JP3029883U - Call button - Google Patents

Abstract

(57) Abstract: A malfunction of an electronic component on a substrate due to static electricity entering from a case fitting portion is avoided without a resin filling process that peels off over time. SOLUTION: An upper case 1 and a lower case 2 are connected to each other and a middle case 3 for partitioning the upper case and the lower case is provided. The push button 4 having the magnet 42 on the shaft 41 and the reed switch 5 facing the magnet of the push button and mounted on the lower grip case side of the middle case are provided between the middle case and the upper grip case and between the middle case and the lower case. The grip cases are all screwed and fixed, and the middle case has ribs 35 along the lower grip case. Even if it enters from between the upper grip case and the lower grip case, the screwed part 31,
Even if the ribs 32 and the ribs impede the straight movement and enter the upper grip case from around the push button, the electronic parts on the substrate cannot be reached because they are blocked by the partition 33 of the middle case.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a call button, and more particularly, to a call button for a sick person or the like to operate a switch while gripping the main body.

[0002]

[Prior art]

 A call button is provided near the sick or physically handicapped person in a hospital or house so that they can call for help when they feel sick and want to call someone. . As shown in FIG. 2 (a), the conventional call button has a built-in substrate 7 on which electronic components 8 such as a push switch are mounted in a main body case 9, and a push button 40 for driving the push switch 8 is provided. The cable L arranged and connected to the substrate 7 is connected to a cable outlet provided on a wall surface or the like.

The main body case 9 is formed by fitting two case parts 91 and 92, and the fitting parts 90 and 90 of the two case parts 91 and 92 (see FIG. 7C) are made of silicon-based material. The resin R is filled to fill the gap ((b) in the figure). When the person wants to call a person from the sick bed, this call button presses the push button 40 while holding the main body case 9 to operate the push switch 8. Normally, the cable L is placed on the bed frame. Often.

[0004]

[Problems to be solved by the device]

 By the way, a large amount of static electricity is generated when the sheets are changed regularly, and the static electricity (arrow A in FIGS. 2A and 2C) is generated from the fitting portions 90, 90 of the call button body case 9 to the substrate. There was a problem that it jumped to No. 7 and caused a malfunction of the electric device connected to the substrate 7.

In order to prevent static electricity from entering from the fitting parts 90, 90 of the main body case 9, the fitting parts 90, 90 of the two case parts 91, 92 are filled with the silicone resin R. It takes a lot of time to fill the silicone resin R and wipe the surface to make it look like the main body case 9, and there is a drawback that the silicone resin R peels off over time. It was

Further, as indicated by an arrow B in FIG. 2A, static electricity invades from around the push button 40, which similarly causes a malfunction of an electric device connected to the substrate 7. An object of the present invention is to solve the above-mentioned problems and to provide a call button capable of preventing static electricity from entering from the fitting portion of the main body case.

[0007]

[Means for Solving the Problems]

 The call button according to the present invention is arranged between the upper grip case and the lower grip case and also divides the upper grip case and the lower grip case from each other, and is arranged between the upper grip case and the middle case on the lower grip case side. It consists of a push button that has a magnet on the protruding shaft and a lead switch that faces the push button magnet and is attached to the lower grip case side of the middle case. All the lower grip cases are screwed and fixed, and the middle case has ribs along the lower grip case.

Even if static electricity entered into the inside of the upper and lower grip cases of the call button, the distance was extended by the middle case, and it did not reach the electronic parts on the board, and it was connected to the board. Occurrence of malfunction of electric equipment is avoided. Also, even if static electricity enters the upper grip case from around the push button, it is similarly partitioned from the malfunction of the electrical equipment in the lower grip case because it is partitioned by the middle case.

[0009]

【Example】

 An embodiment of the call button according to the present invention will be described below in detail with reference to the drawings. A call button is provided near the sick or physically handicapped person in a hospital or house so that they can call for help when they feel sick and want to call someone. .

This call button is used to call a person from the hospital bed by pressing the push button while holding the main body by hand, and usually a cable is often placed on the bed frame. . As shown in FIGS. 1 (a) and 1 (b), in the call button H according to the present invention, an upper grip case 1 and a lower grip case 2 are connected and fixed by a middle case 3.

The middle case 3 and the upper grip case 1 are threaded on the threaded portions 31 and 13, and the middle case 3 and the lower grip case 2 are threaded on the threaded portions 32 and 23. Then, the middle case 2 and the upper grip case 1 and the middle case 2 and the lower grip case 3 are all screwed and fixed by a screw thread. Further, the middle case 2 is provided with a partition 33 for partitioning the upper grip case 1 and the lower grip case 2, and a central portion of the partition 33 has a partition projection 34 protruding to the lower grip case 2 side. In the outer peripheral portion of the lower grip case, there is a rib 35 extending to the screw 32 and extending along the lower grip case. The length of the rib 35 is appropriately selected according to the electrostatic capacity. The partition convex portion 34 is preferably made of synthetic resin having a thickness that allows the reed switch 5 to be described later to detect magnetic force fluctuations due to the position change of the magnet 42 to be described later.

A push button 4 is arranged in the upper grip case 1. The push button 4 is provided with a shaft 41 having a magnet 42 at the tip which is inserted into and removed from the partition convex portion 34 of the middle case 2, and a spring 43 as an elastic material is stretched between the push button 4 and the partition 33 of the middle case 2. A board 6 is fixed to the lower grip case 2 side of the middle case 3 by fitting or adhering, and the reed switch 5 and other electronic parts are mounted on the board 6. The reed switch 5 is installed at a position where it can be operated by the magnetic force variation accompanying the position change of the magnet 42 of the push button 4.

A cable L that is connected to the outside from the end 21 of the lower grip case 2 is connected to the board 6. The operation of the call button according to the present invention will be described below. As shown in FIG. 1B, the calling button H according to the present invention has no fitting portion that divides the circumference of the cross section, and the upper grip case 1 and the lower grip case 2 are connected via the middle case 3. Therefore, even if a large amount of static electricity is generated when the sheets are changed on a regular basis, the screwing portions 23 and 32 of the lower grip case 2 and the middle case 3 and the ribs 35 on the lower grip case 2 side can keep going straight. The disturbed static electricity does not reach the substrate 6, and the malfunction of the electric device connected to the substrate is avoided.

Further, even if static electricity enters the upper grip case 1 from around the push button 4, the partition 33 of the middle case 2 separates it from the lower grip case 2 having the substrate 6, and the substrate 6 and the upper grip case 1 are separated from each other. Since the electronic component (not shown) is in a semi-sealed state, it does not reach the lower grip case 2 and the malfunction of the electric device connected to the board 6 is similarly avoided.

Further, the step of filling the silicon-based resin, which takes time and is peeled off with the lapse of time, is eliminated.

[0016]

[Effect of device]

 According to the call button according to the present invention, the upper grip case and the lower grip case are connected to each other, and the upper grip case and the lower grip case are separated from each other, and the lower grip case side is disposed between the upper grip case and the middle case. It consists of a push button with a magnet on its protruding shaft and a lead switch that faces the push button magnet and is attached to the lower grip case side of the middle case. All of the lower grip cases are screwed and fixed, and the middle case has ribs along the lower grip case, so even if static electricity enters between the upper and lower grip cases of the call button, The middle case extends the distance and does not reach the electronic components on the board.Also, even if static electricity enters from the periphery of the push button into the upper grip case, the middle case partitions Because it is cross-sectional, malfunction occurs in the electrical equipment connected to the substrate in the lower grip casing is avoided as well.

Further, it is possible to exclude a process of filling the silicon-based resin, which takes time and is peeled off with the lapse of time.

[Submission date] April 30, 1996

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

The middle case 3 and the upper grip case 1 are threaded on the threaded portions 31 and 13, and the middle case 3 and the lower grip case 2 are threaded on the threads 32 and 23. The middle case 3 And upper grip case 1 and middle case3Both the lower grip case 3 and the lower grip case 3 are fixed by screws. Also, the middle case3Is provided with a partition 33 for partitioning the upper grip case 1 and the lower grip case 2, a central portion of the partition 33 has a partition projection 34 protruding toward the lower grip case 2, and further, a middle case.3In the outer peripheral portion of the lower grip case, there is a rib 35 extending to the screw 32 and extending along the lower grip case. The length of the rib 35 is appropriately selected according to the electrostatic capacity. The partition convex portion 34 is preferably made of synthetic resin having a thickness that allows the reed switch 5 to be described later to detect magnetic force fluctuations due to the position change of the magnet 42 to be described later.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

A push button 4 is arranged in the upper grip case 1. Push button 4 is the middle case 3 Of the middle case3 A spring 43 is stretched between the partition 33 and the partition 33 as an elastic material. A board 6 is fixed to the lower grip case 2 side of the middle case 3 by fitting or adhering, and the reed switch 5 and other electronic parts are mounted on the board 6. The reed switch 5 is installed at a position where it can be operated by the magnetic force variation accompanying the position change of the magnet 42 of the push button 4.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

Further, even when static electricity intrudes into the upper grip casing 1 from the periphery of the push button 4, the partition 33 of the middle cases 3 partitioned and lower grip casing 2 with a substrate 6, the substrate 6 and the substrate Since the electronic component (not shown) is in a semi-sealed state, it does not reach the lower grip case 2 and the malfunction of the electric device connected to the board 6 is similarly avoided.

[Brief description of drawings]

1A and 1B are views for explaining the structure of a call button according to the present invention.

2A to 2C are views for explaining the structure and operation of a conventional call button.

[Explanation of symbols]

 1 ... Upper grip case 2 ... Lower grip case 3 ... Middle case 35 ... Rib 4 ... Push button 41 ... Shaft 42 ... Magnet 5 ... Reed switch

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[Procedure amendment]

[Submission date] April 30, 1996

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

FIG.

Claims (1)

[Scope of utility model registration request] 1. A middle case (3) for connecting the upper grip case (1) and the lower grip case (2) and partitioning the upper grip case and the lower grip case, and between the upper grip case and the middle case. And a push button (4) having a magnet (42) on a shaft (41) projecting toward the lower grip case side, and facing the magnet of the push button, on the lower grip case side of the middle case. The reed switch (5) is attached, and both the middle case and the upper grip case and the middle case and the lower grip case are screwed and fixed, and the middle case extends along the lower grip case. Call button characterized by having ribs (35).