JP4021239B2 - Member indicating device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
This invention is attached to the frontal head of the member storage shelf, confirms the position and presence of the member, etc., operates the switch when the member is removed, and confirms the input of member removal and reduces the number of members. The present invention relates to a member indicating device to be confirmed.
[0002]
[Prior art]
2. Description of the Related Art In production lines such as automobiles, a flow work method is generally introduced in which products are sequentially assembled while a product is conveyed at a constant speed by a conveyor or the like. In such a flow work method, each operator attaches a predetermined type of member to a predetermined position each time a product is conveyed. However, the same product is not necessarily manufactured all day on the same line, and job changes (specification changes) may be performed several times a day. There are also hybrid lines that produce different types of products at the same time. In these lines, the parts to be installed must be changed according to the product.
[0003]
When the specification is changed, it is necessary to switch from a member according to the specification of the product that has been flown until now, and prepare and attach a member that matches the specification of the product to be flowed next. However, the operator always attaches the same type of parts, and the parts are stored in a storage shelf that divides multiple kinds of parts, so if similar parts flow continuously, there is a mistake in attaching the parts. The possibility to do. If an attachment error occurs, the member must be replaced, and in the worst case, there is a possibility that the line must be stopped, which increases the manufacturing cost.
[0004]
In order to avoid such a problem, for example, as shown in FIG. 6, the member indicating device 100 is installed in each frame of the member storage shelf 101, and the member whose lamp is lit is taken out of the member indicating device 100, A method of attaching to a product is used. In this method, since the member used for the current flow can be recognized at a glance, the above-described mistake is unlikely to occur. Moreover, the flexible switch 1 is attached to the member indicator 100 as shown in FIG. 6, and the operator takes out the member and touches the flexible switch 1 to turn it on so that the member indicator 100 is provided. A signal indicating that the member has been taken out is generated in the signal control unit. A connection cable 103 is connected to the signal control unit of the member indicating device 100, and this connection cable 103 is connected to the central monitoring unit 102. When the signal control unit receives the member removal signal, the signal control unit blinks the lamp and transmits the member removal signal to the central monitoring unit 102 that monitors the member indicator 100 of the entire member storage shelf 101, and the central monitoring unit 102 transmits this signal. Identify and remove the member that matches the current flow and monitor whether it is attached. In this way, by confirming that the qualified member is attached to the product being flowed on both the operator side and the central monitoring unit 102, occurrence of erroneous attachment of the member is suppressed.
[0005]
The configuration of such a member instruction device 100 will be described with reference to FIG. FIG. 7A is an external perspective view of a conventional member pointing device, and FIG. 7B is an exploded perspective view thereof.
[0006]
As shown in FIGS. 7A and 7B, the member indicating device 100 includes a flexible switch 1, a flexible switch mounting board 11, a flexible switch fixing member 13, a control circuit board 12 corresponding to the signal control unit, and an LED lamp. 3, a connection cable 103, a housing 4, a cover 5, and a clamp 6.
[0007]
The flexible switch 1 is composed of a tact switch and a bar-like flexible unit that is arranged close to the tact switch and turns on the tact switch when the operator touches and operates in the arrow direction shown in FIG. The tact switch 1 a is mounted on the flexible switch mounting substrate 11, and the flexible unit 1 b is fixed to the flexible switch fixing member 13. The flexible switch mounting substrate 11 is fixed to the flexible switch fixing member 13 via a spacer having a predetermined length.
[0008]
The LED lamp 3 is mounted on the control circuit board 12 so that the optical axis direction and the mounting surface of the board are perpendicular to each other. The control circuit board 12 and the flexible switch mounting board 11 are connected by a connection cord 15. Yes. The control circuit board 12 is connected to a connection cable 103 that is connected to the central monitoring device.
[0009]
The control circuit board 12 and the flexible switch fixing member 13 are respectively fixed to the housing 4 and a cover 5 is provided so as to cover them. Here, the mounting surface of the control circuit board 12 is fixed so that the mounting surface is parallel to one surface of the housing 4 which is the back surface when the lamp side surface of the member indicating device is the front surface. On the other hand, the flexible switch mounting substrate 11 and the flexible unit 1b are fixed to face one surface of the flexible switch fixing member 13 that is bent at a substantially right angle in the middle. It is fixedly installed on the back surface (one surface of the housing 4). In this way, the axial direction of the flexible unit 1b (flexible switch 1) is fixed in the vertical direction. In addition, a clamp 6 for being installed on the component storage shelf is attached by welding to the back surface of the housing 4 which is the back surface of the member instruction device, and the member instruction device is fixed to the component storage shelf by this clamp 6. Yes.
[0010]
[Problems to be solved by the invention]
However, such a conventional member indicating device has the following problems to be solved.
[0011]
When the operator takes out the member and touches the flexible unit 1b, a force is applied to the flexible unit 1b in the front-rear and left-right directions (arrow directions in FIG. 7A). If such a force continues to be applied repeatedly, stress continues to be applied to the joint point between the casing 4 and the flexible switch fixing member 13, and the joint strength gradually weakens, resulting in rattling. In the worst case, the flexible switch 1 including the flexible unit 1b is detached from the housing 4 and fails.
[0012]
An object of the present invention is to provide a mechanically reliable member indicating device in which a flexible switch portion does not easily fail even when an external force is applied by an operator.
[0013]
[Means for Solving the Problems]
The present invention relates to a case, a cover that covers the case, a tact switch, a control board and a lamp that are arranged in a storage portion that is covered by the case and the cover, and an operator when taking out components from the storage shelf. And a flexible unit for generating a member take-out signal by pushing a tact switch and projecting a stick disposed therein, and a part of the wall of the housing is partially accommodated It has a flat plate-shaped bent portion that is bent so as to protrude inward, and the flexible unit is bent so that the flat plate surface of the bent portion and the axial direction of the flexible unit are orthogonal to each other. The tact switch is mounted on the control board and fixed to the forming part. The control board is fixed to the folding forming portion with the tact switch installation surface of the control board and the flat plate surface of the bending member parallel to each other so that the rewritable unit is closely spaced. The lamp is mounted on the tact switch mounting surface side of the control board so that the front direction axis of the lamp is parallel to the tact switch mounting surface of the control board . In such a configuration, joint portions due to components such as screws when the flexible switch is fixed to the housing are reduced, and the flexible switch is highly resistant to stress caused by an impact received from an operator.
[0014]
Further, in this configuration, since the electrical components such as a tact switch or a lamp is mounted on one substrate, member pointing device in a simple structure without wasted space in the device is formed.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an external perspective view of a member pointing device according to the present embodiment.
2A is a front view of the member indicating device shown in FIG. 1, and FIG. 2B is a side view thereof.
3 is a partially enlarged view of the member indicating device shown in FIG. 1, wherein (a) is a front sectional view and (b) is a side sectional view.
[0016]
As shown in FIGS. 1, 2, and 3, the member pointing device 100 covers the casing 4 including the control board 12 to which the tact switch 1 a, the lamp 3, and the connection cable 103 are connected, and covers the lamp 4. 3 is provided in the housing 4 in the same manner as the cover 5 provided with a lamp hole 31 in a portion corresponding to 3 and the flexible unit 1b installed in the housing 4 and having one end close to the tact switch 1a. And a clamp 6 for installation on a storage shelf. By assembling the housing 4 and the cover 5, a housing portion for housing the contact points between the tact switch 1 a and the flexible unit 1 b is configured.
[0017]
The control board 12 is fixed to the housing 4 by spacers 16 and screws 14, and a plurality of electronic components including the tact switch 1 a and the LED lamp 3 are mounted on the control board 12. Here, the LED lamp 3 is directly mounted so that the optical axis direction and the mounting surface of the control board 12 are parallel. The control board 12 is connected with a connection cable 103 for transmitting a signal to a central monitoring unit (not shown).
[0018]
The casing 4 is provided with a bending portion 40 that is partially bent at one end toward the storage portion. The flexible unit 1b is connected to the bending portion 40 in the axial direction and the bending portion 40. The fixing portion 1c is deformed so as to be perpendicular to the mounting surface of the lens, and is directly fixed by caulking. Further, the control board 12 is fixed with screws 14 via spacers 16 so that the switch surface (the lower surface in FIG. 3) of the tact switch 1a is positioned close to the end of the flexible unit 1a.
[0019]
Here, when the operator touches the flexible unit 1b, the stick protrudes from the end surface of the flexible unit 1b on the tact switch 1a side, and the operator operates by pressing the tact switch 1a. In this way, the function of the flexible switch 1 is achieved.
[0020]
As shown in FIG. 6, the member indicating device 100 formed in this way is installed so that the axial direction of the flexible unit 1b is substantially vertical.
[0021]
By adopting such a structure, the flexible unit 1 b is directly fixed to the housing 4, so that the flexible switch 1 can be firmly installed on the housing 4. Thereby, the member indicating device provided with the flexible switch that does not easily break down even if the operator frequently touches can be configured.
[0022]
Further, by mounting all electronic components such as tact switches and LED lamps on one control board, unnecessary space in the storage portion can be reduced, and thus the apparatus can be miniaturized.
[0023]
In addition, as in the prior art described above, there is no need to install the casing via the flexible switch fixing member, and the number of fixing points by screws is reduced, so that the mechanism reliability is improved and the workability is improved. In addition, since the number of members is reduced, the cost can be reduced.
[0024]
Further, since the tact switch 1a is directly mounted on the control board 12, it is not necessary to provide a separate board for the flexible switch, and a connection cable for connecting these boards may not be used. As a result, the number of substrates used can be reduced and cable connection work can be omitted, so that the manufacturing cost can be reduced and the reliability of the mechanism can be improved.
[0025]
In addition, the member instruction | indication apparatus shown to this embodiment is attaching to the storage shelf with a clamp, and as shown in FIG. 6, it is attached to the framework between the shelfs which go up and down. For this reason, when taking out a member from the upper shelf, the member 201 may hit the rear head of the housing 4 as shown in FIG. Further, when pulling out the tray 202 itself having no members, an impact is applied to the rear head of the housing 4. When the clamp 6 is attached by welding, if such an impact continues to be applied, the welded part is peeled off, and the housing 4 side of the member indicating device 100 falls and breaks down. For this reason, as shown in FIG. 5A, a convex portion 61 having a predetermined size and a height at which the member 201 and the tray 202 do not hit the back of the main body of the member pointing device 100 is provided on the upper surface of the clamp 6. . As a result, as shown in FIG. 4B, the tray 202 or the member 201 does not hit the rear head of the member indicator 100, and the occurrence of a failure can be prevented.
[0026]
Further, as shown in FIG. 5A, by providing a protrusion 62 with a predetermined width and length at the tip of the clamp 6, and by providing a groove 41 corresponding to the protrusion on the back surface of the housing 4, As shown in FIG.5 (b), the clamp 6 can be joined to the housing | casing 4 (member instruction | indication apparatus 100 main body) by a fitting type. As shown in FIG. 5B, the fitting mechanism may be performed by only one end of the clamp (the other end is screwed), or both ends may be joined using the fitting mechanism. Good. As a result, even if there is a problem that the above-mentioned parts hit the back of the member indicator, it is joined by fitting, so it has a structure that is strong against lateral force, and the joint is not easily destroyed. A member indicating device with high mechanism reliability can be configured.
[0027]
【The invention's effect】
According to the present invention, the number of joints due to parts such as screws when the flexible switch is fixed to the casing is reduced, and the flexible switch is highly resistant to the stress caused by the impact from the operator, and has high mechanism reliability. An indicating device can be configured.
[0028]
Also, electrical components such as a tact switch or a lamp is mounted on a single substrate, it is possible to configure the member indicating device in a simple structure without wasted space in the apparatus, and so that the connections of component cost and the work Therefore, a highly reliable member indicating device in the mechanism and electrical connection can be configured.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a member indicating device according to the present embodiment. FIG. 2 is a front view and a side view of the member indicating device according to the present embodiment. Enlarged view [Fig. 4] Schematic diagram showing a state in which the tray (member) is taken out from the storage shelf. [Fig. 5] Schematic diagram showing a joining method of the member indicating device and the clamp. [Fig. 6] The member indicating device is installed on the storage shelf. FIG. 7 is an external perspective view and an exploded perspective view of a conventional member pointing device.
1-flexible switch 1a-tact switch 1b-flexible unit 1c-fixing portion 3-LED lamp 4-housing 5-cover 6-clamp 12-control board 14-screw 15-connection cord 16-spacer 31-lamp cover 40 -Folding part 41 of the housing 4 -Slot 61 for fitting -Protrusion part 62 of the clamp 6 -Protrusion part 100 of the clamp 6 -Member indicating device 101 -Storage shelf 102 -Central monitoring unit 103 -Connection cable 201 -Member 202-Tray for member 201

Claims (2)

A housing and a cover covering the housing;
A tact switch, a control board, and a lamp, which are arranged in a storage unit covered by the casing and the cover;
A member indicating device comprising: a flexible unit that generates a member removal signal by pushing a tact switch by projecting a bar arranged inside when an operator touches when removing a component from a storage shelf,
Having a flat-plate-shaped bent forming portion formed by bending one wall surface of the housing so as to partially protrude toward the inside of the storage portion;
While fixing the flexible unit directly to the bending portion so that the flat plate surface of the bending portion and the axial direction of the flexible unit are orthogonal,
The tact switch is mounted on the control board,
The tact switch mounting surface of the control board and the bending are arranged so that the tact switch and the flexible unit are closely spaced by a distance at which the tact switch is pushed by the flexible unit due to the protrusion of the rod. The control substrate is fixed to the bent forming portion with the flat plate surface of the member in parallel,
  The member indication device is mounted on the tact switch mounting surface side of the control board so that the front axis of the lamp is parallel to the tact switch mounting surface of the control board. In addition to the surface of the housing facing the cover side, it further comprises a clamp shaped to hold the member indicating device between the member storage shelves,
The member indicating device according to claim 1, wherein the housing is provided with a fitting groove, and a protrusion that fits into the fitting groove is provided at a tip of the clamp.

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