JPH04138153U - Transmission surrounding structure - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to provide a peripheral structure for a transmission that can reliably protect the harness and connector from the hot air of the catalyst and facilitate the work of installing the connector. [Structure] Since the front end 7a of the catalyst 7 is supported by the support arm 19 provided on the bracket 15, the catalyst 7
The bracket itself will be located at the rear of the bracket 15. Since the connector 10 is attached to the front of the bracket, the connector 10 and the harnesses 12, 13,
The bracket 15 is present as a heat shielding wall between the catalyst 7 and the catalyst 7, and can protect them from the hot air of the catalyst 7. Furthermore, since the connector 10 is attached to the bracket 15 in a horizontal direction, there is no need to force the connector 10 into an upward posture as in the conventional case, and the workability is also improved.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea was applied to the surrounding structure of the transmission, especially the harness connector and catalyst support. This relates to the peripheral structure of the transmission.

0002

[Conventional technology]

For example, the peripheral structure of a conventional transmission is shown in FIGS. 4 to 6. (Maintenance Instructions JHG5 issued by Nissan Motor Co., Ltd. in November 1990) 0 Type Car", page B-274, page C-56, etc.).

0003 1 is the engine, and the transmission 2 is located at the rear. A propeller shaft 4 is connected from the rear end 2a of the transmission 2 via a joint 3. It extends towards the rear.

0004 This transmission 2 is fixed to a predetermined position on the vehicle body via a mount member 5. has been done. A horizontal support arm 6 is attached to the rear end of the mount member 5. The end is attached via a rubber member R, and the end of the support arm 6 is attached to the middle of the exhaust pipe. A front end portion 7a of the catalyst 7 disposed in is supported.

[0005] Further, the rear end portion 2a of the transmission 2 is provided with a shape corresponding to the shape of the upper surface on the upper surface thereof. An upper bracket 8 having a curved shape is attached to the upper bracket 8. Attach the heat shield bracket 9 bent into a channel shape from below using bolt means B. It is installed. A hardware including six connectors 10 is provided inside this heat shield bracket 9. -ness bracket 11 is provided, and via this connector 10, A pair of harnesses 12 and 13 are connected along the line. In addition, 12a and 13a in the figure are the front Wiring bundled within the harnesses 12 and 13 are shown, respectively.

[0006]

[Problem that the idea aims to solve] However, in such conventional technology, it is difficult to touch the left side of the connector 10. Because the catalyst 7 is located there, a heat shield bracket 9 is set to connect the connector 10 to the heat of the catalyst 7. Needs protection from the air. In order to omit this heat shield bracket 9, the catalyst 7 You can lower it backwards and remove it from the side position of the connector 10, but if you do not use the mount metal like now, In the method in which the catalyst 7 is supported by the support arm 6 attached to the chamber 5, the position of the catalyst 7 is The length of the support arm 6 becomes too large due to the rearward movement, and the support stiffness of the catalyst 7 becomes too large. This will lead to a decline in sexual relations and make it impossible to provide reliable support. Also, since the support arm 6 is longer, However, it is also disadvantageous in terms of weight. Therefore, we decided to change the mounting position of the support arm 6 from the current mounting position. the rear end portion 2a of the transmission 2 located rearward than the member 5; It is also possible to support the catalyst 7 with a short support arm, but this Because the connector 10, heat shield bracket 9, etc. are already provided on the rear end portion 2a. Therefore, it is impossible to hire.

[0007] In addition, in the conventional case, the heat shield bracket 9 protects the connector 10 from the hot air of the catalyst 7. Although the harnesses 12 and 13 can be protected from the heat of the catalyst 7, No measures have been taken to protect against air pollution. That is, the harnesses 12 and 13 are Since the harnesses 12 and 13 extend in the front-rear direction, a dedicated shield It is difficult to provide heat brackets to protect the harnesses 12, 13 themselves. It is also disadvantageous in terms of cost to make it heat resistant.

[0008] Furthermore, when considering the installation work of the connector 10 (harness bracket 11) itself, If so, lift the harness bracket 11 together with the heat shield bracket 9 and remove the upper bracket. 8 from the bottom, and both were attached using bolt means B. Therefore, the installation work using bolt means B is an upward work, which is disadvantageous in terms of workability. Met. In other words, workers must get under the lifted car and force it upwards. The work is difficult because it has to be done in a forced position. Ta.

[0009] This idea was made by focusing on such conventional technology, and it The connector can be reliably protected from the hot air of the catalyst, and the connector installation work is easy. The purpose of this project is to provide peripheral structures for transmissions.

0010

[Means to solve the problem]

The peripheral structure of the transmission according to this invention is designed to achieve the above objectives. Attach a vertical wall bracket along the vehicle width direction to the bottom of the transmission. At the same time, there is a connector on the front of the bracket that connects a pair of harnesses along the vehicle width direction. The front end of the catalyst is supported by a support arm installed approximately horizontally on the bracket. It was designed to be supported.

[0011]

[Effect]

The front end of the catalyst is supported by a support arm installed approximately horizontally on the bracket. Therefore, the catalyst itself will be located behind the bracket. And connections The connector is attached to the front of this bracket, so there is no need to place a bracket between the connector and the catalyst. The bracket is inserted as a heat shield wall, and the connector is connected to this bracket. The racket protects the catalyst from the heat. Moreover, this connector A pair of harnesses are installed in a direction that connects them along the width direction of the vehicle. The pair of harnesses connected with this connector are also located only on the front side of the bracket. Therefore, not only the connector but also the harness can be protected from hot air. Become so.

0012 In addition, since the connector is attached to the front of the vertical wall bracket, its installation is difficult. The installation work is done in a horizontal direction, and the installation work is done in an awkward upward position like in the past. There is no need to move, and it is extremely easy to work with.

[0013]

【Example】

A preferred embodiment of this invention will be described below with reference to FIGS. 1 to 3. In addition, same as before The same reference numerals are given to the parts that pass through, and redundant explanations will be omitted. The rear end portion 2a of the transmission 2 according to this embodiment has an upper side on its lower surface. A bracket 14 is fixed by welding. And 15 is a bracket, It has a vertical wall shape along the vehicle width direction W, and a horizontal flange portion 15a at the upper end thereof is , attached to the notches 14a at both ends of the upper bracket 14 by bolt means B. It is written.

[0014] A connector 10 is provided on the front side of this bracket 15 along the vehicle width direction W. A fitted harness bracket 11 is attached. In other words, this harness bracket A mounting piece 16 is formed on a part of the bracket 11, and it can be inserted from the rear side of the bracket 15. It is attached by screwing the bolt means B passed through the attachment piece 16. child The installation work using bolt means B is horizontal installation work, so the worker can be installed in an easy position without being forced to face upwards like in the past. Able to perform work.

[0015] And each wiring 12a, 13a bundled in a pair of harnesses 12, 13 The connectors 10 are connected along the vehicle width direction W. In other words, One harness 12 that comes from the front side of the engine connects from the top of the transmission 2 to the bottom. It goes around to the side and is connected to the connector 10 from the right side of the harness bracket 11. Then, the other harness 13 rises upward from the left side of the harness bracket 11. and reaches the side wall of the tunnel portion 18 formed in the floor panel 17. Ru.

[0016] Further, on the rear surface of the left end of the bracket 15, a support arc extending horizontally toward the left side is provided. The base end of the rubber member 19 is attached by bolt means B via a rubber member R. And this The front end 7a of the catalyst 7 is attached to the tip of the support arm 19 by bolt means B. . Since this support arm 19 is attached to the left end of the bracket 15, the length is It is short and has high rigidity. Therefore, the supporting rigidity of the catalyst 7 is increased, and the vibration of the catalyst 7 is prevented. It is possible to reliably prevent this from happening. Note that a heat shield plate 20 is provided above the catalyst 7. This prevents the hot air from the catalyst 7 from affecting the floor panel 17.

[0017] In this embodiment, as described above, a rubber member R is attached to the rear surface of the bracket 15. The base end of the support arm 19 is attached, and the front end 7 of the catalyst 7 is attached to the tip of the support arm 19. Since the catalyst a is supported, the catalyst 7 is positioned further back than the bracket 15. I will do it. Conversely, the connector 10 is attached to the front of this bracket 15. For this reason, a bracket 15 is provided between the connector 10 and the catalyst 7 as a heat shield wall. Therefore, the hot air from the catalyst 7 is blocked by this bracket 15 and reaches the connector 10. No.

[0018] Furthermore, the connector 10 connects the pair of harnesses 12 and 13 along the vehicle width direction W. These harnesses 12 and 13 are also located behind the bracket 15. Since the harnesses 12 and 13 are not installed, the hot air from the catalyst 7 is also will be protected from.

[0019] In addition, since the connector 10 is attached to the front of the bracket 15, if Even if the car interferes with a protrusion such as a curb on the road surface while reversing, The connector 10 is protected by this bracket 15 and is protected from damage.

[0020] In the above explanation, a separate support arm 19 is attached to the bracket 15. Although the example is shown, the support arm 19 may be formed integrally with the bracket 15. good.

[0021]

[Effect of the idea]

The peripheral structure of the transmission according to this invention is as explained above. The catalyst is now located behind the bracket and does not come into contact with the connector. Since the bracket exists as a heat shield between the catalyst and the catalyst, the hot air from the catalyst is It is blocked by this bracket and cannot reach the connector.

[0022] In addition, it is a type that connects the connector harness along the vehicle width direction, and the harness Since the connector is also located on the front side of the bracket, the harness is also located on the front side of the catalyst. protected from heat.

[0023] Furthermore, since the connector is attached to the front of the vertical wall bracket, its installation is easy. The installation work is done in a horizontal direction, and the installation work is done in an awkward upward position like in the past. There is no need to move, and it is extremely easy to work with.

[0024]

[Brief explanation of drawings]

FIG. 1 is a side view showing a peripheral structure of a transmission according to an embodiment of the invention.

FIG. 2 is a plan view seen from the DA direction in FIG. 1;

3 is a side view seen from the DB direction in FIG. 1. FIG.

FIG. 4 is a side view showing the peripheral structure of a conventional transmission.

5 is a plan view seen from the DC direction in FIG. 4. FIG.

6 is a side view seen from the DE direction in FIG. 4. FIG.

[Explanation of symbols]

2 Transmission 7 Catalyst 7a Front end of catalyst 10 Connector 12, 13 Harness 15 Bracket 19 Support arm W Vehicle width direction

Claims (1)

[Scope of utility model registration request] Claim 1: A bracket in the form of a vertical wall extending along the vehicle width direction is attached to the lower part of the transmission, and a connector for connecting a pair of harnesses along the vehicle width direction is provided on the front surface of the bracket, and the connector is installed approximately horizontally on the bracket. A peripheral structure for a transmission, characterized in that a front end portion of a catalyst is supported by a support arm provided therein.