JPS58164426A - Supporting structure for power unit - Google Patents

Abstract

PURPOSE:To reduce the number of parts and to prevent a differential gear housing from vibrating, by a method wherein a first bracket of a supporting device supporting a transmission housing and a car body is made to serve as a function of a gusset. CONSTITUTION:A first bracket 13 of a left side supporting device 10 of a power unit is fixed by sitting astride of the tip part of a differential gear housing 5 and the left end part of a transmission housing 4. By securing like this, the first bracket 13 holds a function of a gusset other than a supporting function of the power unit 1, even if the differential gear housing 5 apt to expand, open and oscillate in a narrow and contracting direction between the housing 5 and the transmission housing 4 by an oscillation of an engine, the oscillation is obstructed by the function of the gusset of the first bracket 13, generation of an oscillation having large amplitude on the power unit 1 is prevented from occurring and oscillation prevention capacity is improved drastically.

Description

[Detailed Description of the Invention] Fuyaaki has a differential support structure for the power unit, especially the transmission and engine housing of the engine body. The present invention relates to a support structure for a power unit in which a housing to be accommodated is integrally carved with a TB at a side 5 protruding from the engine main body/transmission/engine housing.

These 4 Barry units are installed in the front engine foot drive (Fl') fL and the rear engine rear dryer (R-R). 39 For example, in Figure 1?・The power unit 1v of car F is shown, but this power unit 1 includes an engine body 2 placed laterally (in the left-right direction), and a clutch or torque converter housing (
(hereinafter referred to as Tara Nochino housing) 3 and a housing that houses the transmission (hereinafter referred to as
(referred to as Uzing) 4. and a differential*-y directly connected to the transmission.
A housing (hereinafter referred to as a differential housing) S for housing t'I[lj is integrally provided with f6j and ISK#j transmission nose 4 which protrudes rearward from the transmission/S holder 4. 8. ja is the differential housing 6
This is a drive shaft that protrudes in the left-right direction and is connected to a drive (not shown). Tokoro t Said I (Wahenit IK)
In some cases, the clutch (and Etorque converter), transmission, and differential gear are combined together, but this combination of IK champions is generally called a transaxle 7. .

As shown in the figure, the 11ffe power unit 1 is designed to have a length of 124K'' on the front, rear, left and right sides using support devices 8, 9, 10 and 11 of 5Kal numbers as shown in the figure.
The holding devices 8, 9, 10 and 11 each have n power unit 1.
9J4 9th bracket 13. Vehicle body 12mK
It is equipped with a second bracket 14 to be mounted and an elastic body 15 disposed between these brackets 13 and 14, and the left field support device 10 is located between the honeycomb housing 4 and the vehicle body 12, on the rear side. The support 1iits is between the rear end of the clutch housing 3 and the vehicle body 12 and the f special equipment of 6-11
support between the engine body 2 and the vehicle body 12, and
It regulates the roll displacement of the machine and also performs impressive collection. The remaining front support device 8 supports between the clutch housing 3 and the vehicle body 12, and mainly functions as a stock.

By the way, the differential housing 5 of the transaxle 7 protrudes from the transmission towing ring 4 as mentioned above, and when photographing the engine, etc., the protruding part is expanded or narrowed as shown in the tracheal line in Fig. 2. A vibration mode in the 5° direction is generated, and the vibration mode causes the case 7a of the transaxle 7 (hereinafter referred to as the transaxle case, the clutch housing 31i/S housing 4 and the differential housing 5 to be collectively referred to). As a result, the amplitude of the entire movement of the power unit 1 becomes large, which is disadvantageous in terms of sound and vibration performance. Regarding the tip R1s, number 9 (not shown) is a gusset that connects both ends of the tip! It is conceivable to provide the above-mentioned differential housing 8 in order to suppress the above-mentioned motion mode occurring in the differential housing 8. However, providing the gusset increases the number of parts.
ff came and the work at the time of assembly W! sv8, it is necessary to form a mounting part for attaching the gusset V* to the transaxle case 7a, and the childishness of the case 7a becomes sensitive. Also, attach the gusset.

= The space efficiency in the engine room is reduced due to this, and a gap point of 5 is generated.The present invention, in view of such conventional gap point Km, does not differ from the gusset vtrt.
By fixing the drive 1 bracket of the supporting cover that supports the transmission housing and the electric body to the distal end of the differential gear housing and the distal end of the transmission housing opposite to this distal end, the above-mentioned @1 Bracket allows you to clearly understand the function of the gusset, and reduces the number of parts. ) To provide an I-frame for a power unit that prevents SSV of the differential gear housing without changing the workability of the lance axle case or deteriorating space efficiency. be.

Hereinafter, one embodiment of the present invention will be explained with reference to FIG. Incidentally, in explaining this embodiment, the same parts as those in the conventional configuration will be described with the same reference numerals.

Enchi, @3 Figure shows the power unit 10i holding structure 111 according to the present invention, 2 is the engine body, 3 is the clutch housing, 4 is the transmission housing lever, and the three are connected together through bolts not shown. 5 is a differential housing, and this differential housing 5 is connected to the transmission housing 4. By integrally forming the clutch housing 3 with a protruding bottom, the protruding portions of both parts are joined together. 8゜9.10.11 is a support device that supports the vehicle body 12mK on the front, rear, left and right sides of the power unit) 1, and each of the support devices 8, 9, 10.11 is fixed to the required foot portion of the power unit 1 via bolts 1611. The first bracket 13 and the elastic body 15 attached to this IIl bracket 13KWt.
And this elastic body 15 is supported by #L body 121i11@
2 brackets 14.

6.6a is a drive shaft. Here, the present invention relates to the support 8.9. The left support device #tlO, which is arranged between the mission housing 4 and the mounting body 12, is placed in the space portion 8 surrounded by the mission housing 4 and the differential housing 5 protruding from the mission housing 4. The first bracket 11VM of the support device 1O is fixed across the tip of the differential housing 5 and the tip of the transmission housing 4 facing this tip. That is, as shown in FIGS. 4 and 5, the copper 1 bracket 13 is bent upward at the center to form an abbreviated shape in order to avoid interference with the drive shaft 6 protruding leftward from the iK1 differential gear. It is formed (Fig. 4). Both ends f of the wLl bracket 13 are attached with attachments 1MS 2 extending in the front-rear direction.
Q # 20a is formed and this installation [820e 20
Each of a and K has a through hole 21v for the bolt 16. Therefore, the central axis of the nuclide through hole 21 is formed to be substantially in the left-right direction. Further, the upper surface 13aK of the s1 bracket 13 has a diagonal mounting hole 22 for accommodating the elastic body 15 left open.

That is, this elastic body 15 has a concentric shape Kfk! It is covered and fixed to the inner cylinder 15a and the outer cylinder *sblsfl by press fitting or adhesive, etc., and protrudes from the outer cylinder 15tl, inserts the T bolt 23 into the mounting hole 21, and tightens the nut 24i%. It's SQL. In addition, the inner cylinder 1
FIA is attached to the 2nd bracket 14Km via bolt 15c and nut 15dv. On the other hand, the left end of the second housing 4 and the left protruding end of the differential housing 5
Vr is the mounting portion 20.2 of the first bracket 13 described in Tlr.
Threaded holes 215 are formed corresponding to the insertion holes 21 which are shaped at QΔ. Therefore, the center axis of the screw hole 26 is formed in the same 61 as the insertion hole 21 in the left-right direction, and the I! When installing the 1 bracket 13, the 41 bracket 13
The mission housing 4. Press the differential housing 5 from the left side into the screw hole 25. It is only necessary to align the insertion hole 21. For this purpose, the above-mentioned drain hole zsvm
For ll[, it is sufficient to consider the dimension 1t of the vehicle in the front direction of the vehicle body. The mounting portions 2G, 2 of the first bracket 13 are
0a is fixed to the screw hole 25 through the 1@t-.

From the above structure FILK, the left support device 10F)@1 bracket 13 is fixed across the tip of the differential housing 5 and the left end of the Mitsushiran housing 4, and 1)F)''
c! , 111tI The first bracket 13 is a power unit! In addition to the supporting function, it also functions as a gusset. Therefore, due to engine vibration etc., the differential housing 5
Even if the connection with the tension housing 4 attempts to vibrate in the direction of expanding or contracting, the gusset function of the first bracket 13 prevents the vibration and prevents the power unit 1 from generating a large amplitude vibration. prevention and improve tone part performance. Maku, J! Since the gusset function v* is provided on the bracket 13, the number of parts can be reduced, and the space in the engine room is only used for the support layer #10. Almost the same space as before is secured. V! Furthermore, when machining the threaded hole 25 for the elbow in the transaxle 7, it is sufficient to form it for mounting the 4c wire 1 bracket 13 as in the conventional case, and the transaxle 7 does not require 4 mK to form.

As for the mounting position of the support 110, the mounting portion 20a of the @1 bracket h13 is fixed to the mission housing 4, and the 1@2 bracket 14 of the support layer #10 is fixed to the mission housing. 4 nearby car body i
Since z<6, the left side 111 of the Mitsushiran housing 4, that is, the power unit) 1, is
' is definitely done.

By the way, in the above example, @1 bracket 1
39) A model is shown that is formed separately from the transaxle case frame a, and these two parts are fixed with bolts 1g&c, but this is not limited to the transaxle case frame a described below.
When forming the bracket 13', the bracket 13' may be integrally molded from the transaxle case 7a.

Having explained the above, my friend, the present invention provides a power unit which is attached to an engine body, has a trans-transmission housing, and a differential gear housing protrudes from the transmission housing. A first bracket to be attached to the power unit 14IIK, a second bracket to be attached to the vehicle body 48, and a support device including an elastic body disposed in connection with both brackets, are used to slightly lower the transmission housing to the vehicle body. In the power unit support structure in which the power unit is supported by 1 lll, the wire 1 bracket is fixed across a tip gIl11 portion of the differential gear housing and a tip portion of the transmission housing opposite to this tip portion. Since it is 5ffL7t, it functions as a gusset on the #Taikou 1 bracket vw
This improves sound performance by preventing vibrations in the expansion and contraction directions of the differential gear housing that protrudes from the transmission housing. Further, by providing the #Ll bracket with a gusset function, the number of parts does not increase, and therefore, the space in the engine room does not become bulky.

fK, same 411 as before for transaxle case
Since no other parts are installed other than the K-front-piml bracket, the mechanical strength of the transaxle case when forming the installation image will not be affected.

[Brief explanation of the drawing]

Figure 111 is a plan view showing the support structure of a conventional power unit, Figure 2 is a diagram showing the vibration mode of the transaxle in a conventional power unit, and Figure 98 is an example of the support structure of the power unit of the present invention. Fig. 4 shows the left side layer showing the rise of the elastic material attached to the first bracket used in the power en-tt holding structure of the present invention, and Fig. S shows the rise in Fig. 4. It is a top view of the @1 bracket shown. l...power unit, 2...engine body, 3.
... Talatch housing, 4... Transmission housing, S... Differential gear housing,
7... Transaxle, 10... Support device, 13
... 1st bracket, 14th... 2nd bracket. 15...Elastic body. Figure 1 Figure 4

Claims (1)

[Claims] 11: Attached to the engine body, the transmission housing protrudes from the mAe2h transmission housing. The hawk that is being played), d
LKmKtft The two brackets seen and the elastic body disposed between these two brackets? Support with - IfK
Therefore, in the power unit node σ1f4 structure that is supported at least on the transmi- nojo no 1 ujing vIIL body i & 111, the l 17
'Rake' Nod Y A 11th generation diffuser V The tip of the mechanical gear housing, and the front 4 parts of the transmission nozzle opposite to this tip [1111 is fixed. Support structure of the unit.