JP5820632B2 - Hardness measuring device - Google Patents

Description

  In the present invention, the measurement object, for example, a viscous material / elastic material, more specifically, oil, fat, cream, whipped cream or the like is dropped on the surface, and the penetration resistance value is measured or the hardness of the measurement object is evaluated from the penetration distance. The invention relates to a cone to be measured and a hardness measuring device.

As an apparatus for measuring the hardness of food or the like, there are a penetrometer described in paragraph 0020 of Patent Document 1 and paragraph 0142 of Patent Document 2. A device called a cone-shaped cone is dropped on the surface of the measurement object separated by a cup or the like, and the penetration distance of the cone into the measurement object is measured to know the hardness of the measurement object.

  However, the measurement of the hardness of the object to be measured by the penetrometer can be measured with high accuracy in a laboratory or the like where the penetrometer is installed, but is expensive and large-scale. Therefore, it is difficult to bring such a penetrometer to a measurement location where the measurement object is located. Furthermore, when the object to be measured changes over time, and there is a distance to the laboratory, the measurement result is completely meaningless, and the hardness of the object to be measured cannot be measured immediately.

JP 2000-129286 A JP 2000-60450 A

  Therefore, the present invention easily measures the penetration resistance value of the measurement object, or evaluates and measures the hardness of the measurement object from the penetration distance, and has a simple structure and can be easily carried to the measurement place and hold the cone. An object of the present invention is to provide a hardness measuring apparatus that drops and has good reproducibility to evaluate and measure the hardness of a measurement object.

In order to solve the above problems, the present invention provides:
( 1 )
A scale indicating the distance from the apex, a hardness measuring apparatus for evaluating the hardness of the measurement target were allowed to fall a plurality cone to be measured, penetration distance of the cone over the circumference on the side surface,
A base part , a shaft part erected on the base part , a cylinder part that is held by the shaft part and has a through-hole vertically formed therein, and the cone part that is provided in the cylinder part is detachably locked in the through-hole. a support comprising a holder for Ru provided with a holding mechanism,
A lot that is detachably locked in the through-hole , and a measuring unit that includes the cone connected to the lot;
A detaching member for detaching the cone from the holding portion;
Consists of
A hardness measuring apparatus , wherein the detachable member is inserted into the through hole, the cone lot is pushed out of the through hole, and the cone is dropped .
( 2 )
The pedestal is provided with a dent recessed in the shape of a cup into which a measurement object has been dispensed, and the apex of the cone is positioned substantially in the center of the cup by placing the cup in contact with the dent. ( 1 ) The hardness measuring apparatus characterized by these.
( 3 )
The cup is cylindrical, and the base portion is a curved portion in which the dent is curved in the shape of a cup, and the base portion is provided with left and right bars respectively screwed to the end portions of the curved portion, and from the center of the curved portion. The hardness measuring apparatus according to ( 2 ), wherein the shaft body is erected on a fixing portion protruding to the side opposite to the cup.
( 4 )
The hardness measuring device according to any one of ( 1 ) to ( 3 ), wherein the holding portion is movable up and down along the shaft portion.
( 5 )
The threads provided on the shaft of the shaft portion, with sandwiching the holding portion by a nut which is screwed to the shaft, characterized in that the said holding part and vertically movable by rotating the nut (4 ) Hardness measuring device.
( 6 )
The holding mechanism is
A cylinder inserted and fixed in a second through-hole connected perpendicularly to the through-hole of the cylinder part ;
A pin inserted movably on the through hole side in the cylinder;
A spring body that presses the pin in the direction of pushing the pin into the through hole;
A stopper that locks the anti- pin side of the spring body into the cylinder;
The hardness measuring apparatus according to any one of (1) to ( 5 ), characterized by comprising:
( 7 )
The hardness measuring apparatus according to any one of ( 1 ) to ( 6 ), wherein the cone is an internal cavity and an upper top member is detachable.

  In the present invention, since the cone is provided with a scale, the operator can easily grasp the penetration distance of the cone dropped on the measurement target. Furthermore, since the hardness measuring device of the present invention can hold and drop the cone with a simple structure, it is excellent in small size and portability. Therefore, it is possible to immediately measure and evaluate the hardness of the measurement object at the place where the measurement object exists, and it is extremely effective for evaluating, grasping and measuring the hardness of the measurement object whose hardness changes.

  In addition, since measurement work and penetration distance can be read easily, it is effective in cases of repeated measurement in a short time and measurement of a large number of samples. Furthermore, due to the simple structure, the equipment cost can be reduced even if a plurality of hardness measuring devices are held in the kitchen.

It is a perspective schematic diagram of the hardness measuring device which is the present invention. It is explanatory drawing of the cone which is this invention. It is explanatory sectional drawing of the holding mechanism of a measurement part. It is explanatory sectional drawing of the desorption mechanism of a measurement part. It is side surface explanatory drawing of the evaluation method of the hardness of the measuring object using this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the hardness measuring device 1 according to the present invention includes a support 2, a measuring unit 8 including a cone 8 a that is detachably locked to the support 2, and a cone is detached and dropped. This is an apparatus that consists of a detachable member 7 and drops the cone 8a onto the surface of the measuring object 10, and evaluates the hardness of the measuring object 10 from the penetration distance of the cone 8a.

  The support body 2 includes a base part 4, a shaft part 5 erected on the base part 4, and a holding part 6 having a holding mechanism 6 d that is held by the shaft part 5 and detachably locks the cone 8 a.

  When the cup 9 (dotted line perspective view) into which the measurement object 10 (one-dot chain line) is dispensed is cylindrical, the pedestal 4 has a curved portion 4c that is curved into a side shape of the cup 9, and an end of the curved portion 4c. It consists of left and right bars 4a and 4b which are in contact with the installation surface and are fixed with screws 4e, respectively, and a fixing portion 4d which protrudes from the center of the curved portion 4c to the side opposite to the cup 9. By using the left and right bars 4a and 4b, they are lightweight, easy to disassemble and clean, and excellent in portability.

  And by arrange | positioning the cup 9 in contact with the curved part 4c, the vertex 8f of the cone 8a will be located in the plane center of the cup 9 substantially. Then, the shaft portion 5 is erected from the fixed portion 4d.

  Here, since the cup 9 into which the measuring object 10 has been dispensed is cylindrical, it has a concave shape in the shape of the curved portion 4c. However, the cup 9 into which the measuring object 10 has been dispensed is provided with a concave indentation. As long as the cup 9 is disposed in contact with the top of the cup 9 so that the apex 8f of the cone 8a is located at substantially the center of the plane of the cup 9, any recess may be used.

  The shaft portion 5 includes a shaft 5a provided with a thread 5b that is inserted and erected in the fixing portion 4d, and a nut 5c and a washer that are screwed to the shaft 5a that fixes the shaft 5a to the fixing portion 4d and sandwiches the fixing portion 4d. 5d, and a nut 5c and a washer 5d that sandwich the holding portion 6. By rotating the nut 5c, the holding portion 6 can be adjusted in the vertical position along the shaft 5a.

  The holding portion 6 includes an overhang portion 6a having one end inserted through the shaft 5a, a cylindrical tube portion 6b in which a through hole 6c connected to the other end of the overhang portion 6a and penetrating vertically is formed, and an inside of the through hole 6c. And a holding mechanism 6d for detachably locking the measuring unit 8.

  As shown in FIGS. 3 and 4, the holding mechanism 6 d includes a cylinder 6 k that is drilled in the cylinder portion 6 b and is inserted and fixed in a second through hole 6 e that is perpendicularly connected to the through hole 6 c, and a through hole 6 c in the cylinder 6 k. There are a pin 6i that is movably inserted to the side, a spring body 6h that presses the pin 6i in a direction to push the pin 6i toward the through hole 6c, and a stopper that locks the anti-pin 6i side of the spring body 6h into the cylinder 6k. It consists of a screw 6g and a nut 6f fixed to the side surface of the cylindrical portion 6b. By fixing the nut 6f to the cylindrical portion, it is not necessary to form a thread in the second through hole 6e, and the processing is extremely easy. Further, a thread may be formed in the second through hole 6e and the cylinder 6k and screwed together, and tightened with a nut 6f.

  As shown in the enlarged cross-sectional view of the holding mechanism 6d in FIG. 3B, the holding mechanism 6d is generally called a spring plunger or the like, and the tip of the pin 6i is curved in an arc shape, and is formed from the hole at the tip of the cylinder 6k. In order not to fall off, the diameter of the pin 6i on the opposite end side is formed thicker than the hole at the end of the tube 6k. The screw 6g, which is a stopper, is screwed into the cylinder 6k with a screw thread, and the position of the screw 6g is adjusted by rotating a tightening hole 6m formed at the end exposed outside the cylinder 6k with a hexagon wrench or the like. The repulsive force of the change spring body 6h can be adjusted.

  Moreover, the diameter of the connection end to the through-hole 6c of the 2nd through-hole 6e is narrowed, and the structure where only the pin 6i presses a lot is desirable. By not projecting the pin 6i into the through hole 6c more than necessary, the detaching operation can be performed smoothly. The holding mechanism is not limited to the structure of the holding mechanism 6d shown here, and various structures such as pressing a sphere with the spring body 6h can be employed. In any case, it is sufficient that the lot 8c can be locked and the lock can be released by some mechanism. In particular, it is desirable that the side in contact with the lot 8c is arcuate for reasons described later. The spring body 6h only needs to be able to apply a spring bias to the pin 6i, such as a coil spring or rubber.

  As shown in FIGS. 1 and 2, the measurement unit 8 includes a lot 8 c (dotted line) that is detachably locked to the holding unit 6 and a cone 8 a that is connected to the lot 8 c.

  As shown in FIGS. 2 and 3, the cone 8a has a conical shape in which a plurality of graduations 8b indicating equal distances from the apex 8f are provided on the side surface 8h over the entire circumference. The scale may be painted as a line or may form a groove.

  In addition to the lot 8c connected to the upper portion of the cone 8a, the inner side (top material 8d) of the second row of circles shown in FIG. 2 can be screwed to the upper portion of the cone 8a 8g to be attached and detached together with the lot 8c. .

  The inside of the cone 8a can be a cavity 8e. By putting the weight in and out of the cavity 8e, the weight of the cone 8a can be adjusted, and the hardness of different measurement objects can be examined with different loads.

The detachable member 7 is a side surface T-shaped member including a wire 7a connected to the holding portion 6, a locking portion 7c connected to the wire 7a, and a rod 7b. The rod 7b is inserted into the through hole 6c and pushes in the lot 8c locked by the holding mechanism 6d to release the lock of the lot 8c by the pin 6i.

Accordingly, the rod 7b needs to have a length enough to pass through the holding mechanism 6d from above the through hole 6c. Moreover, the latching | locking part 7c is a part which connects the wire 7a, and prevents that the stick | rod 7b fits into the through-hole 6c and cannot be taken out. Further, it is desirable that the tip of the rod 7b has a tapered shape in order to smoothly push the pin 6i toward the spring body 6h.

  Next, with reference to FIGS. 3 and 4, the measuring unit 8, that is, the holding mechanism and the detaching mechanism of the cone 8a and the lot 8c will be described. First, as shown in FIG. 3, the lot 8c connected to the cone 8a is inserted into the through hole 6c from the bottom of the cylindrical portion 6b. Then, in the lot 8c, the pin 6i is pushed into the spring body 6h and is positioned above the position of the pin 6i in FIG. Then, the pin 6i is pushed by the spring body 6h, the lot 8c is pushed against the side wall of the through hole 6c, the lot 8c is held between the pin 6i and the side wall of the through hole 6c, and the measuring part 8 is held by the cylinder part 6b. Can do.

  In order to detach the measuring unit 8 from the cylindrical part 6b of the holding unit 6 and drop it, the rod 7b of the detaching member 7 is inserted into the through hole 6c on the upper part of the cylindrical part 6b as shown in FIG. Then, while the lot 8c is pushed down, when it passes through the pin 6i, the pin 6i is not pressed against the wall of the through hole 6c and falls. At this time, the rod 7b is pressed against the wall of the through hole 6c by the pin 6i. Therefore, if the rod 7b is gently pushed into the through-hole 6c from above, resistance will occur in the entry of the rod 7b, the entry speed will slow down, and the lot 8c will not be pushed with an irregular load. Always fall free. Therefore, the error of the drop speed for each measurement and for each worker is extremely low, and the measurement accuracy is increased.

  Next, with reference to FIG. 5, the measuring method of the hardness measuring apparatus which is this invention is demonstrated. The method of dropping the cone 8a onto the measuring object 10 and grasping, evaluating, or measuring the hardness of the measuring object 10 is generally as follows.

  The cone 8a positioned at a predetermined height from the surface of the measuring object 10 is dropped on the surface of the measuring object 10, and after a predetermined time has elapsed, the penetration distance of the cone 8a into the measuring object 10 is measured. FIG. 5 shows a state after a predetermined time has elapsed.

  The operator drops the cone 8a and, after a predetermined time elapses, visually observes the scale 8b on the side surface 8h of the cone 8a located in the vicinity of the surface of the measurement object 10, thereby easily knowing the penetration distance and determining the hardness of the measurement object 10. It can be grasped or evaluated and measured. This is extremely effective when measuring many measurement objects or repeatedly measuring the hardness of measurement objects.

  In addition, using a subject whose hardness (penetration resistance value) has been accurately examined in advance, the penetration distance is examined in the present invention, and a comparison table (standard curve) is created that is compared with the accurate penetration resistance value. This makes it possible to know the hardness of the measurement object more accurately.

DESCRIPTION OF SYMBOLS 1 Hardness measuring apparatus 2 Support body 4 Base part 4a Left bar 4b Right bar 4c Curved part 4d Fixing part 4e Screw 5 Shaft part 5a Shaft 5b Thread 5c Nut 5d Washer 6 Holding part 6a Overhang part 6b Cylindrical part 6c Through-hole 6d Holding mechanism 6e Second through hole 6f Nut 6g Screw 6h Spring body 6i Pin 6k Tube 6m Tightening hole 7 Detachment member 7a Wire 7b Rod 7c Locking part 8 Measuring part 8a Cone 8b Scale 8c Lot 8d Top material 8f Vertex 8e Cavity 8g Screwed 8h Side 9 Cup 9a Handle 10 Measurement object

Claims (7)

A scale indicating the distance from the apex, a hardness measuring apparatus for evaluating the hardness of the measurement target were allowed to fall a plurality cone to be measured, penetration distance of the cone over the circumference on the side surface,
A base part , a shaft part erected on the base part , a cylinder part that is held by the shaft part and has a through-hole vertically formed therein, and the cone part that is provided in the cylinder part is detachably locked in the through-hole. a support comprising a holder for Ru provided with a holding mechanism,
A lot that is detachably locked in the through-hole , and a measuring unit that includes the cone connected to the lot;
A detaching member for detaching the cone from the holding portion;
Consists of
A hardness measuring apparatus , wherein the detachable member is inserted into the through hole, the cone lot is pushed out of the through hole, and the cone is dropped . The pedestal is provided with a dent recessed in the shape of a cup into which a measurement object has been dispensed, and the apex of the cone is positioned substantially in the center of the cup by placing the cup in contact with the dent. The hardness measuring apparatus according to claim 1 . The cup is cylindrical, and the base portion is a curved portion in which the dent is curved in the shape of a cup, and the base portion is provided with left and right bars respectively screwed to the end portions of the curved portion, and from the center of the curved portion. The hardness measuring device according to claim 2 , wherein the shaft body is erected on a fixing portion protruding to the side opposite to the cup. Said holding portion along said shank, hardness measurement apparatus according to any one of claims 1 to 3, characterized in that the vertically movable. The shaft of the shaft portion is provided with a thread, the holding portion is clamped by a nut screwed to the shaft, and the holding portion can be moved up and down by rotating the nut. 4. The hardness measuring apparatus according to 4 . The holding mechanism is
A cylinder inserted and fixed in a second through-hole connected perpendicularly to the through-hole of the cylinder part ;
A pin inserted movably on the through hole side in the cylinder;
A spring body that presses the pin in the direction of pushing the pin into the through hole;
A stopper that locks the anti- pin side of the spring body into the cylinder;
The hardness measuring device according to any one of claims 1 to 5 , wherein the hardness measuring device comprises: The cone is inside the cavity, hardness measurement apparatus according to any one of claims 1 to 6, the upper ceiling material is characterized in that it is removable.

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