A novel mechanical massage collapsible structure for seat backrests

Abstract

This utility model relates to a novel collapsible structure for a seat back mechanical massage function, comprising: a mechanical massage assembly mounted on the seat back frame; the mechanical massage assembly including: a mechanical massage track frame mounted on the seat back frame; and a mechanical massage drive mechanism mounted on the mechanical massage track frame. The mechanical massage drive mechanism is mounted on the mechanical massage track frame via synchronizer rods extending from both sides and drives the massage mechanical arm to swing. A damper is installed between the synchronizer rods and the massage mechanical arm. The mechanical massage drive mechanism drives the massage mechanical arm to swing via the damper on the synchronizer rods. When the mechanical massage drive mechanism is subjected to an external impact force, the damper is subjected to a set force, triggering the damper sleeve to unlock, causing the massage mechanical arm to quickly return to its initial position. The advantages of this utility model are: the collapsible structure can work in conjunction with the massage function, neither affecting the normal use of the massage function nor hindering the safety of the occupants in the event of an accident.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a novel mechanical massage collapsible structure for a seat back. Background Technology

[0002] With the increasing popularity of automobiles, people's demands for car comfort are also rising. More and more car seats are equipped with massage mechanisms to relieve driver and passenger fatigue and improve the riding experience. However, most existing car seat massage mechanisms do not consider safety in emergency situations. When a vehicle experiences an accidental collision or sudden braking, the body will move rapidly backward or forward, and the driver and passengers will be subjected to a large impact force. If the massage mechanism cannot collapse in time, its massage heads, massage brackets, and other components may cause secondary injuries to the driver and passengers, seriously threatening their lives. For example, Chinese patent CN219446802U discloses a rapid collapse device for a car massage seat. This device can realize the rapid return of the mechanical massage structure, but it has the following drawbacks: 1) In an emergency, this structure achieves the collapse of the massage mechanism through the overload of the airbag in the lower connecting mechanism. If the airbag leaks or fails to rupture properly, the collapse function will fail, and the reliability of this structure is relatively poor; 2) This structure uses airbags and other structures to achieve the collapse function, and the parts structure is relatively complex, making maintenance difficult and costly. Utility Model Content

[0003] In view of the above problems, the purpose of this utility model is to provide a new type of mechanical massage collapsible structure for seat back that is simple in structure, safe and reliable, and responds quickly, so as to provide a safer and more reliable riding environment for drivers and passengers and overcome the shortcomings of the prior art.

[0004] This utility model provides a novel mechanical massage collapsible structure for a seat back, comprising: a mechanical massage assembly mounted on a seat back frame; the mechanical massage assembly includes: a mechanical massage track frame mounted on the seat back frame; and a mechanical massage drive mechanism mounted on the mechanical massage slide frame. The mechanical massage drive mechanism is mounted on the mechanical massage track frame via synchronizer rods extending from both sides and drives the massage mechanical arm to swing. The improvement is that a damper is installed between the synchronizer rod and the massage mechanical arm. The mechanical massage drive mechanism drives the massage mechanical arm to swing via the damper on the synchronizer rod. The outer shell of the damper is fixedly connected to the massage mechanical arm. The damping sleeve of the damper is fitted onto the synchronizer rod. When the mechanical massage drive mechanism moves via the synchronizer rod, it increases the damping of the damper, but does not reach the set damping value, and the mechanical massage drive mechanism operates normally. When the mechanical massage drive mechanism is subjected to an external impact force, the damper experiences a force reaching the set value, triggering the damping sleeve of the damper to unlock, causing the massage mechanical arm to quickly return to its initial position.

[0005] As a preferred embodiment of this utility model, the damper includes: a damper housing and a damping bushing fixedly connected within the damper housing. The damping bushing includes: an outer damping bushing and an inner damping bushing. The outer damping bushing and the inner damping bushing are interference-fitted. The outer damping bushing is fixedly connected to the damper housing. The inner damping bushing is fitted onto the synchronizing rod and fixedly connected to the synchronizing rod. When the external impact force received by the mechanical massage drive mechanism is greater than the frictional force (damping) between the outer damping bushing and the inner damping bushing, the damping bushing unlocks, allowing the massage robotic arm to quickly return to its initial position.

[0006] The beneficial effects of this utility model are as follows:

[0007] 1. The collapsible structure of this utility model is simple, reliable, and reusable, which greatly reduces maintenance and usage costs;

[0008] 2. The collapsible structure of this utility model can work in conjunction with the massage function, which not only does not affect the normal use of the massage function, but also effectively protects the safety of passengers in the event of an accident. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the initial installation state of the mechanical massage drive mechanism, damper, and synchronizing rod of this utility model.

[0010] Figure 2 This is a schematic diagram showing the mechanical massage drive mechanism, damper, and synchronizing rod of this utility model in massage state.

[0011] Figure 3 This is a schematic diagram of the mechanical massage track frame and seat back frame of this utility model.

[0012] Figure 4 This is a schematic diagram of the internal structure of the damper of this utility model.

[0013] Figure 5 This is a schematic diagram showing the removal of the damping outer bushing inside the damper of this utility model.

[0014] Reference numerals: 1. Seat back frame; 2. Mechanical massage slide rail frame; 3. Mechanical massage drive mechanism; 4. Synchronizing rod; 5. Massage robotic arm; 6. Damper; 601. Damper housing; 602. Damper outer bushing; 603. Damper inner bushing. Detailed Implementation

[0015] See Figure 1-5As shown in the figure, this embodiment provides a novel mechanical massage collapsible structure for a seat back, comprising: a mechanical massage assembly mounted on a seat back frame 1, the mechanical massage assembly including: a mechanical massage track frame 2 mounted on the seat back frame 1, and a mechanical massage drive mechanism 3 mounted on the mechanical massage track frame 2. The mechanical massage drive mechanism 3 is mounted on the mechanical massage track frame 2 via synchronizer rods 4 extending from both sides and drives a massage mechanical arm 5 to swing. A damper 6 is installed between the synchronizer rods 4 and the massage mechanical arm 5. The mechanical massage drive mechanism 3 drives the massage mechanical arm 5 through the damper 6 on the synchronizer rods 4. Arm 5 swings, and damper 6 includes: damper housing 601 and damping bushing fixed inside damper housing 601. The damping bushing includes: damping outer bushing 602 and damping inner bushing 603. The damping outer bushing 602 and damping inner bushing 603 are interference-fitted. The damping outer bushing 602 is fixed to damper housing 601. The damping inner bushing 603 is fitted on the synchronizing rod 4 and fixed to the synchronizing rod 4. When the external impact force on the mechanical massage drive mechanism 3 is greater than the friction force (damping) between the damping outer bushing 602 and damping inner bushing 603, the damping bushing unlocks, allowing the massage mechanical arm 5 to quickly return to the initial position.

[0016] Working principle: Under normal conditions, when the synchronizing rod 4 drives the massage robotic arm 5, it will increase the damping of the damper 6 to a certain extent, but if it does not reach the set value, it will not affect the normal operation of the mechanical massage assembly. When an external impact force suddenly occurs under normal operating conditions, the impact force on the damper 6 is greater than the friction force generated by the bushing interference fit, causing the damper 6 to overcome the friction force and rotate, so that the massage robotic arm 5 quickly returns to the initial position. Figure 1 This prevents injury to occupants; when the mechanical massage assembly returns to its initial position, the damper 6 and the synchronizing rod 4 are rematched, without affecting the reuse of the mechanical massage assembly.

[0017] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A novel mechanical massage collapsible structure for a seat back, comprising: A mechanical massage assembly mounted on a seat back frame includes: a mechanical massage track frame mounted on the seat back frame; and a mechanical massage drive mechanism mounted on the mechanical massage slide frame. The mechanical massage drive mechanism is mounted on the mechanical massage track frame via synchronizer rods extending from both sides and drives the massage mechanical arm to swing. The assembly is characterized by a damper installed between the synchronizer rods and the massage mechanical arm. The mechanical massage drive mechanism drives the massage mechanical arm to swing via the damper on the synchronizer rods. The housing of the damper is fixedly connected to the massage mechanical arm. The damping sleeve of the damper is fitted onto the synchronizer rods. When the mechanical massage drive mechanism moves via the synchronizer rods, it increases the damping of the damper, but does not reach the set damping value, and the mechanical massage drive mechanism operates normally. When the mechanical massage drive mechanism is subjected to an external impact force, the damper experiences a force reaching the set value, triggering the damping sleeve of the damper to unlock, causing the massage mechanical arm to quickly return to its initial position.

2. The novel mechanical massage collapsible structure for a seat back as described in claim 1, characterized in that, The damper includes: a damper housing and a damping bushing fixedly connected inside the damper housing. The damping bushing includes: an outer damping bushing and an inner damping bushing. The outer damping bushing and the inner damping bushing are interference-fitted. The outer damping bushing is fixedly connected to the damper housing. The inner damping bushing is fitted onto a synchronizing rod and fixedly connected to the synchronizing rod. When the external impact force on the mechanical massage drive mechanism is greater than the frictional force between the outer damping bushing and the inner damping bushing, the damping bushing unlocks, allowing the massage robotic arm to quickly return to its initial position.

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