阅读说明：本技术 一种直排冷凝式衣物烘干装置 (Direct-discharge condensing clothes drying device ) 是由 陈小平 李宁宁 徐剑 李毅 朱博 刘军 于 2020-03-27 设计创作，主要内容包括：本发明涉及一种直排冷凝式衣物烘干装置,包括：外筒；用于容纳衣物的内筒,内筒设置于外筒中并与外筒连通,湿热空气能够由内筒进入外筒；冷凝器,连通外筒并用于冷凝由外筒进入该冷凝器的湿热空气；进风风道,一端与冷凝器连通,另一端与内筒连通,通过冷凝器的空气由进风风道供入内筒；排风风道,外筒连通排风风道,以将外筒内部分湿热空气通过排风风道排出外筒；新风风道,冷凝器连通新风风道,以将外筒外的空气通过新风风道送入冷凝器；新风风道上设置的能够打开或关闭的风门,控制外筒外的空气的进入,以使得衣物烘干装置具有直排和/或冷凝的烘干方式。可降低烘干温度,缩短烘干时间,减少衣服的损伤和褶皱。(The invention relates to a direct-discharge condensing clothes drying device, which comprises: an outer cylinder; the inner cylinder is used for accommodating clothes, the inner cylinder is arranged in the outer cylinder and communicated with the outer cylinder, and the damp and hot air can enter the outer cylinder from the inner cylinder; the condenser is communicated with the outer cylinder and is used for condensing the hot and humid air entering the condenser from the outer cylinder; one end of the air inlet duct is communicated with the condenser, the other end of the air inlet duct is communicated with the inner cylinder, and air passing through the condenser is fed into the inner cylinder through the air inlet duct; the outer cylinder is communicated with the exhaust air channel so as to discharge the hot humid air in the outer cylinder out of the outer cylinder through the exhaust air channel; the condenser is communicated with the fresh air duct so as to send air outside the outer cylinder into the condenser through the fresh air duct; the air door which can be opened or closed and is arranged on the fresh air duct controls the air outside the outer barrel to enter, so that the clothes drying device has a direct-discharge and/or condensation drying mode. The drying temperature can be reduced, the drying time can be shortened, and the damage and the wrinkles of clothes can be reduced.)

1. The utility model provides a direct row condensing clothing drying device which characterized in that includes:

an outer cylinder; the inner drum is used for accommodating clothes, the inner drum is arranged in the outer drum and communicated with the outer drum, and the damp and hot air can enter the outer drum from the inner drum;

the condenser is communicated with the outer cylinder and is used for condensing the hot and humid air entering the condenser from the outer cylinder;

one end of the air inlet duct is communicated with the condenser, the other end of the air inlet duct is communicated with the inner cylinder, and air passing through the condenser is supplied to the inner cylinder from the air inlet duct;

the outer barrel is communicated with the exhaust air duct so as to discharge the hot humid air in the outer barrel out of the outer barrel through the exhaust air duct;

the condenser is communicated with the fresh air duct so as to send air outside the outer cylinder into the condenser through the fresh air duct; the fresh air duct is provided with an air door capable of being opened or closed, and the air door controls the air outside the outer cylinder to enter, so that the clothes drying device has a direct-discharge and/or condensation drying mode.

2. The in-line condensing laundry drying device of claim 1, wherein the damper has an adjustable opening degree, which is a percentage of a ventilation area to the whole damper, ranging from 0% to 100%.

3. The in-line condensing clothes drying apparatus as claimed in claim 1, wherein the exhaust duct is provided with a sensor for acquiring environmental parameters, and is capable of transmitting signals to control the opening or closing of the damper.

4. The in-line condensing laundry drying device of claim 3, wherein the sensor is a temperature sensor and/or a humidity sensor to obtain the temperature and/or humidity of the air in the exhaust duct.

5. The in-line condensing clothes drying apparatus as claimed in claim 1, wherein the air intake duct is provided with a heater for heating air flowing from the condenser into the air intake duct, including condensed air and/or outside air introduced into the condenser.

6. The in-line condensing laundry drying device of claim 5, wherein the heater is a heating wire, a heating pipe, or a heating sheet.

7. The in-line condensing clothes drying apparatus as claimed in claim 5, wherein a blower is installed on the intake air duct to accelerate air circulation in the intake air duct.

8. The in-line condensing laundry drying apparatus as claimed in claim 1, wherein the inner tub has a plurality of through holes formed on a sidewall thereof to communicate with the outer tub, so that the hot and humid air in the inner tub can reach the outer tub through the through holes.

9. The in-line condensing type clothes drying apparatus as claimed in claim 1, further comprising a drain duct having one end communicating with the tub and the condenser and the other end being a drain opening communicating with the outside to drain water in the tub and the condenser.

10. The in-line condensing laundry drying apparatus of claim 9, wherein a drain pump is provided on the drain duct.

11. The in-line condensing clothes drying apparatus as claimed in claim 1, wherein the outer tub is provided with an exhaust air inlet, one end of the exhaust air duct is connected to the exhaust air inlet, the other end is an exhaust air outlet, and the hot and humid air in the outer tub enters the exhaust air duct through the exhaust air inlet and is exhausted from the exhaust air outlet.

12. The in-line condensing clothes drying device as claimed in claim 1, wherein the condenser is provided with a fresh air outlet, one end of the fresh air duct is connected with the fresh air outlet, the other end of the fresh air duct is a fresh air inlet communicated with the outside, and the air outside the device enters the fresh air duct from the fresh air inlet and enters the condenser through the fresh air outlet.

13. The in-line condensing laundry drying apparatus of any one of claims 1 to 12, wherein the laundry drying apparatus is a dryer or an all-in-one washer dryer.

Technical Field

The invention relates to the technical field of drying for clothes care, in particular to a direct-discharge condensing type clothes drying device.

Background

At present, the principle of condensation cycle drying of a conventional clothes drying device, such as a dryer and a washing and drying all-in-one machine, is generally that, in a system, air is heated by a heater and enters a drying drum, water on clothes is evaporated and forms damp and hot air with the air under the action of hot air, then the damp and hot air enters a condenser, the damp and hot air is condensed into condensed water and dry gas under the action of a cooling medium in the condenser, and the dry gas enters the drum after passing through the heater for heating, so that the purpose of drying the clothes is achieved after the circulation. By using the traditional condensation circulation drying mode, especially in the later stage of the drying process, when the moisture content of air is lower, the condensation efficiency is rapidly reduced, and the drying time is longer; meanwhile, the air is heated circularly, so that the temperature is too high, the clothes are easily damaged, and the clothes are easily wrinkled; the direct-exhaust drying is adopted, although the temperature is low when the drying is finished, the clothes are protected, but the drying efficiency in the early drying stage is low; there is a need for a drying apparatus that combines the advantages of direct venting and condensation, respectively, to optimize the existing drying apparatus layout.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a direct-discharge condensing clothes drying device.

The technical scheme of the invention is summarized as follows:

the invention provides a direct-discharge condensing clothes drying device, which comprises:

an outer cylinder; the inner drum is used for accommodating clothes, the inner drum is arranged in the outer drum and communicated with the outer drum, and the damp and hot air can enter the outer drum from the inner drum;

the condenser is communicated with the outer cylinder and is used for condensing the hot and humid air entering the condenser from the outer cylinder;

one end of the air inlet duct is communicated with the condenser, the other end of the air inlet duct is communicated with the inner cylinder, and air passing through the condenser is supplied to the inner cylinder from the air inlet duct;

the outer barrel is communicated with the exhaust air duct so as to discharge the hot humid air in the outer barrel out of the outer barrel through the exhaust air duct;

the condenser is communicated with the fresh air duct so as to send air outside the outer cylinder into the condenser through the fresh air duct; the fresh air duct is provided with an air door capable of being opened or closed, and the air door controls the air outside the outer cylinder to enter, so that the clothes drying device has a direct-discharge and/or condensation drying mode.

Preferably, the air door has an adjustable opening, the opening is the percentage of the ventilation area in the whole air door, and the opening range is 0% to 100%.

Preferably, a sensor for acquiring environmental parameters is arranged on the exhaust air duct, and can transmit signals to control the opening or closing of the air door.

Preferably, the sensor is a temperature sensor and/or a humidity sensor to acquire the temperature and/or the humidity of the air in the exhaust air duct.

Preferably, the air inlet duct is provided with a heater for heating air flowing from the condenser into the air inlet duct, including condensed air and/or outside air entering the condenser.

Preferably, the heater is a heating wire, a heating pipe or a heating sheet.

Preferably, the air inlet duct is provided with a fan to accelerate air circulation of the air inlet duct.

Preferably, the side wall of the inner cylinder is provided with a plurality of through holes communicated with the outer cylinder, so that the hot and humid air in the inner cylinder can reach the outer cylinder through the through holes.

Preferably, the water-cooled condenser further comprises a water drainage pipeline, wherein one end of the water drainage pipeline is communicated with the outer cylinder and the condenser, and the other end of the water drainage pipeline is a water drainage port communicated with the outside so as to drain water in the outer cylinder and the condenser.

Preferably, a drainage pump is arranged on the drainage pipeline.

Preferably, the outer cylinder is provided with an exhaust inlet, one end of the exhaust air duct is connected with the exhaust inlet, the other end of the exhaust air duct is an exhaust outlet, and the damp and hot air in the outer cylinder enters the exhaust air duct through the exhaust inlet and is discharged out of the device through the exhaust outlet.

Preferably, a fresh air outlet is formed in the condenser, one end of the fresh air duct is connected with the fresh air outlet, the other end of the fresh air duct is communicated with an external fresh air inlet, and air outside the device enters the fresh air duct from the fresh air inlet and enters the condenser through the fresh air outlet.

Preferably, the clothes drying device is a dryer or a washing and drying integrated machine.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a direct-exhaust condensing clothes drying device, wherein a condenser is used for condensing circulating air for drying, wet and hot air is discharged through an exhaust air duct directly communicated with an outer barrel, external dry and cold air is fed through a fresh air duct communicated with the condenser, and clothes are dried by adopting a condensing and direct-exhaust combined or independent mode, so that the temperature in the drying process can be reduced, the drying time is greatly shortened, and the damage and wrinkles of clothes are reduced; in addition, the air exhaust duct is provided with a sensor, the fresh air duct is provided with an air door, and the opening and closing or the opening adjustment of the air door can be controlled through parameter data of the sensor, so that the aim of optimally controlling drying in real time is fulfilled.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic view of the internal structure of the in-line condensing type clothes drying apparatus according to the present invention;

fig. 2 is a schematic perspective view illustrating an in-line condensing type clothes drying apparatus according to the present invention.

Description of reference numerals:

1-a box body; 11-a back panel; 12-a front plate; 121-door covers; 122-a panel; 13-upper top plate;

2-inner cylinder; 3-outer cylinder; 4-a condenser;

5-air inlet duct; 51-a fan; 52-a heater; 53-air inlet outlet;

6-air exhaust duct; 61-air exhaust inlet; 62-an exhaust outlet; 63-a sensor;

7-fresh air duct; 71-fresh air outlet; 72-fresh air inlet; 73-a damper;

8-a drainage pipeline; 81-a water outlet; and 82, draining pump.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1, the direct-exhaust condensing type clothes drying apparatus of the present invention comprises an outer tub 3; an inner drum 2 for accommodating the clothes, the inner drum 2 being disposed in the outer drum 3 and communicating with the outer drum 3, the damp and hot air being able to enter the outer drum 3 from the inner drum 2; a condenser 4 communicating with the outer tub 3 and cooling the hot and humid air introduced from the outer tub 3 into the condenser 4; one end of the air inlet duct 5 is communicated with the condenser 4, the other end of the air inlet duct is communicated with the inner cylinder 2, and the condenser 4 supplies condensed air to the inner cylinder 2 through the air inlet duct 5; the outer barrel 3 is communicated with the exhaust air duct 6 so as to discharge the hot humid air in the outer barrel 3 out of the outer barrel 3 through the exhaust air duct 6; the fresh air duct 7 is communicated with the condenser 4, so that air outside the outer cylinder 3 is sent into the condenser 4 through the fresh air duct 7; the air door 74 which can be opened or closed and is arranged on the fresh air duct 7 controls the air outside the outer cylinder 3 to enter, so that the clothes drying device has a direct-exhaust and/or condensation drying mode; when the air door 74 is closed, the direct-exhaust drying mode is closed, and the device adopts a condensation drying mode; when the air door 74 is opened, the system has a direct-exhaust drying mode, and can adopt an independent direct-exhaust drying or direct-exhaust condensation combined drying mode to achieve a better drying effect, reduce the temperature in the drying process, greatly shorten the drying time and reduce the damage and wrinkles of clothes.

In some embodiments, the damper 74 has an adjustable opening, the opening being a percentage of the total damper area that is ventilated, the opening ranging from 0% to 100%; the size that makes the air door can be adjusted and opened, the adjustment is arranged directly the way and is got into the how much of device's outside air, especially in the combined drying mode of directly arranging condensation, can adjust control drying air according to the demand, reaches more stoving effect.

In some embodiments, the exhaust air duct 6 is provided with a sensor 63 for acquiring environmental parameters, which can transmit signals to control the opening or closing of the damper 73, and dynamically control the condensation and direct discharge modes according to the environmental parameter change of the exhaust air duct 6, so as to achieve the purpose of real-time and optimized control of drying.

In some embodiments, the sensor 63 is a temperature sensor and/or a humidity sensor to obtain the temperature and/or humidity of the air in the exhaust duct 6, and the temperature and/or humidity can be used as a parameter to close, open, and adjust the opening of the damper 73 when a certain temperature and/or humidity condition is reached.

In some embodiments, the air intake duct 5 is provided with a heater 52 for heating air flowing from the condenser 4 into the air intake duct 5, including condensed air and/or ambient air entering the condenser; specifically, the damp and hot air entering the condenser from the outer cylinder is condensed to form dry and cold air, or the fresh air entering the condenser 4 from the fresh air duct 7 can enter the air inlet duct 5, is heated by the heater 52 and is used for drying the clothes in the inner cylinder 2; the heater may be a heating wire, a heating tube, or a heating sheet.

In some embodiments, the fan 51 is disposed on the air inlet duct 5 to accelerate the air circulation of the air inlet duct 5, and for example, the fan may be disposed at a position far away from the air inlet outlet 53 (the connection between the air inlet duct and the inner cylinder) relative to the heater 52 in the air inlet duct 5 to accelerate the air flow, and the use of the fan will not be affected by the heated air flow.

In some embodiments, the inner cylinder 2 is provided with a plurality of through holes (not shown) on the sidewall thereof, which are communicated with the outer cylinder 3, so that the hot and humid air in the inner cylinder 2 can reach the outer cylinder 3 through the through holes; especially in washing and drying machines, the through holes are usually used for water supply in the washing process and for air supply in the drying process.

In some embodiments, further, the drying device further comprises a drainage pipeline 8, one end of the drainage pipeline 8 is communicated with the outer cylinder 3 and the condenser 4, and the other end of the drainage pipeline 8 is a drainage port 81 communicated with the outside so as to drain water generated in the outer cylinder 3 and/or the condenser 4 out of the box body 1; further, a drain pump 82 may be provided at the drain line 8 to accelerate the draining and drain the water from the drain port 81 to the outside, for example, a sewer or the like at home.

In some embodiments, the outer tub 3 is provided with an exhaust inlet 61, one end of the exhaust air duct 6 is connected to the exhaust inlet 61, and the other end is an exhaust outlet 62, and the hot and humid air in the outer tub 3 enters the exhaust air duct 6 through the exhaust inlet 61 and is exhausted from the exhaust outlet 62.

In some embodiments, the condenser 4 is provided with a fresh air outlet 71, one end of the fresh air duct 7 is connected to the fresh air outlet 71, the other end of the fresh air duct is a fresh air inlet 72 communicated with the outside, and air outside the device enters the fresh air duct 7 through the fresh air inlet 72 and enters the condenser 4 through the fresh air outlet 71.

In some embodiments, the device may be provided with an external housing that serves as an external housing for the device and houses the above components.

In some embodiments, the fresh air inlet 72 of the fresh air duct 7 may be disposed on the front plate 12, the back plate 11, or the upper top plate 13 of the box 1, which is convenient for installation of the fresh air duct 7, and may be selected according to specific situations, such as a general drying device, in which, relatively speaking, the space outside the front plate 12, the back plate 11, or the upper top plate 13 of the box is large, the air flow is good, the influence on the air entering the fresh air duct 7 is small, and the installation at this position may be selected; preferably, it may be provided on the front plate 12; because drying device (especially wash dry all-in-one) often installs in the house balcony, the bathroom etc. is close to the place of wall, or the laundry platform below, the circulation of air is poor, the new trend that new trend entry 72 of conventional mode (last roof 13 or postnotum 11) sent into has the peculiar smell, the dust is big, the also more installation in postnotum position of the export of airing exhaust of prior art simultaneously, be close to with the new trend entry, also can cause the new trend temperature of sending into to be high, be unfavorable for the stoving, and set up new trend entry 72 at the front bezel 12 of box, the air of inflow is overtaken, and also do benefit to the user and observe the circulation of air situation.

In some embodiments, the fresh air inlet 72 is disposed on the panel 122 of the front plate 12 of the box 1 for controlling the states of the operating device and the display device, when the drying device is in operation, a user generally operates the control panel and views the display panel, the fresh air inlet 72 is disposed on the panel for facilitating the viewing of the user, and the air entering the fresh air also flows into the dryer in a relatively spacious environment, the control panel and the display panel of the dryer (washing and drying integrated machine) are generally disposed at a position close to the upper edge of the front plate for facilitating the operation and viewing of the user, and the air circulation at the position is good for facilitating the viewing of the user, so that the fresh air inlet is disposed at the position for facilitating the good air of the fresh air entering the drying system and facilitating the viewing of the user.

In some embodiments, an air filtering device 74 is disposed in the fresh air duct 7 to purify the air entering the fresh air duct 7 from the outside; the air filtering device 74, such as a filter screen, an adsorption sheet, a dust removing device, etc., is provided to adsorb dust and impurities in the air, and also to adsorb peculiar smell in the air, so that the air entering the fresh air duct 7 is purified, thereby ensuring the cleanness of the air source in the drying process and keeping the cleanness and sanitation of the dried clothes.

In some embodiments, the air filter 74 is removably mounted to the fresh air inlet 72, and the air filter absorbs saturated and accumulates dirt over a period of time, and needs to be replaced or cleaned at regular intervals, so that the user can replace the air filter conveniently; furthermore, the air filter device can be arranged at the fresh air inlet 72, so that a user can rapidly detach the air filter device without detaching the air filter device, and the air filter device is convenient to re-install; further, in the embodiment where the fresh air inlet 72 is disposed on the panel 122, the user can also conveniently check the usage of the air filter 74 in real time, and timely detach, clean and replace the air filter 74.

In some embodiments, the exhaust air outlet 62 of the exhaust air duct 6 may be provided at the rear back panel of the cabinet or the upper ceiling panel of the cabinet.

In some embodiments, the air exhaust duct can be detachably mounted on the upper top plate of the box body, so that a user can conveniently check the condition of the air exhaust duct, and the air exhaust duct can be maintained without disassembling the air exhaust duct; in some corresponding embodiments, when the exhaust air duct is provided with the sensor, the sensor can be arranged in the exhaust air duct of which the part is detachably arranged on the upper top plate of the box body, so that the maintenance and the replacement are convenient.

In some embodiments, the front plate 12 of the casing is provided with a feeding opening for feeding the clothes into the inner drum 2, and a door cover 121 capable of opening or closing the feeding opening, the clothes can be fed into the inner drum 2 through the feeding opening, wherein the air inlet 53 can be arranged at the door seal of the feeding opening, so that the air in the air inlet duct 5 can smoothly enter the inner drum 2 through the air inlet 53.

In some embodiments, the laundry drying apparatus is a dryer or a washer dryer, and in the case of a washer dryer, the laundry drying apparatus has a washing structure and a washing function, and more preferably, a drum washer dryer.

Specifically, in the condensing mode, hot and humid air formed by drying clothes in the inner drum 2 enters the outer drum 3 through the through holes, the hot and humid air enters the condenser 4 through a corrugated pipe connected between the outer drum 3 and the condenser 4, dry and cold air is formed after heat exchange in the condenser 4, the dry and cold air enters the air inlet pipeline 5, the dry and cold air is driven by the fan 51 to flow and is heated by the heater 52 to form hot and dry air, and finally the hot and dry air enters the inner drum 2 through the air inlet outlet 53, so that circulation is realized.

Specifically, in a direct exhaust mode, the air door 73 can be opened, so that outside fresh air enters the fresh air duct 7 and then enters the condenser 4 or directly enters the air inlet pipeline 5, so that the temperature of the whole drying cycle is reduced, the damp and hot air partially enters the exhaust air duct 61 through the exhaust air inlet 6 at the joint of the air inlet pipeline 6 and the inner cylinder 3 and is exhausted to the outside through the exhaust air outlet 62, and the first exhaust air duct 601 is arranged to be embedded in the upper top plate of the box body, so that the observation and the maintenance are convenient; in some cases, for example, the back panel of the drying device installed by the user is close to the wall, which results in no circulation of the air after the air is exhausted, and the upper surface thereof is spacious, the exhaust outlet 62 can also be arranged on the top plate 13 of the box body, as shown in fig. 1, so as to achieve the purposes of smooth exhaust and convenient maintenance, and of course, the exhaust air duct 6 may also have a second exhaust air duct (not numbered, specifically, a vertical section led out from the outlet position of the exhaust outlet 61 of the outer barrel in the figure) in the box body; further, a sensor 63 on the exhaust air duct 6 measures the temperature and/or humidity on the exhaust air duct 6 in real time, and controls the opening of an air door 73 according to the temperature and/or humidity condition and a program set by the system, external fresh air enters from a fresh air inlet 72 arranged on the front plate 12, and the opening of the air door 73 controls the air volume of the fresh air duct 7 entering the condenser 4 from a fresh air outlet 71; meanwhile, part of the damp and hot air in the outer cylinder 3 enters the exhaust air duct 6 through the exhaust inlet 61 and is exhausted to the outside through the exhaust outlet 62, so that the directly exhausted air quantity is controlled, and the drying temperature is controlled in real time by adopting a mode of combining part of directly exhausting and condensing or a switching mode of directly exhausting and condensing; after drying a certain degree, can close the condenser, adopt the mode of directly discharging completely to dry, finally improve the stoving effect, reduce the temperature, the protection clothing, and new trend entry 72 sets up in front bezel 12, specifically can be on panel 122, more convenience of customers looks over, and have higher cleanliness factor, set up air filter 74, do not introduce foreign matter or peculiar smell in the assurance stoving clothing, and air filter 74 demountable installation is in front bezel 12's new trend entry 72 department, convenient the change.

While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.