CELLO POLISHING STAND

Abstract

The invention relates to a motor-controlled, axially rotatable cello polishing stand used in the process of polishing stringed instruments, particularly cellos, using a hand brush, and capable of adapting to structural differences between the body and neck axes of the instrument. The invention enables the instrument to be rotated without manual intervention during polishing, ensures even access to the polishing surfaces, and allows the polishing process to be carried out with high precision. The cello polishing stand in question generally consists of a motor-driven lower connecting element (1) that attaches to the stem of the cello, a motor connection and support block (3), a low-speed torque DC motor (4), a hinged PVC tube element (24) that grips the neck, a U-shaped support arm (16) that carries this element, multi-directional swivel wheels (17) located on the inner surface of the U-shaped arm, and a wooden frame supporting the entire system.

Description

1 TARIFF CELLO POLISHING STAND TECHNICAL FIELD The invention involves polishing stringed instruments, especially the cello, using a hand brush. 5 structural elements between the body and neck axes of the instrument used in the process a motor-controlled and axially rotatable system that can adapt to differences The invention relates to a cello polishing stand. It allows for the manual polishing of the instrument during the process. rotation without intervention, even access to polishing surfaces ensuring that the polishing process is carried out with high precision. It does. 10 PREVIOUS TECHNIQUE In stringed instruments, varnish is applied at the end of the manufacturing process to protect the wood from environmental influences. protects against, fine-tunes acoustic behavior, and determines optical depth. It is a functional film layer. Film thickness, elasticity, and surface hardness are determined by vibration. By changing the mass and damping parameters in the transmission, the frequency response can be increased by 15. This affects the fiber ends. Therefore, ground / sealer application is used to protect them. checking, balancing the color and preventing excessive penetration, next critical priorities for both the adhesion and acoustic performance of the layers It is accepted. In practice, two main systems stand out: alcohol-based Resin solutions and oil-resin based mixtures. 20 such as shellac, sandara, or benzoe. In spirit polishes where natural resins are dissolved in ethanol, the film is formed by the solvent. It is formed by evaporation; fast drying and easy layering. This is provided, but the load-bearing structure of the upper layer must be able to re-dissolve the layer below. Due to this, there is a risk of burn-in and cloudiness. Like linseed oil. In oil polishes where the dried oils are modified with resin, curing is oxidative. This occurs through polymerization; the flexible film structure is acoustically tolerant. It is accepted that this is the case, but the curing period is long and dusting and leaving marks are problematic. It is stated that they are more susceptible to surface defects such as those mentioned above. Current synthesis-based While durability is ensured with these systems, traditional aesthetics and acoustics are also maintained. It is not always possible to match expectations; therefore, 30 2 Resin / oil / solvent ratios are often formulated by the manufacturer themselves. is being done. The polish is applied mostly by hand or with a brush, in thin layers of low viscosity. This is being done by completing the surface without damaging the "wet transition edge". It is necessary; before an area begins to partially harden, the adjacent 5 It is expected that the polishing process on all surfaces will be completed. Otherwise... Overlapping marks, tonal jumps, and leveling issues occur. Spirit Rapid carrier volatility, brush marks, orange peel, and icing in the systems. It can trigger defects such as (dullening in high humidity); in oil systems, however... Applying the underlying layer before it is fully oxidized can lead to wrinkling, cracking, buckling, and 10 This leads to adhesion problems. Pigment and lacquer density, film Since the thickness and solvent mixture are sensitive to small changes, the interlayer Color differences are frequently observed. Appropriate thinning and adjustment of exposure time are recommended. Controlled temperature-humidity-airflow / UV regulation with inter-layer waiting time, polishing. And these risks can be reduced through micrometric thickness management. All these 15 The parameters address both preservation and aesthetic goals, as well as the instrument's vibration. together to ensure the desired flexible-thin film character in transmission. is being considered. Today, cello (string instrument) polishing processes are generally of two different types. This is done with the help of a support and fixing stand. The first type is C 20. a metal profile in the shape of a metal plate that secures the lower part of the instrument (the pick holder), These are mechanical stands that feature a clamp system at the top that grips the handle. In such systems, the cello is rotated around its axis in order to rotate the cello. Manually loosening the clamp that secures the neck of the instrument by hand. It needs to be turned over and re-secured manually. This process involves polishing 25. slowing down the workflow during this process; the container filled with liquid varnish in the instrument maker's hand and This causes him to constantly put down the brush he uses for polishing. Also... This creates a risk of contact with unglazed surfaces, which can lead to surface damage, fingerprints, This leads to defects such as color tone differences and uneven layer thickness. It opens. 30 In the second type of system, the instrument is a fixed rod mounted on a wooden base. It is fixed in place with the help of these devices. In these arrangements, the instrument remains in a fixed position. 3 The instrument maker has to work in an upright position and during polishing... The angle of access to surfaces is limited. This method is ergonomically inadequate. This negatively affects the polishing quality. In both cases, the current solutions address the misalignment of the cello's body-neck axis. It cannot compensate, does not offer automatic rotation function, and has a delicate polishing function. 5 It is unable to provide the continuous motion control required for its applications. Therefore, the polishing process must be efficient, safe, and preserve surface quality. motor-controlled, capable of compensating for off-center axis, for operation in this manner. A need arose for a foot-operated stand. PURPOSE OF THE INVENTION 10 The main purpose of this invention is to prevent the cello from coming into contact with the hand during polishing. a motor that allows the device to be rotated in a controlled manner around its axis without being moved a driven, axially compatible, and foot-pedal controlled polishing stand It is about developing. Thus, the film formation mechanisms of the varnish types described above are explained as “wet 15 Process sensitivities such as "edge" management and interlayer re-resolution; Even surface coverage, continuous and uninterrupted brush stroke for homogeneous film thickness. This makes it necessary. In the cello, structural asymmetry in the body-neck axes necessitates mass. distribution and access restrictions, overlap mark in manual turning applications, tonnage skipping, solvent opening the substrate and increasing defects such as local thickening 20 It carries a risk. The subject of the invention is a motor-controlled, axially rotating device. Axis-alignable polishing stand; allows the instrument to be held firmly without being touched by hand. by enabling the rotation of a surface portion at repeatable angular velocities Allows for seamless completion of adjacent surfaces before hardening. It provides; maintains a consistent brush flow, film thickness and color uniformity. 25 It balances, reduces the risk of solvent pooling and "burn-in", and minimizes dust and It reduces the risk of contamination. Thus, it is both spirit-based and oil-based. Process parameters are controlled in the systems; application ergonomics and Safety is improving; polishing quality, repeatability and efficiency are increasing. Due to technical requirements, the invention, high-precision polishing on the cello 30 4 making its implementation possible and overcoming the limitations of known hand-assisted solutions It offers a support stand structure. The underlying purposes of the invention are as follows: 1. A device that can compensate for the structural misalignment of the neck and body axes of the cello. to create a mechanism, 5 2. The linear motion of a low-speed, high-torque electric motor is transmitted through a steel spring. converting it to 360° axial rotation movement via its connection, 3. The motor is controlled by a foot switch (foot-operated circuit). by enabling the instrument to be controlled with an on / off switch system. to completely free the maker's hands from holding brushes and polish, 10 4. The turning support piece that grips the handle area is filled with soft material. Hinged and made of PVC material, easy to assemble and disassemble. to ensure it has a structure, 5. The motor power is connected to the "peak" socket of the cello and controlled from the end. 15 despite axial misalignment, thanks to the spring-loaded coupling structure that enables its transfer. to obtain smooth rotational motion, 6. Portability by ensuring the entire structure can be disassembled. to make it packageable and suitable for commercial use, 7. After the polishing process, the instrument can be left to dry partially. To create a secure grip system. 20 BRIEF DESCRIPTION OF THE FIGURES The present invention, briefly summarized above and discussed in more detail below, applications, by referring to the applications of the invention depicted in the attached drawings Understandable. 25 Figure 1: General perspective view of the cello polishing stand, which is the subject of the invention. Figure 2: Side view of the cello polishing stand, which is the subject of the invention. REFERENCE STATEMENTS 30 The corresponding reference numbers shown in the figures are given below. 1. Cello peak input axis fixing and rotating tapered part. 2. Steel spring inside the mast 3. Electric motor mounting and fixing wedge 4. DC low speed torque motor 5 5. Cable hole 6. Battery cover mounting screws 7. Battery compartment cover 8. Foot-operated on / off switch 9. Left post 10 10. Center axis mounting screws 11. Left pillar mounting screws 12. Central connecting post 13. Stand right foot 14. Stand right post 15 15. Cello neck guide and turning washer 16. Cello neck steering and turning device 17. Wheels 18. Peak guide joint ball bearing and steel spring bearing. 19. Cable channel cover 20 20. Cable 21. Tos jack mounting plate and screws 22. Tos jack input header 23. Wheel fixing pins and bearings 24. Cello neck turning device 25 DETAILED DESCRIPTION OF THE INVENTION The subject of this invention is a cello polishing stand in general; A motor-driven lower coupling (1) is attached to the peak socket of the cello, motor connection and support wedge (3), low speed torque DC motor (4), 30 • Hinged PVC pipe element (24) that grips the handle part, • U-shaped support arm (16) carrying this element, • Multi-directional swivel wheels located on the inner surface of the U-shaped arm (17), 6 • and consists of a wooden frame that supports the entire system. Lower Connection Mechanism (Motorized Peak Tip) (1): The connector located on the left side of the stand will fit into the peak socket of the cello. It is designed in this way. This section contains a low-speed (approximately 5-7 RPM) (in the range) but it features a high-torque electric motor. The rotation of the motor The motion is not transmitted directly through a rigid linkage, but through a steel helical spring. This spring transmits the linear rotational motion produced by the motor in a flexible manner. by transferring the misalignment between the neck and body axes of the cello. It balances itself. This allows the instrument to rotate smoothly around its true axis. It can rotate. Sap Connector (24): The vertical arm located on the right side of the stand is divided into two sections at the top by hinges. A PVC pipe holder with an inner surface filled with soft material, approximately 50 mm in diameter. 15 It contains this element, designed to grip the cello neck circumferentially. It is closed, wrapped, and secured with Velcro. Thanks to its PVC structure, it fits the instrument. It provides a stable grip without causing damage. U-shaped Rotation Mechanism (16): 20 The U-shaped bearing section where the PVC pipe sits can rotate on its own axis. and also via four small wheels located inside the PVC pipe It allows the instrument to move along both the circumferential and horizontal axes. This structure enables the instrument to... rotates freely and moves without creating resistance to motor movement. It enables it to do so. 25 Motor Control System (8): The motor's operation is controlled via a foot pedal (foot switch). Thus The stringed instrument maker, holding the varnish pot in one hand and the brush in the other, stood on the stand. The rotation speed and direction can be controlled with foot pedal control. This feature allows for 30 rotations during polishing. It makes the workflow seamless. Body and Supporting Structure: 7 All the stand's body components are made of wood and can be easily disassembled. It is equipped with screw-on mounting elements. This feature allows the device to be mounted. It facilitates commercial packaging, transportation, and storage. TECHNICAL ADVANTAGES PROVIDED BY THE INVENTION 5 - Despite the axial misalignment between the neck and body of the cello, it is smooth. and balanced rotation is ensured. - No manual intervention required, thus minimizing the risk of damaging polishing surfaces. It disappears. - Foot switch control 10 Thanks to this, labor costs are reduced and processing times are shortened. - Thanks to the rotating mechanism, the varnish layers are applied homogeneously, tone-wise and the risk of density difference is reduced. - Production, transportation and storage are facilitated because the structure is demountable (can be disassembled and reassembled). The costs are low. 15 - The instrument is safely placed on the stand after processing to allow for pre-temperature drying. It can be left behind.

Claims

8 REQUESTS 1- Designed for polishing the cello, the instrument's axis is cleaned without manual contact. It is a polishing stand that allows the cello to be rotated around its base; its feature is that it is positioned at the bottom of the cello. a wooden connecting end (conical hose) (1) which is attached to the socket located in this part, this 5 a low-speed, high-torque DC electric motor integrated into the connection point (2), which flexibly transmits the rotational movement of the motor to the connection end attached to the peak, a steel spring (3) that converts linear motion into axial motion, the neck of the cello a part that is surrounded by circumference, can be separated into two by hinges, and has a soft inner surface a PVC pipe holder with material filling (4), carrying the said PVC holder and U 10 A carrier arm (5) that is shaped in the form of a U-shaped arm and can rotate on its own axis positioned on the inner surface, the stem connection pipe on the circumferential and horizontal axes. Multiple fixed wheels (6) that allow movement, the motor to be operated by foot a pedal switch (foot switch) system (7) used to control these elements, and It consists of a demountable wooden frame (8) that supports it. 15 2- In the polishing stand specified in Claim 1; the torque movement of the steel spring (3) motor (2). by flexibly transferring it to the connecting end (1) attached to the pike, the body and neck of the cello It is characterized by its ability to compensate for the angular misalignment between its axes. 3- On the polishing stand specified in Claim 1; on the inner surface of the PVC pipe holder (4) The sponge material used provides a firm grip without damaging the neck surface of the instrument. 20 It is characterized by its reliability. 4- In the polishing stand specified in Claim 1; the U-shaped carrier arm (5) has both its own It has a structure that can rotate on its axis and the wheels located inside (6) thanks to which the PVC pipe holder (4) can move in the circumferential and horizontal axes. It is characterized by its ability to give. 25 5- In the polishing stand specified in Claim 1; the electric motor (2) is low speed, It has a high-torque structure, which allows the instrument to rotate axially. It is characterized by its movement occurring in a controlled and stable manner. 6- On the polishing stand specified in Claim 1; the motor (2) is started by the foot pedal. (7) is done through which the user can work hands-free. 30 It is characterized by its reliability. 9 7- On the polishing stand specified in Claim 1; the metal body structure (8) is disassembled and Its composition of attachable components makes the device portable, packable, and commercially viable. It is characterized by being suitable for use. 8- On the polishing stand specified in Claim 1; after the cello's polishing process The device can be kept stable on the stand until it is partially dry. 5 It is characterized by having a stable structure and a center of balance.

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