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Why are hardware accessories so important to windows and doors?

Instruction:
For many friends who do not yet know the industry of door and window hardware, the first step is to know is what hardware accessories each door and each window have, their common names, functions and using methods.

What are the door and window hardware accessories? The development of door and window hardware accessories is closely related to the evolution of window types and window opening methods. The reason for this evolution comes from people's understanding of the function of the window and their consideration of further improvement of the convenience of the window. Let me talk about something about door and window hardware accessories.

window and door hardware


  • Terms related to door and window hardware


1. Handle for transmission

An operating device for driving transmission locker and multi-point locker to realize the opening and closing of doors and windows. 

2. Spin handle

A device for opening and closing and locking the window by turning the handle.

3. Hinge

A device that connects the door/window frame with the door/window sash to support, open and close the door and the window..

4. Friction stay

A multi-bar device for connecting window frames and sashes, supporting sashes, and realizing opening and closing.

5. Drive lock

A drive link with locking points that controls the locking and opening of doors and windows.

6. Limit stay

A device capable of fixing opened sash in a preset position.

7. Flush bolt

A device for locating and locking doors and windows.

8. Multi-point lock

A device for implementing multi-point locking functions of sliding doors and windows.

9. Roller

A device capable of bearing the weight of doors and windows and transmitting their gravity to the frame; and capable of reciprocating doors and windows along the track of the frame through its own rolling under the action of external forces.

10.  Single-point lock

A device for sliding doors and windows to realize single-position locking through operation.

11. Movement space

The necessary space for door and window hardware to realize their functions.

12. Locking part

It is installed on the frame and the sash respectively, and when the interaction occurs, it can prevent the sash from moving towards the opening direction.

13. Slot for hardware installation

The slot is used to install the drive lock, the U-shaped part is called U slot, and the C-shaped part C slot.

14. Basic hardware configuration

The minimum hardware configuration required to meet the standard requirements of performance and functional requirements of doors and windows.

15. Operating part

A part controlling the opening and closing functions of doors and windows under the action of external forces.

16. Bearing part

A part connecting the frame and the sash, and bearing the opening load of doors and windows.

17. Drive locking part

A part that transmits the operating force and realizes the locking of the frame and the sash.

18. Auxiliary parts

door handle





  • Hardware accessories for different window type

1. Sliding window hardware accessories 

As a common window type in daily life, sliding window is easy to operate and does not take up space.

Hardware accessories:

The guide track of aluminum alloy or upvc window is directly formed on the window frame profile, and the roller system is fixed at the bottom of the window sash. Whether the sliding window can slide freely depends not only on the quality of the roller system, but also on the flatness and processing accuracy of the profile and the installation accuracy of the window frame. The wear and tear by accumulated dust on the tracks and rollers can also affect the opening and closing function of sliding windows. The lock of a sliding window is usually a latch lock. Due to the low installation accuracy and the accumulation of dust, the latch lock will lose efficacy. The handle of a sliding window is usually replaced by the switch part of the pin lock, but there are also some high-end sliding windows that make the window profile a beautiful arc, which acts as a window handle.


casement window


2. Casement window hardware accessories 

Compared with sliding windows, casement windows are more complicated in structure, but have better safety and ventilation.

Hardware accessories:

Hinge is one of the most important accessories for casement windows, which is used to control the opening and closing of windows. Because of the one-way opening setting of the hinge, the hinge is always installed in the direction in which the window is opened, that is, the inside hinge is installed indoors, and the outside hinge outdoors.

In order to prevent the hinge from affecting the seal of the window, the hinge of the metal window is usually welded to the outside of the window profile. The outside window lock is a rotating card lock, and the window handle is usually combined with the lock. Ordinary internal window locks can be simple latches, but the use of latches also has a disadvantage, that is, there is no compressing function of the rotating card lock.

The handles of the inside casement window are relatively independent and have no connection with other parts. The stopper is one of the necessary parts of the outside casement window, which prevents the wind from blowing the sash and causing a serious collision and unnecessary damages. However, the fixed plane formed by the two hinges and the stopper at three points is not completely solid and reliable. The stopper with good quality on the market is made of copper, which can better achieve the effect of rust prevention.


3. Tilt-and-turn window hardware accessories 

Literally speaking, a tilt-and-turn window can not only hang inside and let the window fall backwards, but also can open to the side of the house like a normal casement window. But this is far more than a special way to open a window. It can be said that it is a combination of various window control functions, a versatile product with excellent performance.

Hardware accessories:

Literally speaking, a tilt-and-turn window can not only hang inside and let the window fall backwards, but also can open to the side of the house like a normal casement window. But this is far more than a special way to open a window. It can be said that it is a combination of various window control functions, a versatile product with excellent performance.

The first purpose is to achieve the effect of ventilation when this kind of window is inverted. The metal connector on the top acts as a stopper, controlling a switch angle of the window. When the window is turned inward, the upper corner joint becomes a casement window hinge. The hinge at the bottom of the window acts as a shaft for tilting. The advantage of the inner swing is that you can clearly enjoy the beautiful scenery outside the window, and it is also more convenient when cleaning the glass dirt. When designing the window type, many people do not consider whether it is convenient to clean the glass, causing most of the windows in the domestic low-end residential buildings dirty.

Therefore, opening the window inwards is a comprehensive improvement of the quality of human life at home. The inner opening and falling window hardware includes an upper corner joint, an upper hinge, a lock, a handle, a connecting rod, a multi-point lock, a lower corner joint, an inward window bottom shaft, a bottom hinge and internal rotation bottom shaft. This hardware is suitable for wood, aluminum alloy and plastic steel windows.

So how to fix the connecting rod on the sash? I will recommend two solutions to you. The first is to design double sets of connecting rods, one for fixing, and the other for linkage locking point. The second is to pre-design the sliding groove on the window frame profile and it is superior to the first scheme in terms of lifespan and operating performance.

tilt-and-turn window




4. Hardware accessories for glass curtain walls 

How to combine glass curtain walls with windows is quite a tricky problem. Today the most advanced curtain walls can transform open-inside casement windows into glass curtain walls, and achieve their overall air-proofness, water-proofness, and wind pressure-resistance. It requires a high expenditures of human resources and materials to achieve this effect.

Hardware accessories:

As is known to us, the load bearing structure is usually set inside glass curtain walls, and thus open-outward casement windows are the simplest solution. But it requires the usage of hinges, and the exposed hinges will damage the overall structure of glass curtain walls, hence the invention of four-bar linkage. This accessory, as the substitute (or a better version) of hinges, applied a principle of quadrangle (that the area of quadrangle is variable when the lengths of its four sides remains constant) so as to open the window.

A four-bar linkage is usually fixed on the side of the sash and the frame, so it can be hidden completely in the frame when the window is closed, essentially solving the problem of window accessories being exposed. The feature of the phenomena that the working principles of a four-bar linkage determine is that when the window is opened, its center of gravity lowers conspicuously. This lowering performs a great function, that is, it can prevent the wind slamming the window. But at the same time, it makes it inconvenient to install and use the window operator, if the window is pretty large, for instance, the linkage will lower when it bears the window’s weight for a long time, and leads to untight closing.

We use multi-point locks in order to strengthen the wind pressure-resistance of the window. By connecting multiple lock points on the frame via a connecting tie after spinning the handle, the lock points slide smoothly into the lock body fixed on the frame; by using corner joints, the four sides of the window can be locked with one, two, or more lock points, completely transforming the traditional window locking system. This creative solution of combining a connecting tie with lock points is also applied to increase the level of anti-theft.

glass curtain window


  • Functions of Window and Door Hardware Accessories 

1.Some common physical performance indicators are wind pressure-resistance, air-proofness, water-proofness, heat preservation, heat-insulation, sound-insulation, and pressure-resistance. The most important one is wind pressure-resistance, the key to the quality of window and door; likewise, other performances bear a close relation to the match of hardware accessories and windows and doors.

2.As a light structure, window and door are the priority of architectural energy conservation, because their energy consumption accounts for over 50% of that of architecture. Therefore, we should take full consideration of this issue, like heat preservation and heat-insulation. Without multi-point lock hardware accessories, you can imagine what its performances and energy-saving effect are like, however top-quality it is.

3.Anti-theft is also one of the most concerned issues, and the design, structure and quality of window and door hardware accessories are crucial particularly in smart anti-theft window and door systems.

4.There are various kinds of types and structures in the design of window and door, and it is no exaggeration to say that all the functions of window types are determined by hardware accessories. Without these fittings, how can tilt-and-turn windows tilt and turn inwards? How can folding and sliding doors and windows fold and slide? How can tilt-and-slide systems and jalousie perform their unique functions? Therefore, hardware accessories are without doubt the "heart” of every window and door.


Conclusion: hardware accessories are the "heart” of windows and doors and determine their quality.

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