TW201812162A - A lintel - Google Patents

Abstract

A lintel 100 is disclosed herein. In a described embodiment, the lintel 100 comprises an elongate lintel body 106 including an elongate base member 110 and side legs 112,114 extending from the elongate base to define an elongate channel therebetween. The elongate body 106 further includes a load bearing element in the form of lip members 118,120 projecting from respective side legs 112,114 for supporting masonry elements 206, end portions 102,104 at ends of the lintel body for engaging with the support structures 202,204, and a plurality of protrusions 122 disposed at least at the end portions.

Description

Lintel

FIELD OF THE INVENTION The present invention relates to lintels.

BACKGROUND OF THE INVENTION A typical channel lintel includes a horizontal bottom and has a number of upright side legs extending along both sides of the horizontal bottom. The brickwork is supported in the channel, that is, between the side feet and on the horizontal bottom. However, this arrangement is not structurally efficient.

There is therefore a need to provide a doorway that will address at least one of these shortcomings of conventional technology and / or provide the public with a useful option.

SUMMARY OF THE INVENTION In a first aspect, a lintel for spanning an opening defined by a support structure is provided. The lintel includes an elongated lintel body including an elongated bottom member; Several side feet extending at the bottom of the door to define an elongated channel therebetween; a load bearing element protruding from at least one of the side feet to support the brick element; at the end of the lintel body A plurality of ends at the ends for connecting with the supporting structures; and a plurality of protrusions provided at least at the ends.

The described embodiment is capable of strengthening the lintel due to the protrusions. In addition, the load-bearing element can support brick elements, so it is not necessary to fill the channel with bricks, and material can be saved.

Preferably, the protrusions can be separated from each other and arranged along the length of the lintel body. Some of the plurality of protrusions may be provided on the bottom member, and the rest may be provided on the side feet.

Preferably, the protrusions may be elongated and may have a longitudinal axis of the protrusion that crosses one of the longitudinal axes of the lintel body. Advantageously, the protrusions may be arranged to face the channel inwardly.

Preferably, the load bearing element may include a plurality of lip members protruding from respective edges of the side feet and extending along the longitudinal axis of the channel, and the lip members are Configured to support such brickwork elements.

The lintel may include a plurality of perforations, and the plurality of perforations may be interleaved with each of the plurality of protrusions. The perforations may be circular or other shapes.

Other aspects may be related to a method of manufacturing the lintel of the first aspect (for example, embossing to make the protrusions of the lintel), or use the lintel of the first aspect to build a brickwork. Wall approach.

Please understand that there are features about one aspect and other aspects.

Detailed Description of the Preferred Embodiment FIG. 1 shows a lintel 100 for spanning an opening 200 according to a preferred embodiment. The lintel 100 has ends 102, 104 that are supported by support structures 202, 204 that define the opening 200. It should be understood that the lintel 100 is configured to bear the load 206 above the opening 200, and in this embodiment, the load 206 and the supporting structures 202, 204 are made of brickwork such as bricks, cement Units, building stone, etc.

FIG. 2 is an enlarged view of part A of FIG. 1, which shows a section of the lintel 100 more closely, and FIG. 3 is a perspective view of the section of FIG. 2, but the supporting structures are not shown. FIG. 4 is a cross-sectional view of the door lintel of FIG. 3 in the B-B direction, and FIG. 5 is a cross-sectional view of a lintel 100 of FIG. 3 in the C direction.

The lintel 100 is generally manufactured in advance, and is preferably made of steel or other metals. The lintel 100 includes an elongated lintel body 106, the lintel body 106 has a longitudinal axis 108 across the opening 200, and the lintel body 106 includes a generally flat elongated bottom member 110. The lintel body 106 further includes side feet 112, 114 which protrude upright along the respective sides of the bottom member 110 to define a generally U-shaped channel 116 (see FIG. 4).

The lintel 100 further includes a load bearing element for supporting the brickwork, and the load bearing element is configured to protrude from at least one of the side legs 112, 114. In this embodiment, the load bearing element includes lip members 118, 120, which protrude inward and face each other in a manner approaching a vertical angle with the side feet 112, 114. Each of the opposing lip members 118, 120 has a width W of about 10 mm.

The lintel 100 further includes a plurality of protrusions 122 configured to strengthen or reinforce the structural strength of the lintel body 106. The protrusions 122 are formed on the lintel body 106 and are regularly spaced along the longitudinal axis 108 of the lintel body 106, and the center-to-center distance between adjacent protrusions is about 30 mm. The protrusions 122 are formed on the bottom member 100 and the side feet 112, 114 to form a plurality of groups of protrusions, and each group 122a has a protrusion 122 on each of the bottom element 100 and the side feet 112, 114. One is aligned along a common plane.

Each protrusion 122 is elongated, has a finite strip length and a longitudinal axis 124 of the protrusion, and in this embodiment, the protrusions 122 are configured such that the longitudinal axis 124 of the protrusion crosses the lintel The length or longitudinal axis 108 of the body 106. The protrusions 122 have a protrusion width Pw (see FIG. 5) of about 8 mm, and form a semi-circular end portion with a tip radius of about 4 mm. As shown in FIGS. 4 and 5, the protrusions 122 are formed to face the channel 116 inward, preferably by embossing and embossing to create a depression or depression having a depth of about 1 or 2 mm. Needless to say, other sizes are also possible.

The lintel body 106 further includes a series of perforations, and in this embodiment, the perforations are circular pores 126 that are configured in multiple rows and interleaved between the plurality of elongated pores. Each row has two circular apertures 126 on each of the bottom member 110 and the side feet 112, 114. The circular apertures 126 are configured to receive stucco to allow a better joint between the lintel 100 and the sand cement slurry that is finally applied to the lintel.

In use, the lintel 100 is configured to span an opening 200 as shown in FIG. 1. However, the brickwork (or load) 206 is received on the lip members 118, 120, and the non-brickwork is disposed in the channel 116. Therefore, the lip members 118, 120 are configured as It can support the weight of the load 206 on the top of the lintel 100. The load 206 acting on the lip members 118, 120 is further transferred to the lintel body 106 (through the side feet 112, 114 and the bottom member 110) and the ends 102, 104 of the lintel body. And other supporting structures 202, 204.

It has been found that the presence of the protrusions 122 strengthens the bottom member 110 and the side feet 112, 114, and can reduce the bending of the bottom member 110 due to the load when the bottom member 110 is in contact with the support structures 202, 204 And / or the possibility of the side feet 112, 114 being bent or flexed, and this will result in a more efficient load transfer. The use of the protrusions 122 will also eliminate the need to increase the thickness of the lintel 100 or the stress level of the manufacturing material to address these failure modes, so a more economical material use can be achieved.

Indeed, the protrusions 122 will enable the lintel 100 to support more loads, especially with a narrower opening 200 (and accordingly the lintel 100 will be correspondingly shorter).

Using the lintel 100 to support the load 206 at the lip members 118, 120 (rather than in the channel 116) will provide more advantages: i) indirectly reduces the weight and use of brickwork ( Or less), as there is no need to use brickwork in the channel 116; and ii) the brickwork unit can use mud as thin as 3mm (such as in the case of grazing). This is not possible on traditional channel lintels, as the side feet of these lintels will be located outside the brickwork.

The lip members 118 and 120 can increase the load capacity of the lintel 100. For example, a 60mm × 60mm (i.e., width and height) lintel 100 with 10mm lip members 118, 120 will have about 30% higher stiffness than a lintel with similar dimensions without lip members.

As mentioned earlier, the protrusions 122 on the side feet 112, 114 help to increase the load capacity of the shorter span, and also help the mud lock or join. The protrusions 122 may not be as good as the perforations 126 (because the protrusions 122 are "blind holes" rather than through holes), they can allow more stucco to penetrate and better join, but the protrusions 122 The body can still assist in the joining process, as the plaster can fill (outside) the protrusions 122.

The described embodiments should not be considered limiting. For example, in the embodiment, the protrusions 122 are formed as elongated finite strips, but other shapes are also conceivable. In addition, the protrusions 122 are configured such that the longitudinal axis 124 of the protrusions extends through the width of the bottom member and reaches the side feet 112, 114 to obtain the maximum benefit, but the protrusions 122 may also be configured to Other orientations or directions, such as parallel to the length or longitudinal axis 108 of the lintel body 106, are not preferred.

In the embodiment, the protrusions 122 are spaced apart from each other and are arranged along the entire length of the lintel body 106 to facilitate manufacturing. This is also advantageous because the amount of the ends 102, 104 of the lintel 100 bearing or set on the support structures 202, 204 is usually determined on the spot based on the length of the lintel and opening 200, etc. However, it is also conceivable that the protrusions 122 need only be formed on or near the ends 102, 104 of the lintel body 106, which are fixed on the support structures 202, 204 to achieve load transfer efficiency. Therefore, the protrusions 122 need not be formed throughout the entire length of the lintel body 106. Similarly, although it is better to form the protrusions 122 on the two legs 112, 114, this may not be necessary, and in some cases, the protrusions 122 may be formed only in the Either one of the side feet 122 and 124 is not on the side feet 122 and 124 but only on the bottom member 110.

In the described embodiment, the protrusions 122 are formed to face the channel 116 inward, but it is conceivable that the protrusions 122 can also face away from the channel 116 outwardly.

The shape and size of the lip members 118 and 120 can be changed. For example, although the described embodiment shows that the continuous lip members 118, 120 extend along the length of the lintel body, which will make it easier to manufacture, it is conceivable that the lip members 118, 120 may also include a series of mutual Separate individual components. The size of the lip members 118, 120 may be changed according to the size and use of the lintel 100. There are no specific restrictions on the size of the lip members, but if the lip members 118, 120 are too small, the effect and benefit may be limited, and if the lip members 118, 120 are too large, the load transfer may not be effectiveness. In fact, it has been found that the width W of the lip members 118, 120 can be changed as a function of the steel thickness and size of the side feet 112, 114, so that a specific load transfer efficiency can be achieved. For example, 10 mm wide lip members 118, 120 may be used in the lintel body 106 with a thickness of about 1 mm to achieve the best load transfer efficiency.

In the embodiment, the lip members 118 and 120 will protrude toward each other, but it is conceivable that the lip members 118 and 120 can also face outward and away from each other.

The lintel 100 of the embodiment includes the generally U-shaped channel 116, but the shape of the channel 116 can be changed. In fact, it is conceivable that the aspect of the embodiment can also be used in a “cassette lintel”, in which the load bearing element can close the channel 116. For example, the load bearing element may protrude from one edge of one of the side feet 112, 114 and extend across the other side foot 112, 114 to create a box-like lintel, in which the load will still be Bearing on the load bearing element.

Now that the invention has been fully described, it will be readily apparent to one skilled in the art that many modifications can be made without departing from the scope as requested.

100‧‧‧men

102, 104‧‧‧ end

106‧‧‧ Ontology

108‧‧‧ vertical axis

110‧‧‧ bottom member

112, 114‧‧‧ Side Feet

116‧‧‧Slot

118, 120‧‧‧ lip members

122‧‧‧ protrusion

122a‧‧‧Surface group

124‧‧‧ protrusion longitudinal axis

126‧‧‧ circular aperture (perforated)

200‧‧‧ opening

202, 204‧‧‧ support structure

206‧‧‧Brick element (load)

Pw‧‧‧ protrusion width

W‧‧‧ lip width

Now, an exemplary embodiment will be described with reference to the accompanying drawings, in which: FIG. 1 is a simplified diagram of a lintel spanning an opening according to a first embodiment; FIG. 2 is an enlarged view of part A of FIG. 1 A perspective view is used to show a section of the lintel more closely; FIG. 3 is a perspective view of the lintel of FIG. 2, but the brickwork is not shown; FIG. 4 is a sectional view of the lintel of FIG. 3 in a direction BB; and FIG. 5 is a partial cross-sectional view of the lintel of FIG. 3 in a direction C. FIG.

Claims (9)

A lintel for spanning an opening defined by a support structure, the lintel comprising: an elongated lintel body comprising: (i) an elongated bottom member; (ii) a number of side legs formed by the elongated The bottom extends to define an elongated channel therebetween; (iii) a load bearing element protruding from at least one of the side feet to support the brick element; (iv) several at the end of the lintel body The ends are used to interface with the supporting structures; and (v) a plurality of protrusions are arranged at least at the ends. For example, the lintel of claim 1, wherein the protruding systems are separated from each other and arranged along the length of the lintel body. As in the case of claim 1 or 2, some of these protrusions are arranged on the bottom member and others are arranged on the side feet. The lintel of any one of claims 1 to 3, wherein the protrusions are elongated and have a longitudinal axis of the protrusion that crosses a longitudinal axis of the lintel body. As in the doorway of any one of claims 1 to 4, the protrusion systems are arranged to face the channel inwardly. The lintel of any one of claims 1 to 5, wherein the load bearing element includes a plurality of lip members protruding from respective edges of the side feet and extending along the longitudinal axis of the channel The lip members are configured to support the brickwork elements. For example, the lintel of any one of the claims 1 to 6 further includes a plurality of perforations. For example, the gate of claim 7, wherein the plurality of perforations are interposed with each of the plurality of protrusions. If the lintel of item 7 or 8 is requested, the perforations are circular.