CN104742855A - Safety belt connection device - Google Patents
Safety belt connection device Download PDFInfo
- Publication number
- CN104742855A CN104742855A CN201310745817.7A CN201310745817A CN104742855A CN 104742855 A CN104742855 A CN 104742855A CN 201310745817 A CN201310745817 A CN 201310745817A CN 104742855 A CN104742855 A CN 104742855A
- Authority
- CN
- China
- Prior art keywords
- locking seat
- expansion pin
- emergency
- mandrel
- limit rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/30—Coupling devices other than buckles, including length-adjusting fittings or anti-slip devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention relates to a safety belt connection device, comprising a framework, a core shaft, a force limit rod and an emergency locking device, wherein a gear hole is formed in the framework; the emergency locking device comprises a locking seat and a sensor installed on the locking seat and used for detecting the emergency condition of a vehicle; a pawl which is used for being engaged with the gear hole to lock a safety belt in emergency is arranged on the locking seat; the core shaft is provided with a hollow portion in which the force limit rod is arranged; one end of the force limit rod is fixed to the circumference of the core shaft, and the other end of the force limit rod is fixed to the circumference of the locking seat of the emergency locking device; more than one expansion pin is arranged on the end face, opposite to the locking seat, of the core shaft; more than one countersunk hole connected with the expansion pin in a matching manner is formed in the corresponding position of the locking seat; the expansion pin on the core shaft penetrates through the countersunk hole in the corresponding position on the locking seat, and is blunted at the expanded part of the countersunk hole through a press machine. By applying the safety belt connection device, the problem that the energy absorption effect of the force limit rod is influenced by the irregular fractured section of the expansion pin is solved.
Description
Technical field
The present invention relates to a kind of parts for vehicle safety belt system, particularly a kind of safety strap connecting device.
Background technology
All the time, the safety strap possessing limit for tonnage restriction of called optical imaging, its object is to, and allows passenger load to limit ground anterior displacement under unforeseen circumstances.Therefore, this Webbing retractor comprises the mandrel separated and the force-limit rod be arranged between mandrel and locking module.So, constraint passenger safety strap be fixed on mandrel, the locking module is connected with mandrel then can relative to Webbing retractor fix and self-propelled vehicle shell and lock.At seatbelt lock and under exceeding the application force situation limited by force-limit rod, the side that the part that mandrel and safety strap are fixed can be extracted out at safety strap while trigger load restraint device rotates up.Thus, the load acted on passenger is limited in the level limited by load limiting device.
In addition, in nearest seat belt apparatus, possess pre-tightening device, its object is to, when the vehicle that collision etc. causes is urgent, by eliminating the lax of ribbon, before passenger is forwards mobile, definite fixing, improves the protective value to driver and crew.The action of pre-tightening device uses gunpowder usually, by the application force of gas produced during gunpowder explosion, is regained by ribbon fast speed.
In addition, this Webbing retractor is also provided with ability absorption plant, when vehicle collision causes larger impulsive force, move with the inertia of driver and crew and the load acted on ribbon exceedes the value preset time, allow the ribbon of release specified amount, the absorption of the ability of carrying out, alleviates the pressure being applied to driver and crew's chest.
But, the lockable mechanism of mandrel and locking module, needing to couple together under normal circumstances can synchronous rotary, this is because, both are not coupled together and make its synchronous rotary, when usually carrying out the batching and discharge of ribbon, difficulty can be become, become the reason producing strange sound and rock.In this case, generally expansion pin is used.
In addition, when using expansion pin connecting mandrel and locking module, the accident once meet accident, locking module can with mandrel connecting portion generation Fault displacement, expansion pin form is in the past that upper and lower diameter is the same mostly, rupture cross section will be made irregular when generation Fault displacement like this, even can have influence on the energy absorbing of force-limit rod.
Summary of the invention
The object of this invention is to provide a kind of safety strap connecting device can avoiding affecting because expansion pin rupture cross section is irregular force-limit rod energy absorbing.
The technical scheme realizing the object of the invention is: the present invention includes framework, mandrel, force-limit rod and lock in emergency device; The diaphragm plate that described framework has the first parallel plate, the second parallel plate and is connected between described first parallel plate and the second parallel plate; Described first parallel plate is provided with gear hole, and the second parallel plate is provided with circular hole; The sensor that described lock in emergency device comprises locking seat and is installed on it for detecting vehicle emergency, locking seat is provided with for engaging with the ratchet of lock in emergency safety strap with gear hole; Described mandrel has hollow bulb, and force-limit rod is arranged in hollow bulb; One end of described force-limit rod and mandrel circumference fixing, the other end is fixed with the locking seat circumference in lock in emergency device; The end face that described mandrel is relative with locking seat is provided with the expansion pin of more than, and on locking seat, correspondence position is also provided with more than one counter sink be connected with expansion pin; Expansion pin on described mandrel through correspondence position on locking seat counter sink and by the blunt office, expansion section of putting down at counter sink of compression machine.
Above-mentioned mandrel and the expansion pin arranged on it are integrated diecasting.
Above-mentioned mandrel and the expansion pin arranged on it are aluminium matter.
The end face that above-mentioned mandrel is relative with locking seat is provided with two expansion pins, and on locking seat, correspondence position is also provided with two counter sinks be connected with expansion pin.
The present invention has positive effect: (1) present invention, avoiding the problem affecting force-limit rod energy absorbing efficiency because expansion pin rupture cross section is irregular; (2) the present invention designs ingenious, and structure is simple, and manufacture simple and fast, result of use is good.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is exploded perspective view of the present invention;
Fig. 2 is cutaway view of the present invention;
Fig. 3 is expansion pin and the fastening front schematic diagram of locking seat in the present invention;
Fig. 4 be in the present invention expansion pin and locking seat fastening after schematic diagram.
Detailed description of the invention
See Fig. 1 to Fig. 4, the present invention includes framework 1, mandrel 2, force-limit rod 3 and lock in emergency device 4; The diaphragm plate that described framework 1 has the first parallel plate, the second parallel plate and is connected between described first parallel plate and the second parallel plate; Described first parallel plate is provided with gear hole, and the second parallel plate is provided with circular hole; The sensor 42 that described lock in emergency device 4 comprises locking seat 41 and is installed on it for detecting vehicle emergency, locking seat 41 is provided with the ratchet 43 for engaging with gear hole with lock in emergency safety strap; Described mandrel 2 has hollow bulb, and force-limit rod 3 is arranged in hollow bulb; One end of described force-limit rod 3 and mandrel 2 circumference fixing, the other end is fixed with locking seat 41 circumference in lock in emergency device 4; The end face that described mandrel 2 is relative with locking seat 41 is provided with the expansion pin 21 of more than two, and on locking seat 41, correspondence position is also provided with two counter sinks 44 be connected with expansion pin 21; Expansion pin on described mandrel 2 21 through correspondence position on locking seat 41 counter sink 44 and by the blunt office, expansion section of putting down at counter sink 44 of compression machine, thus mandrel 2 and locking seat 41 are fixed together, and in case of emergency, the fracture of expansion pin 21 can occur in counter sink 44 expansion place, and area of fracture is very smooth.Generally by integrated die-casting technique, mandrel 2 and expansion pin 21 are made into one, and adopt aluminium matter.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a safety strap connecting device, comprises framework (1), mandrel (2), force-limit rod (3) and lock in emergency device (4); The diaphragm plate that described framework (1) has the first parallel plate, the second parallel plate and is connected between described first parallel plate and the second parallel plate; Described first parallel plate is provided with gear hole, and the second parallel plate is provided with circular hole; Described lock in emergency device (4) comprises locking seat (41) and is installed on it for the sensor (42) detecting vehicle emergency, and locking seat (41) is provided with for engaging with the ratchet of lock in emergency safety strap (43) with gear hole; Described mandrel (2) has hollow bulb, and force-limit rod (3) is arranged in hollow bulb; One end of described force-limit rod (3) and mandrel (2) circumference fixing, the other end is fixed with locking seat (41) circumference in lock in emergency device (4); It is characterized in that: the end face that described mandrel (2) is relative with locking seat (41) is provided with the expansion pin (21) of more than, the upper correspondence position of locking seat (41) is also provided with more than one counter sink (44) be connected with expansion pin (21); Expansion pin (21) on described mandrel (2) goes up the counter sink (44) of correspondence position through locking seat (41) and puts down in the office, expansion section of counter sink (44) by compression machine is blunt.
2. safety strap connecting device according to claim 1, is characterized in that: described mandrel (2) and the expansion pin (21) arranged on it are integrated diecasting.
3. safety strap connecting device according to claim 2, is characterized in that: described mandrel (2) and the expansion pin (21) arranged on it are aluminium matter.
4. safety strap connecting device according to claim 1, it is characterized in that: the end face that described mandrel (2) is relative with locking seat (41) is provided with two expansion pins (21), the upper correspondence position of locking seat (41) is also provided with two counter sinks (44) be connected with expansion pin (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745817.7A CN104742855A (en) | 2013-12-30 | 2013-12-30 | Safety belt connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310745817.7A CN104742855A (en) | 2013-12-30 | 2013-12-30 | Safety belt connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104742855A true CN104742855A (en) | 2015-07-01 |
Family
ID=53583305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310745817.7A Pending CN104742855A (en) | 2013-12-30 | 2013-12-30 | Safety belt connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104742855A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112437732A (en) * | 2018-07-26 | 2021-03-02 | 奥托立夫开发公司 | Belt retractor with force limiting and separating device |
| CN115139970A (en) * | 2021-03-30 | 2022-10-04 | 比亚迪股份有限公司 | Seat belt winding shaft mechanism, seat belt winding device, and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0747923A (en) * | 1993-05-05 | 1995-02-21 | Trw Repa Gmbh | Seat belt retractor |
| WO1996032303A1 (en) * | 1995-04-14 | 1996-10-17 | Autoliv Development Ab | Belt roller with damped force limiter |
| CN101306676A (en) * | 2007-05-18 | 2008-11-19 | 德尔斐韩国株式会社 | Seat belt retractor |
| CN102341279A (en) * | 2009-03-18 | 2012-02-01 | 奥托立夫开发公司 | Seatbelt device |
| CN203157930U (en) * | 2012-11-20 | 2013-08-28 | 比亚迪股份有限公司 | Safety belt retractor |
| CN203727332U (en) * | 2013-12-30 | 2014-07-23 | 常州博万达汽车安全设备有限公司 | Safety belt connection apparatus |
-
2013
- 2013-12-30 CN CN201310745817.7A patent/CN104742855A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0747923A (en) * | 1993-05-05 | 1995-02-21 | Trw Repa Gmbh | Seat belt retractor |
| WO1996032303A1 (en) * | 1995-04-14 | 1996-10-17 | Autoliv Development Ab | Belt roller with damped force limiter |
| CN101306676A (en) * | 2007-05-18 | 2008-11-19 | 德尔斐韩国株式会社 | Seat belt retractor |
| CN102341279A (en) * | 2009-03-18 | 2012-02-01 | 奥托立夫开发公司 | Seatbelt device |
| CN203157930U (en) * | 2012-11-20 | 2013-08-28 | 比亚迪股份有限公司 | Safety belt retractor |
| CN203727332U (en) * | 2013-12-30 | 2014-07-23 | 常州博万达汽车安全设备有限公司 | Safety belt connection apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112437732A (en) * | 2018-07-26 | 2021-03-02 | 奥托立夫开发公司 | Belt retractor with force limiting and separating device |
| CN112437732B (en) * | 2018-07-26 | 2023-01-31 | 奥托立夫开发公司 | Belt retractor with force limiting and separating device |
| CN115139970A (en) * | 2021-03-30 | 2022-10-04 | 比亚迪股份有限公司 | Seat belt winding shaft mechanism, seat belt winding device, and vehicle |
| CN115139970B (en) * | 2021-03-30 | 2023-10-13 | 比亚迪股份有限公司 | Seat belt winding shaft mechanism, seat belt winding device, and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |
|
| WD01 | Invention patent application deemed withdrawn after publication |