JP3141775U - Tire pressure detector / valve stem assembly - Google Patents

Abstract

A tire pressure detector / val system assembly in which a clamping surface is formed to improve the assemblability of a valve system to a rim in order to monitor the air pressure inside a tire of a vehicle.
A tire pressure detector / valve stem assembly includes a valve stem, a wireless pressure detector, and a fastener. The valve stem has an outer portion 11 and an inner portion 12. The inner portion is integrally and coaxially formed with the outer portion and has a distal end, an outlet hole 122, a side wall, and at least one clamping surface 124. The at least one clamping surface is flat and is formed tangentially on the side wall. In assembly, all that is required is a conventional tool such as a clamp or wrench to clamp the inner part with the clamping surface when attaching or removing the valve stem to or from the rim.
[Selection] Figure 1

Description

  The present invention relates to a tire pressure detector / valve stem assembly, and more particularly, to a tire pressure detector / valve stem assembly in which a tightening surface is formed to improve assembly of the valve stem to a rim.

  Car electronics has been greatly improved in recent years due to the increasing interest in driving safety at present. For example, a tire pressure monitoring system (TPMS) is applied to monitor the air pressure inside the tire of a vehicle.

  In FIG. 6, a conventional valve stem (60) designed to be coupled to a tire pressure detector has an inner portion (62). When the valve stem (60) is secured to the rim, the inner portion (62) is located between the rim and the tire. The inner portion (62) has a distal end, a sidewall, and a fixation hole (622). The distal end is dome-shaped. The fixing hole (622) is formed in the side wall. In order to prevent the inner part (62) from rotating when the valve stem (60) is attached to or removed from the rim, a special repair tool corresponding to the fixing hole (622) is required. However, if the valve stem (60) needs to be assembled or disassembled, the operator must find a specific service center with special repair tools, which is cumbersome. Furthermore, after attaching the valve stem (60) to the rim using a special repair tool, the fixing hole (622) is likely to break.

  The present invention provides a tire pressure detector / valve stem assembly that eliminates or reduces the disadvantages of the conventional valve stem.

  A main object of the present invention is to provide a tire pressure detector / valve stem assembly that improves the assemblability of a valve stem for a tire pressure detector to a rim.

  The tire pressure detector / valve stem assembly includes a valve stem, a wireless pressure detector, and a fastener. The valve stem has an outer portion and an inner portion. The inner portion is integrally and coaxially formed with the outer portion and has a distal end, an outlet hole, a side wall, and at least one clamping surface. At least one clamping surface is flat and is tangentially formed on the side wall. Therefore, in order to clamp the inner portion with the clamping surface when attaching or removing the valve stem to or from the rim, only a normal tool such as a clamp or a spanner is required.

  Other objects, advantages and novel features of the present invention will become apparent from the following detailed description considered in conjunction with the accompanying drawings.

  1 and 2, the tire pressure detector / valve stem assembly according to the present invention includes a valve stem (10), a wireless pressure detector (20), and a fastener (30).

  The valve stem (10) is tubular and has an outer part (11) and an inner part (12).

  The outer part (11) has a fixing nut (111). The fixing nut (111) is detachably and rotatably attached to the outer portion (11).

  The inner portion (12) is integrally and coaxially formed with the outer portion (11) and has a distal end, an outlet hole (122), a side wall, and at least one clamping surface (124).

  The distal end has a domed surface.

  The outlet hole (122) is formed in the center of the dome-shaped surface so as to penetrate therethrough, and is formed in the longitudinal direction through the inner portion (12), and has an inner thread surface.

  At least one clamping surface (124) is tangentially formed on the side wall, is flat and can be clamped with a tool such as a clamp or spanner.

  4 and 5, at least so that the tool can selectively and securely clamp the pair of clamping surfaces (124) and the valve stem (10) is versatile and highly convenient. A pair of parallel clamping surfaces (124) are preferably formed on the side walls of the inner portion (12).

  The wireless pressure detector (20) is an electronic pressure detection module, detects an air pressure of a tire adjacent to the detector, transmits an electromagnetic wave signal corresponding to the air pressure to a tire pressure measurement system (TPMS), and It has a mounting surface (22) and a mounting slot (222).

  The mounting surface (22) is concave and corresponds to the dome-shaped surface.

  The attachment slot (222) is formed through the attachment surface (22).

  The fastener (30) is slidably and rotatably mounted through the mounting slot (222) and secures the wireless pressure detector (20) to the dome-shaped surface at the distal end of the inner portion (12). And is screwed to the inner threaded surface of the outlet hole (122) and has a hole (32). The hole (32) is formed in the longitudinal direction through the fastener (30).

  3 and 3A, when attaching the valve stem (10) to the rim (40) of the tire (50), first, the fixing nut (111) is rotated and loosened. The technician then clamps the inner portion (12) so that the valve stem (10) does not rotate when the locking nut (111) is rotated back toward the rim (40), and In order to clamp the rim (40) with the fixing nut (111), a clamp tool may be used. The wireless pressure detector (20) is then secured to the domed surface at the distal end of the outer portion. The wireless pressure detector (20) to be mounted is mounted on the valve stem (10) so that the angle and position of the detector (20) relative to the rim (40) can be changed by placing a dome-like surface on the valve stem (10). 10) can be rotated and adjusted.

  Although a number of features and advantages of the present invention have been described in the above description, together with details of its structure and function, the above disclosure is illustrative only. In particular, the shape, size and arrangement of the components can be changed within the scope of the principles of the present invention within the broad general meaning of the terms used in the appended claims. It is.

FIG. 1 is an exploded perspective view of a tire pressure detector / valve stem assembly according to the present invention. FIG. 2 is a perspective view of a valve stem having a clamping surface of the assembly of FIG. 3 is a perspective view showing the operation of a portion of the tire pressure detector / valve stem assembly of FIG. 1, showing the valve stem mounted through the tire rim. 3A is an enlarged side view of a portion of the tire pressure detector and valve stem assembly of FIG. FIG. 4 is a perspective view of a second embodiment of a tire pressure detector / valve stem assembly according to the present invention having a pair of clamping surfaces. FIG. 5 is a perspective view of a third embodiment of a tire pressure detector / valve stem assembly according to the present invention having two pairs of clamping surfaces. FIG. 6 is a perspective view of a conventional valve stem according to the prior art.

Claims (5)

A tubular valve stem,
An outer portion having a fixing nut that is detachably and rotatably mounted;
An inner portion formed integrally and coaxially with the outer portion;
A distal end having a dome-shaped surface;
An outlet hole formed through the center of the dome-shaped surface and extending longitudinally through the inner portion and having an inner thread surface;
Side walls,
A valve stem having an inner portion having at least one flat clamping surface formed tangentially on the side wall;
A wireless pressure detector that is an electronic pressure detection module for detecting an air pressure of a tire and transmitting an electromagnetic wave signal corresponding to the air pressure,
A concave mounting surface corresponding to the dome-shaped surface of the distal end of the inner portion of the valve stem;
A wireless pressure detector having a mounting slot formed through the mounting surface;
A tire pressure detector / valve stem assembly having a fastener that is slidably and rotatably mounted through the mounting slot and screwed to the inner thread surface of the outlet hole of the valve stem. The tire pressure detector / valve stem assembly according to claim 1, wherein the fastener further has a hole formed in a longitudinal direction through the fastener. The tire pressure detector / valve stem assembly according to claim 2, wherein the inner portion has two clamping surfaces formed on the side wall and parallel to each other. The tire pressure detector and valve stem assembly of claim 2, wherein the inner portion has two pairs of parallel clamping surfaces formed on the side wall. The tire pressure detector and valve stem assembly according to claim 2, wherein the inner portion has multiple pairs of parallel clamping surfaces formed on the side wall.

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