Pivot bearings 22a and 22b connect intermediate link 21 to links 19 and 20. All of these pivot bearings may be of the friction or non-friction type, with the latter being preferred.

A locking means (described below) is provided to prevent the longer link 20 from moving relative to the sash side plate 11 during normal operation of the stay.

A pin 30 is attached to the intermediate link 21 and forms a stopper in which a special-shaped end 25 of the link 20 (projecting from the pivot 22a) can be held. Similarly, the link 19 is formed with another stopper 30a that engages with the specially shaped portion 31 of the link 21.

Although the window stay components are preferably made of stainless steel, a plate 32 of plastic material is provided to minimize the weight (and therefore cost) of stainless steel. For the window frame side weir υ, the plate 10 is fitted into an appropriately shaped space in the plate 32 as shown in the figure, and the plate 10 and plastic plate 32 are generally installed in combination. The dam on the side of the window frame forms what is considered to be a plate. This composite plate not only improves manufacturing economy, but also provides effective weight support for the lower stay of the projecting side window. This is achieved by the fact that the parts of the arms 12, 13 and 19, which are connected to the plate 10, are in sliding contact with the surface of the plastic plate 320. This is K, pivot bearings 14 and 18a
Since the arm is supported in close proximity to the arm, it is possible to reduce not only the load on the arm but also the load on the pivot bearing. In the closed position, most of the length of the short arm 12 is supported by it, thus providing a rigid support for the sash when in the closed position. The end of the plate 32 on which the short arm 12 overlaps is shaped as shown at 33, and serves as a means for restricting the rotational movement of the arm 120 when closed.

The window stay is attached to the empty space between the satsushi and the window frame,
The positional relationship of the stays when the sash is in the closed position is such that the arm 12 abuts the stopper 33, the arm 13 overlaps the window frame side mounting plate 10 and a part of the arm 12, and the link 21 The arm 17 is folded so that it overlaps the link 1g, and the sash side mounting plate 11
and the link 20 are arranged so that they overlap on the above-mentioned link and arm. Although configured in this way, the stay can be made into an iJs type and can be fitted into a space of about 13 x 32 mm.

When you open the satsushi, it follows the normal 4 bar structure.
The arms 12 and 13 are moved and the links 19 and 21 of the articulated arms are also moved to assume the position shown in FIG. 30a. In this situation, the stay reaches the opening limit allowed by the links 19 and 21. In this way, the degree of opening of the sash is limited. While the stay is open in this way, the long link 20 cannot move relative to the plate 11 with the sash side dam due to the locking mechanism.

If it is necessary to further open the sash, the locking mechanism is released so that the link 2o can be moved relative to the sash side grate 11. This allows the sash to be opened to the fully open position shown in FIG. 2 (stop 30 engages the end of link 20). This is generally the position where the sash is 90' relative to the opening in the window frame.

When the sash is closed, the locking mechanism is automatically relatched, so that the next time the window is opened, its opening is limited in the manner described above.

In the illustrated embodiment of the invention, the locking mechanism is comprised of latching means attached to the sash plate in combination with a latching plate formed as part of the projection 26 of the long link 20. -ru. A slot 27 is formed in the projection 26 in the longitudinal direction, and an opening 29 opens into the slot 27 from the side edge of the long link 2o. A camming surface 28 extends from the edge of link 20 to slot 27, the purpose of which will be explained below.

In the mounting on the sash side shown in FIG. 1, the surface of the plate 11 is the surface that comes into contact with the sash.

For installation on the sash side, the plate 11 has a recess 34 in the longitudinal direction.
Trout is provided. With the sash side dam, a slider 35 is arranged on the other side, that is, the outer surface of the plate 11, and this slider is provided with an elongated arrow part 36.
It is slidably engaged in a slot 37 formed longitudinally and of suitable size in the plate 11. An elongated plate 38 is attached to one end of the protrusion 36 and extends therefrom, the plate having a thickness such that it will be accommodated in the recess 34 when the plate 11 is attached to the sash. It has become. An ear portion 39 projects from the plate 38 at right angles, and a folded portion 40 is provided at its outer end. Slot 39 on the plate with Satsushi side dam
m is formed, and the ear part 39 is inserted into this slot.

Therefore, the folded portion 40 is located on the IIS surface of the sash side attachment plate 11.

An inner hole 41 is formed in the slider 35, and this inner hole 4
The outer end of a spring 42 disposed within 1 engages an upright portion 43 . In this way, since the first spring 42 presses the slider 35, the ear part 39 is 39m long (slider 3
5)).

In FIG. 1, the portion of the ear portion 39 protruding from the slot 39m is fitted into the slot 27 of the link 20, and the rounded link 20 is shaped so that it cannot rotate in the pivot direction. However, when the slider 35 is manually moved toward the free end of the plate 11 (that is, against the biasing force of the spring 42), the ear portion 39 moves along the slot 39. By being located near the opening 29, the link 20 can be rotated around the pivot 18b. Thus, with the locking mechanism in the "unlatched" condition, the window stay can be opened to the fully open position shown in FIG.

Since the slider 35 returns to its normal position due to the biasing force of the spring, it is placed in a position where it comes into contact with the tip of the ear portion 39 (enlarged slot) 39m. When closing the window stay, the cam surface 2B engages the ear 39, but due to the outer shape of the cam surface 28, the slider 35 is pressed against the spring biasing force, so that the link 20 is moved as shown in FIG. In the position shown in υ, the ear 39 refits from the opening 29 into the slot 27, thereby automatically locking the link 20 in the "latched" position. It should be noted that each member of the locking mechanism is formed so as to extend as much as the shearing force is applied to the flange portion 39. As such, it can withstand forces caused by the user attempting to open the window sash beyond the limit opening position.

In a preferred embodiment of the present invention, a cam surface 44 is formed on the link 21 and is located near the ear 39 except when the stay is in the fully closed position, thereby preventing the ear from moving. I have to. As shown in Figure 1, the cam surface 4
4 captures the ear portion 39 within the slot 2T. Therefore, the slider 35 can be operated only when the stay is in the fully closed position. Additionally, the slider 35 or the operating knob (see below) can be provided with a locking device that can be locked in the middle.

FIG. 4 partially shows the window frame F and the window sash S supported by the stay of the present invention. Habo “S”
A lever 46 in the shape of a letter 9 is provided within the sash 5, and a fastener 45 is fastened to the raised portion 36 of the slider 35.

The free end of the lever 46 is inserted into a slot K in the sash S, and preferably an operating knob 48 of a suitable shape is attached to this free end 47. Thereby, when the window is in the closed position, by sliding the knob 48 against the sash S, the slider 35 can be moved to release the ear 39 from the slot 27.

Other types of locking mechanisms may be used, as will be apparent to those skilled in the art. For example, the locking mechanism can be provided on the window sash rather than on the actual stay itself. The mechanism 50 shown in FIGS. 5 and 6 has a mounting plate 51 from which a turret 52 projects. A plunger 53 is slidably mounted on the turret 52 and has a beveled end 54 projecting from the plate 51.

The plunger 53 is connected to a lever 55 such that a specially contoured lower surface 56 of the lever engages a cam surface 57 of the turret. Therefore, when the lever 55 is moved and the plunger is rotated, the surface 56 rides on the cam surface 57, and as a result, the plunger 53 moves in the axial direction, and the protruding end 5
4 retreats.

A lever arm 58 is rotatably attached to the turret 52. One end of lever arm 58 engages lever 55, while the other end engages spring 59 in turret 53.
is engaged with. Therefore, the lever arm 58
Spring biased to the position shown.

When in use, the turret 52 is fitted into the opening of the sash, and the mounting plate 51 is attached to the sash by abutting it (preferably on the same plane). Therefore, when the mechanism 50 is attached to the sash, the plunger 53
An end 54 of the sash projects from the surface of the sash. When the mechanism 50 is thus attached to the sash, the protruding end 54 fits into the appropriate hole formed in the link 20. Therefore, as explained in the above embodiment of the locking mechanism, the link 20 is locked to the plate 11 on the sash side so that it cannot rotate relative to the sash itself.

However, by rotating the arm 55, the plunger 53 is retracted so that the end 54 comes out of the hole in the link 20. This allows the link 20 to rotate relative to the plate 11 when attached to the sash side.

To facilitate rotation of the lever 55, a release mechanism 60 is mounted at a suitable position on the window frame.

A push button 62 provided on the main body 61 of this release mechanism
A plunger (not shown) attached to the protrusion 63
is attached to the engaging portion 64. Therefore, when the button 62 is pushed into the main body part 61, the engaging part 6
4 rotates arm 55, link arm 20 is released. Since the release mechanism 60 is attached to the window frame, the link 20 can only be pivoted by releasing the lock mechanism when the window is in the closed position.

Conventionally, button 62 may be formed as part of a keylockable locking barrel.

A release button 65 extends from the main body 61 in order to prevent the release mechanism from being tampered with by children.

When this release button is pressed, the button 62 is pressed inward and the retaining portion 64 can be moved. Accordingly, the release mechanism 60 is operated by buttons 65 and 62.
It is necessary to operate both at the same time, which is impossible for young children to do boat fishing.

According to a preferred embodiment of the present invention, at least when mounting on the sash side and the window frame side, the friction bearing of the plate is hollowed out, that is, a through hole is formed, so that the fixing screw can be inserted into it. Can be screwed into the sash and window frame. Rounds, windows and /l or defeats with multiple pivot points]
(It is possible to attach it separately without having to make a separate screw hole on the plate)
It is sufficient to insert the K fixing screw. By fitting the fixing screw in this way, installation strength and safety can be increased. However, since the plate 11 with the sash side dam is longer than the normal length, holes 49 may be additionally provided in the case with the sash side dam.

As many as eight friction bearings are used to attach each stay to the window, providing a relatively high level of friction control for every opening required when operating under some weather conditions. It can be obtained at a certain degree. Therefore, it is considered possible to use a stay that is small in relation to the sash width.

With the sash side dam, all the plate bearings are assembled from one side, and with the window frame side dam, all the plate bearings are assembled from the other side, making assembly easier.

Since the articulated arm 17 (pivot) from 18m to the window frame side weir υ is placed along the plate 10, the front and rear dimensions should be the same as the normal four-birds-chee dimensions, despite the presence of the locking mechanism. Can be done. Furthermore, the arm 17 does not interfere with the normal operation of the four-bar linkage. If the arm 1T is forced open too much due to strong winds, the arm 1T should be reinforced to the equivalent of a stay metal.

In a variation of the invention, the locking mechanism may be adjustable to provide multiple initial opening angles.

It is believed that while the articulated arm 17 has a special limiting function, it can also improve the supporting force of the stay. In addition, the arm 17 reduces the force of the important short arm, which is the member receiving the largest load among the four bars, so the stay can be opened more easily.

[Brief explanation of the drawing]

Fig. 1 is an elevational view of the stay according to the present invention when it is in the limited open position, Fig. 2 is an elevational view of the stay in the fully open position, and Fig. 3 is the lower part of the plate with the sash mounting bracket. cross section,
Fig. 4 is a sectional view of a window sash supported on a window frame by a stay according to the present invention, Fig. 5 is an elevational view of a modified example of the locking mechanism, and Fig. 6 is a lock of the type shown in Fig. 5. FIG. 3 is a plan view of the mechanism. 11...play), 12.13...arm, 1
9--Link, 32...Plastic plate, 33...-Stopper, 37...Φ slot), 39
Fist 11 meeting, ears.

Claims (1)

[Claims] Coupling means coupling the first mounting plate to the second mounting plate includes at least one arm pivotally connected at or near each end to the first and second mounting plates, respectively; A window stay characterized in that a type arm is also connected between the first and second mounting plates.