ES1307033U - Pulley holder support for clothesline (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Pulley holder support for clothesline, (1) consisting of a support for the usual pulleys of rope clotheslines that extend between two identical supports, characterized by consisting of a housing (2), a pulley (3) and mechanical means intended to ensure smooth rotation of the pulley (3) on an axis defined by an axial screw (5), the casing (2) being reinforced by a plate (8), in the shape of a "U" that is fixed to a wall or wall by means of one, two or more anchor screws (10) that also pass through the casing (2), whose side wings have holes to allow the passage and fastening of the axial screw (5). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Pulley holder support for clothesline

Technical object of the invention

The present invention describes an improved support for the common pulleys of rope clotheslines that extend between two identical supports. In addition to incorporating mechanical and resistant improvements, it includes protection against inclement weather, especially rain or snow.

Technical sector to which the invention relates

The invention presented corresponds to Section F of Mechanics of the International Patent Classification (IPC), chapter on Technology in general, section related to Elements or sets of technology. General measures to ensure the proper functioning of machines or facilities, influencing from an industrial point of view the manufacture of accessories for domestic needs in relation to hanging clothes after the washing process.

Background of the invention

Taking into account that washing and drying clothes is a process that is carried out all over the world, it is understandable that countless inventions related to this topic are registered in the Patent Offices.

In a light search of the multiple registered inventions, it can be seen that, in the specific case of clotheslines, there are many types that can generally be classified as:

- Folding clotheslines

- roll-up

- extendable

- swivels

- laptops

- pantograph type

- with multiple strings

- with built-in tweezers

- with fixed awning

- with sliding awning

- with rain and radiation protectors

- vertically scrollable

- self-rolling with safety anchor

- with rope tensioners

and many others in an endless list.

Despite everything, there are no inventions that stop at improving the mechanical aspects of the parts involved and other very specific details, which is where the invention presented here has an impact, so it is a solution which represents an improvement of the current state of the art, using simple and economical pieces that significantly prolong the life of elements incorporated in common rope clotheslines.

Summary description of the invention

The invention describes an improved support for the common pulleys of rope clotheslines that extend between two identical supports.

Normally, the pulleys supplied in the industry market are made of plastic or relatively soft metals, resulting in very rapid wear of the pulleys in the area of their contact with their corresponding axis of rotation, making the hole oval and making it difficult. the smooth movement of the rope that loosens and deteriorates. If it is re-tensioned, making new knots, the wear of the holes is even faster until one or both of the pulleys are useless and must be discarded to be replaced with new ones. All of this is accentuated in those clotheslines with relatively long ropes where the tension must be high to avoid pronounced arrows.

Little importance is given to this process because the price of the pulleys is very low and their replacement has little economic impact. However, the malfunction of the set is an inconvenience for certain people of a certain age, who must apply more force to move the ropes and cannot, by themselves, proceed to dismantle the clothesline to proceed with its renovation. Added to all this is another drawback, in outdoor clotheslines, whose deterioration is faster because they are subjected to inclement weather, especially rain, snowfall or frost.

In view of the above, the inventor proposes mounting the pulleys on one or two ball or roller bearings, without ruling out the classic solution of bronze bearings.

Complementing this improvement, the inventor also includes the improvement of these assemblies, through boxes that protect the mechanisms from the aforementioned inclemencies, at both ends of the rope.

The result is a long-lasting assembly, very smooth in operation and at an affordable price for any economy.

The following sections include the drawings and description that allow the details of the device of the invention to be known, which may be subject to small modifications as long as they do not involve an alteration of the basic idea of the invention.

Brief description of the drawings

Three figures are included, which are considered sufficient for the correct interpretation of the invention.

Figure 1

It represents, schematically, the front view of the pulley holder support, partially sectioned to better appreciate the details. The following elements have been noted:

1. - Pulley holder support

2. - Housing

3. - Pulley

4. - Bearing

4.1 - Spacer bushing

5. - Axial screw

6. - Nut

6.1 - Self-locking nut

7. - Rope

8. - Platen

9. - Washer

Figure 2

Represents the side view through section (m-m) of the previous figure.

10. - Anchor screw

Figure 3

This figure shows a perspective view of the pulley holder support.

Detailed explanation of embodiments of the invention

Pulley holder support for clothesline (1) (Figs. 1,2 and 3), consisting of an improved support for the usual pulleys of rope clotheslines that extend between two identical supports, which in an embodiment preferred by Its inventor has as its main elements a casing (2), a pulley (3) and a pair of bearings (4).

The housing (2) has a shape similar to a parallelepiped box made of light metal material or hard plastic and is intended to house the pulley mechanism of the clothesline, protecting it from rain and other inclement weather. In order to withstand the significant stresses to which the clothesline pulley is subjected, it is equipped internally with a metal plate (8), in the shape of a “U” that has two or more holes on the side next to the wall to allow passage. to as many anchor screws (10) for securing said wall. Each of the side wings of the “U” has a larger diameter hole than the previous ones to house the axial screw (5) where the pulley mechanism is mounted.

Adjusted to the axial screw (5), two bearings (4) are mounted, which can be ball or roller bearings, being one of those that are protected on both sides to prevent the entry of dust or foreign elements that could lodge between the rolling surface. and balls causing its malfunction. Although the fit of the inner rings of each bearing in the axial screw (5) does not present any play, any possible movement of proximity between the bearings (4) is ensured by the interposition of a spacer bushing (4.1). On the outside of such inner rings, nuts (6) are placed that secure the assembly and prevent the bearings (4) from moving outwards.

The external rings of both bearings (4) are those that support the grooved pulley (3), which is assembled completely adjusted to such external rings as is usual in the assembly of any bearing. As is known, pressure assembly or heating of the external body (in this case, the pulley) is usually used so that the expansion of the material favors the introduction. The cooling and subsequent contraction of the pulley (3) ensure the intimate union between pulley and bearing that is sought.

As for the pulley (3), it is intended to guide the rope (7) of the clothesline, which should be provided with the corresponding tensioner to avoid the formation of pronounced arcs when it supports a lot of clothes.

Finally, as can be seen in detail in (Fig. 1), the axial screw (5) passes through both sides of the casing (2) and that corresponding to that of the plate (8), completing the assembly with washers (9 ) and the self-locking nut (6.1).

This results in a highly consistent mechanical assembly capable of withstanding the high stresses of hanging clothes, with the advantage that the user can move the rope (7) by applying a very small force, which is what the inventor has proposed. with this special setup.

In other embodiments, the inventor simplifies the assembly by placing a single ball or roller bearing or, instead, a bronze bearing, thus offering more economically priced solutions. However, the solution based on bearings is better than the bronze bearing because they do not require periodic greasing according to the current state of the art.

(Fig. 2) represents the device according to the lateral point of view (m-m) indicated in (Fig. 1). The balls are visible as they have not been represented on the side closing sheet.

Finally, (Fig. 3) shows a perspective view of the device of the invention, which does not require further explanation, it being understood that the housing can be designed in any other way that provides due protection to the pulley mechanism and bearings.

It is not considered necessary to make the content of this description more extensive so that an expert in the field can understand the scope and advantages derived from the invention, as well as develop and put into practice its object. However, it must be understood that the invention has been described according to embodiments preferred by the inventor, and may be subject to modifications as long as this does not impact or imply any alteration of the basis of said invention. That is, the terms in which this description of the invention has been stated must always be taken with a broad and non-limiting nature.

Claims (4)

1. Pulley holder support for clothesline, (1) consisting of a support for the usual pulleys of rope clotheslines that extend between two identical supports, characterized by consisting of a housing (2), a pulley (3) and means mechanisms intended to ensure a smooth rotation of the pulley (3) and mechanical means intended to ensure a smooth rotation of the pulley (3) on an axis defined by an axial screw (5), the casing (2) being reinforced by a plate (8), in the shape of a "U" that is fixed to a wall or wall by means of one, two or more anchor screws (10) that also pass through the casing (2) reinforced by a plate (8), in the shape "U" that is fixed to a wall or wall by means of one, two or more anchor screws (10) that also pass through the casing (2), whose side wings have holes to allow the passage and fastening of the axial screw (5). 2. Pulley holder support for clothesline, (1), according to the first claim, characterized in that the mechanical means intended to ensure smooth rotation of the pulley (3) are one or two bearings. 3. Pulley holder support for clothesline (1), according to the first claim, characterized in that the mechanical means intended to ensure smooth rotation of the pulley (3) is a bronze bearing. 4. Pulley holder support for clothesline (1), according to the first claim, characterized by having the position of the bearings (4) secured on the axial screw (5) by means of nuts (6), normal and (6.1) self-locking, a spacer bushing (4.1), in the case of two bearings (4) and washers (9).