GB1574037A - Connection device for connecting an engine to a frame - Google Patents
Connection device for connecting an engine to a frame Download PDFInfo
- Publication number
- GB1574037A GB1574037A GB1802377A GB1802377A GB1574037A GB 1574037 A GB1574037 A GB 1574037A GB 1802377 A GB1802377 A GB 1802377A GB 1802377 A GB1802377 A GB 1802377A GB 1574037 A GB1574037 A GB 1574037A
- Authority
- GB
- United Kingdom
- Prior art keywords
- engine
- frame
- connection device
- waves
- connection element
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M7/00—Motorcycles characterised by position of motor or engine
- B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels
- B62M7/04—Motorcycles characterised by position of motor or engine with engine between front and rear wheels below the frame
Description
(54) A CONNECTION DEVICE FOR CONNECTING AN
ENGINE TO A FRAME
(71) We, JAWA NARODNI PODNIK, a
Czechoslovakian Body Corporate, of Tynec nad Sazavou, Czechoslovakia, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- The invention relates to a connection device for connecting an engine to a frame, especially but not exclusively for motor bicycles.
There are known resilient and nonresilient mountings of an engine in a frame of a motor-bicycle. Rigid non-resilient mountings are known which comprise bolted connections of fixing plates or fixing frame elements to castings of an engine gear-box unit or of another stable part of an engine.
There are also known connections where a connecting element in the form of a plate is bolted to the engine and to the frame as well.
Known types of resilient mountings or engines of motor-bicycles include connections of the engine to the frame without a metal contact which permit a large range of movement to the engine with respect to the frame. There is also known a mounting, where the engine is rigidly fixed to a back fork, the back fork swings vertically and this unit with a back wheel is connected to the frame by means of rubber elements.
Many known resilient mounts utilise the properties of soft elastic materials, especially of rubber.
There is also known a resilient mounting of an engine comprising a system of metal flat plates made of steel or plastics.
A common disadvantage of known rigid mountings of an engine in a frame is a very inconvenient direct transmission of vibrations from the engine to the frame and thus to handlebars, foot rests and other parts of the structure of a motor-bicycle.
Resilient mountings for engines of motorbicycles, known till now, are also unsatisfactory in that they permit the engine in practice, to make large swings which are unacceptable because of a detrimental effect on the function and service life of the engine. In the case of a system of metal flat plates, there is a great disadvantage in a complicated production and design and in a great number of small parts having a limited service life.
Some of the mentioned disadvantages
may be reduced or overcome by a connection device according to the invention which provides a connection device for connecting an engine to a frame, for example, a motorbicycle frame, said device comprising a damping connection element which is put, in use, between the frame and the engine and is made of two metal strips shaped in waves, said strips being symmetrically arranged with respect to a central plane and mutually fixed together as one unit in this plane, in which an end of each metal strip is formed as a mounting for the engine, and in which gaps between the waves of the connection element are filled by a soft damping material.
Vibrations are damped by this device because the mechanical power of vibration is reflected, in spots of multiple bends and branching of the connection element, back to its source, thus causing interference so that the vibration passing to the frame is diminished very much.
A preferred embodiment of the invention will now be described, by way of example, with reference to the accompanying drawing which is a cross section sketch of a connection of an engine to a frame.
A frame member 1 which is a part of the frame of a motorcycle (not shown) is provided with rigid mountings 2 to which a damping connection element 4 is fixed by means of connection bolts 3. A main part of the damping connection element 4 consists of two metal strips 5 shaped in waves which are symmetrically arranged with respect to a vertical central pane 6 which is a a plane of symmetry of an engine 7. The flat metal strips S are mutually welded together in the symmetry plane 6 of the engine 7 to form a single unit. Ends 8 of the flat metal strips S are formed as mountings to which the engine 7 is fixed by means of a bolt 9.
Gaps between waves of the flat metal strip S are filled with soft damping material 10.
In use of the motorcycle, the whole engine vibrates because of unbalanced forces of a crank mechanism and other unbalanced mechanisms, but the transmission of vibrations to the frame is reduced very effectively by means of the damping connection element 4. The damping effect is increased by means of the soft damping material 10, which fills the gaps between the waves.
A connection device of an engine to a frame as described above ensures a satisfactory function in any working condition with respect to the rigidity of fixing the engine in the frame while providing effective damping of vibration transmission from the engine to the frame. Furthermore the service life of the connection element is nearly unlimited, it technologically simple and its production is cheap.
described with reference to one preferred embodiment thereof, it is to be expressly understood that it is in no way limited to the disclosure of such a preferred embodiment, but it is capable of numerous modifications within the scope of the appended
Claims (3)
1. A connection device for connecting an engine to a frame, for example, a motorbicycle frame, said device comprising a damping connection element which is put, in use, between the frame and the engine and is made of two metal strips shaped in waves, said strips being symmetrically arranged with respect to a central plane and mutually fixed together as one unit in this plane, in which an end of each metal strip is formed as a mounting for the engine, and in which gaps between the waves of the connection element are filled by a soft damping material.
2. A connection device for connecting an engine to a frame substantialy as hereinbefore described with reference to and as shown in the accompanying drawings.
3. A motor-bicycle including a frame and an engine in which the engine is connected to the frame by a connection device as claimed in any one of the preceding claims.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS431576A CS185454B1 (en) | 1976-06-30 | 1976-06-30 | Mouting the motor on the frame,firstly for two-wheel vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1574037A true GB1574037A (en) | 1980-09-03 |
Family
ID=5385613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1802377A Expired GB1574037A (en) | 1976-06-30 | 1977-04-29 | Connection device for connecting an engine to a frame |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS534924A (en) |
| AT (1) | AT359846B (en) |
| CS (1) | CS185454B1 (en) |
| DD (1) | DD130227A1 (en) |
| DE (1) | DE2718050A1 (en) |
| EG (1) | EG12931A (en) |
| FR (1) | FR2356551A1 (en) |
| GB (1) | GB1574037A (en) |
| IN (1) | IN147455B (en) |
| IT (1) | IT1080871B (en) |
| YU (1) | YU157577A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190176604A1 (en) * | 2017-12-12 | 2019-06-13 | C.R.F. Società Consortile Per Azioni | Elastic device of a motor-vehicle engine suspension |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8500605D0 (en) * | 1985-01-10 | 1985-02-13 | Secretary Trade Ind Brit | Damped spring |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1077540B (en) * | 1958-02-01 | 1960-03-10 | Maschf Augsburg Nuernberg Ag | Elastic stop between two mutually movable components, especially vehicle parts |
| FR1534082A (en) * | 1967-06-16 | 1968-07-26 | Peugeot Cycles | Moped or similar machine with variable speed drive |
| FR1539178A (en) * | 1967-08-01 | 1968-09-13 | Motobecane Ateliers | Improvements to moped frames |
-
1976
- 1976-06-30 CS CS431576A patent/CS185454B1/en unknown
-
1977
- 1977-04-14 AT AT259377A patent/AT359846B/en not_active IP Right Cessation
- 1977-04-20 IN IN599/CAL/77A patent/IN147455B/en unknown
- 1977-04-22 DE DE19772718050 patent/DE2718050A1/en not_active Withdrawn
- 1977-04-29 GB GB1802377A patent/GB1574037A/en not_active Expired
- 1977-05-09 EG EG27377A patent/EG12931A/en active
- 1977-05-20 DD DD19904877A patent/DD130227A1/en unknown
- 1977-05-24 IT IT2396977A patent/IT1080871B/en active
- 1977-06-01 FR FR7716719A patent/FR2356551A1/en active Granted
- 1977-06-21 JP JP7292477A patent/JPS534924A/en active Granted
- 1977-06-27 YU YU157577A patent/YU157577A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190176604A1 (en) * | 2017-12-12 | 2019-06-13 | C.R.F. Società Consortile Per Azioni | Elastic device of a motor-vehicle engine suspension |
| CN110027398A (en) * | 2017-12-12 | 2019-07-19 | C.R.F.阿西安尼顾问公司 | The elastic device of motor vehicle engine suspension |
| US10850598B2 (en) * | 2017-12-12 | 2020-12-01 | C.R.F. SOCIETá CONSORTILE PER AZIONI | Elastic device of a motor-vehicle engine suspension |
Also Published As
| Publication number | Publication date |
|---|---|
| AT359846B (en) | 1980-12-10 |
| FR2356551B1 (en) | 1982-09-24 |
| DD130227A1 (en) | 1978-03-15 |
| IT1080871B (en) | 1985-05-16 |
| EG12931A (en) | 1980-03-31 |
| DE2718050A1 (en) | 1978-01-12 |
| FR2356551A1 (en) | 1978-01-27 |
| ATA259377A (en) | 1980-04-15 |
| JPS534924A (en) | 1978-01-18 |
| CS185454B1 (en) | 1978-09-15 |
| YU157577A (en) | 1982-05-31 |
| IN147455B (en) | 1980-03-08 |
| JPS5648349B2 (en) | 1981-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |