A kind of piano string is intertwined and connected partTechnical field
The utility model relates to piano manufacturing field, in particular to a kind of piano string is intertwined and connected part.
Background technique
Piano is one of western classical music keyboard instrument, there is the laudatory title of " king of musical instrument ", mainly by key, hit stringHammer and the string opposite with hammerhead is hit composition.Existing piano string includes core string and the winding silk that is wrapped on core string both ends,The winding silk at the core string both ends part that is intertwined and connected respectively with string again is mutually wound, so that core string can tighten sounding.It is existingString is intertwined and connected, and there are Railway Projects for part: since winding silk is wrapped in after string is intertwined and connected on part, beaing hair in long-termAfter sound, winding silk and the string part that is intertwined and connected is be easy to cause to loosen, to lead to piano generation sand sound when playing；AlsoOr, winding silk and string are intertwined and connected, part winds to obtain tension, causes winding silk to deform larger, winding silk is thus caused to snapOr winding silk and the string part that is intertwined and connected loosen.In view of this, it is really necessary to develop a kind of piano string to be intertwined and connectedPart, to solve the above problems.
Utility model content
For the shortcomings of the prior art, the purpose of the utility model is to provide a kind of windings of piano string to connectFitting, the frictional force being intertwined and connected between part by increasing winding silk and piano string, so that winding silk and piano string are woundConnector is wound enough to close, meanwhile, and in the middle section setting winding slack strand of winding silk, winding silk and piano can be preventedThe string part that is intertwined and connected winds to obtain phenomenon of rupture caused by tension, generates husky sound or distorsion so as to avoid piano string,Improve sound quality.
In order to realize above-mentioned purpose according to the present utility model and other advantages, provides a kind of piano string and be intertwined and connectedPart screws section, clamping section and winding section including what is be sequentially arranged along its length, wherein winding section is cylindrical, winds sectionOuter surface on be formed with the winding groove spirally extended along its length.
Preferably, the width of winding groove is as the extending direction of winding groove is in the gesture become narrow gradually after first gradually broadening.
Preferably, gradually wide section of winding groove and tapered section of length ratio are 1:1.
Preferably, the depth of winding groove is as the extending direction of winding groove is in the gesture gradually become shallower as after first gradually deepening.
Preferably, the length ratio of the gradually deep section and gradually shallow section of winding groove is 1:1.
Preferably, the longitudinal cross-section of winding groove is in inverted triangular structure.
Preferably, the helix number of winding groove is odd number.
Preferably, the helix of winding groove is equipped with 5, first be respectively sequentially arranged along the length direction for winding sectionHelix, the second helix, third helix, the 4th helix and the 5th helix.
Preferably, the end for screwing section, which offers, extends to its internal connecting hole.
Preferably, it is clamped the arc-shaped clamping groove that its oriented inner recess is opened up on the periphery of section, it is assumed that be clamped sectionLength is L, and the radius of clamping groove is R, then has L:R=1:1.2.
The utility model compared with prior art, the beneficial effect is that:
1) it, since the width of winding groove is as the extending direction of winding groove is in the gesture become narrow gradually after first gradually broadening, twinesDepth around slot is as the extending direction of winding groove is in the gesture gradually become shallower as after first gradually deepening, so that the middle section of winding silkBe formed with winding slack strand, can prevent winding silk and piano string be intertwined and connected part wind to be broken caused by tension it is existingAs；
2), since the longitudinal cross-section of winding groove is in inverted triangular structure, when winding silk gradually tightly wraps in winding groove,After the clamping for winding inclined-plane of the silk by winding groove two sides diagonally downward, so that winding silk winds further close with winding groove,The slipping phenomenon of winding silk and winding groove can be effectively avoided, part is wound so that winding silk and piano string are intertwined and connectedIt is close enough, effectively eliminate the husky sound phenomenon after piano is used for a long time.
Detailed description of the invention
Fig. 1 is the three-dimensional structure view of part of being intertwined and connected according to piano string described in the utility model；
Fig. 2 is the front view of part of being intertwined and connected according to piano string described in the utility model；
Fig. 3 is the top view of part of being intertwined and connected according to piano string described in the utility model；
Fig. 4 is the longitudinal sectional view of part of being intertwined and connected according to piano string described in the utility model.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, the aforementioned and other mesh of the utility model, features, aspects and advantages will be apparent, to enable those skilled in the art's refer to the instruction text real accordinglyIt applies.In the accompanying drawings, for clarity, shape and size can be amplified, and identical attached drawing mark will be used in all figuresNote is to indicate the same or similar component.In the following description, such as center, thickness, height, length, front, back, rear portion,The words such as the left side, the right, top, bottom, top, lower part are to be based on the orientation or positional relationship shown in the drawings.Particularly, " highDegree " is equivalent to size from the top to the bottom, and " width " is equivalent to size from left to right, and " depth " is equivalent to be arrived in the pastSize afterwards.These relative terms are to be not intended to need specifically to be orientated for convenience and usually.Be related to attachment,Connection etc. term (for example, " connection " and " attachment ") refer to these structures pass through intermediate structure directly or indirectly to one another fixation orThe relationship of attachment and movable or rigidly attached or relationship, unless otherwise clearly stating.
Referring to Fig.1~Fig. 4, piano string be intertwined and connected part 1 include be sequentially arranged along its length screw section 11, cardConnect section 12 and winding section 13, wherein winding section 13 is cylindrical, winds and is formed with spiral shell along its length on the outer surface of section 13The winding groove 131 of rotating extension.
Referring to Fig. 2 and Fig. 3, the width of winding groove 131 with winding groove 131 extending direction in after first gradually broadening graduallyThe gesture to narrow.
In a preferred embodiment, gradually wide section of winding groove 131 and tapered section of length ratio are 1:1.
Further, the depth of winding groove 131 gradually becomes shallower as after gradually deepening with the extending direction of winding groove 131 in elder generationGesture.
In a preferred embodiment, the length ratio of the gradually deep section and gradually shallow section of winding groove 131 is 1:1.
Further, the longitudinal cross-section of winding groove 131 is in inverted triangular structure.
Further, the helix number of winding groove 131 is odd number.
In a preferred embodiment, the helix of winding groove 131 is equipped with 5, respectively the length side along winding section 13To the first helix 1311, the second helix 1312, third helix 1313, the 4th helix 1314 and being sequentially arrangedFive helixes 1315.
Further, the end for screwing section 11, which offers, extends to its internal connecting hole 111.
In a preferred embodiment, it is clamped the arc-shaped clamping groove that its oriented inner recess is opened up on the periphery of section 12122, it is assumed that the length of clamping section 12 is L, and the radius of clamping groove 122 is R, then has L:R=1:1.2.
Number of devices and treatment scale described herein are the explanations for simplifying the utility model.To the utility modelApplication, modifications and variations will be readily apparent to persons skilled in the art.
Although the embodiments of the present invention have been disclosed as above, it is not limited in institute in specification and embodimentsColumn use, it can be applied to various fields suitable for the present invention completely, for those skilled in the art, canEasily realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, this is practicalIt is novel to be not limited to specific details and legend shown and described herein.