CN215911185U

CN215911185U - Tone arm and have record player of this tone arm

Info

Publication number: CN215911185U
Application number: CN202120777288.9U
Authority: CN
Inventors: 刘建国
Original assignee: Dongguan Fannishi Culture Technology Co ltd
Current assignee: Dongguan Fannishi Culture Technology Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-02-25
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a tone arm, which comprises: a base; the bracket is connected with the base through a rotating shaft and can rotate along with the rotating shaft; the singing rod is arranged on the bracket, one end of the singing rod is connected with the pickup, and the other end of the singing rod is provided with a counterweight mechanism for balancing the gravity of the pickup; the bearing stabilizing assembly comprises two bearings and an adjusting piece, wherein the two bearings are respectively arranged on two sides of the position, close to the counterweight mechanism, of the singing rod, the adjusting piece comprises a connecting piece and at least one elastic piece, the singing rod and the bearings are connected with the support through the connecting piece, the elastic piece is sleeved on the connecting piece, two ends of the elastic piece are respectively abutted against the connecting piece and the bearings, elastic stress is applied to the bearings, and therefore the bearings are prevented from being jammed and the singing rod can be stably operated at the axis position. Also discloses a gramophone with the tone arm.

Description

Tone arm and have record player of this tone arm

Technical Field

The utility model relates to the technical field of record equipment, in particular to a tone arm and a gramophone with the same.

Background

The phonograph is a mature and classical sound playing device, and the playing principle is as follows: the disc record is set on the turntable of the record player to rotate, and the stylus of the record arm is contacted with the curved notch of the record player, so as to read out the corresponding sound signal, amplify the signal and play it again. It can be seen that the tone arm is a key component on the black-gum gramophone, which has a great influence on the playback tone quality of the black-gum gramophone, and according to the functional requirements of the tone arm, the arm rod of the tone arm must move sensitively in the horizontal and vertical directions, so the tone arm bearing part mostly adopts a high-quality ball bearing to increase the movement flexibility of the tone arm, the tone arm in the prior art is fixed by the cooperation of a nut, a conical screw and a bearing, however, the tightness of the conical screw directly influences the flexibility of the tone arm, because the fastening mode applies a rigid stress to the bearing, the too tight situation causes the bearing to be jammed, the too loose situation causes the axle center of the tone arm to shake, the tone arm cannot be stabilized at the axle center position, the tone quality is directly degraded, and the assembling worker is required to have a skilled operation experience and a stable working state during the assembling, the time is long, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a tone arm, which solves the above-mentioned problems of the prior art.

Another object of the present invention is to provide a record player, which is suitable for the above-mentioned drawbacks of the prior art.

To solve the above technical problem, according to an aspect of the present invention, there is provided a tone arm including:

a base;

the bracket is connected with the base through a rotating shaft and can rotate along with the rotating shaft;

the singing rod is arranged on the bracket, one end of the singing rod is connected with the pickup, and the other end of the singing rod is provided with a counterweight mechanism for balancing the gravity of the pickup;

the bearing stabilizing assembly comprises two bearings and an adjusting piece, wherein the two bearings are respectively arranged on two sides of the position, close to the counterweight mechanism, of the singing rod, the adjusting piece comprises a connecting piece and at least one elastic piece, the singing rod and the bearings are connected with the support through the connecting piece, the elastic piece is sleeved on the connecting piece, two ends of the elastic piece are respectively abutted against the connecting piece and the bearings, elastic stress is applied to the bearings, and therefore the bearings are prevented from being jammed and the singing rod can be stably operated at the axis position.

The further technical scheme is as follows: the elastic part quantity is one, the connecting piece include bolt post and with this bolt post threaded connection's nut post, bolt post and nut post set up respectively in singing the pole both sides and corresponding to bearing department, and all wear to establish in proper order support, bearing and singing the pole, the elastic part cover is located on the bolt post to with a bearing butt, exert elastic stress to the bearing when connecting piece and bearing cooperation.

The further technical scheme is as follows: the elastic part quantity is two, the connecting piece include bolt post and with this bolt post threaded connection's nut post, bolt post and nut post set up respectively in singing the pole both sides and corresponding to bearing department, and all wear to establish in proper order support, bearing and singing the pole, two the elastic part overlaps respectively and locates on bolt post and the nut post to respectively with a bearing butt, in order to exert elastic stress to the bearing when connecting piece and bearing cooperation.

The further technical scheme is as follows: the tone arm further comprises a clamping device, the clamping device is located on the base, and an arc-shaped surface matched with the tone rod is arranged on the top surface of the clamping device so as to clamp and contain the tone rod.

The further technical scheme is as follows: the support includes the bottom plate and is located the subcase of bottom plate top, the bottom plate passes through rotation axis and pedestal connection, the rod of singing wears to establish the subcase, the connecting piece is connected the rod of singing and subcase.

The further technical scheme is as follows: the base comprises a hollow base column and a base plate sleeved at the top of the base column, the support is installed on the base plate through a screw, the top end of the rotating shaft is connected with the support, and the other end of the rotating shaft is located in the base column so as to drive the support and the base plate to rotate when the rotating shaft rotates.

In order to solve the above technical problem, according to another aspect of the present invention, there is provided a player including a base, a turntable, and the tone arm, wherein the tone arm and the turntable are both disposed on the base, and the tone arm is disposed at a side of the turntable to contact a surface of a record located on the turntable to perform a playing function.

Compared with the prior art, the two sides of the singing rod are provided with the bearings, the support is connected with the bearings and the singing rod through the connecting piece in the bearing stabilizing assembly, the connecting piece is sleeved with the elastic piece, the two ends of the elastic piece are respectively abutted against the connecting piece and the bearings to apply proper elastic stress to the bearings, so that the bearings are limited at specific positions, the rotation flexibility of the bearings can be kept, namely, the elastic piece can be compressed when the connecting piece is tightly matched with the bearings, the phenomenon that the singing rod is influenced by the overlarge friction force of the bearings to influence the normal tracking of a singing needle of the singing arm due to the fact that the elastic piece is compressed when the connecting piece is tightly matched with the bearings is avoided, the singing arm can be stably operated at the axis position, the singing rod is prevented from shaking, deviation of tracking parameters of the singing rod is caused, and therefore, the flexible fixation of the bearings is realized through the elastic piece, can improve tone arm performance, optimize tone quality, and the equipment requirement is lower, has greatly improved production efficiency.

Drawings

Figure 1 is a schematic perspective view of a tone arm embodiment of the present invention.

Figure 2 is a side view of a tone arm embodiment of the present invention.

Fig. 3 is a schematic view of the tone arm of fig. 1 with the housing removed.

Figure 4 is a schematic bottom view of the tone arm of figure 3 with the base and floor removed.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention is further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 4, fig. 1 to 4 show an embodiment of a tone arm 1 according to the present invention. In the embodiment shown in the drawings, the tone arm 1 includes a base 10, a support 20, a tone bar 40, and a bearing stabilizing assembly 70; wherein, the bracket 20 is connected with the base 10 through a rotating shaft 30 and can rotate along with the rotating shaft 30; the singing rod 40 is arranged on the support 20, one end of the singing rod is connected with a pickup, and the other end of the singing rod is provided with a counterweight mechanism 60 for balancing the gravity of the pickup; the bearing stabilizing component 70 comprises two bearings 701 and an adjusting part which are respectively arranged on two sides of the singing rod 40 close to the counterweight mechanism 60, the adjusting part comprises a connecting piece 7021 and at least one elastic piece 7022, the singing rod 40 and the bearings 701 are both connected with the support 20 through the connecting piece 7021, the elastic piece 7022 is sleeved on the connecting piece 7021, two ends of the elastic piece 7021 are respectively abutted against the connecting piece 7021 and the bearings 701, so that elastic stress is applied to the bearings 701, the bearings 701 are prevented from being jammed, and the singing rod 40 can be stably operated at the axis position. Based on the above design, the flexible fixation of the bearing 701 is realized by the elastic element 7022, that is, the elastic element 7022 is compressed when the connecting element 7021 is tightly fitted with the bearing 701 to apply a proper elastic stress to the bearing 701, so that the phenomenon that the normal tracking of the stylus of the tone arm 1 is affected by the excessive friction force of the bearing 701 on the tone lever 40 due to the conventional bearing 701 jamming caused by the excessive applied rigid stress is avoided, and the tone lever 40 can be stably operated at the axial position to avoid the tracking parameter of the tone lever 40 from deviating.

In some embodiments, the number of the elastic members 7022 is set to one, the connecting member 7021 includes a bolt post 7211 and a nut post 7212 in threaded connection with the bolt post 7211, the bolt post 7211 and the nut post 7212 are respectively disposed at two sides of the singing rod 40 corresponding to the bearings 701 and sequentially penetrate the bracket 20, the bearings 701 and the singing rod 40, the elastic member 7022 is sleeved on the bolt post 7211 and abuts against a bearing 701, so as to apply elastic stress to the bearing 701 when the connecting member 7021 is connected and matched with the bearing 701, thereby avoiding the phenomenon of jamming of the bearing 701 caused by the excessive applied rigid stress in the conventional method, and further, the singing rod 40 can be stabilized in the axial position to prevent the singing rod 40 from shaking. Based on this design, two bearings 701 are flexibly and fixedly mounted by the cooperation of the bolt and

nut posts

7211 and 7212 and the elastic member 7022.

Understandably, in some other embodiments, the number of the elastic members 7022 may be two, and two of the elastic members 7022 are respectively sleeved on the bolt column 7211 and the nut column 7212 and respectively abut against a bearing 701 so as to apply elastic stress to the bearing 701 when the connecting member 7021 is coupled with the bearing 701. That is, this embodiment is different from the above-described embodiments in that an elastic member 7022 may be provided in both the bolt column 7211 and the nut column 7212.

With continued reference to fig. 1 and 2, in this embodiment, the tone arm 1 further includes a clamping device 80, the clamping device 80 is located on the base 10, and an arc-shaped surface adapted to the tone bar 40 is provided on a top surface of the clamping device 80 to clamp and accommodate the tone bar 40, so as to limit a front end of the tone bar 40 when in use, and ensure stability of the tone arm 1 in use. Preferably, the tone arm 1 further includes a stop control 90 for lifting the tone lever 40 off the surface of the record when it is desired to stop operation of the tone arm 1, it being understood that the stop control 90 is well known to those skilled in the art and the construction thereof will not be described herein.

In some embodiments, the support 20 includes a bottom plate 201 and a support 202 located above the bottom plate 201, the bottom plate 201 is connected to the base 10 through a rotation shaft 30, the sing rod 40 penetrates through the support 202, and the bolt column 7211 and the nut column 7212 sequentially penetrate through the support 202, the bearing 701 and the sing rod 40. The base 10 includes a hollow base pillar 101 and a base plate 102 sleeved on the top of the base pillar 101, the bracket 20 is mounted on the base plate 102 through a screw, the top end of the rotating shaft 30 is connected to the bracket 20, and the other end of the rotating shaft is located in the base pillar 101, so that the rotating shaft 30 can drive the bracket 20 and the base plate 102 to rotate when rotating.

Understandably, the utility model also provides a player, which comprises a base, a turntable and a tone arm, wherein the tone arm is the tone arm in the embodiment, the tone arm and the turntable are both arranged on the base, and the tone arm is positioned on one side of the turntable and is in contact with the surface of a record positioned on the turntable to realize the playing function. The bearing jamming phenomenon caused by the fact that the traditional method is applied with too large rigid stress can be avoided, the singing rod can be stably operated at the axis position, the singing rod is prevented from shaking, and the performance of the gramophone is more stable.

In summary, the utility model keeps the singing rod at the front end and the rear end of the support balanced through the counterweight mechanism, the bearings are arranged at the two sides of the singing rod, the support is connected with the bearings and the singing rod through the connecting piece in the bearing stabilizing assembly, the connecting piece is sleeved with the elastic piece, and the two ends of the elastic piece are respectively abutted against the connecting piece and the bearings to apply a proper elastic stress to the bearings, so that the bearings are limited at specific positions and the rotation flexibility of the bearings can be kept, namely, the elastic piece can be compressed when the connecting piece is tightly matched with the bearings, thereby avoiding the phenomenon that the singing rod is blocked due to the overlarge rigid stress, the normal tracking of the singing arm needle is influenced by the overlarge friction force of the bearings, and the singing arm can be stably operated at the axis position to avoid the shaking of the singing rod, so as to cause the deviation of the tracking parameters of the singing rod, therefore, the bearing is flexibly fixed through the elastic piece, the performance of the tone arm can be improved, the tone quality is optimized, the assembly requirement is low, and the production efficiency is greatly improved.

The foregoing is considered as illustrative of the preferred embodiments of the utility model and is not to be construed as limiting the utility model in any way. Various equivalent changes and modifications can be made by those skilled in the art based on the above embodiments, and all equivalent changes and modifications within the scope of the claims should fall within the protection scope of the present invention.

Claims

1. A tone arm, said tone arm comprising:

a base;

2. The tone arm of claim 1, wherein: the elastic part quantity is one, the connecting piece include bolt post and with this bolt post threaded connection's nut post, bolt post and nut post set up respectively in singing the pole both sides and corresponding to bearing department, and all wear to establish in proper order support, bearing and singing the pole, the elastic part cover is located on the bolt post to with a bearing butt, exert elastic stress to the bearing when connecting piece and bearing cooperation.

3. The tone arm of claim 1, wherein: the elastic part quantity is two, the connecting piece include bolt post and with this bolt post threaded connection's nut post, bolt post and nut post set up respectively in singing the pole both sides and corresponding to bearing department, and all wear to establish in proper order support, bearing and singing the pole, two the elastic part overlaps respectively and locates on bolt post and the nut post to respectively with a bearing butt, in order to exert elastic stress to the bearing when connecting piece and bearing cooperation.

4. The tone arm of claim 1, wherein: the tone arm further comprises a clamping device, the clamping device is located on the base, and an arc-shaped surface matched with the tone rod is arranged on the top surface of the clamping device so as to clamp and contain the tone rod.

5. The tone arm of claim 1, wherein: the support includes the bottom plate and is located the subcase of bottom plate top, the bottom plate passes through rotation axis and pedestal connection, the rod of singing wears to establish the subcase, the connecting piece is connected the rod of singing and subcase.

6. The tone arm of claim 1, wherein: the base comprises a hollow base column and a base plate sleeved at the top of the base column, the support is installed on the base plate through a screw, the top end of the rotating shaft is connected with the support, and the other end of the rotating shaft is located in the base column so as to drive the support and the base plate to rotate when the rotating shaft rotates.

7. A record player characterized by: the player includes a base, a turntable, and a tone arm of any of claims 1-6 above, the tone arm and turntable both being disposed on the base, and the tone arm being located on a side of the turntable to contact a surface of a record located on the turntable to perform a play function.