JPH0566506U - Tack length size detector - Google Patents

Abstract

(57) [Summary] [Purpose] Only one type of instrument is required to be prepared, and the tack length size determination is not affected by the environment or workers. [Structure] Potentiometer 5 that measures the depth of the tack hole by hooking the hook part of the finger 7 on the tip of the tack hole, and the digital display and display of the tack length based on the signal of the potentiometer 5 and the tack type setting switch 15. It has a grip sensor 12 that can be held.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tack length size determination device.

[0002]

[Prior Art]

 For example, as a rivet length size determining means when two steel plates 01, 01 are stacked and fastened, a grip gauge 04 inserted in a stud hole 03 is conventionally used, for example, as shown in the vertical sectional view of FIG. It is known that the lower end of the hook is hooked on the lower end of the tack hole 03, and the number on the scale portion 05 of the grip gauge 04 at the upper end is read to determine the tack length size.

However, such means have the following drawbacks. (1) Since it is necessary to change the grip gauge 04 depending on the type of tack used, it is necessary to prepare various kinds of grip gauges 04, and therefore instrument management is troublesome. (2) Since the scale portion 05 of the grip gauge 04 is not clear, it is difficult to see it and it may not be possible to see it depending on the environment. Therefore, the accuracy of the stud length size determination may decrease. (3) Since the worker must read the number on the scale portion 05 while holding the grip gauge 04 with one hand, there is a possibility that the reading posture is restricted and a judgment error may occur.

[0004]

[Problems to be solved by the device]

 The present invention has been proposed in view of such circumstances, and only one type of instrument is required to be prepared, and the tack length size determination is not affected by the environment or workers. Therefore, the tack length is excellent in instrument management and accuracy. An object is to provide a size determiner.

[0005]

[Means for Solving the Problems] Therefore, the present invention provides a potentiometer for measuring the depth of the tack hole by hooking a hook portion of a finger at the tip of the tack hole, and a signal of the potentiometer and a tack type setting switch. It is equipped with a grip sensor that is capable of digital display and hold of a tack length based on the above.

[0006]

[Action]

 According to this structure, a tack length hook-shaped digital signal is struck based on the potentiometer that measures the depth of the tack hole by hooking the hook of the finger on the tip of the tack hole and the signal of the potentiometer and the tack type setting switch. Since the grip sensor capable of displaying and holding the display is provided, the following operation is performed. (1) By changing the tack type setting switch, the tack length size can be determined for each tack type, and it is not necessary to prepare multiple types of grip gauges. (2) Just by hooking the lower end of the finger of the potentiometer to the tack hole, the tack size can be determined automatically and specifically, and the influence of the measuring posture of the worker is eliminated. (3) The display panel and display hold function make it possible to determine the tack size at any time regardless of the surrounding environment.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. The same reference numerals as in FIG. 8 denote the same members as those in FIG. 8, and first, in FIG. 1, a perspective view, a partially enlarged view of FIG. , 1, 2 are respectively a relatively large diameter cylindrical potentiometer casing 3, an upper end fixing plate for fixing the relatively small diameter finger support rods 4 in parallel with each other, a lower fixing band, and 5 an upper portion is slidably casing It is a potentiometer that is inserted into the lower part of 3 and has a hole block 6 fixed to the lower end. Numeral 7 is a finger that is coaxially protruded from the lower end of the support rod 4 and can be inserted through the through hole 8 of the hole contact block 6, and has a hook portion formed at the lower end. Numerals 9 and 10 are the upper and lower ends of the potentiometer 5, respectively. The upper central axis and the lower central axis 11 which are coaxially provided so as to project are the compression springs in which the upper central axis 9 is coaxially and loosely inserted in the upper portion of the casing 3. Reference numeral 12 is a grip sensor connected to the potentiometer 5 through a cord 13, reference numerals 14 and 15 are a power switch and a tack type setting switch, respectively, and 16 is a digital liquid crystal display panel with a display hold circuit.

In such a device, in order to determine the tack length from the tack hole depth, as shown in FIG. 1, the casing 3, the support rod 4 and the finger 7 are integrally moved upward by the compression spring 11. A stud length size determiner 17 in which the lower end of the pushed finger 7 is aligned with the lower end surface of the through hole 8 of the hole contact block 6 is provided on the upper surface of the stud hole 03 as shown in the partial vertical sectional view of FIG. The casing 3 and the support rod 4 are pressed against each other to contract the compression spring 11, the finger 7 is inserted into the stud hole 03, and the lower end thereof is hooked on the lower surface of the steel plate 01. Then, as shown in FIG. 1, the depth d of the tack hole 03 is measured by the potentiometer 5, and this signal is input to the grip sensor 12 via the cord 13, and is added in advance by the tack type setting switch 15 here. In cooperation with the 0 adjustment function, the judgment tack size is displayed on the liquid crystal display panel 16 and the displayed value is held. By the way, the liquid crystal display panel 16 is a type of stud MS20470AD for determining the optimum stud length size when integrally fastening three steel plates 01, and in the display of 6 and 20, 6 is a stud of size 6. Is correct and .20 indicates 0.2 / 16 inch thicker. A block diagram and an electric circuit diagram of the grip sensor 12 are shown in FIGS. 5 and 6, respectively. Next, FIG. 7 is a perspective view showing a modified example in which the potentiometer and the grip sensor of FIG. 1 are integrated. According to such a modified example, substantially the same effects as the effects of the above-described embodiment can be obtained. Since the potentiometer 5, grip sensor 12, etc. are completely integrated, there is a feature that handling becomes easier.

According to these devices of the embodiments and modified examples, a potentiometer for measuring the depth of the tack hole by hooking the hook portion of the finger on the tip of the tack hole, and the signal of the potentiometer and the tack type setting. The following effects can be obtained because a grip sensor capable of digital display of a tack length and a display hold is provided based on the switch. (1) By switching the tack type setting switch, it is possible to determine the tack length size for each tack type, and it is not necessary to prepare multiple types of grip gauges, which facilitates instrument management. (2) Just by hooking the lower end of the finger of the potentiometer to the tack hole, the tack size can be determined automatically and specifically, the influence of the measuring posture of the worker is eliminated, and the determination accuracy is improved accordingly. (3) With the liquid crystal display panel and the display hold function, the rivet length size can be determined at any time regardless of the surrounding environment, thus improving the determination efficiency. (4) The present invention can also be applied to the case of determining the bolt length size from the bolt hole.

[0010]

[Effect of the device]

 In short, according to the present invention, a digital display of a tack length is provided based on a potentiometer for measuring the depth of the tack hole by hooking the hook portion of the finger on the tip of the tack hole, and the signal of the potentiometer and the tack type setting switch. Also, since it has a grip sensor that can hold the display, only one type of instrument needs to be prepared, and the tack length size determination is not affected by the environment or workers. Therefore, the tack length size determination is excellent in instrument management and accuracy. The present invention is extremely useful industrially because it has the advantages of being equipped with a container.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a II portion of FIG.

FIG. 3 is a vertical cross-sectional view showing a portion III in FIG.

FIG. 4 is a partially enlarged vertical cross-sectional view showing how to use the finger 7 of FIG.

5 is a block diagram of the grip sensor 12 of FIG. 1. FIG.

FIG. 6 is a wiring diagram of the grip sensor 12 of FIG.

FIG. 7 is a perspective view showing a modified example of FIG.

FIG. 8 is a vertical sectional view showing a known tack length size determiner.

[Explanation of symbols]

 1 Upper end fixing plate 2 Lower fixing band 3 Casing 4 Support rod 5 Potentiometer 6 Hole contact block 7 Finger 8 Through hole 9 Upper central shaft 10 Lower central shaft 11 Compression spring 12 Grip sensor 13 Code 14 Power switch 15 Tack type setting switch 16 Liquid crystal Display panel 17 Tack length size determiner 18 Tack length size determiner 01 Steel plate 03 Tack hole d Depth

Claims (1)

[Scope of utility model registration request] 1. A potentiometer for measuring the depth of the tack hole by hooking a hook of a finger to the tip of the tack hole, and a digital display and display of the tack size based on the signal of the potentiometer and the tack type setting switch. A stud length size detector characterized by a grip sensor that can be held.