CN1860279B - Quick hinge - Google Patents

Abstract

A concealed pivot door hinge comprising: a reinforcing strap built into the door, a pin attached to a metal flange for attachment to the floor below the door or to the door frame above the door, and a pin receiver attached to a flange and mounted on the door, optionally fixed to the strap.

Description

Quick hinge

technical field

The present invention relates to door hinges, particularly (but not exclusively) hinges of aesthetic quality and the ability to be easily and quickly installed.

Background technique

Traditionally, doors are field installed using butt hinges or pivot hinges (see Figure 1).

These hinges need to be slotted and mortised into wooden doors or recessed into metal doors with stiffeners. If this work is done in a factory, as usual, the hinges face problems of alignment, trimming, cutting the door, changes in the relative position of the hinges, etc., due to differences in different locations and floor-to-ceiling heights of the premises.

Another option is customizing the hinges on site, but due to current hinge designs, more woodworking and metalworking is required to install the hinges in the door. This is a major reason why excessive time and labor is required when installing door hinges.

Finally, the hinge's joints are prominently revealed when the door is closed, and the hinge plates are revealed when the door is opened.

Contents of the invention

The door is connected to the frame by hinges. The hinge is mounted to one side of the door (hinge side). The door swings on hinges.

It is an object of the present invention to conceal the entire hinge system within the door and frame while allowing the door to move away from the frame as it moves through its swing path. A specific pivot point (pivot axis) that must be found on the door for the purpose of leaving the door frame. Next, when the door is opened and closed using the pivot hinge, the door will rotate on this pivot point.

In general, there are two types of pivot hinges: offset pivot hinges and centered pivot hinges (see Figures 2A and 2B).

Offset pivot hinges are used for one-way doors (single action doors), wherein the pivot hinges are mounted in the usual manner shown in Figure 2A. This way, when the door is closed, the pivots are visible since they are on the outside of the door.

Centered pivot hinges are used for two-way doors (double action doors), where the pivot hinges are mounted in the usual manner shown in Figure 2B. The hinges are hidden within the door, but require that both edges of the door be rounded/chamfered so that the edges move away from (not in contact with) the door frame as the door moves through its swing path. The pivot point is located along the center of the door thickness. The present invention uses a new pivot point that is neither centered nor offset. Instead, it is a pivot hinge in which the corner of the door moves away from the door frame without contacting the door frame, while keeping the pivot point inside the door, thereby concealing it. The implicit pivot can be positioned by computer aided design with a 3mm clearance (tolerance) between the two corners A and B of the door edge and the door frame with a 20mm frame slot.

The shaded areas shown in Figures 2C(i) to (vii) are areas where a pivot point can be placed to achieve the effect described above. Any point selected within this area will allow the door edge to move through the swing path without touching the door frame. At this point should be satisfied:

(1) The thickness of the door is 35mm to 60mm.

(2) There is a minimum clearance/tolerance of 3 mm between the door and the door frame, both for the door face and the door edge.

(3) The depth of the frame groove is 20mm.

The choice of pivot point location within the shaded area is influenced by several factors.

(1) If the pivot point is offset away from the door edge (A-B, hinge side), this will correspondingly reduce the net open space, ie the space required for user access (see Figure 2D).

(2) If the pivot point is offset closer to the door surface, the door is required to be made of a stronger material so that a 50-60kg door can be supported with a thinner pin/shaft, this is because it has to be considered that the pin or shaft is only 5mm of the radius. This means that the thickness from the door face to the shaft is only 5mm.

(3) If the pivot point is shifted closer to the corner "A" of the door, stronger straps and reinforcements are required to support the weight of the door and deflect the momentary force when turning.

Most pivot hinges include backing plates with holes that are slotted/fitted into the top and bottom of the door (see Figure 3). The functions of this liner are:

(i) stiffeners as pivot points;

(ii) serve as a "datum" to locate pivot points;

(iii) Distribute the force along the liner.

In this case, the thickness of the liner used for heavy doors is 3-15mm, which is a large size for field grooving.

To avoid field grooving, all removal of wood/material can be done with drills only - ie only circular holes are drilled.

The present invention is a complete change from the traditional approach wherein the door is processed on site to be fitted to the door frame.

The quick hinge consists of three parts:

1) liner

Unlike traditional liners which are thicker (3-15mm) and require slotting, the design of the present invention uses liners which are 1.5-8mm thick but wider. The liner is built into the door along its top and bottom corners during door manufacture and is glued, screwed, nailed or clamped to the stiles and rails )between.

The gusset is widened so that it can be positioned easily and distributes the weight of the door over a wider area, thereby reducing the forces acting on the hinges and the door.

For hollow-core doors, additional blocks can be used to reinforce the liner (see Figure 4).

Also, backing boards can be provided with perforations, corrugations, silk screens to facilitate bonding/bonding to wooden/composite doors. For some panelized door designs, the liner can be bent into an "L" shape or formed into a "U" shape (see Figure 4A).

Since the individual components are designed to be drilled or surface mounted, the liner plays an important role in several ways:

(1) Locate the position of the receiver;

(2) maintain accurate altitude;

(3) Distribute the load at the pivot point/provide support along the door panel.

The liner is a metal reinforcement plate with a thickness of 1-3mm and is embedded in the door panel during the manufacturing process of the door. Each liner is positioned between the door core (in the case of a fire rated door) and the inner banding (see Figure 4), with one liner at the top and one liner at the bottom. For hollow-core doors, grooves can be made in the edge banding or additional timber can be used to hold the liner in place.

2) Pin/shaft

The pin/axle is the part on which the door pivots and is preferably made of a non-corroding material such as stainless steel. The preferred diameter is 5-14mm, depending on the frequency of use of the door, the width and weight of the door. The shaft is preferably hardened and uses ball bearings at the bottom to reduce friction. For lightweight doors (30-50kg), the entire weight can be carried by the pins.

The pins must be mounted on metal flanges to allow the pins to be secured to doors and door frames. Various types/structures can be used (see Figure 5). It is preferred to have the pins fixed to the flange and the height changed by shims. Alternatively, the pin could be raised/lowered relative to the flange by screws/nuts or other means.

3) Receiver - plate/flange or barrel/disc form

The pin is placed in a sleeve called a receiver. The receiver is mounted opposite the pin/shaft. For example, if the pin/shaft is mounted on the door frame, the receiver will be mounted on the door and vice versa.

The receiver is flange mounted to allow the receiver to be secured to the door or floor/doorframe. Since the flanges are exposed, they are preferably made of stainless steel and the thickness of the various flange elements is 2-9 mm. The flanges can be of unequal thickness, eg thin at the top and thick at the bottom. This is due to the fact that more weight is carried at the bottom than at the top, and at the top is more of a guide around which the door pivots. The door-to-ground clearance can be 10mm and at the top the door-to-jamb clearance can be 3-5mm. These flanges should be the surface to be installed to avoid slotting. For heavier doors, the sleeve will be enlarged into a disk, as shown in FIG. 6 .

This pan/barrel can be rotated to allow adjustment of the pivot point, and has holes to secure the pan to the liner (note that the liner is already pre-installed in the door). In this construction, the pin is made shorter so as to be used only as a guide to pivot around it, the weight of the door being carried by the disc having a larger area. This pan/barrel can be raised or lowered. Depending on the weight of the door, the size and shape of the striker, pin and receiver can vary. Some variations of these components are shown in FIG. 4 . The pin can be mounted on the door frame or on the door, with the receiver mounted at the opposite location.

For all pivot points, the pin and receiver can be mounted on the door and on the frame/floor respectively, or vice versa.

Door edge banding has a fixed thickness, usually equal to the dimensions of the receiver. Flange/plate receivers can be machined with welded guides. In this regard, the guide can have sleeves and bearings or sintered bearings for reducing friction. Such a disc/bucket may also have a sleeve with bearings lining the bore.

The installation method is as follows:

1) Thread/bolt the pin to the door/jamb.

2) Place the receiver inside the door (top and bottom).

3) The door panels are carried on pins set on the ground and placed in place.

4) With the top of the door accessible by tilting out of the door frame, put the pin for the top into the receiver for the door.

5) Next, with the door open until the flange with the holes for the screws is revealed, screw the top pins into place.

For doors weighing up to 50-60kg, since the diameter of the pin can be 6-14mm, the pin can carry the weight of the door and will not affect the door because the pivot point is close to the door surface and a thicker pin will reduce the remaining space surface.

For heavier doors a barrel/dish is used and then the weight will be distributed across the width of the barrel. The pins then only serve as guides. The barrel/dish can be rotated in its center to make any necessary adjustments during installation. This will move the position of the aperture of the receiver to allow adjustment in left/right or front/rear positions.

To adjust the height, the ground pins can have shims or washers to raise the bucket/disc. The pan/dish can also be configured so that it can stick out more by adding spacers between the liner and the tub/dish to take up the clearance between the left door and the door frame.

Since this is a pivoting hinge system, safety pins can be used if necessary, as in other common practice.

Claims (8)

1. implicit expression pivot hinge comprises:

Door, the thickness of described door is 35mm to 60mm; Gap or allowance that minimum 3mm is arranged between door and doorframe are not always the case for door surface and door edge;

Described door comprises liner plate, and described liner plate is built in the door by top corner part and bottom comer along door in the manufacture process of door, and bonded, be threaded, stickfast or be interposed in stile and crosspiece between;

Pin or axle, described pin or axle are installed on the metal flange, so that be fixed on the ground at bottom position, are fixed on the doorframe at tip position, and described pin or axle are the parts that described door is pivoted thereon;

Receiving element, described receiving element is installed on the flange, goes up or is fixed on ground or the doorframe so that be fixed to door, and described receiving element is installed mutually opposed to each other with described pin or axle;

Wherein, the bight of door keeps centring point to place in the door with under the situation that doorframe contact not leaving doorframe simultaneously, hiding thus this centring point.

2. implicit expression pivot hinge as claimed in claim 1 is characterized in that described pivot hinge is installed in the door in advance, and does not need on-the-spot fluting.

3. implicit expression pivot hinge as claimed in claim 1 is characterized in that, described pivot hinge is by described pin or axle and receiving element are fixed on the liner plate and are strengthened, so that the weight of carrying door.

4. as each described implicit expression pivot hinge in the claim 1 to 3, it is characterized in that described liner plate is provided with perforation, ripple, silk screen, to help combination or to be adhered on timber or the composite gate.

5. as each described implicit expression pivot hinge in the claim 1 to 3, it is characterized in that described axle is by cure process, and use ball bearing to reduce friction in the bottom.

6. implicit expression pivot hinge as claimed in claim 1 is characterized in that, described pin is fixed on the described metal flange and by pad and changes height.

7. implicit expression pivot hinge as claimed in claim 1 is characterized in that, by screw or nut pin is raise or reduction with respect to described metal flange.

8. as each described implicit expression pivot hinge in the claim 1 to 3, it is characterized in that described door is a hollow core flush door.

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