JPH0816948B2 - Opening mechanism of money storage drawer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a mechanism for opening a money storage drawer such as a POS terminal or a cash register, and a mechanism for easily adjusting the opening amount of the drawer. Is.

<Prior art> POS terminals and cash register drawers of cash register machines are locked by a latch when the drawer is pushed in,
When the latch is released by a push button operation or the like, the drawer is pulled out by the spring biasing force that biases the drawer forward. As a spring for urging the drawer, a coil spring 3 having one end fixed to a bracket 5 fixed to the frame 1 is usually used as shown in FIG. 7, and when the drawer 2 is pushed in, the spring is in the middle of pushing. The rear surface 29 of the drawer 2 contacts the tip 30 of the drawer 3, and when the drawer 2 is further pushed in thereafter, the spring 3 is compressed and the drawer opening force is stored in the spring 3.

<< Problems to be Solved by the Invention >> In a device generally used in the past, when the latch that holds the drawer in a closed state is released, the drawer 2 is vigorously pulled out to be in a fully opened state. Normally, this allows the drawer 2 to be opened and closed promptly, but when the operator is a pregnant woman, for example, there are cases where it is desired to limit the drawer withdrawal amount in order to prevent the drawer from colliding with the abdomen. . In addition, since high-value banknotes are usually stored in the inner part of the drawer, there are cases in which it is desired to limit the drawer amount in order to prevent the high-value banknotes from being exposed to the eyes. The conventional drawer cannot easily adjust the pull-out amount in such a case. Then, this invention makes it a subject to obtain the POS terminal or the cash register which can adjust the drawer amount freely by a simple structure.

<< Means for Solving the Problems >> The first structure of the present invention for solving the above problems is
A bracket 5 movably supported by the main body frame 1 in the drawer insertion / removal direction, a screw 8 in the drawer insertion / extraction direction supported by the main body frame 1 immovably in the axial direction and screwed into the bracket 5, and a rear surface 7 of the main body frame. The drawer 8 is provided with a screw 8 and a knob 9 which are integral with each other, and the rear end of the drawer opening spring 3 is fixed to the bracket 5. The second structure is a structure in which the middle part of the spring 3 is locked by the insertion metal fitting 20 and the pressing metal fitting 23 that traverse the middle part of the coil spring 3 whose back end is fixed at a fixed position. This is a structure in which the biasing force is adjusted by changing or rotating the coil spring 3. The third structure includes a through hole 24 having an engaging portion 26 provided on the back surface 7 of the main body frame, and a support block 27 having an engaging body 28 that can be engaged with and disengaged from the engaging portion 26. Frame 1
The drawer opening spring 3 is fixed to the support block 27 that can be engaged and disengaged, and the support block 27 is removed and the spring 3 is replaced if necessary, whereby the drawer force of the drawer 2 is adjusted.

<< Operation >> In the first structure, by rotating the knob 9, the compression amount of the spring 3 changes when the bracket 5 moves and the drawer 2 is pushed in, and the withdrawal amount of the drawer 2 changes. . The amount of pull-out can be adjusted by a simple operation of rotating the knob 9 protruding on the back surface of the body frame. In the second structure, the metal fittings
The urging force applied to the drawer 2 is determined by the spring length between the 20 and the holding metal fitting 23 and the drawer 2. On the other hand, by changing the inserting position of the inserting metal fitting 20 and turning the coil spring 3, these members 20, 23 are Since the engagement position between the coil spring 3 and the coil spring 3 changes, the urging force of the drawer 2 by the spring 3 changes.
When using the insertion fitting 20, the insertion fitting 20 is inserted at the same position when the insertion fitting 20 is inserted with the drawer 2 pushed in and when the insertion fitting 20 is inserted with the drawer 2 opened. However, since the engagement position with the spring 3 is different, for example, when three insertion positions of the insertion fitting 20 are provided, the drawer force of the drawer 2 can be adjusted in six stages. Further, in the third structure, a plurality of types of springs having different biasing forces are prepared, the support block 27 is removed, the spring 3 is replaced, and the spring 3 is reattached, whereby the drawer amount of the drawer 2 is changed.

Even in the second and third structures, the spring 3
The drawer amount can be freely adjusted by simple operations such as inserting and removing metal fittings in and from the back of the body frame and operating the knob 9 and the support block 27.

<< Embodiment >> FIGS. 1 and 2 show a first embodiment of the present invention, in which 1 is a main body frame, 2 is a drawer, and 3 is a drawer opening spring. In the first embodiment shown in FIGS. 1 and 2, the rear end of the spring 3 is fixed to a bracket 5 guided by a guide 4 so as to be movable in the drawer insertion / removal direction. The tip of a screw 8 rotatably supported by 7 is screwed into the bracket 5, and a knob 9 for rotating the screw projects from the inner surface 7 of the body frame. In this embodiment, by rotating the knob 9, the bracket 5 is moved in the insertion / removal direction of the drawer 2 by the screw action, and the biasing force applied to the drawer 2 by the spring 3 is adjusted. In FIG. 1, 10 is a POS terminal body, 11 is a keyboard, 12 is a display device, and 13 is a display device.
Is a rubber leg.

The second embodiment shown in FIGS. 3 and 4 is the frame 1
The rear end of the drawer opening spring 3 is fixed to the bracket 5 fixed to the above, and a plurality of through holes 18 are provided in the bottom plate of the main body frame 1 along the extending direction of the spring 3. A fitting 20 having a pin 19 as shown in FIG. 4 is inserted into this through hole.
When the insertion fitting 20 is inserted into the through hole 18, the pin 19 of the insertion fitting 20 is inserted between the spirals of the spring 3 to prevent the wire of the spring 3 from moving in the portion. Therefore, the spring 3 can be expanded and contracted only between the drawer 2 and the insertion fitting 20, and the biasing force applied to the drawer 2 by the spring 3 can be changed by changing the insertion position of the insertion fitting 20.

In the third embodiment shown in FIG. 5, the main body frame 1
The back end of the coil spring 3 is fixed to the tip of a rod 22 which is rotatably supported by a back surface 7 of the body and a bracket 5 fixed to a fixed position of the main body frame 1, and a knob is attached to the other end of the rod 22. 9 is fixed, and the knob 9 projects from the back surface 7 of the main body frame 1. A rod-shaped pressing metal fitting 23 is fixedly provided on the main body frame 1 so as to pass between the spirals of the coil spring 3 thus mounted. In this structure, when the knob 9 is rotated, the coil spring 3 is rotated around the axis, and the spiral of the coil spring 3 and the holding metal fitting 23 are engaged with each other to move the coil spring 3 forward and backward in the axial direction. Since the coil spring 3 is compressed between the pressing member 23 and the drawer 2, the biasing force applied to the drawer 2 by the spring 3 can be changed by rotating the knob 9.

In the fourth embodiment shown in FIG. 6, the body frame 1
A through hole 24 having a diameter larger than the diameter of the spring 3 is provided on the inner surface 7 of the inner peripheral surface 7, and a circumferential groove 26 having a notch 25 opening to the outside is formed around the through hole 24. Meanwhile, drawer opening spring 3
The rear end is fixed to a cylindrical support block 27 fitted in the through hole 24, and the support block 27 has an engagement pin 28 protruding to the outer periphery. The drawer opening spring 3 is inserted into the body frame through the through hole 24, the support block 27 is passed through the through hole 24, and the engaging pin 28 is inserted through the notch 25 into the circumferential groove 26 to make the support block 27 1/4. By rotating and rotating, the engagement pin 2
The support block 27 is fixed by engaging 8 with the circumferential groove 26.
By mounting the drawer opening spring 3 in this way, the spring 3 can be easily removed together with the support block 27 by pulling the engaging pin 28 and the notch 25 of the circumferential groove in alignment with each other. Then, a plurality of types of springs are prepared, the spring 3 is exchanged with another one having a different biasing force, and the spring 3 is mounted again to change the opening force of the drawer 2 given by the spring 3.

<< Advantages of the Invention >> According to the structure of the present invention described above, the withdrawal speed and the withdrawal amount of the money storage drawer of the POS terminal or the cash register can be freely adjusted, so that, for example, the drawer is pulled out vigorously. When it is desired to avoid pulling the drawer or the drawer as a whole, it is possible to adjust the pull-out amount with a simple operation.

[Brief description of drawings]

FIG. 1 is a POS showing in cross section the essential parts of a first embodiment of the present invention.
Fig. 2 is a schematic side view of the terminal, Fig. 2 is a perspective view of the essential parts of the first embodiment, Fig. 3 is a perspective view of the essential parts of the second embodiment, and Fig. 4 is the plug-in fitting of the second embodiment. The front view shown in FIG. 5, FIG. 5 is a partial sectional view showing an essential part of the third embodiment, and FIG. 6 is a perspective view showing an essential part of the fourth embodiment. FIG. 7 is a sectional side view schematically showing a conventional structure. In the figure, 1 is a main body frame, 2 is a drawer, 3 is a drawer opening spring, 5 is a bracket, 8 is a screw, 9 is a knob, 18 is a through hole, 19 is a pin, 20 is a metal fitting, 23 is a metal fitting, 24 Is a through hole, 26 is a circumferential groove, 27 is a support block, and 28 is an engagement pin.

Claims (3)

[Claims] 1. A coin storage drawer opening mechanism in which the spring force of a drawer opening spring (3) for urging the coin storage drawer (2) in the opening direction can be adjusted. A bracket (5) movably supported in the direction, a screw (8) in the drawer insertion direction that is axially immovably supported by the body frame (1) and engages with the bracket, and a rear surface of the body frame ( 7)
An opening of a money storage drawer, characterized in that the drawer (9) is provided with the screw projecting to the rear of the drawer, and the rear end of the drawer opening spring (3) is fixed to the bracket (5). mechanism. 2. An opening mechanism of a money storage drawer in which the spring force of a drawer opening spring (3) for urging the money storage drawer (2) in the opening direction can be adjusted. Metal fittings (20) and (23) each composed of a compression coil spring whose end is fixed at a fixed position and traversing an intermediate portion of the spring, and a displacement means (9) for varying the engagement position between the metal fitting and the coil spring, (18) An opening mechanism for the money storage drawer, which is provided with. 3. A coin storage drawer opening mechanism in which the spring force of a drawer opening spring (3) for urging the coin storage drawer (2) in the opening direction can be adjusted. A through hole (24) having an engaging portion (26) provided on the upper end and a support block (27) having an engaging body (28) which can be engaged and disengaged with the engaging portion. ) Is fixed to the support block (27), the opening mechanism of the money storage drawer.