KR100576991B1 - Bottle gripping device - Google Patents

Abstract

By holding the bottle so as not to shake, it is possible to prevent the bottle from cracking or breaking, and also to provide a holding device for a compact bottle.

A gripping apparatus 1 for gripping the bottle B using the concave portion 15 of the bottle B. The holding portion 2 formed so as to surround the entire circumference of the neck portion 14, the sliding tube 26 provided to be slidable along the outer circumferential surface 22 of the holding portion 2, and the holding portion 2 A plurality of through holes 4 formed in the vicinity of the lower end portion and a plurality of engaging members 5 held in each of the through holes 4 are provided. When the sliding cylinder 26 is raised to the first position P1, the engaging member 5 moves toward the outside of the holding portion 2 in the radial direction Y, and becomes retractable. In this case, the fitting of the retaining portion 2 to the neck portion 14 is permitted, and when the sliding cylinder 26 is lowered to the second position P2, a part of the engaging member 5 penetrates. It is maintained in the state which protruded toward the neck part 14 from the hole 4, It is characterized by being pushed by the concave part 15, and engaging.

Bottles, cutouts, necks, through-holes, fastening members, retainers, gripping devices, sliding barrels,

Description

Bottle gripper {BOTTLE GRIPPING DEVICE}

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view showing a first embodiment of a gripping apparatus according to the present invention.

2 is a longitudinal sectional view showing the main part.

3 is a schematic front view showing the operation in the case where the gripping device is attached to the conveying device of the bottle.

4 is a longitudinal sectional view showing a gripping apparatus according to the present invention.

5 is a longitudinal sectional view showing a modification of the engaging member.

Fig. 6 is a cross sectional view showing a modification of the holding portion and the sliding cylinder.

Fig.7 (a), (b) is a longitudinal cross-sectional view which shows Example 2 of the holding device which concerns on this invention, (c) is the top view which looked at the holding device of the holding state shown in FIG.7 (b) from below. .

8 (a) and 8 (b) are longitudinal cross-sectional views showing the holding device provided with a pressing part.

9 is a longitudinal sectional view showing a holding device according to a third embodiment.

(Explanation of symbols for the main parts of the drawing)

1: holding device 2: holding part

22: outer surface 4: through hole

4a: drop prevention portion 5: contact member

26: sliding tube (moving body) 26a: first inner peripheral surface

26b: 2nd inner peripheral surface 29: workpiece insertion hole

35: attachment 35a: concave

P1: first position P2: second position

L: Axis of the holding part Y: Diameter direction

Z: Up and down B: Bottle

14: neck part 15: narrowed part

16: inlet 16a: peripheral edge of inlet

13: shoulder 42: press

36: coil spring (pressing means) 90: auxiliary member

The present invention relates to a gripping apparatus suitable for gripping a bottle.

Conventionally, the structure of the chuck was inevitably complicated to catch workpieces of various shapes, sizes and diameters. However, it is often sufficient if a workpiece of a single shape, size or diameter can be caught.

For example, the following two documents are known as a holding device for holding a bottle.

[Patent Document 1] Japanese Patent Application Laid-Open No. 8-108389 (page 2-4, Figure 1)

[Patent Document 2] Japanese Patent Application Laid-Open No. 62-153019 (page 1-3, Fig. 1)

The holding device of the said patent document 1 consists of a holding member with an expanded body, and hold | maintains and releases a bottle by expansion and contraction of this expanded body. However, when the bottle in alignment is held using this apparatus, the bottle may shake in the transfer process after the bottle is held, and adjacent bottles may contact each other, causing cracking or breakage.

In addition, in order to prevent cracking and damage of a bottle, the holding device of the said patent document 2 engages the holding member formed in the female form or the link shape with the concave part of a bottle, and then, after holding a bottle and widening the space | interval between bottles, do. However, in such an apparatus, the structure becomes complicated, and since the bottle is gripped by a female holding member, the entire apparatus becomes large.

Accordingly, an object of the present invention is to provide a gripping apparatus for a bottle that can be gripped so that the bottle does not shake, thereby preventing cracking and damage to the bottle.

In order to achieve the above object, the gripping apparatus of the present invention is a gripping apparatus of a bottle gripping a concave portion formed in the neck portion of the bottle, the cylindrical holding portion formed so as to surround the entire circumference of the neck portion, and the holding portion A plurality of through holes penetrating the holder in the radial direction, a plurality of resin contact members each freely held in the respective through holes, and the through holes and the contact members in the holder. It is provided on the upper side, and is formed so that diameter may become small as it goes downward from the upper side, and is provided in the conical surface of the cone shape which can contact the peripheral part of the inlet part of a bottle, and is provided in the outer periphery of the said holding part, Relatively movable up and down in the axial direction of the holding portion relative to the holding portion, and the contact member passes through A first position that allows the contact member to move in the radial direction within the through hole, while preventing the dropping out of the retainer from the yoke, and a portion of the contact member from the through hole to the An annular movable body which is movable between a second position for holding the contact member in a state of protruding inwardly, and in the released state before gripping the bottle, the movable body is moved to the first position, thereby Peripheral edges of the inlet portion of the bottle allow for the fitting of the retaining portion to the neck portion by allowing the contact member to retract outward in the radial direction, the concave surface of which the diameter decreases from the lower side upwards In the holding state in contact with the part, the movable body is moved to the second position. Copper, whereby in a portion of the contact member protruding toward the inside in the radial direction and engaged state is pushed in the constricted portion.

(The best form to carry out invention)

In the present invention, the attachment may be attached depending on the presence or absence of the cap of the bottle. Generally, in the conveyance process of a bottle, the bottle with a cap (cover) may be conveyed, and the bottle with no cap may be conveyed. By the presence or absence of the said cap, even when conveying the same bottle, the magnitude | size of the diameter vicinity of the upper end part of a bottle changes. When carrying a bottle with a cap, the holding portion fits into the neck portion of the bottle, and the plurality of engaging members engage with the concave portion of the bottle, so that the bottle can be gripped so as not to shake. On the other hand, in the case of conveying the bottle without a cap, the attachment for holding the bottle in a stable posture can be attached to the holding device so that the posture of the bottle can be held in a stable state so as not to shake. In addition, by attaching the attachment depending on the presence or absence of the cap, one gripper can hold the bottle corresponding to a bottle in another state without changing the structure of the gripper itself, thereby increasing the versatility.

The engaging member (contact member) is made of resin. As a result, when the engagement member is slightly elastically deformed when pressed against the concave portion of the bottle, the contact area with the concave portion becomes large, so that the bottle can be held in a more stable state. In addition, damage to the bottle can also be prevented (it is hard as a steel ball, so the bottle may be broken by the force of the piston).

In addition, in this invention, a "constricted part" means the site | part where the neck part of a bottle curved smoothly and became constricted, and also means the step part formed by the one part or all part of the convex part provided in the neck part.

In this invention, the pressing part which contacts this shoulder part and presses this shoulder part may be provided in the lower end part of the said holding part.

In this way, since the said press part can press the shoulder part which is near the center of a bottle, the shake of a bottle can be suppressed, and a bottle can be grasped more stably.

Moreover, in this invention, the auxiliary member provided in the said holding part and supported up and down in the axial direction of the said holding part with respect to the said holding part, and the pressurizing means which presses this auxiliary member downward further, The said auxiliary | assistance is provided. The truncated cone-shaped concave surface may be formed at the lower end of the member.

In this case, the concave surface can always be brought into contact with the circumferential edge portion of the upper end of the bottle by the pressing force of the pressing means in the holding state of the bottle, even if the shape of the bottle is somewhat changed or with or without a cap. The bottle can be gripped so as not to shake.

(Example 1)

EMBODIMENT OF THE INVENTION Hereinafter, Embodiment 1 of this invention is described according to drawing. This Example 1 demonstrates the case where the bottle with a cap is gripped first.

As shown in FIG. 3, the holding apparatus 1 of this invention is attached to the conveying apparatus 100 for conveying the bottle B, for example, and the bottle B is carried out at the predetermined | prescribed holding position PC. ), And after the transfer by the transfer device 100, the bottle B is released at a predetermined transfer position PR different from the holding position PC.

As shown to Fig.1 (a), (b), the holding device 1 is equipped with the holding body 200, the flange 3, and the sliding cylinder (moving body) 26. As shown in FIG. The holding part 2 is integrally formed in the lower end part of the holding body 200.

The holding portion 2 is formed in a cylindrical shape so as to surround the entire circumference of the neck portion 14 of the bottle B, and fits into the neck portion 14. The inner diameter of the inner circumferential surface 21 of the holding portion 2 is set to approximately the same size as the outer diameter of the neck portion 14. Moreover, the lower end part of the said holding part 2 is provided with the taper surface 2a which diameter is reduced from below to upward so that the bottle B may be centered when fitting to the said neck part 14. .

The flange 3 is fastened to an upper end of the gripping body 200 by a bolt (not shown). A cylinder 17 is formed below the flange 3, that is, in the vicinity of the upper portion of the gripping main body 200, and a piston 18 is inserted into the cylinder 17. The flange 3 is provided with a communication hole 3a communicating with the cylinder 17. The piston 18 is lowered by supplying air into the cylinder 17 from the communication hole 3a.

The sliding cylinder 26 is formed in a cylindrical shape and has first and second inner circumferential surfaces 26a and 26b. The inner diameter of the first inner circumferential surface 26a of the sliding cylinder 26 is set to substantially the same size as the outer diameter of the outer circumferential surface 22 of the gripping body 200 (holding portion 2), and the first inner circumferential surface ( 26a) is fitted to the outer circumferential surface 22. On the other hand, the inner diameter of the second inner circumferential surface 26b of the sliding cylinder 26 is set to a diameter slightly larger than the outer diameter of the outer circumferential surface 22. The sliding cylinder 26 is held by the rod 25 so that the sliding cylinder 26 can slide in the vertical direction Z along the outer circumferential surface 22 of the gripping body 200 (holding portion 2). The rod 25 is stopped by the stop wheel 31 so as not to move in the radial direction Y with respect to the sliding cylinder 26.

As shown in Fig. 1 (a), the rod 25 sequentially moves from the outside of the gripping apparatus 1 to the sliding cylinder 26, the gripping body 200, and the piston 18 in the radial direction ( It is penetrated by Y). Accordingly, the sliding cylinder 26 is connected to the piston 18 through the rod 25, and the sliding cylinder 26 is moved by the vertical movement of the piston 18 to FIG. 1 (a). It moves up and down between the 1st position P1 shown to be, and the 2nd position P2 shown to FIG. 1 (b). In addition, the allowable hole 32 in the gripping main body 200 through which the rod 25 penetrates is formed in a long hole shape along the vertical direction Z to allow vertical movement of the rod 25. have.

In the holding body 200, a stopper 19 for positioning the lower end (second position) P2 of the piston 18 (sliding cylinder 26) below the piston 18. Is installed. The stopper 19 is held in the gripping main body 200 by a pin 20. A return spring 33 is provided between the stopper 19 and the lower end portion 18a of the piston 18. As shown in Fig. 1 (b), the return spring 33 is compressed when the piston 18 is lowered, and the piston 18 is raised by the spring force generated by the compression to raise the end (first). It returns to 1 position (P1).

In the holding portion 2, a plurality of through holes 4 penetrating the holding portion 2 in the radial direction Y are drilled. In each of the through holes 4, an engagement member (contact member) 5 is held, respectively. The engaging member 5 has an outer surface of a substantially spherical shape and is made of resin. The through-hole 4 and the engaging member 5 have a narrow portion formed in the neck portion 14 when the holding portion 2 is fitted to the neck portion 14 of the bottle B ( It is installed in the position corresponding to 15).

In addition, the through-hole 4 and the engaging member 5 are not only two places on the left and right sides in the longitudinal cross-sectional view of FIG. 1 with respect to the neck portion 14 of the bottle B, as shown by a dashed-dotted line, It is installed in the position before and after perpendicular to the ground, and is installed in four places in total.

As shown in FIG. 2, in the vicinity of the respective through holes 4 on the inner circumferential surface 21 of the holding portion 2, a drop preventing portion 4a is formed integrally with the holding portion 2. have. The fall preventing portion 4a is for preventing the engaging member 5 from falling from the through hole 4 into the space inside the holding portion 2.

In the release state (FIG. 1 (a)) in which the sliding cylinder 26 rises to the first position P1, the outer side of the engagement direction 5 in the radial direction Y is shown in FIG. As shown by the dashed-dotted line, the 2nd inner peripheral surface 26b of the said sliding cylinder 26 adjoins. As described above, since the inner diameter of the second inner circumferential surface 26b is set to a diameter slightly larger than the outer diameter of the outer circumferential surface 22 of the holding portion 2, the engaging member 5 is a fall prevention portion ( It can move slightly in the radial direction Y in the space enclosed by 4a), the through-hole 4, and the 2nd inner peripheral surface 26b. Therefore, as shown in Fig. 1 (a), when fitting the retaining portion 2 to the neck portion 14 of the bottle B, the fastening member 5 has a radial direction (Y). By moving outward and retracting, the fitting of the retaining portion 2 to the neck portion 14 is allowed.

When the piston 18 is lowered and the sliding cylinder 26 is lowered, as shown by a solid line in FIG. 2, the piston 18 is pushed against the sliding cylinder 26 so that the engagement member 5 is radially oriented. Move toward the inside of (Y). In the holding state (Fig. 1 (b)) in which the sliding cylinder 26 is further lowered to reach the second position P2, the engaging member 5 is the first inner peripheral surface of the sliding cylinder 26. It is pushed by the 26a and moves toward the inside of the radial direction Y, and a part of the said engagement member 5 protrudes from the said through hole 4 toward the space inside of the said holding part 2 It stays in one state. Therefore, a part of the engaging member 5 is pushed into the concave portion 15 to engage, and the gripping apparatus 1 can grip the bottle B by the engaging.

action:

Next, the operation of the apparatus will be described.

As shown in FIG. 3, the holding | gripping apparatus 1 is attached to the conveying apparatus 100 in multiple numbers corresponding to the position of the some bottle B vertically and horizontally aligned at the predetermined holding position PC. It is. Each holding device 1 is waiting above the holding position PC while the bottle B is being conveyed by a conveying means different from the conveying device 100. When the bottle B aligned vertically and horizontally is conveyed to the said holding position PC, the conveying apparatus 100 descends from the said standby position, and the said several holding | gripping apparatus 1 will descend | fall.

At the time of the lowering, each holding device 1 is held in the released state shown in Fig. 1 (a), so that the holding part 2 with respect to the neck portion 14 of the bottle B is inserted. Customization is allowed.

When air is sent from the communication hole 3a of the flange 3 into the cylinder 17 in a state where the holding portion 2 is fitted to the neck portion 14, the piston 18 is lowered, and FIG. 1. As shown in (b), the sliding cylinder 26 descends. The plurality of engaging members 5 are pushed against the first inner circumferential surface 26a of the sliding cylinder 26 so that a portion of the engaging member 5 faces the neck portion 14 from the through hole 4. It is kept in a protruding state, and is pushed into the concave part 15 of the bottle B, and it engages. As a result, each holding device 1 grips the bottle B. FIG. In addition, in order to maintain the holding state, the air pressure in the cylinder 17 is maintained at a constant pressure.

When the bottle B is gripped by the holding device 1, the bottle B is lifted by the conveying device 100 while maintaining the alignment state. Thereafter, the bottle B is transferred to the predetermined transfer position PR by the transfer device 100. At the transfer position PR, when the air pressure in the cylinder 17 of each holding device 1 is released, the piston 18 is raised by the action of the spring force of the compressed return spring 33, The sliding barrel 26 is raised. Therefore, each holding | maintenance apparatus 1 will be in the release state shown to FIG. 1 (a), and will release | release bottle B and transfer of bottle B is completed.

When the transfer of the bottle B is completed, the conveying apparatus 100 moves and returns to the said standby position, and waits.

In this manner, the retaining portion 2 is fitted to surround approximately the entire circumference of the neck portion 14 of the bottle B, and the plurality of engaging members 5 are attached to the concave portion 14 of the bottle B. By engaging with, the bottle B can be gripped so as not to shake. Therefore, even if the several bottles B are conveyed as they are, the bottles B are not cracked or damaged. In addition, since the gripping apparatus 1 grips the bottle B only by the sliding cylinder 26 moving up and down, the width | variety of each holding apparatus 1 becomes compact, as shown in FIG. Even when a plurality of gripping apparatuses 1 are attached, the whole conveying apparatus 100 can be downsized.

In addition, since the engaging member 5 is made of resin, the engaging member 5 slightly deforms in accordance with the shape of the concave portion 15 when pressed against the concave portion 15, so that the concave portion Since the contact area with (15) becomes large, the bottle B can be gripped more reliably.

In FIG. 4, the holding device 1 is provided with an attachment 35 fitted to the inner circumferential surface 21 of the holding portion 2. This attachment 35 attaches to the holding device 1, when holding the bottle B without a cap.

The attachment 35 is a member formed in a substantially cylindrical shape to a circumferential shape, and a conical surface 35a having a truncated cone shape is formed at the lower end thereof so that the diameter thereof is reduced as it goes upward from below. As shown in FIG. 4, in the holding state of the bottle B, the concave surface 35a abuts against the circumferential edge 16a of the inlet portion 16 of the bottle B. As shown in FIG. By this abutment and the engagement of the engaging member 5 with respect to the concave portion 15, the bottle B is held between two different positions. Therefore, compared with the case with a cap, even if the bottle B with the outer diameter of the neck part 14 is small, the bottle B can be hold | maintained, maintaining a stable posture, and shake of the bottle B can be prevented. .

Attachment Removal Method:

The attachment 35 is detached in advance depending on the presence or absence of the cap of the bottle B to be gripped (transported). The desorption method will be described below.

Separation method

(1) From the attachment state of FIG. 4, the bolt (not shown) which fastens the flange 3 to the holding body 200 is loosened, and the flange 3 is removed.

(2) The stop wheel 31 which stops the rod 25 with respect to the sliding cylinder 26 is removed, and the rod 25 is pulled out.

(3) The sliding cylinder 26 fitted to the holding body 200 (holding part 2) is removed.

(4) The piston 18 and the return spring 33 are pulled out of the cylinder 17.

(5) The pin 20 holding the stopper 19 and the attachment 35 is pulled out, and the attachment 35 is removed.

After the attachment 35 is removed in the order of (1) to (5) above, the holding device 1 is assembled again, and the attachment 35 is removed.

Attachment method

When attaching the attachment 35, it attaches in the reverse order to said (1)-(5).

By the way, the engagement member (contact member) 5 does not necessarily need to be formed in a spherical shape, for example, so that the engagement member 5 may be formed in a substantially fin shape as shown in FIG. You may also do it. Moreover, in order to make operation smooth, it is preferable to form the outer surface of the outer edge part 5a and the inner edge part 5b of the engagement member 5 in substantially spherical shape. Moreover, you may provide the coil spring which presses in the direction which protrudes the engagement member 5 (inside of the radial direction Y).

In addition, the through-hole 4 of the holding | maintenance part 2 may be made into the long hole shape which continues in the circumferential direction of the holding | maintenance part 2, for example, as shown to FIG. In each of the through-holes 4 having a hole shape, a plurality of engaging members 5 may be held, respectively.

Moreover, although the holding | maintenance part 2 was formed so that the whole circumference | surroundings of the neck part 14 of the bottle B may be formed, you may form in the holding part 2 a plurality of slits generally extending in the up-down direction Z.

Moreover, the said holding part 2 and the sliding cylinder (moving body) 26 may be formed in rectangular cylinder shape, as shown to FIG. 6 (b). However, it is preferable to form the inner peripheral surface 21 of the said holding | maintenance part 2 in circular form in order to prevent a bottle from shaking.

Moreover, the return spring 33 does not necessarily need to be installed, and the piston 18 may be moved up and down by injecting and sucking air into the cylinder 17. In addition, a motor, a solenoid, or the like may be used instead of the air cylinder as a driving source for moving the sliding cylinder 26.

(Example 2)

Next, Example 2 will be described with reference to FIG. 7. The holding device of the second embodiment is a holding device suitable for holding a bottle in the same manner as in the first embodiment. In addition, in the following description, the part different from the said Example 1 is mainly demonstrated, the same code | symbol is attached | subjected to the same part or an equivalent part, and the detailed description is abbreviate | omitted.

As shown to Fig.7 (a), (b), in the holding device 1 which concerns on Example 2, the holding body 200 separate from the holding | maintenance part 2 is provided. The holding part 2 is attached to the lower part of the gripping body 200. The annular movable body 26 is provided in the outer periphery of the said holding part 2. An upper portion of the movable body 26 is fitted outside the gripping body 200 and along the outer circumferential surface 210 of the gripping body 200, in an axial direction (up and down direction) parallel to the axis L of the holding part 2. (Z) is installed to be slidable. On the other hand, the lower part of the movable body 26 surrounds the outer periphery of the holding | maintenance part 2, and is provided so that the diameter may shrink as it goes down, and is approaching the outer peripheral surface 22 of the holding | maintenance part 2 near. . Therefore, the space S between which the said moving body 26 and the said holding | maintenance part 2 become small as cross-sectional area becomes small is formed.

The holding portion 2 is held in each of the plurality of through holes 4 penetrating the holding portion 2 in the radial direction Y, and the respective through holes 4, and the narrowed portion of the bottle B is formed. A plurality of engaging members 5 press-fitted to the portion 15 is provided. As shown to Fig.7 (a), in the release state which the said moving body 26 descended to the 1st position P1, each said engagement member 5 is said toward the said space S. The inside of the through-hole 4 is moved and retractable. At this time, the movable body 26 is in contact with the engaging member 5 to prevent the engaging member 5 from falling out of the holding part 2 from the through hole 4.

On the other hand, as shown in FIG.7 (b), in the holding | maintenance state which the said moving body 26 raised to the 2nd position P2, the said moving body 26 rotates each engagement member 5 radially. By pressing inward of (Y), a part of each engaging member 5 is centered on the holding portion 2 from the through hole 4 as shown in Fig. 7C. Projected toward (L)). A part of the engaging member 5 is held in the state protruding from the through hole 4, and is pushed against the concave portion 15 of the bottle B as shown in Fig. 7B. The bottle B can be gripped by engaging.

In this manner, the holding device according to the second embodiment, in contrast to the first embodiment, is released when the movable body 26 is lowered, and the fitting of the bottle B is allowed, and the movable body 26 is raised. In this case, the bottle B is gripped.

By the way, in the holding | gripping apparatus of Examples 1 and 2 shown in FIG. 4 and FIG. 7, since each said contact member 5 contacts a point 15 with respect to the concave part 15 of the bottle B, However, there is a possibility that the bottle B may swing left and right. In order to prevent this fluctuation, as shown in FIGS. 8A and 8B, the pressing portion 42 may be provided at the lower end of the holding portion 2. This pressing part 42 is integrally provided with the said holding part 2, and has the inner peripheral surface 42a curved so that it may substantially follow the shape of the shoulder part 13 of the bottle B. As shown in FIG.

In the holding state of the bottle B, the press part 42 contacts the whole circumference of the shoulder part 13 of the bottle B, and presses this shoulder part 13, and rocking of the bottle B is performed. This is suppressed. In addition, the bottle B can be held (pressed) at a position closer to the center of the bottle B than the concave surface 35a, and the bottle B can be held in a more stable state.

(Example 3)

9 shows Example 3. FIG.

In the third embodiment, the auxiliary member 90 and the pressing means 36 are provided inside the holding portion 2. The auxiliary member 90 shown in FIG. 9 (a) is supported to be movable up and down along the axial direction L (up and down direction Z) of the holding part 2 with respect to the holding part 2. . That is, the auxiliary member 90 is supported by the pin 20 through the long hole 92 formed along the axial direction L, and can be lifted up and down. A coil spring (an example of the pressing means) 36 is provided between the auxiliary member 90 and the pin 20, and the auxiliary member 90 is pressed downward by the coil spring 36. . Similarly to the attachment 35, a conical surface 35a having a truncated cone shape is provided at the lower end of the auxiliary member 90.

When fitting the retaining portion 2 to the neck portion 14 of the bottle B, the concave surface 35a of the auxiliary member 90 is connected to the edge portion 13a of the upper end 13 of the bottle B. In contact with each other, the auxiliary member 90 is pushed upward in response to the pressing force of the coil spring 36. Subsequently, as shown in FIG. 9B, in the state where the bottle B is held, the auxiliary member 90 is pressed downward by the coil spring 36 to form the concave surface 35a. ) Always comes into contact with the circumferential edge portion 13a. In this way, the auxiliary member 90 is pressed downward by the coil spring 36, so that even if the kind (shape of the upper end) of the bottle B is somewhat changed, or with or without a cap, the bottle B It is possible to hold the bottle (B) in a stable posture by holding it in a stable position.

The present invention can be applied to a holding device suitable for holding a bottle such as a plastic bottle or a beer bottle.

According to the present invention, the movable member is moved up and down in the axial direction of the holder, so that the plurality of engaging members are moved in the radial direction of the holder. In the case where the movable body has moved to the first position, the fitting member is allowed to move to the outside in the radial direction and retract when the retaining portion is fitted to the neck portion of the bottle. When the movable member moves to the second position while the holding portion is fitted to the neck portion, the plurality of engaging members are pushed to the concave portion of the bottle and held in an engaged state, thereby holding the bottle.

Therefore, the bottle is gripped by the holding portion that fits into the neck portion of the bottle and the plurality of engaging members pressed against the concave portion of the bottle so that the bottle is not cracked or damaged during transportation.

Moreover, since a bottle can be gripped only by moving a movable body up and down, a structure becomes simple. In addition, since the width of the holding device becomes compact, even when a plurality of holding devices are attached so as to hold a plurality of bottles in an aligned state, the whole conveying device can be downsized.

Claims (5)

A gripping device of a bottle for holding a narrow portion formed in the neck of the bottle, A cylindrical holding part formed to substantially surround the entire neck of the neck part; A plurality of through holes formed in the holding portion and penetrating the holding portion in a radial direction; A plurality of resin contact members each freely held in the respective through holes; A concave surface of a conical shape which is provided above the through-hole and the contact member in the holding portion, and is formed to decrease in diameter as it goes from below to above, and is able to contact the inlet peripheral edge of the bottle; , It is provided on the outer periphery of the said holding part, and is movable relative to the said holding part in the axial direction of the said holding part according to the said outer periphery, and preventing the said contact member from falling out from the said through-hole to the said holding part, A first position allowing the contact member to move in the radial direction in the through hole; An annular movable body which is movable between a second position for holding the contact member in a state where a part of the contact member protrudes from the through hole into the holding portion, In the released state before gripping the bottle, the movable member is moved to the first position, thereby allowing the contact member to retract outwardly in the radial direction, thereby allowing the fitting of the retaining portion to the neck portion, In the holding state in which the concave surface whose diameter decreases from the lower side to the upper side is in contact with the circumferential edge portion of the inlet portion of the bottle, the movable member is moved to the second position, whereby a part of the contact member is moved in the radial direction. The holding device of the bottle, characterized in that the pressure is engaged with the concave portion in the state protruding inward. The method of claim 1, The holding device of the bottle which is fitted to the inner peripheral surface of the said holding part, is further provided with the attachment with a detachable free flow path, and the said recessed surface is provided in the lower end part of the attachment. The method according to claim 1 or 2, The holding device of the bottle, characterized in that the contact member is formed in a spherical shape. The method according to claim 1 or 2, A holding device for a bottle, which is provided with a pressing portion which contacts the shoulder portion of the bottle and presses the shoulder portion, is provided at the lower end portion of the holding portion. The method of claim 1, An auxiliary member installed inside the holding part and supported to be movable up and down in the axial direction of the holding part with respect to the holding part, and pressing means for pressing the auxiliary member downward, The cone-shaped concave surface is provided at the lower end of the auxiliary member, When fitting the retaining portion to the neck portion of the bottle, the concave surface abuts against the circumferential edge portion of the upper end of the bottle so that the auxiliary member is pushed upwards against the pressing force of the pressing means and at the same time holding the bottle. In the state, the holding device of the bottle characterized in that the contact between the concave surface and the peripheral edge portion is maintained by the pressing force of the pressing means.

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