WO2019142023A1

WO2019142023A1 - A receptacle for a rolling shutter lock

Info

Publication number: WO2019142023A1
Application number: PCT/IB2018/051468
Authority: WO
Inventors: Prabhakar Anant JOSHI; Salil Prabhakar JOSHI
Original assignee: Joshi Prabhakar Anant; Joshi Salil Prabhakar
Priority date: 2018-01-16
Filing date: 2018-03-07
Publication date: 2019-07-25

Abstract

The present disclosure envisages a receptacle for a rolling shutter lock. The receptacle comprises a box defined by four sidewalls, an operative top wall, and an operative bottom wall. The box is configured to be embedded in a recess formed in a flooring facing the rolling shutter. A locking formation is configured on the operative top wall for allowing a locking element of the rolling shutter lock to be received therewithin. A pair of apertures is configured on the operative bottom wall. A fastener is configured to pass through each of the pair of apertures and fit into the flooring for securely holding the box within the recess.

Description

A RECEPTACLE FOR A ROLLING SHUTTER LOCK

FIELD

The present disclosure relates to the field of locks. In particular, the present disclosure relates to the field receptacles for rolling shutter locks. BACKGROUND

Rolling shutter locks are locks that are especially designed for locking rolling shutters. A rolling shutter lock includes a locking element provided at the rolling shutter and a receptacle provided at the flooring for receiving the locking element. In the conventional shutter locks, the receptacle, as illustrated in Fig. 1A, has a height that makes it suitable to install the receptacle 10 only at ground floor levels. These receptacles cannot be used at upper floors, since the RCC slabs which form the flooring of the upper floors are not thick enough to accommodate the height of such conventional receptacles.

Another conventional receptacle 30 is illustrated in Fig. IB. The receptacle 30 has a partially open cross section at the bottom surface thereof, which is embedded within a layer 32 of concrete. However, a disadvantage associated with the conventional receptacle 30 is its fragile construction, which can easily fail on application of heavy loads.

Therefore, in order to overcome the aforementioned drawbacks, there is felt a need of a receptacle for a rolling shutter lock having high structural strength, and which is suitable for being installed at any floor. OBJECTS

Some of the objects of the present disclosure, which at least one embodiment herein satisfies are as follows:

An object of present disclosure is to provide a receptacle for a rolling shutter lock having high structural strength. Another object of the present disclosure is to provide a receptacle for a rolling shutter lock that has a configuration suitable to be used on the ground and upper floors. Other objects and advantages of the present disclosure will be more apparent from the following description when read in conjunction with the accompanying figures, which are not intended to limit the scope of the present disclosure.

SUMMARY The present disclosure envisages a receptacle for a rolling shutter lock. The receptacle comprises a box defined by four sidewalls, an operative top wall, and an operative bottom wall. The box is configured to be embedded in a recess formed in a flooring facing the rolling shutter. A locking formation is configured on the operative top wall for allowing a locking element of the rolling shutter lock to be received therewithin. A pair of apertures is configured on the operative bottom wall. A fastener is configured to pass through each of the pair of apertures and fit into the flooring for securely holding the box within the recess.

In an embodiment, the at least one fastener is a concrete fastener bolt.

In another embodiment, the receptacle further comprises a cover plate configured to be fitted on the top wall. In another embodiment, the receptacle further comprises a first strengthening plate disposed operatively below the top wall fitted thereto.

In an embodiment, the receptacle further comprises a second strengthening plate disposed and fitted operatively below the bottom wall.

In an embodiment, the receptacle further comprises at least one side wall disposed and welded operatively to the sides of central frame to form the box.

In an embodiment, the top wall and the cover plate have a plurality of fitment holes configured at corners thereof for receiving fasteners therein.

In an embodiment, the first strengthening plate is welded on an operative bottom surface of the top wall. In an embodiment, the second strengthening plate is welded on an operative bottom surface of the bottom wall. In an embodiment, the receptacle further comprises a dust cover configured to be fitted on the strengthening plate to prevent entry of dust into the receptacle.

In an embodiment, the locking formation is an elongate slot.

In another embodiment, the receptacle further comprises a slot configured on the bottom wall for providing relief to the locking element of the rolling shutter lock within the receptacle.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING

A receptacle for a rolling shutter lock, of the present disclosure, will now be described with the help of the accompanying drawing, in which:

Fig. 1A and Fig. IB illustrate sectional views of two different embodiments of the conventional receptacles for the rolling shutter locks.

Fig. 2A and Fig. 2B illustrate an exploded isometric view and an isometric view, respectively, of the receptacle for a rolling shutter lock, in accordance with an embodiment of the present disclosure.

Fig. 2C illustrates a sectional view of the receptacle of Fig. 2B, wherein the receptacle is embedded in the concrete structure.

Fig. 2D illustrates a top view of the receptacle of Fig. 2C.

Fig. 3 A and Fig. 3B illustrate views of a fastener used in the receptacle of Fig. 2C.

DETAILED DESCRIPTION Fig. 1A illustrates a sectional view of a conventional receptacle 10 for a rolling shutter lock. As seen in Fig. 1A, the flooring in which the receptacle 10 is disposed includes different layers, viz., tiles 12, PCC concrete layer 14 provided below the tiles 12, and RCC slab 16 is provided operatively below the PCC layer 14. The receptacle 10 includes a slot for receiving the locking bolts 18 that are located on the rolling shutter (not seen in figures). The receptacle 10 has a trapezoidal configuration defined by tapered walls 10A. Typically, a recess is made in the flooring to fit the receptacle there within. It is difficult to make such deep cavities as it involves cutting the tiles 12, breaking the Plain Cement Concrete (PCC) layer 14, and then cutting the Reinforced Cement Concrete (RCC) slab 16 as per the application requirements. Also, the height of the receptacle 10 is such that it is not very suitable to be employed on the upper floors of the building. This is because on the upper floors of building have thin concrete slab. Making such recess in the flooring can cause crack formations on the ceiling below. Furthermore, making precise recess is also not possible because of the brittle nature of the flooring. Therefore, the recess is made out to be larger than the receptacle 10, and the gap G formed between the recess and the receptacle 10 is filled out with cement concrete filling 20. This concrete filling 20 is generally exposed and spoils the aesthetics of the receptacle 10.

Another embodiment of a conventional receptacle 30 is illustrated in Fig. IB. The flooring in which the receptacle 30 is fitted is the same as that for receptacle 10 and is not explained again for the sake of brevity. The reference numerals used to describe the tile 12, the PCC layer 14, the RCC slab 16, and the locking bolts 18 are retained for describing the receptacle 30 with reference to Fig. IB. The receptacle 30 has a rectangular configuration defined by a bent metal sheet having parallel sidewalls 34. The receptacle 30 defines a partially open cross section at the bottom surface thereof, which is defined by spaced apart plates 36 extending from the sidewalls 34. The receptacle 30 is configured to be embedded within a concrete layer 32. The locking bolts 18 are received within a slot configured on the receptacle 30. However, the construction of the receptacle 30 is very fragile. More specifically, the only thing holding the receptacle 30 within the recess is the thin concrete layer 32. Thus, the receptacle 30 is susceptible to failure under the application of a heavy load.

The present disclosure envisages a receptacle for a rolling shutter lock that overcomes the aforementioned drawbacks. The receptacle, as disclosed in the present disclosure, has a configuration that makes it suitable for use in the upper floors as well. Also, the receptacle, as disclosed in the present disclosure, is very securely held by at least one fastener bolt within the flooring and is not susceptible to failure even under the application of high loads associated with the theft scenarios.

Fig. 2A to Fig. 2D illustrate different views of a receptacle for a rolling shutter lock 100 (hereinafter referred to as receptacle 100), in accordance with the present disclosure. The receptacle 100 comprises a box 102 is defined by four sidewalls joining 108’, 108”, 114, 116 an operative top wall 104 and an operative bottom wall 106. The box 102 is configured to be embedded in a flooring interfacing the rolling shutter (not shown in figures). The receptacle 100 further comprises a locking formation 110 configured on the top wall 104 of the box 102 for allowing a locking element of the rolling shutter lock to be received therewithin. In an embodiment, the locking formation 110 is a slot.

In an embodiment, at least one aperture 112 configured on the bottom wall 106 for receiving at least one fastener 118 configured to pass through the at least one aperture 112 and fit into the flooring for securely holding the box 102 within the flooring. In an embodiment, the number of apertures 112 and the number of fasteners is two. However, the number is not only limited to two, and can be any number depending upon the application requirements. In an embodiment, the fastener 118 is a concrete fastener bolt or an anchor bolt. On tightening the bolt the jaws of this fastener bolt expand outwards and lock against the surrounding concrete layer. In an embodiment, the bottom wall 106 further comprises a slot 132 configured thereon for providing relief to the locking element being received within the receptacle 100.

In an embodiment, the receptacle 100 further comprises a cover plate 120 configured to be fitted on the top wall 104 for providing an aesthetic look to the receptacle 100. The cover plate 120 can be of a metallic or a nonmetallic material. The cover plate 120 can also be provided with colourful and elegant patterns to improve the aesthetics of the receptacle 100. In some cases, the use of the cover plate 120 covers the cement filling around the body of the receptacle 100, thereby providing a pleasant look to the receptacle 100. In one embodiment, the top wall 104 and the cover plate 120 have a plurality of fitment holes 124 configured at corners thereof for receiving fasteners 130 therein.

In one embodiment, the box 100 is made of a central frame on which the sidewalls 114, 116 are welded. More specifically, the central frame is a rectangular structure obtained by performing bending operation on an elongate plate. Once the rectangular structure is formed, the sidewalls 114, 116 are welded onto the open faces of the central frame to define the box 102.

In an embodiment, the receptacle 100 further comprises a first strengthening plates 122 disposed operatively below the top wall 104, and a second strengthening plate 128 disposed operatively below the bottom wall 106 respectively and fitted thereto. More specifically, the first strengthening plate 122 is welded to an operative bottom surface of the top wall 104, and the second strengthening plate 128 is welded to the operative bottom surface of bottom wall 106. The first and second strengthening plates 122, 128 provide structural strength to the top wall 104 and the bottom wall 106 respectively. The second strengthening plate 128 for the bottom wall 106 is an optional feature for the receptacle 100. As such, any application of high loads associated with theft scenarios do not cause the failure of the receptacle 100, thereby increasing the security provided by the receptacle 100.

In an embodiment, the receptacle 100 further comprises a dust cover 126 configured to be fitted on the first strengthening plate 122 to prevent entry of dust into the receptacle 100. The dust cover 126 is not coupled to the first strengthening plate 122 and is only disposed on the first strengthening plate 122. In case where access to the receptacle 100 is required, the dust cover 126 is removed from the cover plate 120 and placed at some other location.

The flooring in which the receptacle 100 is fitted is the same as that for receptacle 10 and 30 and is not explained again for the sake of brevity. The reference numerals used to describe the tile 12, the PCC layer 14, the RCC slab 16, and the fastener bolts 118 are retained for describing the receptacle 100 with reference to Fig. 2C, Fig. 3A, and Fig. 3B. Referring to Fig. 3 A and Fig. 3B, the fitment of the fastener 118 within the flooring is illustrated. Reference, hereinafter, is directed to Fig. 2C, Fig. 3 A, and Fig. 3B. The receptacle 100 is fitted into the flooring by means of the fastener 118. The fitment of the receptacle 100 involves making an approximate recess within the flooring. However, the recess is only required to be made upto the point where the RCC slab 16 is reached. More specifically, for making the recess, only the tile 12 and the PCC layer 14 need to be break, and the RCC slab 16 need not be cut. This feature of the receptacle 100 makes it suitable to be used at any floor, while addressing the drawback of crack formations on the ceiling of the floor below.

After the recess has been made in the flooring, holes are drilled in the RCC slab 16 for receiving the fasteners 118 therewithin. More specifically, as seen in Fig. 2C, the fasteners 118 hold the entire receptacle 100 in place within the recess.

As stated earlier, the fasteners 118, in accordance with one embodiment, are concrete fastener bolts or anchor bolts. Referring to Fig. 3 A and Fig. 3B, the fastener 118 has walls 118A proximal the bottom end thereof, and a tapered pin 118B extending beyond the walls 118 A. On tightening the fastener or hexabolt 118, the tapered pin 118B is pulled upwards, and the tapered configuration of the tapered pin 118B causes the walls 118A to be expanded, thereby anchoring the fastener 118 within the flooring, and more specifically, within the RCC slab 16. As seen in Fig. 2C, the fasteners 118 are tightened to anchor the receptacle 100 in an expanded configuration of the fasteners 118. The box 102 is first placed inside the recess formed in the flooring. From the slot 110 formed on the top wall 104, the fasteners 118 are inserted within the box 102 and fitted into the holes configured on the RCC slab 16. The slot 132 configured on the bottom wall 106 provides relief to the locking element being received within the receptacle 100. The receptacle 100, as disclosed in the present disclosure, relies on the usage of the fasteners 118 within the RCC slab 16. The recess required for accommodating the receptacle 100 need not be cut within the RCC slab 16, and therefore, the disadvantage of crack formations in the ceiling below is overcome by the receptacle 100 of the present disclosure. Also, the use of the first and second strengthening plates 122 & 128 provides structural integrity to the receptacle 100 to provide adequate security in theft scenarios.

TECHNICAL ADVANCEMENTS

The present disclosure described herein above has several technical advantages including, but not limited to, a receptacle for a rolling shutter lock:

• having high structural integrity; and · that has a configuration suitable to be used at any floor levels.

The disclosure has been described with reference to the accompanying embodiments which do not limit the scope and ambit of the disclosure. The description provided is purely by way of example and illustration.

The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.

The foregoing description of the specific embodiments so fully revealed the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

Throughout this specification the word“comprise”, or variations such as“comprises” or “comprising”, will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.

The use of the expression“at least” or“at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.

Any discussion of documents, acts, materials, devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.

The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher/lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification specific to the contrary.

While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

Claims

CLAIMS:

1. A receptacle (100) for a rolling shutter lock comprising:

a box (102) defined by four sidewalls (108’, 108”, 114, 116), an operative top wall (104), and an operative bottom wall (106), said box (102) being configured to be embedded in a recess formed in a flooring that faces the rolling shutter;

a locking formation (110) configured on said operative top wall (104) for allowing a locking element of said rolling shutter lock to be received therewithin;

a pair of apertures (112) configured on said operative bottom wall (106); and a fastener (118) configured to pass through each of said pair of apertures (112) and fit into the flooring for securely holding said box (102) within the recess.

2. The receptacle (100) as claimed in claim 1, wherein said at least one fastener (118) is a concrete fastener bolt.

3. The receptacle (100) as claimed in claim 1, further comprising a cover plate (120) configured to be fitted on said top wall (104). 4. The receptacle (100) as claimed in claim 1, further comprising a first strengthening plate

(122) disposed and fitted operatively below said top wall (104).

5. The receptacle (100) as claimed in claim 1, further comprising a second strengthening plate (128) disposed and fitted to the operative bottom surface of said bottom wall (106).

6. The receptacle (100) as claimed in claim 1, further comprising at least one side wall (114, 116) disposed and welded operatively to the sides of the central frame to form the box

(102).

7. The receptacle (100) as claimed in claim 3, wherein said top wall (104) and said cover plate (120) have a plurality of fitment holes (124) configured at corners thereof for receiving fasteners (130) therein. 8. The receptacle (100) as claimed in claim 4, wherein said first strengthening plate (122) is welded on an operative bottom surface of said top wall (104).

9. The receptacle (100) as claimed in claim 5, wherein said second strengthening plate (128) is welded on an operative bottom surface of said bottom wall (106).

10. The receptacle (100) as claimed in claim 3, further comprising a dust cover (126) configured to be fitted on said first strengthening plate (122) to prevent entry of dust into the receptacle (100).

11. The receptacle (100) as claimed in claim 1, wherein said locking formation (110) is an elongate slot.

12. The receptacle (100) as claimed in claim 1, further comprising a slot (132) configured on said bottom wall (106) for providing relief to the locking element of the rolling shutter lock within said receptacle (100).