MXPA98001517A - Salutation or similar cards - Google Patents

Abstract

A greeting card or the like (144) characterized by a board (2) that forms at least a part of the card and because the board is a distributed-mode acoustic radiator having a transducer (9) fully and exclusively mounted on the radiator to vibrate the radiator to cause its resonance

Description

SALUTATION CARDS OR SIMILAR TECHNICAL FIELD ._a invention refers to greeting cards or similar. BACKGROUND OF THE ART In document GB-A-2262861 a "loudspeaker" is suggested which comprises: a multimodal resonant resonator which is a unitary walled panel formed by two films of material with a spacing core of transversal cellular construction, where the panel is such that it has a ratio between the rigide? of bending < B), in all orientations, - the cube of the mass of the panel per unit surface area μ) of at least 105 '_ n mounting device supporting the panel or the beam on a supporting body, in a free way? an electromechanical drive device connected to the anel that drives a multunodal resonance in the radiator beam in response to a. electrical input inside _ = one ban -3 d frequency t dt "below for the loudspeaker E *. d. mn» - 'nl or CF- -3,239,': &? 7r of MARCO POLO presents cards; ion comprising a tone generator PRESENTATION OF THE INVENTION f to the idadei of the present invention employ members of nature, structure and configuration that can be obtained generally and / or specifically by implementing the teachings of our PCT publication co-pending No W097 / 09842 of the same date as the present.Such members therefore have the ability to sustain and propagate input vibrational energy by curving waves in operative area (s) which are being transversely sloped in relation to the thickening frequently but not necessarily up to the edges of the members), they are configured with or without isotropy of lipid flow to have resonant components of resonant mode distributed over said area (s) in a beneficial way for the connection acoustic ion with ambient air; and have predetermined predetermined locations or sites within said Area for the transducer device, particularly part (s) operationally active) or mobile (s) of the same effective (s) in relation to 3 acoustic vibration activity in di chais) electrical area (s) and signals, have electric lights, which correspond to the acoustic content of such vibrational activity. Possibilities are proposed in the co-pending International Publication No-W0 7, '09842 on the same date as the present one for such members or only "passive" acoustic devices without means of ransd ?. tor, i.omii for example for reverberation or for acoustic filtering or to acoustically "harmonize" a space or room; and in "active" acoustic devices with transducer means, for example in a wide range of sound sources or loudspeakers when they are supplied with input signals for conversion into said sound, or for example as microphones when they are exposed to the sound. sound to be converted into other signals. This invention relates particularly to greeting cards and the like incorporating acoustic devices, for example in the form of loudspeakers. The term "greeting card" encompasses similar cards, for example, advent calendars and the like. Members like the above are referred to herein as radiators in a distributed manner and are characterized as in the above-mentioned PCT application and / or otherwise as specifically indicated herein. The invention is a greeting card or the like having at least one sheet, fitted by a loudspeaker comprising a board forming a sheet of the card and within the board is a member that can hold and propagate a vibrational energy of input by inflection of ond -5 in at least one * re < operative, -μ? ^ ^ e e tending transversely > ~ '? n relation to the thickness μiia h n ^ components d * = »vibration of resonant mode i tri uidos in said at least one area and having predetermined predetermined locations or sites within this area for a transducer device and having a transducer fully and exclusively mounted on said member in one of said locations or places to vibrate the member to cause its resonance forming an acoustic radiator that provides an acoustic output when it resonates. The member may have a cell nucleus located between layers of films. The member may comprise a foamed plastic core placed between craft-type cardboard sheets. The transducer can be a piezoelectric bender. The bender can be crystalline. The card can contain a couple of sheets, and device associated with the leaves to cause the driver to act when one ho travels in relation to the other ho. The card may comprise a signal generator, an amplifier and an electric battery on a card sheet to drive the transducer. The member may be adapted to receive printed material. BRIEF DESCRIPTION OF THE DRAWINGS The invention is illustrated in a diagrammatic manner, by way of example, in the accompanying drawings, in which: Figure 1 is a diagram showing a loudspeaker of t >We will distribute it in accordance with the desirability of our published International Publication No.

W097 / 09842; Figure 2a is a partial section on line A-A of Figure 1; Figure 2b is an enlarged cross-sectional view through a distributed mode radiator of the type illustrated in Figure 2a and showing two alternative constructions; Figure 3 is a perspective diagram of a modality of the greeting card in accordance with the present invention; Figure 4 is a perspective view of a transducer. PREFERRED MODALITIES FOR CARRYING OUT THE INVENTION With reference to Figure 1 of the drawings, a loudspeaker in the form of a panel (81) of the type described and claimed in our international publication co-pending No. 'is illustrated. W097 / 09842 of the same date as the present one comprising a rectangular structure fl) carrying a resilient suspension < 3) around its internal periphery supporting a panel (2) of sound radiation in a distributed manner. A transducer (9), in accordance with that described in figure 4, is assembled completely and exlusively on or within the panel (2) in a predetermined location defined by the dimensions "x" and "y", whose location is calculated in accordance > 3i? what is described in our publication Internaional o-pend? epte No. W097 / 09842 of my present date, to send waves of inflection in the panel to cause the panel to resonate to radiate an acoustic output. The transducer (9) is driven by a signal amplifier (10), for example an audio amplifier, connected to the transducer by means of conductors * 28).

Figures 2a and 2b are partial cross sections through the loudspeaker (81) of Figure 1. Figure 2a shows that the structure (1), border (3) and panel (2) are connected together by respective joints of adhesive bond (20). Suitable materials for the structure include a metal frame and truído, for example aluminum alloy or plastics. Suitable periphery materials include resilient materials such as foam rubber and foam plastic. Suitable adhesives for the joints (20) include epoxy, acrylic and cyano-acrylic adhesives, etc. Figure 2b illustrates, on an enlarged scale, that the panel (2) is a rigid light panel having a core (22) for example of a rigid plastic foam (97) for example cross-linked polyvinyl chloride or a cellular matrix (98). ), that is to say, a honeycomb matrix of sheet metal, plastic or the like, with the cells extending transversely in relation to the plane of the panel, and enclosed by opposite films (21), for example paper, cardboard, plastic or aol? tu .2, je metal. When the films are made of plastic, they are preferably reinforced with fibers, for example carbon, glass, Kevlar (MR) or the like, in an on-demand manner to increase their modulus.

Proposed materials for film layers and reinforcements include carbon, glass, evlar (MR), No e? (MR), ie, aramid fibers etc., in various layers and textures, as well as paper, pressed paper sheets, melamine, and various high-modulus synthetic plastic films, such as Mylar (MR), Kaptan (MR) ), polycarbonate, phenolic plastics, polyester or related plastics, and plastics rested with fibers, etc., as well as sheets or metal sheets. The Vectra grade research of liquid crystal polymer thermoplastics shows that they can be useful for the injection molding of ultra-thin films or smaller sized envelopes, say to the point. 30 cm in diameter. This material forms a crystalline structure oriented in the direction of the injection, a preferred orientation for the good propagation of the acute energy from the point of activation to the perimeter of the. panel. Core layer materials provided include fabricated panels or sheet corrugations or aluminum alloy sheet, or evolve (MR), omex (MR), bound flat papers, and various synthetic plastic films, as well as the icoí e-pandidos or foams or pulp materials, even airgel metals if they are of a sufficiently low density. Some materials suitable for the core layer exhibit effective automatic film formation at the time of manufacture and / or otherwise have sufficient inherent rigidity for use without lamination between the film layers. A high performance cellular core material is known under the trade name "Rohacell" which may be suitable as a radiator panel that does not have films. In practical terms, the objective is a lightness and global rigidity suitable for a particular purpose, which specifically includes contributions of optimization of the core and film layers and transitions between them. The suspension (3) can cushion the edges of the panel (2) to prevent excessive movement of the edges of the panel. Additionally or alternatively, an additional equalization love can be applied, for example in the form of parcels, fixed on the panel at selected positions to dampen an excessive movement to equally distribute the resonance in the panel. The patches can be made from a bitumen-based material, as is commonly used in conventional loudspeaker enclosures or can be made from a resilient or rigid polymeric laminate material. Some materials, especially paper and cardboard.;, and some cores can be of autoamort equal. When desired, the damping can be increased in the construction of the panels by the use of adhesives with resilient hardening instead of rigid hardening. The effective way said selective damping includes specific application on the panel including its laminated material permanently associated with it. Edges and corners can be especially important for dominant and less dispersed low frequency vibration tuner modes. The edge fixation of the damping device can usefully bring a panel with its fully framed sheet material, even though its corners may be relatively free, say for a desired extension to operation at lower frequencies. The fixing can be by means of adhesive or self-adhesive materials. Other forms of useful damping, especially in terms of more useful medium and high frequencies effects can be achieved by means of suitable mass or masses fixed on the sheet material at predetermined effective average localized positions of said area. An acoustic panel in accordance with the above described is b id i re canvas 1. The sound energy that comes from the bottom is strongly related in phase with the energy that comes from the front. Consequently, the benefit of the global addition of the acoustic power in the room, sound energy of uniform frequency distribution, reduced reflection and stationary wave effects and with the advantage of a superior reproduction of the space and natural environment in the reproduction is obtained. of the recorded sounds. While the radiation from the acoustic panel is largely non-directional, the percentage of information related to phase is increased off-axis. For an improved approach of the stereophones image, the placement of the loudspeakers, as frames, at the usual height of a standing person, confers the benefit of a slightly off-axis positioning for the person sitting normally listening thus optimizing the stereo effect. In the same way, the left / right triangular geometry in relation to the listener provides an additional angular component. Therefore, good stereophony can be obtained in this way. There is an additional advantage for a group of listeners compared to conventional loudspeaker reproduction. The intrinsically dispersed nature of the acoustic panel sound radiation gives it a volume of sound that does not obey the law of the reverse of sound. squares of the distance for an equivalent point source. Due to the fact that the lowering of the intensity with the distance is much smaller than what is predicted by the law of the inverse of the squares, then consequently in the case of people who listen and are placed outside the center and not optimally , the intensity field for the loudspeaker promotes a superior stereo effect compared to conventional loudspeakers. This is due to the fact that listeners placed outside the center do not suffer from the double problem due to the proximity to the nearest loudspeaker; firstly, the excessive increase of the sound coming from the nearest speaker, and then the corresponding decrease in volume of the sound coming from the farthest speaker. There is also the advantage of a flat, panel-shaped loudspeaker, lightweight, visually appealing, of good sound quality and requiring only one transducer and no transition for full range sound from each panel diaphragm. Figure 3 illustrates a greeting card or the like (144) incorporating the speaker technology of Figures 1 and 2. The card has the shape of a bent member having a front sheet (145) and a back sheet (146). ). At least the back (146) is made of a composite board consisting of a foam core (22) located between craft-type cardboard films (21) to form a panel (2) distributed-mode acoustic radiator light and rigid of the type described in figures 1 and 2. Such composite boards are known under the trade name KAPPABOARD. It was found that a panel formed in accordance with Se "A" of the European Standard is adequate. A transducer (9) as illustrated in Figure 4 shows on the back sheet (146) to vibrate the panel (2) to cause its resonance to cause an acoustic output. The transducer (9) is driven by a generator unit (112) generator / signal amplifier that is operated by a switch (53) hidden in the card fold in order to operate the signal generator when the card is opened . It will be noted that in this mode no frame (1) or edge (3) is required. Sufficient cushioning of the card is provided either by the material from which the card is made and / or by holding the card or by standing it on a surface. Figure 4 illustrates a transducer (9) for a panel (2) distributed in the form of a disk-shaped piezo bender (27) mounted on a disc (118), for example bronze, bonded on a panel surface (2), for example by means of a union? Dh siva (20). In operation, ^ < = > * p jca an acoustic signal on the fcr nsdu-rtor (9) through conductors (28) that cause the piezo disk (27) s double and consequently deform lens resiliently, locally the panel (2) to send inflection waves in the panel.

Claims (8)

1. CLAIMS 1. A greeting card or similar (144) having at least one ho a (145, 146), characterized by a loudspeaker comprising a board (2) that forms a sheet of the card and where the board is a member (2) having the ability to sustain and propagate an input vibrational energy by inflection waves in at least one operating area that extends transversely relative to the thickness to have resonantly resonant vibration components joined in said at least one area and having predetermined locations or sites redefined within said area for a transducer device and having a transducer (9) mounted totally and exclusively on said member in one of said locations or places to vibrate the member to cause its resonance forming a acoustic radiator that provides an acoustic output when it resonates.
2. 2. A salutation card or similar according to claim 1, characterized in that the member (2) has a cell nucleus (22) which is between layers of skin (21).
3. 3. A similar salutation card according to claim 1 or with the indi ation 2, face erased because the member (2) comprises a core (22) of foam plastic (97) which is between sheets cardboard craft type (21).
4. 4. A greeting card or the like according to any of claims 1 to 3, characterized in that the transducer (9) is a piezoelectric doubler.
5. 5. A greeting card or similar according to claim 4, characterized in that the doubler (*?> Is crystal ino
6. 6. A greeting card or the like according to any of the preceding claims, characterized in that it has a pair of sheets (145, 14") and devices (53) associated with the blades to cause operation of the transducer (9) when one blade is moved relative to the other
7. 7. A salutation card or the like in accordance with the rei indication 6, characterized in that it has a signal generator, an amplifier and an electric battery (112) on a sheet of the card to drive the transducer
8. 8. A greeting card or the like according to any of the preceding claims, characterized in that the member (2) is adapted to receive a printed material.