JPH0510771U - Air cleaner with air rectifier - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The air rectifying part is placed on the air cleaner case side to reduce the number of processing steps and to easily and reliably assemble the rectifying member. [Structure] A ventilation cylindrical hole 2 of a locking plate 1 having a ventilation cylindrical hole 2 in the center thereof and a plurality of locking claws 3 provided upright on the outer peripheral edge of its inner periphery.
In order to connect the air cleaner case 6 and the air flow meter 7 to the inner wall of the air cleaner case 6 on the outlet side of the air circulation path, the rectifying member 4 is held and hooked and fixed by the locking claw 3. Secure them together with the mounting screws 8 of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to an air flow meter rectifying member mounting structure for an engine. Is.

[0002]

[Prior art]

  The air flow path from the air cleaner to the air flow meter is An air rectifier is provided to rectify the flow. Conventional air rectifier As shown in FIG. 4, a slit-shaped or honeycomb-shaped rectifying member 11 is used for air flow. The rectifying member 1 is inserted into the upstream end of the hot-wire type sensor unit 13 of the meter 12. A groove for fixing the rectifying member 11 to the inner surface of the air flow meter 12 around Is formed, and the corrugated C-shaped stop ring 14 is assembled in the groove to attach the rectifying member 11. It is fixed and the air flow meter 12 and the air cleaner case 15 are connected. . Reference numeral 16 indicates an air cleaner element.

[0003]

[Problems to be solved by the device]

  As described above, the conventional air rectifying unit has a rectifying member on the inner surface of the air flow meter 12. It is necessary to form a groove for inserting the fitting recessed portion 11 and the retaining ring 14, and Since the body of the flow meter 12 is made of aluminum die-cast to be thin Since the depth of the groove into which the ring 14 is inserted is limited, the rectifying member 11 or the stopper ring is It is easy to remove the ring 14, and it is assembled in the state that it was removed during the assembly process of the retaining ring 14. In many cases, the rectifying member 11 could not be kept in the proper position because of the possibility of being damaged.   The present invention eliminates the conventional processing on the air flow meter side and replaces the air rectifier with an air cleaner. It is placed on the inner case side to minimize the number of processing steps, and the rectifying member can be easily and securely assembled. The goal is to be able to do it.

[0004]

[Means for Solving the Problems]

  The first invention of the present invention is provided with a ventilation cylindrical hole in the center, and a plurality of ventilation holes are provided on the inner and outer edges of the ventilation cylindrical hole. Holding the rectifying member in the ventilation cylindrical hole of the locking plate on which the locking claw of The inner wall of the air cleaner case on the outlet side of the air flow path. In addition, it is equipped with an air rectifier characterized by being fixed with an air flow meter mounting screw. The second invention is the air cleaner of the air circulation path of the air cleaner case. A rectifying member fitting recess is provided on the outer wall on the outlet side, and the rectifying member is attached to the air cleaner case and the air cleaner case. Equipped with an air rectifying unit characterized by being pressed and held by connection with a flow meter It is an air cleaner.

[0005]

[Action]

  In the first invention of the present invention, the inner wall of the outlet side of the air circulation path of the air cleaner case is The locking plate to be fixed is used together with a plurality of locking claws that are erected on the inner and outer edges of the ventilation cylindrical hole. In addition, it can be integrally formed at low cost by press punching. And locking plate Hold the rectifying member in the ventilation cylindrical hole of the Secure the inner wall of the air outlet of the leaner case with the air flow meter mounting screw. To wear. In this way, processing to the air cleaner case for assembling the rectifying member Is not necessary at all, and the locking plate is used for the air cleaner case and the air flow meter. It can be fixed together with the connection, and there is no faulty assembly of the rectifying member and it can be removed. In addition, the locking plate and the rectifying member can be integrally managed.

[0006]   In the second invention of the present invention, the outer wall of the air flow passage of the air cleaner case is arranged at the outlet side. The flow member fitting recess is provided to fit the rectifying member, and the air cleaner case and the air flow The rectifying member is pressed and held between them at the same time as connecting with the meter. This place However, a small amount of processing is required to fit the rectifying member on the outer wall of the air cleaner case. However, the parts for fixing the rectifying member are not required, and the rectifying member must be assembled very well. It is easy and easy to install, has no improper assembly, and does not come off easily.

[0007]

【Example】

  Embodiments of the present invention will be described below with reference to the drawings.   1 and 2 show an embodiment of the first invention, and FIG. 1 is an assembled sectional view showing an essential part. FIG. 2 is a view taken along the line AA of FIG.   In these illustrated examples, 1 is a locking plate, which is provided with a ventilation cylindrical hole 2 in the center, A plurality of locking claws 3 are provided upright on the inner peripheral outer edge of the ventilation cylindrical hole 2. The plate 1 is integrally formed by press punching. 4 is a honeycomb rectifying section With a material, the locking claw 3 is easily caught and can be held stably, The rectifying member 4 is covered with the mat 5 and is kept in the ventilation cylindrical hole 2 of the locking plate 1. Hold it, bend the locking claw 3 and hook it on the grommet 5 at the outer peripheral edge to fix it.   In this way, the locking plate 1 to which the flow regulating member 4 is fixed is attached to the air cleaner case 6 With the mounting screw 8 for connecting the air flow meter 7 and the air flow meter 7, It adheres to the inner wall on the outlet side of the air circulation path of the spacer 6.

[0008]   FIG. 3 is an assembly cross-sectional view showing an essential part of an embodiment of the second invention, which is an air cleaner case. A rectifying section in which an outer peripheral portion of the outer wall on the outlet side of the air circulation path of 6 is covered with a grommet 5. An air cleaner is provided after the rectifying member 4 has been inserted and provided with an insertion recess for inserting the material 4. By connecting the case 6 and the air flow meter 7 with the mounting screws 8, The member 4 is pressed and held.

[0009]

[Effect of device]

  As described above, according to the present invention, the air rectifying unit is installed on the air cleaner case side. Placement, requires no modification of the air cleaner case, or is extremely simple. Assemble the rectification member in the air rectification unit easily and securely by pure processing. You can

[Brief description of drawings]

FIG. 1 is an assembled sectional view of an essential part showing an embodiment of a first invention of the present invention.

FIG. 2 is a view taken along the line AA of FIG.

FIG. 3 is an assembled sectional view of an essential part showing an embodiment of a second invention of the present invention.

FIG. 4 is an assembled cross-sectional view of a main part showing a conventional example.

[Explanation of symbols]

1 Locking plate 2 ventilation cylinder hole 3 locking claws 4 straightening member 5 Grommet 6 air cleaner case 7 Air flow meter 8 mounting screws 11 Rectifying member 12 air flow meter 13 Hot wire type sensor 14 stop ring 15 air cleaner case 16 Air cleaner element

Claims (2)

[Scope of utility model registration request] 1. A rectifying member is held in a ventilation cylindrical hole of a locking plate having a ventilation cylindrical hole in the center and a plurality of locking claws provided upright on the inner peripheral outer edge of the ventilation cylindrical hole and fixed by the locking claw. An air cleaner having an air rectifying portion, characterized in that the locking plate is fixed to the inner wall of the air cleaner passage on the outlet side of the air flow path with an air flow meter mounting screw. 2. An air rectifying portion, characterized in that a rectifying member fitting recess is provided on an outer wall of an outlet side of an air flow passage of the air cleaner case, and the rectifying member is pressed and held by connecting the air cleaner case and an air flow meter. An equipped air cleaner.