JP7160275B2 - tablet crusher - Google Patents

Description

TECHNICAL FIELD The present invention relates to a tablet crusher for crushing tablets into powder, and more particularly to a tablet crusher for crushing tablets so that even patients who cannot take tablets as they are can take them.
More specifically, regarding safety measures for those who use tablet crushers

A tablet crusher (see, for example, Patent Document 1) includes a main body section containing an electric drive member, a crushing mechanism section holding a blade-like member so as to be rotatable, and a container section capable of accommodating tablets to be crushed. When a tablet is put into the container part with the opening facing upward, and then the crushing mechanism part is mounted thereon, the opening is closed and the tablet is enclosed together with the blade-shaped member. When they are turned upside down, the tablets in the container part fall onto the blade member, and when they are then mounted on the main body part in an inverted position, the drive member and the blade member engage. It is designed to

Then, when the driving member is operated in this state, the blade-shaped member is rotated to crush the tablets one after another. After the driving member has stopped due to the lapse of a predetermined time or manual operation, etc., the state of pulverization is confirmed by looking inside the transparent portion of the container, and then the operations are performed in the reverse order.
That is, the crushing mechanism is removed from the main body, the crushing mechanism and the container are turned upside down to collect the powdered original tablets on the inner bottom of the container, and then the crushing mechanism is removed from the container to form a unit. The powdered original tablets are transferred from the container portion to an appropriate carrier or the like.

In the case of such a tablet crusher, the container part has no movable member, the crushing mechanism part has a movable member called a blade-shaped member, but it does not have a driving member for operating it, and both the container part and the crushing mechanism part are electrically powered. In addition, it is used in such a way that the container part and the crushing mechanism are connected before the blade member is driven to rotate, and the blade member is sealed inside. Since it is assumed that experts such as A relatively simple method is adopted in which transmission and reception of light are selectively performed according to the attachment and detachment of the lens, and whether or not the turning drive is possible is controlled according to the presence or absence of light reception.

JP 2004-290795 A

However, as awareness of safety regarding a wide range of items such as equipment to be used is increasing, awareness of safety regarding tablet crushers is also increasing. In addition, the use of tablet crushers is increasing with the aging of the population, and it is conceivable that tablet crushers are used for home and personal use.
Therefore, it has become a subject of study to improve the safety during use of the tablet crusher. Specifically, in addition to the current first condition that the crushing mechanism has been attached to the main body, a new second condition that the container has been attached to the crushing mechanism will also be added to the blade member. It is desirable to incorporate it into the starting requirements of the drive.

However, we want to keep costs down even if we strengthen safety functions, so we decided to continue using materials and methods that have a proven track record in procurement, stockpiling, production systems, and ensuring safety. It is conceivable to apply the so-called transmission/reception enable/disable cooperation method, which is control of whether or not turning driving is possible by cooperation with the optical path advance/retreat member of the unit, to the crushing mechanism portion and the container portion.
However, since electricity is not supplied to the pulverization mechanism and the container, which are frequently washed with water, it is not possible to simply adopt the transmission/reception enable/disable cooperation method described above. Moreover, simply increasing the number of locations to which the transmission/reception enable/disable cooperation method is applied to two locations doubles the cost of the applicable portions.
Therefore, it is a technical problem to easily realize a tablet crusher in which attachment of the container to the crushing mechanism is included in the starting requirements for driving the blade member by using the transmission/reception enable/disable cooperation system of the main body.

The tablet crusher of the present invention (solution 1) was invented to solve such problems,
A main body part containing an electric driving member and equipped with a light transmitting/receiving member, and an optical path advancing/retracting member that rotatably holds a blade-like member and has a light shielding part are provided, and are detachable from the main body part. When attached to the main body, the blade member is driven by the driving member and the optical path advance/retreat member faces the optical path of the light transmitting/receiving member; A container part whose opening can be attached to and detached from the crushing mechanism part, and a safety means incorporated in the main body part for enabling the operation of the driving member when the light transmitting/receiving member is shielded, but suppressing the operation when the light is received. In a tablet crusher equipped with
The optical path advance/retreat member is movably attached to the crushing mechanism, and when the container is attached to the crushing mechanism, the light shielding portion is urged toward the light shielding position of the light path. and when the container is removed from the crushing mechanism, the light shielding portion is urged in a direction away from the light shielding position.

In addition, the tablet crusher of the present invention (solution 2) was invented to solve the above technical problems to a high degree,
A main body portion that incorporates an electric driving member and is equipped with a light transmitting/receiving member, and a blade-shaped member that is rotatably held and that is equipped with an optical path advance/retreat member that is detachable from and attached to the main body portion. Then, the blade member is driven by the driving member and the optical path advance/retreat member faces the optical path of the light transmitting/receiving member. A tablet crusher comprising a container part that can be attached to and detached from a crushing mechanism part, and a safety means that is incorporated in the main body part and selects whether or not to operate the driving member according to the light receiving state of the light transmitting and receiving member. in
The optical path advance/retreat member has a light reflecting portion and is mounted in a movable state with respect to the crushing mechanism portion. When the container part is removed from the crushing mechanism part, the light reflecting part makes the light transmitting/receiving member unable to transmit and receive light. and the safety means enables the operation of the driving member when receiving light from the transmitting and receiving member, but inhibits it otherwise. .

Furthermore, the tablet crusher of the present invention (solution 3) is the tablet crusher of the above solutions 1 and 2,
The attachment of the container to the crushing mechanism includes fitting the opening into the crushing mechanism and then fixing the container in a state accompanied by axial rotation of the crushing mechanism,
The optical path advance/retreat member is urged along with the insertion, and is also urged by an elastic member that urges against the insertion.

In such a tablet crusher of the present invention (Solution 1), while continuing to use the combination of the light transmitting/receiving member and the light shielding member (the light shielding portion of the optical path advance/retreat member) that has been used repeatedly, After remodeling so that the position of the light shielding member in the mechanism part changes according to the attachment/detachment state of the container part, if the container part is not attached to the crushing mechanism part, the light shielding member will not be visible even if the crushing mechanism part is attached to the main body part. By not going to a place that serves as a light shield, in addition to the mounting of the crushing mechanism on the main body, the mounting of the container on the crushing mechanism is incorporated into the requirements for starting the drive of the blade members.
Therefore, according to the present invention, it is possible to easily realize a tablet crusher in which attachment of the container to the crushing mechanism is included in the starting requirements for driving the blade member by utilizing the transmission/reception enable/disable cooperation system of the main body. can.

Further, in the tablet crusher of the present invention (Solution 2), while the combination of the light transmitting/receiving member and the optical path advancing/retreating member, which has been used repeatedly, is continuously used, the optical path advancing/retreating member is provided with a light reflecting portion. The container is attached to the crushing mechanism after modification so that the position of the light path advance/retreat member in the crushing mechanism and thus the position of the light reflecting part can be changed according to the attachment/detachment state of the container. Otherwise, even if the crushing mechanism is attached to the main body, the light reflecting part of the optical path advance/retreat member does not go to the place where the light reflection is performed. Attachment of the container to the crushing mechanism is also included in the requirements for starting the drive of the blade members.
Moreover, in the event of failure of the light transmitting/receiving member or the optical path advancing/retracting member, the operation of the driving member is suppressed regardless of whether or not the crushing mechanism or the container is attached. Therefore, safety is further enhanced.
Therefore, according to the present invention, a tablet crusher in which the attachment of the container to the crushing mechanism is included in the requirements for starting the drive of the blade member, and which is also excellent in safety, is provided in the main body of the tablet crusher. It can be easily realized by using.

Furthermore, in the tablet crusher of the present invention (Solution 3), in one direction of the urging of the optical path advance/retreat member, the necessary urging is carried out along with the insertion. It is sufficient to equip the elastic member for force in the other direction against insertion of the force associated with the optical path advance/retreat member. Therefore, the number of elastic members for biasing can be reduced, so that the increase in cost for implementing the biasing function can be kept to a minimum.

1 is a vertical cross-sectional view showing the structure of a tablet crusher in Example 1 of the present invention, where (a) shows a connected state and (b) shows a state where a container section is separated. BRIEF DESCRIPTION OF THE DRAWINGS It is an external perspective view which shows the structure of a tablet crusher about Example 1 of this invention, (a) shows a connection state, (b) has shown the isolation|separation state. 1(a) to 1(e) are external perspective views showing the mode of use of a tablet crusher in Example 1 of the present invention. FIG. 1A and 1B are a plan view and a front view showing changes in the operating state of a light transmitting/receiving member caused by an optical path advance/retreat member in Example 1 of the present invention; FIGS. 8A and 8B are a plan view and a front view showing changes in the operating state of the light transmitting/receiving member caused by the optical path advance/retreat member in Example 2 of the present invention; FIGS.

Concrete forms for carrying out such a tablet crusher of the present invention will be described in Examples 1 and 2 below.
The first embodiment shown in FIGS. 1 to 4 embodies the above-described solutions 1 and 3 (claims 1 and 3 at the time of filing), and the second embodiment shown in FIG. Means 2 and 3 (claims 2 and 3 as originally filed) are embodied.

A specific configuration of Example 1 of the tablet crusher of the present invention will be described with reference to the drawings.
FIG. 1(a) is a vertical cross-sectional view of the tablet crusher 10 with all 20, 30 and 40 connected, and FIG. 1 is a vertical cross-sectional view of the tablet crusher 10 in a state in which the are connected.

FIG. 2(a) is an external perspective view of the tablet crusher 10 with all 20, 30 and 40 connected, and FIG. 2(b) is a tablet crusher with each part 20, 30 and 40 separated. 2 is an external perspective view of the machine 10. FIG.
The tablet crusher 10 comprises three parts, a container part 20, a crushing mechanism part 30, and a main body part 40, which can be connected and separated (Figs. 1(a), 2(a), and 2(b). )), the container portion 20 can be attached to and detached from the crushing mechanism portion 30 and the crushing mechanism portion 30 can be attached to and detached from the main body portion 40 .

The container part 20 (see FIGS. 1 and 2) is a container mainly composed of a cup-shaped bowl part 21, and an opening part 22 at one end is used for putting tablets to be crushed and taking out crushed tablets. A plurality of projecting portions 23 functioning as fitting state fixing means on the container portion 20 side are formed, for example, two in the illustrated example (see FIG. 2(b)). The opening part 22 can be attached to and detached from the crushing mechanism part 30 . All or part of the bowl portion 21 is transparent or translucent so that it is easy to visually confirm the crushed state of the tablet.

The crushing mechanism 30 is mainly composed of a substantially cylindrical cylindrical portion 31 and a central plate portion 32 inside thereof (see FIG. 1). A plurality of blade-like members 33 are attached to one end of the rotating shaft located at , and an engaging transmission portion 36 is attached to the other end of the rotating shaft. When transmitted, the force is transmitted to the blade-shaped member 33 via the rotating shaft, and the blade-shaped member 33 rotates within the cylindrical portion 31 . In order to improve the crushing performance, a plurality of blade members 33 are provided, some extending obliquely downward and others extending obliquely upward (see FIGS. 1 and 2(b)).

The pulverization mechanism 30 includes a tension spring 34 as an urging elastic member, and an optical path retracting member 35 at least partially (in the example of FIG. 1, the lower end facing the optical path of the light transmitting/receiving member 46) has a light shielding property. is also equipped. All of the optical path advance/retreat member 35 and most of the tension spring 34 are attached to the cylinder portion 31 and the central plate portion 32 in a state in which they can reciprocate within a limited range in the cylinder axis direction. Moreover, in the attachment/detachment portion of the opening 22 of the cylindrical portion 31 (see the inside of the upper end portion in FIG. 2(b)), an inner claw portion 37 functioning as fitting state fixing means on the crushing mechanism portion 30 side is provided as described above. The same number of protrusions 23 are formed. Therefore, after the opening 22 is fitted into the opening end of the crushing mechanism 30 in a state in which the projecting part 23 and the inner claw part 37 do not interfere with each other, the container part 20 and the crushing mechanism 30 are axially rotated relative to each other. Then, the back side of the inner claw portion 37 and the bowl portion 21 side of the projecting portion 23 interfere with each other, and the container portion 20 is fixed to the crushing mechanism portion 30 .

When the container 20 is not attached to the crushing mechanism 30 (see the solid lines in FIGS. 1(b) and 2(b)), the tension spring 34 biases the light path advancing/retreating member 35 to the crushing mechanism. It is moved to the mounting side of the container part 20 in the part 30 . On the other hand, when the container part 20 is attached to the crushing mechanism part 30 as described above (see the solid line display in FIG. 1A and the broken line display in FIG. 2B), the container part 20 The optical path advance/retreat member 35 is strongly pushed by the tension spring 34 to move to the attachment side of the main body portion 40 in the crushing mechanism portion 30 .
Furthermore, the pulverizing mechanism section 30 is detachable from the main body section 40 , and an outer claw section 38 is formed at the other end of the cylindrical section 31 for maintaining the attached state.

The main body 40 (see FIGS. 1 and 2) includes a housing 41 that is one size larger than the crushing mechanism 30, an operation unit 42 mounted on the side surface of the housing, and a ring that occupies the peripheral portion of the upper surface of the housing 41. A plate-shaped upper edge 43, cutouts 43a and 43b formed in the inner peripheral portion of the upper edge 43, a thin columnar guide member 44 erected inside the upper edge 43, and the upper edge 43. a transmission/reception member 46 housed inside the upper edge 43 and arranged near the notch 43b; A power supply unit 48 incorporated in the lower part of the housing 41 , and an electric motor 49 as a driving member disposed in the center of the housing 41 .

The operation portion 42 is provided with a button switch or the like for instructing the start or stop of operation, and the central portion of the upper edge portion 43 is punched out for fitting the end portion of the crushing mechanism portion 30. The guide member 44 regulates the movement of the crushing mechanism 30 so that the notch 43a passes through the outer claw portion 38 and the notch 43b passes through the optical path advancing/retreating member 35, so that the crushing mechanism 30 smoothly moves relative to the main body 40. After being mounted, the crushing mechanism section 30 and the main body section 40 are fixed in an appropriate state by relatively rotating the shaft. When the crushing mechanism 30 is attached to the main body 40 in this way, the engagement transmission part 45 and the engagement transmission part 36 are engaged, and the rotational driving force of the electric motor 49 is applied to the blade member 33. It is designed to be transmitted as a turning driving force to.

The light transmitting/receiving member 46 is easy to use as a combination of a light transmitting section and a light receiving section, but it is not limited to such an integrated body. If there is nothing to block the light, the light sent from the light transmitting unit reaches the light receiving unit and is received.
Such a light transmitting/receiving member 46 is mounted inside the upper edge portion 43 of the housing 41 or the like. The internal position is such that when the crushing mechanism 30 is attached to the main body 40, the light shielding portion of the optical path advance/retreat member 35 (the lower end portion in FIG. 1, the portion protruding from the cylindrical portion 31 in FIG. 2B) is He will be made where he is.

The state in which the optical path advance/retreat member 35 faces the optical path of the light transmitting/receiving member 46 in this manner is combined with the above-described energizing state of the optical path advance/retreat member 35 accompanying attachment/detachment of the container portion 20 to/from the crushing mechanism portion 30 . When the container portion 20 is fitted into the crushing mechanism portion 30 and attached, the light shielding portion of the optical path advancing/retreating member 35 moves along with the insertion of the optical path advancing/retreating member 35 into the optical path of the light transmitting/receiving member 46 . It is designed to be biased toward the light shielding position. When the container 20 is removed from the pulverization mechanism 30, the tension spring 34, which is an elastic member, urges the light path advancing/retreating member 35 in a direction against the fitting. Also, the portion is urged in a direction away from the light shielding position of the optical path of the light transmitting/receiving member 46 .

The control unit 47 is supplied with electric power from the power supply unit 48 to operate. During operation, the control unit 47 supplies electric power to the light transmitting/receiving member 46 and the electric motor 49 to control the light receiving level and the like according to the light receiving state from the light transmitting/receiving member 46 . , and controls such as starting and stopping the operation of the electric motor 49 according to the operation of the operation unit 42 .
The control unit 47 also serves as safety means for limiting the operation of the electric motor 49, which is a driving member, to a safe time. Specifically, when the light transmitting/receiving member 46 cannot receive light, the electric motor 49 is operated in accordance with the operation of the operation unit 42. The electric motor 49 is prevented from operating.

The manner of use and general operation of the tablet crusher 10 of Example 1 will be described with reference to the drawings. 3A to 3E are external perspective views.

The method of using the tablet crusher 10 may be the same as the conventional one, so to briefly describe it, first (see FIG. 3(a)), hold the container part 20 in your hand, turn the opening part 22 upward, and then move the posture. An appropriate amount of tablets 5 is put into the container part 20 of .
Then, (see FIG. 3B), the crushing mechanism 30 is brought with the optical path advance/retreat member 35 and the outer claw portion 38 facing upward and the inner claw portion 37 facing downward.
Then (see FIG. 3(c)), the container portion 20 and the crushing mechanism portion 30 are aligned so that the opening portion 22 and the inner claw portion 37 do not interfere with each other, and then the opening portion 22 is fitted into the crushing mechanism portion 30. , and when they are sufficiently fitted, the both 20 and 30 are relatively axially rotated to stabilize the mounted state.

Then, the optical path advance/retreat member 35 moves in the crushing mechanism section 30 according to the fitting operation at that time. Specifically, before mating, it was positioned at the "light shielding position" a little closer to the center (the lower part in the notch in FIG. 3(b)), but after mating it was out of that "light shielding position". It is located near the edge (in FIG. 3(c), the upper part in the notch).
In addition, since the opening of the container part 20 is closed by the crushing mechanism part 30 and the tablet 5 is enclosed together with the blade member 33, how to change the attitudes of the [container part 20 and the crushing mechanism part 30]? There is no possibility that the tablets 5 will spill even if the

Therefore, they [20 and 30] are turned upside down (see FIG. 3(d)). As a result, the tablets 5 are collected at the blade-like member 33 which is below the container portion 20 .
Then, after aligning the outer claw portion 38 and the optical path advance/retreat member 35 with the cutouts 43a and 43b so as not to interfere with the upper edge portion 43, one of the two ends of the crushing mechanism portion 30 where the container portion 20 is not connected is adjusted. The end (lower end in FIG. 3(d)) is fitted into the upper end of the main body 40 (see FIG. 3(e)). Further, the connected state is fixed by locking by relative shaft rotation or the like. Then, the engagement transmission portion 36 and the engagement transmission portion 45 are engaged with each other along with the fitting operation, so that the electric motor 49 can drive the turning of the blade member 33 .

In this state, when the electric motor 49 is operated by operating the operating portion 42, the blade member 33 is rotated and the tablets 5 in the container portion 20 are crushed one after another. Then, after a predetermined period of time has elapsed or after the driving member is stopped according to manual operation or the like, the inside of the container portion 20 is viewed through the transparent portion to confirm the crushing state of the tablets 5, and if the crushing is insufficient, the crushing operation is added. , if pulverization is sufficient, remove the pulverizing mechanism 30 from the main body 40, turn the pulverizing mechanism 30 and the container 20 upside down, and collect the powdered original tablets on the inner bottom of the container 20; Then, the crushing mechanism section 30 is removed from the container section 20, and the powdered original tablets are transferred from the unitized container section 20 to an appropriate carrier or the like.

Concerning the tablet crusher 10 of the first embodiment, the constituent parts and operations particularly related to ensuring safety will be described with reference to the drawings.

4(a) and 4(b) are both a plan view and a front view of the optical path advance/retreat member 35 and the light transmitting/receiving member 46 with the crushing mechanism 30 attached to the main body 40. FIG. (a) shows a state in which the light blocking portion 35a of the optical path advancing/retracting member 35 enters the optical path of the light transmitting/receiving member 46, and (b) shows a state in which the light blocking portion 35a of the optical path advancing/retreating member 35 is separated from the optical path of the light transmitting/receiving member 46. It shows the exit status.

The above-described light transmitting/receiving member 46 is composed of a light transmitting portion 46a and a light receiving portion 46b which form a pair. A straight line connecting with the light receiving portion 46b forms an optical path, and in many cases, an integral commercial product can be used.
Further, the end portion of the optical path advance/retreat member 35 that is exposed from the cylindrical portion 31 serves as a light blocking portion 35a that does not transmit light. The other portion, which may be light-shielding or light-transmitting, responds to the attachment/detachment state of the container portion 20 with respect to the crushing mechanism portion 30, and transmits the response to the light-shielding portion 35a. there is

Therefore, when the crushing mechanism portion 30 is attached to the main body portion 40, if the container portion 20 is attached to the crushing mechanism portion 30, the light blocking portion 35a is positioned between the light transmitting portion 46a and the light receiving portion 46b. (See FIG. 4(a)), the light blocking portion 35a enters the optical path from the light transmitting portion 46a to the light receiving portion 46b, and the light is blocked there (see the arrowed dashed line in the figure). Light reception is interrupted. Then, the safety control of the control unit 47 to which the light shielding state is input as a signal confirms the positive side of the safety state, and drive control of the electric motor 49 is performed according to the operation of the operation unit 42 .

On the other hand, when the crushing mechanism 30 is not attached to the main body 40, or when the crushing mechanism 30 is attached to the main body 40 but the container 20 is not attached to the crushing mechanism 30, the light is blocked. The light blocking portion 35a does not reach between the portion 35a and the light transmitting portion 46a (see FIG. 4B), and the light blocking portion 35a is out of the optical path from the light transmitting portion 46a to the light receiving portion 46b. Since this is not performed (see the one-dot chain line with an arrow in the figure), light is received by the light receiving portion 46b. Then, the safety control of the control unit 47 to which the light receiving state is input as a signal confirms the negative side of the safety state, and the driving control of the electric motor 49 is not performed even if the operation unit 42 is operated.

Embodiment 2 of the tablet crusher of the present invention will be described with reference to the drawings, particularly regarding the components and operations related to ensuring safety.

5(a) and 5(b) are both a plan view and a front view of the optical path advance/retreat member 35 and the light transmitting/receiving member 46 with the crushing mechanism 30 attached to the main body 40. FIG. (a) shows a state in which the light reflecting portion 35b of the optical path advance/retreat member 35 enters the optical path of the light transmitting/receiving member 46, and It shows a state of exiting from the optical path.

This tablet crusher differs from that of the first embodiment described above in that the light shielding portion 35a of the optical path advance/retreat member 35 is replaced with the light reflecting portion 35b, and the light transmitting portion 46a and the light receiving portion 46b of the light transmitting/receiving member 46 are replaced by the light reflecting portion 35b. , and the safety control of the control unit 47 enables the operation of the electric motor 49 when the light receiving unit 46b receives light, but suppresses it at other times.
In particular, the optical path from the light transmitting section 46a to the light receiving section 46b is a refraction path formed by reflection of the light reflecting section 35b. 46b cannot receive light.

Therefore, when the crushing mechanism portion 30 is attached to the main body portion 40 and the container portion 20 is attached to the crushing mechanism portion 30, the intersection of the light sending direction of the light sending portion 46a and the light receiving direction of the light receiving portion 46b The light reflecting portion 35b comes to the site (see FIG. 5A), and the light reflecting portion 35b is positioned at the inflection point of the optical path from the light transmitting portion 46a to the light receiving portion 46b, where the light is reflected (see FIG. 5A). Then, see the dashed-dotted line with an arrow), the light is received by the light receiving portion 46b. Then, the safety control of the control unit 47, which receives the light-receivable state as a signal, confirms the positive side of the safety state, and drives and controls the electric motor 49 according to the operation of the operation unit 42. FIG.

On the other hand, when the crushing mechanism portion 30 is not attached to the main body portion 40, or when the crushing mechanism portion 30 is attached to the main body portion 40 but the container portion 20 is not attached to the crushing mechanism portion 30, the feed mechanism 30 is not attached. The light reflecting portion 35b does not reach the light transmitting direction of the light portion 46a and the light receiving direction of the light receiving portion 46b (see FIG. 5B), and the light reflecting portion 35b is out of the optical path from the light transmitting portion 46a to the light receiving portion 46b. Since the light is not reflected there (see the one-dot chain line with an arrow in the drawing), the light receiving portion 46b cannot receive light.

Then, the safety control of the control section 47 that receives the signal input of the non-light-receiving state confirms the negative side of the safety state, and the drive control of the electric motor 49 is not performed even if the operation section 42 is operated.
Correct transmission and reception of light cannot be performed due to a failure of the light transmission unit 46a or the light reception unit 46b, or due to an abnormality in a related electric circuit part or the optical path advance/retreat member 35, etc. In this case as well, the safety control of the control unit 47 suppresses the driving of the electric motor 49 in the non-light-receiving state, so the safety is high.

[others]
Although not mentioned in the above embodiment, an annular soft elastic member 39 such as a rubber O-ring is provided on the contact surface between the container portion 20 and the crushing mechanism portion 30 from the viewpoint of preventing rattling and powder leakage. (See FIG. 1(b)).
Further, the corners of the engaging portion between the container portion 20 and the crushing mechanism portion 30 are preferably rounded, such as R processing, in order to facilitate smooth fitting.
Further, the crushing mechanism contact plate 43c of the main body 40 moves away from the engaging transmission part 45 so as not to interfere with the driving of the electric motor 49 when the crushing mechanism 30 is attached (see FIG. 1). When the 30 is not attached (see FIG. 2(b)), it is raised to the engagement transmission portion 45 by a biasing force such as a spring (not shown) for sealing.

5... tablets,
10... Tablet grinder,
20... Container part,
21... Bowl body part, 22... Opening part, 23... Overhanging part (fitting state fixing means),
30... pulverization mechanism,
31... Cylindrical part, 32... Central board part,
33... blade-shaped member, 34... tension spring (biasing elastic member),
35... Optical path advancing/retreating member, 35a... Light shielding part, 35b... Light reflecting part,
36... Engagement transmission part, 37... Inner claw part (fitting state fixing means), 38... Outer claw part,
40... main body,
41 ... housing, 42 ... operation unit, 43 ... upper edge,
43a... notch, 43b... notch, 44... guide member,
45... Engagement transmission part, 46... Transmitting/receiving member, 46a... Light transmitting part, 46b... Light receiving part,
47... Control unit (safety means), 48... Power supply unit, 49... Electric motor (driving member)

Claims (3)

A main body part containing an electric driving member and equipped with a light transmitting/receiving member, and an optical path advancing/retracting member that rotatably holds a blade-like member and has a light shielding part are provided, and are detachable from the main body part. When attached to the main body, the blade member is driven by the driving member and the optical path advance/retreat member faces the optical path of the light transmitting/receiving member; A container part whose opening can be attached to and detached from the crushing mechanism part, and a safety means incorporated in the main body part for enabling the operation of the driving member when the light transmitting/receiving member is shielded, but suppressing the operation when the light is received. In a tablet crusher equipped with
The light transmitting/receiving member is housed in the main body, and when the crushing mechanism is attached to the main body, the light shielding portion of the optical path advance/retreat member enters the inside of the main body through the upper opening of the main body. The optical path advance/retreat member is movably attached to the crushing mechanism, and when the container is attached to the crushing mechanism, the light shielding portion is biased toward the light shielding position of the light path. and the light shielding portion is urged in a direction away from the light shielding position when the container portion is removed from the crushing mechanism portion. A main body portion that incorporates an electric driving member and is equipped with a light transmitting/receiving member, and a blade-shaped member that is rotatably held and that is equipped with an optical path advance/retreat member that is detachable from and attached to the main body portion. Then, the blade member is driven by the driving member and the optical path advance/retreat member faces the optical path of the light transmitting/receiving member. A tablet crusher comprising a container part that can be attached to and detached from a crushing mechanism part, and a safety means that is incorporated in the main body part and selects whether or not to operate the driving member according to the light receiving state of the light transmitting and receiving member. in
The optical path advance/retreat member has a light reflecting portion and is mounted in a movable state with respect to the crushing mechanism portion, the light transmitting/receiving member is housed in the main body portion, and the crushing mechanism portion is attached to the crushing mechanism portion as described above. When attached to the main body, the light reflecting portion of the optical path advance/retreat member enters the inside of the main body from the upper opening of the main body, and when the container is attached to the crushing mechanism, the light is reflected. When the container portion is removed from the crushing mechanism, the light reflecting portion causes the light transmitting/receiving member to transmit and receive light. so that the safety means permits operation of the drive member when receiving light from the light receiving and transmitting member but inhibits it otherwise. A tablet crusher characterized by: 2. The main body is provided with a pulverizing mechanism contact plate for opening and closing the upper opening of the main body according to attachment and detachment of the pulverizing mechanism with respect to the upper surface of the main body . Item 2. The tablet crusher described in item 2.

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