JP2019060411A - Sealing structure and sealing parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealing structure and a sealing component capable of avoiding deformation such as distortion and slack of a packing and obtaining highly reliable airtightness during mounting work. SOLUTION: The packing 20 has a packing main body 29 and tabs 21, 22, 23, 24, 25, 26, and a recess 19 for a packing main body and a tab for mounting in a housing 10 of a repeater (repeater). The recesses 11, 12, 13, 14, 15, and 16 are formed. In the repeater manufacturing process, the operator presses and fits each tab in the order according to the numbers displayed on each tab. [Selection diagram] Fig. 1

Description

  The sealing structure and the sealing component according to the present application relate to a technique for mounting a seal for sealing an apparatus.

  Among various devices, there are devices provided with sealing parts (seals) in order to maintain the internal airtightness depending on the purpose of use. By mounting the seal between the component members in contact with each other, it is possible to prevent fluid leakage from between the component members and prevent the intrusion of foreign matter from the outside. The seals include packings used for moving parts and moving parts, and packings used for fixed parts.

  By the way, in order to obtain highly reliable air tightness, it is necessary to attach and attach a seal to a housing or the like of an apparatus at an accurate position and state. As a prior art for realizing this, there is a technique disclosed in Patent Document 1 below.

  In the technique according to Patent Document 1, an elastic locking portion is provided on the packing member, and the elastic locking portion is elastically locked in a locking hole of the packing attachment provided on the device housing side to perform positioning. Then, when the lid body is covered on the device housing, the lid member is pressed against the packing member in a state where the position of the lid body is regulated by the packing attachment, and mounted on the device housing.

JP 2008-192750 A

  However, the technology disclosed in the above-mentioned Patent Document 1 only positions the packing member accurately with respect to the device housing, and distortion or slack of the seal generated in the process of mounting the seal such as the packing on the device housing It does not solve the problem of deformation of

  That is, even if the seal is accurately positioned and mounted on the housing in the packing attachment process, distortion or slack may occur in the seal due to improper pressurization when passing through the work of pressing and pressing each part of the seal. May occur. FIG. 4 is a plan view for illustrating such a subject.

  A groove for inserting the packing 50 is formed in the housing 10 shown in FIG. 4, and the operator first attaches the packing 50 to the groove and performs positioning. After that, the operator presses each part of the packing 50 several times to fit the packing 50 into the groove, but at that time, when the biased part is pressed, the packing 50 is pulled and shrunk, which is caused by these As a result, deformation such as distortion 91 or slack 92 occurs in the packing 50. In particular, in the case of the packing 50 made of an elastic member such as rubber, such deformation of the distortion 91 or the slack 92 is likely to occur.

  Even if the lid is fixed to the housing 10 in the state in which the distortion 91 and the slack 92 occur, reliable airtightness can not be obtained. In order to press the packing 50 so as not to cause the distortion 91 and the slack 92, it is necessary for the operator to be skilled in the mounting work of the packing 50, and it may be difficult to easily carry out the quick and accurate mounting work. .

  Therefore, in order to solve these problems, the sealing structure and the sealing component according to the present application provide a sealing structure and the sealing component which can obtain reliable airtightness by easily performing quick and accurate mounting operation. To be an issue.

The sealing structure according to the present invention is
Body to be mounted,
A sealing part mounted on a predetermined position of the main body and sealing the main body to maintain airtightness, wherein the sealing part is provided with an operation information display instructing a proper mounting operation on the main body;
It is characterized by having.

In addition, the sealing part according to the present invention is
A sealing part mounted at a predetermined position of a main body to be mounted, for sealing the main body to maintain airtightness,
A work information display is formed to instruct proper mounting work on the main body,
It is characterized by

  In the sealing structure and the sealing component according to the present application, the operation information display for instructing the proper mounting operation to the main body is formed on the sealing component. This makes it possible to easily carry out a quick and accurate mounting operation, and as a result, reliable air tightness can be obtained in the main body.

It is a top view which shows the housing | casing 10 and packing 20 which are 1st Embodiment of the sealing structure which concerns on this application, and sealing components. It is a top view which shows the state which attached the packing 20 shown in FIG. 1 to the housing | casing 10. As shown in FIG. It is a top view showing packing 30 which is a 2nd embodiment of the sealing structure concerning the present application, and a sealing part. It is a top view for showing the subject which the conventional sealing structure and sealing parts have.

[Explanation of terms in the embodiment]
The main terms shown in the embodiments correspond to the following elements of the sealing structure and the sealing part according to the present application, respectively.
Casing 10: Main body Recess for tab 11, 12, 13, 14, 15, 16: Main body side fitting part Packing 20, 30: Sealing part Tab 21, 22, 23, 24, 25, 26 , 31, 32, 33, 34, 35, 36 ··· Sealing part side fitting portion Numbers formed on the tabs 21, 22, 23, 24, 24, 25, 26, 31, 32, 33, 34, 35, 36 ... Operation information display, mounting order display Intensity of pressing force, direction of pressing etc ... Operation information display

First Embodiment
A first embodiment of a sealing structure and a sealing component according to the present application will be described. In the present embodiment, a packing attached to the inside of a casing of a repeater (relay unit) used in an industrial plant or the like will be exemplified.

  In a piping system installed in an industrial plant, a steam trap for automatically discharging drain accumulated in the inside is provided everywhere. And in order to manage the operation state of each steam trap, the sensor which detects temperature and vibration may be attached to each steam trap, and each sensor transmits temperature data and vibration data by radio regularly. ing. A repeater is provided to collect and receive these temperature data and vibration data for a certain local range, relay them, and transmit them to a host computer.

  Since this repeater is sometimes installed outdoors, it needs a waterproof structure by sealing. In addition, even when installed indoors, a sealing structure is required to prevent the entry of moisture and foreign matter.

  FIG. 1 shows a case 10 of a repeater and a packing 20 attached to the case 10. The packing 20 has a substantially rectangular shape, and is made of, for example, a rubber material having an elasticity that can achieve sealing of the repeater. And it has the packing main body 29 of a peripheral shape, and six tabs 21, 22, 23, 24, 25, 26 projecting inward from here.

  The tabs 21, 22, 23, 24, 25, 26 are formed on the surface portion of each of the tabs 21, 22, 23, 24, 25, 26 so as to be disposed at an appropriate average spacing in the circumferential direction. The numbers “1”, “2”, “3”, “4”, “5” and “6” are displayed respectively.

  As shown in FIG. 1, two tabs are disposed on each of the long sides, and a pair of consecutively numbered tabs 21 and 22 and tabs 23 and 24 are disposed diagonally. In addition, one tab is disposed to face each other as a pair at substantially central portions of both short sides.

  On the other hand, in the housing 10, a mounting recess corresponding to the shape of the packing 20 is formed in a flat portion. That is, the recess 19 for the packing main body recessed in the circumferential direction is formed, and further, six recesses for the tab 11, 12, 13, 14, 15, 16 are formed inward from the recess 19 for the packing main body .

  In the manufacturing process of the repeater, the operator first places the packing 20 on the flat portion of the housing 10. The state in which the packing 20 is placed on the flat portion of the housing 10 is as shown in FIG. 2, and the packing main body is matched with the packing main body concave portion 19 and the tab concave portions 11, 12, 13, 14, 15, 16 of the housing 10 29 and the tabs 21, 22, 23, 24, 25, 26 are mounted.

  By aligning the tabs 21, 22, 23, 24, 25, 26 provided projecting toward the inside of the packing 20 with the tab recesses 11, 12, 13, 14, 15, 16, the housing 10 is provided. It is possible to position packing 20 correctly in a plane part. Thereby, the malfunction of the sealing resulting from position shift of packing 20 can be avoided.

  From this state, the operator presses each portion of the packing 20 several times to fit the packing 20 into the recess, but at this time, the operator presses in the order according to the numbers displayed on the tabs. That is, the worker presses the surface of each tab toward the recess in the order of the tab 21, the tab 22, the tab 23, the tab 24, the tab 25 and the tab 26, and the tab recess 11, 12, 13, 14, 15 , To fit 16. As a result, the tabs of the packing 20 can be pressed and fitted in a balanced manner on average, and deformation such as distortion or slack of the packing 20 can be avoided.

Second Embodiment
A second embodiment of a sealing structure and a sealing component according to the present application will be described based on FIG. FIG. 3 is a plan view showing the packing 30 according to the present embodiment. Similar to the packing 20 according to the first embodiment, the packing 30 is provided with a packing main body 39 having a circumferential shape and six tabs 31, 32, 33, 34, 35, 36.

  Here, in the present embodiment, unlike the first embodiment, the same number "1" is displayed on both of the tabs 31 and 32, and the same number "2" is displayed on both of the tabs 33 and 34. It is displayed, and the same numeral "3" is displayed on both of the tabs 35 and 36. That is, the same numerals "1" and "2" are displayed on the pair of tabs 31 and 32 and the tabs 33 and 34 arranged on the diagonals of both long sides, respectively, and they become a pair substantially in the central part of both short sides The same number "3" is displayed on the tabs 35, 36 arranged facing each other.

  Then, according to the order of the numbers displayed on these tabs, the operator sequentially presses two tabs 31, 32, tabs 33, 34, and tabs 35, 36 in which the same numbers are displayed simultaneously with both hands, for example. Since a pair of tabs in which the same number is displayed are arranged in a well-balanced manner in the circumferential direction of the packing main body 39, it is possible to press and fit each tab of the packing 30 in a well-balanced manner also in this embodiment. Further, deformation such as distortion or slack of the packing 30 can be avoided, and at the same time, the work efficiency can be enhanced by simultaneously pressing the pair of tabs. The other configuration is the same as that shown in the first embodiment.

Other Embodiments
In the above embodiments, the packing is provided with six tabs. However, five or less or seven or more tabs may be provided. Moreover, although the display of the number was illustrated as mounting | wearing order display, if it is a display which an operator can recognize a press order, for example, English-character "A", "B", "C" ... can also be displayed . Furthermore, in each of the above embodiments, an example is shown in which numbers are displayed on the surface of each tab of the packing, but numbers can also be displayed on the packing main body in the vicinity of each tab.

  Moreover, in each said embodiment, although the packing was fitted and mounted to the recessed part formed in the housing | casing 10, it can also fix and mount using an adhesive agent etc. FIG. Even in this case, in the mounting process of the packing, the operator needs to press the respective parts of the packing to press-fit and fix, so that the mounting can be performed according to the mounting order indication.

  Further, in each of the above-described embodiments, the numerals representing the mounting order display have been illustrated as the operation information display, but for example, information in which the skill of the skilled worker is objectively objective, such as strength and weakness of pressing force and pressing direction You may display it. Furthermore, in each of the above-described embodiments, the packing is taken as an example, but the sealing structure and the sealing component according to the present application can be applied to other sealing materials such as a gasket.

10: Case
11, 12, 13, 14, 15, 16: Recess for fitting
20, 30: Packing
21, 22, 23, 24, 25, 26, 31, 32, 33, 34, 35, 36: Tabs

Claims (4)

Body to be mounted,
A sealing part mounted on a predetermined position of the main body and sealing the main body to maintain airtightness, wherein the sealing part is provided with an operation information display instructing a proper mounting operation on the main body;
Sealed structure characterized by having. In the sealing structure according to claim 1,
The sealing structure characterized in that the work information display is a mounting order display which indicates a mounting order of the sealing component to the main body. In the sealing structure according to claim 1,
The main body side fitting portion is formed on the main body,
The sealing component has a sealing component side fitting portion fitted to the main body side fitting portion,
The work information display is formed on the sealing component side fitting portion,
Sealed structure characterized by A sealing part mounted at a predetermined position of a main body to be mounted, for sealing the main body to maintain airtightness,
A work information display is formed to instruct proper mounting work on the main body,
Sealing parts characterized by

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