Chain guide assembly frame

Patent metadata

Field	Value
Publication number	US-11933400-B2
Application number	US-202218080261-A
Country	US
Kind code	B2
Filing date	Dec 13, 2022
Priority date	Dec 20, 2021
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

To provide a chain guide assembly frame capable of efficiently collecting the oil that adhered to various parts of the chain guide assembly, and guiding the collected oil to predetermined locations, to allow efficient use of oil, with a simple structure. The chain guide assembly frame includes driven sprocket holding portions, a fixed chain guide, and a pivoting chain guide holding portion on a main body. A drive sprocket holding portion is provided at a position lower than the driven sprocket holding portions. The main body includes a concave and/or convex oil passage that extends from an upper part toward a lower part to guide the oil toward above the drive sprocket holding portion.

First claim

What is claimed is:

1. A chain guide assembly frame comprising a main body and a driven sprocket holding portion that is able to clamp a driven sprocket in an upper part of the main body,
the main body including a fixed chain guide, and a pivoting chain guide holding portion that is able to mount a pivoting chain guide,
the driven sprocket holding portion including a fixed-guide-side sprocket holding portion provided on a fixed chain guide side, and a pivoting-guide-side sprocket holding portion provided on a pivoting chain guide holding portion side,
the main body including a drive sprocket holding portion that is able to hold a drive sprocket and located lower than the driven sprocket holding portion,
the main body including a concave, convex, or concave-and-convex oil passage extending from the upper part toward a lower part to guide oil toward above the drive sprocket holding portion,
the main body includes, in the upper part thereof, a top guide provided, and
the oil passage includes an upper oil passage formed continuously extending from the top guide through between the fixed-guide-side sprocket holding portion and the pivoting-guide-side sprocket holding portion, and a lower oil passage formed at a position lower than the upper oil passage.

2. The chain guide assembly frame according to claim 1 , wherein the oil passage, at a lower end thereof on a drive sprocket holding portion side, diverges into a fixed-guide-side oil passage formed extending toward the fixed chain guide and a pivoting-guide-side oil passage formed extending toward the pivoting chain guide holding portion.

3. The chain guide assembly frame according to claim 2 , wherein the pivoting-guide-side oil passage has a lower end formed to be positioned directly above the drive sprocket holding portion.

4. The chain guide assembly frame according to claim 1 , wherein the upper oil passage has a lower end formed to be positioned directly above a topmost part of the lower oil passage.

5. The chain guide assembly frame according to claim 1 , wherein
the lower oil passage includes a fixed-guide-side lower oil passage formed extending toward the fixed chain guide, and a pivoting-guide-side lower oil passage formed extending toward the pivoting chain guide holding portion, and
the upper oil passage diverges to have a lower end to be positioned directly above the fixed-guide-side lower oil passage and a lower end to be positioned directly above the pivoting-guide-side lower oil passage.

6. The chain guide assembly frame according to claim 1 , wherein the upper oil passage includes a fixed-guide-side upper oil passage formed on a fixed-guide-side sprocket holding portion side, and a pivoting-guide-side upper oil passage formed on a pivoting-guide-side sprocket holding portion side.

7. The chain guide assembly frame according to claim 6 , wherein
the lower oil passage includes a fixed-guide-side lower oil passage formed extending toward the fixed chain guide, and a pivoting-guide-side lower oil passage formed extending toward the pivoting chain guide holding portion, wherein the fixed-guide-side upper oil passage,
the fixed-guide-side upper oil passage has a lower end formed to be positioned directly above the fixed-guide-side lower oil passage, and
the pivoting-guide-side upper oil passage has a lower end formed to be positioned directly above the pivoting-guide-side lower oil passage.

8. The chain guide assembly frame according to claim 1 , wherein the oil passage is formed in a weld bead shape.

Assignees

• Tsubakimoto Chain Co

Inventors

• Nyga Volkmar
• Ohsawa Seigo
• Lim Sung-Hwan
• Maeda Munehiro
• Oshima Yuji

Classifications

• F16H7/18 Primary

  Means for guiding or supporting belts, ropes, or chains (construction of pulleys F16H55/36) · CPC title

• F02B67/06

  driven by means of chains, belts, or like endless members · CPC title

• F16H57/0424

  Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes · CPC title

• F16H7/06

  with chains · CPC title

• F16H7/08

  Means for varying tension of belts, ropes or chains  (pulleys of adjustable construction F16H55/52) · CPC title