JPH0631371Y2 - Fluid indicator mounting mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting mechanism for an indicator for fluid, and more specifically, an indicator that is incorporated in an operating circuit of a fluid pressure device and indicates the fluid pressure in the circuit is attached to a panel. A mechanism for fitting the indicator instrument to the cover member, positioning the cover member integrally with the indicator instrument in the hole formed in the panel, and then tightening with the tightening member. The present invention relates to a mounting mechanism for a fluid indicating instrument which is configured so that the indicating instrument can be easily attached to a panel and can have a beautiful appearance.

For example, conventionally, in a fluid pressure circuit for operating a fluid device such as a pneumatic motor and a pneumatic cylinder, the state of the fluid in the fluid pressure circuit, for example, as an indicator instrument for visually observing the fluid pressure from the outside Pressure gauges are widely used. In this case, it is preferable that the pressure gauge is mounted together with an indicator of an electric circuit on a panel that can be more easily confirmed than in a place where it is difficult to visually recognize the inside of the machine.

By the way, the pressure gauge is generally composed of a substantially columnar main body and a flange portion that surrounds the main body and integrally projects. Therefore, when the pressure gauge is attached to the panel, screw holes corresponding to a plurality of holes formed in the flange portion of the pressure gauge are formed in the panel, and screws are provided in these holes and the screw holes. At present, the pressure gauge is fixed to the panel by charging.

However, since the flange portion of the pressure gauge is formed around the axially intermediate portion of the body portion of the pressure gauge, the body portion often projects considerably from the panel surface. Moreover, there is no external appearance in agreement with other indicating instruments attached to the panel, for example, indicating instruments of the electric system due to a difference in manufacturing series, and accordingly, a plurality of indicating instruments arranged on the entire panel. It has been pointed out that it is extremely difficult to present a unified aesthetic among instruments.

Further, when the pressure gauge is mounted on the panel, as described above, it is necessary to form a screw hole corresponding to the hole formed in the flange portion of the pressure gauge on the panel. However, the drilling work is extremely troublesome because the work is performed on site. Therefore, the work efficiency for mounting the pressure gauge and the like on the panel is significantly reduced. On the other hand, if a screw hole for mounting the indicator on the panel is preliminarily drilled, there is a positional difference between the screw hole and the hole formed in the flange portion of the pressure gauge. If it happens,
It has been pointed out that it is very difficult to attach the pressure gauge to the panel.

Further, since the main body of the pressure gauge is formed in a substantially cylindrical shape, a pipe line for introducing pressure fluid is screwed into the fluid pressure introduction port of the pressure gauge attached to the panel for connection. In doing so, there is an inconvenience that the pressure gauge rotates and it is difficult to connect the pipeline.

The present invention has been made to overcome the above-mentioned inconvenience, and includes a cover member having a hole formed in the axial direction and a tightening member that engages with the cover member. Then, the cover member and the indicating instrument are integrally fitted into the hole formed in the panel, and then the tightening member is attached to the cover member from the back surface of the panel to instruct the panel. An object of the present invention is to provide a mounting mechanism for a fluid indicating instrument which is configured to fix the indicating instrument, thereby facilitating the work of attaching the indicating instrument and providing an excellent appearance.

In order to achieve the above object, the present invention provides a mounting mechanism for mounting a substantially cylindrical fluid indicating instrument connected to a fluid pressure device through a fluid pressure introducing port on a panel, A cover member defining a substantially circular hole for fitting in a state of surrounding the outer peripheral surface of the indicating instrument, and a tightening member screwed to the cover member, wherein the cover member is a panel A flange portion in contact with the front surface, and a peripheral end portion is tapered in diameter from the flange portion side toward the back surface side of the panel and is bent toward the center direction, and a plurality of end portions are defined. A plurality of tongues formed by slits, and a protrusion provided between the tongues and abutting against a hole formed in the fluid indicating instrument to prevent rotation of the fluid indicating instrument. The fluid indicating instrument is provided with a cover member. When fitted into the hole,
One end side of the tongue piece expands in diameter and holds the fluid indicating instrument by an elastic force generated thereby, and further, the curved peripheral end portion prevents the fluid indicating instrument from coming off,
The cover member is provided with an engaging projection that is fitted into a hole defined in the panel to position the cover member, and a flange portion of the cover member that comes into contact with the front surface of the panel and a back surface of the panel come into contact with the flange portion. It is characterized in that a panel is interposed between the tightening member and the tightening member.

A preferred embodiment of a mounting mechanism for a fluid indicator according to the present invention will now be described in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a mounting mechanism of a fluid indicating instrument according to the present invention, and the mounting mechanism 10 basically includes a cover member 12 and a ring-shaped tightening member 14. In this case, the cover member 12 is formed to have a substantially cylindrical shape, and the hollow portion extending in the axial direction of the cover member 12 is formed.
12a is configured so that a pressure gauge 16 shown by a chain double-dashed line can be fitted therein. The pressure gauge 16 then preferably has a recess on the outer peripheral surface.

A flange portion 18 is formed on one end side of the cover member 12, and one surface portion 18a of the flange portion 18 has the cover member 12
Has a taper shape that is directed from one end to the other end and inclines radially outward. A bulging portion 18b bulging outward in the radial direction is formed on the outer peripheral surface of the flange portion 18, and the substantially central portion of the bulging portion 18b is directed toward the other end side of the cover member 12. Engagement protrusions 20 are formed.

A threaded portion 22 having a diameter smaller than that of the flange portion 18 is formed at an intermediate portion of the cover member 12, and the threaded portion 22 extends from the vicinity of the other end surface portion of the flange portion 18 to a substantially central portion of the cover member 12. Exists Further, there is provided a taper portion 24 that gradually decreases in diameter from the end portion of the screw portion 22 toward the other end portion of the cover member 12, and the end portion of the taper portion 24 has a radius of the cover member 12. It is formed so as to bend inward. In this case, the tapered portion 24 is formed with a plurality of slits 26 extending from the end portion to the end portion of the screw portion 22, whereby the tapered portion 24 is substantially bent at the plurality of end portions. It has tongues 27a to 27h. The tongue piece 27a has an opening 28 defined in the same direction as the slit 26. The screw portion is provided in the opening 28.
A protrusion that protrudes from the end of 22 to the middle of the opening 28.
A protrusion 32 is formed at the tip of the protrusion 30 and faces slightly inward in the radial direction.

On the other hand, the ring-shaped tightening member 14 is engraved on its inner peripheral surface with a screw groove 34 for screwing with the screw portion 22 of the cover member 12, and the outer peripheral surface of the tightening member 14 is covered with the cover. Element
The flat knurls 36 are formed to facilitate the screwing operation when the threaded portions 22 are screwed together.

The mounting mechanism of the indicator for fluid according to the present invention is basically constructed as described above. Next, its operation and effect will be described.

First, in the state shown in FIG. 1, the pressure gauge 16 is fitted into the hollow portion 12a of the cover member 12. In this case, the cover member 12 covers substantially the entire outer peripheral surface of the pressure gauge 16 and, in the tapered portion 24 of the cover member 12, the tongue pieces 27a to 27h.
The diameter of the end of the pressure gauge 16 is enlarged by the outer peripheral surface of the pressure gauge 16 until it becomes a substantially straight state. The tongue pieces 27a to 27h forming the tapered portion 24 by expanding the diameter as described above.
The pressure gauge 16 is gripped by the elastic force generated in the. Further, the protrusion 3 formed on the tongue piece 27a of the cover member 12
2 engages with a recess defined in the outer peripheral surface of the pressure gauge 16, whereby the pressure gauge 16 is a hollow portion of the cover member 12.
The inconvenience of causing an unnecessary turning operation in 12a is prevented in advance.

Next, the cover member 12 is inserted into the hole 40a formed in the panel 40 with the pressure gauge 16 fitted. in this case,
An engaging hole 40b having a diameter considerably smaller than that of the hole 40a is provided in the vicinity of the hole 40a formed in the panel 40 in advance.
Therefore, when the cover member 12 is completely inserted, the flange portion 18 of the cover member 12 abuts on the surface portion of the panel 40, and the bulging portion 18b bulges from the flange portion 18.
The engaging convex portion 20 formed in the above is fitted into the engaging hole portion 40b defined in the panel 40, and the cover member 12 is positioned at a suitable position (see FIG. 2).

Next, the ring-shaped tightening member 14 is screwed into the threaded portion 22 formed on the outer peripheral surface of the cover member 12 from the taper portion 24 side of the cover member 12. The tightening member 14 is displaced toward the back surface of the panel 40 by its screwing operation, and eventually,
One end surface of the tightening member 14 is pressed against the back surface of the panel 40. Thereby, the panel 40 is attached to the cover member 12.
It is sandwiched by the flange portion 18 and the tightening member 14, and as a result, the pressure gauge 16 fitted to the cover member 12 is mounted on the panel 40 (see FIG. 2).

Incidentally, when it is necessary to remove the pressure gauge 16 together with the cover member 12 from the panel 40 by the adjustment work of the fluid device or the like that is operated by the circuit in which the pressure gauge 16 is incorporated, the tightening member 14 is different from the above. Screw displacement in the opposite direction,
By simply removing the tightening member 14 from the cover member 12, the pressure gauge 16 and the cover member 12 can be integrally removed from the panel 40. When it is necessary to replace only the pressure gauge 16 with another indicator, press the pressure gauge 16 from the back side of the cover member 12 and the tightening member 14 attached to the panel 40. It is possible to remove the cover member 12 and replace it with another indicating instrument.

Further, according to the present embodiment, the processing work performed on the panel 40 to attach the pressure gauge 16 to the panel 40 includes the work of forming the hole 40a into which the cover member 12 is inserted and the work of the hole 40a.
This is only the work of forming the engaging hole portion 40b provided in the vicinity. Therefore, unlike the prior art, it is not necessary to perform a complicated work such as providing a panel with screw holes corresponding to a plurality of holes provided in the pressure gauge, and the work of attaching the pressure gauge 16 is efficiently performed. It becomes possible.

As described above, according to the present invention, the attachment mechanism for attaching the indicator instrument such as the pressure gauge to the panel is constituted by the cover member into which the indicator instrument is fitted and the tightening member engaged with the cover member. is doing. Further, when the indicator instrument is fitted to the cover member, a protrusion that engages with a hole provided on the outer peripheral surface of the indicator instrument to prevent unnecessary rotation of the indicator instrument in the cover member. Is provided. Along with this, an engaging convex portion is provided on the cover member, and the engaging convex portion is fitted into an engaging hole portion provided in a panel on which the indicating instrument is mounted to position the cover member at a suitable position. is doing.

In such a configuration, when mounting the indicator on the panel, first, after fitting the indicator on the cover member, the cover member is inserted from the surface of the panel, and then the tightening member. Is engaged with the cover member from the back side of the panel, whereby the indicating instrument is mounted on the panel. Therefore, not only the processing for applying the pressure gauge to the panel is extremely easy, but also the operation of replacing the indicating instrument attached to the panel with another indicating instrument can be easily performed, and as a result, the indicating instrument is attached to the panel. The advantage is that the work efficiency for mounting on the can be further improved.

Further, as easily understood from the above-mentioned embodiment,
If the mounting mechanism of the indicator for fluid according to the present invention is adopted,
There are few portions protruding from the panel surface portion, and the effect that the appearance is beautiful is also obtained.

Further, the protrusion provided between the tongues comes into contact with the hole formed in the fluid indicating instrument to prevent the fluid indicating instrument from rotating, thereby connecting the fluid pressure introducing port with the pipeline. Can be performed easily. In addition, the bottom surface of the fluid indicating instrument mounted on the panel is restricted by the peripheral end portion of the tongue that is bent toward the center, and the fluid indicating instrument is prevented from coming out of the hole of the cover member. You can

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a mounting mechanism for a fluid indicating instrument according to the present invention, and FIG. 2 is a partially omitted cross section showing a state in which the indicating instrument is mounted on a panel by the mounting mechanism for a fluid indicating instrument according to the present invention. FIG. 10 …… Mounting mechanism, 12 …… Cover member 14 …… Tightening member, 16 …… Pressure gauge 20 …… Engagement projection, 32 …… Projection

Claims (1)

[Scope of utility model registration request] 1. A mounting mechanism for mounting a substantially cylindrical fluid indicating instrument connected to a fluid pressure device through a fluid pressure introducing port on a panel, the surrounding mechanism surrounding the outer peripheral surface of the fluid indicating instrument. Consisting of a cover member in which a substantially circular hole for fitting in a state of being defined is defined, and a tightening member that is screwed into the cover member, wherein the cover member has a flange portion that contacts the panel surface, A plurality of circumferential edges are tapered from the flange portion side toward the back surface side of the panel and bent toward the center, and are formed by a plurality of slits defined at the ends. A tongue piece, and a protrusion provided between the tongue pieces, which abuts on a hole formed in the fluid indicating instrument to prevent rotation of the fluid indicating instrument, the fluid indicating instrument When fitting into the hole of the cover member,
One end side of the tongue piece expands in diameter and holds the fluid indicating instrument by an elastic force generated thereby, and further, the curved peripheral end portion prevents the fluid indicating instrument from coming off,
The cover member is provided with an engaging projection that is fitted into a hole defined in the panel to position the cover member, and a flange portion of the cover member that comes into contact with the front surface of the panel and a back surface of the panel come into contact with the flange portion. A mounting mechanism for a fluid indicating instrument, characterized in that a panel is interposed between the tightening member and the clamping member.