JPH114956A - Gripping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gripping device in which the load of driving means such as a drive motor, etc., can be reduced, parts such as a hand member, gear, etc., and premium is protected from being damaged, and a shape of the hand member can be changed according to the shape of a premium. SOLUTION: A gripping device 1 is composed of a gripping device main body 2 and a pair of hand members 10, 50. The hand members 10, 50 are composed of arm members 11, 51 and claw members 23, 63. In the arm members 11, 51, the base part is pivotaly attached to the gripping device main body 2, and at the front ends of the arm members, the claw members 23, 63 are pivotaly attached. The claw members 23, 63 are energized in the closing direction by coil springs 33, 73. The arm members 11, 51 are energized in the closing direction by coil springs provided between gears 41, 81. The pair of gears 41, 81 are engaged with each other. The gear 81 is engaged with a drive gear 92 of a drive motor 91 fixed to the gripping device main body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holding device provided with at least a pair of hand members, which can individually take out prizes provided in a prize acquisition game machine.

[0002]

2. Description of the Related Art Conventionally, a prize acquisition game machine (a so-called crane game machine) for lifting a prize placed on a bottom surface of a game machine by moving a gripping device suspended by a string-shaped member in a vertical direction, and Japanese Patent Application Laid-Open No. Hei 8- As described in Japanese Patent Publication No. 112446, the holding device 103 is moved in the horizontal direction or the vertical direction by the expansion and contraction device 102, and is placed on the prize 100 suspended on the suspension member in the game machine 101 or on the bottom surface. There is a prize acquisition game machine 101 for acquiring a prize 100 (see FIGS. 22 to 24).

A gripping device 103 used in these game machines has at least a pair of hand members 106, 1
06, the pair of hand members 106, 10
The prize is gripped by opening and closing 6. The pair of hand members 106, 106 are mainly rotatably attached to the gripping device main body 105.

[0004]

The conventional gripping device 1 described above.
Reference numeral 03 denotes a hand member 10 according to the size of the prize 100 because the hand members 106 and 106 are integrally formed.
There is a problem that the opening and closing angles of the hand members 106 and 106 cannot be adjusted or the shapes of the hand members 106 and 106 cannot be changed according to the shape of the premium 100.

[0005] In particular, when the pair of hand members 106, 106 are opened and closed by a drive motor, the opening and closing angle changes depending on the energizing time of the drive motor. When the opening / closing angle is adjusted according to the small prize 100, the driving motor is subjected to a large load when the large prize 100 is gripped, the heating is performed, the hand member or the gear is damaged, and conversely, the prize is not held. There was a problem that would break. Therefore, in the prize acquisition game machine 101 using the conventional gripping device 103, there is a problem that the size and shape of the prize 100 housed therein are almost the same and lack interest.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and transmits the driving force of a driving means such as a driving motor to a hand member via an elastic member. Even if the prize is large, the load on the driving means such as the drive motor is reduced by the elastic deformation of the elastic member, and the hand member is configured to be freely bent by at least two members. It is an object to provide a gripping device that can change the shape of a gripper.

[0007]

Means for Solving the Problems A gripping device according to claim 1 of the present application has the following configuration to achieve the above object. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member is configured such that a plurality of members are sequentially rotatably connected, adjacent members are linked by a first elastic member, and a terminal member is rotatably connected to the gripping device main body by a base shaft. Attached and the member at the tip forms a claw member. (D) Gears meshing with each other are rotatably provided on the respective base shafts of the pair of hand members.
Meshing with a driving gear driven by a driving means provided on the gripping device main body. (E) The gear and the terminal member of the hand member are linked by a second elastic member.

[0008] The gripping device according to claim 2 of the present application has the following configuration to achieve the above object. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member includes an arm member and a claw member. The base of the arm member is rotatably attached to the main body of the gripping device by a base shaft, and the base of the claw member is turned by the support shaft at the tip of the arm member. It must be movably mounted. (D) The claw member and the arm member are linked by a first elastic member. (E) Gears meshing with each other are rotatably provided on the respective base shafts of the pair of hand members.
Meshing with a driving gear driven by a driving means provided on the gripping device main body. (F) The gear and the arm member are linked by a second elastic member.

[0009] The gripping device according to claim 3 of the present application has the following configuration to achieve the above object. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member includes an arm member and a claw member. The base of the arm member is rotatably attached to the main body of the gripping device by a base shaft, and the base of the claw member is turned by the support shaft at the tip of the arm member. It must be movably mounted. (D) A first engagement protrusion is formed on the arm member or the claw member, and the first engagement protrusion sandwiches the first engagement protrusion on the claw member or the arm member with a predetermined gap therebetween. And a second engaging portion, and the claw member is rotatable within the range of the gap. (E) The claw member is urged in a closing direction by a first elastic member provided between the claw member and the arm member, and the first engagement portion or the first engagement protrusion of the claw member is moved to the arm. Abutting on the first engagement protrusion or the first engagement portion of the member; (F) Gears meshing with each other are rotatably provided on the base shafts of the pair of hand members, and one of the gears meshes with a driving gear driven by a driving unit provided on the gripping device main body. . (G) The arm member or the gear is provided with a second engagement protrusion, and the gear or the arm member is provided with a third engagement portion that engages with the second engagement protrusion. . (H) The arm member is urged in the closing direction by a second elastic member provided between the arm member and the gear, and the second engagement protrusion or the third engagement portion of the arm member is That it is in contact with the third engagement portion or the second engagement protrusion.

The gripping device according to claim 4 of the present application has the following configuration to achieve the above object. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member is configured such that a plurality of members are sequentially rotatably connected, adjacent members are linked to each other by a first elastic member, and a terminal member is rotatably connected to the gripping device main body by a base shaft. Attached and the member at the tip forms a claw member. (D) Gears meshing with each other are provided on each of the terminal members of the pair of hand members, and one of the gears meshes with a driving gear driven by a driving means provided on the gripping device main body. .

[0011] The gripping device according to claim 5 of the present application has the following configuration to achieve the above object. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member is composed of an arm member, an intermediate member, and a claw member. (D) The arm member has a base portion rotatably attached to the gripping device main body by a base shaft, a base portion of an intermediate member is rotatably attached to a tip portion by a first support shaft, and the claw member has a base portion. Is rotatably attached to the front end of the intermediate member by the second support shaft. (E) The arm member and the intermediate member are linked by a first elastic member, and the intermediate member and the claw member are linked by a second elastic member. (F) Gears meshing with each other are provided at the bases of the pair of arm members, and one of the gears meshes with a driving gear driven by driving means provided on the gripping device main body.

A gripping device according to a sixth aspect of the present invention has the following configuration to achieve the above object. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member is composed of an arm member, an intermediate member, and a claw member. (D) The arm member has a base portion rotatably attached to the gripping device main body by a base shaft, a base portion of an intermediate member is rotatably attached to a tip portion by a first support shaft, and the claw member has a base portion. Is rotatably attached to the front end of the intermediate member by the second support shaft. (E) a first engaging projection is formed on the arm member or the intermediate member, and a first engaging portion that engages with the first engaging projection is provided on the intermediate member or the arm member. That you are. (F) the intermediate member is urged in a closing direction by a first elastic member provided between the intermediate member and the arm member;
The first engagement portion or the first engagement protrusion of the intermediate member is in contact with the first engagement protrusion or the first engagement portion of the arm member. (G) A second engagement projection is formed on the intermediate member or the claw member, and a third engagement is formed on the claw member or the intermediate member so as to sandwich the second engagement projection with a predetermined gap therebetween. And a fourth engaging portion, and the claw member is rotatable within the range of the gap. (H) the claw member is urged in a closing direction by a second elastic member provided between the claw member and the intermediate member, and the third engagement portion or the second engagement protrusion of the claw member is set at the intermediate position; The member is in contact with the second engagement protrusion or the third engagement portion. (I) Gears meshing with each other are provided at the bases of the pair of arm members, and one of the gears meshes with a driving gear driven by driving means provided on the gripping device main body.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing one embodiment of the gripping device. FIG. 2 is a side view in which a main part of FIG. 1 is sectioned. 3 to 5 are plan views showing the operation of the gripping device. FIG. 6 is a plan view of the hand member. FIG.
It is the side view which made the principal part of a hand member the cross section. FIG.
It is an exploded side view of a hand member. FIG. 9 is a plan view of one gear. FIG. 10 is a side sectional view of the gear of FIG. FIG. 11 is a plan view of another gear. FIG. 12 is a side sectional view of the gear of FIG. FIG. 13 is a plan view of the arm member. FIG. 14 is a side sectional view of the arm member. FIG. 15 is a bottom view of the arm member. FIG.
FIG. 4 is a plan view of a claw member. FIG. 17 is a side view in partial cross section of the claw member.

The gripping device 1 is a conventional prize acquisition game machine 1
1 and a gripping device main body 2 movably provided in
And at least a pair of hand members 10 and 50 that are attached to the gripping device main body 2 so as to be openable and closable and grip the premium 100 provided in the premium obtaining game machine 101.

The prize acquisition game machine 101 is, for example, shown in FIG.
As shown in FIG. 24 to FIG. 24, the grip device 1 is moved in the horizontal direction or
01, the prize 100 hung on the hanging member or the prize 100 placed on the bottom surface is obtained by gripping, or the gripping device 1 hung by the string-like member is moved in the vertical direction to move the prize 100 in the game machine. There is a prize placed on the bottom surface of the prize which is gripped and lifted (a so-called crane game machine), and is not particularly limited.

The gripping device 1 is attached to the end of the telescopic device 102 or the string-shaped member, and the shape is not particularly limited. In the present embodiment, the gripping device main body 2 includes a substrate 3, an auxiliary plate 5, and a fixed shaft 6 for fixing the substrate 3 and the auxiliary plate 5 in parallel at a predetermined distance. The substrate 3 is formed in an elongated plate shape with a middle part omitted, but may be the same size as the auxiliary plate 5.

The hand members 10 and 50 are the arm members 1
1 and 51 and half-moon shaped claw members 23 and 63. The bases 12, 52 of the arm members 11, 51 are disposed between the base plate 3 and the auxiliary plate 5 of the gripping device main body 2, and
3 and 53, it is rotatably attached to the gripping device main body 2. The bases 25, 65 of the claw members 23, 63 are attached to the tip portions 15, 55 of the arm members 11, 51, respectively.
6 so as to be rotatable.

As shown in FIG. 8, bearing holes 17 and 57 are formed in the front portions 15 and 55 of the arm members 11 and 51, respectively.
The first engagement projections 19,5 are provided around the back surfaces of the bearing holes 17,57.
9 are provided, and bearing holes 20, 6 are provided in the bases 12, 52.
0 are formed, and second engagement projections 21 and 61 are provided around the surfaces of the bearing holes 20 and 60.

The claw members 23, 63 are formed with insertion grooves 26, 66 into which the tip portions 15, 55 of the arm members 11, 51 can be inserted into base portions 25, 65, respectively.
7, 67 are provided. As shown in FIG. 16, a first engaging projection 19, 59 of the arm member 11, 51 is sandwiched between the base portions 25, 65 of the claw members 23, 63 with a predetermined gap therebetween. Concave grooves 32, 72 having engaging portions 29, 69 and second engaging portions 31, 71 are formed, and the claw members 23, 63 are rotatable within the range of the gap.

The arm members 11 and 51 are provided with tip portions 15 and 55
Are inserted into the insertion grooves 26, 66 of the claw members 23, 63,
The first engaging projections 19 and 59 are the concave grooves 3 of the claw members 23 and 63.
2 and 72, and the support shafts 16 and 56 are
The claw members 23 and 63 are rotatably mounted by being inserted into the bearing holes 27 and 67 of the third arm and the bearing holes 17 and 57 of the arm members 11 and 51.

The pawl members 23 and 63 are connected to the support shafts 16 and 5.
Helical spring (first elastic member) 3 attached to 6
One end of each of the fixing members 3 and 73 has a fixing hole 34
74, and the other end is fixed to the fixing hole 3 of the claw members 23 and 63.
5 and 75, the arm members 11, 5
The first engaging portions 29 and 69 of the concave grooves 32 and 72 are in contact with the first engaging projections 19 and 59 of the arm members 11 and 51.

The arm members 11 and 51 have bearing holes 20 and 6 respectively.
The gripping device main body 2 is driven by the base shafts 13 and 53
Is mounted to be rotatable. This base shaft 13,53
Gears 41 and 81 are provided rotatably. The gears 41 and 81 have third and fourth engagement portions 42 and 82 and a fourth engagement portion 43 that sandwich the second engagement protrusions 21 and 61 of the arm members 11 and 51 with a predetermined gap therebetween. , 83
Are formed.

Wound springs (second elastic members) 46 and 86 attached to the base shafts 13 and 53 are attached so as to be sandwiched between the arm members 11 and 51 and the gears 41 and 81.
The arm members 11, 51 have one ends of helical springs (second elastic members) 46, 86 attached to the base shafts 13, 53, which are locked in fixing holes 47, 87 of the gears 41, 81, and the other ends of the arms. By being locked in the fixing holes 49, 89 of the members 11, 51, it is urged in the closing direction with respect to the gears 41, 81, and the second engagement protrusions 21, 51 are formed in the concave grooves 45 of the gears 41, 81. , 85 are in contact with the third engaging portions 42, 82.

The pair of gears 41 and 81 are designed to mesh with each other. One of the gears 81 is the holding device main body 2
And a drive gear 92 attached to a drive shaft of a drive motor 91 fixed to the back surface of the substrate 3 by bolts or the like. The other gear 41 is provided with an operating rod 93 projecting from an arc-shaped long hole 84 formed in the substrate 3. The driving means for rotating the driving gear 92 is not limited to the driving motor 91, but may be an electromagnetic actuator such as a solenoid. Also,
The drive motor 91 is not limited, and can be variously changed according to the situation of a synchronous motor, a pulse motor, or the like.

The operating rod 93 is turned on by a switch 95 fixed to the back surface of the substrate 3 of the gripping device main body 2 by bolts or the like.
N · OFF. This switch 95
Is electrically connected to the drive motor 91 and control means of the prize acquisition game machine 101, and a pair of hand members 1
When 0, 50 is opened to a predetermined position, it is turned ON, and the drive motor 9
Stop the rotation of 1.

The gripping device 1 is attached to the extensible device 102 or the tip of a string-like member of a known prize acquisition game device 101, and presses an operation button (not shown) provided on the front surface of the prize acquisition game device 101. Is moved to a position where the prize can be gripped. The control means of the prize acquisition game device 101 drives the drive motor 91.

When the drive motor 91 is driven, the drive gear 9
2 rotates, and the gears 41 and 81 rotate accordingly.
When the gears 41, 81 rotate, the arm members 11, 51 are pulled in the closing direction by the helical springs (second elastic members) 46, 86, and the hand members 10, 50 are closed.
The claw members 23 and 63 grip the premium 100 from both sides. The rotation angle of the hand members 10 and 50 in the closing direction can be changed by the energizing time of the drive motor 91.

When the control means stops supplying power to the drive motor 91, the rotation of the hand members 10, 50 in the closing direction ends, and the control means returns the hand members 10, 50 to the original position in the closed state. . The control means is a drive motor 9
When the first drive gear 92 is rotated in the reverse direction, the gears 41 and 81 also rotate in the reverse direction, and the hand members 10 and 50 rotate in the opening direction,
The prize held by the hand members 10 and 50 can be dropped into the drop opening and taken out from an outlet provided on the front surface of the prize acquisition game apparatus 101.

When the gears 41 and 81 rotate in a direction to open by a predetermined angle, the operating rod 93 provided on the gear 41 is turned on by the switch 9.
5 is turned ON, and the energization of the drive motor 91 is released via the control means. As described above, when the gripping device 1 returns to the original position, the hand members 10 and 50 stand by in the original open state.

The opening and closing operations of the hand members 10 and 50 are as follows.
The process from the opened state as shown in FIG. 1 to the closed state where the claw members 23 and 63 contact each other as shown in FIG. 3 is performed. As shown in FIG. 4, when the premium 100 having a normal size is gripped, the claw members 23 and 63 are wound around the helical springs (first elastic members) 3 with the arm members 11 and 51 closed.
It is performed in an open state against the elasticity of 3,73.

However, as shown in FIG. 5, when holding the premium 100 larger than usual, the arm members 11 and 51 cannot be gripped only by opening the claw members 23 and 63.
The helical winding springs (second elastic members) 46 and 86 are opened against the elasticity. In this state, the claw members 23 and 63
Are engaged with the first engagement projections 19 and 59 of the arm members 11 and 51, respectively. The gear 4
Although the fourth engaging portions 43 and 83 of the arm members 11 and 51 are not particularly required, the second engaging projections 2 and
The arm members 11 and 51 can be prevented from being excessively opened due to the contact between the arm members 1 and 61.

The opening / closing operation is performed when the helical springs (first elastic members) 33 and 73 are weaker than the helical springs (second elastic members) 46 and 86. When the springs (first elastic members) 33 and 73 are stronger than the helical springs (second elastic members) 46 and 86, the arm members 11 and 51 are opened first, and then the claw members 23 and 73 are opened.
63 will open.

In the above embodiment, the arm members 11 and 51 are set shorter than the claw members 23 and 63 as can be understood from the drawings. However, the arm members 11, 51
If the claw members 23 and 63 are set to substantially the same length as the claw members 23 and 63, the prize 100 can also be gripped by the arm members 11 and 51. By doing so, the arm members 11 and 51 are changed to the prize 1
00, and when the prize 100 is small, the claw member 2
Since the prize 100 surrounds the prize 100, the prize 100 can be reliably held.

When the prize 100 is large, the arm members 11 and 51 and the claw members 23 and 63 are bent along the contour of the prize 100, so that gripping by line contact can be performed instead of point contact as in the related art. Thus, the grip is further ensured. Further, by adjusting the elasticity of the helical springs (first elastic members) 33, 73 and the helical springs (second elastic members) 46, 86, the gripping force can be changed, and the fragile premium can be softened. Can be grasped.

Another embodiment of the present invention will be described with reference to the drawings. FIG. 18 is a plan view showing another form of the hand member. FIG. 19 is a side view in partial cross section of FIG. FIG. 20 is a bottom view of FIG. FIG.
It is explanatory drawing which shows the movement of the hand member of No. 8. Note that the gripping device main body 2 is the same as that of the above-described embodiment, and the description is omitted.

The hand members 150 and 190 are composed of arm members 151 and 191, intermediate members 161 and 201, and half-moon-shaped claw members 171 and 211. The bases 152 and 192 of the arm members 151 and 191 are disposed between the base plate 3 and the auxiliary plate 5 of the gripping device main body 2, and
It is rotatably attached to the gripping device main body 2 by 53.

The tip 155 of the arm member 151, 191
195 includes bases 162,2 of the intermediate members 161,201.
02 is rotatably mounted on the first support shafts 163 and 203. Base 17 of claw members 171 and 211
Reference numerals 2,212 denote tip portions 165 of the intermediate members 161,201.
205 is rotatably attached by the second support shafts 173 and 213.

The intermediate members 161 and 201 are connected to the base 162,
In 202, bearing holes 164, 2 of the first support shafts 163, 203 are provided.
04 is formed, and the second support shaft 17 is
3,213 bearing holes 166,206 are formed.
Further, the intermediate members 161 and 201 are provided with the bearing holes 164 and 2
04 are provided around the first engaging projections 167 and 207, and around the bearing holes 166 and 206.
8, 208 are provided.

The arm members 151 and 191 are
5 and 195, the bearing holes 15 of the first support shafts 163 and 203 are provided.
7, 197 are formed around the bearing holes 157, 197, and the first engagement protrusions 167,
Concave grooves 158 and 198 having first engagement portions 153 and 193 and second engagement portions 154 and 194 for sandwiching the intermediate member 207 with a predetermined gap are formed.
1, 201 are rotatable in the range of the gap.
Further, bearing holes 156 and 196 for the base shafts 13 and 53 are formed in the base portions 152 and 192 of the arm members 151 and 191.

The claw members 171 and 211 are provided with bases 172 and 2
12 are formed with insertion grooves 178 and 218 into which the front portions 165 and 205 of the intermediate members 161 and 201 can be inserted, and the bearing holes 174 and 174 of the second support shafts 173 and 213.
214 are provided. Also, the claw members 171, 211
Are attached to the intermediate members 161, 20
Concave grooves 177, 217 having third engaging portions 175, 215 and fourth engaging portions 176, 216 sandwiching the first second engagement projections 168, 208 with a predetermined gap therebetween are formed. And is rotatable in the range of the gap.

The intermediate members 161 and 201 are connected to the first support shaft 1.
One ends of the helical springs (first elastic members) 181 and 221 attached to 63 and 203 are connected to arm members 151 and 1.
The arm members 151 and 191 are urged in the closing direction by being locked in the fixing holes 182 and 222 of the intermediate member 91 and the other ends in the fixing holes 183 and 223 of the intermediate members 161 and 201. The first engaging protrusions 167 and 207 of the intermediate members 161 and 201 are in contact with the first engaging portions 153 and 193 of the concave grooves 158 and 198.

Similarly, one end of the helical springs (second elastic members) 184 and 224 attached to the second support shafts 173 and 213
1 and 201, and the other end is locked in the fixing holes 186 and 226 of the claw members 171 and 211, so that the intermediate members 161 and 201 are urged in the closing direction. The third engagement portions 175 and 215 of the concave grooves 177 and 217 are
Are in contact with the engagement projections 168 and 208 of the first and second projections.

The base 152 of the arm member 151, 191
192 are formed with gears 187 and 227 that mesh with each other. One of the gears 187 is a drive gear 9 attached to the drive shaft of the drive motor 91 as described above.
The other gear 227 is provided with an operating rod 228 for turning on / off the switch 95.

The opening and closing operations of the hand members 150 and 190 are substantially the same as the opening and closing operations of the hand members 10 and 50.
When holding the premium 100 having a normal size, the arm members 151 and 191 and the intermediate members 161 and 201 are closed, and the claw members 171 and 211 are elastically wound by the helical springs (second elastic members) 184 and 224. Perform in an open state against the

However, when the larger premium 100 is gripped, the claw members 171 and 211 cannot be gripped simply by being opened. Therefore, the elasticity of the winding springs (first elastic members) 181 and 221 of the intermediate members 161 and 201 is not sufficient. Will be opened against. In this state, the fourth engagement portions 176 and 216 of the claw members 171 and 211 are engaged with the second engagement protrusions 168 and 208 of the intermediate members 161 and 201. In addition,
Second engaging portions 154, 19 of arm members 151, 191
4 is not particularly necessary, but the intermediate members 161, 20
The first engagement protrusions 167 and 207 abut, so that the intermediate members 161 and 201 can be prevented from being excessively opened.

The above-mentioned opening / closing operation is performed when the helical springs (second elastic members) 184 and 224 are weaker than the helical springs (first elastic members) 181 and 221.
Conversely, when the helical springs (second elastic members) 184 and 224 are stronger than the helical springs (first elastic members) 181 and 221, the intermediate members 161 and 201 are opened first, and then the claws are opened. The members 171 and 211 are opened.

In the above embodiment, the arm members 151, 1
91, intermediate members 161, 201, claw members 171, 211
Is bent along the contour of the prize 100, so that gripping can be performed by line contact instead of point contact as in the related art, and the gripping is ensured. Further, a helical spring (a second elastic member) 184, 2
24 and a helical spring (first elastic member) 181 and 22
By adjusting the elasticity of 1, the gripping force can be changed, and fragile prizes can be gripped softly.

The above-mentioned elastic members 33, 46, 73, 8
6, 181, 184, 221, and 224 are mounted at predetermined positions in a biased state, but may be mounted in a state in which both members are merely linked, that is, in a state in which they are not biased. For example, in the hand members 10 and 50 of FIG. 1, the claw members 23 and 63 are urged in the closing direction by the helical springs (first elastic members) 33 and 73 attached to the support shafts 16 and 56, respectively. First engagement portions 29, 69
Are in contact with the first engagement projections 19, 59 of the arm members 11, 51. This helical spring (first elastic member) 3
When the first and second engagement projections 19 and 59 are removed without attaching the third and third members 73 and 73, the claw members 23 and 63 do not come into contact with any part. And return to the original position by the elastic restoring force of the helical springs (first elastic members) 33 and 73.

[0049]

As described above, the gripping device according to the present invention transmits the driving force of the driving means such as a driving motor to the hand member via the elastic member. It can be turned in the direction opposite to the driving direction of the driving means within the range of elastic deformation. Therefore, in the case of a prize larger than the prize normally grasped, the pair of hand members can be opened wider than usual within the range of elastic deformation of the elastic member to grasp the prize, and a large load is applied to a driving means such as a drive motor. Such an effect can be prevented, and furthermore, there is an effect that breakage of the hand member and the gear and breakage of the premium can be prevented. Further, since the hand member is configured to be freely bent by at least two members, there is also an effect that the shape of the hand member can be changed along the contour of the premium. Therefore, in the prize acquisition game machine equipped with the gripping device according to each claim of the present application, the size,
There is an effect that various premiums irrespective of the shape and the material can be accommodated.

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of a gripping device.

FIG. 2 is a side view in which a main part of FIG. 1 is sectioned;

FIG. 3 is a plan view showing the operation of the gripping device.

FIG. 4 is a plan view showing the operation of the gripping device.

FIG. 5 is a plan view showing the operation of the gripping device.

FIG. 6 is a plan view of a hand member.

FIG. 7 is a side view in which a main part of the hand member is sectioned.

FIG. 8 is an exploded side view of the hand member.

FIG. 9 is a plan view of one gear.

FIG. 10 is a side sectional view of the gear of FIG. 9;

FIG. 11 is a plan view of another gear.

FIG. 12 is a side sectional view of the gear of FIG. 11;

FIG. 13 is a plan view of the arm member.

FIG. 14 is a side sectional view of an arm member.

FIG. 15 is a bottom view of the arm member.

FIG. 16 is a plan view of a claw member.

FIG. 17 is a side view in partial cross section of the claw member.

FIG. 18 is a plan view showing another form of the hand member.

FIG. 19 is a side view in partial section of FIG. 18;

FIG. 20 is a bottom view of FIG. 18;

FIG. 21 is an explanatory view showing the movement of the hand member in FIG. 18;

FIG. 22 is an overall perspective view of a conventional prize acquisition game machine.

FIG. 23 is a perspective view showing the internal structure of FIG. 22.

FIG. 24 is an overall perspective view of a conventional prize acquisition game machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gripping device 2 Gripping device main body 3 Substrate 5 Auxiliary plate 6 Fixed shaft 10 Hand member 11 Arm member 12 Base 13 Base shaft 15 Tip 16 Support shaft 17 Bearing hole 19 First engagement projection 20 Bearing hole 21 Second engagement Projection 23 Claw member 25 Base 26 Insertion groove 27 Bearing hole 29 First engagement part 31 Second engagement part 32 Concave groove 33 Hanging spring (first elastic member) 34 Fixing hole 35 Fixing hole 41 Gear 42 Third engaging portion 43 Fourth engaging portion 45 Depressed groove 46 Helical spring (second elastic member) 47 Fixing hole 49 Fixing hole 50 Hand member 51 Arm member 52 Base 53 Base shaft 55 Tip 56 Support shaft 57 Bearing hole 59 First engaging protrusion 60 Bearing hole 61 Second engaging protrusion 63 Claw member 65 Base 66 Insertion groove 67 Bearing hole 69 First engaging portion 71 Second engaging portion 72 Groove 73 Tsuru roll Spring (first elastic member) 74 fixing hole 75 fixing hole 81 gear 82 third engaging portion 83 fourth engaging portion 84 long hole 85 concave groove 86 helical spring (second elastic member) 87 fixing hole 89 fixing hole 91 drive motor (drive means) 92 drive gear 93 operating rod 95 switch 100 prize 101 prize acquisition game machine 102 telescopic device 103 gripping device 105 gripping device body 106 hand member 150 hand member 151 arm member 152 base 153 first Engaging part 154 Second engaging part 155 Front part 156 Bearing hole 157 Bearing hole 158 Concave groove 161 Intermediate member 162 Base 163 First support shaft 164 Bearing hole 165 Front part 166 Bearing hole 167 First engagement protrusion 168 Second engagement protrusion 171 Claw member 172 Base 173 Second support shaft 174 Bearing hole 175 Third engagement 176 Fourth engaging portion 177 Depressed groove 178 Insertion groove 181 Hanging spring (first elastic member) 182 Fixing hole 183 Fixing hole 184 Hanging spring (second elastic member) 185 Fixing hole 186 Fixing hole 187 Gear 190 Hand member 191 Arm member 192 Base 193 First engagement part 194 Second engagement part 195 Front part 196 Bearing hole 197 Bearing hole 198 Groove 201 Intermediate member 202 Base 203 First support shaft 204 Bearing hole 205 Destination Part 206 Bearing hole 207 First engagement protrusion 208 Second engagement protrusion 211 Claw member 212 Base 213 Second support shaft 214 Bearing hole 215 Third engagement part 216 Fourth engagement part 217 Depressed groove 218 Insertion groove 221 Hanging spring (first elastic member) 222 Fixing hole 223 Fixing hole 224 Hanging spring (second elastic member) 2 5 fixing hole 226 fixing hole 227 gear 228 operating rod

Claims (6)

[Claims] 1. A gripping device having the following requirements. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member is configured such that a plurality of members are sequentially rotatably connected, adjacent members are linked to each other by a first elastic member, and a terminal member is rotatably connected to the gripping device main body by a base shaft. Attached and the member at the tip forms a claw member. (D) Gears meshing with each other are rotatably provided on the respective base shafts of the pair of hand members.
Meshing with a driving gear driven by a driving means provided on the gripping device main body. (E) The gear and the terminal member of the hand member are linked by a second elastic member. 2. A gripping device having the following requirements. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member includes an arm member and a claw member. The base of the arm member is rotatably attached to the main body of the gripping device by a base shaft, and the base of the claw member is turned by the support shaft at the tip of the arm member. It must be movably mounted. (D) The claw member and the arm member are linked by a first elastic member. (E) Gears meshing with each other are rotatably provided on the respective base shafts of the pair of hand members.
Meshing with a driving gear driven by a driving means provided on the gripping device main body. (F) The gear and the arm member are linked by a second elastic member. 3. A gripping device having the following requirements. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member includes an arm member and a claw member. The base of the arm member is rotatably attached to the main body of the gripping device by a base shaft, and the base of the claw member is turned by the support shaft at the tip of the arm member. It must be movably mounted. (D) A first engagement protrusion is formed on the arm member or the claw member, and the first engagement protrusion sandwiches the first engagement protrusion on the claw member or the arm member with a predetermined gap therebetween. And a second engaging portion, and the claw member is rotatable within the range of the gap. (E) The claw member is urged in a closing direction by a first elastic member provided between the claw member and the arm member, and the first engagement portion or the first engagement protrusion of the claw member is moved to the arm. Abutting on the first engagement protrusion or the first engagement portion of the member; (F) Gears meshing with each other are rotatably provided on the base shafts of the pair of hand members, and one of the gears meshes with a driving gear driven by a driving unit provided on the gripping device main body. . (G) The arm member or the gear is provided with a second engagement protrusion, and the gear or the arm member is provided with a third engagement portion that engages with the second engagement protrusion. . (H) The arm member is urged in the closing direction by a second elastic member provided between the arm member and the gear, and the second engagement protrusion or the third engagement portion of the arm member is That it is in contact with the third engagement portion or the second engagement protrusion. 4. A gripping device having the following requirements. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member is configured such that a plurality of members are sequentially rotatably connected, adjacent members are linked to each other by a first elastic member, and a terminal member is rotatably connected to the gripping device main body by a base shaft. Attached and the member at the tip forms a claw member. (D) Gears meshing with each other are provided on each of the terminal members of the pair of hand members, and one of the gears meshes with a driving gear driven by a driving means provided on the gripping device main body. . 5. A gripping device having the following requirements. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member is composed of an arm member, an intermediate member, and a claw member. (D) The arm member has a base portion rotatably attached to the gripping device main body by a base shaft, a base portion of an intermediate member is rotatably attached to a tip portion by a first support shaft, and the claw member has a base portion. Is rotatably attached to the front end of the intermediate member by the second support shaft. (E) The arm member and the intermediate member are linked by a first elastic member, and the intermediate member and the claw member are linked by a second elastic member. (F) Gears meshing with each other are provided at the bases of the pair of arm members, and one of the gears meshes with a driving gear driven by driving means provided on the gripping device main body. 6. A gripping device having the following requirements. (B) A prize acquisition game machine having a gripping device main body movably provided in the game machine. (B) At least a pair of hand members for holding a prize provided in the prize acquisition game machine are provided on the gripping device main body so as to be freely opened and closed. (C) The hand member is composed of an arm member, an intermediate member, and a claw member. (D) The arm member has a base portion rotatably attached to the gripping device main body by a base shaft, a base portion of an intermediate member is rotatably attached to a tip portion by a first support shaft, and the claw member has a base portion. Is rotatably attached to the front end of the intermediate member by the second support shaft. (E) a first engaging projection is formed on the arm member or the intermediate member, and a first engaging portion that engages with the first engaging projection is provided on the intermediate member or the arm member. That you are. (F) the intermediate member is urged in a closing direction by a first elastic member provided between the intermediate member and the arm member;
The first engagement portion or the first engagement protrusion of the intermediate member is in contact with the first engagement protrusion or the first engagement portion of the arm member. (G) A second engagement projection is formed on the intermediate member or the claw member, and a third engagement is formed on the claw member or the intermediate member so as to sandwich the second engagement projection with a predetermined gap therebetween. And a fourth engaging portion, and the claw member is rotatable within the range of the gap. (H) the claw member is urged in a closing direction by a second elastic member provided between the claw member and the intermediate member, and the third engagement portion or the second engagement protrusion of the claw member is set at the intermediate position; The member is in contact with the second engagement protrusion or the third engagement portion. (I) Gears meshing with each other are provided at the bases of the pair of arm members, and one of the gears meshes with a driving gear driven by driving means provided on the gripping device main body.